// threejs.org/license
var REVISION='124';var CullFaceNone=0;var CullFaceBack=1;var CullFaceFront=2;var PCFShadowMap=1;var PCFSoftShadowMap=2;var VSMShadowMap=3;var FrontSide=0;var BackSide=1;var DoubleSide=2;var FlatShading=1;var NoBlending=0;var NormalBlending=1;var AdditiveBlending=2;var SubtractiveBlending=3;var MultiplyBlending=4;var CustomBlending=5;var AddEquation=100;var SubtractEquation=101;var ReverseSubtractEquation=102;var MinEquation=103;var MaxEquation=104;var ZeroFactor=200;var OneFactor=201;var SrcColorFactor=202;var OneMinusSrcColorFactor=203;var SrcAlphaFactor=204;var OneMinusSrcAlphaFactor=205;var DstAlphaFactor=206;var OneMinusDstAlphaFactor=207;var DstColorFactor=208;var OneMinusDstColorFactor=209;var SrcAlphaSaturateFactor=210;var NeverDepth=0;var AlwaysDepth=1;var LessDepth=2;var LessEqualDepth=3;var EqualDepth=4;var GreaterEqualDepth=5;var GreaterDepth=6;var NotEqualDepth=7;var MultiplyOperation=0;var MixOperation=1;var AddOperation=2;var NoToneMapping=0;var LinearToneMapping=1;var ReinhardToneMapping=2;var CineonToneMapping=3;var ACESFilmicToneMapping=4;var CustomToneMapping=5;var UVMapping=300;var CubeReflectionMapping=301;var CubeRefractionMapping=302;var EquirectangularReflectionMapping=303;var EquirectangularRefractionMapping=304;var CubeUVReflectionMapping=306;var CubeUVRefractionMapping=307;var RepeatWrapping=1000;var ClampToEdgeWrapping=1001;var MirroredRepeatWrapping=1002;var NearestFilter=1003;var NearestMipmapNearestFilter=1004;var NearestMipmapLinearFilter=1005;var LinearFilter=1006;var LinearMipmapNearestFilter=1007;var LinearMipmapLinearFilter=1008;var UnsignedByteType=1009;var ByteType=1010;var ShortType=1011;var UnsignedShortType=1012;var IntType=1013;var UnsignedIntType=1014;var FloatType=1015;var HalfFloatType=1016;var UnsignedShort4444Type=1017;var UnsignedShort5551Type=1018;var UnsignedShort565Type=1019;var UnsignedInt248Type=1020;var AlphaFormat=1021;var RGBFormat=1022;var RGBAFormat=1023;var LuminanceFormat=1024;var LuminanceAlphaFormat=1025;var DepthFormat=1026;var DepthStencilFormat=1027;var RedFormat=1028;var RedIntegerFormat=1029;var RGFormat=1030;var RGIntegerFormat=1031;var RGBIntegerFormat=1032;var RGBAIntegerFormat=1033;var RGB_S3TC_DXT1_Format=33776;var RGBA_S3TC_DXT1_Format=33777;var RGBA_S3TC_DXT3_Format=33778;var RGBA_S3TC_DXT5_Format=33779;var RGB_PVRTC_4BPPV1_Format=35840;var RGB_PVRTC_2BPPV1_Format=35841;var RGBA_PVRTC_4BPPV1_Format=35842;var RGBA_PVRTC_2BPPV1_Format=35843;var RGB_ETC1_Format=36196;var RGB_ETC2_Format=37492;var RGBA_ETC2_EAC_Format=37496;var RGBA_ASTC_4x4_Format=37808;var RGBA_ASTC_5x4_Format=37809;var RGBA_ASTC_5x5_Format=37810;var RGBA_ASTC_6x5_Format=37811;var RGBA_ASTC_6x6_Format=37812;var RGBA_ASTC_8x5_Format=37813;var RGBA_ASTC_8x6_Format=37814;var RGBA_ASTC_8x8_Format=37815;var RGBA_ASTC_10x5_Format=37816;var RGBA_ASTC_10x6_Format=37817;var RGBA_ASTC_10x8_Format=37818;var RGBA_ASTC_10x10_Format=37819;var RGBA_ASTC_12x10_Format=37820;var RGBA_ASTC_12x12_Format=37821;var RGBA_BPTC_Format=36492;var SRGB8_ALPHA8_ASTC_4x4_Format=37840;var SRGB8_ALPHA8_ASTC_5x4_Format=37841;var SRGB8_ALPHA8_ASTC_5x5_Format=37842;var SRGB8_ALPHA8_ASTC_6x5_Format=37843;var SRGB8_ALPHA8_ASTC_6x6_Format=37844;var SRGB8_ALPHA8_ASTC_8x5_Format=37845;var SRGB8_ALPHA8_ASTC_8x6_Format=37846;var SRGB8_ALPHA8_ASTC_8x8_Format=37847;var SRGB8_ALPHA8_ASTC_10x5_Format=37848;var SRGB8_ALPHA8_ASTC_10x6_Format=37849;var SRGB8_ALPHA8_ASTC_10x8_Format=37850;var SRGB8_ALPHA8_ASTC_10x10_Format=37851;var SRGB8_ALPHA8_ASTC_12x10_Format=37852;var SRGB8_ALPHA8_ASTC_12x12_Format=37853;var LoopOnce=2200;var LoopRepeat=2201;var LoopPingPong=2202;var InterpolateDiscrete=2300;var InterpolateLinear=2301;var InterpolateSmooth=2302;var ZeroCurvatureEnding=2400;var ZeroSlopeEnding=2401;var WrapAroundEnding=2402;var NormalAnimationBlendMode=2500;var AdditiveAnimationBlendMode=2501;var TrianglesDrawMode=0;var LinearEncoding=3000;var sRGBEncoding=3001;var GammaEncoding=3007;var RGBEEncoding=3002;var LogLuvEncoding=3003;var RGBM7Encoding=3004;var RGBM16Encoding=3005;var RGBDEncoding=3006;var BasicDepthPacking=3200;var RGBADepthPacking=3201;var TangentSpaceNormalMap=0;var ObjectSpaceNormalMap=1;var KeepStencilOp=7680;var AlwaysStencilFunc=519;var StaticDrawUsage=35044;var DynamicDrawUsage=35048;var GLSL3='300 es';/**
 * https://github.com/mrdoob/eventdispatcher.js/
 */function EventDispatcher(){}Object.assign(EventDispatcher.prototype,{addEventListener:function addEventListener(type,listener){if(this._listeners===undefined)this._listeners={};var listeners=this._listeners;if(listeners[type]===undefined){listeners[type]=[];}if(listeners[type].indexOf(listener)===-1){listeners[type].push(listener);}},hasEventListener:function hasEventListener(type,listener){if(this._listeners===undefined)return false;var listeners=this._listeners;return listeners[type]!==undefined&&listeners[type].indexOf(listener)!==-1;},dispatchEvent:function dispatchEvent(event){if(this._listeners===undefined)return;var listeners=this._listeners;var listenerArray=listeners[event.type];if(listenerArray!==undefined){event.target=this;// Make a copy, in case listeners are removed while iterating.
var array=listenerArray.slice(0);for(var i=0,l=array.length;i<l;i++){array[i].call(this,event);}}}});var _lut=[];for(var i=0;i<256;i++){_lut[i]=(i<16?'0':'')+i.toString(16);}var _seed=1234567;var MathUtils={DEG2RAD:Math.PI/180,RAD2DEG:180/Math.PI,generateUUID:function generateUUID(){// http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript/21963136#21963136
var d0=Math.random()*0xffffffff|0;var d1=Math.random()*0xffffffff|0;var d2=Math.random()*0xffffffff|0;var d3=Math.random()*0xffffffff|0;var uuid=_lut[d0&0xff]+_lut[d0>>8&0xff]+_lut[d0>>16&0xff]+_lut[d0>>24&0xff]+'-'+_lut[d1&0xff]+_lut[d1>>8&0xff]+'-'+_lut[d1>>16&0x0f|0x40]+_lut[d1>>24&0xff]+'-'+_lut[d2&0x3f|0x80]+_lut[d2>>8&0xff]+'-'+_lut[d2>>16&0xff]+_lut[d2>>24&0xff]+_lut[d3&0xff]+_lut[d3>>8&0xff]+_lut[d3>>16&0xff]+_lut[d3>>24&0xff];// .toUpperCase() here flattens concatenated strings to save heap memory space.
return uuid.toUpperCase();},clamp:function clamp(value,min,max){return Math.max(min,Math.min(max,value));},// compute euclidian modulo of m % n
// https://en.wikipedia.org/wiki/Modulo_operation
euclideanModulo:function euclideanModulo(n,m){return (n%m+m)%m;},// Linear mapping from range <a1, a2> to range <b1, b2>
mapLinear:function mapLinear(x,a1,a2,b1,b2){return b1+(x-a1)*(b2-b1)/(a2-a1);},// https://en.wikipedia.org/wiki/Linear_interpolation
lerp:function lerp(x,y,t){return (1-t)*x+t*y;},// http://en.wikipedia.org/wiki/Smoothstep
smoothstep:function smoothstep(x,min,max){if(x<=min)return 0;if(x>=max)return 1;x=(x-min)/(max-min);return x*x*(3-2*x);},smootherstep:function smootherstep(x,min,max){if(x<=min)return 0;if(x>=max)return 1;x=(x-min)/(max-min);return x*x*x*(x*(x*6-15)+10);},// Random integer from <low, high> interval
randInt:function randInt(low,high){return low+Math.floor(Math.random()*(high-low+1));},// Random float from <low, high> interval
randFloat:function randFloat(low,high){return low+Math.random()*(high-low);},// Random float from <-range/2, range/2> interval
randFloatSpread:function randFloatSpread(range){return range*(0.5-Math.random());},// Deterministic pseudo-random float in the interval [ 0, 1 ]
seededRandom:function seededRandom(s){if(s!==undefined)_seed=s%2147483647;// Park-Miller algorithm
_seed=_seed*16807%2147483647;return (_seed-1)/2147483646;},degToRad:function degToRad(degrees){return degrees*MathUtils.DEG2RAD;},radToDeg:function radToDeg(radians){return radians*MathUtils.RAD2DEG;},isPowerOfTwo:function isPowerOfTwo(value){return (value&value-1)===0&&value!==0;},ceilPowerOfTwo:function ceilPowerOfTwo(value){return Math.pow(2,Math.ceil(Math.log(value)/Math.LN2));},floorPowerOfTwo:function floorPowerOfTwo(value){return Math.pow(2,Math.floor(Math.log(value)/Math.LN2));},setQuaternionFromProperEuler:function setQuaternionFromProperEuler(q,a,b,c,order){// Intrinsic Proper Euler Angles - see https://en.wikipedia.org/wiki/Euler_angles
// rotations are applied to the axes in the order specified by 'order'
// rotation by angle 'a' is applied first, then by angle 'b', then by angle 'c'
// angles are in radians
var cos=Math.cos;var sin=Math.sin;var c2=cos(b/2);var s2=sin(b/2);var c13=cos((a+c)/2);var s13=sin((a+c)/2);var c1_3=cos((a-c)/2);var s1_3=sin((a-c)/2);var c3_1=cos((c-a)/2);var s3_1=sin((c-a)/2);switch(order){case'XYX':q.set(c2*s13,s2*c1_3,s2*s1_3,c2*c13);break;case'YZY':q.set(s2*s1_3,c2*s13,s2*c1_3,c2*c13);break;case'ZXZ':q.set(s2*c1_3,s2*s1_3,c2*s13,c2*c13);break;case'XZX':q.set(c2*s13,s2*s3_1,s2*c3_1,c2*c13);break;case'YXY':q.set(s2*c3_1,c2*s13,s2*s3_1,c2*c13);break;case'ZYZ':q.set(s2*s3_1,s2*c3_1,c2*s13,c2*c13);break;default:console.warn('THREE.MathUtils: .setQuaternionFromProperEuler() encountered an unknown order: '+order);}}};class Vector2{constructor(){var x=arguments.length>0&&arguments[0]!==undefined?arguments[0]:0;var y=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;Object.defineProperty(this,'isVector2',{value:true});this.x=x;this.y=y;}get width(){return this.x;}set width(value){this.x=value;}get height(){return this.y;}set height(value){this.y=value;}set(x,y){this.x=x;this.y=y;return this;}setScalar(scalar){this.x=scalar;this.y=scalar;return this;}setX(x){this.x=x;return this;}setY(y){this.y=y;return this;}setComponent(index,value){switch(index){case 0:this.x=value;break;case 1:this.y=value;break;default:throw new Error('index is out of range: '+index);}return this;}getComponent(index){switch(index){case 0:return this.x;case 1:return this.y;default:throw new Error('index is out of range: '+index);}}clone(){return new this.constructor(this.x,this.y);}copy(v){this.x=v.x;this.y=v.y;return this;}add(v,w){if(w!==undefined){console.warn('THREE.Vector2: .add() now only accepts one argument. Use .addVectors( a, b ) instead.');return this.addVectors(v,w);}this.x+=v.x;this.y+=v.y;return this;}addScalar(s){this.x+=s;this.y+=s;return this;}addVectors(a,b){this.x=a.x+b.x;this.y=a.y+b.y;return this;}addScaledVector(v,s){this.x+=v.x*s;this.y+=v.y*s;return this;}sub(v,w){if(w!==undefined){console.warn('THREE.Vector2: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.');return this.subVectors(v,w);}this.x-=v.x;this.y-=v.y;return this;}subScalar(s){this.x-=s;this.y-=s;return this;}subVectors(a,b){this.x=a.x-b.x;this.y=a.y-b.y;return this;}multiply(v){this.x*=v.x;this.y*=v.y;return this;}multiplyScalar(scalar){this.x*=scalar;this.y*=scalar;return this;}divide(v){this.x/=v.x;this.y/=v.y;return this;}divideScalar(scalar){return this.multiplyScalar(1/scalar);}applyMatrix3(m){var x=this.x,y=this.y;var e=m.elements;this.x=e[0]*x+e[3]*y+e[6];this.y=e[1]*x+e[4]*y+e[7];return this;}min(v){this.x=Math.min(this.x,v.x);this.y=Math.min(this.y,v.y);return this;}max(v){this.x=Math.max(this.x,v.x);this.y=Math.max(this.y,v.y);return this;}clamp(min,max){// assumes min < max, componentwise
this.x=Math.max(min.x,Math.min(max.x,this.x));this.y=Math.max(min.y,Math.min(max.y,this.y));return this;}clampScalar(minVal,maxVal){this.x=Math.max(minVal,Math.min(maxVal,this.x));this.y=Math.max(minVal,Math.min(maxVal,this.y));return this;}clampLength(min,max){var length=this.length();return this.divideScalar(length||1).multiplyScalar(Math.max(min,Math.min(max,length)));}floor(){this.x=Math.floor(this.x);this.y=Math.floor(this.y);return this;}ceil(){this.x=Math.ceil(this.x);this.y=Math.ceil(this.y);return this;}round(){this.x=Math.round(this.x);this.y=Math.round(this.y);return this;}roundToZero(){this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x);this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y);return this;}negate(){this.x=-this.x;this.y=-this.y;return this;}dot(v){return this.x*v.x+this.y*v.y;}cross(v){return this.x*v.y-this.y*v.x;}lengthSq(){return this.x*this.x+this.y*this.y;}length(){return Math.sqrt(this.x*this.x+this.y*this.y);}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y);}normalize(){return this.divideScalar(this.length()||1);}angle(){// computes the angle in radians with respect to the positive x-axis
var angle=Math.atan2(-this.y,-this.x)+Math.PI;return angle;}distanceTo(v){return Math.sqrt(this.distanceToSquared(v));}distanceToSquared(v){var dx=this.x-v.x,dy=this.y-v.y;return dx*dx+dy*dy;}manhattanDistanceTo(v){return Math.abs(this.x-v.x)+Math.abs(this.y-v.y);}setLength(length){return this.normalize().multiplyScalar(length);}lerp(v,alpha){this.x+=(v.x-this.x)*alpha;this.y+=(v.y-this.y)*alpha;return this;}lerpVectors(v1,v2,alpha){this.x=v1.x+(v2.x-v1.x)*alpha;this.y=v1.y+(v2.y-v1.y)*alpha;return this;}equals(v){return v.x===this.x&&v.y===this.y;}fromArray(array){var offset=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;this.x=array[offset];this.y=array[offset+1];return this;}toArray(){var array=arguments.length>0&&arguments[0]!==undefined?arguments[0]:[];var offset=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;array[offset]=this.x;array[offset+1]=this.y;return array;}fromBufferAttribute(attribute,index,offset){if(offset!==undefined){console.warn('THREE.Vector2: offset has been removed from .fromBufferAttribute().');}this.x=attribute.getX(index);this.y=attribute.getY(index);return this;}rotateAround(center,angle){var c=Math.cos(angle),s=Math.sin(angle);var x=this.x-center.x;var y=this.y-center.y;this.x=x*c-y*s+center.x;this.y=x*s+y*c+center.y;return this;}random(){this.x=Math.random();this.y=Math.random();return this;}}class Matrix3{constructor(){Object.defineProperty(this,'isMatrix3',{value:true});this.elements=[1,0,0,0,1,0,0,0,1];if(arguments.length>0){console.error('THREE.Matrix3: the constructor no longer reads arguments. use .set() instead.');}}set(n11,n12,n13,n21,n22,n23,n31,n32,n33){var te=this.elements;te[0]=n11;te[1]=n21;te[2]=n31;te[3]=n12;te[4]=n22;te[5]=n32;te[6]=n13;te[7]=n23;te[8]=n33;return this;}identity(){this.set(1,0,0,0,1,0,0,0,1);return this;}clone(){return new this.constructor().fromArray(this.elements);}copy(m){var te=this.elements;var me=m.elements;te[0]=me[0];te[1]=me[1];te[2]=me[2];te[3]=me[3];te[4]=me[4];te[5]=me[5];te[6]=me[6];te[7]=me[7];te[8]=me[8];return this;}extractBasis(xAxis,yAxis,zAxis){xAxis.setFromMatrix3Column(this,0);yAxis.setFromMatrix3Column(this,1);zAxis.setFromMatrix3Column(this,2);return this;}setFromMatrix4(m){var me=m.elements;this.set(me[0],me[4],me[8],me[1],me[5],me[9],me[2],me[6],me[10]);return this;}multiply(m){return this.multiplyMatrices(this,m);}premultiply(m){return this.multiplyMatrices(m,this);}multiplyMatrices(a,b){var ae=a.elements;var be=b.elements;var te=this.elements;var a11=ae[0],a12=ae[3],a13=ae[6];var a21=ae[1],a22=ae[4],a23=ae[7];var a31=ae[2],a32=ae[5],a33=ae[8];var b11=be[0],b12=be[3],b13=be[6];var b21=be[1],b22=be[4],b23=be[7];var b31=be[2],b32=be[5],b33=be[8];te[0]=a11*b11+a12*b21+a13*b31;te[3]=a11*b12+a12*b22+a13*b32;te[6]=a11*b13+a12*b23+a13*b33;te[1]=a21*b11+a22*b21+a23*b31;te[4]=a21*b12+a22*b22+a23*b32;te[7]=a21*b13+a22*b23+a23*b33;te[2]=a31*b11+a32*b21+a33*b31;te[5]=a31*b12+a32*b22+a33*b32;te[8]=a31*b13+a32*b23+a33*b33;return this;}multiplyScalar(s){var te=this.elements;te[0]*=s;te[3]*=s;te[6]*=s;te[1]*=s;te[4]*=s;te[7]*=s;te[2]*=s;te[5]*=s;te[8]*=s;return this;}determinant(){var te=this.elements;var a=te[0],b=te[1],c=te[2],d=te[3],e=te[4],f=te[5],g=te[6],h=te[7],i=te[8];return a*e*i-a*f*h-b*d*i+b*f*g+c*d*h-c*e*g;}invert(){var te=this.elements,n11=te[0],n21=te[1],n31=te[2],n12=te[3],n22=te[4],n32=te[5],n13=te[6],n23=te[7],n33=te[8],t11=n33*n22-n32*n23,t12=n32*n13-n33*n12,t13=n23*n12-n22*n13,det=n11*t11+n21*t12+n31*t13;if(det===0)return this.set(0,0,0,0,0,0,0,0,0);var detInv=1/det;te[0]=t11*detInv;te[1]=(n31*n23-n33*n21)*detInv;te[2]=(n32*n21-n31*n22)*detInv;te[3]=t12*detInv;te[4]=(n33*n11-n31*n13)*detInv;te[5]=(n31*n12-n32*n11)*detInv;te[6]=t13*detInv;te[7]=(n21*n13-n23*n11)*detInv;te[8]=(n22*n11-n21*n12)*detInv;return this;}transpose(){var tmp;var m=this.elements;tmp=m[1];m[1]=m[3];m[3]=tmp;tmp=m[2];m[2]=m[6];m[6]=tmp;tmp=m[5];m[5]=m[7];m[7]=tmp;return this;}getNormalMatrix(matrix4){return this.setFromMatrix4(matrix4).copy(this).invert().transpose();}transposeIntoArray(r){var m=this.elements;r[0]=m[0];r[1]=m[3];r[2]=m[6];r[3]=m[1];r[4]=m[4];r[5]=m[7];r[6]=m[2];r[7]=m[5];r[8]=m[8];return this;}setUvTransform(tx,ty,sx,sy,rotation,cx,cy){var c=Math.cos(rotation);var s=Math.sin(rotation);this.set(sx*c,sx*s,-sx*(c*cx+s*cy)+cx+tx,-sy*s,sy*c,-sy*(-s*cx+c*cy)+cy+ty,0,0,1);return this;}scale(sx,sy){var te=this.elements;te[0]*=sx;te[3]*=sx;te[6]*=sx;te[1]*=sy;te[4]*=sy;te[7]*=sy;return this;}rotate(theta){var c=Math.cos(theta);var s=Math.sin(theta);var te=this.elements;var a11=te[0],a12=te[3],a13=te[6];var a21=te[1],a22=te[4],a23=te[7];te[0]=c*a11+s*a21;te[3]=c*a12+s*a22;te[6]=c*a13+s*a23;te[1]=-s*a11+c*a21;te[4]=-s*a12+c*a22;te[7]=-s*a13+c*a23;return this;}translate(tx,ty){var te=this.elements;te[0]+=tx*te[2];te[3]+=tx*te[5];te[6]+=tx*te[8];te[1]+=ty*te[2];te[4]+=ty*te[5];te[7]+=ty*te[8];return this;}equals(matrix){var te=this.elements;var me=matrix.elements;for(var _i=0;_i<9;_i++){if(te[_i]!==me[_i])return false;}return true;}fromArray(array){var offset=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;for(var _i2=0;_i2<9;_i2++){this.elements[_i2]=array[_i2+offset];}return this;}toArray(){var array=arguments.length>0&&arguments[0]!==undefined?arguments[0]:[];var offset=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;var te=this.elements;array[offset]=te[0];array[offset+1]=te[1];array[offset+2]=te[2];array[offset+3]=te[3];array[offset+4]=te[4];array[offset+5]=te[5];array[offset+6]=te[6];array[offset+7]=te[7];array[offset+8]=te[8];return array;}}var _canvas;var ImageUtils={getDataURL:function getDataURL(image){if(/^data:/i.test(image.src)){return image.src;}if(typeof HTMLCanvasElement=='undefined'){return image.src;}var canvas;if(image instanceof HTMLCanvasElement){canvas=image;}else {if(_canvas===undefined)_canvas=document.createElementNS('http://www.w3.org/1999/xhtml','canvas');_canvas.width=image.width;_canvas.height=image.height;var context=_canvas.getContext('2d');if(image instanceof ImageData){context.putImageData(image,0,0);}else {context.drawImage(image,0,0,image.width,image.height);}canvas=_canvas;}if(canvas.width>2048||canvas.height>2048){return canvas.toDataURL('image/jpeg',0.6);}else {return canvas.toDataURL('image/png');}}};var textureId=0;function Texture(){var image=arguments.length>0&&arguments[0]!==undefined?arguments[0]:Texture.DEFAULT_IMAGE;var mapping=arguments.length>1&&arguments[1]!==undefined?arguments[1]:Texture.DEFAULT_MAPPING;var wrapS=arguments.length>2&&arguments[2]!==undefined?arguments[2]:ClampToEdgeWrapping;var wrapT=arguments.length>3&&arguments[3]!==undefined?arguments[3]:ClampToEdgeWrapping;var magFilter=arguments.length>4&&arguments[4]!==undefined?arguments[4]:LinearFilter;var minFilter=arguments.length>5&&arguments[5]!==undefined?arguments[5]:LinearMipmapLinearFilter;var format=arguments.length>6&&arguments[6]!==undefined?arguments[6]:RGBAFormat;var type=arguments.length>7&&arguments[7]!==undefined?arguments[7]:UnsignedByteType;var anisotropy=arguments.length>8&&arguments[8]!==undefined?arguments[8]:1;var encoding=arguments.length>9&&arguments[9]!==undefined?arguments[9]:LinearEncoding;Object.defineProperty(this,'id',{value:textureId++});this.uuid=MathUtils.generateUUID();this.name='';this.image=image;this.mipmaps=[];this.mapping=mapping;this.wrapS=wrapS;this.wrapT=wrapT;this.magFilter=magFilter;this.minFilter=minFilter;this.anisotropy=anisotropy;this.format=format;this.internalFormat=null;this.type=type;this.offset=new Vector2(0,0);this.repeat=new Vector2(1,1);this.center=new Vector2(0,0);this.rotation=0;this.matrixAutoUpdate=true;this.matrix=new Matrix3();this.generateMipmaps=true;this.premultiplyAlpha=false;this.flipY=true;this.unpackAlignment=4;// valid values: 1, 2, 4, 8 (see http://www.khronos.org/opengles/sdk/docs/man/xhtml/glPixelStorei.xml)
// Values of encoding !== THREE.LinearEncoding only supported on map, envMap and emissiveMap.
//
// Also changing the encoding after already used by a Material will not automatically make the Material
// update. You need to explicitly call Material.needsUpdate to trigger it to recompile.
this.encoding=encoding;this.version=0;this.onUpdate=null;}Texture.DEFAULT_IMAGE=undefined;Texture.DEFAULT_MAPPING=UVMapping;Texture.prototype=Object.assign(Object.create(EventDispatcher.prototype),{constructor:Texture,isTexture:true,updateMatrix:function updateMatrix(){this.matrix.setUvTransform(this.offset.x,this.offset.y,this.repeat.x,this.repeat.y,this.rotation,this.center.x,this.center.y);},clone:function clone(){return new this.constructor().copy(this);},copy:function copy(source){this.name=source.name;this.image=source.image;this.mipmaps=source.mipmaps.slice(0);this.mapping=source.mapping;this.wrapS=source.wrapS;this.wrapT=source.wrapT;this.magFilter=source.magFilter;this.minFilter=source.minFilter;this.anisotropy=source.anisotropy;this.format=source.format;this.internalFormat=source.internalFormat;this.type=source.type;this.offset.copy(source.offset);this.repeat.copy(source.repeat);this.center.copy(source.center);this.rotation=source.rotation;this.matrixAutoUpdate=source.matrixAutoUpdate;this.matrix.copy(source.matrix);this.generateMipmaps=source.generateMipmaps;this.premultiplyAlpha=source.premultiplyAlpha;this.flipY=source.flipY;this.unpackAlignment=source.unpackAlignment;this.encoding=source.encoding;return this;},toJSON:function toJSON(meta){var isRootObject=meta===undefined||typeof meta==='string';if(!isRootObject&&meta.textures[this.uuid]!==undefined){return meta.textures[this.uuid];}var output={metadata:{version:4.5,type:'Texture',generator:'Texture.toJSON'},uuid:this.uuid,name:this.name,mapping:this.mapping,repeat:[this.repeat.x,this.repeat.y],offset:[this.offset.x,this.offset.y],center:[this.center.x,this.center.y],rotation:this.rotation,wrap:[this.wrapS,this.wrapT],format:this.format,type:this.type,encoding:this.encoding,minFilter:this.minFilter,magFilter:this.magFilter,anisotropy:this.anisotropy,flipY:this.flipY,premultiplyAlpha:this.premultiplyAlpha,unpackAlignment:this.unpackAlignment};if(this.image!==undefined){// TODO: Move to THREE.Image
var image=this.image;if(image.uuid===undefined){image.uuid=MathUtils.generateUUID();// UGH
}if(!isRootObject&&meta.images[image.uuid]===undefined){var url;if(Array.isArray(image)){// process array of images e.g. CubeTexture
url=[];for(var _i3=0,l=image.length;_i3<l;_i3++){// check cube texture with data textures
if(image[_i3].isDataTexture){url.push(serializeImage(image[_i3].image));}else {url.push(serializeImage(image[_i3]));}}}else {// process single image
url=serializeImage(image);}meta.images[image.uuid]={uuid:image.uuid,url:url};}output.image=image.uuid;}if(!isRootObject){meta.textures[this.uuid]=output;}return output;},dispose:function dispose(){this.dispatchEvent({type:'dispose'});},transformUv:function transformUv(uv){if(this.mapping!==UVMapping)return uv;uv.applyMatrix3(this.matrix);if(uv.x<0||uv.x>1){switch(this.wrapS){case RepeatWrapping:uv.x=uv.x-Math.floor(uv.x);break;case ClampToEdgeWrapping:uv.x=uv.x<0?0:1;break;case MirroredRepeatWrapping:if(Math.abs(Math.floor(uv.x)%2)===1){uv.x=Math.ceil(uv.x)-uv.x;}else {uv.x=uv.x-Math.floor(uv.x);}break;}}if(uv.y<0||uv.y>1){switch(this.wrapT){case RepeatWrapping:uv.y=uv.y-Math.floor(uv.y);break;case ClampToEdgeWrapping:uv.y=uv.y<0?0:1;break;case MirroredRepeatWrapping:if(Math.abs(Math.floor(uv.y)%2)===1){uv.y=Math.ceil(uv.y)-uv.y;}else {uv.y=uv.y-Math.floor(uv.y);}break;}}if(this.flipY){uv.y=1-uv.y;}return uv;}});Object.defineProperty(Texture.prototype,'needsUpdate',{set:function set(value){if(value===true)this.version++;}});function serializeImage(image){if(typeof HTMLImageElement!=='undefined'&&image instanceof HTMLImageElement||typeof HTMLCanvasElement!=='undefined'&&image instanceof HTMLCanvasElement||typeof ImageBitmap!=='undefined'&&image instanceof ImageBitmap){// default images
return ImageUtils.getDataURL(image);}else {if(image.data){// images of DataTexture
return {data:Array.prototype.slice.call(image.data),width:image.width,height:image.height,type:image.data.constructor.name};}else {console.warn('THREE.Texture: Unable to serialize Texture.');return {};}}}class Vector4{constructor(){var x=arguments.length>0&&arguments[0]!==undefined?arguments[0]:0;var y=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;var z=arguments.length>2&&arguments[2]!==undefined?arguments[2]:0;var w=arguments.length>3&&arguments[3]!==undefined?arguments[3]:1;Object.defineProperty(this,'isVector4',{value:true});this.x=x;this.y=y;this.z=z;this.w=w;}get width(){return this.z;}set width(value){this.z=value;}get height(){return this.w;}set height(value){this.w=value;}set(x,y,z,w){this.x=x;this.y=y;this.z=z;this.w=w;return this;}setScalar(scalar){this.x=scalar;this.y=scalar;this.z=scalar;this.w=scalar;return this;}setX(x){this.x=x;return this;}setY(y){this.y=y;return this;}setZ(z){this.z=z;return this;}setW(w){this.w=w;return this;}setComponent(index,value){switch(index){case 0:this.x=value;break;case 1:this.y=value;break;case 2:this.z=value;break;case 3:this.w=value;break;default:throw new Error('index is out of range: '+index);}return this;}getComponent(index){switch(index){case 0:return this.x;case 1:return this.y;case 2:return this.z;case 3:return this.w;default:throw new Error('index is out of range: '+index);}}clone(){return new this.constructor(this.x,this.y,this.z,this.w);}copy(v){this.x=v.x;this.y=v.y;this.z=v.z;this.w=v.w!==undefined?v.w:1;return this;}add(v,w){if(w!==undefined){console.warn('THREE.Vector4: .add() now only accepts one argument. Use .addVectors( a, b ) instead.');return this.addVectors(v,w);}this.x+=v.x;this.y+=v.y;this.z+=v.z;this.w+=v.w;return this;}addScalar(s){this.x+=s;this.y+=s;this.z+=s;this.w+=s;return this;}addVectors(a,b){this.x=a.x+b.x;this.y=a.y+b.y;this.z=a.z+b.z;this.w=a.w+b.w;return this;}addScaledVector(v,s){this.x+=v.x*s;this.y+=v.y*s;this.z+=v.z*s;this.w+=v.w*s;return this;}sub(v,w){if(w!==undefined){console.warn('THREE.Vector4: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.');return this.subVectors(v,w);}this.x-=v.x;this.y-=v.y;this.z-=v.z;this.w-=v.w;return this;}subScalar(s){this.x-=s;this.y-=s;this.z-=s;this.w-=s;return this;}subVectors(a,b){this.x=a.x-b.x;this.y=a.y-b.y;this.z=a.z-b.z;this.w=a.w-b.w;return this;}multiplyScalar(scalar){this.x*=scalar;this.y*=scalar;this.z*=scalar;this.w*=scalar;return this;}applyMatrix4(m){var x=this.x,y=this.y,z=this.z,w=this.w;var e=m.elements;this.x=e[0]*x+e[4]*y+e[8]*z+e[12]*w;this.y=e[1]*x+e[5]*y+e[9]*z+e[13]*w;this.z=e[2]*x+e[6]*y+e[10]*z+e[14]*w;this.w=e[3]*x+e[7]*y+e[11]*z+e[15]*w;return this;}divideScalar(scalar){return this.multiplyScalar(1/scalar);}setAxisAngleFromQuaternion(q){// http://www.euclideanspace.com/maths/geometry/rotations/conversions/quaternionToAngle/index.htm
// q is assumed to be normalized
this.w=2*Math.acos(q.w);var s=Math.sqrt(1-q.w*q.w);if(s<0.0001){this.x=1;this.y=0;this.z=0;}else {this.x=q.x/s;this.y=q.y/s;this.z=q.z/s;}return this;}setAxisAngleFromRotationMatrix(m){// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToAngle/index.htm
// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
var angle,x,y,z;// variables for result
var epsilon=0.01,// margin to allow for rounding errors
epsilon2=0.1,// margin to distinguish between 0 and 180 degrees
te=m.elements,m11=te[0],m12=te[4],m13=te[8],m21=te[1],m22=te[5],m23=te[9],m31=te[2],m32=te[6],m33=te[10];if(Math.abs(m12-m21)<epsilon&&Math.abs(m13-m31)<epsilon&&Math.abs(m23-m32)<epsilon){// singularity found
// first check for identity matrix which must have +1 for all terms
// in leading diagonal and zero in other terms
if(Math.abs(m12+m21)<epsilon2&&Math.abs(m13+m31)<epsilon2&&Math.abs(m23+m32)<epsilon2&&Math.abs(m11+m22+m33-3)<epsilon2){// this singularity is identity matrix so angle = 0
this.set(1,0,0,0);return this;// zero angle, arbitrary axis
}// otherwise this singularity is angle = 180
angle=Math.PI;var xx=(m11+1)/2;var yy=(m22+1)/2;var zz=(m33+1)/2;var xy=(m12+m21)/4;var xz=(m13+m31)/4;var yz=(m23+m32)/4;if(xx>yy&&xx>zz){// m11 is the largest diagonal term
if(xx<epsilon){x=0;y=0.707106781;z=0.707106781;}else {x=Math.sqrt(xx);y=xy/x;z=xz/x;}}else if(yy>zz){// m22 is the largest diagonal term
if(yy<epsilon){x=0.707106781;y=0;z=0.707106781;}else {y=Math.sqrt(yy);x=xy/y;z=yz/y;}}else {// m33 is the largest diagonal term so base result on this
if(zz<epsilon){x=0.707106781;y=0.707106781;z=0;}else {z=Math.sqrt(zz);x=xz/z;y=yz/z;}}this.set(x,y,z,angle);return this;// return 180 deg rotation
}// as we have reached here there are no singularities so we can handle normally
var s=Math.sqrt((m32-m23)*(m32-m23)+(m13-m31)*(m13-m31)+(m21-m12)*(m21-m12));// used to normalize
if(Math.abs(s)<0.001)s=1;// prevent divide by zero, should not happen if matrix is orthogonal and should be
// caught by singularity test above, but I've left it in just in case
this.x=(m32-m23)/s;this.y=(m13-m31)/s;this.z=(m21-m12)/s;this.w=Math.acos((m11+m22+m33-1)/2);return this;}min(v){this.x=Math.min(this.x,v.x);this.y=Math.min(this.y,v.y);this.z=Math.min(this.z,v.z);this.w=Math.min(this.w,v.w);return this;}max(v){this.x=Math.max(this.x,v.x);this.y=Math.max(this.y,v.y);this.z=Math.max(this.z,v.z);this.w=Math.max(this.w,v.w);return this;}clamp(min,max){// assumes min < max, componentwise
this.x=Math.max(min.x,Math.min(max.x,this.x));this.y=Math.max(min.y,Math.min(max.y,this.y));this.z=Math.max(min.z,Math.min(max.z,this.z));this.w=Math.max(min.w,Math.min(max.w,this.w));return this;}clampScalar(minVal,maxVal){this.x=Math.max(minVal,Math.min(maxVal,this.x));this.y=Math.max(minVal,Math.min(maxVal,this.y));this.z=Math.max(minVal,Math.min(maxVal,this.z));this.w=Math.max(minVal,Math.min(maxVal,this.w));return this;}clampLength(min,max){var length=this.length();return this.divideScalar(length||1).multiplyScalar(Math.max(min,Math.min(max,length)));}floor(){this.x=Math.floor(this.x);this.y=Math.floor(this.y);this.z=Math.floor(this.z);this.w=Math.floor(this.w);return this;}ceil(){this.x=Math.ceil(this.x);this.y=Math.ceil(this.y);this.z=Math.ceil(this.z);this.w=Math.ceil(this.w);return this;}round(){this.x=Math.round(this.x);this.y=Math.round(this.y);this.z=Math.round(this.z);this.w=Math.round(this.w);return this;}roundToZero(){this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x);this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y);this.z=this.z<0?Math.ceil(this.z):Math.floor(this.z);this.w=this.w<0?Math.ceil(this.w):Math.floor(this.w);return this;}negate(){this.x=-this.x;this.y=-this.y;this.z=-this.z;this.w=-this.w;return this;}dot(v){return this.x*v.x+this.y*v.y+this.z*v.z+this.w*v.w;}lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w;}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z+this.w*this.w);}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z)+Math.abs(this.w);}normalize(){return this.divideScalar(this.length()||1);}setLength(length){return this.normalize().multiplyScalar(length);}lerp(v,alpha){this.x+=(v.x-this.x)*alpha;this.y+=(v.y-this.y)*alpha;this.z+=(v.z-this.z)*alpha;this.w+=(v.w-this.w)*alpha;return this;}lerpVectors(v1,v2,alpha){this.x=v1.x+(v2.x-v1.x)*alpha;this.y=v1.y+(v2.y-v1.y)*alpha;this.z=v1.z+(v2.z-v1.z)*alpha;this.w=v1.w+(v2.w-v1.w)*alpha;return this;}equals(v){return v.x===this.x&&v.y===this.y&&v.z===this.z&&v.w===this.w;}fromArray(array){var offset=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;this.x=array[offset];this.y=array[offset+1];this.z=array[offset+2];this.w=array[offset+3];return this;}toArray(){var array=arguments.length>0&&arguments[0]!==undefined?arguments[0]:[];var offset=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;array[offset]=this.x;array[offset+1]=this.y;array[offset+2]=this.z;array[offset+3]=this.w;return array;}fromBufferAttribute(attribute,index,offset){if(offset!==undefined){console.warn('THREE.Vector4: offset has been removed from .fromBufferAttribute().');}this.x=attribute.getX(index);this.y=attribute.getY(index);this.z=attribute.getZ(index);this.w=attribute.getW(index);return this;}random(){this.x=Math.random();this.y=Math.random();this.z=Math.random();this.w=Math.random();return this;}}/*
 In options, we can specify:
 * Texture parameters for an auto-generated target texture
 * depthBuffer/stencilBuffer: Booleans to indicate if we should generate these buffers
*/function WebGLRenderTarget(width,height,options){this.width=width;this.height=height;this.scissor=new Vector4(0,0,width,height);this.scissorTest=false;this.viewport=new Vector4(0,0,width,height);options=options||{};this.texture=new Texture(undefined,options.mapping,options.wrapS,options.wrapT,options.magFilter,options.minFilter,options.format,options.type,options.anisotropy,options.encoding);this.texture.image={};this.texture.image.width=width;this.texture.image.height=height;this.texture.generateMipmaps=options.generateMipmaps!==undefined?options.generateMipmaps:false;this.texture.minFilter=options.minFilter!==undefined?options.minFilter:LinearFilter;this.depthBuffer=options.depthBuffer!==undefined?options.depthBuffer:true;this.stencilBuffer=options.stencilBuffer!==undefined?options.stencilBuffer:false;this.depthTexture=options.depthTexture!==undefined?options.depthTexture:null;}WebGLRenderTarget.prototype=Object.assign(Object.create(EventDispatcher.prototype),{constructor:WebGLRenderTarget,isWebGLRenderTarget:true,setSize:function setSize(width,height){if(this.width!==width||this.height!==height){this.width=width;this.height=height;this.texture.image.width=width;this.texture.image.height=height;this.dispose();}this.viewport.set(0,0,width,height);this.scissor.set(0,0,width,height);},clone:function clone(){return new this.constructor().copy(this);},copy:function copy(source){this.width=source.width;this.height=source.height;this.viewport.copy(source.viewport);this.texture=source.texture.clone();this.depthBuffer=source.depthBuffer;this.stencilBuffer=source.stencilBuffer;this.depthTexture=source.depthTexture;return this;},dispose:function dispose(){this.dispatchEvent({type:'dispose'});}});function WebGLMultisampleRenderTarget(width,height,options){WebGLRenderTarget.call(this,width,height,options);this.samples=4;}WebGLMultisampleRenderTarget.prototype=Object.assign(Object.create(WebGLRenderTarget.prototype),{constructor:WebGLMultisampleRenderTarget,isWebGLMultisampleRenderTarget:true,copy:function copy(source){WebGLRenderTarget.prototype.copy.call(this,source);this.samples=source.samples;return this;}});class Quaternion{constructor(){var x=arguments.length>0&&arguments[0]!==undefined?arguments[0]:0;var y=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;var z=arguments.length>2&&arguments[2]!==undefined?arguments[2]:0;var w=arguments.length>3&&arguments[3]!==undefined?arguments[3]:1;Object.defineProperty(this,'isQuaternion',{value:true});this._x=x;this._y=y;this._z=z;this._w=w;}static slerp(qa,qb,qm,t){return qm.copy(qa).slerp(qb,t);}static slerpFlat(dst,dstOffset,src0,srcOffset0,src1,srcOffset1,t){// fuzz-free, array-based Quaternion SLERP operation
var x0=src0[srcOffset0+0],y0=src0[srcOffset0+1],z0=src0[srcOffset0+2],w0=src0[srcOffset0+3];var x1=src1[srcOffset1+0],y1=src1[srcOffset1+1],z1=src1[srcOffset1+2],w1=src1[srcOffset1+3];if(w0!==w1||x0!==x1||y0!==y1||z0!==z1){var s=1-t;var cos=x0*x1+y0*y1+z0*z1+w0*w1,dir=cos>=0?1:-1,sqrSin=1-cos*cos;// Skip the Slerp for tiny steps to avoid numeric problems:
if(sqrSin>Number.EPSILON){var sin=Math.sqrt(sqrSin),len=Math.atan2(sin,cos*dir);s=Math.sin(s*len)/sin;t=Math.sin(t*len)/sin;}var tDir=t*dir;x0=x0*s+x1*tDir;y0=y0*s+y1*tDir;z0=z0*s+z1*tDir;w0=w0*s+w1*tDir;// Normalize in case we just did a lerp:
if(s===1-t){var f=1/Math.sqrt(x0*x0+y0*y0+z0*z0+w0*w0);x0*=f;y0*=f;z0*=f;w0*=f;}}dst[dstOffset]=x0;dst[dstOffset+1]=y0;dst[dstOffset+2]=z0;dst[dstOffset+3]=w0;}static multiplyQuaternionsFlat(dst,dstOffset,src0,srcOffset0,src1,srcOffset1){var x0=src0[srcOffset0];var y0=src0[srcOffset0+1];var z0=src0[srcOffset0+2];var w0=src0[srcOffset0+3];var x1=src1[srcOffset1];var y1=src1[srcOffset1+1];var z1=src1[srcOffset1+2];var w1=src1[srcOffset1+3];dst[dstOffset]=x0*w1+w0*x1+y0*z1-z0*y1;dst[dstOffset+1]=y0*w1+w0*y1+z0*x1-x0*z1;dst[dstOffset+2]=z0*w1+w0*z1+x0*y1-y0*x1;dst[dstOffset+3]=w0*w1-x0*x1-y0*y1-z0*z1;return dst;}get x(){return this._x;}set x(value){this._x=value;this._onChangeCallback();}get y(){return this._y;}set y(value){this._y=value;this._onChangeCallback();}get z(){return this._z;}set z(value){this._z=value;this._onChangeCallback();}get w(){return this._w;}set w(value){this._w=value;this._onChangeCallback();}set(x,y,z,w){this._x=x;this._y=y;this._z=z;this._w=w;this._onChangeCallback();return this;}clone(){return new this.constructor(this._x,this._y,this._z,this._w);}copy(quaternion){this._x=quaternion.x;this._y=quaternion.y;this._z=quaternion.z;this._w=quaternion.w;this._onChangeCallback();return this;}setFromEuler(euler,update){if(!(euler&&euler.isEuler)){throw new Error('THREE.Quaternion: .setFromEuler() now expects an Euler rotation rather than a Vector3 and order.');}var x=euler._x,y=euler._y,z=euler._z,order=euler._order;// http://www.mathworks.com/matlabcentral/fileexchange/
// 	20696-function-to-convert-between-dcm-euler-angles-quaternions-and-euler-vectors/
//	content/SpinCalc.m
var cos=Math.cos;var sin=Math.sin;var c1=cos(x/2);var c2=cos(y/2);var c3=cos(z/2);var s1=sin(x/2);var s2=sin(y/2);var s3=sin(z/2);switch(order){case'XYZ':this._x=s1*c2*c3+c1*s2*s3;this._y=c1*s2*c3-s1*c2*s3;this._z=c1*c2*s3+s1*s2*c3;this._w=c1*c2*c3-s1*s2*s3;break;case'YXZ':this._x=s1*c2*c3+c1*s2*s3;this._y=c1*s2*c3-s1*c2*s3;this._z=c1*c2*s3-s1*s2*c3;this._w=c1*c2*c3+s1*s2*s3;break;case'ZXY':this._x=s1*c2*c3-c1*s2*s3;this._y=c1*s2*c3+s1*c2*s3;this._z=c1*c2*s3+s1*s2*c3;this._w=c1*c2*c3-s1*s2*s3;break;case'ZYX':this._x=s1*c2*c3-c1*s2*s3;this._y=c1*s2*c3+s1*c2*s3;this._z=c1*c2*s3-s1*s2*c3;this._w=c1*c2*c3+s1*s2*s3;break;case'YZX':this._x=s1*c2*c3+c1*s2*s3;this._y=c1*s2*c3+s1*c2*s3;this._z=c1*c2*s3-s1*s2*c3;this._w=c1*c2*c3-s1*s2*s3;break;case'XZY':this._x=s1*c2*c3-c1*s2*s3;this._y=c1*s2*c3-s1*c2*s3;this._z=c1*c2*s3+s1*s2*c3;this._w=c1*c2*c3+s1*s2*s3;break;default:console.warn('THREE.Quaternion: .setFromEuler() encountered an unknown order: '+order);}if(update!==false)this._onChangeCallback();return this;}setFromAxisAngle(axis,angle){// http://www.euclideanspace.com/maths/geometry/rotations/conversions/angleToQuaternion/index.htm
// assumes axis is normalized
var halfAngle=angle/2,s=Math.sin(halfAngle);this._x=axis.x*s;this._y=axis.y*s;this._z=axis.z*s;this._w=Math.cos(halfAngle);this._onChangeCallback();return this;}setFromRotationMatrix(m){// http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm
// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
var te=m.elements,m11=te[0],m12=te[4],m13=te[8],m21=te[1],m22=te[5],m23=te[9],m31=te[2],m32=te[6],m33=te[10],trace=m11+m22+m33;if(trace>0){var s=0.5/Math.sqrt(trace+1.0);this._w=0.25/s;this._x=(m32-m23)*s;this._y=(m13-m31)*s;this._z=(m21-m12)*s;}else if(m11>m22&&m11>m33){var _s=2.0*Math.sqrt(1.0+m11-m22-m33);this._w=(m32-m23)/_s;this._x=0.25*_s;this._y=(m12+m21)/_s;this._z=(m13+m31)/_s;}else if(m22>m33){var _s2=2.0*Math.sqrt(1.0+m22-m11-m33);this._w=(m13-m31)/_s2;this._x=(m12+m21)/_s2;this._y=0.25*_s2;this._z=(m23+m32)/_s2;}else {var _s3=2.0*Math.sqrt(1.0+m33-m11-m22);this._w=(m21-m12)/_s3;this._x=(m13+m31)/_s3;this._y=(m23+m32)/_s3;this._z=0.25*_s3;}this._onChangeCallback();return this;}setFromUnitVectors(vFrom,vTo){// assumes direction vectors vFrom and vTo are normalized
var EPS=0.000001;var r=vFrom.dot(vTo)+1;if(r<EPS){r=0;if(Math.abs(vFrom.x)>Math.abs(vFrom.z)){this._x=-vFrom.y;this._y=vFrom.x;this._z=0;this._w=r;}else {this._x=0;this._y=-vFrom.z;this._z=vFrom.y;this._w=r;}}else {// crossVectors( vFrom, vTo ); // inlined to avoid cyclic dependency on Vector3
this._x=vFrom.y*vTo.z-vFrom.z*vTo.y;this._y=vFrom.z*vTo.x-vFrom.x*vTo.z;this._z=vFrom.x*vTo.y-vFrom.y*vTo.x;this._w=r;}return this.normalize();}angleTo(q){return 2*Math.acos(Math.abs(MathUtils.clamp(this.dot(q),-1,1)));}rotateTowards(q,step){var angle=this.angleTo(q);if(angle===0)return this;var t=Math.min(1,step/angle);this.slerp(q,t);return this;}identity(){return this.set(0,0,0,1);}invert(){// quaternion is assumed to have unit length
return this.conjugate();}conjugate(){this._x*=-1;this._y*=-1;this._z*=-1;this._onChangeCallback();return this;}dot(v){return this._x*v._x+this._y*v._y+this._z*v._z+this._w*v._w;}lengthSq(){return this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w;}length(){return Math.sqrt(this._x*this._x+this._y*this._y+this._z*this._z+this._w*this._w);}normalize(){var l=this.length();if(l===0){this._x=0;this._y=0;this._z=0;this._w=1;}else {l=1/l;this._x=this._x*l;this._y=this._y*l;this._z=this._z*l;this._w=this._w*l;}this._onChangeCallback();return this;}multiply(q,p){if(p!==undefined){console.warn('THREE.Quaternion: .multiply() now only accepts one argument. Use .multiplyQuaternions( a, b ) instead.');return this.multiplyQuaternions(q,p);}return this.multiplyQuaternions(this,q);}premultiply(q){return this.multiplyQuaternions(q,this);}multiplyQuaternions(a,b){// from http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/code/index.htm
var qax=a._x,qay=a._y,qaz=a._z,qaw=a._w;var qbx=b._x,qby=b._y,qbz=b._z,qbw=b._w;this._x=qax*qbw+qaw*qbx+qay*qbz-qaz*qby;this._y=qay*qbw+qaw*qby+qaz*qbx-qax*qbz;this._z=qaz*qbw+qaw*qbz+qax*qby-qay*qbx;this._w=qaw*qbw-qax*qbx-qay*qby-qaz*qbz;this._onChangeCallback();return this;}slerp(qb,t){if(t===0)return this;if(t===1)return this.copy(qb);var x=this._x,y=this._y,z=this._z,w=this._w;// http://www.euclideanspace.com/maths/algebra/realNormedAlgebra/quaternions/slerp/
var cosHalfTheta=w*qb._w+x*qb._x+y*qb._y+z*qb._z;if(cosHalfTheta<0){this._w=-qb._w;this._x=-qb._x;this._y=-qb._y;this._z=-qb._z;cosHalfTheta=-cosHalfTheta;}else {this.copy(qb);}if(cosHalfTheta>=1.0){this._w=w;this._x=x;this._y=y;this._z=z;return this;}var sqrSinHalfTheta=1.0-cosHalfTheta*cosHalfTheta;if(sqrSinHalfTheta<=Number.EPSILON){var s=1-t;this._w=s*w+t*this._w;this._x=s*x+t*this._x;this._y=s*y+t*this._y;this._z=s*z+t*this._z;this.normalize();this._onChangeCallback();return this;}var sinHalfTheta=Math.sqrt(sqrSinHalfTheta);var halfTheta=Math.atan2(sinHalfTheta,cosHalfTheta);var ratioA=Math.sin((1-t)*halfTheta)/sinHalfTheta,ratioB=Math.sin(t*halfTheta)/sinHalfTheta;this._w=w*ratioA+this._w*ratioB;this._x=x*ratioA+this._x*ratioB;this._y=y*ratioA+this._y*ratioB;this._z=z*ratioA+this._z*ratioB;this._onChangeCallback();return this;}equals(quaternion){return quaternion._x===this._x&&quaternion._y===this._y&&quaternion._z===this._z&&quaternion._w===this._w;}fromArray(array){var offset=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;this._x=array[offset];this._y=array[offset+1];this._z=array[offset+2];this._w=array[offset+3];this._onChangeCallback();return this;}toArray(){var array=arguments.length>0&&arguments[0]!==undefined?arguments[0]:[];var offset=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;array[offset]=this._x;array[offset+1]=this._y;array[offset+2]=this._z;array[offset+3]=this._w;return array;}fromBufferAttribute(attribute,index){this._x=attribute.getX(index);this._y=attribute.getY(index);this._z=attribute.getZ(index);this._w=attribute.getW(index);return this;}_onChange(callback){this._onChangeCallback=callback;return this;}_onChangeCallback(){}}class Vector3{constructor(){var x=arguments.length>0&&arguments[0]!==undefined?arguments[0]:0;var y=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;var z=arguments.length>2&&arguments[2]!==undefined?arguments[2]:0;Object.defineProperty(this,'isVector3',{value:true});this.x=x;this.y=y;this.z=z;}set(x,y,z){if(z===undefined)z=this.z;// sprite.scale.set(x,y)
this.x=x;this.y=y;this.z=z;return this;}setScalar(scalar){this.x=scalar;this.y=scalar;this.z=scalar;return this;}setX(x){this.x=x;return this;}setY(y){this.y=y;return this;}setZ(z){this.z=z;return this;}setComponent(index,value){switch(index){case 0:this.x=value;break;case 1:this.y=value;break;case 2:this.z=value;break;default:throw new Error('index is out of range: '+index);}return this;}getComponent(index){switch(index){case 0:return this.x;case 1:return this.y;case 2:return this.z;default:throw new Error('index is out of range: '+index);}}clone(){return new this.constructor(this.x,this.y,this.z);}copy(v){this.x=v.x;this.y=v.y;this.z=v.z;return this;}add(v,w){if(w!==undefined){console.warn('THREE.Vector3: .add() now only accepts one argument. Use .addVectors( a, b ) instead.');return this.addVectors(v,w);}this.x+=v.x;this.y+=v.y;this.z+=v.z;return this;}addScalar(s){this.x+=s;this.y+=s;this.z+=s;return this;}addVectors(a,b){this.x=a.x+b.x;this.y=a.y+b.y;this.z=a.z+b.z;return this;}addScaledVector(v,s){this.x+=v.x*s;this.y+=v.y*s;this.z+=v.z*s;return this;}sub(v,w){if(w!==undefined){console.warn('THREE.Vector3: .sub() now only accepts one argument. Use .subVectors( a, b ) instead.');return this.subVectors(v,w);}this.x-=v.x;this.y-=v.y;this.z-=v.z;return this;}subScalar(s){this.x-=s;this.y-=s;this.z-=s;return this;}subVectors(a,b){this.x=a.x-b.x;this.y=a.y-b.y;this.z=a.z-b.z;return this;}multiply(v,w){if(w!==undefined){console.warn('THREE.Vector3: .multiply() now only accepts one argument. Use .multiplyVectors( a, b ) instead.');return this.multiplyVectors(v,w);}this.x*=v.x;this.y*=v.y;this.z*=v.z;return this;}multiplyScalar(scalar){this.x*=scalar;this.y*=scalar;this.z*=scalar;return this;}multiplyVectors(a,b){this.x=a.x*b.x;this.y=a.y*b.y;this.z=a.z*b.z;return this;}applyEuler(euler){if(!(euler&&euler.isEuler)){console.error('THREE.Vector3: .applyEuler() now expects an Euler rotation rather than a Vector3 and order.');}return this.applyQuaternion(_quaternion.setFromEuler(euler));}applyAxisAngle(axis,angle){return this.applyQuaternion(_quaternion.setFromAxisAngle(axis,angle));}applyMatrix3(m){var x=this.x,y=this.y,z=this.z;var e=m.elements;this.x=e[0]*x+e[3]*y+e[6]*z;this.y=e[1]*x+e[4]*y+e[7]*z;this.z=e[2]*x+e[5]*y+e[8]*z;return this;}applyNormalMatrix(m){return this.applyMatrix3(m).normalize();}applyMatrix4(m){var x=this.x,y=this.y,z=this.z;var e=m.elements;var w=1/(e[3]*x+e[7]*y+e[11]*z+e[15]);this.x=(e[0]*x+e[4]*y+e[8]*z+e[12])*w;this.y=(e[1]*x+e[5]*y+e[9]*z+e[13])*w;this.z=(e[2]*x+e[6]*y+e[10]*z+e[14])*w;return this;}applyQuaternion(q){var x=this.x,y=this.y,z=this.z;var qx=q.x,qy=q.y,qz=q.z,qw=q.w;// calculate quat * vector
var ix=qw*x+qy*z-qz*y;var iy=qw*y+qz*x-qx*z;var iz=qw*z+qx*y-qy*x;var iw=-qx*x-qy*y-qz*z;// calculate result * inverse quat
this.x=ix*qw+iw*-qx+iy*-qz-iz*-qy;this.y=iy*qw+iw*-qy+iz*-qx-ix*-qz;this.z=iz*qw+iw*-qz+ix*-qy-iy*-qx;return this;}project(camera){return this.applyMatrix4(camera.matrixWorldInverse).applyMatrix4(camera.projectionMatrix);}unproject(camera){return this.applyMatrix4(camera.projectionMatrixInverse).applyMatrix4(camera.matrixWorld);}transformDirection(m){// input: THREE.Matrix4 affine matrix
// vector interpreted as a direction
var x=this.x,y=this.y,z=this.z;var e=m.elements;this.x=e[0]*x+e[4]*y+e[8]*z;this.y=e[1]*x+e[5]*y+e[9]*z;this.z=e[2]*x+e[6]*y+e[10]*z;return this.normalize();}divide(v){this.x/=v.x;this.y/=v.y;this.z/=v.z;return this;}divideScalar(scalar){return this.multiplyScalar(1/scalar);}min(v){this.x=Math.min(this.x,v.x);this.y=Math.min(this.y,v.y);this.z=Math.min(this.z,v.z);return this;}max(v){this.x=Math.max(this.x,v.x);this.y=Math.max(this.y,v.y);this.z=Math.max(this.z,v.z);return this;}clamp(min,max){// assumes min < max, componentwise
this.x=Math.max(min.x,Math.min(max.x,this.x));this.y=Math.max(min.y,Math.min(max.y,this.y));this.z=Math.max(min.z,Math.min(max.z,this.z));return this;}clampScalar(minVal,maxVal){this.x=Math.max(minVal,Math.min(maxVal,this.x));this.y=Math.max(minVal,Math.min(maxVal,this.y));this.z=Math.max(minVal,Math.min(maxVal,this.z));return this;}clampLength(min,max){var length=this.length();return this.divideScalar(length||1).multiplyScalar(Math.max(min,Math.min(max,length)));}floor(){this.x=Math.floor(this.x);this.y=Math.floor(this.y);this.z=Math.floor(this.z);return this;}ceil(){this.x=Math.ceil(this.x);this.y=Math.ceil(this.y);this.z=Math.ceil(this.z);return this;}round(){this.x=Math.round(this.x);this.y=Math.round(this.y);this.z=Math.round(this.z);return this;}roundToZero(){this.x=this.x<0?Math.ceil(this.x):Math.floor(this.x);this.y=this.y<0?Math.ceil(this.y):Math.floor(this.y);this.z=this.z<0?Math.ceil(this.z):Math.floor(this.z);return this;}negate(){this.x=-this.x;this.y=-this.y;this.z=-this.z;return this;}dot(v){return this.x*v.x+this.y*v.y+this.z*v.z;}// TODO lengthSquared?
lengthSq(){return this.x*this.x+this.y*this.y+this.z*this.z;}length(){return Math.sqrt(this.x*this.x+this.y*this.y+this.z*this.z);}manhattanLength(){return Math.abs(this.x)+Math.abs(this.y)+Math.abs(this.z);}normalize(){return this.divideScalar(this.length()||1);}setLength(length){return this.normalize().multiplyScalar(length);}lerp(v,alpha){this.x+=(v.x-this.x)*alpha;this.y+=(v.y-this.y)*alpha;this.z+=(v.z-this.z)*alpha;return this;}lerpVectors(v1,v2,alpha){this.x=v1.x+(v2.x-v1.x)*alpha;this.y=v1.y+(v2.y-v1.y)*alpha;this.z=v1.z+(v2.z-v1.z)*alpha;return this;}cross(v,w){if(w!==undefined){console.warn('THREE.Vector3: .cross() now only accepts one argument. Use .crossVectors( a, b ) instead.');return this.crossVectors(v,w);}return this.crossVectors(this,v);}crossVectors(a,b){var ax=a.x,ay=a.y,az=a.z;var bx=b.x,by=b.y,bz=b.z;this.x=ay*bz-az*by;this.y=az*bx-ax*bz;this.z=ax*by-ay*bx;return this;}projectOnVector(v){var denominator=v.lengthSq();if(denominator===0)return this.set(0,0,0);var scalar=v.dot(this)/denominator;return this.copy(v).multiplyScalar(scalar);}projectOnPlane(planeNormal){_vector.copy(this).projectOnVector(planeNormal);return this.sub(_vector);}reflect(normal){// reflect incident vector off plane orthogonal to normal
// normal is assumed to have unit length
return this.sub(_vector.copy(normal).multiplyScalar(2*this.dot(normal)));}angleTo(v){var denominator=Math.sqrt(this.lengthSq()*v.lengthSq());if(denominator===0)return Math.PI/2;var theta=this.dot(v)/denominator;// clamp, to handle numerical problems
return Math.acos(MathUtils.clamp(theta,-1,1));}distanceTo(v){return Math.sqrt(this.distanceToSquared(v));}distanceToSquared(v){var dx=this.x-v.x,dy=this.y-v.y,dz=this.z-v.z;return dx*dx+dy*dy+dz*dz;}manhattanDistanceTo(v){return Math.abs(this.x-v.x)+Math.abs(this.y-v.y)+Math.abs(this.z-v.z);}setFromSpherical(s){return this.setFromSphericalCoords(s.radius,s.phi,s.theta);}setFromSphericalCoords(radius,phi,theta){var sinPhiRadius=Math.sin(phi)*radius;this.x=sinPhiRadius*Math.sin(theta);this.y=Math.cos(phi)*radius;this.z=sinPhiRadius*Math.cos(theta);return this;}setFromCylindrical(c){return this.setFromCylindricalCoords(c.radius,c.theta,c.y);}setFromCylindricalCoords(radius,theta,y){this.x=radius*Math.sin(theta);this.y=y;this.z=radius*Math.cos(theta);return this;}setFromMatrixPosition(m){var e=m.elements;this.x=e[12];this.y=e[13];this.z=e[14];return this;}setFromMatrixScale(m){var sx=this.setFromMatrixColumn(m,0).length();var sy=this.setFromMatrixColumn(m,1).length();var sz=this.setFromMatrixColumn(m,2).length();this.x=sx;this.y=sy;this.z=sz;return this;}setFromMatrixColumn(m,index){return this.fromArray(m.elements,index*4);}setFromMatrix3Column(m,index){return this.fromArray(m.elements,index*3);}equals(v){return v.x===this.x&&v.y===this.y&&v.z===this.z;}fromArray(array){var offset=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;this.x=array[offset];this.y=array[offset+1];this.z=array[offset+2];return this;}toArray(){var array=arguments.length>0&&arguments[0]!==undefined?arguments[0]:[];var offset=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;array[offset]=this.x;array[offset+1]=this.y;array[offset+2]=this.z;return array;}fromBufferAttribute(attribute,index,offset){if(offset!==undefined){console.warn('THREE.Vector3: offset has been removed from .fromBufferAttribute().');}this.x=attribute.getX(index);this.y=attribute.getY(index);this.z=attribute.getZ(index);return this;}random(){this.x=Math.random();this.y=Math.random();this.z=Math.random();return this;}}var _vector=/*@__PURE__*/new Vector3();var _quaternion=/*@__PURE__*/new Quaternion();class Box3{constructor(min,max){Object.defineProperty(this,'isBox3',{value:true});this.min=min!==undefined?min:new Vector3(+Infinity,+Infinity,+Infinity);this.max=max!==undefined?max:new Vector3(-Infinity,-Infinity,-Infinity);}set(min,max){this.min.copy(min);this.max.copy(max);return this;}setFromArray(array){var minX=+Infinity;var minY=+Infinity;var minZ=+Infinity;var maxX=-Infinity;var maxY=-Infinity;var maxZ=-Infinity;for(var _i4=0,l=array.length;_i4<l;_i4+=3){var x=array[_i4];var y=array[_i4+1];var z=array[_i4+2];if(x<minX)minX=x;if(y<minY)minY=y;if(z<minZ)minZ=z;if(x>maxX)maxX=x;if(y>maxY)maxY=y;if(z>maxZ)maxZ=z;}this.min.set(minX,minY,minZ);this.max.set(maxX,maxY,maxZ);return this;}setFromBufferAttribute(attribute){var minX=+Infinity;var minY=+Infinity;var minZ=+Infinity;var maxX=-Infinity;var maxY=-Infinity;var maxZ=-Infinity;for(var _i5=0,l=attribute.count;_i5<l;_i5++){var x=attribute.getX(_i5);var y=attribute.getY(_i5);var z=attribute.getZ(_i5);if(x<minX)minX=x;if(y<minY)minY=y;if(z<minZ)minZ=z;if(x>maxX)maxX=x;if(y>maxY)maxY=y;if(z>maxZ)maxZ=z;}this.min.set(minX,minY,minZ);this.max.set(maxX,maxY,maxZ);return this;}setFromPoints(points){this.makeEmpty();for(var _i6=0,il=points.length;_i6<il;_i6++){this.expandByPoint(points[_i6]);}return this;}setFromCenterAndSize(center,size){var halfSize=_vector$1.copy(size).multiplyScalar(0.5);this.min.copy(center).sub(halfSize);this.max.copy(center).add(halfSize);return this;}setFromObject(object){this.makeEmpty();return this.expandByObject(object);}clone(){return new this.constructor().copy(this);}copy(box){this.min.copy(box.min);this.max.copy(box.max);return this;}makeEmpty(){this.min.x=this.min.y=this.min.z=+Infinity;this.max.x=this.max.y=this.max.z=-Infinity;return this;}isEmpty(){// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes
return this.max.x<this.min.x||this.max.y<this.min.y||this.max.z<this.min.z;}getCenter(target){if(target===undefined){console.warn('THREE.Box3: .getCenter() target is now required');target=new Vector3();}return this.isEmpty()?target.set(0,0,0):target.addVectors(this.min,this.max).multiplyScalar(0.5);}getSize(target){if(target===undefined){console.warn('THREE.Box3: .getSize() target is now required');target=new Vector3();}return this.isEmpty()?target.set(0,0,0):target.subVectors(this.max,this.min);}expandByPoint(point){this.min.min(point);this.max.max(point);return this;}expandByVector(vector){this.min.sub(vector);this.max.add(vector);return this;}expandByScalar(scalar){this.min.addScalar(-scalar);this.max.addScalar(scalar);return this;}expandByObject(object){// Computes the world-axis-aligned bounding box of an object (including its children),
// accounting for both the object's, and children's, world transforms
object.updateWorldMatrix(false,false);var geometry=object.geometry;if(geometry!==undefined){if(geometry.boundingBox===null){geometry.computeBoundingBox();}_box.copy(geometry.boundingBox);_box.applyMatrix4(object.matrixWorld);this.union(_box);}var children=object.children;for(var _i7=0,l=children.length;_i7<l;_i7++){this.expandByObject(children[_i7]);}return this;}containsPoint(point){return point.x<this.min.x||point.x>this.max.x||point.y<this.min.y||point.y>this.max.y||point.z<this.min.z||point.z>this.max.z?false:true;}containsBox(box){return this.min.x<=box.min.x&&box.max.x<=this.max.x&&this.min.y<=box.min.y&&box.max.y<=this.max.y&&this.min.z<=box.min.z&&box.max.z<=this.max.z;}getParameter(point,target){// This can potentially have a divide by zero if the box
// has a size dimension of 0.
if(target===undefined){console.warn('THREE.Box3: .getParameter() target is now required');target=new Vector3();}return target.set((point.x-this.min.x)/(this.max.x-this.min.x),(point.y-this.min.y)/(this.max.y-this.min.y),(point.z-this.min.z)/(this.max.z-this.min.z));}intersectsBox(box){// using 6 splitting planes to rule out intersections.
return box.max.x<this.min.x||box.min.x>this.max.x||box.max.y<this.min.y||box.min.y>this.max.y||box.max.z<this.min.z||box.min.z>this.max.z?false:true;}intersectsSphere(sphere){// Find the point on the AABB closest to the sphere center.
this.clampPoint(sphere.center,_vector$1);// If that point is inside the sphere, the AABB and sphere intersect.
return _vector$1.distanceToSquared(sphere.center)<=sphere.radius*sphere.radius;}intersectsPlane(plane){// We compute the minimum and maximum dot product values. If those values
// are on the same side (back or front) of the plane, then there is no intersection.
var min,max;if(plane.normal.x>0){min=plane.normal.x*this.min.x;max=plane.normal.x*this.max.x;}else {min=plane.normal.x*this.max.x;max=plane.normal.x*this.min.x;}if(plane.normal.y>0){min+=plane.normal.y*this.min.y;max+=plane.normal.y*this.max.y;}else {min+=plane.normal.y*this.max.y;max+=plane.normal.y*this.min.y;}if(plane.normal.z>0){min+=plane.normal.z*this.min.z;max+=plane.normal.z*this.max.z;}else {min+=plane.normal.z*this.max.z;max+=plane.normal.z*this.min.z;}return min<=-plane.constant&&max>=-plane.constant;}intersectsTriangle(triangle){if(this.isEmpty()){return false;}// compute box center and extents
this.getCenter(_center);_extents.subVectors(this.max,_center);// translate triangle to aabb origin
_v0.subVectors(triangle.a,_center);_v1.subVectors(triangle.b,_center);_v2.subVectors(triangle.c,_center);// compute edge vectors for triangle
_f0.subVectors(_v1,_v0);_f1.subVectors(_v2,_v1);_f2.subVectors(_v0,_v2);// test against axes that are given by cross product combinations of the edges of the triangle and the edges of the aabb
// make an axis testing of each of the 3 sides of the aabb against each of the 3 sides of the triangle = 9 axis of separation
// axis_ij = u_i x f_j (u0, u1, u2 = face normals of aabb = x,y,z axes vectors since aabb is axis aligned)
var axes=[0,-_f0.z,_f0.y,0,-_f1.z,_f1.y,0,-_f2.z,_f2.y,_f0.z,0,-_f0.x,_f1.z,0,-_f1.x,_f2.z,0,-_f2.x,-_f0.y,_f0.x,0,-_f1.y,_f1.x,0,-_f2.y,_f2.x,0];if(!satForAxes(axes,_v0,_v1,_v2,_extents)){return false;}// test 3 face normals from the aabb
axes=[1,0,0,0,1,0,0,0,1];if(!satForAxes(axes,_v0,_v1,_v2,_extents)){return false;}// finally testing the face normal of the triangle
// use already existing triangle edge vectors here
_triangleNormal.crossVectors(_f0,_f1);axes=[_triangleNormal.x,_triangleNormal.y,_triangleNormal.z];return satForAxes(axes,_v0,_v1,_v2,_extents);}clampPoint(point,target){if(target===undefined){console.warn('THREE.Box3: .clampPoint() target is now required');target=new Vector3();}return target.copy(point).clamp(this.min,this.max);}distanceToPoint(point){var clampedPoint=_vector$1.copy(point).clamp(this.min,this.max);return clampedPoint.sub(point).length();}getBoundingSphere(target){if(target===undefined){console.error('THREE.Box3: .getBoundingSphere() target is now required');//target = new Sphere(); // removed to avoid cyclic dependency
}this.getCenter(target.center);target.radius=this.getSize(_vector$1).length()*0.5;return target;}intersect(box){this.min.max(box.min);this.max.min(box.max);// ensure that if there is no overlap, the result is fully empty, not slightly empty with non-inf/+inf values that will cause subsequence intersects to erroneously return valid values.
if(this.isEmpty())this.makeEmpty();return this;}union(box){this.min.min(box.min);this.max.max(box.max);return this;}applyMatrix4(matrix){// transform of empty box is an empty box.
if(this.isEmpty())return this;// NOTE: I am using a binary pattern to specify all 2^3 combinations below
_points[0].set(this.min.x,this.min.y,this.min.z).applyMatrix4(matrix);// 000
_points[1].set(this.min.x,this.min.y,this.max.z).applyMatrix4(matrix);// 001
_points[2].set(this.min.x,this.max.y,this.min.z).applyMatrix4(matrix);// 010
_points[3].set(this.min.x,this.max.y,this.max.z).applyMatrix4(matrix);// 011
_points[4].set(this.max.x,this.min.y,this.min.z).applyMatrix4(matrix);// 100
_points[5].set(this.max.x,this.min.y,this.max.z).applyMatrix4(matrix);// 101
_points[6].set(this.max.x,this.max.y,this.min.z).applyMatrix4(matrix);// 110
_points[7].set(this.max.x,this.max.y,this.max.z).applyMatrix4(matrix);// 111
this.setFromPoints(_points);return this;}translate(offset){this.min.add(offset);this.max.add(offset);return this;}equals(box){return box.min.equals(this.min)&&box.max.equals(this.max);}}function satForAxes(axes,v0,v1,v2,extents){for(var _i8=0,j=axes.length-3;_i8<=j;_i8+=3){_testAxis.fromArray(axes,_i8);// project the aabb onto the seperating axis
var r=extents.x*Math.abs(_testAxis.x)+extents.y*Math.abs(_testAxis.y)+extents.z*Math.abs(_testAxis.z);// project all 3 vertices of the triangle onto the seperating axis
var p0=v0.dot(_testAxis);var p1=v1.dot(_testAxis);var p2=v2.dot(_testAxis);// actual test, basically see if either of the most extreme of the triangle points intersects r
if(Math.max(-Math.max(p0,p1,p2),Math.min(p0,p1,p2))>r){// points of the projected triangle are outside the projected half-length of the aabb
// the axis is seperating and we can exit
return false;}}return true;}var _points=[/*@__PURE__*/new Vector3(),/*@__PURE__*/new Vector3(),/*@__PURE__*/new Vector3(),/*@__PURE__*/new Vector3(),/*@__PURE__*/new Vector3(),/*@__PURE__*/new Vector3(),/*@__PURE__*/new Vector3(),/*@__PURE__*/new Vector3()];var _vector$1=/*@__PURE__*/new Vector3();var _box=/*@__PURE__*/new Box3();// triangle centered vertices
var _v0=/*@__PURE__*/new Vector3();var _v1=/*@__PURE__*/new Vector3();var _v2=/*@__PURE__*/new Vector3();// triangle edge vectors
var _f0=/*@__PURE__*/new Vector3();var _f1=/*@__PURE__*/new Vector3();var _f2=/*@__PURE__*/new Vector3();var _center=/*@__PURE__*/new Vector3();var _extents=/*@__PURE__*/new Vector3();var _triangleNormal=/*@__PURE__*/new Vector3();var _testAxis=/*@__PURE__*/new Vector3();var _box$1=/*@__PURE__*/new Box3();class Sphere{constructor(center,radius){this.center=center!==undefined?center:new Vector3();this.radius=radius!==undefined?radius:-1;}set(center,radius){this.center.copy(center);this.radius=radius;return this;}setFromPoints(points,optionalCenter){var center=this.center;if(optionalCenter!==undefined){center.copy(optionalCenter);}else {_box$1.setFromPoints(points).getCenter(center);}var maxRadiusSq=0;for(var _i9=0,il=points.length;_i9<il;_i9++){maxRadiusSq=Math.max(maxRadiusSq,center.distanceToSquared(points[_i9]));}this.radius=Math.sqrt(maxRadiusSq);return this;}clone(){return new this.constructor().copy(this);}copy(sphere){this.center.copy(sphere.center);this.radius=sphere.radius;return this;}isEmpty(){return this.radius<0;}makeEmpty(){this.center.set(0,0,0);this.radius=-1;return this;}containsPoint(point){return point.distanceToSquared(this.center)<=this.radius*this.radius;}distanceToPoint(point){return point.distanceTo(this.center)-this.radius;}intersectsSphere(sphere){var radiusSum=this.radius+sphere.radius;return sphere.center.distanceToSquared(this.center)<=radiusSum*radiusSum;}intersectsBox(box){return box.intersectsSphere(this);}intersectsPlane(plane){return Math.abs(plane.distanceToPoint(this.center))<=this.radius;}clampPoint(point,target){var deltaLengthSq=this.center.distanceToSquared(point);if(target===undefined){console.warn('THREE.Sphere: .clampPoint() target is now required');target=new Vector3();}target.copy(point);if(deltaLengthSq>this.radius*this.radius){target.sub(this.center).normalize();target.multiplyScalar(this.radius).add(this.center);}return target;}getBoundingBox(target){if(target===undefined){console.warn('THREE.Sphere: .getBoundingBox() target is now required');target=new Box3();}if(this.isEmpty()){// Empty sphere produces empty bounding box
target.makeEmpty();return target;}target.set(this.center,this.center);target.expandByScalar(this.radius);return target;}applyMatrix4(matrix){this.center.applyMatrix4(matrix);this.radius=this.radius*matrix.getMaxScaleOnAxis();return this;}translate(offset){this.center.add(offset);return this;}equals(sphere){return sphere.center.equals(this.center)&&sphere.radius===this.radius;}}var _vector$2=/*@__PURE__*/new Vector3();var _segCenter=/*@__PURE__*/new Vector3();var _segDir=/*@__PURE__*/new Vector3();var _diff=/*@__PURE__*/new Vector3();var _edge1=/*@__PURE__*/new Vector3();var _edge2=/*@__PURE__*/new Vector3();var _normal=/*@__PURE__*/new Vector3();class Ray{constructor(origin,direction){this.origin=origin!==undefined?origin:new Vector3();this.direction=direction!==undefined?direction:new Vector3(0,0,-1);}set(origin,direction){this.origin.copy(origin);this.direction.copy(direction);return this;}clone(){return new this.constructor().copy(this);}copy(ray){this.origin.copy(ray.origin);this.direction.copy(ray.direction);return this;}at(t,target){if(target===undefined){console.warn('THREE.Ray: .at() target is now required');target=new Vector3();}return target.copy(this.direction).multiplyScalar(t).add(this.origin);}lookAt(v){this.direction.copy(v).sub(this.origin).normalize();return this;}recast(t){this.origin.copy(this.at(t,_vector$2));return this;}closestPointToPoint(point,target){if(target===undefined){console.warn('THREE.Ray: .closestPointToPoint() target is now required');target=new Vector3();}target.subVectors(point,this.origin);var directionDistance=target.dot(this.direction);if(directionDistance<0){return target.copy(this.origin);}return target.copy(this.direction).multiplyScalar(directionDistance).add(this.origin);}distanceToPoint(point){return Math.sqrt(this.distanceSqToPoint(point));}distanceSqToPoint(point){var directionDistance=_vector$2.subVectors(point,this.origin).dot(this.direction);// point behind the ray
if(directionDistance<0){return this.origin.distanceToSquared(point);}_vector$2.copy(this.direction).multiplyScalar(directionDistance).add(this.origin);return _vector$2.distanceToSquared(point);}distanceSqToSegment(v0,v1,optionalPointOnRay,optionalPointOnSegment){// from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteDistRaySegment.h
// It returns the min distance between the ray and the segment
// defined by v0 and v1
// It can also set two optional targets :
// - The closest point on the ray
// - The closest point on the segment
_segCenter.copy(v0).add(v1).multiplyScalar(0.5);_segDir.copy(v1).sub(v0).normalize();_diff.copy(this.origin).sub(_segCenter);var segExtent=v0.distanceTo(v1)*0.5;var a01=-this.direction.dot(_segDir);var b0=_diff.dot(this.direction);var b1=-_diff.dot(_segDir);var c=_diff.lengthSq();var det=Math.abs(1-a01*a01);var s0,s1,sqrDist,extDet;if(det>0){// The ray and segment are not parallel.
s0=a01*b1-b0;s1=a01*b0-b1;extDet=segExtent*det;if(s0>=0){if(s1>=-extDet){if(s1<=extDet){// region 0
// Minimum at interior points of ray and segment.
var invDet=1/det;s0*=invDet;s1*=invDet;sqrDist=s0*(s0+a01*s1+2*b0)+s1*(a01*s0+s1+2*b1)+c;}else {// region 1
s1=segExtent;s0=Math.max(0,-(a01*s1+b0));sqrDist=-s0*s0+s1*(s1+2*b1)+c;}}else {// region 5
s1=-segExtent;s0=Math.max(0,-(a01*s1+b0));sqrDist=-s0*s0+s1*(s1+2*b1)+c;}}else {if(s1<=-extDet){// region 4
s0=Math.max(0,-(-a01*segExtent+b0));s1=s0>0?-segExtent:Math.min(Math.max(-segExtent,-b1),segExtent);sqrDist=-s0*s0+s1*(s1+2*b1)+c;}else if(s1<=extDet){// region 3
s0=0;s1=Math.min(Math.max(-segExtent,-b1),segExtent);sqrDist=s1*(s1+2*b1)+c;}else {// region 2
s0=Math.max(0,-(a01*segExtent+b0));s1=s0>0?segExtent:Math.min(Math.max(-segExtent,-b1),segExtent);sqrDist=-s0*s0+s1*(s1+2*b1)+c;}}}else {// Ray and segment are parallel.
s1=a01>0?-segExtent:segExtent;s0=Math.max(0,-(a01*s1+b0));sqrDist=-s0*s0+s1*(s1+2*b1)+c;}if(optionalPointOnRay){optionalPointOnRay.copy(this.direction).multiplyScalar(s0).add(this.origin);}if(optionalPointOnSegment){optionalPointOnSegment.copy(_segDir).multiplyScalar(s1).add(_segCenter);}return sqrDist;}intersectSphere(sphere,target){_vector$2.subVectors(sphere.center,this.origin);var tca=_vector$2.dot(this.direction);var d2=_vector$2.dot(_vector$2)-tca*tca;var radius2=sphere.radius*sphere.radius;if(d2>radius2)return null;var thc=Math.sqrt(radius2-d2);// t0 = first intersect point - entrance on front of sphere
var t0=tca-thc;// t1 = second intersect point - exit point on back of sphere
var t1=tca+thc;// test to see if both t0 and t1 are behind the ray - if so, return null
if(t0<0&&t1<0)return null;// test to see if t0 is behind the ray:
// if it is, the ray is inside the sphere, so return the second exit point scaled by t1,
// in order to always return an intersect point that is in front of the ray.
if(t0<0)return this.at(t1,target);// else t0 is in front of the ray, so return the first collision point scaled by t0
return this.at(t0,target);}intersectsSphere(sphere){return this.distanceSqToPoint(sphere.center)<=sphere.radius*sphere.radius;}distanceToPlane(plane){var denominator=plane.normal.dot(this.direction);if(denominator===0){// line is coplanar, return origin
if(plane.distanceToPoint(this.origin)===0){return 0;}// Null is preferable to undefined since undefined means.... it is undefined
return null;}var t=-(this.origin.dot(plane.normal)+plane.constant)/denominator;// Return if the ray never intersects the plane
return t>=0?t:null;}intersectPlane(plane,target){var t=this.distanceToPlane(plane);if(t===null){return null;}return this.at(t,target);}intersectsPlane(plane){// check if the ray lies on the plane first
var distToPoint=plane.distanceToPoint(this.origin);if(distToPoint===0){return true;}var denominator=plane.normal.dot(this.direction);if(denominator*distToPoint<0){return true;}// ray origin is behind the plane (and is pointing behind it)
return false;}intersectBox(box,target){var tmin,tmax,tymin,tymax,tzmin,tzmax;var invdirx=1/this.direction.x,invdiry=1/this.direction.y,invdirz=1/this.direction.z;var origin=this.origin;if(invdirx>=0){tmin=(box.min.x-origin.x)*invdirx;tmax=(box.max.x-origin.x)*invdirx;}else {tmin=(box.max.x-origin.x)*invdirx;tmax=(box.min.x-origin.x)*invdirx;}if(invdiry>=0){tymin=(box.min.y-origin.y)*invdiry;tymax=(box.max.y-origin.y)*invdiry;}else {tymin=(box.max.y-origin.y)*invdiry;tymax=(box.min.y-origin.y)*invdiry;}if(tmin>tymax||tymin>tmax)return null;// These lines also handle the case where tmin or tmax is NaN
// (result of 0 * Infinity). x !== x returns true if x is NaN
if(tymin>tmin||tmin!==tmin)tmin=tymin;if(tymax<tmax||tmax!==tmax)tmax=tymax;if(invdirz>=0){tzmin=(box.min.z-origin.z)*invdirz;tzmax=(box.max.z-origin.z)*invdirz;}else {tzmin=(box.max.z-origin.z)*invdirz;tzmax=(box.min.z-origin.z)*invdirz;}if(tmin>tzmax||tzmin>tmax)return null;if(tzmin>tmin||tmin!==tmin)tmin=tzmin;if(tzmax<tmax||tmax!==tmax)tmax=tzmax;//return point closest to the ray (positive side)
if(tmax<0)return null;return this.at(tmin>=0?tmin:tmax,target);}intersectsBox(box){return this.intersectBox(box,_vector$2)!==null;}intersectTriangle(a,b,c,backfaceCulling,target){// Compute the offset origin, edges, and normal.
// from http://www.geometrictools.com/GTEngine/Include/Mathematics/GteIntrRay3Triangle3.h
_edge1.subVectors(b,a);_edge2.subVectors(c,a);_normal.crossVectors(_edge1,_edge2);// Solve Q + t*D = b1*E1 + b2*E2 (Q = kDiff, D = ray direction,
// E1 = kEdge1, E2 = kEdge2, N = Cross(E1,E2)) by
//   |Dot(D,N)|*b1 = sign(Dot(D,N))*Dot(D,Cross(Q,E2))
//   |Dot(D,N)|*b2 = sign(Dot(D,N))*Dot(D,Cross(E1,Q))
//   |Dot(D,N)|*t = -sign(Dot(D,N))*Dot(Q,N)
var DdN=this.direction.dot(_normal);var sign;if(DdN>0){if(backfaceCulling)return null;sign=1;}else if(DdN<0){sign=-1;DdN=-DdN;}else {return null;}_diff.subVectors(this.origin,a);var DdQxE2=sign*this.direction.dot(_edge2.crossVectors(_diff,_edge2));// b1 < 0, no intersection
if(DdQxE2<0){return null;}var DdE1xQ=sign*this.direction.dot(_edge1.cross(_diff));// b2 < 0, no intersection
if(DdE1xQ<0){return null;}// b1+b2 > 1, no intersection
if(DdQxE2+DdE1xQ>DdN){return null;}// Line intersects triangle, check if ray does.
var QdN=-sign*_diff.dot(_normal);// t < 0, no intersection
if(QdN<0){return null;}// Ray intersects triangle.
return this.at(QdN/DdN,target);}applyMatrix4(matrix4){this.origin.applyMatrix4(matrix4);this.direction.transformDirection(matrix4);return this;}equals(ray){return ray.origin.equals(this.origin)&&ray.direction.equals(this.direction);}}class Matrix4{constructor(){Object.defineProperty(this,'isMatrix4',{value:true});this.elements=[1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1];if(arguments.length>0){console.error('THREE.Matrix4: the constructor no longer reads arguments. use .set() instead.');}}set(n11,n12,n13,n14,n21,n22,n23,n24,n31,n32,n33,n34,n41,n42,n43,n44){var te=this.elements;te[0]=n11;te[4]=n12;te[8]=n13;te[12]=n14;te[1]=n21;te[5]=n22;te[9]=n23;te[13]=n24;te[2]=n31;te[6]=n32;te[10]=n33;te[14]=n34;te[3]=n41;te[7]=n42;te[11]=n43;te[15]=n44;return this;}identity(){this.set(1,0,0,0,0,1,0,0,0,0,1,0,0,0,0,1);return this;}clone(){return new Matrix4().fromArray(this.elements);}copy(m){var te=this.elements;var me=m.elements;te[0]=me[0];te[1]=me[1];te[2]=me[2];te[3]=me[3];te[4]=me[4];te[5]=me[5];te[6]=me[6];te[7]=me[7];te[8]=me[8];te[9]=me[9];te[10]=me[10];te[11]=me[11];te[12]=me[12];te[13]=me[13];te[14]=me[14];te[15]=me[15];return this;}copyPosition(m){var te=this.elements,me=m.elements;te[12]=me[12];te[13]=me[13];te[14]=me[14];return this;}extractBasis(xAxis,yAxis,zAxis){xAxis.setFromMatrixColumn(this,0);yAxis.setFromMatrixColumn(this,1);zAxis.setFromMatrixColumn(this,2);return this;}makeBasis(xAxis,yAxis,zAxis){this.set(xAxis.x,yAxis.x,zAxis.x,0,xAxis.y,yAxis.y,zAxis.y,0,xAxis.z,yAxis.z,zAxis.z,0,0,0,0,1);return this;}extractRotation(m){// this method does not support reflection matrices
var te=this.elements;var me=m.elements;var scaleX=1/_v1$1.setFromMatrixColumn(m,0).length();var scaleY=1/_v1$1.setFromMatrixColumn(m,1).length();var scaleZ=1/_v1$1.setFromMatrixColumn(m,2).length();te[0]=me[0]*scaleX;te[1]=me[1]*scaleX;te[2]=me[2]*scaleX;te[3]=0;te[4]=me[4]*scaleY;te[5]=me[5]*scaleY;te[6]=me[6]*scaleY;te[7]=0;te[8]=me[8]*scaleZ;te[9]=me[9]*scaleZ;te[10]=me[10]*scaleZ;te[11]=0;te[12]=0;te[13]=0;te[14]=0;te[15]=1;return this;}makeRotationFromEuler(euler){if(!(euler&&euler.isEuler)){console.error('THREE.Matrix4: .makeRotationFromEuler() now expects a Euler rotation rather than a Vector3 and order.');}var te=this.elements;var x=euler.x,y=euler.y,z=euler.z;var a=Math.cos(x),b=Math.sin(x);var c=Math.cos(y),d=Math.sin(y);var e=Math.cos(z),f=Math.sin(z);if(euler.order==='XYZ'){var ae=a*e,af=a*f,be=b*e,bf=b*f;te[0]=c*e;te[4]=-c*f;te[8]=d;te[1]=af+be*d;te[5]=ae-bf*d;te[9]=-b*c;te[2]=bf-ae*d;te[6]=be+af*d;te[10]=a*c;}else if(euler.order==='YXZ'){var ce=c*e,cf=c*f,de=d*e,df=d*f;te[0]=ce+df*b;te[4]=de*b-cf;te[8]=a*d;te[1]=a*f;te[5]=a*e;te[9]=-b;te[2]=cf*b-de;te[6]=df+ce*b;te[10]=a*c;}else if(euler.order==='ZXY'){var _ce=c*e,_cf=c*f,_de=d*e,_df=d*f;te[0]=_ce-_df*b;te[4]=-a*f;te[8]=_de+_cf*b;te[1]=_cf+_de*b;te[5]=a*e;te[9]=_df-_ce*b;te[2]=-a*d;te[6]=b;te[10]=a*c;}else if(euler.order==='ZYX'){var _ae=a*e,_af=a*f,_be=b*e,_bf=b*f;te[0]=c*e;te[4]=_be*d-_af;te[8]=_ae*d+_bf;te[1]=c*f;te[5]=_bf*d+_ae;te[9]=_af*d-_be;te[2]=-d;te[6]=b*c;te[10]=a*c;}else if(euler.order==='YZX'){var ac=a*c,ad=a*d,bc=b*c,bd=b*d;te[0]=c*e;te[4]=bd-ac*f;te[8]=bc*f+ad;te[1]=f;te[5]=a*e;te[9]=-b*e;te[2]=-d*e;te[6]=ad*f+bc;te[10]=ac-bd*f;}else if(euler.order==='XZY'){var _ac=a*c,_ad=a*d,_bc=b*c,_bd=b*d;te[0]=c*e;te[4]=-f;te[8]=d*e;te[1]=_ac*f+_bd;te[5]=a*e;te[9]=_ad*f-_bc;te[2]=_bc*f-_ad;te[6]=b*e;te[10]=_bd*f+_ac;}// bottom row
te[3]=0;te[7]=0;te[11]=0;// last column
te[12]=0;te[13]=0;te[14]=0;te[15]=1;return this;}makeRotationFromQuaternion(q){return this.compose(_zero,q,_one);}lookAt(eye,target,up){var te=this.elements;_z.subVectors(eye,target);if(_z.lengthSq()===0){// eye and target are in the same position
_z.z=1;}_z.normalize();_x.crossVectors(up,_z);if(_x.lengthSq()===0){// up and z are parallel
if(Math.abs(up.z)===1){_z.x+=0.0001;}else {_z.z+=0.0001;}_z.normalize();_x.crossVectors(up,_z);}_x.normalize();_y.crossVectors(_z,_x);te[0]=_x.x;te[4]=_y.x;te[8]=_z.x;te[1]=_x.y;te[5]=_y.y;te[9]=_z.y;te[2]=_x.z;te[6]=_y.z;te[10]=_z.z;return this;}multiply(m,n){if(n!==undefined){console.warn('THREE.Matrix4: .multiply() now only accepts one argument. Use .multiplyMatrices( a, b ) instead.');return this.multiplyMatrices(m,n);}return this.multiplyMatrices(this,m);}premultiply(m){return this.multiplyMatrices(m,this);}multiplyMatrices(a,b){var ae=a.elements;var be=b.elements;var te=this.elements;var a11=ae[0],a12=ae[4],a13=ae[8],a14=ae[12];var a21=ae[1],a22=ae[5],a23=ae[9],a24=ae[13];var a31=ae[2],a32=ae[6],a33=ae[10],a34=ae[14];var a41=ae[3],a42=ae[7],a43=ae[11],a44=ae[15];var b11=be[0],b12=be[4],b13=be[8],b14=be[12];var b21=be[1],b22=be[5],b23=be[9],b24=be[13];var b31=be[2],b32=be[6],b33=be[10],b34=be[14];var b41=be[3],b42=be[7],b43=be[11],b44=be[15];te[0]=a11*b11+a12*b21+a13*b31+a14*b41;te[4]=a11*b12+a12*b22+a13*b32+a14*b42;te[8]=a11*b13+a12*b23+a13*b33+a14*b43;te[12]=a11*b14+a12*b24+a13*b34+a14*b44;te[1]=a21*b11+a22*b21+a23*b31+a24*b41;te[5]=a21*b12+a22*b22+a23*b32+a24*b42;te[9]=a21*b13+a22*b23+a23*b33+a24*b43;te[13]=a21*b14+a22*b24+a23*b34+a24*b44;te[2]=a31*b11+a32*b21+a33*b31+a34*b41;te[6]=a31*b12+a32*b22+a33*b32+a34*b42;te[10]=a31*b13+a32*b23+a33*b33+a34*b43;te[14]=a31*b14+a32*b24+a33*b34+a34*b44;te[3]=a41*b11+a42*b21+a43*b31+a44*b41;te[7]=a41*b12+a42*b22+a43*b32+a44*b42;te[11]=a41*b13+a42*b23+a43*b33+a44*b43;te[15]=a41*b14+a42*b24+a43*b34+a44*b44;return this;}multiplyScalar(s){var te=this.elements;te[0]*=s;te[4]*=s;te[8]*=s;te[12]*=s;te[1]*=s;te[5]*=s;te[9]*=s;te[13]*=s;te[2]*=s;te[6]*=s;te[10]*=s;te[14]*=s;te[3]*=s;te[7]*=s;te[11]*=s;te[15]*=s;return this;}determinant(){var te=this.elements;var n11=te[0],n12=te[4],n13=te[8],n14=te[12];var n21=te[1],n22=te[5],n23=te[9],n24=te[13];var n31=te[2],n32=te[6],n33=te[10],n34=te[14];var n41=te[3],n42=te[7],n43=te[11],n44=te[15];//TODO: make this more efficient
//( based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm )
return n41*(+n14*n23*n32-n13*n24*n32-n14*n22*n33+n12*n24*n33+n13*n22*n34-n12*n23*n34)+n42*(+n11*n23*n34-n11*n24*n33+n14*n21*n33-n13*n21*n34+n13*n24*n31-n14*n23*n31)+n43*(+n11*n24*n32-n11*n22*n34-n14*n21*n32+n12*n21*n34+n14*n22*n31-n12*n24*n31)+n44*(-n13*n22*n31-n11*n23*n32+n11*n22*n33+n13*n21*n32-n12*n21*n33+n12*n23*n31);}transpose(){var te=this.elements;var tmp;tmp=te[1];te[1]=te[4];te[4]=tmp;tmp=te[2];te[2]=te[8];te[8]=tmp;tmp=te[6];te[6]=te[9];te[9]=tmp;tmp=te[3];te[3]=te[12];te[12]=tmp;tmp=te[7];te[7]=te[13];te[13]=tmp;tmp=te[11];te[11]=te[14];te[14]=tmp;return this;}setPosition(x,y,z){var te=this.elements;if(x.isVector3){te[12]=x.x;te[13]=x.y;te[14]=x.z;}else {te[12]=x;te[13]=y;te[14]=z;}return this;}invert(){// based on http://www.euclideanspace.com/maths/algebra/matrix/functions/inverse/fourD/index.htm
var te=this.elements,n11=te[0],n21=te[1],n31=te[2],n41=te[3],n12=te[4],n22=te[5],n32=te[6],n42=te[7],n13=te[8],n23=te[9],n33=te[10],n43=te[11],n14=te[12],n24=te[13],n34=te[14],n44=te[15],t11=n23*n34*n42-n24*n33*n42+n24*n32*n43-n22*n34*n43-n23*n32*n44+n22*n33*n44,t12=n14*n33*n42-n13*n34*n42-n14*n32*n43+n12*n34*n43+n13*n32*n44-n12*n33*n44,t13=n13*n24*n42-n14*n23*n42+n14*n22*n43-n12*n24*n43-n13*n22*n44+n12*n23*n44,t14=n14*n23*n32-n13*n24*n32-n14*n22*n33+n12*n24*n33+n13*n22*n34-n12*n23*n34;var det=n11*t11+n21*t12+n31*t13+n41*t14;if(det===0)return this.set(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0);var detInv=1/det;te[0]=t11*detInv;te[1]=(n24*n33*n41-n23*n34*n41-n24*n31*n43+n21*n34*n43+n23*n31*n44-n21*n33*n44)*detInv;te[2]=(n22*n34*n41-n24*n32*n41+n24*n31*n42-n21*n34*n42-n22*n31*n44+n21*n32*n44)*detInv;te[3]=(n23*n32*n41-n22*n33*n41-n23*n31*n42+n21*n33*n42+n22*n31*n43-n21*n32*n43)*detInv;te[4]=t12*detInv;te[5]=(n13*n34*n41-n14*n33*n41+n14*n31*n43-n11*n34*n43-n13*n31*n44+n11*n33*n44)*detInv;te[6]=(n14*n32*n41-n12*n34*n41-n14*n31*n42+n11*n34*n42+n12*n31*n44-n11*n32*n44)*detInv;te[7]=(n12*n33*n41-n13*n32*n41+n13*n31*n42-n11*n33*n42-n12*n31*n43+n11*n32*n43)*detInv;te[8]=t13*detInv;te[9]=(n14*n23*n41-n13*n24*n41-n14*n21*n43+n11*n24*n43+n13*n21*n44-n11*n23*n44)*detInv;te[10]=(n12*n24*n41-n14*n22*n41+n14*n21*n42-n11*n24*n42-n12*n21*n44+n11*n22*n44)*detInv;te[11]=(n13*n22*n41-n12*n23*n41-n13*n21*n42+n11*n23*n42+n12*n21*n43-n11*n22*n43)*detInv;te[12]=t14*detInv;te[13]=(n13*n24*n31-n14*n23*n31+n14*n21*n33-n11*n24*n33-n13*n21*n34+n11*n23*n34)*detInv;te[14]=(n14*n22*n31-n12*n24*n31-n14*n21*n32+n11*n24*n32+n12*n21*n34-n11*n22*n34)*detInv;te[15]=(n12*n23*n31-n13*n22*n31+n13*n21*n32-n11*n23*n32-n12*n21*n33+n11*n22*n33)*detInv;return this;}scale(v){var te=this.elements;var x=v.x,y=v.y,z=v.z;te[0]*=x;te[4]*=y;te[8]*=z;te[1]*=x;te[5]*=y;te[9]*=z;te[2]*=x;te[6]*=y;te[10]*=z;te[3]*=x;te[7]*=y;te[11]*=z;return this;}getMaxScaleOnAxis(){var te=this.elements;var scaleXSq=te[0]*te[0]+te[1]*te[1]+te[2]*te[2];var scaleYSq=te[4]*te[4]+te[5]*te[5]+te[6]*te[6];var scaleZSq=te[8]*te[8]+te[9]*te[9]+te[10]*te[10];return Math.sqrt(Math.max(scaleXSq,scaleYSq,scaleZSq));}makeTranslation(x,y,z){this.set(1,0,0,x,0,1,0,y,0,0,1,z,0,0,0,1);return this;}makeRotationX(theta){var c=Math.cos(theta),s=Math.sin(theta);this.set(1,0,0,0,0,c,-s,0,0,s,c,0,0,0,0,1);return this;}makeRotationY(theta){var c=Math.cos(theta),s=Math.sin(theta);this.set(c,0,s,0,0,1,0,0,-s,0,c,0,0,0,0,1);return this;}makeRotationZ(theta){var c=Math.cos(theta),s=Math.sin(theta);this.set(c,-s,0,0,s,c,0,0,0,0,1,0,0,0,0,1);return this;}makeRotationAxis(axis,angle){// Based on http://www.gamedev.net/reference/articles/article1199.asp
var c=Math.cos(angle);var s=Math.sin(angle);var t=1-c;var x=axis.x,y=axis.y,z=axis.z;var tx=t*x,ty=t*y;this.set(tx*x+c,tx*y-s*z,tx*z+s*y,0,tx*y+s*z,ty*y+c,ty*z-s*x,0,tx*z-s*y,ty*z+s*x,t*z*z+c,0,0,0,0,1);return this;}makeScale(x,y,z){this.set(x,0,0,0,0,y,0,0,0,0,z,0,0,0,0,1);return this;}makeShear(x,y,z){this.set(1,y,z,0,x,1,z,0,x,y,1,0,0,0,0,1);return this;}compose(position,quaternion,scale){var te=this.elements;var x=quaternion._x,y=quaternion._y,z=quaternion._z,w=quaternion._w;var x2=x+x,y2=y+y,z2=z+z;var xx=x*x2,xy=x*y2,xz=x*z2;var yy=y*y2,yz=y*z2,zz=z*z2;var wx=w*x2,wy=w*y2,wz=w*z2;var sx=scale.x,sy=scale.y,sz=scale.z;te[0]=(1-(yy+zz))*sx;te[1]=(xy+wz)*sx;te[2]=(xz-wy)*sx;te[3]=0;te[4]=(xy-wz)*sy;te[5]=(1-(xx+zz))*sy;te[6]=(yz+wx)*sy;te[7]=0;te[8]=(xz+wy)*sz;te[9]=(yz-wx)*sz;te[10]=(1-(xx+yy))*sz;te[11]=0;te[12]=position.x;te[13]=position.y;te[14]=position.z;te[15]=1;return this;}decompose(position,quaternion,scale){var te=this.elements;var sx=_v1$1.set(te[0],te[1],te[2]).length();var sy=_v1$1.set(te[4],te[5],te[6]).length();var sz=_v1$1.set(te[8],te[9],te[10]).length();// if determine is negative, we need to invert one scale
var det=this.determinant();if(det<0)sx=-sx;position.x=te[12];position.y=te[13];position.z=te[14];// scale the rotation part
_m1.copy(this);var invSX=1/sx;var invSY=1/sy;var invSZ=1/sz;_m1.elements[0]*=invSX;_m1.elements[1]*=invSX;_m1.elements[2]*=invSX;_m1.elements[4]*=invSY;_m1.elements[5]*=invSY;_m1.elements[6]*=invSY;_m1.elements[8]*=invSZ;_m1.elements[9]*=invSZ;_m1.elements[10]*=invSZ;quaternion.setFromRotationMatrix(_m1);scale.x=sx;scale.y=sy;scale.z=sz;return this;}makePerspective(left,right,top,bottom,near,far){if(far===undefined){console.warn('THREE.Matrix4: .makePerspective() has been redefined and has a new signature. Please check the docs.');}var te=this.elements;var x=2*near/(right-left);var y=2*near/(top-bottom);var a=(right+left)/(right-left);var b=(top+bottom)/(top-bottom);var c=-(far+near)/(far-near);var d=-2*far*near/(far-near);te[0]=x;te[4]=0;te[8]=a;te[12]=0;te[1]=0;te[5]=y;te[9]=b;te[13]=0;te[2]=0;te[6]=0;te[10]=c;te[14]=d;te[3]=0;te[7]=0;te[11]=-1;te[15]=0;return this;}makeOrthographic(left,right,top,bottom,near,far){var te=this.elements;var w=1.0/(right-left);var h=1.0/(top-bottom);var p=1.0/(far-near);var x=(right+left)*w;var y=(top+bottom)*h;var z=(far+near)*p;te[0]=2*w;te[4]=0;te[8]=0;te[12]=-x;te[1]=0;te[5]=2*h;te[9]=0;te[13]=-y;te[2]=0;te[6]=0;te[10]=-2*p;te[14]=-z;te[3]=0;te[7]=0;te[11]=0;te[15]=1;return this;}equals(matrix){var te=this.elements;var me=matrix.elements;for(var _i10=0;_i10<16;_i10++){if(te[_i10]!==me[_i10])return false;}return true;}fromArray(array){var offset=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;for(var _i11=0;_i11<16;_i11++){this.elements[_i11]=array[_i11+offset];}return this;}toArray(){var array=arguments.length>0&&arguments[0]!==undefined?arguments[0]:[];var offset=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;var te=this.elements;array[offset]=te[0];array[offset+1]=te[1];array[offset+2]=te[2];array[offset+3]=te[3];array[offset+4]=te[4];array[offset+5]=te[5];array[offset+6]=te[6];array[offset+7]=te[7];array[offset+8]=te[8];array[offset+9]=te[9];array[offset+10]=te[10];array[offset+11]=te[11];array[offset+12]=te[12];array[offset+13]=te[13];array[offset+14]=te[14];array[offset+15]=te[15];return array;}}var _v1$1=/*@__PURE__*/new Vector3();var _m1=/*@__PURE__*/new Matrix4();var _zero=/*@__PURE__*/new Vector3(0,0,0);var _one=/*@__PURE__*/new Vector3(1,1,1);var _x=/*@__PURE__*/new Vector3();var _y=/*@__PURE__*/new Vector3();var _z=/*@__PURE__*/new Vector3();class Euler{constructor(){var x=arguments.length>0&&arguments[0]!==undefined?arguments[0]:0;var y=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;var z=arguments.length>2&&arguments[2]!==undefined?arguments[2]:0;var order=arguments.length>3&&arguments[3]!==undefined?arguments[3]:Euler.DefaultOrder;Object.defineProperty(this,'isEuler',{value:true});this._x=x;this._y=y;this._z=z;this._order=order;}get x(){return this._x;}set x(value){this._x=value;this._onChangeCallback();}get y(){return this._y;}set y(value){this._y=value;this._onChangeCallback();}get z(){return this._z;}set z(value){this._z=value;this._onChangeCallback();}get order(){return this._order;}set order(value){this._order=value;this._onChangeCallback();}set(x,y,z,order){this._x=x;this._y=y;this._z=z;this._order=order||this._order;this._onChangeCallback();return this;}clone(){return new this.constructor(this._x,this._y,this._z,this._order);}copy(euler){this._x=euler._x;this._y=euler._y;this._z=euler._z;this._order=euler._order;this._onChangeCallback();return this;}setFromRotationMatrix(m,order,update){var clamp=MathUtils.clamp;// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
var te=m.elements;var m11=te[0],m12=te[4],m13=te[8];var m21=te[1],m22=te[5],m23=te[9];var m31=te[2],m32=te[6],m33=te[10];order=order||this._order;switch(order){case'XYZ':this._y=Math.asin(clamp(m13,-1,1));if(Math.abs(m13)<0.9999999){this._x=Math.atan2(-m23,m33);this._z=Math.atan2(-m12,m11);}else {this._x=Math.atan2(m32,m22);this._z=0;}break;case'YXZ':this._x=Math.asin(-clamp(m23,-1,1));if(Math.abs(m23)<0.9999999){this._y=Math.atan2(m13,m33);this._z=Math.atan2(m21,m22);}else {this._y=Math.atan2(-m31,m11);this._z=0;}break;case'ZXY':this._x=Math.asin(clamp(m32,-1,1));if(Math.abs(m32)<0.9999999){this._y=Math.atan2(-m31,m33);this._z=Math.atan2(-m12,m22);}else {this._y=0;this._z=Math.atan2(m21,m11);}break;case'ZYX':this._y=Math.asin(-clamp(m31,-1,1));if(Math.abs(m31)<0.9999999){this._x=Math.atan2(m32,m33);this._z=Math.atan2(m21,m11);}else {this._x=0;this._z=Math.atan2(-m12,m22);}break;case'YZX':this._z=Math.asin(clamp(m21,-1,1));if(Math.abs(m21)<0.9999999){this._x=Math.atan2(-m23,m22);this._y=Math.atan2(-m31,m11);}else {this._x=0;this._y=Math.atan2(m13,m33);}break;case'XZY':this._z=Math.asin(-clamp(m12,-1,1));if(Math.abs(m12)<0.9999999){this._x=Math.atan2(m32,m22);this._y=Math.atan2(m13,m11);}else {this._x=Math.atan2(-m23,m33);this._y=0;}break;default:console.warn('THREE.Euler: .setFromRotationMatrix() encountered an unknown order: '+order);}this._order=order;if(update!==false)this._onChangeCallback();return this;}setFromQuaternion(q,order,update){_matrix.makeRotationFromQuaternion(q);return this.setFromRotationMatrix(_matrix,order,update);}setFromVector3(v,order){return this.set(v.x,v.y,v.z,order||this._order);}reorder(newOrder){// WARNING: this discards revolution information -bhouston
_quaternion$1.setFromEuler(this);return this.setFromQuaternion(_quaternion$1,newOrder);}equals(euler){return euler._x===this._x&&euler._y===this._y&&euler._z===this._z&&euler._order===this._order;}fromArray(array){this._x=array[0];this._y=array[1];this._z=array[2];if(array[3]!==undefined)this._order=array[3];this._onChangeCallback();return this;}toArray(){var array=arguments.length>0&&arguments[0]!==undefined?arguments[0]:[];var offset=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;array[offset]=this._x;array[offset+1]=this._y;array[offset+2]=this._z;array[offset+3]=this._order;return array;}toVector3(optionalResult){if(optionalResult){return optionalResult.set(this._x,this._y,this._z);}else {return new Vector3(this._x,this._y,this._z);}}_onChange(callback){this._onChangeCallback=callback;return this;}_onChangeCallback(){}}Euler.DefaultOrder='XYZ';Euler.RotationOrders=['XYZ','YZX','ZXY','XZY','YXZ','ZYX'];var _matrix=/*@__PURE__*/new Matrix4();var _quaternion$1=/*@__PURE__*/new Quaternion();class Layers{constructor(){this.mask=1|0;}set(channel){this.mask=1<<channel|0;}enable(channel){this.mask|=1<<channel|0;}enableAll(){this.mask=0xffffffff|0;}toggle(channel){this.mask^=1<<channel|0;}disable(channel){this.mask&=~(1<<channel|0);}disableAll(){this.mask=0;}test(layers){return (this.mask&layers.mask)!==0;}}var _object3DId=0;var _v1$2=new Vector3();var _q1=new Quaternion();var _m1$1=new Matrix4();var _target=new Vector3();var _position=new Vector3();var _scale=new Vector3();var _quaternion$2=new Quaternion();var _xAxis=new Vector3(1,0,0);var _yAxis=new Vector3(0,1,0);var _zAxis=new Vector3(0,0,1);var _addedEvent={type:'added'};var _removedEvent={type:'removed'};function Object3D(){Object.defineProperty(this,'id',{value:_object3DId++});this.uuid=MathUtils.generateUUID();this.name='';this.type='Object3D';this.parent=null;this.children=[];this.up=Object3D.DefaultUp.clone();var position=new Vector3();var rotation=new Euler();var quaternion=new Quaternion();var scale=new Vector3(1,1,1);function onRotationChange(){quaternion.setFromEuler(rotation,false);}function onQuaternionChange(){rotation.setFromQuaternion(quaternion,undefined,false);}rotation._onChange(onRotationChange);quaternion._onChange(onQuaternionChange);Object.defineProperties(this,{position:{configurable:true,enumerable:true,value:position},rotation:{configurable:true,enumerable:true,value:rotation},quaternion:{configurable:true,enumerable:true,value:quaternion},scale:{configurable:true,enumerable:true,value:scale},modelViewMatrix:{value:new Matrix4()},normalMatrix:{value:new Matrix3()}});this.matrix=new Matrix4();this.matrixWorld=new Matrix4();this.matrixAutoUpdate=Object3D.DefaultMatrixAutoUpdate;this.matrixWorldNeedsUpdate=false;this.layers=new Layers();this.visible=true;this.castShadow=false;this.receiveShadow=false;this.frustumCulled=true;this.renderOrder=0;this.animations=[];this.userData={};}Object3D.DefaultUp=new Vector3(0,1,0);Object3D.DefaultMatrixAutoUpdate=true;Object3D.prototype=Object.assign(Object.create(EventDispatcher.prototype),{constructor:Object3D,isObject3D:true,onBeforeRender:function onBeforeRender(){},onAfterRender:function onAfterRender(){},applyMatrix4:function applyMatrix4(matrix){if(this.matrixAutoUpdate)this.updateMatrix();this.matrix.premultiply(matrix);this.matrix.decompose(this.position,this.quaternion,this.scale);},applyQuaternion:function applyQuaternion(q){this.quaternion.premultiply(q);return this;},setRotationFromAxisAngle:function setRotationFromAxisAngle(axis,angle){// assumes axis is normalized
this.quaternion.setFromAxisAngle(axis,angle);},setRotationFromEuler:function setRotationFromEuler(euler){this.quaternion.setFromEuler(euler,true);},setRotationFromMatrix:function setRotationFromMatrix(m){// assumes the upper 3x3 of m is a pure rotation matrix (i.e, unscaled)
this.quaternion.setFromRotationMatrix(m);},setRotationFromQuaternion:function setRotationFromQuaternion(q){// assumes q is normalized
this.quaternion.copy(q);},rotateOnAxis:function rotateOnAxis(axis,angle){// rotate object on axis in object space
// axis is assumed to be normalized
_q1.setFromAxisAngle(axis,angle);this.quaternion.multiply(_q1);return this;},rotateOnWorldAxis:function rotateOnWorldAxis(axis,angle){// rotate object on axis in world space
// axis is assumed to be normalized
// method assumes no rotated parent
_q1.setFromAxisAngle(axis,angle);this.quaternion.premultiply(_q1);return this;},rotateX:function rotateX(angle){return this.rotateOnAxis(_xAxis,angle);},rotateY:function rotateY(angle){return this.rotateOnAxis(_yAxis,angle);},rotateZ:function rotateZ(angle){return this.rotateOnAxis(_zAxis,angle);},translateOnAxis:function translateOnAxis(axis,distance){// translate object by distance along axis in object space
// axis is assumed to be normalized
_v1$2.copy(axis).applyQuaternion(this.quaternion);this.position.add(_v1$2.multiplyScalar(distance));return this;},translateX:function translateX(distance){return this.translateOnAxis(_xAxis,distance);},translateY:function translateY(distance){return this.translateOnAxis(_yAxis,distance);},translateZ:function translateZ(distance){return this.translateOnAxis(_zAxis,distance);},localToWorld:function localToWorld(vector){return vector.applyMatrix4(this.matrixWorld);},worldToLocal:function worldToLocal(vector){return vector.applyMatrix4(_m1$1.copy(this.matrixWorld).invert());},lookAt:function lookAt(x,y,z){// This method does not support objects having non-uniformly-scaled parent(s)
if(x.isVector3){_target.copy(x);}else {_target.set(x,y,z);}var parent=this.parent;this.updateWorldMatrix(true,false);_position.setFromMatrixPosition(this.matrixWorld);if(this.isCamera||this.isLight){_m1$1.lookAt(_position,_target,this.up);}else {_m1$1.lookAt(_target,_position,this.up);}this.quaternion.setFromRotationMatrix(_m1$1);if(parent){_m1$1.extractRotation(parent.matrixWorld);_q1.setFromRotationMatrix(_m1$1);this.quaternion.premultiply(_q1.invert());}},add:function add(object){if(arguments.length>1){for(var _i12=0;_i12<arguments.length;_i12++){this.add(arguments[_i12]);}return this;}if(object===this){console.error('THREE.Object3D.add: object can\'t be added as a child of itself.',object);return this;}if(object&&object.isObject3D){if(object.parent!==null){object.parent.remove(object);}object.parent=this;this.children.push(object);object.dispatchEvent(_addedEvent);}else {console.error('THREE.Object3D.add: object not an instance of THREE.Object3D.',object);}return this;},remove:function remove(object){if(arguments.length>1){for(var _i13=0;_i13<arguments.length;_i13++){this.remove(arguments[_i13]);}return this;}var index=this.children.indexOf(object);if(index!==-1){object.parent=null;this.children.splice(index,1);object.dispatchEvent(_removedEvent);}return this;},clear:function clear(){for(var _i14=0;_i14<this.children.length;_i14++){var object=this.children[_i14];object.parent=null;object.dispatchEvent(_removedEvent);}this.children.length=0;return this;},attach:function attach(object){// adds object as a child of this, while maintaining the object's world transform
this.updateWorldMatrix(true,false);_m1$1.copy(this.matrixWorld).invert();if(object.parent!==null){object.parent.updateWorldMatrix(true,false);_m1$1.multiply(object.parent.matrixWorld);}object.applyMatrix4(_m1$1);object.updateWorldMatrix(false,false);this.add(object);return this;},getObjectById:function getObjectById(id){return this.getObjectByProperty('id',id);},getObjectByName:function getObjectByName(name){return this.getObjectByProperty('name',name);},getObjectByProperty:function getObjectByProperty(name,value){if(this[name]===value)return this;for(var _i15=0,l=this.children.length;_i15<l;_i15++){var child=this.children[_i15];var object=child.getObjectByProperty(name,value);if(object!==undefined){return object;}}return undefined;},getWorldPosition:function getWorldPosition(target){if(target===undefined){console.warn('THREE.Object3D: .getWorldPosition() target is now required');target=new Vector3();}this.updateWorldMatrix(true,false);return target.setFromMatrixPosition(this.matrixWorld);},getWorldQuaternion:function getWorldQuaternion(target){if(target===undefined){console.warn('THREE.Object3D: .getWorldQuaternion() target is now required');target=new Quaternion();}this.updateWorldMatrix(true,false);this.matrixWorld.decompose(_position,target,_scale);return target;},getWorldScale:function getWorldScale(target){if(target===undefined){console.warn('THREE.Object3D: .getWorldScale() target is now required');target=new Vector3();}this.updateWorldMatrix(true,false);this.matrixWorld.decompose(_position,_quaternion$2,target);return target;},getWorldDirection:function getWorldDirection(target){if(target===undefined){console.warn('THREE.Object3D: .getWorldDirection() target is now required');target=new Vector3();}this.updateWorldMatrix(true,false);var e=this.matrixWorld.elements;return target.set(e[8],e[9],e[10]).normalize();},raycast:function raycast(){},traverse:function traverse(callback){callback(this);var children=this.children;for(var _i16=0,l=children.length;_i16<l;_i16++){children[_i16].traverse(callback);}},traverseVisible:function traverseVisible(callback){if(this.visible===false)return;callback(this);var children=this.children;for(var _i17=0,l=children.length;_i17<l;_i17++){children[_i17].traverseVisible(callback);}},traverseAncestors:function traverseAncestors(callback){var parent=this.parent;if(parent!==null){callback(parent);parent.traverseAncestors(callback);}},updateMatrix:function updateMatrix(){this.matrix.compose(this.position,this.quaternion,this.scale);this.matrixWorldNeedsUpdate=true;},updateMatrixWorld:function updateMatrixWorld(force){if(this.matrixAutoUpdate)this.updateMatrix();if(this.matrixWorldNeedsUpdate||force){if(this.parent===null){this.matrixWorld.copy(this.matrix);}else {this.matrixWorld.multiplyMatrices(this.parent.matrixWorld,this.matrix);}this.matrixWorldNeedsUpdate=false;force=true;}// update children
var children=this.children;for(var _i18=0,l=children.length;_i18<l;_i18++){children[_i18].updateMatrixWorld(force);}},updateWorldMatrix:function updateWorldMatrix(updateParents,updateChildren){var parent=this.parent;if(updateParents===true&&parent!==null){parent.updateWorldMatrix(true,false);}if(this.matrixAutoUpdate)this.updateMatrix();if(this.parent===null){this.matrixWorld.copy(this.matrix);}else {this.matrixWorld.multiplyMatrices(this.parent.matrixWorld,this.matrix);}// update children
if(updateChildren===true){var children=this.children;for(var _i19=0,l=children.length;_i19<l;_i19++){children[_i19].updateWorldMatrix(false,true);}}},toJSON:function toJSON(meta){// meta is a string when called from JSON.stringify
var isRootObject=meta===undefined||typeof meta==='string';var output={};// meta is a hash used to collect geometries, materials.
// not providing it implies that this is the root object
// being serialized.
if(isRootObject){// initialize meta obj
meta={geometries:{},materials:{},textures:{},images:{},shapes:{},skeletons:{},animations:{}};output.metadata={version:4.5,type:'Object',generator:'Object3D.toJSON'};}// standard Object3D serialization
var object={};object.uuid=this.uuid;object.type=this.type;if(this.name!=='')object.name=this.name;if(this.castShadow===true)object.castShadow=true;if(this.receiveShadow===true)object.receiveShadow=true;if(this.visible===false)object.visible=false;if(this.frustumCulled===false)object.frustumCulled=false;if(this.renderOrder!==0)object.renderOrder=this.renderOrder;if(JSON.stringify(this.userData)!=='{}')object.userData=this.userData;object.layers=this.layers.mask;object.matrix=this.matrix.toArray();if(this.matrixAutoUpdate===false)object.matrixAutoUpdate=false;// object specific properties
if(this.isInstancedMesh){object.type='InstancedMesh';object.count=this.count;object.instanceMatrix=this.instanceMatrix.toJSON();}//
function serialize(library,element){if(library[element.uuid]===undefined){library[element.uuid]=element.toJSON(meta);}return element.uuid;}if(this.isMesh||this.isLine||this.isPoints){object.geometry=serialize(meta.geometries,this.geometry);var parameters=this.geometry.parameters;if(parameters!==undefined&&parameters.shapes!==undefined){var shapes=parameters.shapes;if(Array.isArray(shapes)){for(var _i20=0,l=shapes.length;_i20<l;_i20++){var shape=shapes[_i20];serialize(meta.shapes,shape);}}else {serialize(meta.shapes,shapes);}}}if(this.isSkinnedMesh){object.bindMode=this.bindMode;object.bindMatrix=this.bindMatrix.toArray();if(this.skeleton!==undefined){serialize(meta.skeletons,this.skeleton);object.skeleton=this.skeleton.uuid;}}if(this.material!==undefined){if(Array.isArray(this.material)){var uuids=[];for(var _i21=0,_l=this.material.length;_i21<_l;_i21++){uuids.push(serialize(meta.materials,this.material[_i21]));}object.material=uuids;}else {object.material=serialize(meta.materials,this.material);}}//
if(this.children.length>0){object.children=[];for(var _i22=0;_i22<this.children.length;_i22++){object.children.push(this.children[_i22].toJSON(meta).object);}}//
if(this.animations.length>0){object.animations=[];for(var _i23=0;_i23<this.animations.length;_i23++){var animation=this.animations[_i23];object.animations.push(serialize(meta.animations,animation));}}if(isRootObject){var geometries=extractFromCache(meta.geometries);var materials=extractFromCache(meta.materials);var textures=extractFromCache(meta.textures);var images=extractFromCache(meta.images);var _shapes=extractFromCache(meta.shapes);var skeletons=extractFromCache(meta.skeletons);var animations=extractFromCache(meta.animations);if(geometries.length>0)output.geometries=geometries;if(materials.length>0)output.materials=materials;if(textures.length>0)output.textures=textures;if(images.length>0)output.images=images;if(_shapes.length>0)output.shapes=_shapes;if(skeletons.length>0)output.skeletons=skeletons;if(animations.length>0)output.animations=animations;}output.object=object;return output;// extract data from the cache hash
// remove metadata on each item
// and return as array
function extractFromCache(cache){var values=[];for(var key in cache){var data=cache[key];delete data.metadata;values.push(data);}return values;}},clone:function clone(recursive){return new this.constructor().copy(this,recursive);},copy:function copy(source){var recursive=arguments.length>1&&arguments[1]!==undefined?arguments[1]:true;this.name=source.name;this.up.copy(source.up);this.position.copy(source.position);this.rotation.order=source.rotation.order;this.quaternion.copy(source.quaternion);this.scale.copy(source.scale);this.matrix.copy(source.matrix);this.matrixWorld.copy(source.matrixWorld);this.matrixAutoUpdate=source.matrixAutoUpdate;this.matrixWorldNeedsUpdate=source.matrixWorldNeedsUpdate;this.layers.mask=source.layers.mask;this.visible=source.visible;this.castShadow=source.castShadow;this.receiveShadow=source.receiveShadow;this.frustumCulled=source.frustumCulled;this.renderOrder=source.renderOrder;this.userData=JSON.parse(JSON.stringify(source.userData));if(recursive===true){for(var _i24=0;_i24<source.children.length;_i24++){var child=source.children[_i24];this.add(child.clone());}}return this;}});var _vector1=/*@__PURE__*/new Vector3();var _vector2=/*@__PURE__*/new Vector3();var _normalMatrix=/*@__PURE__*/new Matrix3();class Plane{constructor(normal,constant){Object.defineProperty(this,'isPlane',{value:true});// normal is assumed to be normalized
this.normal=normal!==undefined?normal:new Vector3(1,0,0);this.constant=constant!==undefined?constant:0;}set(normal,constant){this.normal.copy(normal);this.constant=constant;return this;}setComponents(x,y,z,w){this.normal.set(x,y,z);this.constant=w;return this;}setFromNormalAndCoplanarPoint(normal,point){this.normal.copy(normal);this.constant=-point.dot(this.normal);return this;}setFromCoplanarPoints(a,b,c){var normal=_vector1.subVectors(c,b).cross(_vector2.subVectors(a,b)).normalize();// Q: should an error be thrown if normal is zero (e.g. degenerate plane)?
this.setFromNormalAndCoplanarPoint(normal,a);return this;}clone(){return new this.constructor().copy(this);}copy(plane){this.normal.copy(plane.normal);this.constant=plane.constant;return this;}normalize(){// Note: will lead to a divide by zero if the plane is invalid.
var inverseNormalLength=1.0/this.normal.length();this.normal.multiplyScalar(inverseNormalLength);this.constant*=inverseNormalLength;return this;}negate(){this.constant*=-1;this.normal.negate();return this;}distanceToPoint(point){return this.normal.dot(point)+this.constant;}distanceToSphere(sphere){return this.distanceToPoint(sphere.center)-sphere.radius;}projectPoint(point,target){if(target===undefined){console.warn('THREE.Plane: .projectPoint() target is now required');target=new Vector3();}return target.copy(this.normal).multiplyScalar(-this.distanceToPoint(point)).add(point);}intersectLine(line,target){if(target===undefined){console.warn('THREE.Plane: .intersectLine() target is now required');target=new Vector3();}var direction=line.delta(_vector1);var denominator=this.normal.dot(direction);if(denominator===0){// line is coplanar, return origin
if(this.distanceToPoint(line.start)===0){return target.copy(line.start);}// Unsure if this is the correct method to handle this case.
return undefined;}var t=-(line.start.dot(this.normal)+this.constant)/denominator;if(t<0||t>1){return undefined;}return target.copy(direction).multiplyScalar(t).add(line.start);}intersectsLine(line){// Note: this tests if a line intersects the plane, not whether it (or its end-points) are coplanar with it.
var startSign=this.distanceToPoint(line.start);var endSign=this.distanceToPoint(line.end);return startSign<0&&endSign>0||endSign<0&&startSign>0;}intersectsBox(box){return box.intersectsPlane(this);}intersectsSphere(sphere){return sphere.intersectsPlane(this);}coplanarPoint(target){if(target===undefined){console.warn('THREE.Plane: .coplanarPoint() target is now required');target=new Vector3();}return target.copy(this.normal).multiplyScalar(-this.constant);}applyMatrix4(matrix,optionalNormalMatrix){var normalMatrix=optionalNormalMatrix||_normalMatrix.getNormalMatrix(matrix);var referencePoint=this.coplanarPoint(_vector1).applyMatrix4(matrix);var normal=this.normal.applyMatrix3(normalMatrix).normalize();this.constant=-referencePoint.dot(normal);return this;}translate(offset){this.constant-=offset.dot(this.normal);return this;}equals(plane){return plane.normal.equals(this.normal)&&plane.constant===this.constant;}}var _v0$1=/*@__PURE__*/new Vector3();var _v1$3=/*@__PURE__*/new Vector3();var _v2$1=/*@__PURE__*/new Vector3();var _v3=/*@__PURE__*/new Vector3();var _vab=/*@__PURE__*/new Vector3();var _vac=/*@__PURE__*/new Vector3();var _vbc=/*@__PURE__*/new Vector3();var _vap=/*@__PURE__*/new Vector3();var _vbp=/*@__PURE__*/new Vector3();var _vcp=/*@__PURE__*/new Vector3();class Triangle{constructor(a,b,c){this.a=a!==undefined?a:new Vector3();this.b=b!==undefined?b:new Vector3();this.c=c!==undefined?c:new Vector3();}static getNormal(a,b,c,target){if(target===undefined){console.warn('THREE.Triangle: .getNormal() target is now required');target=new Vector3();}target.subVectors(c,b);_v0$1.subVectors(a,b);target.cross(_v0$1);var targetLengthSq=target.lengthSq();if(targetLengthSq>0){return target.multiplyScalar(1/Math.sqrt(targetLengthSq));}return target.set(0,0,0);}// static/instance method to calculate barycentric coordinates
// based on: http://www.blackpawn.com/texts/pointinpoly/default.html
static getBarycoord(point,a,b,c,target){_v0$1.subVectors(c,a);_v1$3.subVectors(b,a);_v2$1.subVectors(point,a);var dot00=_v0$1.dot(_v0$1);var dot01=_v0$1.dot(_v1$3);var dot02=_v0$1.dot(_v2$1);var dot11=_v1$3.dot(_v1$3);var dot12=_v1$3.dot(_v2$1);var denom=dot00*dot11-dot01*dot01;if(target===undefined){console.warn('THREE.Triangle: .getBarycoord() target is now required');target=new Vector3();}// collinear or singular triangle
if(denom===0){// arbitrary location outside of triangle?
// not sure if this is the best idea, maybe should be returning undefined
return target.set(-2,-1,-1);}var invDenom=1/denom;var u=(dot11*dot02-dot01*dot12)*invDenom;var v=(dot00*dot12-dot01*dot02)*invDenom;// barycentric coordinates must always sum to 1
return target.set(1-u-v,v,u);}static containsPoint(point,a,b,c){this.getBarycoord(point,a,b,c,_v3);return _v3.x>=0&&_v3.y>=0&&_v3.x+_v3.y<=1;}static getUV(point,p1,p2,p3,uv1,uv2,uv3,target){this.getBarycoord(point,p1,p2,p3,_v3);target.set(0,0);target.addScaledVector(uv1,_v3.x);target.addScaledVector(uv2,_v3.y);target.addScaledVector(uv3,_v3.z);return target;}static isFrontFacing(a,b,c,direction){_v0$1.subVectors(c,b);_v1$3.subVectors(a,b);// strictly front facing
return _v0$1.cross(_v1$3).dot(direction)<0?true:false;}set(a,b,c){this.a.copy(a);this.b.copy(b);this.c.copy(c);return this;}setFromPointsAndIndices(points,i0,i1,i2){this.a.copy(points[i0]);this.b.copy(points[i1]);this.c.copy(points[i2]);return this;}clone(){return new this.constructor().copy(this);}copy(triangle){this.a.copy(triangle.a);this.b.copy(triangle.b);this.c.copy(triangle.c);return this;}getArea(){_v0$1.subVectors(this.c,this.b);_v1$3.subVectors(this.a,this.b);return _v0$1.cross(_v1$3).length()*0.5;}getMidpoint(target){if(target===undefined){console.warn('THREE.Triangle: .getMidpoint() target is now required');target=new Vector3();}return target.addVectors(this.a,this.b).add(this.c).multiplyScalar(1/3);}getNormal(target){return Triangle.getNormal(this.a,this.b,this.c,target);}getPlane(target){if(target===undefined){console.warn('THREE.Triangle: .getPlane() target is now required');target=new Plane();}return target.setFromCoplanarPoints(this.a,this.b,this.c);}getBarycoord(point,target){return Triangle.getBarycoord(point,this.a,this.b,this.c,target);}getUV(point,uv1,uv2,uv3,target){return Triangle.getUV(point,this.a,this.b,this.c,uv1,uv2,uv3,target);}containsPoint(point){return Triangle.containsPoint(point,this.a,this.b,this.c);}isFrontFacing(direction){return Triangle.isFrontFacing(this.a,this.b,this.c,direction);}intersectsBox(box){return box.intersectsTriangle(this);}closestPointToPoint(p,target){if(target===undefined){console.warn('THREE.Triangle: .closestPointToPoint() target is now required');target=new Vector3();}var a=this.a,b=this.b,c=this.c;var v,w;// algorithm thanks to Real-Time Collision Detection by Christer Ericson,
// published by Morgan Kaufmann Publishers, (c) 2005 Elsevier Inc.,
// under the accompanying license; see chapter 5.1.5 for detailed explanation.
// basically, we're distinguishing which of the voronoi regions of the triangle
// the point lies in with the minimum amount of redundant computation.
_vab.subVectors(b,a);_vac.subVectors(c,a);_vap.subVectors(p,a);var d1=_vab.dot(_vap);var d2=_vac.dot(_vap);if(d1<=0&&d2<=0){// vertex region of A; barycentric coords (1, 0, 0)
return target.copy(a);}_vbp.subVectors(p,b);var d3=_vab.dot(_vbp);var d4=_vac.dot(_vbp);if(d3>=0&&d4<=d3){// vertex region of B; barycentric coords (0, 1, 0)
return target.copy(b);}var vc=d1*d4-d3*d2;if(vc<=0&&d1>=0&&d3<=0){v=d1/(d1-d3);// edge region of AB; barycentric coords (1-v, v, 0)
return target.copy(a).addScaledVector(_vab,v);}_vcp.subVectors(p,c);var d5=_vab.dot(_vcp);var d6=_vac.dot(_vcp);if(d6>=0&&d5<=d6){// vertex region of C; barycentric coords (0, 0, 1)
return target.copy(c);}var vb=d5*d2-d1*d6;if(vb<=0&&d2>=0&&d6<=0){w=d2/(d2-d6);// edge region of AC; barycentric coords (1-w, 0, w)
return target.copy(a).addScaledVector(_vac,w);}var va=d3*d6-d5*d4;if(va<=0&&d4-d3>=0&&d5-d6>=0){_vbc.subVectors(c,b);w=(d4-d3)/(d4-d3+(d5-d6));// edge region of BC; barycentric coords (0, 1-w, w)
return target.copy(b).addScaledVector(_vbc,w);// edge region of BC
}// face region
var denom=1/(va+vb+vc);// u = va * denom
v=vb*denom;w=vc*denom;return target.copy(a).addScaledVector(_vab,v).addScaledVector(_vac,w);}equals(triangle){return triangle.a.equals(this.a)&&triangle.b.equals(this.b)&&triangle.c.equals(this.c);}}var _colorKeywords={'aliceblue':0xF0F8FF,'antiquewhite':0xFAEBD7,'aqua':0x00FFFF,'aquamarine':0x7FFFD4,'azure':0xF0FFFF,'beige':0xF5F5DC,'bisque':0xFFE4C4,'black':0x000000,'blanchedalmond':0xFFEBCD,'blue':0x0000FF,'blueviolet':0x8A2BE2,'brown':0xA52A2A,'burlywood':0xDEB887,'cadetblue':0x5F9EA0,'chartreuse':0x7FFF00,'chocolate':0xD2691E,'coral':0xFF7F50,'cornflowerblue':0x6495ED,'cornsilk':0xFFF8DC,'crimson':0xDC143C,'cyan':0x00FFFF,'darkblue':0x00008B,'darkcyan':0x008B8B,'darkgoldenrod':0xB8860B,'darkgray':0xA9A9A9,'darkgreen':0x006400,'darkgrey':0xA9A9A9,'darkkhaki':0xBDB76B,'darkmagenta':0x8B008B,'darkolivegreen':0x556B2F,'darkorange':0xFF8C00,'darkorchid':0x9932CC,'darkred':0x8B0000,'darksalmon':0xE9967A,'darkseagreen':0x8FBC8F,'darkslateblue':0x483D8B,'darkslategray':0x2F4F4F,'darkslategrey':0x2F4F4F,'darkturquoise':0x00CED1,'darkviolet':0x9400D3,'deeppink':0xFF1493,'deepskyblue':0x00BFFF,'dimgray':0x696969,'dimgrey':0x696969,'dodgerblue':0x1E90FF,'firebrick':0xB22222,'floralwhite':0xFFFAF0,'forestgreen':0x228B22,'fuchsia':0xFF00FF,'gainsboro':0xDCDCDC,'ghostwhite':0xF8F8FF,'gold':0xFFD700,'goldenrod':0xDAA520,'gray':0x808080,'green':0x008000,'greenyellow':0xADFF2F,'grey':0x808080,'honeydew':0xF0FFF0,'hotpink':0xFF69B4,'indianred':0xCD5C5C,'indigo':0x4B0082,'ivory':0xFFFFF0,'khaki':0xF0E68C,'lavender':0xE6E6FA,'lavenderblush':0xFFF0F5,'lawngreen':0x7CFC00,'lemonchiffon':0xFFFACD,'lightblue':0xADD8E6,'lightcoral':0xF08080,'lightcyan':0xE0FFFF,'lightgoldenrodyellow':0xFAFAD2,'lightgray':0xD3D3D3,'lightgreen':0x90EE90,'lightgrey':0xD3D3D3,'lightpink':0xFFB6C1,'lightsalmon':0xFFA07A,'lightseagreen':0x20B2AA,'lightskyblue':0x87CEFA,'lightslategray':0x778899,'lightslategrey':0x778899,'lightsteelblue':0xB0C4DE,'lightyellow':0xFFFFE0,'lime':0x00FF00,'limegreen':0x32CD32,'linen':0xFAF0E6,'magenta':0xFF00FF,'maroon':0x800000,'mediumaquamarine':0x66CDAA,'mediumblue':0x0000CD,'mediumorchid':0xBA55D3,'mediumpurple':0x9370DB,'mediumseagreen':0x3CB371,'mediumslateblue':0x7B68EE,'mediumspringgreen':0x00FA9A,'mediumturquoise':0x48D1CC,'mediumvioletred':0xC71585,'midnightblue':0x191970,'mintcream':0xF5FFFA,'mistyrose':0xFFE4E1,'moccasin':0xFFE4B5,'navajowhite':0xFFDEAD,'navy':0x000080,'oldlace':0xFDF5E6,'olive':0x808000,'olivedrab':0x6B8E23,'orange':0xFFA500,'orangered':0xFF4500,'orchid':0xDA70D6,'palegoldenrod':0xEEE8AA,'palegreen':0x98FB98,'paleturquoise':0xAFEEEE,'palevioletred':0xDB7093,'papayawhip':0xFFEFD5,'peachpuff':0xFFDAB9,'peru':0xCD853F,'pink':0xFFC0CB,'plum':0xDDA0DD,'powderblue':0xB0E0E6,'purple':0x800080,'rebeccapurple':0x663399,'red':0xFF0000,'rosybrown':0xBC8F8F,'royalblue':0x4169E1,'saddlebrown':0x8B4513,'salmon':0xFA8072,'sandybrown':0xF4A460,'seagreen':0x2E8B57,'seashell':0xFFF5EE,'sienna':0xA0522D,'silver':0xC0C0C0,'skyblue':0x87CEEB,'slateblue':0x6A5ACD,'slategray':0x708090,'slategrey':0x708090,'snow':0xFFFAFA,'springgreen':0x00FF7F,'steelblue':0x4682B4,'tan':0xD2B48C,'teal':0x008080,'thistle':0xD8BFD8,'tomato':0xFF6347,'turquoise':0x40E0D0,'violet':0xEE82EE,'wheat':0xF5DEB3,'white':0xFFFFFF,'whitesmoke':0xF5F5F5,'yellow':0xFFFF00,'yellowgreen':0x9ACD32};var _hslA={h:0,s:0,l:0};var _hslB={h:0,s:0,l:0};function hue2rgb(p,q,t){if(t<0)t+=1;if(t>1)t-=1;if(t<1/6)return p+(q-p)*6*t;if(t<1/2)return q;if(t<2/3)return p+(q-p)*6*(2/3-t);return p;}function SRGBToLinear(c){return c<0.04045?c*0.0773993808:Math.pow(c*0.9478672986+0.0521327014,2.4);}function LinearToSRGB(c){return c<0.0031308?c*12.92:1.055*Math.pow(c,0.41666)-0.055;}class Color{constructor(r,g,b){Object.defineProperty(this,'isColor',{value:true});if(g===undefined&&b===undefined){// r is THREE.Color, hex or string
return this.set(r);}return this.setRGB(r,g,b);}set(value){if(value&&value.isColor){this.copy(value);}else if(typeof value==='number'){this.setHex(value);}else if(typeof value==='string'){this.setStyle(value);}return this;}setScalar(scalar){this.r=scalar;this.g=scalar;this.b=scalar;return this;}setHex(hex){hex=Math.floor(hex);this.r=(hex>>16&255)/255;this.g=(hex>>8&255)/255;this.b=(hex&255)/255;return this;}setRGB(r,g,b){this.r=r;this.g=g;this.b=b;return this;}setHSL(h,s,l){// h,s,l ranges are in 0.0 - 1.0
h=MathUtils.euclideanModulo(h,1);s=MathUtils.clamp(s,0,1);l=MathUtils.clamp(l,0,1);if(s===0){this.r=this.g=this.b=l;}else {var p=l<=0.5?l*(1+s):l+s-l*s;var q=2*l-p;this.r=hue2rgb(q,p,h+1/3);this.g=hue2rgb(q,p,h);this.b=hue2rgb(q,p,h-1/3);}return this;}setStyle(style){function handleAlpha(string){if(string===undefined)return;if(parseFloat(string)<1){console.warn('THREE.Color: Alpha component of '+style+' will be ignored.');}}var m;if(m=/^((?:rgb|hsl)a?)\(\s*([^\)]*)\)/.exec(style)){// rgb / hsl
var color;var name=m[1];var components=m[2];switch(name){case'rgb':case'rgba':if(color=/^(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(components)){// rgb(255,0,0) rgba(255,0,0,0.5)
this.r=Math.min(255,parseInt(color[1],10))/255;this.g=Math.min(255,parseInt(color[2],10))/255;this.b=Math.min(255,parseInt(color[3],10))/255;handleAlpha(color[4]);return this;}if(color=/^(\d+)\%\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(components)){// rgb(100%,0%,0%) rgba(100%,0%,0%,0.5)
this.r=Math.min(100,parseInt(color[1],10))/100;this.g=Math.min(100,parseInt(color[2],10))/100;this.b=Math.min(100,parseInt(color[3],10))/100;handleAlpha(color[4]);return this;}break;case'hsl':case'hsla':if(color=/^(\d*\.?\d+)\s*,\s*(\d+)\%\s*,\s*(\d+)\%\s*(?:,\s*(\d*\.?\d+)\s*)?$/.exec(components)){// hsl(120,50%,50%) hsla(120,50%,50%,0.5)
var h=parseFloat(color[1])/360;var s=parseInt(color[2],10)/100;var l=parseInt(color[3],10)/100;handleAlpha(color[4]);return this.setHSL(h,s,l);}break;}}else if(m=/^\#([A-Fa-f\d]+)$/.exec(style)){// hex color
var hex=m[1];var size=hex.length;if(size===3){// #ff0
this.r=parseInt(hex.charAt(0)+hex.charAt(0),16)/255;this.g=parseInt(hex.charAt(1)+hex.charAt(1),16)/255;this.b=parseInt(hex.charAt(2)+hex.charAt(2),16)/255;return this;}else if(size===6){// #ff0000
this.r=parseInt(hex.charAt(0)+hex.charAt(1),16)/255;this.g=parseInt(hex.charAt(2)+hex.charAt(3),16)/255;this.b=parseInt(hex.charAt(4)+hex.charAt(5),16)/255;return this;}}if(style&&style.length>0){return this.setColorName(style);}return this;}setColorName(style){// color keywords
var hex=_colorKeywords[style];if(hex!==undefined){// red
this.setHex(hex);}else {// unknown color
console.warn('THREE.Color: Unknown color '+style);}return this;}clone(){return new this.constructor(this.r,this.g,this.b);}copy(color){this.r=color.r;this.g=color.g;this.b=color.b;return this;}copyGammaToLinear(color){var gammaFactor=arguments.length>1&&arguments[1]!==undefined?arguments[1]:2.0;this.r=Math.pow(color.r,gammaFactor);this.g=Math.pow(color.g,gammaFactor);this.b=Math.pow(color.b,gammaFactor);return this;}copyLinearToGamma(color){var gammaFactor=arguments.length>1&&arguments[1]!==undefined?arguments[1]:2.0;var safeInverse=gammaFactor>0?1.0/gammaFactor:1.0;this.r=Math.pow(color.r,safeInverse);this.g=Math.pow(color.g,safeInverse);this.b=Math.pow(color.b,safeInverse);return this;}convertGammaToLinear(gammaFactor){this.copyGammaToLinear(this,gammaFactor);return this;}convertLinearToGamma(gammaFactor){this.copyLinearToGamma(this,gammaFactor);return this;}copySRGBToLinear(color){this.r=SRGBToLinear(color.r);this.g=SRGBToLinear(color.g);this.b=SRGBToLinear(color.b);return this;}copyLinearToSRGB(color){this.r=LinearToSRGB(color.r);this.g=LinearToSRGB(color.g);this.b=LinearToSRGB(color.b);return this;}convertSRGBToLinear(){this.copySRGBToLinear(this);return this;}convertLinearToSRGB(){this.copyLinearToSRGB(this);return this;}getHex(){return this.r*255<<16^this.g*255<<8^this.b*255<<0;}getHexString(){return ('000000'+this.getHex().toString(16)).slice(-6);}getHSL(target){// h,s,l ranges are in 0.0 - 1.0
if(target===undefined){console.warn('THREE.Color: .getHSL() target is now required');target={h:0,s:0,l:0};}var r=this.r,g=this.g,b=this.b;var max=Math.max(r,g,b);var min=Math.min(r,g,b);var hue,saturation;var lightness=(min+max)/2.0;if(min===max){hue=0;saturation=0;}else {var delta=max-min;saturation=lightness<=0.5?delta/(max+min):delta/(2-max-min);switch(max){case r:hue=(g-b)/delta+(g<b?6:0);break;case g:hue=(b-r)/delta+2;break;case b:hue=(r-g)/delta+4;break;}hue/=6;}target.h=hue;target.s=saturation;target.l=lightness;return target;}getStyle(){return 'rgb('+(this.r*255|0)+','+(this.g*255|0)+','+(this.b*255|0)+')';}offsetHSL(h,s,l){this.getHSL(_hslA);_hslA.h+=h;_hslA.s+=s;_hslA.l+=l;this.setHSL(_hslA.h,_hslA.s,_hslA.l);return this;}add(color){this.r+=color.r;this.g+=color.g;this.b+=color.b;return this;}addColors(color1,color2){this.r=color1.r+color2.r;this.g=color1.g+color2.g;this.b=color1.b+color2.b;return this;}addScalar(s){this.r+=s;this.g+=s;this.b+=s;return this;}sub(color){this.r=Math.max(0,this.r-color.r);this.g=Math.max(0,this.g-color.g);this.b=Math.max(0,this.b-color.b);return this;}multiply(color){this.r*=color.r;this.g*=color.g;this.b*=color.b;return this;}multiplyScalar(s){this.r*=s;this.g*=s;this.b*=s;return this;}lerp(color,alpha){this.r+=(color.r-this.r)*alpha;this.g+=(color.g-this.g)*alpha;this.b+=(color.b-this.b)*alpha;return this;}lerpHSL(color,alpha){this.getHSL(_hslA);color.getHSL(_hslB);var h=MathUtils.lerp(_hslA.h,_hslB.h,alpha);var s=MathUtils.lerp(_hslA.s,_hslB.s,alpha);var l=MathUtils.lerp(_hslA.l,_hslB.l,alpha);this.setHSL(h,s,l);return this;}equals(c){return c.r===this.r&&c.g===this.g&&c.b===this.b;}fromArray(array){var offset=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;this.r=array[offset];this.g=array[offset+1];this.b=array[offset+2];return this;}toArray(){var array=arguments.length>0&&arguments[0]!==undefined?arguments[0]:[];var offset=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;array[offset]=this.r;array[offset+1]=this.g;array[offset+2]=this.b;return array;}fromBufferAttribute(attribute,index){this.r=attribute.getX(index);this.g=attribute.getY(index);this.b=attribute.getZ(index);if(attribute.normalized===true){// assuming Uint8Array
this.r/=255;this.g/=255;this.b/=255;}return this;}toJSON(){return this.getHex();}}Color.NAMES=_colorKeywords;Color.prototype.r=1;Color.prototype.g=1;Color.prototype.b=1;class Face3{constructor(a,b,c,normal,color){var materialIndex=arguments.length>5&&arguments[5]!==undefined?arguments[5]:0;this.a=a;this.b=b;this.c=c;this.normal=normal&&normal.isVector3?normal:new Vector3();this.vertexNormals=Array.isArray(normal)?normal:[];this.color=color&&color.isColor?color:new Color();this.vertexColors=Array.isArray(color)?color:[];this.materialIndex=materialIndex;}clone(){return new this.constructor().copy(this);}copy(source){this.a=source.a;this.b=source.b;this.c=source.c;this.normal.copy(source.normal);this.color.copy(source.color);this.materialIndex=source.materialIndex;for(var _i25=0,il=source.vertexNormals.length;_i25<il;_i25++){this.vertexNormals[_i25]=source.vertexNormals[_i25].clone();}for(var _i26=0,_il=source.vertexColors.length;_i26<_il;_i26++){this.vertexColors[_i26]=source.vertexColors[_i26].clone();}return this;}}var materialId=0;function Material(){Object.defineProperty(this,'id',{value:materialId++});this.uuid=MathUtils.generateUUID();this.name='';this.type='Material';this.fog=true;this.blending=NormalBlending;this.side=FrontSide;this.flatShading=false;this.vertexColors=false;this.opacity=1;this.transparent=false;this.blendSrc=SrcAlphaFactor;this.blendDst=OneMinusSrcAlphaFactor;this.blendEquation=AddEquation;this.blendSrcAlpha=null;this.blendDstAlpha=null;this.blendEquationAlpha=null;this.depthFunc=LessEqualDepth;this.depthTest=true;this.depthWrite=true;this.stencilWriteMask=0xff;this.stencilFunc=AlwaysStencilFunc;this.stencilRef=0;this.stencilFuncMask=0xff;this.stencilFail=KeepStencilOp;this.stencilZFail=KeepStencilOp;this.stencilZPass=KeepStencilOp;this.stencilWrite=false;this.clippingPlanes=null;this.clipIntersection=false;this.clipShadows=false;this.shadowSide=null;this.colorWrite=true;this.precision=null;// override the renderer's default precision for this material
this.polygonOffset=false;this.polygonOffsetFactor=0;this.polygonOffsetUnits=0;this.dithering=false;this.alphaTest=0;this.premultipliedAlpha=false;this.visible=true;this.toneMapped=true;this.userData={};this.version=0;}Material.prototype=Object.assign(Object.create(EventDispatcher.prototype),{constructor:Material,isMaterial:true,onBeforeCompile:function onBeforeCompile(/* shaderobject, renderer */){},customProgramCacheKey:function customProgramCacheKey(){return this.onBeforeCompile.toString();},setValues:function setValues(values){if(values===undefined)return;for(var key in values){var newValue=values[key];if(newValue===undefined){console.warn('THREE.Material: \''+key+'\' parameter is undefined.');continue;}// for backward compatability if shading is set in the constructor
if(key==='shading'){console.warn('THREE.'+this.type+': .shading has been removed. Use the boolean .flatShading instead.');this.flatShading=newValue===FlatShading?true:false;continue;}var currentValue=this[key];if(currentValue===undefined){//console.warn( 'THREE.' + this.type + ': \'' + key + '\' is not a property of this material.' );
continue;}if(currentValue&&currentValue.isColor){currentValue.set(newValue);}else if(currentValue&&currentValue.isVector3&&newValue&&newValue.isVector3){currentValue.copy(newValue);}else {this[key]=newValue;}}},toJSON:function toJSON(meta){var isRoot=meta===undefined||typeof meta==='string';if(isRoot){meta={textures:{},images:{}};}var data={metadata:{version:4.5,type:'Material',generator:'Material.toJSON'}};// standard Material serialization
data.uuid=this.uuid;data.type=this.type;if(this.name!=='')data.name=this.name;if(this.color&&this.color.isColor)data.color=this.color.getHex();if(this.roughness!==undefined)data.roughness=this.roughness;if(this.metalness!==undefined)data.metalness=this.metalness;if(this.sheen&&this.sheen.isColor)data.sheen=this.sheen.getHex();if(this.emissive&&this.emissive.isColor)data.emissive=this.emissive.getHex();if(this.emissiveIntensity&&this.emissiveIntensity!==1)data.emissiveIntensity=this.emissiveIntensity;if(this.specular&&this.specular.isColor)data.specular=this.specular.getHex();if(this.shininess!==undefined)data.shininess=this.shininess;if(this.clearcoat!==undefined)data.clearcoat=this.clearcoat;if(this.clearcoatRoughness!==undefined)data.clearcoatRoughness=this.clearcoatRoughness;if(this.clearcoatMap&&this.clearcoatMap.isTexture){data.clearcoatMap=this.clearcoatMap.toJSON(meta).uuid;}if(this.clearcoatRoughnessMap&&this.clearcoatRoughnessMap.isTexture){data.clearcoatRoughnessMap=this.clearcoatRoughnessMap.toJSON(meta).uuid;}if(this.clearcoatNormalMap&&this.clearcoatNormalMap.isTexture){data.clearcoatNormalMap=this.clearcoatNormalMap.toJSON(meta).uuid;data.clearcoatNormalScale=this.clearcoatNormalScale.toArray();}if(this.map&&this.map.isTexture)data.map=this.map.toJSON(meta).uuid;if(this.matcap&&this.matcap.isTexture)data.matcap=this.matcap.toJSON(meta).uuid;if(this.alphaMap&&this.alphaMap.isTexture)data.alphaMap=this.alphaMap.toJSON(meta).uuid;if(this.lightMap&&this.lightMap.isTexture)data.lightMap=this.lightMap.toJSON(meta).uuid;if(this.aoMap&&this.aoMap.isTexture){data.aoMap=this.aoMap.toJSON(meta).uuid;data.aoMapIntensity=this.aoMapIntensity;}if(this.bumpMap&&this.bumpMap.isTexture){data.bumpMap=this.bumpMap.toJSON(meta).uuid;data.bumpScale=this.bumpScale;}if(this.normalMap&&this.normalMap.isTexture){data.normalMap=this.normalMap.toJSON(meta).uuid;data.normalMapType=this.normalMapType;data.normalScale=this.normalScale.toArray();}if(this.displacementMap&&this.displacementMap.isTexture){data.displacementMap=this.displacementMap.toJSON(meta).uuid;data.displacementScale=this.displacementScale;data.displacementBias=this.displacementBias;}if(this.roughnessMap&&this.roughnessMap.isTexture)data.roughnessMap=this.roughnessMap.toJSON(meta).uuid;if(this.metalnessMap&&this.metalnessMap.isTexture)data.metalnessMap=this.metalnessMap.toJSON(meta).uuid;if(this.emissiveMap&&this.emissiveMap.isTexture)data.emissiveMap=this.emissiveMap.toJSON(meta).uuid;if(this.specularMap&&this.specularMap.isTexture)data.specularMap=this.specularMap.toJSON(meta).uuid;if(this.envMap&&this.envMap.isTexture){data.envMap=this.envMap.toJSON(meta).uuid;data.reflectivity=this.reflectivity;// Scale behind envMap
data.refractionRatio=this.refractionRatio;if(this.combine!==undefined)data.combine=this.combine;if(this.envMapIntensity!==undefined)data.envMapIntensity=this.envMapIntensity;}if(this.gradientMap&&this.gradientMap.isTexture){data.gradientMap=this.gradientMap.toJSON(meta).uuid;}if(this.size!==undefined)data.size=this.size;if(this.sizeAttenuation!==undefined)data.sizeAttenuation=this.sizeAttenuation;if(this.blending!==NormalBlending)data.blending=this.blending;if(this.flatShading===true)data.flatShading=this.flatShading;if(this.side!==FrontSide)data.side=this.side;if(this.vertexColors)data.vertexColors=true;if(this.opacity<1)data.opacity=this.opacity;if(this.transparent===true)data.transparent=this.transparent;data.depthFunc=this.depthFunc;data.depthTest=this.depthTest;data.depthWrite=this.depthWrite;data.stencilWrite=this.stencilWrite;data.stencilWriteMask=this.stencilWriteMask;data.stencilFunc=this.stencilFunc;data.stencilRef=this.stencilRef;data.stencilFuncMask=this.stencilFuncMask;data.stencilFail=this.stencilFail;data.stencilZFail=this.stencilZFail;data.stencilZPass=this.stencilZPass;// rotation (SpriteMaterial)
if(this.rotation&&this.rotation!==0)data.rotation=this.rotation;if(this.polygonOffset===true)data.polygonOffset=true;if(this.polygonOffsetFactor!==0)data.polygonOffsetFactor=this.polygonOffsetFactor;if(this.polygonOffsetUnits!==0)data.polygonOffsetUnits=this.polygonOffsetUnits;if(this.linewidth&&this.linewidth!==1)data.linewidth=this.linewidth;if(this.dashSize!==undefined)data.dashSize=this.dashSize;if(this.gapSize!==undefined)data.gapSize=this.gapSize;if(this.scale!==undefined)data.scale=this.scale;if(this.dithering===true)data.dithering=true;if(this.alphaTest>0)data.alphaTest=this.alphaTest;if(this.premultipliedAlpha===true)data.premultipliedAlpha=this.premultipliedAlpha;if(this.wireframe===true)data.wireframe=this.wireframe;if(this.wireframeLinewidth>1)data.wireframeLinewidth=this.wireframeLinewidth;if(this.wireframeLinecap!=='round')data.wireframeLinecap=this.wireframeLinecap;if(this.wireframeLinejoin!=='round')data.wireframeLinejoin=this.wireframeLinejoin;if(this.morphTargets===true)data.morphTargets=true;if(this.morphNormals===true)data.morphNormals=true;if(this.skinning===true)data.skinning=true;if(this.visible===false)data.visible=false;if(this.toneMapped===false)data.toneMapped=false;if(JSON.stringify(this.userData)!=='{}')data.userData=this.userData;// TODO: Copied from Object3D.toJSON
function extractFromCache(cache){var values=[];for(var key in cache){var _data=cache[key];delete _data.metadata;values.push(_data);}return values;}if(isRoot){var textures=extractFromCache(meta.textures);var images=extractFromCache(meta.images);if(textures.length>0)data.textures=textures;if(images.length>0)data.images=images;}return data;},clone:function clone(){return new this.constructor().copy(this);},copy:function copy(source){this.name=source.name;this.fog=source.fog;this.blending=source.blending;this.side=source.side;this.flatShading=source.flatShading;this.vertexColors=source.vertexColors;this.opacity=source.opacity;this.transparent=source.transparent;this.blendSrc=source.blendSrc;this.blendDst=source.blendDst;this.blendEquation=source.blendEquation;this.blendSrcAlpha=source.blendSrcAlpha;this.blendDstAlpha=source.blendDstAlpha;this.blendEquationAlpha=source.blendEquationAlpha;this.depthFunc=source.depthFunc;this.depthTest=source.depthTest;this.depthWrite=source.depthWrite;this.stencilWriteMask=source.stencilWriteMask;this.stencilFunc=source.stencilFunc;this.stencilRef=source.stencilRef;this.stencilFuncMask=source.stencilFuncMask;this.stencilFail=source.stencilFail;this.stencilZFail=source.stencilZFail;this.stencilZPass=source.stencilZPass;this.stencilWrite=source.stencilWrite;var srcPlanes=source.clippingPlanes;var dstPlanes=null;if(srcPlanes!==null){var n=srcPlanes.length;dstPlanes=new Array(n);for(var _i27=0;_i27!==n;++_i27){dstPlanes[_i27]=srcPlanes[_i27].clone();}}this.clippingPlanes=dstPlanes;this.clipIntersection=source.clipIntersection;this.clipShadows=source.clipShadows;this.shadowSide=source.shadowSide;this.colorWrite=source.colorWrite;this.precision=source.precision;this.polygonOffset=source.polygonOffset;this.polygonOffsetFactor=source.polygonOffsetFactor;this.polygonOffsetUnits=source.polygonOffsetUnits;this.dithering=source.dithering;this.alphaTest=source.alphaTest;this.premultipliedAlpha=source.premultipliedAlpha;this.visible=source.visible;this.toneMapped=source.toneMapped;this.userData=JSON.parse(JSON.stringify(source.userData));return this;},dispose:function dispose(){this.dispatchEvent({type:'dispose'});}});Object.defineProperty(Material.prototype,'needsUpdate',{set:function set(value){if(value===true)this.version++;}});/**
 * parameters = {
 *  color: <hex>,
 *  opacity: <float>,
 *  map: new THREE.Texture( <Image> ),
 *
 *  lightMap: new THREE.Texture( <Image> ),
 *  lightMapIntensity: <float>
 *
 *  aoMap: new THREE.Texture( <Image> ),
 *  aoMapIntensity: <float>
 *
 *  specularMap: new THREE.Texture( <Image> ),
 *
 *  alphaMap: new THREE.Texture( <Image> ),
 *
 *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
 *  combine: THREE.Multiply,
 *  reflectivity: <float>,
 *  refractionRatio: <float>,
 *
 *  depthTest: <bool>,
 *  depthWrite: <bool>,
 *
 *  wireframe: <boolean>,
 *  wireframeLinewidth: <float>,
 *
 *  skinning: <bool>,
 *  morphTargets: <bool>
 * }
 */function MeshBasicMaterial(parameters){Material.call(this);this.type='MeshBasicMaterial';this.color=new Color(0xffffff);// emissive
this.map=null;this.lightMap=null;this.lightMapIntensity=1.0;this.aoMap=null;this.aoMapIntensity=1.0;this.specularMap=null;this.alphaMap=null;this.envMap=null;this.combine=MultiplyOperation;this.reflectivity=1;this.refractionRatio=0.98;this.wireframe=false;this.wireframeLinewidth=1;this.wireframeLinecap='round';this.wireframeLinejoin='round';this.skinning=false;this.morphTargets=false;this.setValues(parameters);}MeshBasicMaterial.prototype=Object.create(Material.prototype);MeshBasicMaterial.prototype.constructor=MeshBasicMaterial;MeshBasicMaterial.prototype.isMeshBasicMaterial=true;MeshBasicMaterial.prototype.copy=function(source){Material.prototype.copy.call(this,source);this.color.copy(source.color);this.map=source.map;this.lightMap=source.lightMap;this.lightMapIntensity=source.lightMapIntensity;this.aoMap=source.aoMap;this.aoMapIntensity=source.aoMapIntensity;this.specularMap=source.specularMap;this.alphaMap=source.alphaMap;this.envMap=source.envMap;this.combine=source.combine;this.reflectivity=source.reflectivity;this.refractionRatio=source.refractionRatio;this.wireframe=source.wireframe;this.wireframeLinewidth=source.wireframeLinewidth;this.wireframeLinecap=source.wireframeLinecap;this.wireframeLinejoin=source.wireframeLinejoin;this.skinning=source.skinning;this.morphTargets=source.morphTargets;return this;};var _vector$3=new Vector3();var _vector2$1=new Vector2();function BufferAttribute(array,itemSize,normalized){if(Array.isArray(array)){throw new TypeError('THREE.BufferAttribute: array should be a Typed Array.');}this.name='';this.array=array;this.itemSize=itemSize;this.count=array!==undefined?array.length/itemSize:0;this.normalized=normalized===true;this.usage=StaticDrawUsage;this.updateRange={offset:0,count:-1};this.version=0;}Object.defineProperty(BufferAttribute.prototype,'needsUpdate',{set:function set(value){if(value===true)this.version++;}});Object.assign(BufferAttribute.prototype,{isBufferAttribute:true,onUploadCallback:function onUploadCallback(){},setUsage:function setUsage(value){this.usage=value;return this;},copy:function copy(source){this.name=source.name;this.array=new source.array.constructor(source.array);this.itemSize=source.itemSize;this.count=source.count;this.normalized=source.normalized;this.usage=source.usage;return this;},copyAt:function copyAt(index1,attribute,index2){index1*=this.itemSize;index2*=attribute.itemSize;for(var _i28=0,l=this.itemSize;_i28<l;_i28++){this.array[index1+_i28]=attribute.array[index2+_i28];}return this;},copyArray:function copyArray(array){this.array.set(array);return this;},copyColorsArray:function copyColorsArray(colors){var array=this.array;var offset=0;for(var _i29=0,l=colors.length;_i29<l;_i29++){var color=colors[_i29];if(color===undefined){console.warn('THREE.BufferAttribute.copyColorsArray(): color is undefined',_i29);color=new Color();}array[offset++]=color.r;array[offset++]=color.g;array[offset++]=color.b;}return this;},copyVector2sArray:function copyVector2sArray(vectors){var array=this.array;var offset=0;for(var _i30=0,l=vectors.length;_i30<l;_i30++){var vector=vectors[_i30];if(vector===undefined){console.warn('THREE.BufferAttribute.copyVector2sArray(): vector is undefined',_i30);vector=new Vector2();}array[offset++]=vector.x;array[offset++]=vector.y;}return this;},copyVector3sArray:function copyVector3sArray(vectors){var array=this.array;var offset=0;for(var _i31=0,l=vectors.length;_i31<l;_i31++){var vector=vectors[_i31];if(vector===undefined){console.warn('THREE.BufferAttribute.copyVector3sArray(): vector is undefined',_i31);vector=new Vector3();}array[offset++]=vector.x;array[offset++]=vector.y;array[offset++]=vector.z;}return this;},copyVector4sArray:function copyVector4sArray(vectors){var array=this.array;var offset=0;for(var _i32=0,l=vectors.length;_i32<l;_i32++){var vector=vectors[_i32];if(vector===undefined){console.warn('THREE.BufferAttribute.copyVector4sArray(): vector is undefined',_i32);vector=new Vector4();}array[offset++]=vector.x;array[offset++]=vector.y;array[offset++]=vector.z;array[offset++]=vector.w;}return this;},applyMatrix3:function applyMatrix3(m){if(this.itemSize===2){for(var _i33=0,l=this.count;_i33<l;_i33++){_vector2$1.fromBufferAttribute(this,_i33);_vector2$1.applyMatrix3(m);this.setXY(_i33,_vector2$1.x,_vector2$1.y);}}else if(this.itemSize===3){for(var _i34=0,_l2=this.count;_i34<_l2;_i34++){_vector$3.fromBufferAttribute(this,_i34);_vector$3.applyMatrix3(m);this.setXYZ(_i34,_vector$3.x,_vector$3.y,_vector$3.z);}}return this;},applyMatrix4:function applyMatrix4(m){for(var _i35=0,l=this.count;_i35<l;_i35++){_vector$3.x=this.getX(_i35);_vector$3.y=this.getY(_i35);_vector$3.z=this.getZ(_i35);_vector$3.applyMatrix4(m);this.setXYZ(_i35,_vector$3.x,_vector$3.y,_vector$3.z);}return this;},applyNormalMatrix:function applyNormalMatrix(m){for(var _i36=0,l=this.count;_i36<l;_i36++){_vector$3.x=this.getX(_i36);_vector$3.y=this.getY(_i36);_vector$3.z=this.getZ(_i36);_vector$3.applyNormalMatrix(m);this.setXYZ(_i36,_vector$3.x,_vector$3.y,_vector$3.z);}return this;},transformDirection:function transformDirection(m){for(var _i37=0,l=this.count;_i37<l;_i37++){_vector$3.x=this.getX(_i37);_vector$3.y=this.getY(_i37);_vector$3.z=this.getZ(_i37);_vector$3.transformDirection(m);this.setXYZ(_i37,_vector$3.x,_vector$3.y,_vector$3.z);}return this;},set:function set(value){var offset=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;this.array.set(value,offset);return this;},getX:function getX(index){return this.array[index*this.itemSize];},setX:function setX(index,x){this.array[index*this.itemSize]=x;return this;},getY:function getY(index){return this.array[index*this.itemSize+1];},setY:function setY(index,y){this.array[index*this.itemSize+1]=y;return this;},getZ:function getZ(index){return this.array[index*this.itemSize+2];},setZ:function setZ(index,z){this.array[index*this.itemSize+2]=z;return this;},getW:function getW(index){return this.array[index*this.itemSize+3];},setW:function setW(index,w){this.array[index*this.itemSize+3]=w;return this;},setXY:function setXY(index,x,y){index*=this.itemSize;this.array[index+0]=x;this.array[index+1]=y;return this;},setXYZ:function setXYZ(index,x,y,z){index*=this.itemSize;this.array[index+0]=x;this.array[index+1]=y;this.array[index+2]=z;return this;},setXYZW:function setXYZW(index,x,y,z,w){index*=this.itemSize;this.array[index+0]=x;this.array[index+1]=y;this.array[index+2]=z;this.array[index+3]=w;return this;},onUpload:function onUpload(callback){this.onUploadCallback=callback;return this;},clone:function clone(){return new this.constructor(this.array,this.itemSize).copy(this);},toJSON:function toJSON(){return {itemSize:this.itemSize,type:this.array.constructor.name,array:Array.prototype.slice.call(this.array),normalized:this.normalized};}});//
function Int8BufferAttribute(array,itemSize,normalized){BufferAttribute.call(this,new Int8Array(array),itemSize,normalized);}Int8BufferAttribute.prototype=Object.create(BufferAttribute.prototype);Int8BufferAttribute.prototype.constructor=Int8BufferAttribute;function Uint8BufferAttribute(array,itemSize,normalized){BufferAttribute.call(this,new Uint8Array(array),itemSize,normalized);}Uint8BufferAttribute.prototype=Object.create(BufferAttribute.prototype);Uint8BufferAttribute.prototype.constructor=Uint8BufferAttribute;function Uint8ClampedBufferAttribute(array,itemSize,normalized){BufferAttribute.call(this,new Uint8ClampedArray(array),itemSize,normalized);}Uint8ClampedBufferAttribute.prototype=Object.create(BufferAttribute.prototype);Uint8ClampedBufferAttribute.prototype.constructor=Uint8ClampedBufferAttribute;function Int16BufferAttribute(array,itemSize,normalized){BufferAttribute.call(this,new Int16Array(array),itemSize,normalized);}Int16BufferAttribute.prototype=Object.create(BufferAttribute.prototype);Int16BufferAttribute.prototype.constructor=Int16BufferAttribute;function Uint16BufferAttribute(array,itemSize,normalized){BufferAttribute.call(this,new Uint16Array(array),itemSize,normalized);}Uint16BufferAttribute.prototype=Object.create(BufferAttribute.prototype);Uint16BufferAttribute.prototype.constructor=Uint16BufferAttribute;function Int32BufferAttribute(array,itemSize,normalized){BufferAttribute.call(this,new Int32Array(array),itemSize,normalized);}Int32BufferAttribute.prototype=Object.create(BufferAttribute.prototype);Int32BufferAttribute.prototype.constructor=Int32BufferAttribute;function Uint32BufferAttribute(array,itemSize,normalized){BufferAttribute.call(this,new Uint32Array(array),itemSize,normalized);}Uint32BufferAttribute.prototype=Object.create(BufferAttribute.prototype);Uint32BufferAttribute.prototype.constructor=Uint32BufferAttribute;function Float16BufferAttribute(array,itemSize,normalized){BufferAttribute.call(this,new Uint16Array(array),itemSize,normalized);}Float16BufferAttribute.prototype=Object.create(BufferAttribute.prototype);Float16BufferAttribute.prototype.constructor=Float16BufferAttribute;Float16BufferAttribute.prototype.isFloat16BufferAttribute=true;function Float32BufferAttribute(array,itemSize,normalized){BufferAttribute.call(this,new Float32Array(array),itemSize,normalized);}Float32BufferAttribute.prototype=Object.create(BufferAttribute.prototype);Float32BufferAttribute.prototype.constructor=Float32BufferAttribute;function Float64BufferAttribute(array,itemSize,normalized){BufferAttribute.call(this,new Float64Array(array),itemSize,normalized);}Float64BufferAttribute.prototype=Object.create(BufferAttribute.prototype);Float64BufferAttribute.prototype.constructor=Float64BufferAttribute;class DirectGeometry{constructor(){this.vertices=[];this.normals=[];this.colors=[];this.uvs=[];this.uvs2=[];this.groups=[];this.morphTargets={};this.skinWeights=[];this.skinIndices=[];// this.lineDistances = [];
this.boundingBox=null;this.boundingSphere=null;// update flags
this.verticesNeedUpdate=false;this.normalsNeedUpdate=false;this.colorsNeedUpdate=false;this.uvsNeedUpdate=false;this.groupsNeedUpdate=false;}computeGroups(geometry){var groups=[];var group,i;var materialIndex=undefined;var faces=geometry.faces;for(i=0;i<faces.length;i++){var face=faces[i];// materials
if(face.materialIndex!==materialIndex){materialIndex=face.materialIndex;if(group!==undefined){group.count=i*3-group.start;groups.push(group);}group={start:i*3,materialIndex:materialIndex};}}if(group!==undefined){group.count=i*3-group.start;groups.push(group);}this.groups=groups;}fromGeometry(geometry){var faces=geometry.faces;var vertices=geometry.vertices;var faceVertexUvs=geometry.faceVertexUvs;var hasFaceVertexUv=faceVertexUvs[0]&&faceVertexUvs[0].length>0;var hasFaceVertexUv2=faceVertexUvs[1]&&faceVertexUvs[1].length>0;// morphs
var morphTargets=geometry.morphTargets;var morphTargetsLength=morphTargets.length;var morphTargetsPosition;if(morphTargetsLength>0){morphTargetsPosition=[];for(var _i38=0;_i38<morphTargetsLength;_i38++){morphTargetsPosition[_i38]={name:morphTargets[_i38].name,data:[]};}this.morphTargets.position=morphTargetsPosition;}var morphNormals=geometry.morphNormals;var morphNormalsLength=morphNormals.length;var morphTargetsNormal;if(morphNormalsLength>0){morphTargetsNormal=[];for(var _i39=0;_i39<morphNormalsLength;_i39++){morphTargetsNormal[_i39]={name:morphNormals[_i39].name,data:[]};}this.morphTargets.normal=morphTargetsNormal;}// skins
var skinIndices=geometry.skinIndices;var skinWeights=geometry.skinWeights;var hasSkinIndices=skinIndices.length===vertices.length;var hasSkinWeights=skinWeights.length===vertices.length;//
if(vertices.length>0&&faces.length===0){console.error('THREE.DirectGeometry: Faceless geometries are not supported.');}for(var _i40=0;_i40<faces.length;_i40++){var face=faces[_i40];this.vertices.push(vertices[face.a],vertices[face.b],vertices[face.c]);var vertexNormals=face.vertexNormals;if(vertexNormals.length===3){this.normals.push(vertexNormals[0],vertexNormals[1],vertexNormals[2]);}else {var normal=face.normal;this.normals.push(normal,normal,normal);}var vertexColors=face.vertexColors;if(vertexColors.length===3){this.colors.push(vertexColors[0],vertexColors[1],vertexColors[2]);}else {var color=face.color;this.colors.push(color,color,color);}if(hasFaceVertexUv===true){var vertexUvs=faceVertexUvs[0][_i40];if(vertexUvs!==undefined){this.uvs.push(vertexUvs[0],vertexUvs[1],vertexUvs[2]);}else {console.warn('THREE.DirectGeometry.fromGeometry(): Undefined vertexUv ',_i40);this.uvs.push(new Vector2(),new Vector2(),new Vector2());}}if(hasFaceVertexUv2===true){var _vertexUvs=faceVertexUvs[1][_i40];if(_vertexUvs!==undefined){this.uvs2.push(_vertexUvs[0],_vertexUvs[1],_vertexUvs[2]);}else {console.warn('THREE.DirectGeometry.fromGeometry(): Undefined vertexUv2 ',_i40);this.uvs2.push(new Vector2(),new Vector2(),new Vector2());}}// morphs
for(var j=0;j<morphTargetsLength;j++){var morphTarget=morphTargets[j].vertices;morphTargetsPosition[j].data.push(morphTarget[face.a],morphTarget[face.b],morphTarget[face.c]);}for(var _j=0;_j<morphNormalsLength;_j++){var morphNormal=morphNormals[_j].vertexNormals[_i40];morphTargetsNormal[_j].data.push(morphNormal.a,morphNormal.b,morphNormal.c);}// skins
if(hasSkinIndices){this.skinIndices.push(skinIndices[face.a],skinIndices[face.b],skinIndices[face.c]);}if(hasSkinWeights){this.skinWeights.push(skinWeights[face.a],skinWeights[face.b],skinWeights[face.c]);}}this.computeGroups(geometry);this.verticesNeedUpdate=geometry.verticesNeedUpdate;this.normalsNeedUpdate=geometry.normalsNeedUpdate;this.colorsNeedUpdate=geometry.colorsNeedUpdate;this.uvsNeedUpdate=geometry.uvsNeedUpdate;this.groupsNeedUpdate=geometry.groupsNeedUpdate;if(geometry.boundingSphere!==null){this.boundingSphere=geometry.boundingSphere.clone();}if(geometry.boundingBox!==null){this.boundingBox=geometry.boundingBox.clone();}return this;}}function arrayMax(array){if(array.length===0)return -Infinity;var max=array[0];for(var _i41=1,l=array.length;_i41<l;++_i41){if(array[_i41]>max)max=array[_i41];}return max;}var TYPED_ARRAYS={Int8Array:Int8Array,Uint8Array:Uint8Array,// Workaround for IE11 pre KB2929437. See #11440
Uint8ClampedArray:typeof Uint8ClampedArray!=='undefined'?Uint8ClampedArray:Uint8Array,Int16Array:Int16Array,Uint16Array:Uint16Array,Int32Array:Int32Array,Uint32Array:Uint32Array,Float32Array:Float32Array,Float64Array:Float64Array};function getTypedArray(type,buffer){return new TYPED_ARRAYS[type](buffer);}var _bufferGeometryId=1;// BufferGeometry uses odd numbers as Id
var _m1$2=new Matrix4();var _obj=new Object3D();var _offset=new Vector3();var _box$2=new Box3();var _boxMorphTargets=new Box3();var _vector$4=new Vector3();function BufferGeometry(){Object.defineProperty(this,'id',{value:_bufferGeometryId+=2});this.uuid=MathUtils.generateUUID();this.name='';this.type='BufferGeometry';this.index=null;this.attributes={};this.morphAttributes={};this.morphTargetsRelative=false;this.groups=[];this.boundingBox=null;this.boundingSphere=null;this.drawRange={start:0,count:Infinity};this.userData={};}BufferGeometry.prototype=Object.assign(Object.create(EventDispatcher.prototype),{constructor:BufferGeometry,isBufferGeometry:true,getIndex:function getIndex(){return this.index;},setIndex:function setIndex(index){if(Array.isArray(index)){this.index=new(arrayMax(index)>65535?Uint32BufferAttribute:Uint16BufferAttribute)(index,1);}else {this.index=index;}return this;},getAttribute:function getAttribute(name){return this.attributes[name];},setAttribute:function setAttribute(name,attribute){this.attributes[name]=attribute;return this;},deleteAttribute:function deleteAttribute(name){delete this.attributes[name];return this;},hasAttribute:function hasAttribute(name){return this.attributes[name]!==undefined;},addGroup:function addGroup(start,count){var materialIndex=arguments.length>2&&arguments[2]!==undefined?arguments[2]:0;this.groups.push({start:start,count:count,materialIndex:materialIndex});},clearGroups:function clearGroups(){this.groups=[];},setDrawRange:function setDrawRange(start,count){this.drawRange.start=start;this.drawRange.count=count;},applyMatrix4:function applyMatrix4(matrix){var position=this.attributes.position;if(position!==undefined){position.applyMatrix4(matrix);position.needsUpdate=true;}var normal=this.attributes.normal;if(normal!==undefined){var normalMatrix=new Matrix3().getNormalMatrix(matrix);normal.applyNormalMatrix(normalMatrix);normal.needsUpdate=true;}var tangent=this.attributes.tangent;if(tangent!==undefined){tangent.transformDirection(matrix);tangent.needsUpdate=true;}if(this.boundingBox!==null){this.computeBoundingBox();}if(this.boundingSphere!==null){this.computeBoundingSphere();}return this;},rotateX:function rotateX(angle){// rotate geometry around world x-axis
_m1$2.makeRotationX(angle);this.applyMatrix4(_m1$2);return this;},rotateY:function rotateY(angle){// rotate geometry around world y-axis
_m1$2.makeRotationY(angle);this.applyMatrix4(_m1$2);return this;},rotateZ:function rotateZ(angle){// rotate geometry around world z-axis
_m1$2.makeRotationZ(angle);this.applyMatrix4(_m1$2);return this;},translate:function translate(x,y,z){// translate geometry
_m1$2.makeTranslation(x,y,z);this.applyMatrix4(_m1$2);return this;},scale:function scale(x,y,z){// scale geometry
_m1$2.makeScale(x,y,z);this.applyMatrix4(_m1$2);return this;},lookAt:function lookAt(vector){_obj.lookAt(vector);_obj.updateMatrix();this.applyMatrix4(_obj.matrix);return this;},center:function center(){this.computeBoundingBox();this.boundingBox.getCenter(_offset).negate();this.translate(_offset.x,_offset.y,_offset.z);return this;},setFromObject:function setFromObject(object){// console.log( 'THREE.BufferGeometry.setFromObject(). Converting', object, this );
var geometry=object.geometry;if(object.isPoints||object.isLine){var positions=new Float32BufferAttribute(geometry.vertices.length*3,3);var colors=new Float32BufferAttribute(geometry.colors.length*3,3);this.setAttribute('position',positions.copyVector3sArray(geometry.vertices));this.setAttribute('color',colors.copyColorsArray(geometry.colors));if(geometry.lineDistances&&geometry.lineDistances.length===geometry.vertices.length){var lineDistances=new Float32BufferAttribute(geometry.lineDistances.length,1);this.setAttribute('lineDistance',lineDistances.copyArray(geometry.lineDistances));}if(geometry.boundingSphere!==null){this.boundingSphere=geometry.boundingSphere.clone();}if(geometry.boundingBox!==null){this.boundingBox=geometry.boundingBox.clone();}}else if(object.isMesh){if(geometry&&geometry.isGeometry){this.fromGeometry(geometry);}}return this;},setFromPoints:function setFromPoints(points){var position=[];for(var _i42=0,l=points.length;_i42<l;_i42++){var point=points[_i42];position.push(point.x,point.y,point.z||0);}this.setAttribute('position',new Float32BufferAttribute(position,3));return this;},updateFromObject:function updateFromObject(object){var geometry=object.geometry;if(object.isMesh){var direct=geometry.__directGeometry;if(geometry.elementsNeedUpdate===true){direct=undefined;geometry.elementsNeedUpdate=false;}if(direct===undefined){return this.fromGeometry(geometry);}direct.verticesNeedUpdate=geometry.verticesNeedUpdate;direct.normalsNeedUpdate=geometry.normalsNeedUpdate;direct.colorsNeedUpdate=geometry.colorsNeedUpdate;direct.uvsNeedUpdate=geometry.uvsNeedUpdate;direct.groupsNeedUpdate=geometry.groupsNeedUpdate;geometry.verticesNeedUpdate=false;geometry.normalsNeedUpdate=false;geometry.colorsNeedUpdate=false;geometry.uvsNeedUpdate=false;geometry.groupsNeedUpdate=false;geometry=direct;}if(geometry.verticesNeedUpdate===true){var attribute=this.attributes.position;if(attribute!==undefined){attribute.copyVector3sArray(geometry.vertices);attribute.needsUpdate=true;}geometry.verticesNeedUpdate=false;}if(geometry.normalsNeedUpdate===true){var _attribute=this.attributes.normal;if(_attribute!==undefined){_attribute.copyVector3sArray(geometry.normals);_attribute.needsUpdate=true;}geometry.normalsNeedUpdate=false;}if(geometry.colorsNeedUpdate===true){var _attribute2=this.attributes.color;if(_attribute2!==undefined){_attribute2.copyColorsArray(geometry.colors);_attribute2.needsUpdate=true;}geometry.colorsNeedUpdate=false;}if(geometry.uvsNeedUpdate){var _attribute3=this.attributes.uv;if(_attribute3!==undefined){_attribute3.copyVector2sArray(geometry.uvs);_attribute3.needsUpdate=true;}geometry.uvsNeedUpdate=false;}if(geometry.lineDistancesNeedUpdate){var _attribute4=this.attributes.lineDistance;if(_attribute4!==undefined){_attribute4.copyArray(geometry.lineDistances);_attribute4.needsUpdate=true;}geometry.lineDistancesNeedUpdate=false;}if(geometry.groupsNeedUpdate){geometry.computeGroups(object.geometry);this.groups=geometry.groups;geometry.groupsNeedUpdate=false;}return this;},fromGeometry:function fromGeometry(geometry){geometry.__directGeometry=new DirectGeometry().fromGeometry(geometry);return this.fromDirectGeometry(geometry.__directGeometry);},fromDirectGeometry:function fromDirectGeometry(geometry){var positions=new Float32Array(geometry.vertices.length*3);this.setAttribute('position',new BufferAttribute(positions,3).copyVector3sArray(geometry.vertices));if(geometry.normals.length>0){var normals=new Float32Array(geometry.normals.length*3);this.setAttribute('normal',new BufferAttribute(normals,3).copyVector3sArray(geometry.normals));}if(geometry.colors.length>0){var colors=new Float32Array(geometry.colors.length*3);this.setAttribute('color',new BufferAttribute(colors,3).copyColorsArray(geometry.colors));}if(geometry.uvs.length>0){var uvs=new Float32Array(geometry.uvs.length*2);this.setAttribute('uv',new BufferAttribute(uvs,2).copyVector2sArray(geometry.uvs));}if(geometry.uvs2.length>0){var uvs2=new Float32Array(geometry.uvs2.length*2);this.setAttribute('uv2',new BufferAttribute(uvs2,2).copyVector2sArray(geometry.uvs2));}// groups
this.groups=geometry.groups;// morphs
for(var name in geometry.morphTargets){var array=[];var morphTargets=geometry.morphTargets[name];for(var _i43=0,l=morphTargets.length;_i43<l;_i43++){var morphTarget=morphTargets[_i43];var attribute=new Float32BufferAttribute(morphTarget.data.length*3,3);attribute.name=morphTarget.name;array.push(attribute.copyVector3sArray(morphTarget.data));}this.morphAttributes[name]=array;}// skinning
if(geometry.skinIndices.length>0){var skinIndices=new Float32BufferAttribute(geometry.skinIndices.length*4,4);this.setAttribute('skinIndex',skinIndices.copyVector4sArray(geometry.skinIndices));}if(geometry.skinWeights.length>0){var skinWeights=new Float32BufferAttribute(geometry.skinWeights.length*4,4);this.setAttribute('skinWeight',skinWeights.copyVector4sArray(geometry.skinWeights));}//
if(geometry.boundingSphere!==null){this.boundingSphere=geometry.boundingSphere.clone();}if(geometry.boundingBox!==null){this.boundingBox=geometry.boundingBox.clone();}return this;},computeBoundingBox:function computeBoundingBox(){if(this.boundingBox===null){this.boundingBox=new Box3();}var position=this.attributes.position;var morphAttributesPosition=this.morphAttributes.position;if(position&&position.isGLBufferAttribute){console.error('THREE.BufferGeometry.computeBoundingBox(): GLBufferAttribute requires a manual bounding box. Alternatively set "mesh.frustumCulled" to "false".',this);this.boundingBox.set(new Vector3(-Infinity,-Infinity,-Infinity),new Vector3(+Infinity,+Infinity,+Infinity));return;}if(position!==undefined){this.boundingBox.setFromBufferAttribute(position);// process morph attributes if present
if(morphAttributesPosition){for(var _i44=0,il=morphAttributesPosition.length;_i44<il;_i44++){var morphAttribute=morphAttributesPosition[_i44];_box$2.setFromBufferAttribute(morphAttribute);if(this.morphTargetsRelative){_vector$4.addVectors(this.boundingBox.min,_box$2.min);this.boundingBox.expandByPoint(_vector$4);_vector$4.addVectors(this.boundingBox.max,_box$2.max);this.boundingBox.expandByPoint(_vector$4);}else {this.boundingBox.expandByPoint(_box$2.min);this.boundingBox.expandByPoint(_box$2.max);}}}}else {this.boundingBox.makeEmpty();}if(isNaN(this.boundingBox.min.x)||isNaN(this.boundingBox.min.y)||isNaN(this.boundingBox.min.z)){console.error('THREE.BufferGeometry.computeBoundingBox(): Computed min/max have NaN values. The "position" attribute is likely to have NaN values.',this);}},computeBoundingSphere:function computeBoundingSphere(){if(this.boundingSphere===null){this.boundingSphere=new Sphere();}var position=this.attributes.position;var morphAttributesPosition=this.morphAttributes.position;if(position&&position.isGLBufferAttribute){console.error('THREE.BufferGeometry.computeBoundingSphere(): GLBufferAttribute requires a manual bounding sphere. Alternatively set "mesh.frustumCulled" to "false".',this);this.boundingSphere.set(new Vector3(),Infinity);return;}if(position){// first, find the center of the bounding sphere
var center=this.boundingSphere.center;_box$2.setFromBufferAttribute(position);// process morph attributes if present
if(morphAttributesPosition){for(var _i45=0,il=morphAttributesPosition.length;_i45<il;_i45++){var morphAttribute=morphAttributesPosition[_i45];_boxMorphTargets.setFromBufferAttribute(morphAttribute);if(this.morphTargetsRelative){_vector$4.addVectors(_box$2.min,_boxMorphTargets.min);_box$2.expandByPoint(_vector$4);_vector$4.addVectors(_box$2.max,_boxMorphTargets.max);_box$2.expandByPoint(_vector$4);}else {_box$2.expandByPoint(_boxMorphTargets.min);_box$2.expandByPoint(_boxMorphTargets.max);}}}_box$2.getCenter(center);// second, try to find a boundingSphere with a radius smaller than the
// boundingSphere of the boundingBox: sqrt(3) smaller in the best case
var maxRadiusSq=0;for(var _i46=0,_il2=position.count;_i46<_il2;_i46++){_vector$4.fromBufferAttribute(position,_i46);maxRadiusSq=Math.max(maxRadiusSq,center.distanceToSquared(_vector$4));}// process morph attributes if present
if(morphAttributesPosition){for(var _i47=0,_il3=morphAttributesPosition.length;_i47<_il3;_i47++){var _morphAttribute=morphAttributesPosition[_i47];var morphTargetsRelative=this.morphTargetsRelative;for(var j=0,jl=_morphAttribute.count;j<jl;j++){_vector$4.fromBufferAttribute(_morphAttribute,j);if(morphTargetsRelative){_offset.fromBufferAttribute(position,j);_vector$4.add(_offset);}maxRadiusSq=Math.max(maxRadiusSq,center.distanceToSquared(_vector$4));}}}this.boundingSphere.radius=Math.sqrt(maxRadiusSq);if(isNaN(this.boundingSphere.radius)){console.error('THREE.BufferGeometry.computeBoundingSphere(): Computed radius is NaN. The "position" attribute is likely to have NaN values.',this);}}},computeFaceNormals:function computeFaceNormals(){// backwards compatibility
},computeVertexNormals:function computeVertexNormals(){var index=this.index;var positionAttribute=this.getAttribute('position');if(positionAttribute!==undefined){var normalAttribute=this.getAttribute('normal');if(normalAttribute===undefined){normalAttribute=new BufferAttribute(new Float32Array(positionAttribute.count*3),3);this.setAttribute('normal',normalAttribute);}else {// reset existing normals to zero
for(var _i48=0,il=normalAttribute.count;_i48<il;_i48++){normalAttribute.setXYZ(_i48,0,0,0);}}var pA=new Vector3(),pB=new Vector3(),pC=new Vector3();var nA=new Vector3(),nB=new Vector3(),nC=new Vector3();var cb=new Vector3(),ab=new Vector3();// indexed elements
if(index){for(var _i49=0,_il4=index.count;_i49<_il4;_i49+=3){var vA=index.getX(_i49+0);var vB=index.getX(_i49+1);var vC=index.getX(_i49+2);pA.fromBufferAttribute(positionAttribute,vA);pB.fromBufferAttribute(positionAttribute,vB);pC.fromBufferAttribute(positionAttribute,vC);cb.subVectors(pC,pB);ab.subVectors(pA,pB);cb.cross(ab);nA.fromBufferAttribute(normalAttribute,vA);nB.fromBufferAttribute(normalAttribute,vB);nC.fromBufferAttribute(normalAttribute,vC);nA.add(cb);nB.add(cb);nC.add(cb);normalAttribute.setXYZ(vA,nA.x,nA.y,nA.z);normalAttribute.setXYZ(vB,nB.x,nB.y,nB.z);normalAttribute.setXYZ(vC,nC.x,nC.y,nC.z);}}else {// non-indexed elements (unconnected triangle soup)
for(var _i50=0,_il5=positionAttribute.count;_i50<_il5;_i50+=3){pA.fromBufferAttribute(positionAttribute,_i50+0);pB.fromBufferAttribute(positionAttribute,_i50+1);pC.fromBufferAttribute(positionAttribute,_i50+2);cb.subVectors(pC,pB);ab.subVectors(pA,pB);cb.cross(ab);normalAttribute.setXYZ(_i50+0,cb.x,cb.y,cb.z);normalAttribute.setXYZ(_i50+1,cb.x,cb.y,cb.z);normalAttribute.setXYZ(_i50+2,cb.x,cb.y,cb.z);}}this.normalizeNormals();normalAttribute.needsUpdate=true;}},merge:function merge(geometry,offset){if(!(geometry&&geometry.isBufferGeometry)){console.error('THREE.BufferGeometry.merge(): geometry not an instance of THREE.BufferGeometry.',geometry);return;}if(offset===undefined){offset=0;console.warn('THREE.BufferGeometry.merge(): Overwriting original geometry, starting at offset=0. '+'Use BufferGeometryUtils.mergeBufferGeometries() for lossless merge.');}var attributes=this.attributes;for(var key in attributes){if(geometry.attributes[key]===undefined)continue;var attribute1=attributes[key];var attributeArray1=attribute1.array;var attribute2=geometry.attributes[key];var attributeArray2=attribute2.array;var attributeOffset=attribute2.itemSize*offset;var length=Math.min(attributeArray2.length,attributeArray1.length-attributeOffset);for(var _i51=0,j=attributeOffset;_i51<length;_i51++,j++){attributeArray1[j]=attributeArray2[_i51];}}return this;},normalizeNormals:function normalizeNormals(){var normals=this.attributes.normal;for(var _i52=0,il=normals.count;_i52<il;_i52++){_vector$4.fromBufferAttribute(normals,_i52);_vector$4.normalize();normals.setXYZ(_i52,_vector$4.x,_vector$4.y,_vector$4.z);}},toNonIndexed:function toNonIndexed(){function convertBufferAttribute(attribute,indices){var array=attribute.array;var itemSize=attribute.itemSize;var normalized=attribute.normalized;var array2=new array.constructor(indices.length*itemSize);var index=0,index2=0;for(var _i53=0,l=indices.length;_i53<l;_i53++){index=indices[_i53]*itemSize;for(var j=0;j<itemSize;j++){array2[index2++]=array[index++];}}return new BufferAttribute(array2,itemSize,normalized);}//
if(this.index===null){console.warn('THREE.BufferGeometry.toNonIndexed(): Geometry is already non-indexed.');return this;}var geometry2=new BufferGeometry();var indices=this.index.array;var attributes=this.attributes;// attributes
for(var name in attributes){var attribute=attributes[name];var newAttribute=convertBufferAttribute(attribute,indices);geometry2.setAttribute(name,newAttribute);}// morph attributes
var morphAttributes=this.morphAttributes;for(var _name in morphAttributes){var morphArray=[];var morphAttribute=morphAttributes[_name];// morphAttribute: array of Float32BufferAttributes
for(var _i54=0,il=morphAttribute.length;_i54<il;_i54++){var _attribute5=morphAttribute[_i54];var _newAttribute=convertBufferAttribute(_attribute5,indices);morphArray.push(_newAttribute);}geometry2.morphAttributes[_name]=morphArray;}geometry2.morphTargetsRelative=this.morphTargetsRelative;// groups
var groups=this.groups;for(var _i55=0,l=groups.length;_i55<l;_i55++){var group=groups[_i55];geometry2.addGroup(group.start,group.count,group.materialIndex);}return geometry2;},toJSON:function toJSON(){var data={metadata:{version:4.5,type:'BufferGeometry',generator:'BufferGeometry.toJSON'}};// standard BufferGeometry serialization
data.uuid=this.uuid;data.type=this.type;if(this.name!=='')data.name=this.name;if(Object.keys(this.userData).length>0)data.userData=this.userData;if(this.parameters!==undefined){var parameters=this.parameters;for(var key in parameters){if(parameters[key]!==undefined)data[key]=parameters[key];}return data;}data.data={attributes:{}};var index=this.index;if(index!==null){data.data.index={type:index.array.constructor.name,array:Array.prototype.slice.call(index.array)};}var attributes=this.attributes;for(var _key in attributes){var attribute=attributes[_key];var attributeData=attribute.toJSON(data.data);if(attribute.name!=='')attributeData.name=attribute.name;data.data.attributes[_key]=attributeData;}var morphAttributes={};var hasMorphAttributes=false;for(var _key2 in this.morphAttributes){var attributeArray=this.morphAttributes[_key2];var array=[];for(var _i56=0,il=attributeArray.length;_i56<il;_i56++){var _attribute6=attributeArray[_i56];var _attributeData=_attribute6.toJSON(data.data);if(_attribute6.name!=='')_attributeData.name=_attribute6.name;array.push(_attributeData);}if(array.length>0){morphAttributes[_key2]=array;hasMorphAttributes=true;}}if(hasMorphAttributes){data.data.morphAttributes=morphAttributes;data.data.morphTargetsRelative=this.morphTargetsRelative;}var groups=this.groups;if(groups.length>0){data.data.groups=JSON.parse(JSON.stringify(groups));}var boundingSphere=this.boundingSphere;if(boundingSphere!==null){data.data.boundingSphere={center:boundingSphere.center.toArray(),radius:boundingSphere.radius};}return data;},clone:function clone(){/*
		 // Handle primitives

		 const parameters = this.parameters;

		 if ( parameters !== undefined ) {

		 const values = [];

		 for ( const key in parameters ) {

		 values.push( parameters[ key ] );

		 }

		 const geometry = Object.create( this.constructor.prototype );
		 this.constructor.apply( geometry, values );
		 return geometry;

		 }

		 return new this.constructor().copy( this );
		 */return new BufferGeometry().copy(this);},copy:function copy(source){// reset
this.index=null;this.attributes={};this.morphAttributes={};this.groups=[];this.boundingBox=null;this.boundingSphere=null;// used for storing cloned, shared data
var data={};// name
this.name=source.name;// index
var index=source.index;if(index!==null){this.setIndex(index.clone(data));}// attributes
var attributes=source.attributes;for(var name in attributes){var attribute=attributes[name];this.setAttribute(name,attribute.clone(data));}// morph attributes
var morphAttributes=source.morphAttributes;for(var _name2 in morphAttributes){var array=[];var morphAttribute=morphAttributes[_name2];// morphAttribute: array of Float32BufferAttributes
for(var _i57=0,l=morphAttribute.length;_i57<l;_i57++){array.push(morphAttribute[_i57].clone(data));}this.morphAttributes[_name2]=array;}this.morphTargetsRelative=source.morphTargetsRelative;// groups
var groups=source.groups;for(var _i58=0,_l3=groups.length;_i58<_l3;_i58++){var group=groups[_i58];this.addGroup(group.start,group.count,group.materialIndex);}// bounding box
var boundingBox=source.boundingBox;if(boundingBox!==null){this.boundingBox=boundingBox.clone();}// bounding sphere
var boundingSphere=source.boundingSphere;if(boundingSphere!==null){this.boundingSphere=boundingSphere.clone();}// draw range
this.drawRange.start=source.drawRange.start;this.drawRange.count=source.drawRange.count;// user data
this.userData=source.userData;return this;},dispose:function dispose(){this.dispatchEvent({type:'dispose'});}});var _inverseMatrix=new Matrix4();var _ray=new Ray();var _sphere=new Sphere();var _vA=new Vector3();var _vB=new Vector3();var _vC=new Vector3();var _tempA=new Vector3();var _tempB=new Vector3();var _tempC=new Vector3();var _morphA=new Vector3();var _morphB=new Vector3();var _morphC=new Vector3();var _uvA=new Vector2();var _uvB=new Vector2();var _uvC=new Vector2();var _intersectionPoint=new Vector3();var _intersectionPointWorld=new Vector3();function Mesh(){var geometry=arguments.length>0&&arguments[0]!==undefined?arguments[0]:new BufferGeometry();var material=arguments.length>1&&arguments[1]!==undefined?arguments[1]:new MeshBasicMaterial();Object3D.call(this);this.type='Mesh';this.geometry=geometry;this.material=material;this.updateMorphTargets();}Mesh.prototype=Object.assign(Object.create(Object3D.prototype),{constructor:Mesh,isMesh:true,copy:function copy(source){Object3D.prototype.copy.call(this,source);if(source.morphTargetInfluences!==undefined){this.morphTargetInfluences=source.morphTargetInfluences.slice();}if(source.morphTargetDictionary!==undefined){this.morphTargetDictionary=Object.assign({},source.morphTargetDictionary);}this.material=source.material;this.geometry=source.geometry;return this;},updateMorphTargets:function updateMorphTargets(){var geometry=this.geometry;if(geometry.isBufferGeometry){var morphAttributes=geometry.morphAttributes;var keys=Object.keys(morphAttributes);if(keys.length>0){var morphAttribute=morphAttributes[keys[0]];if(morphAttribute!==undefined){this.morphTargetInfluences=[];this.morphTargetDictionary={};for(var m=0,ml=morphAttribute.length;m<ml;m++){var name=morphAttribute[m].name||String(m);this.morphTargetInfluences.push(0);this.morphTargetDictionary[name]=m;}}}}else {var morphTargets=geometry.morphTargets;if(morphTargets!==undefined&&morphTargets.length>0){console.error('THREE.Mesh.updateMorphTargets() no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');}}},raycast:function raycast(raycaster,intersects){var geometry=this.geometry;var material=this.material;var matrixWorld=this.matrixWorld;if(material===undefined)return;// Checking boundingSphere distance to ray
if(geometry.boundingSphere===null)geometry.computeBoundingSphere();_sphere.copy(geometry.boundingSphere);_sphere.applyMatrix4(matrixWorld);if(raycaster.ray.intersectsSphere(_sphere)===false)return;//
_inverseMatrix.copy(matrixWorld).invert();_ray.copy(raycaster.ray).applyMatrix4(_inverseMatrix);// Check boundingBox before continuing
if(geometry.boundingBox!==null){if(_ray.intersectsBox(geometry.boundingBox)===false)return;}var intersection;if(geometry.isBufferGeometry){var index=geometry.index;var position=geometry.attributes.position;var morphPosition=geometry.morphAttributes.position;var morphTargetsRelative=geometry.morphTargetsRelative;var uv=geometry.attributes.uv;var uv2=geometry.attributes.uv2;var groups=geometry.groups;var drawRange=geometry.drawRange;if(index!==null){// indexed buffer geometry
if(Array.isArray(material)){for(var _i59=0,il=groups.length;_i59<il;_i59++){var group=groups[_i59];var groupMaterial=material[group.materialIndex];var start=Math.max(group.start,drawRange.start);var end=Math.min(group.start+group.count,drawRange.start+drawRange.count);for(var j=start,jl=end;j<jl;j+=3){var a=index.getX(j);var b=index.getX(j+1);var c=index.getX(j+2);intersection=checkBufferGeometryIntersection(this,groupMaterial,raycaster,_ray,position,morphPosition,morphTargetsRelative,uv,uv2,a,b,c);if(intersection){intersection.faceIndex=Math.floor(j/3);// triangle number in indexed buffer semantics
intersection.face.materialIndex=group.materialIndex;intersects.push(intersection);}}}}else {var _start2=Math.max(0,drawRange.start);var _end2=Math.min(index.count,drawRange.start+drawRange.count);for(var _i60=_start2,_il6=_end2;_i60<_il6;_i60+=3){var _a=index.getX(_i60);var _b=index.getX(_i60+1);var _c=index.getX(_i60+2);intersection=checkBufferGeometryIntersection(this,material,raycaster,_ray,position,morphPosition,morphTargetsRelative,uv,uv2,_a,_b,_c);if(intersection){intersection.faceIndex=Math.floor(_i60/3);// triangle number in indexed buffer semantics
intersects.push(intersection);}}}}else if(position!==undefined){// non-indexed buffer geometry
if(Array.isArray(material)){for(var _i61=0,_il7=groups.length;_i61<_il7;_i61++){var _group=groups[_i61];var _groupMaterial=material[_group.materialIndex];var _start3=Math.max(_group.start,drawRange.start);var _end3=Math.min(_group.start+_group.count,drawRange.start+drawRange.count);for(var _j2=_start3,_jl=_end3;_j2<_jl;_j2+=3){var _a2=_j2;var _b2=_j2+1;var _c2=_j2+2;intersection=checkBufferGeometryIntersection(this,_groupMaterial,raycaster,_ray,position,morphPosition,morphTargetsRelative,uv,uv2,_a2,_b2,_c2);if(intersection){intersection.faceIndex=Math.floor(_j2/3);// triangle number in non-indexed buffer semantics
intersection.face.materialIndex=_group.materialIndex;intersects.push(intersection);}}}}else {var _start4=Math.max(0,drawRange.start);var _end4=Math.min(position.count,drawRange.start+drawRange.count);for(var _i62=_start4,_il8=_end4;_i62<_il8;_i62+=3){var _a3=_i62;var _b3=_i62+1;var _c3=_i62+2;intersection=checkBufferGeometryIntersection(this,material,raycaster,_ray,position,morphPosition,morphTargetsRelative,uv,uv2,_a3,_b3,_c3);if(intersection){intersection.faceIndex=Math.floor(_i62/3);// triangle number in non-indexed buffer semantics
intersects.push(intersection);}}}}}else if(geometry.isGeometry){var isMultiMaterial=Array.isArray(material);var vertices=geometry.vertices;var faces=geometry.faces;var uvs;var faceVertexUvs=geometry.faceVertexUvs[0];if(faceVertexUvs.length>0)uvs=faceVertexUvs;for(var f=0,fl=faces.length;f<fl;f++){var face=faces[f];var faceMaterial=isMultiMaterial?material[face.materialIndex]:material;if(faceMaterial===undefined)continue;var fvA=vertices[face.a];var fvB=vertices[face.b];var fvC=vertices[face.c];intersection=checkIntersection(this,faceMaterial,raycaster,_ray,fvA,fvB,fvC,_intersectionPoint);if(intersection){if(uvs&&uvs[f]){var uvs_f=uvs[f];_uvA.copy(uvs_f[0]);_uvB.copy(uvs_f[1]);_uvC.copy(uvs_f[2]);intersection.uv=Triangle.getUV(_intersectionPoint,fvA,fvB,fvC,_uvA,_uvB,_uvC,new Vector2());}intersection.face=face;intersection.faceIndex=f;intersects.push(intersection);}}}}});function checkIntersection(object,material,raycaster,ray,pA,pB,pC,point){var intersect;if(material.side===BackSide){intersect=ray.intersectTriangle(pC,pB,pA,true,point);}else {intersect=ray.intersectTriangle(pA,pB,pC,material.side!==DoubleSide,point);}if(intersect===null)return null;_intersectionPointWorld.copy(point);_intersectionPointWorld.applyMatrix4(object.matrixWorld);var distance=raycaster.ray.origin.distanceTo(_intersectionPointWorld);if(distance<raycaster.near||distance>raycaster.far)return null;return {distance:distance,point:_intersectionPointWorld.clone(),object:object};}function checkBufferGeometryIntersection(object,material,raycaster,ray,position,morphPosition,morphTargetsRelative,uv,uv2,a,b,c){_vA.fromBufferAttribute(position,a);_vB.fromBufferAttribute(position,b);_vC.fromBufferAttribute(position,c);var morphInfluences=object.morphTargetInfluences;if(material.morphTargets&&morphPosition&&morphInfluences){_morphA.set(0,0,0);_morphB.set(0,0,0);_morphC.set(0,0,0);for(var _i63=0,il=morphPosition.length;_i63<il;_i63++){var influence=morphInfluences[_i63];var morphAttribute=morphPosition[_i63];if(influence===0)continue;_tempA.fromBufferAttribute(morphAttribute,a);_tempB.fromBufferAttribute(morphAttribute,b);_tempC.fromBufferAttribute(morphAttribute,c);if(morphTargetsRelative){_morphA.addScaledVector(_tempA,influence);_morphB.addScaledVector(_tempB,influence);_morphC.addScaledVector(_tempC,influence);}else {_morphA.addScaledVector(_tempA.sub(_vA),influence);_morphB.addScaledVector(_tempB.sub(_vB),influence);_morphC.addScaledVector(_tempC.sub(_vC),influence);}}_vA.add(_morphA);_vB.add(_morphB);_vC.add(_morphC);}if(object.isSkinnedMesh){object.boneTransform(a,_vA);object.boneTransform(b,_vB);object.boneTransform(c,_vC);}var intersection=checkIntersection(object,material,raycaster,ray,_vA,_vB,_vC,_intersectionPoint);if(intersection){if(uv){_uvA.fromBufferAttribute(uv,a);_uvB.fromBufferAttribute(uv,b);_uvC.fromBufferAttribute(uv,c);intersection.uv=Triangle.getUV(_intersectionPoint,_vA,_vB,_vC,_uvA,_uvB,_uvC,new Vector2());}if(uv2){_uvA.fromBufferAttribute(uv2,a);_uvB.fromBufferAttribute(uv2,b);_uvC.fromBufferAttribute(uv2,c);intersection.uv2=Triangle.getUV(_intersectionPoint,_vA,_vB,_vC,_uvA,_uvB,_uvC,new Vector2());}var face=new Face3(a,b,c);Triangle.getNormal(_vA,_vB,_vC,face.normal);intersection.face=face;}return intersection;}class BoxBufferGeometry extends BufferGeometry{constructor(){var width=arguments.length>0&&arguments[0]!==undefined?arguments[0]:1;var height=arguments.length>1&&arguments[1]!==undefined?arguments[1]:1;var depth=arguments.length>2&&arguments[2]!==undefined?arguments[2]:1;var widthSegments=arguments.length>3&&arguments[3]!==undefined?arguments[3]:1;var heightSegments=arguments.length>4&&arguments[4]!==undefined?arguments[4]:1;var depthSegments=arguments.length>5&&arguments[5]!==undefined?arguments[5]:1;super();this.type='BoxBufferGeometry';this.parameters={width:width,height:height,depth:depth,widthSegments:widthSegments,heightSegments:heightSegments,depthSegments:depthSegments};var scope=this;// segments
widthSegments=Math.floor(widthSegments);heightSegments=Math.floor(heightSegments);depthSegments=Math.floor(depthSegments);// buffers
var indices=[];var vertices=[];var normals=[];var uvs=[];// helper variables
var numberOfVertices=0;var groupStart=0;// build each side of the box geometry
buildPlane('z','y','x',-1,-1,depth,height,width,depthSegments,heightSegments,0);// px
buildPlane('z','y','x',1,-1,depth,height,-width,depthSegments,heightSegments,1);// nx
buildPlane('x','z','y',1,1,width,depth,height,widthSegments,depthSegments,2);// py
buildPlane('x','z','y',1,-1,width,depth,-height,widthSegments,depthSegments,3);// ny
buildPlane('x','y','z',1,-1,width,height,depth,widthSegments,heightSegments,4);// pz
buildPlane('x','y','z',-1,-1,width,height,-depth,widthSegments,heightSegments,5);// nz
// build geometry
this.setIndex(indices);this.setAttribute('position',new Float32BufferAttribute(vertices,3));this.setAttribute('normal',new Float32BufferAttribute(normals,3));this.setAttribute('uv',new Float32BufferAttribute(uvs,2));function buildPlane(u,v,w,udir,vdir,width,height,depth,gridX,gridY,materialIndex){var segmentWidth=width/gridX;var segmentHeight=height/gridY;var widthHalf=width/2;var heightHalf=height/2;var depthHalf=depth/2;var gridX1=gridX+1;var gridY1=gridY+1;var vertexCounter=0;var groupCount=0;var vector=new Vector3();// generate vertices, normals and uvs
for(var iy=0;iy<gridY1;iy++){var y=iy*segmentHeight-heightHalf;for(var ix=0;ix<gridX1;ix++){var x=ix*segmentWidth-widthHalf;// set values to correct vector component
vector[u]=x*udir;vector[v]=y*vdir;vector[w]=depthHalf;// now apply vector to vertex buffer
vertices.push(vector.x,vector.y,vector.z);// set values to correct vector component
vector[u]=0;vector[v]=0;vector[w]=depth>0?1:-1;// now apply vector to normal buffer
normals.push(vector.x,vector.y,vector.z);// uvs
uvs.push(ix/gridX);uvs.push(1-iy/gridY);// counters
vertexCounter+=1;}}// indices
// 1. you need three indices to draw a single face
// 2. a single segment consists of two faces
// 3. so we need to generate six (2*3) indices per segment
for(var _iy=0;_iy<gridY;_iy++){for(var _ix=0;_ix<gridX;_ix++){var a=numberOfVertices+_ix+gridX1*_iy;var b=numberOfVertices+_ix+gridX1*(_iy+1);var c=numberOfVertices+(_ix+1)+gridX1*(_iy+1);var d=numberOfVertices+(_ix+1)+gridX1*_iy;// faces
indices.push(a,b,d);indices.push(b,c,d);// increase counter
groupCount+=6;}}// add a group to the geometry. this will ensure multi material support
scope.addGroup(groupStart,groupCount,materialIndex);// calculate new start value for groups
groupStart+=groupCount;// update total number of vertices
numberOfVertices+=vertexCounter;}}}/**
 * Uniform Utilities
 */function cloneUniforms(src){var dst={};for(var u in src){dst[u]={};for(var p in src[u]){var property=src[u][p];if(property&&(property.isColor||property.isMatrix3||property.isMatrix4||property.isVector2||property.isVector3||property.isVector4||property.isTexture)){dst[u][p]=property.clone();}else if(Array.isArray(property)){dst[u][p]=property.slice();}else {dst[u][p]=property;}}}return dst;}function mergeUniforms(uniforms){var merged={};for(var u=0;u<uniforms.length;u++){var _tmp=cloneUniforms(uniforms[u]);for(var p in _tmp){merged[p]=_tmp[p];}}return merged;}// Legacy
var UniformsUtils={clone:cloneUniforms,merge:mergeUniforms};var default_vertex="void main() {\n\tgl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}";var default_fragment="void main() {\n\tgl_FragColor = vec4( 1.0, 0.0, 0.0, 1.0 );\n}";/**
 * parameters = {
 *  defines: { "label" : "value" },
 *  uniforms: { "parameter1": { value: 1.0 }, "parameter2": { value2: 2 } },
 *
 *  fragmentShader: <string>,
 *  vertexShader: <string>,
 *
 *  wireframe: <boolean>,
 *  wireframeLinewidth: <float>,
 *
 *  lights: <bool>,
 *
 *  skinning: <bool>,
 *  morphTargets: <bool>,
 *  morphNormals: <bool>
 * }
 */function ShaderMaterial(parameters){Material.call(this);this.type='ShaderMaterial';this.defines={};this.uniforms={};this.vertexShader=default_vertex;this.fragmentShader=default_fragment;this.linewidth=1;this.wireframe=false;this.wireframeLinewidth=1;this.fog=false;// set to use scene fog
this.lights=false;// set to use scene lights
this.clipping=false;// set to use user-defined clipping planes
this.skinning=false;// set to use skinning attribute streams
this.morphTargets=false;// set to use morph targets
this.morphNormals=false;// set to use morph normals
this.extensions={derivatives:false,// set to use derivatives
fragDepth:false,// set to use fragment depth values
drawBuffers:false,// set to use draw buffers
shaderTextureLOD:false// set to use shader texture LOD
};// When rendered geometry doesn't include these attributes but the material does,
// use these default values in WebGL. This avoids errors when buffer data is missing.
this.defaultAttributeValues={'color':[1,1,1],'uv':[0,0],'uv2':[0,0]};this.index0AttributeName=undefined;this.uniformsNeedUpdate=false;this.glslVersion=null;if(parameters!==undefined){if(parameters.attributes!==undefined){console.error('THREE.ShaderMaterial: attributes should now be defined in THREE.BufferGeometry instead.');}this.setValues(parameters);}}ShaderMaterial.prototype=Object.create(Material.prototype);ShaderMaterial.prototype.constructor=ShaderMaterial;ShaderMaterial.prototype.isShaderMaterial=true;ShaderMaterial.prototype.copy=function(source){Material.prototype.copy.call(this,source);this.fragmentShader=source.fragmentShader;this.vertexShader=source.vertexShader;this.uniforms=cloneUniforms(source.uniforms);this.defines=Object.assign({},source.defines);this.wireframe=source.wireframe;this.wireframeLinewidth=source.wireframeLinewidth;this.lights=source.lights;this.clipping=source.clipping;this.skinning=source.skinning;this.morphTargets=source.morphTargets;this.morphNormals=source.morphNormals;this.extensions=Object.assign({},source.extensions);this.glslVersion=source.glslVersion;return this;};ShaderMaterial.prototype.toJSON=function(meta){var data=Material.prototype.toJSON.call(this,meta);data.glslVersion=this.glslVersion;data.uniforms={};for(var name in this.uniforms){var uniform=this.uniforms[name];var value=uniform.value;if(value&&value.isTexture){data.uniforms[name]={type:'t',value:value.toJSON(meta).uuid};}else if(value&&value.isColor){data.uniforms[name]={type:'c',value:value.getHex()};}else if(value&&value.isVector2){data.uniforms[name]={type:'v2',value:value.toArray()};}else if(value&&value.isVector3){data.uniforms[name]={type:'v3',value:value.toArray()};}else if(value&&value.isVector4){data.uniforms[name]={type:'v4',value:value.toArray()};}else if(value&&value.isMatrix3){data.uniforms[name]={type:'m3',value:value.toArray()};}else if(value&&value.isMatrix4){data.uniforms[name]={type:'m4',value:value.toArray()};}else {data.uniforms[name]={value:value};// note: the array variants v2v, v3v, v4v, m4v and tv are not supported so far
}}if(Object.keys(this.defines).length>0)data.defines=this.defines;data.vertexShader=this.vertexShader;data.fragmentShader=this.fragmentShader;var extensions={};for(var key in this.extensions){if(this.extensions[key]===true)extensions[key]=true;}if(Object.keys(extensions).length>0)data.extensions=extensions;return data;};function Camera(){Object3D.call(this);this.type='Camera';this.matrixWorldInverse=new Matrix4();this.projectionMatrix=new Matrix4();this.projectionMatrixInverse=new Matrix4();}Camera.prototype=Object.assign(Object.create(Object3D.prototype),{constructor:Camera,isCamera:true,copy:function copy(source,recursive){Object3D.prototype.copy.call(this,source,recursive);this.matrixWorldInverse.copy(source.matrixWorldInverse);this.projectionMatrix.copy(source.projectionMatrix);this.projectionMatrixInverse.copy(source.projectionMatrixInverse);return this;},getWorldDirection:function getWorldDirection(target){if(target===undefined){console.warn('THREE.Camera: .getWorldDirection() target is now required');target=new Vector3();}this.updateWorldMatrix(true,false);var e=this.matrixWorld.elements;return target.set(-e[8],-e[9],-e[10]).normalize();},updateMatrixWorld:function updateMatrixWorld(force){Object3D.prototype.updateMatrixWorld.call(this,force);this.matrixWorldInverse.copy(this.matrixWorld).invert();},updateWorldMatrix:function updateWorldMatrix(updateParents,updateChildren){Object3D.prototype.updateWorldMatrix.call(this,updateParents,updateChildren);this.matrixWorldInverse.copy(this.matrixWorld).invert();},clone:function clone(){return new this.constructor().copy(this);}});function PerspectiveCamera(){var fov=arguments.length>0&&arguments[0]!==undefined?arguments[0]:50;var aspect=arguments.length>1&&arguments[1]!==undefined?arguments[1]:1;var near=arguments.length>2&&arguments[2]!==undefined?arguments[2]:0.1;var far=arguments.length>3&&arguments[3]!==undefined?arguments[3]:2000;Camera.call(this);this.type='PerspectiveCamera';this.fov=fov;this.zoom=1;this.near=near;this.far=far;this.focus=10;this.aspect=aspect;this.view=null;this.filmGauge=35;// width of the film (default in millimeters)
this.filmOffset=0;// horizontal film offset (same unit as gauge)
this.updateProjectionMatrix();}PerspectiveCamera.prototype=Object.assign(Object.create(Camera.prototype),{constructor:PerspectiveCamera,isPerspectiveCamera:true,copy:function copy(source,recursive){Camera.prototype.copy.call(this,source,recursive);this.fov=source.fov;this.zoom=source.zoom;this.near=source.near;this.far=source.far;this.focus=source.focus;this.aspect=source.aspect;this.view=source.view===null?null:Object.assign({},source.view);this.filmGauge=source.filmGauge;this.filmOffset=source.filmOffset;return this;},/**
	 * Sets the FOV by focal length in respect to the current .filmGauge.
	 *
	 * The default film gauge is 35, so that the focal length can be specified for
	 * a 35mm (full frame) camera.
	 *
	 * Values for focal length and film gauge must have the same unit.
	 */setFocalLength:function setFocalLength(focalLength){// see http://www.bobatkins.com/photography/technical/field_of_view.html
var vExtentSlope=0.5*this.getFilmHeight()/focalLength;this.fov=MathUtils.RAD2DEG*2*Math.atan(vExtentSlope);this.updateProjectionMatrix();},/**
	 * Calculates the focal length from the current .fov and .filmGauge.
	 */getFocalLength:function getFocalLength(){var vExtentSlope=Math.tan(MathUtils.DEG2RAD*0.5*this.fov);return 0.5*this.getFilmHeight()/vExtentSlope;},getEffectiveFOV:function getEffectiveFOV(){return MathUtils.RAD2DEG*2*Math.atan(Math.tan(MathUtils.DEG2RAD*0.5*this.fov)/this.zoom);},getFilmWidth:function getFilmWidth(){// film not completely covered in portrait format (aspect < 1)
return this.filmGauge*Math.min(this.aspect,1);},getFilmHeight:function getFilmHeight(){// film not completely covered in landscape format (aspect > 1)
return this.filmGauge/Math.max(this.aspect,1);},/**
	 * Sets an offset in a larger frustum. This is useful for multi-window or
	 * multi-monitor/multi-machine setups.
	 *
	 * For example, if you have 3x2 monitors and each monitor is 1920x1080 and
	 * the monitors are in grid like this
	 *
	 *   +---+---+---+
	 *   | A | B | C |
	 *   +---+---+---+
	 *   | D | E | F |
	 *   +---+---+---+
	 *
	 * then for each monitor you would call it like this
	 *
	 *   const w = 1920;
	 *   const h = 1080;
	 *   const fullWidth = w * 3;
	 *   const fullHeight = h * 2;
	 *
	 *   --A--
	 *   camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 0, w, h );
	 *   --B--
	 *   camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 0, w, h );
	 *   --C--
	 *   camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 0, w, h );
	 *   --D--
	 *   camera.setViewOffset( fullWidth, fullHeight, w * 0, h * 1, w, h );
	 *   --E--
	 *   camera.setViewOffset( fullWidth, fullHeight, w * 1, h * 1, w, h );
	 *   --F--
	 *   camera.setViewOffset( fullWidth, fullHeight, w * 2, h * 1, w, h );
	 *
	 *   Note there is no reason monitors have to be the same size or in a grid.
	 */setViewOffset:function setViewOffset(fullWidth,fullHeight,x,y,width,height){this.aspect=fullWidth/fullHeight;if(this.view===null){this.view={enabled:true,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1};}this.view.enabled=true;this.view.fullWidth=fullWidth;this.view.fullHeight=fullHeight;this.view.offsetX=x;this.view.offsetY=y;this.view.width=width;this.view.height=height;this.updateProjectionMatrix();},clearViewOffset:function clearViewOffset(){if(this.view!==null){this.view.enabled=false;}this.updateProjectionMatrix();},updateProjectionMatrix:function updateProjectionMatrix(){var near=this.near;var top=near*Math.tan(MathUtils.DEG2RAD*0.5*this.fov)/this.zoom;var height=2*top;var width=this.aspect*height;var left=-0.5*width;var view=this.view;if(this.view!==null&&this.view.enabled){var fullWidth=view.fullWidth,fullHeight=view.fullHeight;left+=view.offsetX*width/fullWidth;top-=view.offsetY*height/fullHeight;width*=view.width/fullWidth;height*=view.height/fullHeight;}var skew=this.filmOffset;if(skew!==0)left+=near*skew/this.getFilmWidth();this.projectionMatrix.makePerspective(left,left+width,top,top-height,near,this.far);this.projectionMatrixInverse.copy(this.projectionMatrix).invert();},toJSON:function toJSON(meta){var data=Object3D.prototype.toJSON.call(this,meta);data.object.fov=this.fov;data.object.zoom=this.zoom;data.object.near=this.near;data.object.far=this.far;data.object.focus=this.focus;data.object.aspect=this.aspect;if(this.view!==null)data.object.view=Object.assign({},this.view);data.object.filmGauge=this.filmGauge;data.object.filmOffset=this.filmOffset;return data;}});var fov=90,aspect=1;function CubeCamera(near,far,renderTarget){Object3D.call(this);this.type='CubeCamera';if(renderTarget.isWebGLCubeRenderTarget!==true){console.error('THREE.CubeCamera: The constructor now expects an instance of WebGLCubeRenderTarget as third parameter.');return;}this.renderTarget=renderTarget;var cameraPX=new PerspectiveCamera(fov,aspect,near,far);cameraPX.layers=this.layers;cameraPX.up.set(0,-1,0);cameraPX.lookAt(new Vector3(1,0,0));this.add(cameraPX);var cameraNX=new PerspectiveCamera(fov,aspect,near,far);cameraNX.layers=this.layers;cameraNX.up.set(0,-1,0);cameraNX.lookAt(new Vector3(-1,0,0));this.add(cameraNX);var cameraPY=new PerspectiveCamera(fov,aspect,near,far);cameraPY.layers=this.layers;cameraPY.up.set(0,0,1);cameraPY.lookAt(new Vector3(0,1,0));this.add(cameraPY);var cameraNY=new PerspectiveCamera(fov,aspect,near,far);cameraNY.layers=this.layers;cameraNY.up.set(0,0,-1);cameraNY.lookAt(new Vector3(0,-1,0));this.add(cameraNY);var cameraPZ=new PerspectiveCamera(fov,aspect,near,far);cameraPZ.layers=this.layers;cameraPZ.up.set(0,-1,0);cameraPZ.lookAt(new Vector3(0,0,1));this.add(cameraPZ);var cameraNZ=new PerspectiveCamera(fov,aspect,near,far);cameraNZ.layers=this.layers;cameraNZ.up.set(0,-1,0);cameraNZ.lookAt(new Vector3(0,0,-1));this.add(cameraNZ);this.update=function(renderer,scene){if(this.parent===null)this.updateMatrixWorld();var currentXrEnabled=renderer.xr.enabled;var currentRenderTarget=renderer.getRenderTarget();renderer.xr.enabled=false;var generateMipmaps=renderTarget.texture.generateMipmaps;renderTarget.texture.generateMipmaps=false;renderer.setRenderTarget(renderTarget,0);renderer.render(scene,cameraPX);renderer.setRenderTarget(renderTarget,1);renderer.render(scene,cameraNX);renderer.setRenderTarget(renderTarget,2);renderer.render(scene,cameraPY);renderer.setRenderTarget(renderTarget,3);renderer.render(scene,cameraNY);renderer.setRenderTarget(renderTarget,4);renderer.render(scene,cameraPZ);renderTarget.texture.generateMipmaps=generateMipmaps;renderer.setRenderTarget(renderTarget,5);renderer.render(scene,cameraNZ);renderer.setRenderTarget(currentRenderTarget);renderer.xr.enabled=currentXrEnabled;};}CubeCamera.prototype=Object.create(Object3D.prototype);CubeCamera.prototype.constructor=CubeCamera;function CubeTexture(images,mapping,wrapS,wrapT,magFilter,minFilter,format,type,anisotropy,encoding){images=images!==undefined?images:[];mapping=mapping!==undefined?mapping:CubeReflectionMapping;format=format!==undefined?format:RGBFormat;Texture.call(this,images,mapping,wrapS,wrapT,magFilter,minFilter,format,type,anisotropy,encoding);this.flipY=false;// Why CubeTexture._needsFlipEnvMap is necessary:
//
// By convention -- likely based on the RenderMan spec from the 1990's -- cube maps are specified by WebGL (and three.js)
// in a coordinate system in which positive-x is to the right when looking up the positive-z axis -- in other words,
// in a left-handed coordinate system. By continuing this convention, preexisting cube maps continued to render correctly.
// three.js uses a right-handed coordinate system. So environment maps used in three.js appear to have px and nx swapped
// and the flag _needsFlipEnvMap controls this conversion. The flip is not required (and thus _needsFlipEnvMap is set to false)
// when using WebGLCubeRenderTarget.texture as a cube texture.
this._needsFlipEnvMap=true;}CubeTexture.prototype=Object.create(Texture.prototype);CubeTexture.prototype.constructor=CubeTexture;CubeTexture.prototype.isCubeTexture=true;Object.defineProperty(CubeTexture.prototype,'images',{get:function get(){return this.image;},set:function set(value){this.image=value;}});function WebGLCubeRenderTarget(size,options,dummy){if(Number.isInteger(options)){console.warn('THREE.WebGLCubeRenderTarget: constructor signature is now WebGLCubeRenderTarget( size, options )');options=dummy;}WebGLRenderTarget.call(this,size,size,options);options=options||{};this.texture=new CubeTexture(undefined,options.mapping,options.wrapS,options.wrapT,options.magFilter,options.minFilter,options.format,options.type,options.anisotropy,options.encoding);this.texture._needsFlipEnvMap=false;}WebGLCubeRenderTarget.prototype=Object.create(WebGLRenderTarget.prototype);WebGLCubeRenderTarget.prototype.constructor=WebGLCubeRenderTarget;WebGLCubeRenderTarget.prototype.isWebGLCubeRenderTarget=true;WebGLCubeRenderTarget.prototype.fromEquirectangularTexture=function(renderer,texture){this.texture.type=texture.type;this.texture.format=RGBAFormat;// see #18859
this.texture.encoding=texture.encoding;this.texture.generateMipmaps=texture.generateMipmaps;this.texture.minFilter=texture.minFilter;this.texture.magFilter=texture.magFilter;var shader={uniforms:{tEquirect:{value:null}},vertexShader:/* glsl */"\n\n\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\tvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\n\t\t\t\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n\n\t\t\t}\n\n\t\t\tvoid main() {\n\n\t\t\t\tvWorldDirection = transformDirection( position, modelMatrix );\n\n\t\t\t\t#include <begin_vertex>\n\t\t\t\t#include <project_vertex>\n\n\t\t\t}\n\t\t",fragmentShader:/* glsl */"\n\n\t\t\tuniform sampler2D tEquirect;\n\n\t\t\tvarying vec3 vWorldDirection;\n\n\t\t\t#include <common>\n\n\t\t\tvoid main() {\n\n\t\t\t\tvec3 direction = normalize( vWorldDirection );\n\n\t\t\t\tvec2 sampleUV = equirectUv( direction );\n\n\t\t\t\tgl_FragColor = texture2D( tEquirect, sampleUV );\n\n\t\t\t}\n\t\t"};var geometry=new BoxBufferGeometry(5,5,5);var material=new ShaderMaterial({name:'CubemapFromEquirect',uniforms:cloneUniforms(shader.uniforms),vertexShader:shader.vertexShader,fragmentShader:shader.fragmentShader,side:BackSide,blending:NoBlending});material.uniforms.tEquirect.value=texture;var mesh=new Mesh(geometry,material);var currentMinFilter=texture.minFilter;// Avoid blurred poles
if(texture.minFilter===LinearMipmapLinearFilter)texture.minFilter=LinearFilter;var camera=new CubeCamera(1,10,this);camera.update(renderer,mesh);texture.minFilter=currentMinFilter;mesh.geometry.dispose();mesh.material.dispose();return this;};WebGLCubeRenderTarget.prototype.clear=function(renderer,color,depth,stencil){var currentRenderTarget=renderer.getRenderTarget();for(var _i64=0;_i64<6;_i64++){renderer.setRenderTarget(this,_i64);renderer.clear(color,depth,stencil);}renderer.setRenderTarget(currentRenderTarget);};function DataTexture(data,width,height,format,type,mapping,wrapS,wrapT,magFilter,minFilter,anisotropy,encoding){Texture.call(this,null,mapping,wrapS,wrapT,magFilter,minFilter,format,type,anisotropy,encoding);this.image={data:data||null,width:width||1,height:height||1};this.magFilter=magFilter!==undefined?magFilter:NearestFilter;this.minFilter=minFilter!==undefined?minFilter:NearestFilter;this.generateMipmaps=false;this.flipY=false;this.unpackAlignment=1;this.needsUpdate=true;}DataTexture.prototype=Object.create(Texture.prototype);DataTexture.prototype.constructor=DataTexture;DataTexture.prototype.isDataTexture=true;var _sphere$1=/*@__PURE__*/new Sphere();var _vector$5=/*@__PURE__*/new Vector3();class Frustum{constructor(p0,p1,p2,p3,p4,p5){this.planes=[p0!==undefined?p0:new Plane(),p1!==undefined?p1:new Plane(),p2!==undefined?p2:new Plane(),p3!==undefined?p3:new Plane(),p4!==undefined?p4:new Plane(),p5!==undefined?p5:new Plane()];}set(p0,p1,p2,p3,p4,p5){var planes=this.planes;planes[0].copy(p0);planes[1].copy(p1);planes[2].copy(p2);planes[3].copy(p3);planes[4].copy(p4);planes[5].copy(p5);return this;}clone(){return new this.constructor().copy(this);}copy(frustum){var planes=this.planes;for(var _i65=0;_i65<6;_i65++){planes[_i65].copy(frustum.planes[_i65]);}return this;}setFromProjectionMatrix(m){var planes=this.planes;var me=m.elements;var me0=me[0],me1=me[1],me2=me[2],me3=me[3];var me4=me[4],me5=me[5],me6=me[6],me7=me[7];var me8=me[8],me9=me[9],me10=me[10],me11=me[11];var me12=me[12],me13=me[13],me14=me[14],me15=me[15];planes[0].setComponents(me3-me0,me7-me4,me11-me8,me15-me12).normalize();planes[1].setComponents(me3+me0,me7+me4,me11+me8,me15+me12).normalize();planes[2].setComponents(me3+me1,me7+me5,me11+me9,me15+me13).normalize();planes[3].setComponents(me3-me1,me7-me5,me11-me9,me15-me13).normalize();planes[4].setComponents(me3-me2,me7-me6,me11-me10,me15-me14).normalize();planes[5].setComponents(me3+me2,me7+me6,me11+me10,me15+me14).normalize();return this;}intersectsObject(object){var geometry=object.geometry;if(geometry.boundingSphere===null)geometry.computeBoundingSphere();_sphere$1.copy(geometry.boundingSphere).applyMatrix4(object.matrixWorld);return this.intersectsSphere(_sphere$1);}intersectsSprite(sprite){_sphere$1.center.set(0,0,0);_sphere$1.radius=0.7071067811865476;_sphere$1.applyMatrix4(sprite.matrixWorld);return this.intersectsSphere(_sphere$1);}intersectsSphere(sphere){var planes=this.planes;var center=sphere.center;var negRadius=-sphere.radius;for(var _i66=0;_i66<6;_i66++){var distance=planes[_i66].distanceToPoint(center);if(distance<negRadius){return false;}}return true;}intersectsBox(box){var planes=this.planes;for(var _i67=0;_i67<6;_i67++){var plane=planes[_i67];// corner at max distance
_vector$5.x=plane.normal.x>0?box.max.x:box.min.x;_vector$5.y=plane.normal.y>0?box.max.y:box.min.y;_vector$5.z=plane.normal.z>0?box.max.z:box.min.z;if(plane.distanceToPoint(_vector$5)<0){return false;}}return true;}containsPoint(point){var planes=this.planes;for(var _i68=0;_i68<6;_i68++){if(planes[_i68].distanceToPoint(point)<0){return false;}}return true;}}function WebGLAnimation(){var context=null;var isAnimating=false;var animationLoop=null;var requestId=null;function onAnimationFrame(time,frame){animationLoop(time,frame);requestId=context.requestAnimationFrame(onAnimationFrame);}return {start:function start(){if(isAnimating===true)return;if(animationLoop===null)return;requestId=context.requestAnimationFrame(onAnimationFrame);isAnimating=true;},stop:function stop(){context.cancelAnimationFrame(requestId);isAnimating=false;},setAnimationLoop:function setAnimationLoop(callback){animationLoop=callback;},setContext:function setContext(value){context=value;}};}function WebGLAttributes(gl,capabilities){var isWebGL2=capabilities.isWebGL2;var buffers=new WeakMap();function createBuffer(attribute,bufferType){var array=attribute.array;var usage=attribute.usage;var buffer=gl.createBuffer();gl.bindBuffer(bufferType,buffer);gl.bufferData(bufferType,array,usage);attribute.onUploadCallback();var type=5126;if(array instanceof Float32Array){type=5126;}else if(array instanceof Float64Array){console.warn('THREE.WebGLAttributes: Unsupported data buffer format: Float64Array.');}else if(array instanceof Uint16Array){if(attribute.isFloat16BufferAttribute){if(isWebGL2){type=5131;}else {console.warn('THREE.WebGLAttributes: Usage of Float16BufferAttribute requires WebGL2.');}}else {type=5123;}}else if(array instanceof Int16Array){type=5122;}else if(array instanceof Uint32Array){type=5125;}else if(array instanceof Int32Array){type=5124;}else if(array instanceof Int8Array){type=5120;}else if(array instanceof Uint8Array){type=5121;}return {buffer:buffer,type:type,bytesPerElement:array.BYTES_PER_ELEMENT,version:attribute.version};}function updateBuffer(buffer,attribute,bufferType){var array=attribute.array;var updateRange=attribute.updateRange;gl.bindBuffer(bufferType,buffer);if(updateRange.count===-1){// Not using update ranges
gl.bufferSubData(bufferType,0,array);}else {if(isWebGL2){gl.bufferSubData(bufferType,updateRange.offset*array.BYTES_PER_ELEMENT,array,updateRange.offset,updateRange.count);}else {gl.bufferSubData(bufferType,updateRange.offset*array.BYTES_PER_ELEMENT,array.subarray(updateRange.offset,updateRange.offset+updateRange.count));}updateRange.count=-1;// reset range
}}//
function get(attribute){if(attribute.isInterleavedBufferAttribute)attribute=attribute.data;return buffers.get(attribute);}function remove(attribute){if(attribute.isInterleavedBufferAttribute)attribute=attribute.data;var data=buffers.get(attribute);if(data){gl.deleteBuffer(data.buffer);buffers.delete(attribute);}}function update(attribute,bufferType){if(attribute.isGLBufferAttribute){var cached=buffers.get(attribute);if(!cached||cached.version<attribute.version){buffers.set(attribute,{buffer:attribute.buffer,type:attribute.type,bytesPerElement:attribute.elementSize,version:attribute.version});}return;}if(attribute.isInterleavedBufferAttribute)attribute=attribute.data;var data=buffers.get(attribute);if(data===undefined){buffers.set(attribute,createBuffer(attribute,bufferType));}else if(data.version<attribute.version){updateBuffer(data.buffer,attribute,bufferType);data.version=attribute.version;}}return {get:get,remove:remove,update:update};}class PlaneBufferGeometry extends BufferGeometry{constructor(){var width=arguments.length>0&&arguments[0]!==undefined?arguments[0]:1;var height=arguments.length>1&&arguments[1]!==undefined?arguments[1]:1;var widthSegments=arguments.length>2&&arguments[2]!==undefined?arguments[2]:1;var heightSegments=arguments.length>3&&arguments[3]!==undefined?arguments[3]:1;super();this.type='PlaneBufferGeometry';this.parameters={width:width,height:height,widthSegments:widthSegments,heightSegments:heightSegments};var width_half=width/2;var height_half=height/2;var gridX=Math.floor(widthSegments);var gridY=Math.floor(heightSegments);var gridX1=gridX+1;var gridY1=gridY+1;var segment_width=width/gridX;var segment_height=height/gridY;//
var indices=[];var vertices=[];var normals=[];var uvs=[];for(var iy=0;iy<gridY1;iy++){var y=iy*segment_height-height_half;for(var ix=0;ix<gridX1;ix++){var x=ix*segment_width-width_half;vertices.push(x,-y,0);normals.push(0,0,1);uvs.push(ix/gridX);uvs.push(1-iy/gridY);}}for(var _iy2=0;_iy2<gridY;_iy2++){for(var _ix2=0;_ix2<gridX;_ix2++){var a=_ix2+gridX1*_iy2;var b=_ix2+gridX1*(_iy2+1);var c=_ix2+1+gridX1*(_iy2+1);var d=_ix2+1+gridX1*_iy2;indices.push(a,b,d);indices.push(b,c,d);}}this.setIndex(indices);this.setAttribute('position',new Float32BufferAttribute(vertices,3));this.setAttribute('normal',new Float32BufferAttribute(normals,3));this.setAttribute('uv',new Float32BufferAttribute(uvs,2));}}var alphamap_fragment="#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, vUv ).g;\n#endif";var alphamap_pars_fragment="#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif";var alphatest_fragment="#ifdef ALPHATEST\n\tif ( diffuseColor.a < ALPHATEST ) discard;\n#endif";var aomap_fragment="#ifdef USE_AOMAP\n\tfloat ambientOcclusion = ( texture2D( aoMap, vUv2 ).r - 1.0 ) * aoMapIntensity + 1.0;\n\treflectedLight.indirectDiffuse *= ambientOcclusion;\n\t#if defined( USE_ENVMAP ) && defined( STANDARD )\n\t\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular *= computeSpecularOcclusion( dotNV, ambientOcclusion, material.specularRoughness );\n\t#endif\n#endif";var aomap_pars_fragment="#ifdef USE_AOMAP\n\tuniform sampler2D aoMap;\n\tuniform float aoMapIntensity;\n#endif";var begin_vertex="vec3 transformed = vec3( position );";var beginnormal_vertex="vec3 objectNormal = vec3( normal );\n#ifdef USE_TANGENT\n\tvec3 objectTangent = vec3( tangent.xyz );\n#endif";var bsdfs="vec2 integrateSpecularBRDF( const in float dotNV, const in float roughness ) {\n\tconst vec4 c0 = vec4( - 1, - 0.0275, - 0.572, 0.022 );\n\tconst vec4 c1 = vec4( 1, 0.0425, 1.04, - 0.04 );\n\tvec4 r = roughness * c0 + c1;\n\tfloat a004 = min( r.x * r.x, exp2( - 9.28 * dotNV ) ) * r.x + r.y;\n\treturn vec2( -1.04, 1.04 ) * a004 + r.zw;\n}\nfloat punctualLightIntensityToIrradianceFactor( const in float lightDistance, const in float cutoffDistance, const in float decayExponent ) {\n#if defined ( PHYSICALLY_CORRECT_LIGHTS )\n\tfloat distanceFalloff = 1.0 / max( pow( lightDistance, decayExponent ), 0.01 );\n\tif( cutoffDistance > 0.0 ) {\n\t\tdistanceFalloff *= pow2( saturate( 1.0 - pow4( lightDistance / cutoffDistance ) ) );\n\t}\n\treturn distanceFalloff;\n#else\n\tif( cutoffDistance > 0.0 && decayExponent > 0.0 ) {\n\t\treturn pow( saturate( -lightDistance / cutoffDistance + 1.0 ), decayExponent );\n\t}\n\treturn 1.0;\n#endif\n}\nvec3 BRDF_Diffuse_Lambert( const in vec3 diffuseColor ) {\n\treturn RECIPROCAL_PI * diffuseColor;\n}\nvec3 F_Schlick( const in vec3 specularColor, const in float dotLH ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotLH - 6.98316 ) * dotLH );\n\treturn ( 1.0 - specularColor ) * fresnel + specularColor;\n}\nvec3 F_Schlick_RoughnessDependent( const in vec3 F0, const in float dotNV, const in float roughness ) {\n\tfloat fresnel = exp2( ( -5.55473 * dotNV - 6.98316 ) * dotNV );\n\tvec3 Fr = max( vec3( 1.0 - roughness ), F0 ) - F0;\n\treturn Fr * fresnel + F0;\n}\nfloat G_GGX_Smith( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gl = dotNL + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\tfloat gv = dotNV + sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\treturn 1.0 / ( gl * gv );\n}\nfloat G_GGX_SmithCorrelated( const in float alpha, const in float dotNL, const in float dotNV ) {\n\tfloat a2 = pow2( alpha );\n\tfloat gv = dotNL * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNV ) );\n\tfloat gl = dotNV * sqrt( a2 + ( 1.0 - a2 ) * pow2( dotNL ) );\n\treturn 0.5 / max( gv + gl, EPSILON );\n}\nfloat D_GGX( const in float alpha, const in float dotNH ) {\n\tfloat a2 = pow2( alpha );\n\tfloat denom = pow2( dotNH ) * ( a2 - 1.0 ) + 1.0;\n\treturn RECIPROCAL_PI * a2 / pow2( denom );\n}\nvec3 BRDF_Specular_GGX( const in IncidentLight incidentLight, const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat alpha = pow2( roughness );\n\tvec3 halfDir = normalize( incidentLight.direction + viewDir );\n\tfloat dotNL = saturate( dot( normal, incidentLight.direction ) );\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tfloat dotNH = saturate( dot( normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_GGX_SmithCorrelated( alpha, dotNL, dotNV );\n\tfloat D = D_GGX( alpha, dotNH );\n\treturn F * ( G * D );\n}\nvec2 LTC_Uv( const in vec3 N, const in vec3 V, const in float roughness ) {\n\tconst float LUT_SIZE = 64.0;\n\tconst float LUT_SCALE = ( LUT_SIZE - 1.0 ) / LUT_SIZE;\n\tconst float LUT_BIAS = 0.5 / LUT_SIZE;\n\tfloat dotNV = saturate( dot( N, V ) );\n\tvec2 uv = vec2( roughness, sqrt( 1.0 - dotNV ) );\n\tuv = uv * LUT_SCALE + LUT_BIAS;\n\treturn uv;\n}\nfloat LTC_ClippedSphereFormFactor( const in vec3 f ) {\n\tfloat l = length( f );\n\treturn max( ( l * l + f.z ) / ( l + 1.0 ), 0.0 );\n}\nvec3 LTC_EdgeVectorFormFactor( const in vec3 v1, const in vec3 v2 ) {\n\tfloat x = dot( v1, v2 );\n\tfloat y = abs( x );\n\tfloat a = 0.8543985 + ( 0.4965155 + 0.0145206 * y ) * y;\n\tfloat b = 3.4175940 + ( 4.1616724 + y ) * y;\n\tfloat v = a / b;\n\tfloat theta_sintheta = ( x > 0.0 ) ? v : 0.5 * inversesqrt( max( 1.0 - x * x, 1e-7 ) ) - v;\n\treturn cross( v1, v2 ) * theta_sintheta;\n}\nvec3 LTC_Evaluate( const in vec3 N, const in vec3 V, const in vec3 P, const in mat3 mInv, const in vec3 rectCoords[ 4 ] ) {\n\tvec3 v1 = rectCoords[ 1 ] - rectCoords[ 0 ];\n\tvec3 v2 = rectCoords[ 3 ] - rectCoords[ 0 ];\n\tvec3 lightNormal = cross( v1, v2 );\n\tif( dot( lightNormal, P - rectCoords[ 0 ] ) < 0.0 ) return vec3( 0.0 );\n\tvec3 T1, T2;\n\tT1 = normalize( V - N * dot( V, N ) );\n\tT2 = - cross( N, T1 );\n\tmat3 mat = mInv * transposeMat3( mat3( T1, T2, N ) );\n\tvec3 coords[ 4 ];\n\tcoords[ 0 ] = mat * ( rectCoords[ 0 ] - P );\n\tcoords[ 1 ] = mat * ( rectCoords[ 1 ] - P );\n\tcoords[ 2 ] = mat * ( rectCoords[ 2 ] - P );\n\tcoords[ 3 ] = mat * ( rectCoords[ 3 ] - P );\n\tcoords[ 0 ] = normalize( coords[ 0 ] );\n\tcoords[ 1 ] = normalize( coords[ 1 ] );\n\tcoords[ 2 ] = normalize( coords[ 2 ] );\n\tcoords[ 3 ] = normalize( coords[ 3 ] );\n\tvec3 vectorFormFactor = vec3( 0.0 );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 0 ], coords[ 1 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 1 ], coords[ 2 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 2 ], coords[ 3 ] );\n\tvectorFormFactor += LTC_EdgeVectorFormFactor( coords[ 3 ], coords[ 0 ] );\n\tfloat result = LTC_ClippedSphereFormFactor( vectorFormFactor );\n\treturn vec3( result );\n}\nvec3 BRDF_Specular_GGX_Environment( const in vec3 viewDir, const in vec3 normal, const in vec3 specularColor, const in float roughness ) {\n\tfloat dotNV = saturate( dot( normal, viewDir ) );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\treturn specularColor * brdf.x + brdf.y;\n}\nvoid BRDF_Specular_Multiscattering_Environment( const in GeometricContext geometry, const in vec3 specularColor, const in float roughness, inout vec3 singleScatter, inout vec3 multiScatter ) {\n\tfloat dotNV = saturate( dot( geometry.normal, geometry.viewDir ) );\n\tvec3 F = F_Schlick_RoughnessDependent( specularColor, dotNV, roughness );\n\tvec2 brdf = integrateSpecularBRDF( dotNV, roughness );\n\tvec3 FssEss = F * brdf.x + brdf.y;\n\tfloat Ess = brdf.x + brdf.y;\n\tfloat Ems = 1.0 - Ess;\n\tvec3 Favg = specularColor + ( 1.0 - specularColor ) * 0.047619;\tvec3 Fms = FssEss * Favg / ( 1.0 - Ems * Favg );\n\tsingleScatter += FssEss;\n\tmultiScatter += Fms * Ems;\n}\nfloat G_BlinnPhong_Implicit( ) {\n\treturn 0.25;\n}\nfloat D_BlinnPhong( const in float shininess, const in float dotNH ) {\n\treturn RECIPROCAL_PI * ( shininess * 0.5 + 1.0 ) * pow( dotNH, shininess );\n}\nvec3 BRDF_Specular_BlinnPhong( const in IncidentLight incidentLight, const in GeometricContext geometry, const in vec3 specularColor, const in float shininess ) {\n\tvec3 halfDir = normalize( incidentLight.direction + geometry.viewDir );\n\tfloat dotNH = saturate( dot( geometry.normal, halfDir ) );\n\tfloat dotLH = saturate( dot( incidentLight.direction, halfDir ) );\n\tvec3 F = F_Schlick( specularColor, dotLH );\n\tfloat G = G_BlinnPhong_Implicit( );\n\tfloat D = D_BlinnPhong( shininess, dotNH );\n\treturn F * ( G * D );\n}\nfloat GGXRoughnessToBlinnExponent( const in float ggxRoughness ) {\n\treturn ( 2.0 / pow2( ggxRoughness + 0.0001 ) - 2.0 );\n}\nfloat BlinnExponentToGGXRoughness( const in float blinnExponent ) {\n\treturn sqrt( 2.0 / ( blinnExponent + 2.0 ) );\n}\n#if defined( USE_SHEEN )\nfloat D_Charlie(float roughness, float NoH) {\n\tfloat invAlpha = 1.0 / roughness;\n\tfloat cos2h = NoH * NoH;\n\tfloat sin2h = max(1.0 - cos2h, 0.0078125);\treturn (2.0 + invAlpha) * pow(sin2h, invAlpha * 0.5) / (2.0 * PI);\n}\nfloat V_Neubelt(float NoV, float NoL) {\n\treturn saturate(1.0 / (4.0 * (NoL + NoV - NoL * NoV)));\n}\nvec3 BRDF_Specular_Sheen( const in float roughness, const in vec3 L, const in GeometricContext geometry, vec3 specularColor ) {\n\tvec3 N = geometry.normal;\n\tvec3 V = geometry.viewDir;\n\tvec3 H = normalize( V + L );\n\tfloat dotNH = saturate( dot( N, H ) );\n\treturn specularColor * D_Charlie( roughness, dotNH ) * V_Neubelt( dot(N, V), dot(N, L) );\n}\n#endif";var bumpmap_pars_fragment="#ifdef USE_BUMPMAP\n\tuniform sampler2D bumpMap;\n\tuniform float bumpScale;\n\tvec2 dHdxy_fwd() {\n\t\tvec2 dSTdx = dFdx( vUv );\n\t\tvec2 dSTdy = dFdy( vUv );\n\t\tfloat Hll = bumpScale * texture2D( bumpMap, vUv ).x;\n\t\tfloat dBx = bumpScale * texture2D( bumpMap, vUv + dSTdx ).x - Hll;\n\t\tfloat dBy = bumpScale * texture2D( bumpMap, vUv + dSTdy ).x - Hll;\n\t\treturn vec2( dBx, dBy );\n\t}\n\tvec3 perturbNormalArb( vec3 surf_pos, vec3 surf_norm, vec2 dHdxy ) {\n\t\tvec3 vSigmaX = vec3( dFdx( surf_pos.x ), dFdx( surf_pos.y ), dFdx( surf_pos.z ) );\n\t\tvec3 vSigmaY = vec3( dFdy( surf_pos.x ), dFdy( surf_pos.y ), dFdy( surf_pos.z ) );\n\t\tvec3 vN = surf_norm;\n\t\tvec3 R1 = cross( vSigmaY, vN );\n\t\tvec3 R2 = cross( vN, vSigmaX );\n\t\tfloat fDet = dot( vSigmaX, R1 );\n\t\tfDet *= ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t\tvec3 vGrad = sign( fDet ) * ( dHdxy.x * R1 + dHdxy.y * R2 );\n\t\treturn normalize( abs( fDet ) * surf_norm - vGrad );\n\t}\n#endif";var clipping_planes_fragment="#if NUM_CLIPPING_PLANES > 0\n\tvec4 plane;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < UNION_CLIPPING_PLANES; i ++ ) {\n\t\tplane = clippingPlanes[ i ];\n\t\tif ( dot( vClipPosition, plane.xyz ) > plane.w ) discard;\n\t}\n\t#pragma unroll_loop_end\n\t#if UNION_CLIPPING_PLANES < NUM_CLIPPING_PLANES\n\t\tbool clipped = true;\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = UNION_CLIPPING_PLANES; i < NUM_CLIPPING_PLANES; i ++ ) {\n\t\t\tplane = clippingPlanes[ i ];\n\t\t\tclipped = ( dot( vClipPosition, plane.xyz ) > plane.w ) && clipped;\n\t\t}\n\t\t#pragma unroll_loop_end\n\t\tif ( clipped ) discard;\n\t#endif\n#endif";var clipping_planes_pars_fragment="#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n\tuniform vec4 clippingPlanes[ NUM_CLIPPING_PLANES ];\n#endif";var clipping_planes_pars_vertex="#if NUM_CLIPPING_PLANES > 0\n\tvarying vec3 vClipPosition;\n#endif";var clipping_planes_vertex="#if NUM_CLIPPING_PLANES > 0\n\tvClipPosition = - mvPosition.xyz;\n#endif";var color_fragment="#ifdef USE_COLOR\n\tdiffuseColor.rgb *= vColor;\n#endif";var color_pars_fragment="#ifdef USE_COLOR\n\tvarying vec3 vColor;\n#endif";var color_pars_vertex="#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvarying vec3 vColor;\n#endif";var color_vertex="#if defined( USE_COLOR ) || defined( USE_INSTANCING_COLOR )\n\tvColor = vec3( 1.0 );\n#endif\n#ifdef USE_COLOR\n\tvColor.xyz *= color.xyz;\n#endif\n#ifdef USE_INSTANCING_COLOR\n\tvColor.xyz *= instanceColor.xyz;\n#endif";var common="#define PI 3.141592653589793\n#define PI2 6.283185307179586\n#define PI_HALF 1.5707963267948966\n#define RECIPROCAL_PI 0.3183098861837907\n#define RECIPROCAL_PI2 0.15915494309189535\n#define EPSILON 1e-6\n#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\n#define whiteComplement(a) ( 1.0 - saturate( a ) )\nfloat pow2( const in float x ) { return x*x; }\nfloat pow3( const in float x ) { return x*x*x; }\nfloat pow4( const in float x ) { float x2 = x*x; return x2*x2; }\nfloat average( const in vec3 color ) { return dot( color, vec3( 0.3333 ) ); }\nhighp float rand( const in vec2 uv ) {\n\tconst highp float a = 12.9898, b = 78.233, c = 43758.5453;\n\thighp float dt = dot( uv.xy, vec2( a,b ) ), sn = mod( dt, PI );\n\treturn fract(sin(sn) * c);\n}\n#ifdef HIGH_PRECISION\n\tfloat precisionSafeLength( vec3 v ) { return length( v ); }\n#else\n\tfloat max3( vec3 v ) { return max( max( v.x, v.y ), v.z ); }\n\tfloat precisionSafeLength( vec3 v ) {\n\t\tfloat maxComponent = max3( abs( v ) );\n\t\treturn length( v / maxComponent ) * maxComponent;\n\t}\n#endif\nstruct IncidentLight {\n\tvec3 color;\n\tvec3 direction;\n\tbool visible;\n};\nstruct ReflectedLight {\n\tvec3 directDiffuse;\n\tvec3 directSpecular;\n\tvec3 indirectDiffuse;\n\tvec3 indirectSpecular;\n};\nstruct GeometricContext {\n\tvec3 position;\n\tvec3 normal;\n\tvec3 viewDir;\n#ifdef CLEARCOAT\n\tvec3 clearcoatNormal;\n#endif\n};\nvec3 transformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( matrix * vec4( dir, 0.0 ) ).xyz );\n}\nvec3 inverseTransformDirection( in vec3 dir, in mat4 matrix ) {\n\treturn normalize( ( vec4( dir, 0.0 ) * matrix ).xyz );\n}\nvec3 projectOnPlane(in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\tfloat distance = dot( planeNormal, point - pointOnPlane );\n\treturn - distance * planeNormal + point;\n}\nfloat sideOfPlane( in vec3 point, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn sign( dot( point - pointOnPlane, planeNormal ) );\n}\nvec3 linePlaneIntersect( in vec3 pointOnLine, in vec3 lineDirection, in vec3 pointOnPlane, in vec3 planeNormal ) {\n\treturn lineDirection * ( dot( planeNormal, pointOnPlane - pointOnLine ) / dot( planeNormal, lineDirection ) ) + pointOnLine;\n}\nmat3 transposeMat3( const in mat3 m ) {\n\tmat3 tmp;\n\ttmp[ 0 ] = vec3( m[ 0 ].x, m[ 1 ].x, m[ 2 ].x );\n\ttmp[ 1 ] = vec3( m[ 0 ].y, m[ 1 ].y, m[ 2 ].y );\n\ttmp[ 2 ] = vec3( m[ 0 ].z, m[ 1 ].z, m[ 2 ].z );\n\treturn tmp;\n}\nfloat linearToRelativeLuminance( const in vec3 color ) {\n\tvec3 weights = vec3( 0.2126, 0.7152, 0.0722 );\n\treturn dot( weights, color.rgb );\n}\nbool isPerspectiveMatrix( mat4 m ) {\n\treturn m[ 2 ][ 3 ] == - 1.0;\n}\nvec2 equirectUv( in vec3 dir ) {\n\tfloat u = atan( dir.z, dir.x ) * RECIPROCAL_PI2 + 0.5;\n\tfloat v = asin( clamp( dir.y, - 1.0, 1.0 ) ) * RECIPROCAL_PI + 0.5;\n\treturn vec2( u, v );\n}";var cube_uv_reflection_fragment="#ifdef ENVMAP_TYPE_CUBE_UV\n\t#define cubeUV_maxMipLevel 8.0\n\t#define cubeUV_minMipLevel 4.0\n\t#define cubeUV_maxTileSize 256.0\n\t#define cubeUV_minTileSize 16.0\n\tfloat getFace( vec3 direction ) {\n\t\tvec3 absDirection = abs( direction );\n\t\tfloat face = - 1.0;\n\t\tif ( absDirection.x > absDirection.z ) {\n\t\t\tif ( absDirection.x > absDirection.y )\n\t\t\t\tface = direction.x > 0.0 ? 0.0 : 3.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t} else {\n\t\t\tif ( absDirection.z > absDirection.y )\n\t\t\t\tface = direction.z > 0.0 ? 2.0 : 5.0;\n\t\t\telse\n\t\t\t\tface = direction.y > 0.0 ? 1.0 : 4.0;\n\t\t}\n\t\treturn face;\n\t}\n\tvec2 getUV( vec3 direction, float face ) {\n\t\tvec2 uv;\n\t\tif ( face == 0.0 ) {\n\t\t\tuv = vec2( direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 1.0 ) {\n\t\t\tuv = vec2( - direction.x, - direction.z ) / abs( direction.y );\n\t\t} else if ( face == 2.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.y ) / abs( direction.z );\n\t\t} else if ( face == 3.0 ) {\n\t\t\tuv = vec2( - direction.z, direction.y ) / abs( direction.x );\n\t\t} else if ( face == 4.0 ) {\n\t\t\tuv = vec2( - direction.x, direction.z ) / abs( direction.y );\n\t\t} else {\n\t\t\tuv = vec2( direction.x, direction.y ) / abs( direction.z );\n\t\t}\n\t\treturn 0.5 * ( uv + 1.0 );\n\t}\n\tvec3 bilinearCubeUV( sampler2D envMap, vec3 direction, float mipInt ) {\n\t\tfloat face = getFace( direction );\n\t\tfloat filterInt = max( cubeUV_minMipLevel - mipInt, 0.0 );\n\t\tmipInt = max( mipInt, cubeUV_minMipLevel );\n\t\tfloat faceSize = exp2( mipInt );\n\t\tfloat texelSize = 1.0 / ( 3.0 * cubeUV_maxTileSize );\n\t\tvec2 uv = getUV( direction, face ) * ( faceSize - 1.0 );\n\t\tvec2 f = fract( uv );\n\t\tuv += 0.5 - f;\n\t\tif ( face > 2.0 ) {\n\t\t\tuv.y += faceSize;\n\t\t\tface -= 3.0;\n\t\t}\n\t\tuv.x += face * faceSize;\n\t\tif ( mipInt < cubeUV_maxMipLevel ) {\n\t\t\tuv.y += 2.0 * cubeUV_maxTileSize;\n\t\t}\n\t\tuv.y += filterInt * 2.0 * cubeUV_minTileSize;\n\t\tuv.x += 3.0 * max( 0.0, cubeUV_maxTileSize - 2.0 * faceSize );\n\t\tuv *= texelSize;\n\t\tvec3 tl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x += texelSize;\n\t\tvec3 tr = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.y += texelSize;\n\t\tvec3 br = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tuv.x -= texelSize;\n\t\tvec3 bl = envMapTexelToLinear( texture2D( envMap, uv ) ).rgb;\n\t\tvec3 tm = mix( tl, tr, f.x );\n\t\tvec3 bm = mix( bl, br, f.x );\n\t\treturn mix( tm, bm, f.y );\n\t}\n\t#define r0 1.0\n\t#define v0 0.339\n\t#define m0 - 2.0\n\t#define r1 0.8\n\t#define v1 0.276\n\t#define m1 - 1.0\n\t#define r4 0.4\n\t#define v4 0.046\n\t#define m4 2.0\n\t#define r5 0.305\n\t#define v5 0.016\n\t#define m5 3.0\n\t#define r6 0.21\n\t#define v6 0.0038\n\t#define m6 4.0\n\tfloat roughnessToMip( float roughness ) {\n\t\tfloat mip = 0.0;\n\t\tif ( roughness >= r1 ) {\n\t\t\tmip = ( r0 - roughness ) * ( m1 - m0 ) / ( r0 - r1 ) + m0;\n\t\t} else if ( roughness >= r4 ) {\n\t\t\tmip = ( r1 - roughness ) * ( m4 - m1 ) / ( r1 - r4 ) + m1;\n\t\t} else if ( roughness >= r5 ) {\n\t\t\tmip = ( r4 - roughness ) * ( m5 - m4 ) / ( r4 - r5 ) + m4;\n\t\t} else if ( roughness >= r6 ) {\n\t\t\tmip = ( r5 - roughness ) * ( m6 - m5 ) / ( r5 - r6 ) + m5;\n\t\t} else {\n\t\t\tmip = - 2.0 * log2( 1.16 * roughness );\t\t}\n\t\treturn mip;\n\t}\n\tvec4 textureCubeUV( sampler2D envMap, vec3 sampleDir, float roughness ) {\n\t\tfloat mip = clamp( roughnessToMip( roughness ), m0, cubeUV_maxMipLevel );\n\t\tfloat mipF = fract( mip );\n\t\tfloat mipInt = floor( mip );\n\t\tvec3 color0 = bilinearCubeUV( envMap, sampleDir, mipInt );\n\t\tif ( mipF == 0.0 ) {\n\t\t\treturn vec4( color0, 1.0 );\n\t\t} else {\n\t\t\tvec3 color1 = bilinearCubeUV( envMap, sampleDir, mipInt + 1.0 );\n\t\t\treturn vec4( mix( color0, color1, mipF ), 1.0 );\n\t\t}\n\t}\n#endif";var defaultnormal_vertex="vec3 transformedNormal = objectNormal;\n#ifdef USE_INSTANCING\n\tmat3 m = mat3( instanceMatrix );\n\ttransformedNormal /= vec3( dot( m[ 0 ], m[ 0 ] ), dot( m[ 1 ], m[ 1 ] ), dot( m[ 2 ], m[ 2 ] ) );\n\ttransformedNormal = m * transformedNormal;\n#endif\ntransformedNormal = normalMatrix * transformedNormal;\n#ifdef FLIP_SIDED\n\ttransformedNormal = - transformedNormal;\n#endif\n#ifdef USE_TANGENT\n\tvec3 transformedTangent = ( modelViewMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#ifdef FLIP_SIDED\n\t\ttransformedTangent = - transformedTangent;\n\t#endif\n#endif";var displacementmap_pars_vertex="#ifdef USE_DISPLACEMENTMAP\n\tuniform sampler2D displacementMap;\n\tuniform float displacementScale;\n\tuniform float displacementBias;\n#endif";var displacementmap_vertex="#ifdef USE_DISPLACEMENTMAP\n\ttransformed += normalize( objectNormal ) * ( texture2D( displacementMap, vUv ).x * displacementScale + displacementBias );\n#endif";var emissivemap_fragment="#ifdef USE_EMISSIVEMAP\n\tvec4 emissiveColor = texture2D( emissiveMap, vUv );\n\temissiveColor.rgb = emissiveMapTexelToLinear( emissiveColor ).rgb;\n\ttotalEmissiveRadiance *= emissiveColor.rgb;\n#endif";var emissivemap_pars_fragment="#ifdef USE_EMISSIVEMAP\n\tuniform sampler2D emissiveMap;\n#endif";var encodings_fragment="gl_FragColor = linearToOutputTexel( gl_FragColor );";var encodings_pars_fragment="\nvec4 LinearToLinear( in vec4 value ) {\n\treturn value;\n}\nvec4 GammaToLinear( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( gammaFactor ) ), value.a );\n}\nvec4 LinearToGamma( in vec4 value, in float gammaFactor ) {\n\treturn vec4( pow( value.rgb, vec3( 1.0 / gammaFactor ) ), value.a );\n}\nvec4 sRGBToLinear( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb * 0.9478672986 + vec3( 0.0521327014 ), vec3( 2.4 ) ), value.rgb * 0.0773993808, vec3( lessThanEqual( value.rgb, vec3( 0.04045 ) ) ) ), value.a );\n}\nvec4 LinearTosRGB( in vec4 value ) {\n\treturn vec4( mix( pow( value.rgb, vec3( 0.41666 ) ) * 1.055 - vec3( 0.055 ), value.rgb * 12.92, vec3( lessThanEqual( value.rgb, vec3( 0.0031308 ) ) ) ), value.a );\n}\nvec4 RGBEToLinear( in vec4 value ) {\n\treturn vec4( value.rgb * exp2( value.a * 255.0 - 128.0 ), 1.0 );\n}\nvec4 LinearToRGBE( in vec4 value ) {\n\tfloat maxComponent = max( max( value.r, value.g ), value.b );\n\tfloat fExp = clamp( ceil( log2( maxComponent ) ), -128.0, 127.0 );\n\treturn vec4( value.rgb / exp2( fExp ), ( fExp + 128.0 ) / 255.0 );\n}\nvec4 RGBMToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * value.a * maxRange, 1.0 );\n}\nvec4 LinearToRGBM( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat M = clamp( maxRGB / maxRange, 0.0, 1.0 );\n\tM = ceil( M * 255.0 ) / 255.0;\n\treturn vec4( value.rgb / ( M * maxRange ), M );\n}\nvec4 RGBDToLinear( in vec4 value, in float maxRange ) {\n\treturn vec4( value.rgb * ( ( maxRange / 255.0 ) / value.a ), 1.0 );\n}\nvec4 LinearToRGBD( in vec4 value, in float maxRange ) {\n\tfloat maxRGB = max( value.r, max( value.g, value.b ) );\n\tfloat D = max( maxRange / maxRGB, 1.0 );\n\tD = clamp( floor( D ) / 255.0, 0.0, 1.0 );\n\treturn vec4( value.rgb * ( D * ( 255.0 / maxRange ) ), D );\n}\nconst mat3 cLogLuvM = mat3( 0.2209, 0.3390, 0.4184, 0.1138, 0.6780, 0.7319, 0.0102, 0.1130, 0.2969 );\nvec4 LinearToLogLuv( in vec4 value ) {\n\tvec3 Xp_Y_XYZp = cLogLuvM * value.rgb;\n\tXp_Y_XYZp = max( Xp_Y_XYZp, vec3( 1e-6, 1e-6, 1e-6 ) );\n\tvec4 vResult;\n\tvResult.xy = Xp_Y_XYZp.xy / Xp_Y_XYZp.z;\n\tfloat Le = 2.0 * log2(Xp_Y_XYZp.y) + 127.0;\n\tvResult.w = fract( Le );\n\tvResult.z = ( Le - ( floor( vResult.w * 255.0 ) ) / 255.0 ) / 255.0;\n\treturn vResult;\n}\nconst mat3 cLogLuvInverseM = mat3( 6.0014, -2.7008, -1.7996, -1.3320, 3.1029, -5.7721, 0.3008, -1.0882, 5.6268 );\nvec4 LogLuvToLinear( in vec4 value ) {\n\tfloat Le = value.z * 255.0 + value.w;\n\tvec3 Xp_Y_XYZp;\n\tXp_Y_XYZp.y = exp2( ( Le - 127.0 ) / 2.0 );\n\tXp_Y_XYZp.z = Xp_Y_XYZp.y / value.y;\n\tXp_Y_XYZp.x = value.x * Xp_Y_XYZp.z;\n\tvec3 vRGB = cLogLuvInverseM * Xp_Y_XYZp.rgb;\n\treturn vec4( max( vRGB, 0.0 ), 1.0 );\n}";var envmap_fragment="#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvec3 cameraToFrag;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToFrag = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToFrag = normalize( vWorldPosition - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( normal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( cameraToFrag, worldNormal );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( cameraToFrag, worldNormal, refractionRatio );\n\t\t#endif\n\t#else\n\t\tvec3 reflectVec = vReflect;\n\t#endif\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tvec4 envColor = textureCube( envMap, vec3( flipEnvMap * reflectVec.x, reflectVec.yz ) );\n\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\tvec4 envColor = textureCubeUV( envMap, reflectVec, 0.0 );\n\t#else\n\t\tvec4 envColor = vec4( 0.0 );\n\t#endif\n\t#ifndef ENVMAP_TYPE_CUBE_UV\n\t\tenvColor = envMapTexelToLinear( envColor );\n\t#endif\n\t#ifdef ENVMAP_BLENDING_MULTIPLY\n\t\toutgoingLight = mix( outgoingLight, outgoingLight * envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_MIX )\n\t\toutgoingLight = mix( outgoingLight, envColor.xyz, specularStrength * reflectivity );\n\t#elif defined( ENVMAP_BLENDING_ADD )\n\t\toutgoingLight += envColor.xyz * specularStrength * reflectivity;\n\t#endif\n#endif";var envmap_common_pars_fragment="#ifdef USE_ENVMAP\n\tuniform float envMapIntensity;\n\tuniform float flipEnvMap;\n\tuniform int maxMipLevel;\n\t#ifdef ENVMAP_TYPE_CUBE\n\t\tuniform samplerCube envMap;\n\t#else\n\t\tuniform sampler2D envMap;\n\t#endif\n\t\n#endif";var envmap_pars_fragment="#ifdef USE_ENVMAP\n\tuniform float reflectivity;\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) || defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\tvarying vec3 vWorldPosition;\n\t\tuniform float refractionRatio;\n\t#else\n\t\tvarying vec3 vReflect;\n\t#endif\n#endif";var envmap_pars_vertex="#ifdef USE_ENVMAP\n\t#if defined( USE_BUMPMAP ) || defined( USE_NORMALMAP ) ||defined( PHONG )\n\t\t#define ENV_WORLDPOS\n\t#endif\n\t#ifdef ENV_WORLDPOS\n\t\t\n\t\tvarying vec3 vWorldPosition;\n\t#else\n\t\tvarying vec3 vReflect;\n\t\tuniform float refractionRatio;\n\t#endif\n#endif";var envmap_vertex="#ifdef USE_ENVMAP\n\t#ifdef ENV_WORLDPOS\n\t\tvWorldPosition = worldPosition.xyz;\n\t#else\n\t\tvec3 cameraToVertex;\n\t\tif ( isOrthographic ) {\n\t\t\tcameraToVertex = normalize( vec3( - viewMatrix[ 0 ][ 2 ], - viewMatrix[ 1 ][ 2 ], - viewMatrix[ 2 ][ 2 ] ) );\n\t\t} else {\n\t\t\tcameraToVertex = normalize( worldPosition.xyz - cameraPosition );\n\t\t}\n\t\tvec3 worldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvReflect = reflect( cameraToVertex, worldNormal );\n\t\t#else\n\t\t\tvReflect = refract( cameraToVertex, worldNormal, refractionRatio );\n\t\t#endif\n\t#endif\n#endif";var fog_vertex="#ifdef USE_FOG\n\tfogDepth = - mvPosition.z;\n#endif";var fog_pars_vertex="#ifdef USE_FOG\n\tvarying float fogDepth;\n#endif";var fog_fragment="#ifdef USE_FOG\n\t#ifdef FOG_EXP2\n\t\tfloat fogFactor = 1.0 - exp( - fogDensity * fogDensity * fogDepth * fogDepth );\n\t#else\n\t\tfloat fogFactor = smoothstep( fogNear, fogFar, fogDepth );\n\t#endif\n\tgl_FragColor.rgb = mix( gl_FragColor.rgb, fogColor, fogFactor );\n#endif";var fog_pars_fragment="#ifdef USE_FOG\n\tuniform vec3 fogColor;\n\tvarying float fogDepth;\n\t#ifdef FOG_EXP2\n\t\tuniform float fogDensity;\n\t#else\n\t\tuniform float fogNear;\n\t\tuniform float fogFar;\n\t#endif\n#endif";var gradientmap_pars_fragment="#ifdef USE_GRADIENTMAP\n\tuniform sampler2D gradientMap;\n#endif\nvec3 getGradientIrradiance( vec3 normal, vec3 lightDirection ) {\n\tfloat dotNL = dot( normal, lightDirection );\n\tvec2 coord = vec2( dotNL * 0.5 + 0.5, 0.0 );\n\t#ifdef USE_GRADIENTMAP\n\t\treturn texture2D( gradientMap, coord ).rgb;\n\t#else\n\t\treturn ( coord.x < 0.7 ) ? vec3( 0.7 ) : vec3( 1.0 );\n\t#endif\n}";var lightmap_fragment="#ifdef USE_LIGHTMAP\n\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\treflectedLight.indirectDiffuse += PI * lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n#endif";var lightmap_pars_fragment="#ifdef USE_LIGHTMAP\n\tuniform sampler2D lightMap;\n\tuniform float lightMapIntensity;\n#endif";var lights_lambert_vertex="vec3 diffuse = vec3( 1.0 );\nGeometricContext geometry;\ngeometry.position = mvPosition.xyz;\ngeometry.normal = normalize( transformedNormal );\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( -mvPosition.xyz );\nGeometricContext backGeometry;\nbackGeometry.position = geometry.position;\nbackGeometry.normal = -geometry.normal;\nbackGeometry.viewDir = geometry.viewDir;\nvLightFront = vec3( 0.0 );\nvIndirectFront = vec3( 0.0 );\n#ifdef DOUBLE_SIDED\n\tvLightBack = vec3( 0.0 );\n\tvIndirectBack = vec3( 0.0 );\n#endif\nIncidentLight directLight;\nfloat dotNL;\nvec3 directLightColor_Diffuse;\nvIndirectFront += getAmbientLightIrradiance( ambientLightColor );\nvIndirectFront += getLightProbeIrradiance( lightProbe, geometry );\n#ifdef DOUBLE_SIDED\n\tvIndirectBack += getAmbientLightIrradiance( ambientLightColor );\n\tvIndirectBack += getLightProbeIrradiance( lightProbe, backGeometry );\n#endif\n#if NUM_POINT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tgetPointDirectLightIrradiance( pointLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tgetSpotDirectLightIrradiance( spotLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_DIR_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tgetDirectionalDirectLightIrradiance( directionalLights[ i ], geometry, directLight );\n\t\tdotNL = dot( geometry.normal, directLight.direction );\n\t\tdirectLightColor_Diffuse = PI * directLight.color;\n\t\tvLightFront += saturate( dotNL ) * directLightColor_Diffuse;\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvLightBack += saturate( -dotNL ) * directLightColor_Diffuse;\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\tvIndirectFront += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\tvIndirectBack += getHemisphereLightIrradiance( hemisphereLights[ i ], backGeometry );\n\t\t#endif\n\t}\n\t#pragma unroll_loop_end\n#endif";var lights_pars_begin="uniform bool receiveShadow;\nuniform vec3 ambientLightColor;\nuniform vec3 lightProbe[ 9 ];\nvec3 shGetIrradianceAt( in vec3 normal, in vec3 shCoefficients[ 9 ] ) {\n\tfloat x = normal.x, y = normal.y, z = normal.z;\n\tvec3 result = shCoefficients[ 0 ] * 0.886227;\n\tresult += shCoefficients[ 1 ] * 2.0 * 0.511664 * y;\n\tresult += shCoefficients[ 2 ] * 2.0 * 0.511664 * z;\n\tresult += shCoefficients[ 3 ] * 2.0 * 0.511664 * x;\n\tresult += shCoefficients[ 4 ] * 2.0 * 0.429043 * x * y;\n\tresult += shCoefficients[ 5 ] * 2.0 * 0.429043 * y * z;\n\tresult += shCoefficients[ 6 ] * ( 0.743125 * z * z - 0.247708 );\n\tresult += shCoefficients[ 7 ] * 2.0 * 0.429043 * x * z;\n\tresult += shCoefficients[ 8 ] * 0.429043 * ( x * x - y * y );\n\treturn result;\n}\nvec3 getLightProbeIrradiance( const in vec3 lightProbe[ 9 ], const in GeometricContext geometry ) {\n\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\tvec3 irradiance = shGetIrradianceAt( worldNormal, lightProbe );\n\treturn irradiance;\n}\nvec3 getAmbientLightIrradiance( const in vec3 ambientLightColor ) {\n\tvec3 irradiance = ambientLightColor;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treturn irradiance;\n}\n#if NUM_DIR_LIGHTS > 0\n\tstruct DirectionalLight {\n\t\tvec3 direction;\n\t\tvec3 color;\n\t};\n\tuniform DirectionalLight directionalLights[ NUM_DIR_LIGHTS ];\n\tvoid getDirectionalDirectLightIrradiance( const in DirectionalLight directionalLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tdirectLight.color = directionalLight.color;\n\t\tdirectLight.direction = directionalLight.direction;\n\t\tdirectLight.visible = true;\n\t}\n#endif\n#if NUM_POINT_LIGHTS > 0\n\tstruct PointLight {\n\t\tvec3 position;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t};\n\tuniform PointLight pointLights[ NUM_POINT_LIGHTS ];\n\tvoid getPointDirectLightIrradiance( const in PointLight pointLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = pointLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tdirectLight.color = pointLight.color;\n\t\tdirectLight.color *= punctualLightIntensityToIrradianceFactor( lightDistance, pointLight.distance, pointLight.decay );\n\t\tdirectLight.visible = ( directLight.color != vec3( 0.0 ) );\n\t}\n#endif\n#if NUM_SPOT_LIGHTS > 0\n\tstruct SpotLight {\n\t\tvec3 position;\n\t\tvec3 direction;\n\t\tvec3 color;\n\t\tfloat distance;\n\t\tfloat decay;\n\t\tfloat coneCos;\n\t\tfloat penumbraCos;\n\t};\n\tuniform SpotLight spotLights[ NUM_SPOT_LIGHTS ];\n\tvoid getSpotDirectLightIrradiance( const in SpotLight spotLight, const in GeometricContext geometry, out IncidentLight directLight ) {\n\t\tvec3 lVector = spotLight.position - geometry.position;\n\t\tdirectLight.direction = normalize( lVector );\n\t\tfloat lightDistance = length( lVector );\n\t\tfloat angleCos = dot( directLight.direction, spotLight.direction );\n\t\tif ( angleCos > spotLight.coneCos ) {\n\t\t\tfloat spotEffect = smoothstep( spotLight.coneCos, spotLight.penumbraCos, angleCos );\n\t\t\tdirectLight.color = spotLight.color;\n\t\t\tdirectLight.color *= spotEffect * punctualLightIntensityToIrradianceFactor( lightDistance, spotLight.distance, spotLight.decay );\n\t\t\tdirectLight.visible = true;\n\t\t} else {\n\t\t\tdirectLight.color = vec3( 0.0 );\n\t\t\tdirectLight.visible = false;\n\t\t}\n\t}\n#endif\n#if NUM_RECT_AREA_LIGHTS > 0\n\tstruct RectAreaLight {\n\t\tvec3 color;\n\t\tvec3 position;\n\t\tvec3 halfWidth;\n\t\tvec3 halfHeight;\n\t};\n\tuniform sampler2D ltc_1;\tuniform sampler2D ltc_2;\n\tuniform RectAreaLight rectAreaLights[ NUM_RECT_AREA_LIGHTS ];\n#endif\n#if NUM_HEMI_LIGHTS > 0\n\tstruct HemisphereLight {\n\t\tvec3 direction;\n\t\tvec3 skyColor;\n\t\tvec3 groundColor;\n\t};\n\tuniform HemisphereLight hemisphereLights[ NUM_HEMI_LIGHTS ];\n\tvec3 getHemisphereLightIrradiance( const in HemisphereLight hemiLight, const in GeometricContext geometry ) {\n\t\tfloat dotNL = dot( geometry.normal, hemiLight.direction );\n\t\tfloat hemiDiffuseWeight = 0.5 * dotNL + 0.5;\n\t\tvec3 irradiance = mix( hemiLight.groundColor, hemiLight.skyColor, hemiDiffuseWeight );\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tirradiance *= PI;\n\t\t#endif\n\t\treturn irradiance;\n\t}\n#endif";var envmap_physical_pars_fragment="#if defined( USE_ENVMAP )\n\t#ifdef ENVMAP_MODE_REFRACTION\n\t\tuniform float refractionRatio;\n\t#endif\n\tvec3 getLightProbeIndirectIrradiance( const in GeometricContext geometry, const in int maxMIPLevel ) {\n\t\tvec3 worldNormal = inverseTransformDirection( geometry.normal, viewMatrix );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryVec = vec3( flipEnvMap * worldNormal.x, worldNormal.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryVec, float( maxMIPLevel ) );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, worldNormal, 1.0 );\n\t\t#else\n\t\t\tvec4 envMapColor = vec4( 0.0 );\n\t\t#endif\n\t\treturn PI * envMapColor.rgb * envMapIntensity;\n\t}\n\tfloat getSpecularMIPLevel( const in float roughness, const in int maxMIPLevel ) {\n\t\tfloat maxMIPLevelScalar = float( maxMIPLevel );\n\t\tfloat sigma = PI * roughness * roughness / ( 1.0 + roughness );\n\t\tfloat desiredMIPLevel = maxMIPLevelScalar + log2( sigma );\n\t\treturn clamp( desiredMIPLevel, 0.0, maxMIPLevelScalar );\n\t}\n\tvec3 getLightProbeIndirectRadiance( const in vec3 viewDir, const in vec3 normal, const in float roughness, const in int maxMIPLevel ) {\n\t\t#ifdef ENVMAP_MODE_REFLECTION\n\t\t\tvec3 reflectVec = reflect( -viewDir, normal );\n\t\t\treflectVec = normalize( mix( reflectVec, normal, roughness * roughness) );\n\t\t#else\n\t\t\tvec3 reflectVec = refract( -viewDir, normal, refractionRatio );\n\t\t#endif\n\t\treflectVec = inverseTransformDirection( reflectVec, viewMatrix );\n\t\tfloat specularMIPLevel = getSpecularMIPLevel( roughness, maxMIPLevel );\n\t\t#ifdef ENVMAP_TYPE_CUBE\n\t\t\tvec3 queryReflectVec = vec3( flipEnvMap * reflectVec.x, reflectVec.yz );\n\t\t\t#ifdef TEXTURE_LOD_EXT\n\t\t\t\tvec4 envMapColor = textureCubeLodEXT( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#else\n\t\t\t\tvec4 envMapColor = textureCube( envMap, queryReflectVec, specularMIPLevel );\n\t\t\t#endif\n\t\t\tenvMapColor.rgb = envMapTexelToLinear( envMapColor ).rgb;\n\t\t#elif defined( ENVMAP_TYPE_CUBE_UV )\n\t\t\tvec4 envMapColor = textureCubeUV( envMap, reflectVec, roughness );\n\t\t#endif\n\t\treturn envMapColor.rgb * envMapIntensity;\n\t}\n#endif";var lights_toon_fragment="ToonMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;";var lights_toon_pars_fragment="varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct ToonMaterial {\n\tvec3 diffuseColor;\n};\nvoid RE_Direct_Toon( const in IncidentLight directLight, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\tvec3 irradiance = getGradientIrradiance( geometry.normal, directLight.direction ) * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Toon( const in vec3 irradiance, const in GeometricContext geometry, const in ToonMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_Toon\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Toon\n#define Material_LightProbeLOD( material )\t(0)";var lights_phong_fragment="BlinnPhongMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb;\nmaterial.specularColor = specular;\nmaterial.specularShininess = shininess;\nmaterial.specularStrength = specularStrength;";var lights_phong_pars_fragment="varying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\nstruct BlinnPhongMaterial {\n\tvec3 diffuseColor;\n\tvec3 specularColor;\n\tfloat specularShininess;\n\tfloat specularStrength;\n};\nvoid RE_Direct_BlinnPhong( const in IncidentLight directLight, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\treflectedLight.directDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n\treflectedLight.directSpecular += irradiance * BRDF_Specular_BlinnPhong( directLight, geometry, material.specularColor, material.specularShininess ) * material.specularStrength;\n}\nvoid RE_IndirectDiffuse_BlinnPhong( const in vec3 irradiance, const in GeometricContext geometry, const in BlinnPhongMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\n#define RE_Direct\t\t\t\tRE_Direct_BlinnPhong\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_BlinnPhong\n#define Material_LightProbeLOD( material )\t(0)";var lights_physical_fragment="PhysicalMaterial material;\nmaterial.diffuseColor = diffuseColor.rgb * ( 1.0 - metalnessFactor );\nvec3 dxy = max( abs( dFdx( geometryNormal ) ), abs( dFdy( geometryNormal ) ) );\nfloat geometryRoughness = max( max( dxy.x, dxy.y ), dxy.z );\nmaterial.specularRoughness = max( roughnessFactor, 0.0525 );material.specularRoughness += geometryRoughness;\nmaterial.specularRoughness = min( material.specularRoughness, 1.0 );\n#ifdef REFLECTIVITY\n\tmaterial.specularColor = mix( vec3( MAXIMUM_SPECULAR_COEFFICIENT * pow2( reflectivity ) ), diffuseColor.rgb, metalnessFactor );\n#else\n\tmaterial.specularColor = mix( vec3( DEFAULT_SPECULAR_COEFFICIENT ), diffuseColor.rgb, metalnessFactor );\n#endif\n#ifdef CLEARCOAT\n\tmaterial.clearcoat = clearcoat;\n\tmaterial.clearcoatRoughness = clearcoatRoughness;\n\t#ifdef USE_CLEARCOATMAP\n\t\tmaterial.clearcoat *= texture2D( clearcoatMap, vUv ).x;\n\t#endif\n\t#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\t\tmaterial.clearcoatRoughness *= texture2D( clearcoatRoughnessMap, vUv ).y;\n\t#endif\n\tmaterial.clearcoat = saturate( material.clearcoat );\tmaterial.clearcoatRoughness = max( material.clearcoatRoughness, 0.0525 );\n\tmaterial.clearcoatRoughness += geometryRoughness;\n\tmaterial.clearcoatRoughness = min( material.clearcoatRoughness, 1.0 );\n#endif\n#ifdef USE_SHEEN\n\tmaterial.sheenColor = sheen;\n#endif";var lights_physical_pars_fragment="struct PhysicalMaterial {\n\tvec3 diffuseColor;\n\tfloat specularRoughness;\n\tvec3 specularColor;\n#ifdef CLEARCOAT\n\tfloat clearcoat;\n\tfloat clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tvec3 sheenColor;\n#endif\n};\n#define MAXIMUM_SPECULAR_COEFFICIENT 0.16\n#define DEFAULT_SPECULAR_COEFFICIENT 0.04\nfloat clearcoatDHRApprox( const in float roughness, const in float dotNL ) {\n\treturn DEFAULT_SPECULAR_COEFFICIENT + ( 1.0 - DEFAULT_SPECULAR_COEFFICIENT ) * ( pow( 1.0 - dotNL, 5.0 ) * pow( 1.0 - roughness, 2.0 ) );\n}\n#if NUM_RECT_AREA_LIGHTS > 0\n\tvoid RE_Direct_RectArea_Physical( const in RectAreaLight rectAreaLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\t\tvec3 normal = geometry.normal;\n\t\tvec3 viewDir = geometry.viewDir;\n\t\tvec3 position = geometry.position;\n\t\tvec3 lightPos = rectAreaLight.position;\n\t\tvec3 halfWidth = rectAreaLight.halfWidth;\n\t\tvec3 halfHeight = rectAreaLight.halfHeight;\n\t\tvec3 lightColor = rectAreaLight.color;\n\t\tfloat roughness = material.specularRoughness;\n\t\tvec3 rectCoords[ 4 ];\n\t\trectCoords[ 0 ] = lightPos + halfWidth - halfHeight;\t\trectCoords[ 1 ] = lightPos - halfWidth - halfHeight;\n\t\trectCoords[ 2 ] = lightPos - halfWidth + halfHeight;\n\t\trectCoords[ 3 ] = lightPos + halfWidth + halfHeight;\n\t\tvec2 uv = LTC_Uv( normal, viewDir, roughness );\n\t\tvec4 t1 = texture2D( ltc_1, uv );\n\t\tvec4 t2 = texture2D( ltc_2, uv );\n\t\tmat3 mInv = mat3(\n\t\t\tvec3( t1.x, 0, t1.y ),\n\t\t\tvec3(    0, 1,    0 ),\n\t\t\tvec3( t1.z, 0, t1.w )\n\t\t);\n\t\tvec3 fresnel = ( material.specularColor * t2.x + ( vec3( 1.0 ) - material.specularColor ) * t2.y );\n\t\treflectedLight.directSpecular += lightColor * fresnel * LTC_Evaluate( normal, viewDir, position, mInv, rectCoords );\n\t\treflectedLight.directDiffuse += lightColor * material.diffuseColor * LTC_Evaluate( normal, viewDir, position, mat3( 1.0 ), rectCoords );\n\t}\n#endif\nvoid RE_Direct_Physical( const in IncidentLight directLight, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\tfloat dotNL = saturate( dot( geometry.normal, directLight.direction ) );\n\tvec3 irradiance = dotNL * directLight.color;\n\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\tirradiance *= PI;\n\t#endif\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNL = saturate( dot( geometry.clearcoatNormal, directLight.direction ) );\n\t\tvec3 ccIrradiance = ccDotNL * directLight.color;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tccIrradiance *= PI;\n\t\t#endif\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t\treflectedLight.directSpecular += ccIrradiance * material.clearcoat * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\t#ifdef USE_SHEEN\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_Sheen(\n\t\t\tmaterial.specularRoughness,\n\t\t\tdirectLight.direction,\n\t\t\tgeometry,\n\t\t\tmaterial.sheenColor\n\t\t);\n\t#else\n\t\treflectedLight.directSpecular += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Specular_GGX( directLight, geometry.viewDir, geometry.normal, material.specularColor, material.specularRoughness);\n\t#endif\n\treflectedLight.directDiffuse += ( 1.0 - clearcoatDHR ) * irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectDiffuse_Physical( const in vec3 irradiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight ) {\n\treflectedLight.indirectDiffuse += irradiance * BRDF_Diffuse_Lambert( material.diffuseColor );\n}\nvoid RE_IndirectSpecular_Physical( const in vec3 radiance, const in vec3 irradiance, const in vec3 clearcoatRadiance, const in GeometricContext geometry, const in PhysicalMaterial material, inout ReflectedLight reflectedLight) {\n\t#ifdef CLEARCOAT\n\t\tfloat ccDotNV = saturate( dot( geometry.clearcoatNormal, geometry.viewDir ) );\n\t\treflectedLight.indirectSpecular += clearcoatRadiance * material.clearcoat * BRDF_Specular_GGX_Environment( geometry.viewDir, geometry.clearcoatNormal, vec3( DEFAULT_SPECULAR_COEFFICIENT ), material.clearcoatRoughness );\n\t\tfloat ccDotNL = ccDotNV;\n\t\tfloat clearcoatDHR = material.clearcoat * clearcoatDHRApprox( material.clearcoatRoughness, ccDotNL );\n\t#else\n\t\tfloat clearcoatDHR = 0.0;\n\t#endif\n\tfloat clearcoatInv = 1.0 - clearcoatDHR;\n\tvec3 singleScattering = vec3( 0.0 );\n\tvec3 multiScattering = vec3( 0.0 );\n\tvec3 cosineWeightedIrradiance = irradiance * RECIPROCAL_PI;\n\tBRDF_Specular_Multiscattering_Environment( geometry, material.specularColor, material.specularRoughness, singleScattering, multiScattering );\n\tvec3 diffuse = material.diffuseColor * ( 1.0 - ( singleScattering + multiScattering ) );\n\treflectedLight.indirectSpecular += clearcoatInv * radiance * singleScattering;\n\treflectedLight.indirectSpecular += multiScattering * cosineWeightedIrradiance;\n\treflectedLight.indirectDiffuse += diffuse * cosineWeightedIrradiance;\n}\n#define RE_Direct\t\t\t\tRE_Direct_Physical\n#define RE_Direct_RectArea\t\tRE_Direct_RectArea_Physical\n#define RE_IndirectDiffuse\t\tRE_IndirectDiffuse_Physical\n#define RE_IndirectSpecular\t\tRE_IndirectSpecular_Physical\nfloat computeSpecularOcclusion( const in float dotNV, const in float ambientOcclusion, const in float roughness ) {\n\treturn saturate( pow( dotNV + ambientOcclusion, exp2( - 16.0 * roughness - 1.0 ) ) - 1.0 + ambientOcclusion );\n}";var lights_fragment_begin="\nGeometricContext geometry;\ngeometry.position = - vViewPosition;\ngeometry.normal = normal;\ngeometry.viewDir = ( isOrthographic ) ? vec3( 0, 0, 1 ) : normalize( vViewPosition );\n#ifdef CLEARCOAT\n\tgeometry.clearcoatNormal = clearcoatNormal;\n#endif\nIncidentLight directLight;\n#if ( NUM_POINT_LIGHTS > 0 ) && defined( RE_Direct )\n\tPointLight pointLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHTS; i ++ ) {\n\t\tpointLight = pointLights[ i ];\n\t\tgetPointDirectLightIrradiance( pointLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_POINT_LIGHT_SHADOWS )\n\t\tpointLightShadow = pointLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getPointShadow( pointShadowMap[ i ], pointLightShadow.shadowMapSize, pointLightShadow.shadowBias, pointLightShadow.shadowRadius, vPointShadowCoord[ i ], pointLightShadow.shadowCameraNear, pointLightShadow.shadowCameraFar ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_SPOT_LIGHTS > 0 ) && defined( RE_Direct )\n\tSpotLight spotLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHTS; i ++ ) {\n\t\tspotLight = spotLights[ i ];\n\t\tgetSpotDirectLightIrradiance( spotLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_SPOT_LIGHT_SHADOWS )\n\t\tspotLightShadow = spotLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( spotShadowMap[ i ], spotLightShadow.shadowMapSize, spotLightShadow.shadowBias, spotLightShadow.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_DIR_LIGHTS > 0 ) && defined( RE_Direct )\n\tDirectionalLight directionalLight;\n\t#if defined( USE_SHADOWMAP ) && NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLightShadow;\n\t#endif\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHTS; i ++ ) {\n\t\tdirectionalLight = directionalLights[ i ];\n\t\tgetDirectionalDirectLightIrradiance( directionalLight, geometry, directLight );\n\t\t#if defined( USE_SHADOWMAP ) && ( UNROLLED_LOOP_INDEX < NUM_DIR_LIGHT_SHADOWS )\n\t\tdirectionalLightShadow = directionalLightShadows[ i ];\n\t\tdirectLight.color *= all( bvec2( directLight.visible, receiveShadow ) ) ? getShadow( directionalShadowMap[ i ], directionalLightShadow.shadowMapSize, directionalLightShadow.shadowBias, directionalLightShadow.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t\t#endif\n\t\tRE_Direct( directLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if ( NUM_RECT_AREA_LIGHTS > 0 ) && defined( RE_Direct_RectArea )\n\tRectAreaLight rectAreaLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_RECT_AREA_LIGHTS; i ++ ) {\n\t\trectAreaLight = rectAreaLights[ i ];\n\t\tRE_Direct_RectArea( rectAreaLight, geometry, material, reflectedLight );\n\t}\n\t#pragma unroll_loop_end\n#endif\n#if defined( RE_IndirectDiffuse )\n\tvec3 iblIrradiance = vec3( 0.0 );\n\tvec3 irradiance = getAmbientLightIrradiance( ambientLightColor );\n\tirradiance += getLightProbeIrradiance( lightProbe, geometry );\n\t#if ( NUM_HEMI_LIGHTS > 0 )\n\t\t#pragma unroll_loop_start\n\t\tfor ( int i = 0; i < NUM_HEMI_LIGHTS; i ++ ) {\n\t\t\tirradiance += getHemisphereLightIrradiance( hemisphereLights[ i ], geometry );\n\t\t}\n\t\t#pragma unroll_loop_end\n\t#endif\n#endif\n#if defined( RE_IndirectSpecular )\n\tvec3 radiance = vec3( 0.0 );\n\tvec3 clearcoatRadiance = vec3( 0.0 );\n#endif";var lights_fragment_maps="#if defined( RE_IndirectDiffuse )\n\t#ifdef USE_LIGHTMAP\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\tvec3 lightMapIrradiance = lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t\t#ifndef PHYSICALLY_CORRECT_LIGHTS\n\t\t\tlightMapIrradiance *= PI;\n\t\t#endif\n\t\tirradiance += lightMapIrradiance;\n\t#endif\n\t#if defined( USE_ENVMAP ) && defined( STANDARD ) && defined( ENVMAP_TYPE_CUBE_UV )\n\t\tiblIrradiance += getLightProbeIndirectIrradiance( geometry, maxMipLevel );\n\t#endif\n#endif\n#if defined( USE_ENVMAP ) && defined( RE_IndirectSpecular )\n\tradiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.normal, material.specularRoughness, maxMipLevel );\n\t#ifdef CLEARCOAT\n\t\tclearcoatRadiance += getLightProbeIndirectRadiance( geometry.viewDir, geometry.clearcoatNormal, material.clearcoatRoughness, maxMipLevel );\n\t#endif\n#endif";var lights_fragment_end="#if defined( RE_IndirectDiffuse )\n\tRE_IndirectDiffuse( irradiance, geometry, material, reflectedLight );\n#endif\n#if defined( RE_IndirectSpecular )\n\tRE_IndirectSpecular( radiance, iblIrradiance, clearcoatRadiance, geometry, material, reflectedLight );\n#endif";var logdepthbuf_fragment="#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tgl_FragDepthEXT = vIsPerspective == 0.0 ? gl_FragCoord.z : log2( vFragDepth ) * logDepthBufFC * 0.5;\n#endif";var logdepthbuf_pars_fragment="#if defined( USE_LOGDEPTHBUF ) && defined( USE_LOGDEPTHBUF_EXT )\n\tuniform float logDepthBufFC;\n\tvarying float vFragDepth;\n\tvarying float vIsPerspective;\n#endif";var logdepthbuf_pars_vertex="#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvarying float vFragDepth;\n\t\tvarying float vIsPerspective;\n\t#else\n\t\tuniform float logDepthBufFC;\n\t#endif\n#endif";var logdepthbuf_vertex="#ifdef USE_LOGDEPTHBUF\n\t#ifdef USE_LOGDEPTHBUF_EXT\n\t\tvFragDepth = 1.0 + gl_Position.w;\n\t\tvIsPerspective = float( isPerspectiveMatrix( projectionMatrix ) );\n\t#else\n\t\tif ( isPerspectiveMatrix( projectionMatrix ) ) {\n\t\t\tgl_Position.z = log2( max( EPSILON, gl_Position.w + 1.0 ) ) * logDepthBufFC - 1.0;\n\t\t\tgl_Position.z *= gl_Position.w;\n\t\t}\n\t#endif\n#endif";var map_fragment="#ifdef USE_MAP\n\tvec4 texelColor = texture2D( map, vUv );\n\ttexelColor = mapTexelToLinear( texelColor );\n\tdiffuseColor *= texelColor;\n#endif";var map_pars_fragment="#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif";var map_particle_fragment="#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tvec2 uv = ( uvTransform * vec3( gl_PointCoord.x, 1.0 - gl_PointCoord.y, 1 ) ).xy;\n#endif\n#ifdef USE_MAP\n\tvec4 mapTexel = texture2D( map, uv );\n\tdiffuseColor *= mapTexelToLinear( mapTexel );\n#endif\n#ifdef USE_ALPHAMAP\n\tdiffuseColor.a *= texture2D( alphaMap, uv ).g;\n#endif";var map_particle_pars_fragment="#if defined( USE_MAP ) || defined( USE_ALPHAMAP )\n\tuniform mat3 uvTransform;\n#endif\n#ifdef USE_MAP\n\tuniform sampler2D map;\n#endif\n#ifdef USE_ALPHAMAP\n\tuniform sampler2D alphaMap;\n#endif";var metalnessmap_fragment="float metalnessFactor = metalness;\n#ifdef USE_METALNESSMAP\n\tvec4 texelMetalness = texture2D( metalnessMap, vUv );\n\tmetalnessFactor *= texelMetalness.b;\n#endif";var metalnessmap_pars_fragment="#ifdef USE_METALNESSMAP\n\tuniform sampler2D metalnessMap;\n#endif";var morphnormal_vertex="#ifdef USE_MORPHNORMALS\n\tobjectNormal *= morphTargetBaseInfluence;\n\tobjectNormal += morphNormal0 * morphTargetInfluences[ 0 ];\n\tobjectNormal += morphNormal1 * morphTargetInfluences[ 1 ];\n\tobjectNormal += morphNormal2 * morphTargetInfluences[ 2 ];\n\tobjectNormal += morphNormal3 * morphTargetInfluences[ 3 ];\n#endif";var morphtarget_pars_vertex="#ifdef USE_MORPHTARGETS\n\tuniform float morphTargetBaseInfluence;\n\t#ifndef USE_MORPHNORMALS\n\t\tuniform float morphTargetInfluences[ 8 ];\n\t#else\n\t\tuniform float morphTargetInfluences[ 4 ];\n\t#endif\n#endif";var morphtarget_vertex="#ifdef USE_MORPHTARGETS\n\ttransformed *= morphTargetBaseInfluence;\n\ttransformed += morphTarget0 * morphTargetInfluences[ 0 ];\n\ttransformed += morphTarget1 * morphTargetInfluences[ 1 ];\n\ttransformed += morphTarget2 * morphTargetInfluences[ 2 ];\n\ttransformed += morphTarget3 * morphTargetInfluences[ 3 ];\n\t#ifndef USE_MORPHNORMALS\n\t\ttransformed += morphTarget4 * morphTargetInfluences[ 4 ];\n\t\ttransformed += morphTarget5 * morphTargetInfluences[ 5 ];\n\t\ttransformed += morphTarget6 * morphTargetInfluences[ 6 ];\n\t\ttransformed += morphTarget7 * morphTargetInfluences[ 7 ];\n\t#endif\n#endif";var normal_fragment_begin="#ifdef FLAT_SHADED\n\tvec3 fdx = vec3( dFdx( vViewPosition.x ), dFdx( vViewPosition.y ), dFdx( vViewPosition.z ) );\n\tvec3 fdy = vec3( dFdy( vViewPosition.x ), dFdy( vViewPosition.y ), dFdy( vViewPosition.z ) );\n\tvec3 normal = normalize( cross( fdx, fdy ) );\n#else\n\tvec3 normal = normalize( vNormal );\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t#endif\n\t#ifdef USE_TANGENT\n\t\tvec3 tangent = normalize( vTangent );\n\t\tvec3 bitangent = normalize( vBitangent );\n\t\t#ifdef DOUBLE_SIDED\n\t\t\ttangent = tangent * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t\t\tbitangent = bitangent * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t\t#endif\n\t\t#if defined( TANGENTSPACE_NORMALMAP ) || defined( USE_CLEARCOAT_NORMALMAP )\n\t\t\tmat3 vTBN = mat3( tangent, bitangent, normal );\n\t\t#endif\n\t#endif\n#endif\nvec3 geometryNormal = normal;";var normal_fragment_maps="#ifdef OBJECTSPACE_NORMALMAP\n\tnormal = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\t#ifdef FLIP_SIDED\n\t\tnormal = - normal;\n\t#endif\n\t#ifdef DOUBLE_SIDED\n\t\tnormal = normal * ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t#endif\n\tnormal = normalize( normalMatrix * normal );\n#elif defined( TANGENTSPACE_NORMALMAP )\n\tvec3 mapN = texture2D( normalMap, vUv ).xyz * 2.0 - 1.0;\n\tmapN.xy *= normalScale;\n\t#ifdef USE_TANGENT\n\t\tnormal = normalize( vTBN * mapN );\n\t#else\n\t\tnormal = perturbNormal2Arb( -vViewPosition, normal, mapN );\n\t#endif\n#elif defined( USE_BUMPMAP )\n\tnormal = perturbNormalArb( -vViewPosition, normal, dHdxy_fwd() );\n#endif";var normalmap_pars_fragment="#ifdef USE_NORMALMAP\n\tuniform sampler2D normalMap;\n\tuniform vec2 normalScale;\n#endif\n#ifdef OBJECTSPACE_NORMALMAP\n\tuniform mat3 normalMatrix;\n#endif\n#if ! defined ( USE_TANGENT ) && ( defined ( TANGENTSPACE_NORMALMAP ) || defined ( USE_CLEARCOAT_NORMALMAP ) )\n\tvec3 perturbNormal2Arb( vec3 eye_pos, vec3 surf_norm, vec3 mapN ) {\n\t\tvec3 q0 = vec3( dFdx( eye_pos.x ), dFdx( eye_pos.y ), dFdx( eye_pos.z ) );\n\t\tvec3 q1 = vec3( dFdy( eye_pos.x ), dFdy( eye_pos.y ), dFdy( eye_pos.z ) );\n\t\tvec2 st0 = dFdx( vUv.st );\n\t\tvec2 st1 = dFdy( vUv.st );\n\t\tfloat scale = sign( st1.t * st0.s - st0.t * st1.s );\n\t\tvec3 S = normalize( ( q0 * st1.t - q1 * st0.t ) * scale );\n\t\tvec3 T = normalize( ( - q0 * st1.s + q1 * st0.s ) * scale );\n\t\tvec3 N = normalize( surf_norm );\n\t\tmat3 tsn = mat3( S, T, N );\n\t\tmapN.xy *= ( float( gl_FrontFacing ) * 2.0 - 1.0 );\n\t\treturn normalize( tsn * mapN );\n\t}\n#endif";var clearcoat_normal_fragment_begin="#ifdef CLEARCOAT\n\tvec3 clearcoatNormal = geometryNormal;\n#endif";var clearcoat_normal_fragment_maps="#ifdef USE_CLEARCOAT_NORMALMAP\n\tvec3 clearcoatMapN = texture2D( clearcoatNormalMap, vUv ).xyz * 2.0 - 1.0;\n\tclearcoatMapN.xy *= clearcoatNormalScale;\n\t#ifdef USE_TANGENT\n\t\tclearcoatNormal = normalize( vTBN * clearcoatMapN );\n\t#else\n\t\tclearcoatNormal = perturbNormal2Arb( - vViewPosition, clearcoatNormal, clearcoatMapN );\n\t#endif\n#endif";var clearcoat_pars_fragment="#ifdef USE_CLEARCOATMAP\n\tuniform sampler2D clearcoatMap;\n#endif\n#ifdef USE_CLEARCOAT_ROUGHNESSMAP\n\tuniform sampler2D clearcoatRoughnessMap;\n#endif\n#ifdef USE_CLEARCOAT_NORMALMAP\n\tuniform sampler2D clearcoatNormalMap;\n\tuniform vec2 clearcoatNormalScale;\n#endif";var packing="vec3 packNormalToRGB( const in vec3 normal ) {\n\treturn normalize( normal ) * 0.5 + 0.5;\n}\nvec3 unpackRGBToNormal( const in vec3 rgb ) {\n\treturn 2.0 * rgb.xyz - 1.0;\n}\nconst float PackUpscale = 256. / 255.;const float UnpackDownscale = 255. / 256.;\nconst vec3 PackFactors = vec3( 256. * 256. * 256., 256. * 256., 256. );\nconst vec4 UnpackFactors = UnpackDownscale / vec4( PackFactors, 1. );\nconst float ShiftRight8 = 1. / 256.;\nvec4 packDepthToRGBA( const in float v ) {\n\tvec4 r = vec4( fract( v * PackFactors ), v );\n\tr.yzw -= r.xyz * ShiftRight8;\treturn r * PackUpscale;\n}\nfloat unpackRGBAToDepth( const in vec4 v ) {\n\treturn dot( v, UnpackFactors );\n}\nvec4 pack2HalfToRGBA( vec2 v ) {\n\tvec4 r = vec4( v.x, fract( v.x * 255.0 ), v.y, fract( v.y * 255.0 ));\n\treturn vec4( r.x - r.y / 255.0, r.y, r.z - r.w / 255.0, r.w);\n}\nvec2 unpackRGBATo2Half( vec4 v ) {\n\treturn vec2( v.x + ( v.y / 255.0 ), v.z + ( v.w / 255.0 ) );\n}\nfloat viewZToOrthographicDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn ( viewZ + near ) / ( near - far );\n}\nfloat orthographicDepthToViewZ( const in float linearClipZ, const in float near, const in float far ) {\n\treturn linearClipZ * ( near - far ) - near;\n}\nfloat viewZToPerspectiveDepth( const in float viewZ, const in float near, const in float far ) {\n\treturn (( near + viewZ ) * far ) / (( far - near ) * viewZ );\n}\nfloat perspectiveDepthToViewZ( const in float invClipZ, const in float near, const in float far ) {\n\treturn ( near * far ) / ( ( far - near ) * invClipZ - far );\n}";var premultiplied_alpha_fragment="#ifdef PREMULTIPLIED_ALPHA\n\tgl_FragColor.rgb *= gl_FragColor.a;\n#endif";var project_vertex="vec4 mvPosition = vec4( transformed, 1.0 );\n#ifdef USE_INSTANCING\n\tmvPosition = instanceMatrix * mvPosition;\n#endif\nmvPosition = modelViewMatrix * mvPosition;\ngl_Position = projectionMatrix * mvPosition;";var dithering_fragment="#ifdef DITHERING\n\tgl_FragColor.rgb = dithering( gl_FragColor.rgb );\n#endif";var dithering_pars_fragment="#ifdef DITHERING\n\tvec3 dithering( vec3 color ) {\n\t\tfloat grid_position = rand( gl_FragCoord.xy );\n\t\tvec3 dither_shift_RGB = vec3( 0.25 / 255.0, -0.25 / 255.0, 0.25 / 255.0 );\n\t\tdither_shift_RGB = mix( 2.0 * dither_shift_RGB, -2.0 * dither_shift_RGB, grid_position );\n\t\treturn color + dither_shift_RGB;\n\t}\n#endif";var roughnessmap_fragment="float roughnessFactor = roughness;\n#ifdef USE_ROUGHNESSMAP\n\tvec4 texelRoughness = texture2D( roughnessMap, vUv );\n\troughnessFactor *= texelRoughness.g;\n#endif";var roughnessmap_pars_fragment="#ifdef USE_ROUGHNESSMAP\n\tuniform sampler2D roughnessMap;\n#endif";var shadowmap_pars_fragment="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D directionalShadowMap[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D spotShadowMap[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform sampler2D pointShadowMap[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n\tfloat texture2DCompare( sampler2D depths, vec2 uv, float compare ) {\n\t\treturn step( compare, unpackRGBAToDepth( texture2D( depths, uv ) ) );\n\t}\n\tvec2 texture2DDistribution( sampler2D shadow, vec2 uv ) {\n\t\treturn unpackRGBATo2Half( texture2D( shadow, uv ) );\n\t}\n\tfloat VSMShadow (sampler2D shadow, vec2 uv, float compare ){\n\t\tfloat occlusion = 1.0;\n\t\tvec2 distribution = texture2DDistribution( shadow, uv );\n\t\tfloat hard_shadow = step( compare , distribution.x );\n\t\tif (hard_shadow != 1.0 ) {\n\t\t\tfloat distance = compare - distribution.x ;\n\t\t\tfloat variance = max( 0.00000, distribution.y * distribution.y );\n\t\t\tfloat softness_probability = variance / (variance + distance * distance );\t\t\tsoftness_probability = clamp( ( softness_probability - 0.3 ) / ( 0.95 - 0.3 ), 0.0, 1.0 );\t\t\tocclusion = clamp( max( hard_shadow, softness_probability ), 0.0, 1.0 );\n\t\t}\n\t\treturn occlusion;\n\t}\n\tfloat getShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord ) {\n\t\tfloat shadow = 1.0;\n\t\tshadowCoord.xyz /= shadowCoord.w;\n\t\tshadowCoord.z += shadowBias;\n\t\tbvec4 inFrustumVec = bvec4 ( shadowCoord.x >= 0.0, shadowCoord.x <= 1.0, shadowCoord.y >= 0.0, shadowCoord.y <= 1.0 );\n\t\tbool inFrustum = all( inFrustumVec );\n\t\tbvec2 frustumTestVec = bvec2( inFrustum, shadowCoord.z <= 1.0 );\n\t\tbool frustumTest = all( frustumTestVec );\n\t\tif ( frustumTest ) {\n\t\t#if defined( SHADOWMAP_TYPE_PCF )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx0 = - texelSize.x * shadowRadius;\n\t\t\tfloat dy0 = - texelSize.y * shadowRadius;\n\t\t\tfloat dx1 = + texelSize.x * shadowRadius;\n\t\t\tfloat dy1 = + texelSize.y * shadowRadius;\n\t\t\tfloat dx2 = dx0 / 2.0;\n\t\t\tfloat dy2 = dy0 / 2.0;\n\t\t\tfloat dx3 = dx1 / 2.0;\n\t\t\tfloat dy3 = dy1 / 2.0;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy2 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx2, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx3, dy3 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( 0.0, dy1 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, shadowCoord.xy + vec2( dx1, dy1 ), shadowCoord.z )\n\t\t\t) * ( 1.0 / 17.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_PCF_SOFT )\n\t\t\tvec2 texelSize = vec2( 1.0 ) / shadowMapSize;\n\t\t\tfloat dx = texelSize.x;\n\t\t\tfloat dy = texelSize.y;\n\t\t\tvec2 uv = shadowCoord.xy;\n\t\t\tvec2 f = fract( uv * shadowMapSize + 0.5 );\n\t\t\tuv -= f * texelSize;\n\t\t\tshadow = (\n\t\t\t\ttexture2DCompare( shadowMap, uv, shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( dx, 0.0 ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + vec2( 0.0, dy ), shadowCoord.z ) +\n\t\t\t\ttexture2DCompare( shadowMap, uv + texelSize, shadowCoord.z ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, 0.0 ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 0.0 ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( -dx, dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, dy ), shadowCoord.z ),\n\t\t\t\t\t f.x ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( 0.0, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( 0.0, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( texture2DCompare( shadowMap, uv + vec2( dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t texture2DCompare( shadowMap, uv + vec2( dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t f.y ) +\n\t\t\t\tmix( mix( texture2DCompare( shadowMap, uv + vec2( -dx, -dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, -dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t mix( texture2DCompare( shadowMap, uv + vec2( -dx, 2.0 * dy ), shadowCoord.z ), \n\t\t\t\t\t\t  texture2DCompare( shadowMap, uv + vec2( 2.0 * dx, 2.0 * dy ), shadowCoord.z ),\n\t\t\t\t\t\t  f.x ),\n\t\t\t\t\t f.y )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#elif defined( SHADOWMAP_TYPE_VSM )\n\t\t\tshadow = VSMShadow( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#else\n\t\t\tshadow = texture2DCompare( shadowMap, shadowCoord.xy, shadowCoord.z );\n\t\t#endif\n\t\t}\n\t\treturn shadow;\n\t}\n\tvec2 cubeToUV( vec3 v, float texelSizeY ) {\n\t\tvec3 absV = abs( v );\n\t\tfloat scaleToCube = 1.0 / max( absV.x, max( absV.y, absV.z ) );\n\t\tabsV *= scaleToCube;\n\t\tv *= scaleToCube * ( 1.0 - 2.0 * texelSizeY );\n\t\tvec2 planar = v.xy;\n\t\tfloat almostATexel = 1.5 * texelSizeY;\n\t\tfloat almostOne = 1.0 - almostATexel;\n\t\tif ( absV.z >= almostOne ) {\n\t\t\tif ( v.z > 0.0 )\n\t\t\t\tplanar.x = 4.0 - v.x;\n\t\t} else if ( absV.x >= almostOne ) {\n\t\t\tfloat signX = sign( v.x );\n\t\t\tplanar.x = v.z * signX + 2.0 * signX;\n\t\t} else if ( absV.y >= almostOne ) {\n\t\t\tfloat signY = sign( v.y );\n\t\t\tplanar.x = v.x + 2.0 * signY + 2.0;\n\t\t\tplanar.y = v.z * signY - 2.0;\n\t\t}\n\t\treturn vec2( 0.125, 0.25 ) * planar + vec2( 0.375, 0.75 );\n\t}\n\tfloat getPointShadow( sampler2D shadowMap, vec2 shadowMapSize, float shadowBias, float shadowRadius, vec4 shadowCoord, float shadowCameraNear, float shadowCameraFar ) {\n\t\tvec2 texelSize = vec2( 1.0 ) / ( shadowMapSize * vec2( 4.0, 2.0 ) );\n\t\tvec3 lightToPosition = shadowCoord.xyz;\n\t\tfloat dp = ( length( lightToPosition ) - shadowCameraNear ) / ( shadowCameraFar - shadowCameraNear );\t\tdp += shadowBias;\n\t\tvec3 bd3D = normalize( lightToPosition );\n\t\t#if defined( SHADOWMAP_TYPE_PCF ) || defined( SHADOWMAP_TYPE_PCF_SOFT ) || defined( SHADOWMAP_TYPE_VSM )\n\t\t\tvec2 offset = vec2( - 1, 1 ) * shadowRadius * texelSize.y;\n\t\t\treturn (\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yyx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxy, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.xxx, texelSize.y ), dp ) +\n\t\t\t\ttexture2DCompare( shadowMap, cubeToUV( bd3D + offset.yxx, texelSize.y ), dp )\n\t\t\t) * ( 1.0 / 9.0 );\n\t\t#else\n\t\t\treturn texture2DCompare( shadowMap, cubeToUV( bd3D, texelSize.y ), dp );\n\t\t#endif\n\t}\n#endif";var shadowmap_pars_vertex="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t\tuniform mat4 directionalShadowMatrix[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tvarying vec4 vDirectionalShadowCoord[ NUM_DIR_LIGHT_SHADOWS ];\n\t\tstruct DirectionalLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform DirectionalLightShadow directionalLightShadows[ NUM_DIR_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 spotShadowMatrix[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vSpotShadowCoord[ NUM_SPOT_LIGHT_SHADOWS ];\n\t\tstruct SpotLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t};\n\t\tuniform SpotLightShadow spotLightShadows[ NUM_SPOT_LIGHT_SHADOWS ];\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t\tuniform mat4 pointShadowMatrix[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tvarying vec4 vPointShadowCoord[ NUM_POINT_LIGHT_SHADOWS ];\n\t\tstruct PointLightShadow {\n\t\t\tfloat shadowBias;\n\t\t\tfloat shadowNormalBias;\n\t\t\tfloat shadowRadius;\n\t\t\tvec2 shadowMapSize;\n\t\t\tfloat shadowCameraNear;\n\t\t\tfloat shadowCameraFar;\n\t\t};\n\t\tuniform PointLightShadow pointLightShadows[ NUM_POINT_LIGHT_SHADOWS ];\n\t#endif\n#endif";var shadowmap_vertex="#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0 || NUM_SPOT_LIGHT_SHADOWS > 0 || NUM_POINT_LIGHT_SHADOWS > 0\n\t\tvec3 shadowWorldNormal = inverseTransformDirection( transformedNormal, viewMatrix );\n\t\tvec4 shadowWorldPosition;\n\t#endif\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * directionalLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvDirectionalShadowCoord[ i ] = directionalShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * spotLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvSpotShadowCoord[ i ] = spotShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tshadowWorldPosition = worldPosition + vec4( shadowWorldNormal * pointLightShadows[ i ].shadowNormalBias, 0 );\n\t\tvPointShadowCoord[ i ] = pointShadowMatrix[ i ] * shadowWorldPosition;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n#endif";var shadowmask_pars_fragment="float getShadowMask() {\n\tfloat shadow = 1.0;\n\t#ifdef USE_SHADOWMAP\n\t#if NUM_DIR_LIGHT_SHADOWS > 0\n\tDirectionalLightShadow directionalLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_DIR_LIGHT_SHADOWS; i ++ ) {\n\t\tdirectionalLight = directionalLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( directionalShadowMap[ i ], directionalLight.shadowMapSize, directionalLight.shadowBias, directionalLight.shadowRadius, vDirectionalShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_SPOT_LIGHT_SHADOWS > 0\n\tSpotLightShadow spotLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_SPOT_LIGHT_SHADOWS; i ++ ) {\n\t\tspotLight = spotLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getShadow( spotShadowMap[ i ], spotLight.shadowMapSize, spotLight.shadowBias, spotLight.shadowRadius, vSpotShadowCoord[ i ] ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#if NUM_POINT_LIGHT_SHADOWS > 0\n\tPointLightShadow pointLight;\n\t#pragma unroll_loop_start\n\tfor ( int i = 0; i < NUM_POINT_LIGHT_SHADOWS; i ++ ) {\n\t\tpointLight = pointLightShadows[ i ];\n\t\tshadow *= receiveShadow ? getPointShadow( pointShadowMap[ i ], pointLight.shadowMapSize, pointLight.shadowBias, pointLight.shadowRadius, vPointShadowCoord[ i ], pointLight.shadowCameraNear, pointLight.shadowCameraFar ) : 1.0;\n\t}\n\t#pragma unroll_loop_end\n\t#endif\n\t#endif\n\treturn shadow;\n}";var skinbase_vertex="#ifdef USE_SKINNING\n\tmat4 boneMatX = getBoneMatrix( skinIndex.x );\n\tmat4 boneMatY = getBoneMatrix( skinIndex.y );\n\tmat4 boneMatZ = getBoneMatrix( skinIndex.z );\n\tmat4 boneMatW = getBoneMatrix( skinIndex.w );\n#endif";var skinning_pars_vertex="#ifdef USE_SKINNING\n\tuniform mat4 bindMatrix;\n\tuniform mat4 bindMatrixInverse;\n\t#ifdef BONE_TEXTURE\n\t\tuniform highp sampler2D boneTexture;\n\t\tuniform int boneTextureSize;\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tfloat j = i * 4.0;\n\t\t\tfloat x = mod( j, float( boneTextureSize ) );\n\t\t\tfloat y = floor( j / float( boneTextureSize ) );\n\t\t\tfloat dx = 1.0 / float( boneTextureSize );\n\t\t\tfloat dy = 1.0 / float( boneTextureSize );\n\t\t\ty = dy * ( y + 0.5 );\n\t\t\tvec4 v1 = texture2D( boneTexture, vec2( dx * ( x + 0.5 ), y ) );\n\t\t\tvec4 v2 = texture2D( boneTexture, vec2( dx * ( x + 1.5 ), y ) );\n\t\t\tvec4 v3 = texture2D( boneTexture, vec2( dx * ( x + 2.5 ), y ) );\n\t\t\tvec4 v4 = texture2D( boneTexture, vec2( dx * ( x + 3.5 ), y ) );\n\t\t\tmat4 bone = mat4( v1, v2, v3, v4 );\n\t\t\treturn bone;\n\t\t}\n\t#else\n\t\tuniform mat4 boneMatrices[ MAX_BONES ];\n\t\tmat4 getBoneMatrix( const in float i ) {\n\t\t\tmat4 bone = boneMatrices[ int(i) ];\n\t\t\treturn bone;\n\t\t}\n\t#endif\n#endif";var skinning_vertex="#ifdef USE_SKINNING\n\tvec4 skinVertex = bindMatrix * vec4( transformed, 1.0 );\n\tvec4 skinned = vec4( 0.0 );\n\tskinned += boneMatX * skinVertex * skinWeight.x;\n\tskinned += boneMatY * skinVertex * skinWeight.y;\n\tskinned += boneMatZ * skinVertex * skinWeight.z;\n\tskinned += boneMatW * skinVertex * skinWeight.w;\n\ttransformed = ( bindMatrixInverse * skinned ).xyz;\n#endif";var skinnormal_vertex="#ifdef USE_SKINNING\n\tmat4 skinMatrix = mat4( 0.0 );\n\tskinMatrix += skinWeight.x * boneMatX;\n\tskinMatrix += skinWeight.y * boneMatY;\n\tskinMatrix += skinWeight.z * boneMatZ;\n\tskinMatrix += skinWeight.w * boneMatW;\n\tskinMatrix = bindMatrixInverse * skinMatrix * bindMatrix;\n\tobjectNormal = vec4( skinMatrix * vec4( objectNormal, 0.0 ) ).xyz;\n\t#ifdef USE_TANGENT\n\t\tobjectTangent = vec4( skinMatrix * vec4( objectTangent, 0.0 ) ).xyz;\n\t#endif\n#endif";var specularmap_fragment="float specularStrength;\n#ifdef USE_SPECULARMAP\n\tvec4 texelSpecular = texture2D( specularMap, vUv );\n\tspecularStrength = texelSpecular.r;\n#else\n\tspecularStrength = 1.0;\n#endif";var specularmap_pars_fragment="#ifdef USE_SPECULARMAP\n\tuniform sampler2D specularMap;\n#endif";var tonemapping_fragment="#if defined( TONE_MAPPING )\n\tgl_FragColor.rgb = toneMapping( gl_FragColor.rgb );\n#endif";var tonemapping_pars_fragment="#ifndef saturate\n#define saturate(a) clamp( a, 0.0, 1.0 )\n#endif\nuniform float toneMappingExposure;\nvec3 LinearToneMapping( vec3 color ) {\n\treturn toneMappingExposure * color;\n}\nvec3 ReinhardToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\treturn saturate( color / ( vec3( 1.0 ) + color ) );\n}\nvec3 OptimizedCineonToneMapping( vec3 color ) {\n\tcolor *= toneMappingExposure;\n\tcolor = max( vec3( 0.0 ), color - 0.004 );\n\treturn pow( ( color * ( 6.2 * color + 0.5 ) ) / ( color * ( 6.2 * color + 1.7 ) + 0.06 ), vec3( 2.2 ) );\n}\nvec3 RRTAndODTFit( vec3 v ) {\n\tvec3 a = v * ( v + 0.0245786 ) - 0.000090537;\n\tvec3 b = v * ( 0.983729 * v + 0.4329510 ) + 0.238081;\n\treturn a / b;\n}\nvec3 ACESFilmicToneMapping( vec3 color ) {\n\tconst mat3 ACESInputMat = mat3(\n\t\tvec3( 0.59719, 0.07600, 0.02840 ),\t\tvec3( 0.35458, 0.90834, 0.13383 ),\n\t\tvec3( 0.04823, 0.01566, 0.83777 )\n\t);\n\tconst mat3 ACESOutputMat = mat3(\n\t\tvec3(  1.60475, -0.10208, -0.00327 ),\t\tvec3( -0.53108,  1.10813, -0.07276 ),\n\t\tvec3( -0.07367, -0.00605,  1.07602 )\n\t);\n\tcolor *= toneMappingExposure / 0.6;\n\tcolor = ACESInputMat * color;\n\tcolor = RRTAndODTFit( color );\n\tcolor = ACESOutputMat * color;\n\treturn saturate( color );\n}\nvec3 CustomToneMapping( vec3 color ) { return color; }";var transmissionmap_fragment="#ifdef USE_TRANSMISSIONMAP\n\ttotalTransmission *= texture2D( transmissionMap, vUv ).r;\n#endif";var transmissionmap_pars_fragment="#ifdef USE_TRANSMISSIONMAP\n\tuniform sampler2D transmissionMap;\n#endif";var uv_pars_fragment="#if ( defined( USE_UV ) && ! defined( UVS_VERTEX_ONLY ) )\n\tvarying vec2 vUv;\n#endif";var uv_pars_vertex="#ifdef USE_UV\n\t#ifdef UVS_VERTEX_ONLY\n\t\tvec2 vUv;\n\t#else\n\t\tvarying vec2 vUv;\n\t#endif\n\tuniform mat3 uvTransform;\n#endif";var uv_vertex="#ifdef USE_UV\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n#endif";var uv2_pars_fragment="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvarying vec2 vUv2;\n#endif";var uv2_pars_vertex="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tattribute vec2 uv2;\n\tvarying vec2 vUv2;\n\tuniform mat3 uv2Transform;\n#endif";var uv2_vertex="#if defined( USE_LIGHTMAP ) || defined( USE_AOMAP )\n\tvUv2 = ( uv2Transform * vec3( uv2, 1 ) ).xy;\n#endif";var worldpos_vertex="#if defined( USE_ENVMAP ) || defined( DISTANCE ) || defined ( USE_SHADOWMAP )\n\tvec4 worldPosition = vec4( transformed, 1.0 );\n\t#ifdef USE_INSTANCING\n\t\tworldPosition = instanceMatrix * worldPosition;\n\t#endif\n\tworldPosition = modelMatrix * worldPosition;\n#endif";var background_frag="uniform sampler2D t2D;\nvarying vec2 vUv;\nvoid main() {\n\tvec4 texColor = texture2D( t2D, vUv );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";var background_vert="varying vec2 vUv;\nuniform mat3 uvTransform;\nvoid main() {\n\tvUv = ( uvTransform * vec3( uv, 1 ) ).xy;\n\tgl_Position = vec4( position.xy, 1.0, 1.0 );\n}";var cube_frag="#include <envmap_common_pars_fragment>\nuniform float opacity;\nvarying vec3 vWorldDirection;\n#include <cube_uv_reflection_fragment>\nvoid main() {\n\tvec3 vReflect = vWorldDirection;\n\t#include <envmap_fragment>\n\tgl_FragColor = envColor;\n\tgl_FragColor.a *= opacity;\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";var cube_vert="varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\tgl_Position.z = gl_Position.w;\n}";var depth_frag="#if DEPTH_PACKING == 3200\n\tuniform float opacity;\n#endif\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#if DEPTH_PACKING == 3200\n\t\tdiffuseColor.a = opacity;\n\t#endif\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <logdepthbuf_fragment>\n\tfloat fragCoordZ = 0.5 * vHighPrecisionZW[0] / vHighPrecisionZW[1] + 0.5;\n\t#if DEPTH_PACKING == 3200\n\t\tgl_FragColor = vec4( vec3( 1.0 - fragCoordZ ), opacity );\n\t#elif DEPTH_PACKING == 3201\n\t\tgl_FragColor = packDepthToRGBA( fragCoordZ );\n\t#endif\n}";var depth_vert="#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvarying vec2 vHighPrecisionZW;\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvHighPrecisionZW = gl_Position.zw;\n}";var distanceRGBA_frag="#define DISTANCE\nuniform vec3 referencePosition;\nuniform float nearDistance;\nuniform float farDistance;\nvarying vec3 vWorldPosition;\n#include <common>\n#include <packing>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main () {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( 1.0 );\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\tfloat dist = length( vWorldPosition - referencePosition );\n\tdist = ( dist - nearDistance ) / ( farDistance - nearDistance );\n\tdist = saturate( dist );\n\tgl_FragColor = packDepthToRGBA( dist );\n}";var distanceRGBA_vert="#define DISTANCE\nvarying vec3 vWorldPosition;\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_DISPLACEMENTMAP\n\t\t#include <beginnormal_vertex>\n\t\t#include <morphnormal_vertex>\n\t\t#include <skinnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\tvWorldPosition = worldPosition.xyz;\n}";var equirect_frag="uniform sampler2D tEquirect;\nvarying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvec3 direction = normalize( vWorldDirection );\n\tvec2 sampleUV = equirectUv( direction );\n\tvec4 texColor = texture2D( tEquirect, sampleUV );\n\tgl_FragColor = mapTexelToLinear( texColor );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n}";var equirect_vert="varying vec3 vWorldDirection;\n#include <common>\nvoid main() {\n\tvWorldDirection = transformDirection( position, modelMatrix );\n\t#include <begin_vertex>\n\t#include <project_vertex>\n}";var linedashed_frag="uniform vec3 diffuse;\nuniform float opacity;\nuniform float dashSize;\nuniform float totalSize;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tif ( mod( vLineDistance, totalSize ) > dashSize ) {\n\t\tdiscard;\n\t}\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <color_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}";var linedashed_vert="uniform float scale;\nattribute float lineDistance;\nvarying float vLineDistance;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\tvLineDistance = scale * lineDistance;\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";var meshbasic_frag="uniform vec3 diffuse;\nuniform float opacity;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\t#ifdef USE_LIGHTMAP\n\t\n\t\tvec4 lightMapTexel= texture2D( lightMap, vUv2 );\n\t\treflectedLight.indirectDiffuse += lightMapTexelToLinear( lightMapTexel ).rgb * lightMapIntensity;\n\t#else\n\t\treflectedLight.indirectDiffuse += vec3( 1.0 );\n\t#endif\n\t#include <aomap_fragment>\n\treflectedLight.indirectDiffuse *= diffuseColor.rgb;\n\tvec3 outgoingLight = reflectedLight.indirectDiffuse;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";var meshbasic_vert="#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <skinbase_vertex>\n\t#ifdef USE_ENVMAP\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <worldpos_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <envmap_vertex>\n\t#include <fog_vertex>\n}";var meshlambert_frag="uniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <fog_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <emissivemap_fragment>\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.indirectDiffuse += ( gl_FrontFacing ) ? vIndirectFront : vIndirectBack;\n\t#else\n\t\treflectedLight.indirectDiffuse += vIndirectFront;\n\t#endif\n\t#include <lightmap_fragment>\n\treflectedLight.indirectDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb );\n\t#ifdef DOUBLE_SIDED\n\t\treflectedLight.directDiffuse = ( gl_FrontFacing ) ? vLightFront : vLightBack;\n\t#else\n\t\treflectedLight.directDiffuse = vLightFront;\n\t#endif\n\treflectedLight.directDiffuse *= BRDF_Diffuse_Lambert( diffuseColor.rgb ) * getShadowMask();\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";var meshlambert_vert="#define LAMBERT\nvarying vec3 vLightFront;\nvarying vec3 vIndirectFront;\n#ifdef DOUBLE_SIDED\n\tvarying vec3 vLightBack;\n\tvarying vec3 vIndirectBack;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <envmap_pars_vertex>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <lights_lambert_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";var meshmatcap_frag="#define MATCAP\nuniform vec3 diffuse;\nuniform float opacity;\nuniform sampler2D matcap;\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tvec3 viewDir = normalize( vViewPosition );\n\tvec3 x = normalize( vec3( viewDir.z, 0.0, - viewDir.x ) );\n\tvec3 y = cross( viewDir, x );\n\tvec2 uv = vec2( dot( x, normal ), dot( y, normal ) ) * 0.495 + 0.5;\n\t#ifdef USE_MATCAP\n\t\tvec4 matcapColor = texture2D( matcap, uv );\n\t\tmatcapColor = matcapTexelToLinear( matcapColor );\n\t#else\n\t\tvec4 matcapColor = vec4( 1.0 );\n\t#endif\n\tvec3 outgoingLight = diffuseColor.rgb * matcapColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";var meshmatcap_vert="#define MATCAP\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <color_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#ifndef FLAT_SHADED\n\t\tvNormal = normalize( transformedNormal );\n\t#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n\tvViewPosition = - mvPosition.xyz;\n}";var meshtoon_frag="#define TOON\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <gradientmap_pars_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_toon_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_toon_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + totalEmissiveRadiance;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";var meshtoon_vert="#define TOON\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";var meshphong_frag="#define PHONG\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform vec3 specular;\nuniform float shininess;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_pars_fragment>\n#include <cube_uv_reflection_fragment>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <lights_phong_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <specularmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <specularmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <lights_phong_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#include <envmap_fragment>\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";var meshphong_vert="#define PHONG\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <envmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <envmap_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";var meshphysical_frag="#define STANDARD\n#ifdef PHYSICAL\n\t#define REFLECTIVITY\n\t#define CLEARCOAT\n\t#define TRANSMISSION\n#endif\nuniform vec3 diffuse;\nuniform vec3 emissive;\nuniform float roughness;\nuniform float metalness;\nuniform float opacity;\n#ifdef TRANSMISSION\n\tuniform float transmission;\n#endif\n#ifdef REFLECTIVITY\n\tuniform float reflectivity;\n#endif\n#ifdef CLEARCOAT\n\tuniform float clearcoat;\n\tuniform float clearcoatRoughness;\n#endif\n#ifdef USE_SHEEN\n\tuniform vec3 sheen;\n#endif\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <packing>\n#include <dithering_pars_fragment>\n#include <color_pars_fragment>\n#include <uv_pars_fragment>\n#include <uv2_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <aomap_pars_fragment>\n#include <lightmap_pars_fragment>\n#include <emissivemap_pars_fragment>\n#include <transmissionmap_pars_fragment>\n#include <bsdfs>\n#include <cube_uv_reflection_fragment>\n#include <envmap_common_pars_fragment>\n#include <envmap_physical_pars_fragment>\n#include <fog_pars_fragment>\n#include <lights_pars_begin>\n#include <lights_physical_pars_fragment>\n#include <shadowmap_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <clearcoat_pars_fragment>\n#include <roughnessmap_pars_fragment>\n#include <metalnessmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\tReflectedLight reflectedLight = ReflectedLight( vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ), vec3( 0.0 ) );\n\tvec3 totalEmissiveRadiance = emissive;\n\t#ifdef TRANSMISSION\n\t\tfloat totalTransmission = transmission;\n\t#endif\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <color_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\t#include <roughnessmap_fragment>\n\t#include <metalnessmap_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\t#include <clearcoat_normal_fragment_begin>\n\t#include <clearcoat_normal_fragment_maps>\n\t#include <emissivemap_fragment>\n\t#include <transmissionmap_fragment>\n\t#include <lights_physical_fragment>\n\t#include <lights_fragment_begin>\n\t#include <lights_fragment_maps>\n\t#include <lights_fragment_end>\n\t#include <aomap_fragment>\n\tvec3 outgoingLight = reflectedLight.directDiffuse + reflectedLight.indirectDiffuse + reflectedLight.directSpecular + reflectedLight.indirectSpecular + totalEmissiveRadiance;\n\t#ifdef TRANSMISSION\n\t\tdiffuseColor.a *= mix( saturate( 1. - totalTransmission + linearToRelativeLuminance( reflectedLight.directSpecular + reflectedLight.indirectSpecular ) ), 1.0, metalness );\n\t#endif\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n\t#include <dithering_fragment>\n}";var meshphysical_vert="#define STANDARD\nvarying vec3 vViewPosition;\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <uv2_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <shadowmap_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <uv2_vertex>\n\t#include <color_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\tvViewPosition = - mvPosition.xyz;\n\t#include <worldpos_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";var normal_frag="#define NORMAL\nuniform float opacity;\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <packing>\n#include <uv_pars_fragment>\n#include <bumpmap_pars_fragment>\n#include <normalmap_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\t#include <logdepthbuf_fragment>\n\t#include <normal_fragment_begin>\n\t#include <normal_fragment_maps>\n\tgl_FragColor = vec4( packNormalToRGB( normal ), opacity );\n}";var normal_vert="#define NORMAL\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvarying vec3 vViewPosition;\n#endif\n#ifndef FLAT_SHADED\n\tvarying vec3 vNormal;\n\t#ifdef USE_TANGENT\n\t\tvarying vec3 vTangent;\n\t\tvarying vec3 vBitangent;\n\t#endif\n#endif\n#include <common>\n#include <uv_pars_vertex>\n#include <displacementmap_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <skinning_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n#ifndef FLAT_SHADED\n\tvNormal = normalize( transformedNormal );\n\t#ifdef USE_TANGENT\n\t\tvTangent = normalize( transformedTangent );\n\t\tvBitangent = normalize( cross( vNormal, vTangent ) * tangent.w );\n\t#endif\n#endif\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <skinning_vertex>\n\t#include <displacementmap_vertex>\n\t#include <project_vertex>\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n#if defined( FLAT_SHADED ) || defined( USE_BUMPMAP ) || defined( TANGENTSPACE_NORMALMAP )\n\tvViewPosition = - mvPosition.xyz;\n#endif\n}";var points_frag="uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <color_pars_fragment>\n#include <map_particle_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_particle_fragment>\n\t#include <color_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n\t#include <premultiplied_alpha_fragment>\n}";var points_vert="uniform float size;\nuniform float scale;\n#include <common>\n#include <color_pars_vertex>\n#include <fog_pars_vertex>\n#include <morphtarget_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <color_vertex>\n\t#include <begin_vertex>\n\t#include <morphtarget_vertex>\n\t#include <project_vertex>\n\tgl_PointSize = size;\n\t#ifdef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) gl_PointSize *= ( scale / - mvPosition.z );\n\t#endif\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <worldpos_vertex>\n\t#include <fog_vertex>\n}";var shadow_frag="uniform vec3 color;\nuniform float opacity;\n#include <common>\n#include <packing>\n#include <fog_pars_fragment>\n#include <bsdfs>\n#include <lights_pars_begin>\n#include <shadowmap_pars_fragment>\n#include <shadowmask_pars_fragment>\nvoid main() {\n\tgl_FragColor = vec4( color, opacity * ( 1.0 - getShadowMask() ) );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}";var shadow_vert="#include <common>\n#include <fog_pars_vertex>\n#include <shadowmap_pars_vertex>\nvoid main() {\n\t#include <begin_vertex>\n\t#include <project_vertex>\n\t#include <worldpos_vertex>\n\t#include <beginnormal_vertex>\n\t#include <morphnormal_vertex>\n\t#include <skinbase_vertex>\n\t#include <skinnormal_vertex>\n\t#include <defaultnormal_vertex>\n\t#include <shadowmap_vertex>\n\t#include <fog_vertex>\n}";var sprite_frag="uniform vec3 diffuse;\nuniform float opacity;\n#include <common>\n#include <uv_pars_fragment>\n#include <map_pars_fragment>\n#include <alphamap_pars_fragment>\n#include <fog_pars_fragment>\n#include <logdepthbuf_pars_fragment>\n#include <clipping_planes_pars_fragment>\nvoid main() {\n\t#include <clipping_planes_fragment>\n\tvec3 outgoingLight = vec3( 0.0 );\n\tvec4 diffuseColor = vec4( diffuse, opacity );\n\t#include <logdepthbuf_fragment>\n\t#include <map_fragment>\n\t#include <alphamap_fragment>\n\t#include <alphatest_fragment>\n\toutgoingLight = diffuseColor.rgb;\n\tgl_FragColor = vec4( outgoingLight, diffuseColor.a );\n\t#include <tonemapping_fragment>\n\t#include <encodings_fragment>\n\t#include <fog_fragment>\n}";var sprite_vert="uniform float rotation;\nuniform vec2 center;\n#include <common>\n#include <uv_pars_vertex>\n#include <fog_pars_vertex>\n#include <logdepthbuf_pars_vertex>\n#include <clipping_planes_pars_vertex>\nvoid main() {\n\t#include <uv_vertex>\n\tvec4 mvPosition = modelViewMatrix * vec4( 0.0, 0.0, 0.0, 1.0 );\n\tvec2 scale;\n\tscale.x = length( vec3( modelMatrix[ 0 ].x, modelMatrix[ 0 ].y, modelMatrix[ 0 ].z ) );\n\tscale.y = length( vec3( modelMatrix[ 1 ].x, modelMatrix[ 1 ].y, modelMatrix[ 1 ].z ) );\n\t#ifndef USE_SIZEATTENUATION\n\t\tbool isPerspective = isPerspectiveMatrix( projectionMatrix );\n\t\tif ( isPerspective ) scale *= - mvPosition.z;\n\t#endif\n\tvec2 alignedPosition = ( position.xy - ( center - vec2( 0.5 ) ) ) * scale;\n\tvec2 rotatedPosition;\n\trotatedPosition.x = cos( rotation ) * alignedPosition.x - sin( rotation ) * alignedPosition.y;\n\trotatedPosition.y = sin( rotation ) * alignedPosition.x + cos( rotation ) * alignedPosition.y;\n\tmvPosition.xy += rotatedPosition;\n\tgl_Position = projectionMatrix * mvPosition;\n\t#include <logdepthbuf_vertex>\n\t#include <clipping_planes_vertex>\n\t#include <fog_vertex>\n}";var ShaderChunk={alphamap_fragment:alphamap_fragment,alphamap_pars_fragment:alphamap_pars_fragment,alphatest_fragment:alphatest_fragment,aomap_fragment:aomap_fragment,aomap_pars_fragment:aomap_pars_fragment,begin_vertex:begin_vertex,beginnormal_vertex:beginnormal_vertex,bsdfs:bsdfs,bumpmap_pars_fragment:bumpmap_pars_fragment,clipping_planes_fragment:clipping_planes_fragment,clipping_planes_pars_fragment:clipping_planes_pars_fragment,clipping_planes_pars_vertex:clipping_planes_pars_vertex,clipping_planes_vertex:clipping_planes_vertex,color_fragment:color_fragment,color_pars_fragment:color_pars_fragment,color_pars_vertex:color_pars_vertex,color_vertex:color_vertex,common:common,cube_uv_reflection_fragment:cube_uv_reflection_fragment,defaultnormal_vertex:defaultnormal_vertex,displacementmap_pars_vertex:displacementmap_pars_vertex,displacementmap_vertex:displacementmap_vertex,emissivemap_fragment:emissivemap_fragment,emissivemap_pars_fragment:emissivemap_pars_fragment,encodings_fragment:encodings_fragment,encodings_pars_fragment:encodings_pars_fragment,envmap_fragment:envmap_fragment,envmap_common_pars_fragment:envmap_common_pars_fragment,envmap_pars_fragment:envmap_pars_fragment,envmap_pars_vertex:envmap_pars_vertex,envmap_physical_pars_fragment:envmap_physical_pars_fragment,envmap_vertex:envmap_vertex,fog_vertex:fog_vertex,fog_pars_vertex:fog_pars_vertex,fog_fragment:fog_fragment,fog_pars_fragment:fog_pars_fragment,gradientmap_pars_fragment:gradientmap_pars_fragment,lightmap_fragment:lightmap_fragment,lightmap_pars_fragment:lightmap_pars_fragment,lights_lambert_vertex:lights_lambert_vertex,lights_pars_begin:lights_pars_begin,lights_toon_fragment:lights_toon_fragment,lights_toon_pars_fragment:lights_toon_pars_fragment,lights_phong_fragment:lights_phong_fragment,lights_phong_pars_fragment:lights_phong_pars_fragment,lights_physical_fragment:lights_physical_fragment,lights_physical_pars_fragment:lights_physical_pars_fragment,lights_fragment_begin:lights_fragment_begin,lights_fragment_maps:lights_fragment_maps,lights_fragment_end:lights_fragment_end,logdepthbuf_fragment:logdepthbuf_fragment,logdepthbuf_pars_fragment:logdepthbuf_pars_fragment,logdepthbuf_pars_vertex:logdepthbuf_pars_vertex,logdepthbuf_vertex:logdepthbuf_vertex,map_fragment:map_fragment,map_pars_fragment:map_pars_fragment,map_particle_fragment:map_particle_fragment,map_particle_pars_fragment:map_particle_pars_fragment,metalnessmap_fragment:metalnessmap_fragment,metalnessmap_pars_fragment:metalnessmap_pars_fragment,morphnormal_vertex:morphnormal_vertex,morphtarget_pars_vertex:morphtarget_pars_vertex,morphtarget_vertex:morphtarget_vertex,normal_fragment_begin:normal_fragment_begin,normal_fragment_maps:normal_fragment_maps,normalmap_pars_fragment:normalmap_pars_fragment,clearcoat_normal_fragment_begin:clearcoat_normal_fragment_begin,clearcoat_normal_fragment_maps:clearcoat_normal_fragment_maps,clearcoat_pars_fragment:clearcoat_pars_fragment,packing:packing,premultiplied_alpha_fragment:premultiplied_alpha_fragment,project_vertex:project_vertex,dithering_fragment:dithering_fragment,dithering_pars_fragment:dithering_pars_fragment,roughnessmap_fragment:roughnessmap_fragment,roughnessmap_pars_fragment:roughnessmap_pars_fragment,shadowmap_pars_fragment:shadowmap_pars_fragment,shadowmap_pars_vertex:shadowmap_pars_vertex,shadowmap_vertex:shadowmap_vertex,shadowmask_pars_fragment:shadowmask_pars_fragment,skinbase_vertex:skinbase_vertex,skinning_pars_vertex:skinning_pars_vertex,skinning_vertex:skinning_vertex,skinnormal_vertex:skinnormal_vertex,specularmap_fragment:specularmap_fragment,specularmap_pars_fragment:specularmap_pars_fragment,tonemapping_fragment:tonemapping_fragment,tonemapping_pars_fragment:tonemapping_pars_fragment,transmissionmap_fragment:transmissionmap_fragment,transmissionmap_pars_fragment:transmissionmap_pars_fragment,uv_pars_fragment:uv_pars_fragment,uv_pars_vertex:uv_pars_vertex,uv_vertex:uv_vertex,uv2_pars_fragment:uv2_pars_fragment,uv2_pars_vertex:uv2_pars_vertex,uv2_vertex:uv2_vertex,worldpos_vertex:worldpos_vertex,background_frag:background_frag,background_vert:background_vert,cube_frag:cube_frag,cube_vert:cube_vert,depth_frag:depth_frag,depth_vert:depth_vert,distanceRGBA_frag:distanceRGBA_frag,distanceRGBA_vert:distanceRGBA_vert,equirect_frag:equirect_frag,equirect_vert:equirect_vert,linedashed_frag:linedashed_frag,linedashed_vert:linedashed_vert,meshbasic_frag:meshbasic_frag,meshbasic_vert:meshbasic_vert,meshlambert_frag:meshlambert_frag,meshlambert_vert:meshlambert_vert,meshmatcap_frag:meshmatcap_frag,meshmatcap_vert:meshmatcap_vert,meshtoon_frag:meshtoon_frag,meshtoon_vert:meshtoon_vert,meshphong_frag:meshphong_frag,meshphong_vert:meshphong_vert,meshphysical_frag:meshphysical_frag,meshphysical_vert:meshphysical_vert,normal_frag:normal_frag,normal_vert:normal_vert,points_frag:points_frag,points_vert:points_vert,shadow_frag:shadow_frag,shadow_vert:shadow_vert,sprite_frag:sprite_frag,sprite_vert:sprite_vert};/**
 * Uniforms library for shared webgl shaders
 */var UniformsLib={common:{diffuse:{value:new Color(0xeeeeee)},opacity:{value:1.0},map:{value:null},uvTransform:{value:new Matrix3()},uv2Transform:{value:new Matrix3()},alphaMap:{value:null}},specularmap:{specularMap:{value:null}},envmap:{envMap:{value:null},flipEnvMap:{value:-1},reflectivity:{value:1.0},refractionRatio:{value:0.98},maxMipLevel:{value:0}},aomap:{aoMap:{value:null},aoMapIntensity:{value:1}},lightmap:{lightMap:{value:null},lightMapIntensity:{value:1}},emissivemap:{emissiveMap:{value:null}},bumpmap:{bumpMap:{value:null},bumpScale:{value:1}},normalmap:{normalMap:{value:null},normalScale:{value:new Vector2(1,1)}},displacementmap:{displacementMap:{value:null},displacementScale:{value:1},displacementBias:{value:0}},roughnessmap:{roughnessMap:{value:null}},metalnessmap:{metalnessMap:{value:null}},gradientmap:{gradientMap:{value:null}},fog:{fogDensity:{value:0.00025},fogNear:{value:1},fogFar:{value:2000},fogColor:{value:new Color(0xffffff)}},lights:{ambientLightColor:{value:[]},lightProbe:{value:[]},directionalLights:{value:[],properties:{direction:{},color:{}}},directionalLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},directionalShadowMap:{value:[]},directionalShadowMatrix:{value:[]},spotLights:{value:[],properties:{color:{},position:{},direction:{},distance:{},coneCos:{},penumbraCos:{},decay:{}}},spotLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{}}},spotShadowMap:{value:[]},spotShadowMatrix:{value:[]},pointLights:{value:[],properties:{color:{},position:{},decay:{},distance:{}}},pointLightShadows:{value:[],properties:{shadowBias:{},shadowNormalBias:{},shadowRadius:{},shadowMapSize:{},shadowCameraNear:{},shadowCameraFar:{}}},pointShadowMap:{value:[]},pointShadowMatrix:{value:[]},hemisphereLights:{value:[],properties:{direction:{},skyColor:{},groundColor:{}}},// TODO (abelnation): RectAreaLight BRDF data needs to be moved from example to main src
rectAreaLights:{value:[],properties:{color:{},position:{},width:{},height:{}}},ltc_1:{value:null},ltc_2:{value:null}},points:{diffuse:{value:new Color(0xeeeeee)},opacity:{value:1.0},size:{value:1.0},scale:{value:1.0},map:{value:null},alphaMap:{value:null},uvTransform:{value:new Matrix3()}},sprite:{diffuse:{value:new Color(0xeeeeee)},opacity:{value:1.0},center:{value:new Vector2(0.5,0.5)},rotation:{value:0.0},map:{value:null},alphaMap:{value:null},uvTransform:{value:new Matrix3()}}};var ShaderLib={basic:{uniforms:mergeUniforms([UniformsLib.common,UniformsLib.specularmap,UniformsLib.envmap,UniformsLib.aomap,UniformsLib.lightmap,UniformsLib.fog]),vertexShader:ShaderChunk.meshbasic_vert,fragmentShader:ShaderChunk.meshbasic_frag},lambert:{uniforms:mergeUniforms([UniformsLib.common,UniformsLib.specularmap,UniformsLib.envmap,UniformsLib.aomap,UniformsLib.lightmap,UniformsLib.emissivemap,UniformsLib.fog,UniformsLib.lights,{emissive:{value:new Color(0x000000)}}]),vertexShader:ShaderChunk.meshlambert_vert,fragmentShader:ShaderChunk.meshlambert_frag},phong:{uniforms:mergeUniforms([UniformsLib.common,UniformsLib.specularmap,UniformsLib.envmap,UniformsLib.aomap,UniformsLib.lightmap,UniformsLib.emissivemap,UniformsLib.bumpmap,UniformsLib.normalmap,UniformsLib.displacementmap,UniformsLib.fog,UniformsLib.lights,{emissive:{value:new Color(0x000000)},specular:{value:new Color(0x111111)},shininess:{value:30}}]),vertexShader:ShaderChunk.meshphong_vert,fragmentShader:ShaderChunk.meshphong_frag},standard:{uniforms:mergeUniforms([UniformsLib.common,UniformsLib.envmap,UniformsLib.aomap,UniformsLib.lightmap,UniformsLib.emissivemap,UniformsLib.bumpmap,UniformsLib.normalmap,UniformsLib.displacementmap,UniformsLib.roughnessmap,UniformsLib.metalnessmap,UniformsLib.fog,UniformsLib.lights,{emissive:{value:new Color(0x000000)},roughness:{value:1.0},metalness:{value:0.0},envMapIntensity:{value:1}// temporary
}]),vertexShader:ShaderChunk.meshphysical_vert,fragmentShader:ShaderChunk.meshphysical_frag},toon:{uniforms:mergeUniforms([UniformsLib.common,UniformsLib.aomap,UniformsLib.lightmap,UniformsLib.emissivemap,UniformsLib.bumpmap,UniformsLib.normalmap,UniformsLib.displacementmap,UniformsLib.gradientmap,UniformsLib.fog,UniformsLib.lights,{emissive:{value:new Color(0x000000)}}]),vertexShader:ShaderChunk.meshtoon_vert,fragmentShader:ShaderChunk.meshtoon_frag},matcap:{uniforms:mergeUniforms([UniformsLib.common,UniformsLib.bumpmap,UniformsLib.normalmap,UniformsLib.displacementmap,UniformsLib.fog,{matcap:{value:null}}]),vertexShader:ShaderChunk.meshmatcap_vert,fragmentShader:ShaderChunk.meshmatcap_frag},points:{uniforms:mergeUniforms([UniformsLib.points,UniformsLib.fog]),vertexShader:ShaderChunk.points_vert,fragmentShader:ShaderChunk.points_frag},dashed:{uniforms:mergeUniforms([UniformsLib.common,UniformsLib.fog,{scale:{value:1},dashSize:{value:1},totalSize:{value:2}}]),vertexShader:ShaderChunk.linedashed_vert,fragmentShader:ShaderChunk.linedashed_frag},depth:{uniforms:mergeUniforms([UniformsLib.common,UniformsLib.displacementmap]),vertexShader:ShaderChunk.depth_vert,fragmentShader:ShaderChunk.depth_frag},normal:{uniforms:mergeUniforms([UniformsLib.common,UniformsLib.bumpmap,UniformsLib.normalmap,UniformsLib.displacementmap,{opacity:{value:1.0}}]),vertexShader:ShaderChunk.normal_vert,fragmentShader:ShaderChunk.normal_frag},sprite:{uniforms:mergeUniforms([UniformsLib.sprite,UniformsLib.fog]),vertexShader:ShaderChunk.sprite_vert,fragmentShader:ShaderChunk.sprite_frag},background:{uniforms:{uvTransform:{value:new Matrix3()},t2D:{value:null}},vertexShader:ShaderChunk.background_vert,fragmentShader:ShaderChunk.background_frag},/* -------------------------------------------------------------------------
	//	Cube map shader
	 ------------------------------------------------------------------------- */cube:{uniforms:mergeUniforms([UniformsLib.envmap,{opacity:{value:1.0}}]),vertexShader:ShaderChunk.cube_vert,fragmentShader:ShaderChunk.cube_frag},equirect:{uniforms:{tEquirect:{value:null}},vertexShader:ShaderChunk.equirect_vert,fragmentShader:ShaderChunk.equirect_frag},distanceRGBA:{uniforms:mergeUniforms([UniformsLib.common,UniformsLib.displacementmap,{referencePosition:{value:new Vector3()},nearDistance:{value:1},farDistance:{value:1000}}]),vertexShader:ShaderChunk.distanceRGBA_vert,fragmentShader:ShaderChunk.distanceRGBA_frag},shadow:{uniforms:mergeUniforms([UniformsLib.lights,UniformsLib.fog,{color:{value:new Color(0x00000)},opacity:{value:1.0}}]),vertexShader:ShaderChunk.shadow_vert,fragmentShader:ShaderChunk.shadow_frag}};ShaderLib.physical={uniforms:mergeUniforms([ShaderLib.standard.uniforms,{clearcoat:{value:0},clearcoatMap:{value:null},clearcoatRoughness:{value:0},clearcoatRoughnessMap:{value:null},clearcoatNormalScale:{value:new Vector2(1,1)},clearcoatNormalMap:{value:null},sheen:{value:new Color(0x000000)},transmission:{value:0},transmissionMap:{value:null}}]),vertexShader:ShaderChunk.meshphysical_vert,fragmentShader:ShaderChunk.meshphysical_frag};function WebGLBackground(renderer,cubemaps,state,objects,premultipliedAlpha){var clearColor=new Color(0x000000);var clearAlpha=0;var planeMesh;var boxMesh;var currentBackground=null;var currentBackgroundVersion=0;var currentTonemapping=null;function render(renderList,scene,camera,forceClear){var background=scene.isScene===true?scene.background:null;if(background&&background.isTexture){background=cubemaps.get(background);}// Ignore background in AR
// TODO: Reconsider this.
var xr=renderer.xr;var session=xr.getSession&&xr.getSession();if(session&&session.environmentBlendMode==='additive'){background=null;}if(background===null){setClear(clearColor,clearAlpha);}else if(background&&background.isColor){setClear(background,1);forceClear=true;}if(renderer.autoClear||forceClear){renderer.clear(renderer.autoClearColor,renderer.autoClearDepth,renderer.autoClearStencil);}if(background&&(background.isCubeTexture||background.isWebGLCubeRenderTarget||background.mapping===CubeUVReflectionMapping)){if(boxMesh===undefined){boxMesh=new Mesh(new BoxBufferGeometry(1,1,1),new ShaderMaterial({name:'BackgroundCubeMaterial',uniforms:cloneUniforms(ShaderLib.cube.uniforms),vertexShader:ShaderLib.cube.vertexShader,fragmentShader:ShaderLib.cube.fragmentShader,side:BackSide,depthTest:false,depthWrite:false,fog:false}));boxMesh.geometry.deleteAttribute('normal');boxMesh.geometry.deleteAttribute('uv');boxMesh.onBeforeRender=function(renderer,scene,camera){this.matrixWorld.copyPosition(camera.matrixWorld);};// enable code injection for non-built-in material
Object.defineProperty(boxMesh.material,'envMap',{get:function get(){return this.uniforms.envMap.value;}});objects.update(boxMesh);}if(background.isWebGLCubeRenderTarget){// TODO Deprecate
background=background.texture;}boxMesh.material.uniforms.envMap.value=background;boxMesh.material.uniforms.flipEnvMap.value=background.isCubeTexture&&background._needsFlipEnvMap?-1:1;if(currentBackground!==background||currentBackgroundVersion!==background.version||currentTonemapping!==renderer.toneMapping){boxMesh.material.needsUpdate=true;currentBackground=background;currentBackgroundVersion=background.version;currentTonemapping=renderer.toneMapping;}// push to the pre-sorted opaque render list
renderList.unshift(boxMesh,boxMesh.geometry,boxMesh.material,0,0,null);}else if(background&&background.isTexture){if(planeMesh===undefined){planeMesh=new Mesh(new PlaneBufferGeometry(2,2),new ShaderMaterial({name:'BackgroundMaterial',uniforms:cloneUniforms(ShaderLib.background.uniforms),vertexShader:ShaderLib.background.vertexShader,fragmentShader:ShaderLib.background.fragmentShader,side:FrontSide,depthTest:false,depthWrite:false,fog:false}));planeMesh.geometry.deleteAttribute('normal');// enable code injection for non-built-in material
Object.defineProperty(planeMesh.material,'map',{get:function get(){return this.uniforms.t2D.value;}});objects.update(planeMesh);}planeMesh.material.uniforms.t2D.value=background;if(background.matrixAutoUpdate===true){background.updateMatrix();}planeMesh.material.uniforms.uvTransform.value.copy(background.matrix);if(currentBackground!==background||currentBackgroundVersion!==background.version||currentTonemapping!==renderer.toneMapping){planeMesh.material.needsUpdate=true;currentBackground=background;currentBackgroundVersion=background.version;currentTonemapping=renderer.toneMapping;}// push to the pre-sorted opaque render list
renderList.unshift(planeMesh,planeMesh.geometry,planeMesh.material,0,0,null);}}function setClear(color,alpha){state.buffers.color.setClear(color.r,color.g,color.b,alpha,premultipliedAlpha);}return {getClearColor:function getClearColor(){return clearColor;},setClearColor:function setClearColor(color){var alpha=arguments.length>1&&arguments[1]!==undefined?arguments[1]:1;clearColor.set(color);clearAlpha=alpha;setClear(clearColor,clearAlpha);},getClearAlpha:function getClearAlpha(){return clearAlpha;},setClearAlpha:function setClearAlpha(alpha){clearAlpha=alpha;setClear(clearColor,clearAlpha);},render:render};}function WebGLBindingStates(gl,extensions,attributes,capabilities){var maxVertexAttributes=gl.getParameter(34921);var extension=capabilities.isWebGL2?null:extensions.get('OES_vertex_array_object');var vaoAvailable=capabilities.isWebGL2||extension!==null;var bindingStates={};var defaultState=createBindingState(null);var currentState=defaultState;function setup(object,material,program,geometry,index){var updateBuffers=false;if(vaoAvailable){var state=getBindingState(geometry,program,material);if(currentState!==state){currentState=state;bindVertexArrayObject(currentState.object);}updateBuffers=needsUpdate(geometry,index);if(updateBuffers)saveCache(geometry,index);}else {var wireframe=material.wireframe===true;if(currentState.geometry!==geometry.id||currentState.program!==program.id||currentState.wireframe!==wireframe){currentState.geometry=geometry.id;currentState.program=program.id;currentState.wireframe=wireframe;updateBuffers=true;}}if(object.isInstancedMesh===true){updateBuffers=true;}if(index!==null){attributes.update(index,34963);}if(updateBuffers){setupVertexAttributes(object,material,program,geometry);if(index!==null){gl.bindBuffer(34963,attributes.get(index).buffer);}}}function createVertexArrayObject(){if(capabilities.isWebGL2)return gl.createVertexArray();return extension.createVertexArrayOES();}function bindVertexArrayObject(vao){if(capabilities.isWebGL2)return gl.bindVertexArray(vao);return extension.bindVertexArrayOES(vao);}function deleteVertexArrayObject(vao){if(capabilities.isWebGL2)return gl.deleteVertexArray(vao);return extension.deleteVertexArrayOES(vao);}function getBindingState(geometry,program,material){var wireframe=material.wireframe===true;var programMap=bindingStates[geometry.id];if(programMap===undefined){programMap={};bindingStates[geometry.id]=programMap;}var stateMap=programMap[program.id];if(stateMap===undefined){stateMap={};programMap[program.id]=stateMap;}var state=stateMap[wireframe];if(state===undefined){state=createBindingState(createVertexArrayObject());stateMap[wireframe]=state;}return state;}function createBindingState(vao){var newAttributes=[];var enabledAttributes=[];var attributeDivisors=[];for(var _i69=0;_i69<maxVertexAttributes;_i69++){newAttributes[_i69]=0;enabledAttributes[_i69]=0;attributeDivisors[_i69]=0;}return {// for backward compatibility on non-VAO support browser
geometry:null,program:null,wireframe:false,newAttributes:newAttributes,enabledAttributes:enabledAttributes,attributeDivisors:attributeDivisors,object:vao,attributes:{},index:null};}function needsUpdate(geometry,index){var cachedAttributes=currentState.attributes;var geometryAttributes=geometry.attributes;var attributesNum=0;for(var key in geometryAttributes){var cachedAttribute=cachedAttributes[key];var geometryAttribute=geometryAttributes[key];if(cachedAttribute===undefined)return true;if(cachedAttribute.attribute!==geometryAttribute)return true;if(cachedAttribute.data!==geometryAttribute.data)return true;attributesNum++;}if(currentState.attributesNum!==attributesNum)return true;if(currentState.index!==index)return true;return false;}function saveCache(geometry,index){var cache={};var attributes=geometry.attributes;var attributesNum=0;for(var key in attributes){var attribute=attributes[key];var data={};data.attribute=attribute;if(attribute.data){data.data=attribute.data;}cache[key]=data;attributesNum++;}currentState.attributes=cache;currentState.attributesNum=attributesNum;currentState.index=index;}function initAttributes(){var newAttributes=currentState.newAttributes;for(var _i70=0,il=newAttributes.length;_i70<il;_i70++){newAttributes[_i70]=0;}}function enableAttribute(attribute){enableAttributeAndDivisor(attribute,0);}function enableAttributeAndDivisor(attribute,meshPerAttribute){var newAttributes=currentState.newAttributes;var enabledAttributes=currentState.enabledAttributes;var attributeDivisors=currentState.attributeDivisors;newAttributes[attribute]=1;if(enabledAttributes[attribute]===0){gl.enableVertexAttribArray(attribute);enabledAttributes[attribute]=1;}if(attributeDivisors[attribute]!==meshPerAttribute){var _extension=capabilities.isWebGL2?gl:extensions.get('ANGLE_instanced_arrays');_extension[capabilities.isWebGL2?'vertexAttribDivisor':'vertexAttribDivisorANGLE'](attribute,meshPerAttribute);attributeDivisors[attribute]=meshPerAttribute;}}function disableUnusedAttributes(){var newAttributes=currentState.newAttributes;var enabledAttributes=currentState.enabledAttributes;for(var _i71=0,il=enabledAttributes.length;_i71<il;_i71++){if(enabledAttributes[_i71]!==newAttributes[_i71]){gl.disableVertexAttribArray(_i71);enabledAttributes[_i71]=0;}}}function vertexAttribPointer(index,size,type,normalized,stride,offset){if(capabilities.isWebGL2===true&&(type===5124||type===5125)){gl.vertexAttribIPointer(index,size,type,stride,offset);}else {gl.vertexAttribPointer(index,size,type,normalized,stride,offset);}}function setupVertexAttributes(object,material,program,geometry){if(capabilities.isWebGL2===false&&(object.isInstancedMesh||geometry.isInstancedBufferGeometry)){if(extensions.get('ANGLE_instanced_arrays')===null)return;}initAttributes();var geometryAttributes=geometry.attributes;var programAttributes=program.getAttributes();var materialDefaultAttributeValues=material.defaultAttributeValues;for(var name in programAttributes){var programAttribute=programAttributes[name];if(programAttribute>=0){var geometryAttribute=geometryAttributes[name];if(geometryAttribute!==undefined){var normalized=geometryAttribute.normalized;var size=geometryAttribute.itemSize;var attribute=attributes.get(geometryAttribute);// TODO Attribute may not be available on context restore
if(attribute===undefined)continue;var buffer=attribute.buffer;var type=attribute.type;var bytesPerElement=attribute.bytesPerElement;if(geometryAttribute.isInterleavedBufferAttribute){var data=geometryAttribute.data;var stride=data.stride;var offset=geometryAttribute.offset;if(data&&data.isInstancedInterleavedBuffer){enableAttributeAndDivisor(programAttribute,data.meshPerAttribute);if(geometry._maxInstanceCount===undefined){geometry._maxInstanceCount=data.meshPerAttribute*data.count;}}else {enableAttribute(programAttribute);}gl.bindBuffer(34962,buffer);vertexAttribPointer(programAttribute,size,type,normalized,stride*bytesPerElement,offset*bytesPerElement);}else {if(geometryAttribute.isInstancedBufferAttribute){enableAttributeAndDivisor(programAttribute,geometryAttribute.meshPerAttribute);if(geometry._maxInstanceCount===undefined){geometry._maxInstanceCount=geometryAttribute.meshPerAttribute*geometryAttribute.count;}}else {enableAttribute(programAttribute);}gl.bindBuffer(34962,buffer);vertexAttribPointer(programAttribute,size,type,normalized,0,0);}}else if(name==='instanceMatrix'){var _attribute7=attributes.get(object.instanceMatrix);// TODO Attribute may not be available on context restore
if(_attribute7===undefined)continue;var _buffer=_attribute7.buffer;var _type=_attribute7.type;enableAttributeAndDivisor(programAttribute+0,1);enableAttributeAndDivisor(programAttribute+1,1);enableAttributeAndDivisor(programAttribute+2,1);enableAttributeAndDivisor(programAttribute+3,1);gl.bindBuffer(34962,_buffer);gl.vertexAttribPointer(programAttribute+0,4,_type,false,64,0);gl.vertexAttribPointer(programAttribute+1,4,_type,false,64,16);gl.vertexAttribPointer(programAttribute+2,4,_type,false,64,32);gl.vertexAttribPointer(programAttribute+3,4,_type,false,64,48);}else if(name==='instanceColor'){var _attribute8=attributes.get(object.instanceColor);// TODO Attribute may not be available on context restore
if(_attribute8===undefined)continue;var _buffer2=_attribute8.buffer;var _type2=_attribute8.type;enableAttributeAndDivisor(programAttribute,1);gl.bindBuffer(34962,_buffer2);gl.vertexAttribPointer(programAttribute,3,_type2,false,12,0);}else if(materialDefaultAttributeValues!==undefined){var value=materialDefaultAttributeValues[name];if(value!==undefined){switch(value.length){case 2:gl.vertexAttrib2fv(programAttribute,value);break;case 3:gl.vertexAttrib3fv(programAttribute,value);break;case 4:gl.vertexAttrib4fv(programAttribute,value);break;default:gl.vertexAttrib1fv(programAttribute,value);}}}}}disableUnusedAttributes();}function dispose(){reset();for(var geometryId in bindingStates){var programMap=bindingStates[geometryId];for(var programId in programMap){var stateMap=programMap[programId];for(var wireframe in stateMap){deleteVertexArrayObject(stateMap[wireframe].object);delete stateMap[wireframe];}delete programMap[programId];}delete bindingStates[geometryId];}}function releaseStatesOfGeometry(geometry){if(bindingStates[geometry.id]===undefined)return;var programMap=bindingStates[geometry.id];for(var programId in programMap){var stateMap=programMap[programId];for(var wireframe in stateMap){deleteVertexArrayObject(stateMap[wireframe].object);delete stateMap[wireframe];}delete programMap[programId];}delete bindingStates[geometry.id];}function releaseStatesOfProgram(program){for(var geometryId in bindingStates){var programMap=bindingStates[geometryId];if(programMap[program.id]===undefined)continue;var stateMap=programMap[program.id];for(var wireframe in stateMap){deleteVertexArrayObject(stateMap[wireframe].object);delete stateMap[wireframe];}delete programMap[program.id];}}function reset(){resetDefaultState();if(currentState===defaultState)return;currentState=defaultState;bindVertexArrayObject(currentState.object);}// for backward-compatilibity
function resetDefaultState(){defaultState.geometry=null;defaultState.program=null;defaultState.wireframe=false;}return {setup:setup,reset:reset,resetDefaultState:resetDefaultState,dispose:dispose,releaseStatesOfGeometry:releaseStatesOfGeometry,releaseStatesOfProgram:releaseStatesOfProgram,initAttributes:initAttributes,enableAttribute:enableAttribute,disableUnusedAttributes:disableUnusedAttributes};}function WebGLBufferRenderer(gl,extensions,info,capabilities){var isWebGL2=capabilities.isWebGL2;var mode;function setMode(value){mode=value;}function render(start,count){gl.drawArrays(mode,start,count);info.update(count,mode,1);}function renderInstances(start,count,primcount){if(primcount===0)return;var extension,methodName;if(isWebGL2){extension=gl;methodName='drawArraysInstanced';}else {extension=extensions.get('ANGLE_instanced_arrays');methodName='drawArraysInstancedANGLE';if(extension===null){console.error('THREE.WebGLBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.');return;}}extension[methodName](mode,start,count,primcount);info.update(count,mode,primcount);}//
this.setMode=setMode;this.render=render;this.renderInstances=renderInstances;}function WebGLCapabilities(gl,extensions,parameters){var maxAnisotropy;function getMaxAnisotropy(){if(maxAnisotropy!==undefined)return maxAnisotropy;var extension=extensions.get('EXT_texture_filter_anisotropic');if(extension!==null){maxAnisotropy=gl.getParameter(extension.MAX_TEXTURE_MAX_ANISOTROPY_EXT);}else {maxAnisotropy=0;}return maxAnisotropy;}function getMaxPrecision(precision){if(precision==='highp'){if(gl.getShaderPrecisionFormat(35633,36338).precision>0&&gl.getShaderPrecisionFormat(35632,36338).precision>0){return 'highp';}precision='mediump';}if(precision==='mediump'){if(gl.getShaderPrecisionFormat(35633,36337).precision>0&&gl.getShaderPrecisionFormat(35632,36337).precision>0){return 'mediump';}}return 'lowp';}/* eslint-disable no-undef */var isWebGL2=typeof WebGL2RenderingContext!=='undefined'&&gl instanceof WebGL2RenderingContext||typeof WebGL2ComputeRenderingContext!=='undefined'&&gl instanceof WebGL2ComputeRenderingContext;/* eslint-enable no-undef */var precision=parameters.precision!==undefined?parameters.precision:'highp';var maxPrecision=getMaxPrecision(precision);if(maxPrecision!==precision){console.warn('THREE.WebGLRenderer:',precision,'not supported, using',maxPrecision,'instead.');precision=maxPrecision;}var logarithmicDepthBuffer=parameters.logarithmicDepthBuffer===true;var maxTextures=gl.getParameter(34930);var maxVertexTextures=gl.getParameter(35660);var maxTextureSize=gl.getParameter(3379);var maxCubemapSize=gl.getParameter(34076);var maxAttributes=gl.getParameter(34921);var maxVertexUniforms=gl.getParameter(36347);var maxVaryings=gl.getParameter(36348);var maxFragmentUniforms=gl.getParameter(36349);var vertexTextures=maxVertexTextures>0;var floatFragmentTextures=isWebGL2||!!extensions.get('OES_texture_float');var floatVertexTextures=vertexTextures&&floatFragmentTextures;var maxSamples=isWebGL2?gl.getParameter(36183):0;return {isWebGL2:isWebGL2,getMaxAnisotropy:getMaxAnisotropy,getMaxPrecision:getMaxPrecision,precision:precision,logarithmicDepthBuffer:logarithmicDepthBuffer,maxTextures:maxTextures,maxVertexTextures:maxVertexTextures,maxTextureSize:maxTextureSize,maxCubemapSize:maxCubemapSize,maxAttributes:maxAttributes,maxVertexUniforms:maxVertexUniforms,maxVaryings:maxVaryings,maxFragmentUniforms:maxFragmentUniforms,vertexTextures:vertexTextures,floatFragmentTextures:floatFragmentTextures,floatVertexTextures:floatVertexTextures,maxSamples:maxSamples};}function WebGLClipping(properties){var scope=this;var globalState=null,numGlobalPlanes=0,localClippingEnabled=false,renderingShadows=false;var plane=new Plane(),viewNormalMatrix=new Matrix3(),uniform={value:null,needsUpdate:false};this.uniform=uniform;this.numPlanes=0;this.numIntersection=0;this.init=function(planes,enableLocalClipping,camera){var enabled=planes.length!==0||enableLocalClipping||// enable state of previous frame - the clipping code has to
// run another frame in order to reset the state:
numGlobalPlanes!==0||localClippingEnabled;localClippingEnabled=enableLocalClipping;globalState=projectPlanes(planes,camera,0);numGlobalPlanes=planes.length;return enabled;};this.beginShadows=function(){renderingShadows=true;projectPlanes(null);};this.endShadows=function(){renderingShadows=false;resetGlobalState();};this.setState=function(material,camera,useCache){var planes=material.clippingPlanes,clipIntersection=material.clipIntersection,clipShadows=material.clipShadows;var materialProperties=properties.get(material);if(!localClippingEnabled||planes===null||planes.length===0||renderingShadows&&!clipShadows){// there's no local clipping
if(renderingShadows){// there's no global clipping
projectPlanes(null);}else {resetGlobalState();}}else {var nGlobal=renderingShadows?0:numGlobalPlanes,lGlobal=nGlobal*4;var dstArray=materialProperties.clippingState||null;uniform.value=dstArray;// ensure unique state
dstArray=projectPlanes(planes,camera,lGlobal,useCache);for(var _i72=0;_i72!==lGlobal;++_i72){dstArray[_i72]=globalState[_i72];}materialProperties.clippingState=dstArray;this.numIntersection=clipIntersection?this.numPlanes:0;this.numPlanes+=nGlobal;}};function resetGlobalState(){if(uniform.value!==globalState){uniform.value=globalState;uniform.needsUpdate=numGlobalPlanes>0;}scope.numPlanes=numGlobalPlanes;scope.numIntersection=0;}function projectPlanes(planes,camera,dstOffset,skipTransform){var nPlanes=planes!==null?planes.length:0;var dstArray=null;if(nPlanes!==0){dstArray=uniform.value;if(skipTransform!==true||dstArray===null){var flatSize=dstOffset+nPlanes*4,viewMatrix=camera.matrixWorldInverse;viewNormalMatrix.getNormalMatrix(viewMatrix);if(dstArray===null||dstArray.length<flatSize){dstArray=new Float32Array(flatSize);}for(var _i73=0,i4=dstOffset;_i73!==nPlanes;++_i73,i4+=4){plane.copy(planes[_i73]).applyMatrix4(viewMatrix,viewNormalMatrix);plane.normal.toArray(dstArray,i4);dstArray[i4+3]=plane.constant;}}uniform.value=dstArray;uniform.needsUpdate=true;}scope.numPlanes=nPlanes;scope.numIntersection=0;return dstArray;}}function WebGLCubeMaps(renderer){var cubemaps=new WeakMap();function mapTextureMapping(texture,mapping){if(mapping===EquirectangularReflectionMapping){texture.mapping=CubeReflectionMapping;}else if(mapping===EquirectangularRefractionMapping){texture.mapping=CubeRefractionMapping;}return texture;}function get(texture){if(texture&&texture.isTexture){var mapping=texture.mapping;if(mapping===EquirectangularReflectionMapping||mapping===EquirectangularRefractionMapping){if(cubemaps.has(texture)){var cubemap=cubemaps.get(texture).texture;return mapTextureMapping(cubemap,texture.mapping);}else {var image=texture.image;if(image&&image.height>0){var currentRenderList=renderer.getRenderList();var currentRenderTarget=renderer.getRenderTarget();var renderTarget=new WebGLCubeRenderTarget(image.height/2);renderTarget.fromEquirectangularTexture(renderer,texture);cubemaps.set(texture,renderTarget);renderer.setRenderTarget(currentRenderTarget);renderer.setRenderList(currentRenderList);texture.addEventListener('dispose',onTextureDispose);return mapTextureMapping(renderTarget.texture,texture.mapping);}else {// image not yet ready. try the conversion next frame
return null;}}}}return texture;}function onTextureDispose(event){var texture=event.target;texture.removeEventListener('dispose',onTextureDispose);var cubemap=cubemaps.get(texture);if(cubemap!==undefined){cubemaps.delete(texture);cubemap.dispose();}}function dispose(){cubemaps=new WeakMap();}return {get:get,dispose:dispose};}function WebGLExtensions(gl){var extensions={};return {has:function has(name){if(extensions[name]!==undefined){return extensions[name]!==null;}var extension;switch(name){case'WEBGL_depth_texture':extension=gl.getExtension('WEBGL_depth_texture')||gl.getExtension('MOZ_WEBGL_depth_texture')||gl.getExtension('WEBKIT_WEBGL_depth_texture');break;case'EXT_texture_filter_anisotropic':extension=gl.getExtension('EXT_texture_filter_anisotropic')||gl.getExtension('MOZ_EXT_texture_filter_anisotropic')||gl.getExtension('WEBKIT_EXT_texture_filter_anisotropic');break;case'WEBGL_compressed_texture_s3tc':extension=gl.getExtension('WEBGL_compressed_texture_s3tc')||gl.getExtension('MOZ_WEBGL_compressed_texture_s3tc')||gl.getExtension('WEBKIT_WEBGL_compressed_texture_s3tc');break;case'WEBGL_compressed_texture_pvrtc':extension=gl.getExtension('WEBGL_compressed_texture_pvrtc')||gl.getExtension('WEBKIT_WEBGL_compressed_texture_pvrtc');break;default:extension=gl.getExtension(name);}extensions[name]=extension;return extension!==null;},get:function get(name){if(!this.has(name)){console.warn('THREE.WebGLRenderer: '+name+' extension not supported.');}return extensions[name];}};}function WebGLGeometries(gl,attributes,info,bindingStates){var geometries=new WeakMap();var wireframeAttributes=new WeakMap();function onGeometryDispose(event){var geometry=event.target;var buffergeometry=geometries.get(geometry);if(buffergeometry.index!==null){attributes.remove(buffergeometry.index);}for(var name in buffergeometry.attributes){attributes.remove(buffergeometry.attributes[name]);}geometry.removeEventListener('dispose',onGeometryDispose);geometries.delete(geometry);var attribute=wireframeAttributes.get(buffergeometry);if(attribute){attributes.remove(attribute);wireframeAttributes.delete(buffergeometry);}bindingStates.releaseStatesOfGeometry(buffergeometry);if(geometry.isInstancedBufferGeometry===true){delete geometry._maxInstanceCount;}//
info.memory.geometries--;}function get(object,geometry){var buffergeometry=geometries.get(geometry);if(buffergeometry)return buffergeometry;geometry.addEventListener('dispose',onGeometryDispose);if(geometry.isBufferGeometry){buffergeometry=geometry;}else if(geometry.isGeometry){if(geometry._bufferGeometry===undefined){geometry._bufferGeometry=new BufferGeometry().setFromObject(object);}buffergeometry=geometry._bufferGeometry;}geometries.set(geometry,buffergeometry);info.memory.geometries++;return buffergeometry;}function update(geometry){var geometryAttributes=geometry.attributes;// Updating index buffer in VAO now. See WebGLBindingStates.
for(var name in geometryAttributes){attributes.update(geometryAttributes[name],34962);}// morph targets
var morphAttributes=geometry.morphAttributes;for(var _name3 in morphAttributes){var array=morphAttributes[_name3];for(var _i74=0,l=array.length;_i74<l;_i74++){attributes.update(array[_i74],34962);}}}function updateWireframeAttribute(geometry){var indices=[];var geometryIndex=geometry.index;var geometryPosition=geometry.attributes.position;var version=0;if(geometryIndex!==null){var array=geometryIndex.array;version=geometryIndex.version;for(var _i75=0,l=array.length;_i75<l;_i75+=3){var a=array[_i75+0];var b=array[_i75+1];var c=array[_i75+2];indices.push(a,b,b,c,c,a);}}else {var _array=geometryPosition.array;version=geometryPosition.version;for(var _i76=0,_l4=_array.length/3-1;_i76<_l4;_i76+=3){var _a4=_i76+0;var _b4=_i76+1;var _c4=_i76+2;indices.push(_a4,_b4,_b4,_c4,_c4,_a4);}}var attribute=new(arrayMax(indices)>65535?Uint32BufferAttribute:Uint16BufferAttribute)(indices,1);attribute.version=version;// Updating index buffer in VAO now. See WebGLBindingStates
//
var previousAttribute=wireframeAttributes.get(geometry);if(previousAttribute)attributes.remove(previousAttribute);//
wireframeAttributes.set(geometry,attribute);}function getWireframeAttribute(geometry){var currentAttribute=wireframeAttributes.get(geometry);if(currentAttribute){var geometryIndex=geometry.index;if(geometryIndex!==null){// if the attribute is obsolete, create a new one
if(currentAttribute.version<geometryIndex.version){updateWireframeAttribute(geometry);}}}else {updateWireframeAttribute(geometry);}return wireframeAttributes.get(geometry);}return {get:get,update:update,getWireframeAttribute:getWireframeAttribute};}function WebGLIndexedBufferRenderer(gl,extensions,info,capabilities){var isWebGL2=capabilities.isWebGL2;var mode;function setMode(value){mode=value;}var type,bytesPerElement;function setIndex(value){type=value.type;bytesPerElement=value.bytesPerElement;}function render(start,count){gl.drawElements(mode,count,type,start*bytesPerElement);info.update(count,mode,1);}function renderInstances(start,count,primcount){if(primcount===0)return;var extension,methodName;if(isWebGL2){extension=gl;methodName='drawElementsInstanced';}else {extension=extensions.get('ANGLE_instanced_arrays');methodName='drawElementsInstancedANGLE';if(extension===null){console.error('THREE.WebGLIndexedBufferRenderer: using THREE.InstancedBufferGeometry but hardware does not support extension ANGLE_instanced_arrays.');return;}}extension[methodName](mode,count,type,start*bytesPerElement,primcount);info.update(count,mode,primcount);}//
this.setMode=setMode;this.setIndex=setIndex;this.render=render;this.renderInstances=renderInstances;}function WebGLInfo(gl){var memory={geometries:0,textures:0};var render={frame:0,calls:0,triangles:0,points:0,lines:0};function update(count,mode,instanceCount){render.calls++;switch(mode){case 4:render.triangles+=instanceCount*(count/3);break;case 1:render.lines+=instanceCount*(count/2);break;case 3:render.lines+=instanceCount*(count-1);break;case 2:render.lines+=instanceCount*count;break;case 0:render.points+=instanceCount*count;break;default:console.error('THREE.WebGLInfo: Unknown draw mode:',mode);break;}}function reset(){render.frame++;render.calls=0;render.triangles=0;render.points=0;render.lines=0;}return {memory:memory,render:render,programs:null,autoReset:true,reset:reset,update:update};}function numericalSort(a,b){return a[0]-b[0];}function absNumericalSort(a,b){return Math.abs(b[1])-Math.abs(a[1]);}function WebGLMorphtargets(gl){var influencesList={};var morphInfluences=new Float32Array(8);var workInfluences=[];for(var _i77=0;_i77<8;_i77++){workInfluences[_i77]=[_i77,0];}function update(object,geometry,material,program){var objectInfluences=object.morphTargetInfluences;// When object doesn't have morph target influences defined, we treat it as a 0-length array
// This is important to make sure we set up morphTargetBaseInfluence / morphTargetInfluences
var length=objectInfluences===undefined?0:objectInfluences.length;var influences=influencesList[geometry.id];if(influences===undefined){// initialise list
influences=[];for(var _i78=0;_i78<length;_i78++){influences[_i78]=[_i78,0];}influencesList[geometry.id]=influences;}// Collect influences
for(var _i79=0;_i79<length;_i79++){var influence=influences[_i79];influence[0]=_i79;influence[1]=objectInfluences[_i79];}influences.sort(absNumericalSort);for(var _i80=0;_i80<8;_i80++){if(_i80<length&&influences[_i80][1]){workInfluences[_i80][0]=influences[_i80][0];workInfluences[_i80][1]=influences[_i80][1];}else {workInfluences[_i80][0]=Number.MAX_SAFE_INTEGER;workInfluences[_i80][1]=0;}}workInfluences.sort(numericalSort);var morphTargets=material.morphTargets&&geometry.morphAttributes.position;var morphNormals=material.morphNormals&&geometry.morphAttributes.normal;var morphInfluencesSum=0;for(var _i81=0;_i81<8;_i81++){var _influence=workInfluences[_i81];var index=_influence[0];var value=_influence[1];if(index!==Number.MAX_SAFE_INTEGER&&value){if(morphTargets&&geometry.getAttribute('morphTarget'+_i81)!==morphTargets[index]){geometry.setAttribute('morphTarget'+_i81,morphTargets[index]);}if(morphNormals&&geometry.getAttribute('morphNormal'+_i81)!==morphNormals[index]){geometry.setAttribute('morphNormal'+_i81,morphNormals[index]);}morphInfluences[_i81]=value;morphInfluencesSum+=value;}else {if(morphTargets&&geometry.hasAttribute('morphTarget'+_i81)===true){geometry.deleteAttribute('morphTarget'+_i81);}if(morphNormals&&geometry.hasAttribute('morphNormal'+_i81)===true){geometry.deleteAttribute('morphNormal'+_i81);}morphInfluences[_i81]=0;}}// GLSL shader uses formula baseinfluence * base + sum(target * influence)
// This allows us to switch between absolute morphs and relative morphs without changing shader code
// When baseinfluence = 1 - sum(influence), the above is equivalent to sum((target - base) * influence)
var morphBaseInfluence=geometry.morphTargetsRelative?1:1-morphInfluencesSum;program.getUniforms().setValue(gl,'morphTargetBaseInfluence',morphBaseInfluence);program.getUniforms().setValue(gl,'morphTargetInfluences',morphInfluences);}return {update:update};}function WebGLObjects(gl,geometries,attributes,info){var updateMap=new WeakMap();function update(object){var frame=info.render.frame;var geometry=object.geometry;var buffergeometry=geometries.get(object,geometry);// Update once per frame
if(updateMap.get(buffergeometry)!==frame){if(geometry.isGeometry){buffergeometry.updateFromObject(object);}geometries.update(buffergeometry);updateMap.set(buffergeometry,frame);}if(object.isInstancedMesh){if(object.hasEventListener('dispose',onInstancedMeshDispose)===false){object.addEventListener('dispose',onInstancedMeshDispose);}attributes.update(object.instanceMatrix,34962);if(object.instanceColor!==null){attributes.update(object.instanceColor,34962);}}return buffergeometry;}function dispose(){updateMap=new WeakMap();}function onInstancedMeshDispose(event){var instancedMesh=event.target;instancedMesh.removeEventListener('dispose',onInstancedMeshDispose);attributes.remove(instancedMesh.instanceMatrix);if(instancedMesh.instanceColor!==null)attributes.remove(instancedMesh.instanceColor);}return {update:update,dispose:dispose};}function DataTexture2DArray(){var data=arguments.length>0&&arguments[0]!==undefined?arguments[0]:null;var width=arguments.length>1&&arguments[1]!==undefined?arguments[1]:1;var height=arguments.length>2&&arguments[2]!==undefined?arguments[2]:1;var depth=arguments.length>3&&arguments[3]!==undefined?arguments[3]:1;Texture.call(this,null);this.image={data,width,height,depth};this.magFilter=NearestFilter;this.minFilter=NearestFilter;this.wrapR=ClampToEdgeWrapping;this.generateMipmaps=false;this.flipY=false;this.needsUpdate=true;}DataTexture2DArray.prototype=Object.create(Texture.prototype);DataTexture2DArray.prototype.constructor=DataTexture2DArray;DataTexture2DArray.prototype.isDataTexture2DArray=true;function DataTexture3D(){var data=arguments.length>0&&arguments[0]!==undefined?arguments[0]:null;var width=arguments.length>1&&arguments[1]!==undefined?arguments[1]:1;var height=arguments.length>2&&arguments[2]!==undefined?arguments[2]:1;var depth=arguments.length>3&&arguments[3]!==undefined?arguments[3]:1;// We're going to add .setXXX() methods for setting properties later.
// Users can still set in DataTexture3D directly.
//
//	const texture = new THREE.DataTexture3D( data, width, height, depth );
// 	texture.anisotropy = 16;
//
// See #14839
Texture.call(this,null);this.image={data,width,height,depth};this.magFilter=NearestFilter;this.minFilter=NearestFilter;this.wrapR=ClampToEdgeWrapping;this.generateMipmaps=false;this.flipY=false;this.needsUpdate=true;}DataTexture3D.prototype=Object.create(Texture.prototype);DataTexture3D.prototype.constructor=DataTexture3D;DataTexture3D.prototype.isDataTexture3D=true;/**
 * Uniforms of a program.
 * Those form a tree structure with a special top-level container for the root,
 * which you get by calling 'new WebGLUniforms( gl, program )'.
 *
 *
 * Properties of inner nodes including the top-level container:
 *
 * .seq - array of nested uniforms
 * .map - nested uniforms by name
 *
 *
 * Methods of all nodes except the top-level container:
 *
 * .setValue( gl, value, [textures] )
 *
 * 		uploads a uniform value(s)
 *  	the 'textures' parameter is needed for sampler uniforms
 *
 *
 * Static methods of the top-level container (textures factorizations):
 *
 * .upload( gl, seq, values, textures )
 *
 * 		sets uniforms in 'seq' to 'values[id].value'
 *
 * .seqWithValue( seq, values ) : filteredSeq
 *
 * 		filters 'seq' entries with corresponding entry in values
 *
 *
 * Methods of the top-level container (textures factorizations):
 *
 * .setValue( gl, name, value, textures )
 *
 * 		sets uniform with  name 'name' to 'value'
 *
 * .setOptional( gl, obj, prop )
 *
 * 		like .set for an optional property of the object
 *
 */var emptyTexture=new Texture();var emptyTexture2dArray=new DataTexture2DArray();var emptyTexture3d=new DataTexture3D();var emptyCubeTexture=new CubeTexture();// --- Utilities ---
// Array Caches (provide typed arrays for temporary by size)
var arrayCacheF32=[];var arrayCacheI32=[];// Float32Array caches used for uploading Matrix uniforms
var mat4array=new Float32Array(16);var mat3array=new Float32Array(9);var mat2array=new Float32Array(4);// Flattening for arrays of vectors and matrices
function flatten(array,nBlocks,blockSize){var firstElem=array[0];if(firstElem<=0||firstElem>0)return array;// unoptimized: ! isNaN( firstElem )
// see http://jacksondunstan.com/articles/983
var n=nBlocks*blockSize;var r=arrayCacheF32[n];if(r===undefined){r=new Float32Array(n);arrayCacheF32[n]=r;}if(nBlocks!==0){firstElem.toArray(r,0);for(var _i82=1,offset=0;_i82!==nBlocks;++_i82){offset+=blockSize;array[_i82].toArray(r,offset);}}return r;}function arraysEqual(a,b){if(a.length!==b.length)return false;for(var _i83=0,l=a.length;_i83<l;_i83++){if(a[_i83]!==b[_i83])return false;}return true;}function copyArray(a,b){for(var _i84=0,l=b.length;_i84<l;_i84++){a[_i84]=b[_i84];}}// Texture unit allocation
function allocTexUnits(textures,n){var r=arrayCacheI32[n];if(r===undefined){r=new Int32Array(n);arrayCacheI32[n]=r;}for(var _i85=0;_i85!==n;++_i85){r[_i85]=textures.allocateTextureUnit();}return r;}// --- Setters ---
// Note: Defining these methods externally, because they come in a bunch
// and this way their names minify.
// Single scalar
function setValueV1f(gl,v){var cache=this.cache;if(cache[0]===v)return;gl.uniform1f(this.addr,v);cache[0]=v;}// Single float vector (from flat array or THREE.VectorN)
function setValueV2f(gl,v){var cache=this.cache;if(v.x!==undefined){if(cache[0]!==v.x||cache[1]!==v.y){gl.uniform2f(this.addr,v.x,v.y);cache[0]=v.x;cache[1]=v.y;}}else {if(arraysEqual(cache,v))return;gl.uniform2fv(this.addr,v);copyArray(cache,v);}}function setValueV3f(gl,v){var cache=this.cache;if(v.x!==undefined){if(cache[0]!==v.x||cache[1]!==v.y||cache[2]!==v.z){gl.uniform3f(this.addr,v.x,v.y,v.z);cache[0]=v.x;cache[1]=v.y;cache[2]=v.z;}}else if(v.r!==undefined){if(cache[0]!==v.r||cache[1]!==v.g||cache[2]!==v.b){gl.uniform3f(this.addr,v.r,v.g,v.b);cache[0]=v.r;cache[1]=v.g;cache[2]=v.b;}}else {if(arraysEqual(cache,v))return;gl.uniform3fv(this.addr,v);copyArray(cache,v);}}function setValueV4f(gl,v){var cache=this.cache;if(v.x!==undefined){if(cache[0]!==v.x||cache[1]!==v.y||cache[2]!==v.z||cache[3]!==v.w){gl.uniform4f(this.addr,v.x,v.y,v.z,v.w);cache[0]=v.x;cache[1]=v.y;cache[2]=v.z;cache[3]=v.w;}}else {if(arraysEqual(cache,v))return;gl.uniform4fv(this.addr,v);copyArray(cache,v);}}// Single matrix (from flat array or MatrixN)
function setValueM2(gl,v){var cache=this.cache;var elements=v.elements;if(elements===undefined){if(arraysEqual(cache,v))return;gl.uniformMatrix2fv(this.addr,false,v);copyArray(cache,v);}else {if(arraysEqual(cache,elements))return;mat2array.set(elements);gl.uniformMatrix2fv(this.addr,false,mat2array);copyArray(cache,elements);}}function setValueM3(gl,v){var cache=this.cache;var elements=v.elements;if(elements===undefined){if(arraysEqual(cache,v))return;gl.uniformMatrix3fv(this.addr,false,v);copyArray(cache,v);}else {if(arraysEqual(cache,elements))return;mat3array.set(elements);gl.uniformMatrix3fv(this.addr,false,mat3array);copyArray(cache,elements);}}function setValueM4(gl,v){var cache=this.cache;var elements=v.elements;if(elements===undefined){if(arraysEqual(cache,v))return;gl.uniformMatrix4fv(this.addr,false,v);copyArray(cache,v);}else {if(arraysEqual(cache,elements))return;mat4array.set(elements);gl.uniformMatrix4fv(this.addr,false,mat4array);copyArray(cache,elements);}}// Single texture (2D / Cube)
function setValueT1(gl,v,textures){var cache=this.cache;var unit=textures.allocateTextureUnit();if(cache[0]!==unit){gl.uniform1i(this.addr,unit);cache[0]=unit;}textures.safeSetTexture2D(v||emptyTexture,unit);}function setValueT2DArray1(gl,v,textures){var cache=this.cache;var unit=textures.allocateTextureUnit();if(cache[0]!==unit){gl.uniform1i(this.addr,unit);cache[0]=unit;}textures.setTexture2DArray(v||emptyTexture2dArray,unit);}function setValueT3D1(gl,v,textures){var cache=this.cache;var unit=textures.allocateTextureUnit();if(cache[0]!==unit){gl.uniform1i(this.addr,unit);cache[0]=unit;}textures.setTexture3D(v||emptyTexture3d,unit);}function setValueT6(gl,v,textures){var cache=this.cache;var unit=textures.allocateTextureUnit();if(cache[0]!==unit){gl.uniform1i(this.addr,unit);cache[0]=unit;}textures.safeSetTextureCube(v||emptyCubeTexture,unit);}// Integer / Boolean vectors or arrays thereof (always flat arrays)
function setValueV1i(gl,v){var cache=this.cache;if(cache[0]===v)return;gl.uniform1i(this.addr,v);cache[0]=v;}function setValueV2i(gl,v){var cache=this.cache;if(arraysEqual(cache,v))return;gl.uniform2iv(this.addr,v);copyArray(cache,v);}function setValueV3i(gl,v){var cache=this.cache;if(arraysEqual(cache,v))return;gl.uniform3iv(this.addr,v);copyArray(cache,v);}function setValueV4i(gl,v){var cache=this.cache;if(arraysEqual(cache,v))return;gl.uniform4iv(this.addr,v);copyArray(cache,v);}// uint
function setValueV1ui(gl,v){var cache=this.cache;if(cache[0]===v)return;gl.uniform1ui(this.addr,v);cache[0]=v;}// Helper to pick the right setter for the singular case
function getSingularSetter(type){switch(type){case 0x1406:return setValueV1f;// FLOAT
case 0x8b50:return setValueV2f;// _VEC2
case 0x8b51:return setValueV3f;// _VEC3
case 0x8b52:return setValueV4f;// _VEC4
case 0x8b5a:return setValueM2;// _MAT2
case 0x8b5b:return setValueM3;// _MAT3
case 0x8b5c:return setValueM4;// _MAT4
case 0x1404:case 0x8b56:return setValueV1i;// INT, BOOL
case 0x8b53:case 0x8b57:return setValueV2i;// _VEC2
case 0x8b54:case 0x8b58:return setValueV3i;// _VEC3
case 0x8b55:case 0x8b59:return setValueV4i;// _VEC4
case 0x1405:return setValueV1ui;// UINT
case 0x8b5e:// SAMPLER_2D
case 0x8d66:// SAMPLER_EXTERNAL_OES
case 0x8dca:// INT_SAMPLER_2D
case 0x8dd2:// UNSIGNED_INT_SAMPLER_2D
case 0x8b62:// SAMPLER_2D_SHADOW
return setValueT1;case 0x8b5f:// SAMPLER_3D
case 0x8dcb:// INT_SAMPLER_3D
case 0x8dd3:// UNSIGNED_INT_SAMPLER_3D
return setValueT3D1;case 0x8b60:// SAMPLER_CUBE
case 0x8dcc:// INT_SAMPLER_CUBE
case 0x8dd4:// UNSIGNED_INT_SAMPLER_CUBE
case 0x8dc5:// SAMPLER_CUBE_SHADOW
return setValueT6;case 0x8dc1:// SAMPLER_2D_ARRAY
case 0x8dcf:// INT_SAMPLER_2D_ARRAY
case 0x8dd7:// UNSIGNED_INT_SAMPLER_2D_ARRAY
case 0x8dc4:// SAMPLER_2D_ARRAY_SHADOW
return setValueT2DArray1;}}// Array of scalars
function setValueV1fArray(gl,v){gl.uniform1fv(this.addr,v);}// Integer / Boolean vectors or arrays thereof (always flat arrays)
function setValueV1iArray(gl,v){gl.uniform1iv(this.addr,v);}function setValueV2iArray(gl,v){gl.uniform2iv(this.addr,v);}function setValueV3iArray(gl,v){gl.uniform3iv(this.addr,v);}function setValueV4iArray(gl,v){gl.uniform4iv(this.addr,v);}// Array of vectors (flat or from THREE classes)
function setValueV2fArray(gl,v){var data=flatten(v,this.size,2);gl.uniform2fv(this.addr,data);}function setValueV3fArray(gl,v){var data=flatten(v,this.size,3);gl.uniform3fv(this.addr,data);}function setValueV4fArray(gl,v){var data=flatten(v,this.size,4);gl.uniform4fv(this.addr,data);}// Array of matrices (flat or from THREE clases)
function setValueM2Array(gl,v){var data=flatten(v,this.size,4);gl.uniformMatrix2fv(this.addr,false,data);}function setValueM3Array(gl,v){var data=flatten(v,this.size,9);gl.uniformMatrix3fv(this.addr,false,data);}function setValueM4Array(gl,v){var data=flatten(v,this.size,16);gl.uniformMatrix4fv(this.addr,false,data);}// Array of textures (2D / Cube)
function setValueT1Array(gl,v,textures){var n=v.length;var units=allocTexUnits(textures,n);gl.uniform1iv(this.addr,units);for(var _i86=0;_i86!==n;++_i86){textures.safeSetTexture2D(v[_i86]||emptyTexture,units[_i86]);}}function setValueT6Array(gl,v,textures){var n=v.length;var units=allocTexUnits(textures,n);gl.uniform1iv(this.addr,units);for(var _i87=0;_i87!==n;++_i87){textures.safeSetTextureCube(v[_i87]||emptyCubeTexture,units[_i87]);}}// Helper to pick the right setter for a pure (bottom-level) array
function getPureArraySetter(type){switch(type){case 0x1406:return setValueV1fArray;// FLOAT
case 0x8b50:return setValueV2fArray;// _VEC2
case 0x8b51:return setValueV3fArray;// _VEC3
case 0x8b52:return setValueV4fArray;// _VEC4
case 0x8b5a:return setValueM2Array;// _MAT2
case 0x8b5b:return setValueM3Array;// _MAT3
case 0x8b5c:return setValueM4Array;// _MAT4
case 0x1404:case 0x8b56:return setValueV1iArray;// INT, BOOL
case 0x8b53:case 0x8b57:return setValueV2iArray;// _VEC2
case 0x8b54:case 0x8b58:return setValueV3iArray;// _VEC3
case 0x8b55:case 0x8b59:return setValueV4iArray;// _VEC4
case 0x8b5e:// SAMPLER_2D
case 0x8d66:// SAMPLER_EXTERNAL_OES
case 0x8dca:// INT_SAMPLER_2D
case 0x8dd2:// UNSIGNED_INT_SAMPLER_2D
case 0x8b62:// SAMPLER_2D_SHADOW
return setValueT1Array;case 0x8b60:// SAMPLER_CUBE
case 0x8dcc:// INT_SAMPLER_CUBE
case 0x8dd4:// UNSIGNED_INT_SAMPLER_CUBE
case 0x8dc5:// SAMPLER_CUBE_SHADOW
return setValueT6Array;}}// --- Uniform Classes ---
function SingleUniform(id,activeInfo,addr){this.id=id;this.addr=addr;this.cache=[];this.setValue=getSingularSetter(activeInfo.type);// this.path = activeInfo.name; // DEBUG
}function PureArrayUniform(id,activeInfo,addr){this.id=id;this.addr=addr;this.cache=[];this.size=activeInfo.size;this.setValue=getPureArraySetter(activeInfo.type);// this.path = activeInfo.name; // DEBUG
}PureArrayUniform.prototype.updateCache=function(data){var cache=this.cache;if(data instanceof Float32Array&&cache.length!==data.length){this.cache=new Float32Array(data.length);}copyArray(cache,data);};function StructuredUniform(id){this.id=id;this.seq=[];this.map={};}StructuredUniform.prototype.setValue=function(gl,value,textures){var seq=this.seq;for(var _i88=0,n=seq.length;_i88!==n;++_i88){var u=seq[_i88];u.setValue(gl,value[u.id],textures);}};// --- Top-level ---
// Parser - builds up the property tree from the path strings
var RePathPart=/(\w+)(\])?(\[|\.)?/g;// extracts
// 	- the identifier (member name or array index)
//  - followed by an optional right bracket (found when array index)
//  - followed by an optional left bracket or dot (type of subscript)
//
// Note: These portions can be read in a non-overlapping fashion and
// allow straightforward parsing of the hierarchy that WebGL encodes
// in the uniform names.
function addUniform(container,uniformObject){container.seq.push(uniformObject);container.map[uniformObject.id]=uniformObject;}function parseUniform(activeInfo,addr,container){var path=activeInfo.name,pathLength=path.length;// reset RegExp object, because of the early exit of a previous run
RePathPart.lastIndex=0;while(true){var match=RePathPart.exec(path),matchEnd=RePathPart.lastIndex;var id=match[1];var idIsIndex=match[2]===']',subscript=match[3];if(idIsIndex)id=id|0;// convert to integer
if(subscript===undefined||subscript==='['&&matchEnd+2===pathLength){// bare name or "pure" bottom-level array "[0]" suffix
addUniform(container,subscript===undefined?new SingleUniform(id,activeInfo,addr):new PureArrayUniform(id,activeInfo,addr));break;}else {// step into inner node / create it in case it doesn't exist
var map=container.map;var next=map[id];if(next===undefined){next=new StructuredUniform(id);addUniform(container,next);}container=next;}}}// Root Container
function WebGLUniforms(gl,program){this.seq=[];this.map={};var n=gl.getProgramParameter(program,35718);for(var _i89=0;_i89<n;++_i89){var info=gl.getActiveUniform(program,_i89),addr=gl.getUniformLocation(program,info.name);parseUniform(info,addr,this);}}WebGLUniforms.prototype.setValue=function(gl,name,value,textures){var u=this.map[name];if(u!==undefined)u.setValue(gl,value,textures);};WebGLUniforms.prototype.setOptional=function(gl,object,name){var v=object[name];if(v!==undefined)this.setValue(gl,name,v);};// Static interface
WebGLUniforms.upload=function(gl,seq,values,textures){for(var _i90=0,n=seq.length;_i90!==n;++_i90){var u=seq[_i90],v=values[u.id];if(v.needsUpdate!==false){// note: always updating when .needsUpdate is undefined
u.setValue(gl,v.value,textures);}}};WebGLUniforms.seqWithValue=function(seq,values){var r=[];for(var _i91=0,n=seq.length;_i91!==n;++_i91){var u=seq[_i91];if(u.id in values)r.push(u);}return r;};function WebGLShader(gl,type,string){var shader=gl.createShader(type);gl.shaderSource(shader,string);gl.compileShader(shader);return shader;}var programIdCount=0;function addLineNumbers(string){var lines=string.split('\n');for(var _i92=0;_i92<lines.length;_i92++){lines[_i92]=_i92+1+': '+lines[_i92];}return lines.join('\n');}function getEncodingComponents(encoding){switch(encoding){case LinearEncoding:return ['Linear','( value )'];case sRGBEncoding:return ['sRGB','( value )'];case RGBEEncoding:return ['RGBE','( value )'];case RGBM7Encoding:return ['RGBM','( value, 7.0 )'];case RGBM16Encoding:return ['RGBM','( value, 16.0 )'];case RGBDEncoding:return ['RGBD','( value, 256.0 )'];case GammaEncoding:return ['Gamma','( value, float( GAMMA_FACTOR ) )'];case LogLuvEncoding:return ['LogLuv','( value )'];default:console.warn('THREE.WebGLProgram: Unsupported encoding:',encoding);return ['Linear','( value )'];}}function getShaderErrors(gl,shader,type){var status=gl.getShaderParameter(shader,35713);var log=gl.getShaderInfoLog(shader).trim();if(status&&log==='')return '';// --enable-privileged-webgl-extension
// console.log( '**' + type + '**', gl.getExtension( 'WEBGL_debug_shaders' ).getTranslatedShaderSource( shader ) );
var source=gl.getShaderSource(shader);return 'THREE.WebGLShader: gl.getShaderInfoLog() '+type+'\n'+log+addLineNumbers(source);}function getTexelDecodingFunction(functionName,encoding){var components=getEncodingComponents(encoding);return 'vec4 '+functionName+'( vec4 value ) { return '+components[0]+'ToLinear'+components[1]+'; }';}function getTexelEncodingFunction(functionName,encoding){var components=getEncodingComponents(encoding);return 'vec4 '+functionName+'( vec4 value ) { return LinearTo'+components[0]+components[1]+'; }';}function getToneMappingFunction(functionName,toneMapping){var toneMappingName;switch(toneMapping){case LinearToneMapping:toneMappingName='Linear';break;case ReinhardToneMapping:toneMappingName='Reinhard';break;case CineonToneMapping:toneMappingName='OptimizedCineon';break;case ACESFilmicToneMapping:toneMappingName='ACESFilmic';break;case CustomToneMapping:toneMappingName='Custom';break;default:console.warn('THREE.WebGLProgram: Unsupported toneMapping:',toneMapping);toneMappingName='Linear';}return 'vec3 '+functionName+'( vec3 color ) { return '+toneMappingName+'ToneMapping( color ); }';}function generateExtensions(parameters){var chunks=[parameters.extensionDerivatives||parameters.envMapCubeUV||parameters.bumpMap||parameters.tangentSpaceNormalMap||parameters.clearcoatNormalMap||parameters.flatShading||parameters.shaderID==='physical'?'#extension GL_OES_standard_derivatives : enable':'',(parameters.extensionFragDepth||parameters.logarithmicDepthBuffer)&&parameters.rendererExtensionFragDepth?'#extension GL_EXT_frag_depth : enable':'',parameters.extensionDrawBuffers&&parameters.rendererExtensionDrawBuffers?'#extension GL_EXT_draw_buffers : require':'',(parameters.extensionShaderTextureLOD||parameters.envMap)&&parameters.rendererExtensionShaderTextureLod?'#extension GL_EXT_shader_texture_lod : enable':''];return chunks.filter(filterEmptyLine).join('\n');}function generateDefines(defines){var chunks=[];for(var name in defines){var value=defines[name];if(value===false)continue;chunks.push('#define '+name+' '+value);}return chunks.join('\n');}function fetchAttributeLocations(gl,program){var attributes={};var n=gl.getProgramParameter(program,35721);for(var _i93=0;_i93<n;_i93++){var info=gl.getActiveAttrib(program,_i93);var name=info.name;// console.log( 'THREE.WebGLProgram: ACTIVE VERTEX ATTRIBUTE:', name, i );
attributes[name]=gl.getAttribLocation(program,name);}return attributes;}function filterEmptyLine(string){return string!=='';}function replaceLightNums(string,parameters){return string.replace(/NUM_DIR_LIGHTS/g,parameters.numDirLights).replace(/NUM_SPOT_LIGHTS/g,parameters.numSpotLights).replace(/NUM_RECT_AREA_LIGHTS/g,parameters.numRectAreaLights).replace(/NUM_POINT_LIGHTS/g,parameters.numPointLights).replace(/NUM_HEMI_LIGHTS/g,parameters.numHemiLights).replace(/NUM_DIR_LIGHT_SHADOWS/g,parameters.numDirLightShadows).replace(/NUM_SPOT_LIGHT_SHADOWS/g,parameters.numSpotLightShadows).replace(/NUM_POINT_LIGHT_SHADOWS/g,parameters.numPointLightShadows);}function replaceClippingPlaneNums(string,parameters){return string.replace(/NUM_CLIPPING_PLANES/g,parameters.numClippingPlanes).replace(/UNION_CLIPPING_PLANES/g,parameters.numClippingPlanes-parameters.numClipIntersection);}// Resolve Includes
var includePattern=/^[ \t]*#include +<([\w\d./]+)>/gm;function resolveIncludes(string){return string.replace(includePattern,includeReplacer);}function includeReplacer(match,include){var string=ShaderChunk[include];if(string===undefined){throw new Error('Can not resolve #include <'+include+'>');}return resolveIncludes(string);}// Unroll Loops
var deprecatedUnrollLoopPattern=/#pragma unroll_loop[\s]+?for \( int i \= (\d+)\; i < (\d+)\; i \+\+ \) \{([\s\S]+?)(?=\})\}/g;var unrollLoopPattern=/#pragma unroll_loop_start\s+for\s*\(\s*int\s+i\s*=\s*(\d+)\s*;\s*i\s*<\s*(\d+)\s*;\s*i\s*\+\+\s*\)\s*{([\s\S]+?)}\s+#pragma unroll_loop_end/g;function unrollLoops(string){return string.replace(unrollLoopPattern,loopReplacer).replace(deprecatedUnrollLoopPattern,deprecatedLoopReplacer);}function deprecatedLoopReplacer(match,start,end,snippet){console.warn('WebGLProgram: #pragma unroll_loop shader syntax is deprecated. Please use #pragma unroll_loop_start syntax instead.');return loopReplacer(match,start,end,snippet);}function loopReplacer(match,start,end,snippet){var string='';for(var _i94=parseInt(start);_i94<parseInt(end);_i94++){string+=snippet.replace(/\[\s*i\s*\]/g,'[ '+_i94+' ]').replace(/UNROLLED_LOOP_INDEX/g,_i94);}return string;}//
function generatePrecision(parameters){var precisionstring='precision '+parameters.precision+' float;\nprecision '+parameters.precision+' int;';if(parameters.precision==='highp'){precisionstring+='\n#define HIGH_PRECISION';}else if(parameters.precision==='mediump'){precisionstring+='\n#define MEDIUM_PRECISION';}else if(parameters.precision==='lowp'){precisionstring+='\n#define LOW_PRECISION';}return precisionstring;}function generateShadowMapTypeDefine(parameters){var shadowMapTypeDefine='SHADOWMAP_TYPE_BASIC';if(parameters.shadowMapType===PCFShadowMap){shadowMapTypeDefine='SHADOWMAP_TYPE_PCF';}else if(parameters.shadowMapType===PCFSoftShadowMap){shadowMapTypeDefine='SHADOWMAP_TYPE_PCF_SOFT';}else if(parameters.shadowMapType===VSMShadowMap){shadowMapTypeDefine='SHADOWMAP_TYPE_VSM';}return shadowMapTypeDefine;}function generateEnvMapTypeDefine(parameters){var envMapTypeDefine='ENVMAP_TYPE_CUBE';if(parameters.envMap){switch(parameters.envMapMode){case CubeReflectionMapping:case CubeRefractionMapping:envMapTypeDefine='ENVMAP_TYPE_CUBE';break;case CubeUVReflectionMapping:case CubeUVRefractionMapping:envMapTypeDefine='ENVMAP_TYPE_CUBE_UV';break;}}return envMapTypeDefine;}function generateEnvMapModeDefine(parameters){var envMapModeDefine='ENVMAP_MODE_REFLECTION';if(parameters.envMap){switch(parameters.envMapMode){case CubeRefractionMapping:case CubeUVRefractionMapping:envMapModeDefine='ENVMAP_MODE_REFRACTION';break;}}return envMapModeDefine;}function generateEnvMapBlendingDefine(parameters){var envMapBlendingDefine='ENVMAP_BLENDING_NONE';if(parameters.envMap){switch(parameters.combine){case MultiplyOperation:envMapBlendingDefine='ENVMAP_BLENDING_MULTIPLY';break;case MixOperation:envMapBlendingDefine='ENVMAP_BLENDING_MIX';break;case AddOperation:envMapBlendingDefine='ENVMAP_BLENDING_ADD';break;}}return envMapBlendingDefine;}function WebGLProgram(renderer,cacheKey,parameters,bindingStates){var gl=renderer.getContext();var defines=parameters.defines;var vertexShader=parameters.vertexShader;var fragmentShader=parameters.fragmentShader;var shadowMapTypeDefine=generateShadowMapTypeDefine(parameters);var envMapTypeDefine=generateEnvMapTypeDefine(parameters);var envMapModeDefine=generateEnvMapModeDefine(parameters);var envMapBlendingDefine=generateEnvMapBlendingDefine(parameters);var gammaFactorDefine=renderer.gammaFactor>0?renderer.gammaFactor:1.0;var customExtensions=parameters.isWebGL2?'':generateExtensions(parameters);var customDefines=generateDefines(defines);var program=gl.createProgram();var prefixVertex,prefixFragment;var versionString=parameters.glslVersion?'#version '+parameters.glslVersion+'\n':'';if(parameters.isRawShaderMaterial){prefixVertex=[customDefines].filter(filterEmptyLine).join('\n');if(prefixVertex.length>0){prefixVertex+='\n';}prefixFragment=[customExtensions,customDefines].filter(filterEmptyLine).join('\n');if(prefixFragment.length>0){prefixFragment+='\n';}}else {prefixVertex=[generatePrecision(parameters),'#define SHADER_NAME '+parameters.shaderName,customDefines,parameters.instancing?'#define USE_INSTANCING':'',parameters.instancingColor?'#define USE_INSTANCING_COLOR':'',parameters.supportsVertexTextures?'#define VERTEX_TEXTURES':'','#define GAMMA_FACTOR '+gammaFactorDefine,'#define MAX_BONES '+parameters.maxBones,parameters.useFog&&parameters.fog?'#define USE_FOG':'',parameters.useFog&&parameters.fogExp2?'#define FOG_EXP2':'',parameters.map?'#define USE_MAP':'',parameters.envMap?'#define USE_ENVMAP':'',parameters.envMap?'#define '+envMapModeDefine:'',parameters.lightMap?'#define USE_LIGHTMAP':'',parameters.aoMap?'#define USE_AOMAP':'',parameters.emissiveMap?'#define USE_EMISSIVEMAP':'',parameters.bumpMap?'#define USE_BUMPMAP':'',parameters.normalMap?'#define USE_NORMALMAP':'',parameters.normalMap&&parameters.objectSpaceNormalMap?'#define OBJECTSPACE_NORMALMAP':'',parameters.normalMap&&parameters.tangentSpaceNormalMap?'#define TANGENTSPACE_NORMALMAP':'',parameters.clearcoatMap?'#define USE_CLEARCOATMAP':'',parameters.clearcoatRoughnessMap?'#define USE_CLEARCOAT_ROUGHNESSMAP':'',parameters.clearcoatNormalMap?'#define USE_CLEARCOAT_NORMALMAP':'',parameters.displacementMap&&parameters.supportsVertexTextures?'#define USE_DISPLACEMENTMAP':'',parameters.specularMap?'#define USE_SPECULARMAP':'',parameters.roughnessMap?'#define USE_ROUGHNESSMAP':'',parameters.metalnessMap?'#define USE_METALNESSMAP':'',parameters.alphaMap?'#define USE_ALPHAMAP':'',parameters.transmissionMap?'#define USE_TRANSMISSIONMAP':'',parameters.vertexTangents?'#define USE_TANGENT':'',parameters.vertexColors?'#define USE_COLOR':'',parameters.vertexUvs?'#define USE_UV':'',parameters.uvsVertexOnly?'#define UVS_VERTEX_ONLY':'',parameters.flatShading?'#define FLAT_SHADED':'',parameters.skinning?'#define USE_SKINNING':'',parameters.useVertexTexture?'#define BONE_TEXTURE':'',parameters.morphTargets?'#define USE_MORPHTARGETS':'',parameters.morphNormals&&parameters.flatShading===false?'#define USE_MORPHNORMALS':'',parameters.doubleSided?'#define DOUBLE_SIDED':'',parameters.flipSided?'#define FLIP_SIDED':'',parameters.shadowMapEnabled?'#define USE_SHADOWMAP':'',parameters.shadowMapEnabled?'#define '+shadowMapTypeDefine:'',parameters.sizeAttenuation?'#define USE_SIZEATTENUATION':'',parameters.logarithmicDepthBuffer?'#define USE_LOGDEPTHBUF':'',parameters.logarithmicDepthBuffer&&parameters.rendererExtensionFragDepth?'#define USE_LOGDEPTHBUF_EXT':'','uniform mat4 modelMatrix;','uniform mat4 modelViewMatrix;','uniform mat4 projectionMatrix;','uniform mat4 viewMatrix;','uniform mat3 normalMatrix;','uniform vec3 cameraPosition;','uniform bool isOrthographic;','#ifdef USE_INSTANCING','	attribute mat4 instanceMatrix;','#endif','#ifdef USE_INSTANCING_COLOR','	attribute vec3 instanceColor;','#endif','attribute vec3 position;','attribute vec3 normal;','attribute vec2 uv;','#ifdef USE_TANGENT','	attribute vec4 tangent;','#endif','#ifdef USE_COLOR','	attribute vec3 color;','#endif','#ifdef USE_MORPHTARGETS','	attribute vec3 morphTarget0;','	attribute vec3 morphTarget1;','	attribute vec3 morphTarget2;','	attribute vec3 morphTarget3;','	#ifdef USE_MORPHNORMALS','		attribute vec3 morphNormal0;','		attribute vec3 morphNormal1;','		attribute vec3 morphNormal2;','		attribute vec3 morphNormal3;','	#else','		attribute vec3 morphTarget4;','		attribute vec3 morphTarget5;','		attribute vec3 morphTarget6;','		attribute vec3 morphTarget7;','	#endif','#endif','#ifdef USE_SKINNING','	attribute vec4 skinIndex;','	attribute vec4 skinWeight;','#endif','\n'].filter(filterEmptyLine).join('\n');prefixFragment=[customExtensions,generatePrecision(parameters),'#define SHADER_NAME '+parameters.shaderName,customDefines,parameters.alphaTest?'#define ALPHATEST '+parameters.alphaTest+(parameters.alphaTest%1?'':'.0'):'',// add '.0' if integer
'#define GAMMA_FACTOR '+gammaFactorDefine,parameters.useFog&&parameters.fog?'#define USE_FOG':'',parameters.useFog&&parameters.fogExp2?'#define FOG_EXP2':'',parameters.map?'#define USE_MAP':'',parameters.matcap?'#define USE_MATCAP':'',parameters.envMap?'#define USE_ENVMAP':'',parameters.envMap?'#define '+envMapTypeDefine:'',parameters.envMap?'#define '+envMapModeDefine:'',parameters.envMap?'#define '+envMapBlendingDefine:'',parameters.lightMap?'#define USE_LIGHTMAP':'',parameters.aoMap?'#define USE_AOMAP':'',parameters.emissiveMap?'#define USE_EMISSIVEMAP':'',parameters.bumpMap?'#define USE_BUMPMAP':'',parameters.normalMap?'#define USE_NORMALMAP':'',parameters.normalMap&&parameters.objectSpaceNormalMap?'#define OBJECTSPACE_NORMALMAP':'',parameters.normalMap&&parameters.tangentSpaceNormalMap?'#define TANGENTSPACE_NORMALMAP':'',parameters.clearcoatMap?'#define USE_CLEARCOATMAP':'',parameters.clearcoatRoughnessMap?'#define USE_CLEARCOAT_ROUGHNESSMAP':'',parameters.clearcoatNormalMap?'#define USE_CLEARCOAT_NORMALMAP':'',parameters.specularMap?'#define USE_SPECULARMAP':'',parameters.roughnessMap?'#define USE_ROUGHNESSMAP':'',parameters.metalnessMap?'#define USE_METALNESSMAP':'',parameters.alphaMap?'#define USE_ALPHAMAP':'',parameters.sheen?'#define USE_SHEEN':'',parameters.transmissionMap?'#define USE_TRANSMISSIONMAP':'',parameters.vertexTangents?'#define USE_TANGENT':'',parameters.vertexColors||parameters.instancingColor?'#define USE_COLOR':'',parameters.vertexUvs?'#define USE_UV':'',parameters.uvsVertexOnly?'#define UVS_VERTEX_ONLY':'',parameters.gradientMap?'#define USE_GRADIENTMAP':'',parameters.flatShading?'#define FLAT_SHADED':'',parameters.doubleSided?'#define DOUBLE_SIDED':'',parameters.flipSided?'#define FLIP_SIDED':'',parameters.shadowMapEnabled?'#define USE_SHADOWMAP':'',parameters.shadowMapEnabled?'#define '+shadowMapTypeDefine:'',parameters.premultipliedAlpha?'#define PREMULTIPLIED_ALPHA':'',parameters.physicallyCorrectLights?'#define PHYSICALLY_CORRECT_LIGHTS':'',parameters.logarithmicDepthBuffer?'#define USE_LOGDEPTHBUF':'',parameters.logarithmicDepthBuffer&&parameters.rendererExtensionFragDepth?'#define USE_LOGDEPTHBUF_EXT':'',(parameters.extensionShaderTextureLOD||parameters.envMap)&&parameters.rendererExtensionShaderTextureLod?'#define TEXTURE_LOD_EXT':'','uniform mat4 viewMatrix;','uniform vec3 cameraPosition;','uniform bool isOrthographic;',parameters.toneMapping!==NoToneMapping?'#define TONE_MAPPING':'',parameters.toneMapping!==NoToneMapping?ShaderChunk['tonemapping_pars_fragment']:'',// this code is required here because it is used by the toneMapping() function defined below
parameters.toneMapping!==NoToneMapping?getToneMappingFunction('toneMapping',parameters.toneMapping):'',parameters.dithering?'#define DITHERING':'',ShaderChunk['encodings_pars_fragment'],// this code is required here because it is used by the various encoding/decoding function defined below
parameters.map?getTexelDecodingFunction('mapTexelToLinear',parameters.mapEncoding):'',parameters.matcap?getTexelDecodingFunction('matcapTexelToLinear',parameters.matcapEncoding):'',parameters.envMap?getTexelDecodingFunction('envMapTexelToLinear',parameters.envMapEncoding):'',parameters.emissiveMap?getTexelDecodingFunction('emissiveMapTexelToLinear',parameters.emissiveMapEncoding):'',parameters.lightMap?getTexelDecodingFunction('lightMapTexelToLinear',parameters.lightMapEncoding):'',getTexelEncodingFunction('linearToOutputTexel',parameters.outputEncoding),parameters.depthPacking?'#define DEPTH_PACKING '+parameters.depthPacking:'','\n'].filter(filterEmptyLine).join('\n');}vertexShader=resolveIncludes(vertexShader);vertexShader=replaceLightNums(vertexShader,parameters);vertexShader=replaceClippingPlaneNums(vertexShader,parameters);fragmentShader=resolveIncludes(fragmentShader);fragmentShader=replaceLightNums(fragmentShader,parameters);fragmentShader=replaceClippingPlaneNums(fragmentShader,parameters);vertexShader=unrollLoops(vertexShader);fragmentShader=unrollLoops(fragmentShader);if(parameters.isWebGL2&&parameters.isRawShaderMaterial!==true){// GLSL 3.0 conversion for built-in materials and ShaderMaterial
versionString='#version 300 es\n';prefixVertex=['#define attribute in','#define varying out','#define texture2D texture'].join('\n')+'\n'+prefixVertex;prefixFragment=['#define varying in',parameters.glslVersion===GLSL3?'':'out highp vec4 pc_fragColor;',parameters.glslVersion===GLSL3?'':'#define gl_FragColor pc_fragColor','#define gl_FragDepthEXT gl_FragDepth','#define texture2D texture','#define textureCube texture','#define texture2DProj textureProj','#define texture2DLodEXT textureLod','#define texture2DProjLodEXT textureProjLod','#define textureCubeLodEXT textureLod','#define texture2DGradEXT textureGrad','#define texture2DProjGradEXT textureProjGrad','#define textureCubeGradEXT textureGrad'].join('\n')+'\n'+prefixFragment;}var vertexGlsl=versionString+prefixVertex+vertexShader;var fragmentGlsl=versionString+prefixFragment+fragmentShader;// console.log( '*VERTEX*', vertexGlsl );
// console.log( '*FRAGMENT*', fragmentGlsl );
var glVertexShader=WebGLShader(gl,35633,vertexGlsl);var glFragmentShader=WebGLShader(gl,35632,fragmentGlsl);gl.attachShader(program,glVertexShader);gl.attachShader(program,glFragmentShader);// Force a particular attribute to index 0.
if(parameters.index0AttributeName!==undefined){gl.bindAttribLocation(program,0,parameters.index0AttributeName);}else if(parameters.morphTargets===true){// programs with morphTargets displace position out of attribute 0
gl.bindAttribLocation(program,0,'position');}gl.linkProgram(program);// check for link errors
if(renderer.debug.checkShaderErrors){var programLog=gl.getProgramInfoLog(program).trim();var vertexLog=gl.getShaderInfoLog(glVertexShader).trim();var fragmentLog=gl.getShaderInfoLog(glFragmentShader).trim();var runnable=true;var haveDiagnostics=true;if(gl.getProgramParameter(program,35714)===false){runnable=false;var vertexErrors=getShaderErrors(gl,glVertexShader,'vertex');var fragmentErrors=getShaderErrors(gl,glFragmentShader,'fragment');console.error('THREE.WebGLProgram: shader error: ',gl.getError(),'35715',gl.getProgramParameter(program,35715),'gl.getProgramInfoLog',programLog,vertexErrors,fragmentErrors);//add:
if(fragmentErrors){console.log(fragmentGlsl.split("\n").map((a,i)=>"".concat(i+1).padEnd(5)+a).join("\n"));}else {console.log(vertexGlsl.split("\n").map((a,i)=>"".concat(i+1).padEnd(5)+a).join("\n"));}}else if(programLog!==''){console.warn('THREE.WebGLProgram: gl.getProgramInfoLog()',programLog);}else if(vertexLog===''||fragmentLog===''){haveDiagnostics=false;}if(haveDiagnostics){this.diagnostics={runnable:runnable,programLog:programLog,vertexShader:{log:vertexLog,prefix:prefixVertex},fragmentShader:{log:fragmentLog,prefix:prefixFragment}};}}// Clean up
// Crashes in iOS9 and iOS10. #18402
// gl.detachShader( program, glVertexShader );
// gl.detachShader( program, glFragmentShader );
gl.deleteShader(glVertexShader);gl.deleteShader(glFragmentShader);// set up caching for uniform locations
var cachedUniforms;this.getUniforms=function(){if(cachedUniforms===undefined){cachedUniforms=new WebGLUniforms(gl,program);}return cachedUniforms;};// set up caching for attribute locations
var cachedAttributes;this.getAttributes=function(){if(cachedAttributes===undefined){cachedAttributes=fetchAttributeLocations(gl,program);}return cachedAttributes;};// free resource
this.destroy=function(){bindingStates.releaseStatesOfProgram(this);gl.deleteProgram(program);this.program=undefined;};//
this.name=parameters.shaderName;this.id=programIdCount++;this.cacheKey=cacheKey;this.usedTimes=1;this.program=program;this.vertexShader=glVertexShader;this.fragmentShader=glFragmentShader;return this;}function WebGLPrograms(renderer,cubemaps,extensions,capabilities,bindingStates,clipping){var programs=[];var isWebGL2=capabilities.isWebGL2;var logarithmicDepthBuffer=capabilities.logarithmicDepthBuffer;var floatVertexTextures=capabilities.floatVertexTextures;var maxVertexUniforms=capabilities.maxVertexUniforms;var vertexTextures=capabilities.vertexTextures;var precision=capabilities.precision;var shaderIDs={MeshDepthMaterial:'depth',MeshDistanceMaterial:'distanceRGBA',MeshNormalMaterial:'normal',MeshBasicMaterial:'basic',MeshLambertMaterial:'lambert',MeshPhongMaterial:'phong',MeshToonMaterial:'toon',MeshStandardMaterial:'physical',MeshPhysicalMaterial:'physical',MeshMatcapMaterial:'matcap',LineBasicMaterial:'basic',LineDashedMaterial:'dashed',PointsMaterial:'points',ShadowMaterial:'shadow',SpriteMaterial:'sprite'};var parameterNames=['precision','isWebGL2','supportsVertexTextures','outputEncoding','instancing','instancingColor','map','mapEncoding','matcap','matcapEncoding','envMap','envMapMode','envMapEncoding','envMapCubeUV','lightMap','lightMapEncoding','aoMap','emissiveMap','emissiveMapEncoding','bumpMap','normalMap','objectSpaceNormalMap','tangentSpaceNormalMap','clearcoatMap','clearcoatRoughnessMap','clearcoatNormalMap','displacementMap','specularMap','roughnessMap','metalnessMap','gradientMap','alphaMap','combine','vertexColors','vertexTangents','vertexUvs','uvsVertexOnly','fog','useFog','fogExp2','flatShading','sizeAttenuation','logarithmicDepthBuffer','skinning','maxBones','useVertexTexture','morphTargets','morphNormals','maxMorphTargets','maxMorphNormals','premultipliedAlpha','numDirLights','numPointLights','numSpotLights','numHemiLights','numRectAreaLights','numDirLightShadows','numPointLightShadows','numSpotLightShadows','shadowMapEnabled','shadowMapType','toneMapping','physicallyCorrectLights','alphaTest','doubleSided','flipSided','numClippingPlanes','numClipIntersection','depthPacking','dithering','sheen','transmissionMap'];function getMaxBones(object){var skeleton=object.skeleton;var bones=skeleton.bones;if(floatVertexTextures){return 1024;}else {// default for when object is not specified
// ( for example when prebuilding shader to be used with multiple objects )
//
//  - leave some extra space for other uniforms
//  - limit here is ANGLE's 254 max uniform vectors
//    (up to 54 should be safe)
var nVertexUniforms=maxVertexUniforms;var nVertexMatrices=Math.floor((nVertexUniforms-20)/4);var maxBones=Math.min(nVertexMatrices,bones.length);if(maxBones<bones.length){console.warn('THREE.WebGLRenderer: Skeleton has '+bones.length+' bones. This GPU supports '+maxBones+'.');return 0;}return maxBones;}}function getTextureEncodingFromMap(map){var encoding;if(map&&map.isTexture){encoding=map.encoding;}else if(map&&map.isWebGLRenderTarget){console.warn('THREE.WebGLPrograms.getTextureEncodingFromMap: don\'t use render targets as textures. Use their .texture property instead.');encoding=map.texture.encoding;}else {encoding=LinearEncoding;}return encoding;}function getParameters(material,lights,shadows,scene,object){var fog=scene.fog;var environment=material.isMeshStandardMaterial?scene.environment:null;var envMap=cubemaps.get(material.envMap||environment);var shaderID=shaderIDs[material.type];// heuristics to create shader parameters according to lights in the scene
// (not to blow over maxLights budget)
var maxBones=object.isSkinnedMesh?getMaxBones(object):0;if(material.precision!==null){precision=capabilities.getMaxPrecision(material.precision);if(precision!==material.precision){console.warn('THREE.WebGLProgram.getParameters:',material.precision,'not supported, using',precision,'instead.');}}var vertexShader,fragmentShader;if(shaderID){var shader=ShaderLib[shaderID];vertexShader=shader.vertexShader;fragmentShader=shader.fragmentShader;}else {vertexShader=material.vertexShader;fragmentShader=material.fragmentShader;}var currentRenderTarget=renderer.getRenderTarget();var parameters={isWebGL2:isWebGL2,shaderID:shaderID,shaderName:material.type,vertexShader:vertexShader,fragmentShader:fragmentShader,defines:material.defines,isRawShaderMaterial:material.isRawShaderMaterial===true,glslVersion:material.glslVersion,precision:precision,instancing:object.isInstancedMesh===true,instancingColor:object.isInstancedMesh===true&&object.instanceColor!==null,supportsVertexTextures:vertexTextures,outputEncoding:currentRenderTarget!==null?getTextureEncodingFromMap(currentRenderTarget.texture):renderer.outputEncoding,map:!!material.map,mapEncoding:getTextureEncodingFromMap(material.map),matcap:!!material.matcap,matcapEncoding:getTextureEncodingFromMap(material.matcap),envMap:!!envMap,envMapMode:envMap&&envMap.mapping,envMapEncoding:getTextureEncodingFromMap(envMap),envMapCubeUV:!!envMap&&(envMap.mapping===CubeUVReflectionMapping||envMap.mapping===CubeUVRefractionMapping),lightMap:!!material.lightMap,lightMapEncoding:getTextureEncodingFromMap(material.lightMap),aoMap:!!material.aoMap,emissiveMap:!!material.emissiveMap,emissiveMapEncoding:getTextureEncodingFromMap(material.emissiveMap),bumpMap:!!material.bumpMap,normalMap:!!material.normalMap,objectSpaceNormalMap:material.normalMapType===ObjectSpaceNormalMap,tangentSpaceNormalMap:material.normalMapType===TangentSpaceNormalMap,clearcoatMap:!!material.clearcoatMap,clearcoatRoughnessMap:!!material.clearcoatRoughnessMap,clearcoatNormalMap:!!material.clearcoatNormalMap,displacementMap:!!material.displacementMap,roughnessMap:!!material.roughnessMap,metalnessMap:!!material.metalnessMap,specularMap:!!material.specularMap,alphaMap:!!material.alphaMap,gradientMap:!!material.gradientMap,sheen:!!material.sheen,transmissionMap:!!material.transmissionMap,combine:material.combine,vertexTangents:material.normalMap&&material.vertexTangents,vertexColors:material.vertexColors,vertexUvs:!!material.map||!!material.bumpMap||!!material.normalMap||!!material.specularMap||!!material.alphaMap||!!material.emissiveMap||!!material.roughnessMap||!!material.metalnessMap||!!material.clearcoatMap||!!material.clearcoatRoughnessMap||!!material.clearcoatNormalMap||!!material.displacementMap||!!material.transmissionMap,uvsVertexOnly:!(!!material.map||!!material.bumpMap||!!material.normalMap||!!material.specularMap||!!material.alphaMap||!!material.emissiveMap||!!material.roughnessMap||!!material.metalnessMap||!!material.clearcoatNormalMap||!!material.transmissionMap)&&!!material.displacementMap,fog:!!fog,useFog:material.fog,fogExp2:fog&&fog.isFogExp2,flatShading:material.flatShading,sizeAttenuation:material.sizeAttenuation,logarithmicDepthBuffer:logarithmicDepthBuffer,skinning:material.skinning&&maxBones>0,maxBones:maxBones,useVertexTexture:floatVertexTextures,morphTargets:material.morphTargets,morphNormals:material.morphNormals,maxMorphTargets:renderer.maxMorphTargets,maxMorphNormals:renderer.maxMorphNormals,numDirLights:lights.directional.length,numPointLights:lights.point.length,numSpotLights:lights.spot.length,numRectAreaLights:lights.rectArea.length,numHemiLights:lights.hemi.length,numDirLightShadows:lights.directionalShadowMap.length,numPointLightShadows:lights.pointShadowMap.length,numSpotLightShadows:lights.spotShadowMap.length,numClippingPlanes:clipping.numPlanes,numClipIntersection:clipping.numIntersection,dithering:material.dithering,shadowMapEnabled:renderer.shadowMap.enabled&&shadows.length>0,shadowMapType:renderer.shadowMap.type,toneMapping:material.toneMapped?renderer.toneMapping:NoToneMapping,physicallyCorrectLights:renderer.physicallyCorrectLights,premultipliedAlpha:material.premultipliedAlpha,alphaTest:material.alphaTest,doubleSided:material.side===DoubleSide,flipSided:material.side===BackSide,depthPacking:material.depthPacking!==undefined?material.depthPacking:false,index0AttributeName:material.index0AttributeName,extensionDerivatives:material.extensions&&material.extensions.derivatives,extensionFragDepth:material.extensions&&material.extensions.fragDepth,extensionDrawBuffers:material.extensions&&material.extensions.drawBuffers,extensionShaderTextureLOD:material.extensions&&material.extensions.shaderTextureLOD,rendererExtensionFragDepth:isWebGL2||extensions.has('EXT_frag_depth'),rendererExtensionDrawBuffers:isWebGL2||extensions.has('WEBGL_draw_buffers'),rendererExtensionShaderTextureLod:isWebGL2||extensions.has('EXT_shader_texture_lod'),customProgramCacheKey:material.customProgramCacheKey()};return parameters;}function getProgramCacheKey(parameters){var array=[];if(parameters.shaderID){array.push(parameters.shaderID);}else {array.push(parameters.fragmentShader);array.push(parameters.vertexShader);}if(parameters.defines!==undefined){for(var name in parameters.defines){array.push(name);array.push(parameters.defines[name]);}}if(parameters.isRawShaderMaterial===false){for(var _i95=0;_i95<parameterNames.length;_i95++){array.push(parameters[parameterNames[_i95]]);}array.push(renderer.outputEncoding);array.push(renderer.gammaFactor);}array.push(parameters.customProgramCacheKey);return array.join();}function getUniforms(material){var shaderID=shaderIDs[material.type];var uniforms;if(shaderID){var shader=ShaderLib[shaderID];uniforms=UniformsUtils.clone(shader.uniforms);}else {uniforms=material.uniforms;}return uniforms;}function acquireProgram(parameters,cacheKey){var program;// Check if code has been already compiled
for(var p=0,pl=programs.length;p<pl;p++){var preexistingProgram=programs[p];if(preexistingProgram.cacheKey===cacheKey){program=preexistingProgram;++program.usedTimes;break;}}if(program===undefined){program=new WebGLProgram(renderer,cacheKey,parameters,bindingStates);programs.push(program);}return program;}function releaseProgram(program){if(--program.usedTimes===0){// Remove from unordered set
var _i96=programs.indexOf(program);programs[_i96]=programs[programs.length-1];programs.pop();// Free WebGL resources
program.destroy();}}return {getParameters:getParameters,getProgramCacheKey:getProgramCacheKey,getUniforms:getUniforms,acquireProgram:acquireProgram,releaseProgram:releaseProgram,// Exposed for resource monitoring & error feedback via renderer.info:
programs:programs};}function WebGLProperties(){var properties=new WeakMap();function get(object){var map=properties.get(object);if(map===undefined){map={};properties.set(object,map);}return map;}function remove(object){properties.delete(object);}function update(object,key,value){properties.get(object)[key]=value;}function dispose(){properties=new WeakMap();}return {get:get,remove:remove,update:update,dispose:dispose};}function painterSortStable(a,b){if(a.groupOrder!==b.groupOrder){return a.groupOrder-b.groupOrder;}else if(a.renderOrder!==b.renderOrder){return a.renderOrder-b.renderOrder;}else if(a.program!==b.program){return a.program.id-b.program.id;}else if(a.material.id!==b.material.id){return a.material.id-b.material.id;}else if(a.z!==b.z){return a.z-b.z;}else {return a.id-b.id;}}function reversePainterSortStable(a,b){if(a.groupOrder!==b.groupOrder){return a.groupOrder-b.groupOrder;}else if(a.renderOrder!==b.renderOrder){return a.renderOrder-b.renderOrder;}else if(a.z!==b.z){return b.z-a.z;}else {return a.id-b.id;}}function WebGLRenderList(properties){var renderItems=[];var renderItemsIndex=0;var opaque=[];var transparent=[];var defaultProgram={id:-1};function init(){renderItemsIndex=0;opaque.length=0;transparent.length=0;}function getNextRenderItem(object,geometry,material,groupOrder,z,group){var renderItem=renderItems[renderItemsIndex];var materialProperties=properties.get(material);if(renderItem===undefined){renderItem={id:object.id,object:object,geometry:geometry,material:material,program:materialProperties.program||defaultProgram,groupOrder:groupOrder,renderOrder:object.renderOrder,z:z,group:group};renderItems[renderItemsIndex]=renderItem;}else {renderItem.id=object.id;renderItem.object=object;renderItem.geometry=geometry;renderItem.material=material;renderItem.program=materialProperties.program||defaultProgram;renderItem.groupOrder=groupOrder;renderItem.renderOrder=object.renderOrder;renderItem.z=z;renderItem.group=group;}renderItemsIndex++;return renderItem;}function push(object,geometry,material,groupOrder,z,group){var renderItem=getNextRenderItem(object,geometry,material,groupOrder,z,group);(material.transparent===true?transparent:opaque).push(renderItem);}function unshift(object,geometry,material,groupOrder,z,group){var renderItem=getNextRenderItem(object,geometry,material,groupOrder,z,group);(material.transparent===true?transparent:opaque).unshift(renderItem);}function sort(customOpaqueSort,customTransparentSort){if(opaque.length>1)opaque.sort(customOpaqueSort||painterSortStable);if(transparent.length>1)transparent.sort(customTransparentSort||reversePainterSortStable);}function finish(){// Clear references from inactive renderItems in the list
for(var _i97=renderItemsIndex,il=renderItems.length;_i97<il;_i97++){var renderItem=renderItems[_i97];if(renderItem.id===null)break;renderItem.id=null;renderItem.object=null;renderItem.geometry=null;renderItem.material=null;renderItem.program=null;renderItem.group=null;}}return {opaque:opaque,transparent:transparent,init:init,push:push,unshift:unshift,finish:finish,sort:sort};}function WebGLRenderLists(properties){var lists=new WeakMap();function get(scene,camera){var cameras=lists.get(scene);var list;if(cameras===undefined){list=new WebGLRenderList(properties);lists.set(scene,new WeakMap());lists.get(scene).set(camera,list);}else {list=cameras.get(camera);if(list===undefined){list=new WebGLRenderList(properties);cameras.set(camera,list);}}return list;}function dispose(){lists=new WeakMap();}return {get:get,dispose:dispose};}function UniformsCache(){var lights={};return {get:function get(light){if(lights[light.id]!==undefined){return lights[light.id];}var uniforms;switch(light.type){case'DirectionalLight':uniforms={direction:new Vector3(),color:new Color()};break;case'SpotLight':uniforms={position:new Vector3(),direction:new Vector3(),color:new Color(),distance:0,coneCos:0,penumbraCos:0,decay:0};break;case'PointLight':uniforms={position:new Vector3(),color:new Color(),distance:0,decay:0};break;case'HemisphereLight':uniforms={direction:new Vector3(),skyColor:new Color(),groundColor:new Color()};break;case'RectAreaLight':uniforms={color:new Color(),position:new Vector3(),halfWidth:new Vector3(),halfHeight:new Vector3()};break;}lights[light.id]=uniforms;return uniforms;}};}function ShadowUniformsCache(){var lights={};return {get:function get(light){if(lights[light.id]!==undefined){return lights[light.id];}var uniforms;switch(light.type){case'DirectionalLight':uniforms={shadowBias:0,shadowNormalBias:0,shadowRadius:1,shadowMapSize:new Vector2()};break;case'SpotLight':uniforms={shadowBias:0,shadowNormalBias:0,shadowRadius:1,shadowMapSize:new Vector2()};break;case'PointLight':uniforms={shadowBias:0,shadowNormalBias:0,shadowRadius:1,shadowMapSize:new Vector2(),shadowCameraNear:1,shadowCameraFar:1000};break;// TODO (abelnation): set RectAreaLight shadow uniforms
}lights[light.id]=uniforms;return uniforms;}};}var nextVersion=0;function shadowCastingLightsFirst(lightA,lightB){return (lightB.castShadow?1:0)-(lightA.castShadow?1:0);}function WebGLLights(extensions,capabilities){var cache=new UniformsCache();var shadowCache=ShadowUniformsCache();var state={version:0,hash:{directionalLength:-1,pointLength:-1,spotLength:-1,rectAreaLength:-1,hemiLength:-1,numDirectionalShadows:-1,numPointShadows:-1,numSpotShadows:-1},ambient:[0,0,0],probe:[],directional:[],directionalShadow:[],directionalShadowMap:[],directionalShadowMatrix:[],spot:[],spotShadow:[],spotShadowMap:[],spotShadowMatrix:[],rectArea:[],rectAreaLTC1:null,rectAreaLTC2:null,point:[],pointShadow:[],pointShadowMap:[],pointShadowMatrix:[],hemi:[]};for(var _i98=0;_i98<9;_i98++)state.probe.push(new Vector3());var vector3=new Vector3();var matrix4=new Matrix4();var matrix42=new Matrix4();function setup(lights){var r=0,g=0,b=0;for(var _i99=0;_i99<9;_i99++)state.probe[_i99].set(0,0,0);var directionalLength=0;var pointLength=0;var spotLength=0;var rectAreaLength=0;var hemiLength=0;var numDirectionalShadows=0;var numPointShadows=0;var numSpotShadows=0;lights.sort(shadowCastingLightsFirst);for(var _i100=0,l=lights.length;_i100<l;_i100++){var light=lights[_i100];var color=light.color;var intensity=light.intensity;var distance=light.distance;var shadowMap=light.shadow&&light.shadow.map?light.shadow.map.texture:null;if(light.isAmbientLight){r+=color.r*intensity;g+=color.g*intensity;b+=color.b*intensity;}else if(light.isLightProbe){for(var j=0;j<9;j++){state.probe[j].addScaledVector(light.sh.coefficients[j],intensity);}}else if(light.isDirectionalLight){var uniforms=cache.get(light);uniforms.color.copy(light.color).multiplyScalar(light.intensity);if(light.castShadow){var shadow=light.shadow;var shadowUniforms=shadowCache.get(light);shadowUniforms.shadowBias=shadow.bias;shadowUniforms.shadowNormalBias=shadow.normalBias;shadowUniforms.shadowRadius=shadow.radius;shadowUniforms.shadowMapSize=shadow.mapSize;state.directionalShadow[directionalLength]=shadowUniforms;state.directionalShadowMap[directionalLength]=shadowMap;state.directionalShadowMatrix[directionalLength]=light.shadow.matrix;numDirectionalShadows++;}state.directional[directionalLength]=uniforms;directionalLength++;}else if(light.isSpotLight){var _uniforms=cache.get(light);_uniforms.position.setFromMatrixPosition(light.matrixWorld);_uniforms.color.copy(color).multiplyScalar(intensity);_uniforms.distance=distance;_uniforms.coneCos=Math.cos(light.angle);_uniforms.penumbraCos=Math.cos(light.angle*(1-light.penumbra));_uniforms.decay=light.decay;if(light.castShadow){var _shadow=light.shadow;var _shadowUniforms=shadowCache.get(light);_shadowUniforms.shadowBias=_shadow.bias;_shadowUniforms.shadowNormalBias=_shadow.normalBias;_shadowUniforms.shadowRadius=_shadow.radius;_shadowUniforms.shadowMapSize=_shadow.mapSize;state.spotShadow[spotLength]=_shadowUniforms;state.spotShadowMap[spotLength]=shadowMap;state.spotShadowMatrix[spotLength]=light.shadow.matrix;numSpotShadows++;}state.spot[spotLength]=_uniforms;spotLength++;}else if(light.isRectAreaLight){var _uniforms2=cache.get(light);// (a) intensity is the total visible light emitted
//uniforms.color.copy( color ).multiplyScalar( intensity / ( light.width * light.height * Math.PI ) );
// (b) intensity is the brightness of the light
_uniforms2.color.copy(color).multiplyScalar(intensity);_uniforms2.halfWidth.set(light.width*0.5,0.0,0.0);_uniforms2.halfHeight.set(0.0,light.height*0.5,0.0);state.rectArea[rectAreaLength]=_uniforms2;rectAreaLength++;}else if(light.isPointLight){var _uniforms3=cache.get(light);_uniforms3.color.copy(light.color).multiplyScalar(light.intensity);_uniforms3.distance=light.distance;_uniforms3.decay=light.decay;if(light.castShadow){var _shadow2=light.shadow;var _shadowUniforms2=shadowCache.get(light);_shadowUniforms2.shadowBias=_shadow2.bias;_shadowUniforms2.shadowNormalBias=_shadow2.normalBias;_shadowUniforms2.shadowRadius=_shadow2.radius;_shadowUniforms2.shadowMapSize=_shadow2.mapSize;_shadowUniforms2.shadowCameraNear=_shadow2.camera.near;_shadowUniforms2.shadowCameraFar=_shadow2.camera.far;state.pointShadow[pointLength]=_shadowUniforms2;state.pointShadowMap[pointLength]=shadowMap;state.pointShadowMatrix[pointLength]=light.shadow.matrix;numPointShadows++;}state.point[pointLength]=_uniforms3;pointLength++;}else if(light.isHemisphereLight){var _uniforms4=cache.get(light);_uniforms4.skyColor.copy(light.color).multiplyScalar(intensity);_uniforms4.groundColor.copy(light.groundColor).multiplyScalar(intensity);state.hemi[hemiLength]=_uniforms4;hemiLength++;}}if(rectAreaLength>0){if(capabilities.isWebGL2){// WebGL 2
state.rectAreaLTC1=UniformsLib.LTC_FLOAT_1;state.rectAreaLTC2=UniformsLib.LTC_FLOAT_2;}else {// WebGL 1
if(extensions.has('OES_texture_float_linear')===true){state.rectAreaLTC1=UniformsLib.LTC_FLOAT_1;state.rectAreaLTC2=UniformsLib.LTC_FLOAT_2;}else if(extensions.has('OES_texture_half_float_linear')===true){state.rectAreaLTC1=UniformsLib.LTC_HALF_1;state.rectAreaLTC2=UniformsLib.LTC_HALF_2;}else {console.error('THREE.WebGLRenderer: Unable to use RectAreaLight. Missing WebGL extensions.');}}}state.ambient[0]=r;state.ambient[1]=g;state.ambient[2]=b;var hash=state.hash;if(hash.directionalLength!==directionalLength||hash.pointLength!==pointLength||hash.spotLength!==spotLength||hash.rectAreaLength!==rectAreaLength||hash.hemiLength!==hemiLength||hash.numDirectionalShadows!==numDirectionalShadows||hash.numPointShadows!==numPointShadows||hash.numSpotShadows!==numSpotShadows){state.directional.length=directionalLength;state.spot.length=spotLength;state.rectArea.length=rectAreaLength;state.point.length=pointLength;state.hemi.length=hemiLength;state.directionalShadow.length=numDirectionalShadows;state.directionalShadowMap.length=numDirectionalShadows;state.pointShadow.length=numPointShadows;state.pointShadowMap.length=numPointShadows;state.spotShadow.length=numSpotShadows;state.spotShadowMap.length=numSpotShadows;state.directionalShadowMatrix.length=numDirectionalShadows;state.pointShadowMatrix.length=numPointShadows;state.spotShadowMatrix.length=numSpotShadows;hash.directionalLength=directionalLength;hash.pointLength=pointLength;hash.spotLength=spotLength;hash.rectAreaLength=rectAreaLength;hash.hemiLength=hemiLength;hash.numDirectionalShadows=numDirectionalShadows;hash.numPointShadows=numPointShadows;hash.numSpotShadows=numSpotShadows;state.version=nextVersion++;}}function setupView(lights,camera){var directionalLength=0;var pointLength=0;var spotLength=0;var rectAreaLength=0;var hemiLength=0;var viewMatrix=camera.matrixWorldInverse;for(var _i101=0,l=lights.length;_i101<l;_i101++){var light=lights[_i101];if(light.isDirectionalLight){var uniforms=state.directional[directionalLength];uniforms.direction.setFromMatrixPosition(light.matrixWorld);vector3.setFromMatrixPosition(light.target.matrixWorld);uniforms.direction.sub(vector3);uniforms.direction.transformDirection(viewMatrix);directionalLength++;}else if(light.isSpotLight){var _uniforms5=state.spot[spotLength];_uniforms5.position.setFromMatrixPosition(light.matrixWorld);_uniforms5.position.applyMatrix4(viewMatrix);_uniforms5.direction.setFromMatrixPosition(light.matrixWorld);vector3.setFromMatrixPosition(light.target.matrixWorld);_uniforms5.direction.sub(vector3);_uniforms5.direction.transformDirection(viewMatrix);spotLength++;}else if(light.isRectAreaLight){var _uniforms6=state.rectArea[rectAreaLength];_uniforms6.position.setFromMatrixPosition(light.matrixWorld);_uniforms6.position.applyMatrix4(viewMatrix);// extract local rotation of light to derive width/height half vectors
matrix42.identity();matrix4.copy(light.matrixWorld);matrix4.premultiply(viewMatrix);matrix42.extractRotation(matrix4);_uniforms6.halfWidth.set(light.width*0.5,0.0,0.0);_uniforms6.halfHeight.set(0.0,light.height*0.5,0.0);_uniforms6.halfWidth.applyMatrix4(matrix42);_uniforms6.halfHeight.applyMatrix4(matrix42);rectAreaLength++;}else if(light.isPointLight){var _uniforms7=state.point[pointLength];_uniforms7.position.setFromMatrixPosition(light.matrixWorld);_uniforms7.position.applyMatrix4(viewMatrix);pointLength++;}else if(light.isHemisphereLight){var _uniforms8=state.hemi[hemiLength];_uniforms8.direction.setFromMatrixPosition(light.matrixWorld);_uniforms8.direction.transformDirection(viewMatrix);_uniforms8.direction.normalize();hemiLength++;}}}return {setup:setup,setupView:setupView,state:state};}function WebGLRenderState(extensions,capabilities){var lights=new WebGLLights(extensions,capabilities);var lightsArray=[];var shadowsArray=[];function init(){lightsArray.length=0;shadowsArray.length=0;}function pushLight(light){lightsArray.push(light);}function pushShadow(shadowLight){shadowsArray.push(shadowLight);}function setupLights(){lights.setup(lightsArray);}function setupLightsView(camera){lights.setupView(lightsArray,camera);}var state={lightsArray:lightsArray,shadowsArray:shadowsArray,lights:lights};return {init:init,state:state,setupLights:setupLights,setupLightsView:setupLightsView,pushLight:pushLight,pushShadow:pushShadow};}function WebGLRenderStates(extensions,capabilities){var renderStates=new WeakMap();function get(scene){var renderCallDepth=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;var renderState;if(renderStates.has(scene)===false){renderState=new WebGLRenderState(extensions,capabilities);renderStates.set(scene,[]);renderStates.get(scene).push(renderState);}else {if(renderCallDepth>=renderStates.get(scene).length){renderState=new WebGLRenderState(extensions,capabilities);renderStates.get(scene).push(renderState);}else {renderState=renderStates.get(scene)[renderCallDepth];}}return renderState;}function dispose(){renderStates=new WeakMap();}return {get:get,dispose:dispose};}/**
 * parameters = {
 *
 *  opacity: <float>,
 *
 *  map: new THREE.Texture( <Image> ),
 *
 *  alphaMap: new THREE.Texture( <Image> ),
 *
 *  displacementMap: new THREE.Texture( <Image> ),
 *  displacementScale: <float>,
 *  displacementBias: <float>,
 *
 *  wireframe: <boolean>,
 *  wireframeLinewidth: <float>
 * }
 */function MeshDepthMaterial(parameters){Material.call(this);this.type='MeshDepthMaterial';this.depthPacking=BasicDepthPacking;this.skinning=false;this.morphTargets=false;this.map=null;this.alphaMap=null;this.displacementMap=null;this.displacementScale=1;this.displacementBias=0;this.wireframe=false;this.wireframeLinewidth=1;this.fog=false;this.setValues(parameters);}MeshDepthMaterial.prototype=Object.create(Material.prototype);MeshDepthMaterial.prototype.constructor=MeshDepthMaterial;MeshDepthMaterial.prototype.isMeshDepthMaterial=true;MeshDepthMaterial.prototype.copy=function(source){Material.prototype.copy.call(this,source);this.depthPacking=source.depthPacking;this.skinning=source.skinning;this.morphTargets=source.morphTargets;this.map=source.map;this.alphaMap=source.alphaMap;this.displacementMap=source.displacementMap;this.displacementScale=source.displacementScale;this.displacementBias=source.displacementBias;this.wireframe=source.wireframe;this.wireframeLinewidth=source.wireframeLinewidth;return this;};/**
 * parameters = {
 *
 *  referencePosition: <float>,
 *  nearDistance: <float>,
 *  farDistance: <float>,
 *
 *  skinning: <bool>,
 *  morphTargets: <bool>,
 *
 *  map: new THREE.Texture( <Image> ),
 *
 *  alphaMap: new THREE.Texture( <Image> ),
 *
 *  displacementMap: new THREE.Texture( <Image> ),
 *  displacementScale: <float>,
 *  displacementBias: <float>
 *
 * }
 */function MeshDistanceMaterial(parameters){Material.call(this);this.type='MeshDistanceMaterial';this.referencePosition=new Vector3();this.nearDistance=1;this.farDistance=1000;this.skinning=false;this.morphTargets=false;this.map=null;this.alphaMap=null;this.displacementMap=null;this.displacementScale=1;this.displacementBias=0;this.fog=false;this.setValues(parameters);}MeshDistanceMaterial.prototype=Object.create(Material.prototype);MeshDistanceMaterial.prototype.constructor=MeshDistanceMaterial;MeshDistanceMaterial.prototype.isMeshDistanceMaterial=true;MeshDistanceMaterial.prototype.copy=function(source){Material.prototype.copy.call(this,source);this.referencePosition.copy(source.referencePosition);this.nearDistance=source.nearDistance;this.farDistance=source.farDistance;this.skinning=source.skinning;this.morphTargets=source.morphTargets;this.map=source.map;this.alphaMap=source.alphaMap;this.displacementMap=source.displacementMap;this.displacementScale=source.displacementScale;this.displacementBias=source.displacementBias;return this;};var vsm_frag="uniform sampler2D shadow_pass;\nuniform vec2 resolution;\nuniform float radius;\n#include <packing>\nvoid main() {\n\tfloat mean = 0.0;\n\tfloat squared_mean = 0.0;\n\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy ) / resolution ) );\n\tfor ( float i = -1.0; i < 1.0 ; i += SAMPLE_RATE) {\n\t\t#ifdef HORIZONTAL_PASS\n\t\t\tvec2 distribution = unpackRGBATo2Half( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( i, 0.0 ) * radius ) / resolution ) );\n\t\t\tmean += distribution.x;\n\t\t\tsquared_mean += distribution.y * distribution.y + distribution.x * distribution.x;\n\t\t#else\n\t\t\tfloat depth = unpackRGBAToDepth( texture2D( shadow_pass, ( gl_FragCoord.xy + vec2( 0.0, i ) * radius ) / resolution ) );\n\t\t\tmean += depth;\n\t\t\tsquared_mean += depth * depth;\n\t\t#endif\n\t}\n\tmean = mean * HALF_SAMPLE_RATE;\n\tsquared_mean = squared_mean * HALF_SAMPLE_RATE;\n\tfloat std_dev = sqrt( squared_mean - mean * mean );\n\tgl_FragColor = pack2HalfToRGBA( vec2( mean, std_dev ) );\n}";var vsm_vert="void main() {\n\tgl_Position = vec4( position, 1.0 );\n}";function WebGLShadowMap(_renderer,_objects,maxTextureSize){var _frustum=new Frustum();var _shadowMapSize=new Vector2(),_viewportSize=new Vector2(),_viewport=new Vector4(),_depthMaterials=[],_distanceMaterials=[],_materialCache={};var shadowSide={0:BackSide,1:FrontSide,2:DoubleSide};var shadowMaterialVertical=new ShaderMaterial({defines:{SAMPLE_RATE:2.0/8.0,HALF_SAMPLE_RATE:1.0/8.0},uniforms:{shadow_pass:{value:null},resolution:{value:new Vector2()},radius:{value:4.0}},vertexShader:vsm_vert,fragmentShader:vsm_frag});var shadowMaterialHorizontal=shadowMaterialVertical.clone();shadowMaterialHorizontal.defines.HORIZONTAL_PASS=1;var fullScreenTri=new BufferGeometry();fullScreenTri.setAttribute('position',new BufferAttribute(new Float32Array([-1,-1,0.5,3,-1,0.5,-1,3,0.5]),3));var fullScreenMesh=new Mesh(fullScreenTri,shadowMaterialVertical);var scope=this;this.enabled=false;this.autoUpdate=true;this.needsUpdate=false;this.type=PCFShadowMap;this.render=function(lights,scene,camera){if(scope.enabled===false)return;if(scope.autoUpdate===false&&scope.needsUpdate===false)return;if(lights.length===0)return;var currentRenderTarget=_renderer.getRenderTarget();var activeCubeFace=_renderer.getActiveCubeFace();var activeMipmapLevel=_renderer.getActiveMipmapLevel();var _state=_renderer.state;// Set GL state for depth map.
_state.setBlending(NoBlending);_state.buffers.color.setClear(1,1,1,1);_state.buffers.depth.setTest(true);_state.setScissorTest(false);// render depth map
for(var _i102=0,il=lights.length;_i102<il;_i102++){var light=lights[_i102];var shadow=light.shadow;if(shadow===undefined){console.warn('THREE.WebGLShadowMap:',light,'has no shadow.');continue;}if(shadow.autoUpdate===false&&shadow.needsUpdate===false)continue;_shadowMapSize.copy(shadow.mapSize);var shadowFrameExtents=shadow.getFrameExtents();_shadowMapSize.multiply(shadowFrameExtents);_viewportSize.copy(shadow.mapSize);if(_shadowMapSize.x>maxTextureSize||_shadowMapSize.y>maxTextureSize){if(_shadowMapSize.x>maxTextureSize){_viewportSize.x=Math.floor(maxTextureSize/shadowFrameExtents.x);_shadowMapSize.x=_viewportSize.x*shadowFrameExtents.x;shadow.mapSize.x=_viewportSize.x;}if(_shadowMapSize.y>maxTextureSize){_viewportSize.y=Math.floor(maxTextureSize/shadowFrameExtents.y);_shadowMapSize.y=_viewportSize.y*shadowFrameExtents.y;shadow.mapSize.y=_viewportSize.y;}}if(shadow.map===null&&!shadow.isPointLightShadow&&this.type===VSMShadowMap){var pars={minFilter:LinearFilter,magFilter:LinearFilter,format:RGBAFormat};shadow.map=new WebGLRenderTarget(_shadowMapSize.x,_shadowMapSize.y,pars);shadow.map.texture.name=light.name+'.shadowMap';shadow.mapPass=new WebGLRenderTarget(_shadowMapSize.x,_shadowMapSize.y,pars);shadow.camera.updateProjectionMatrix();}if(shadow.map===null){var _pars={minFilter:NearestFilter,magFilter:NearestFilter,format:RGBAFormat};shadow.map=new WebGLRenderTarget(_shadowMapSize.x,_shadowMapSize.y,_pars);shadow.map.texture.name=light.name+'.shadowMap';shadow.camera.updateProjectionMatrix();}_renderer.setRenderTarget(shadow.map);_renderer.clear();var viewportCount=shadow.getViewportCount();for(var vp=0;vp<viewportCount;vp++){var viewport=shadow.getViewport(vp);_viewport.set(_viewportSize.x*viewport.x,_viewportSize.y*viewport.y,_viewportSize.x*viewport.z,_viewportSize.y*viewport.w);_state.viewport(_viewport);shadow.updateMatrices(light,vp);_frustum=shadow.getFrustum();renderObject(scene,camera,shadow.camera,light,this.type);}// do blur pass for VSM
if(!shadow.isPointLightShadow&&this.type===VSMShadowMap){VSMPass(shadow,camera);}shadow.needsUpdate=false;}scope.needsUpdate=false;_renderer.setRenderTarget(currentRenderTarget,activeCubeFace,activeMipmapLevel);};function VSMPass(shadow,camera){var geometry=_objects.update(fullScreenMesh);// vertical pass
shadowMaterialVertical.uniforms.shadow_pass.value=shadow.map.texture;shadowMaterialVertical.uniforms.resolution.value=shadow.mapSize;shadowMaterialVertical.uniforms.radius.value=shadow.radius;_renderer.setRenderTarget(shadow.mapPass);_renderer.clear();_renderer.renderBufferDirect(camera,null,geometry,shadowMaterialVertical,fullScreenMesh,null);// horizontal pass
shadowMaterialHorizontal.uniforms.shadow_pass.value=shadow.mapPass.texture;shadowMaterialHorizontal.uniforms.resolution.value=shadow.mapSize;shadowMaterialHorizontal.uniforms.radius.value=shadow.radius;_renderer.setRenderTarget(shadow.map);_renderer.clear();_renderer.renderBufferDirect(camera,null,geometry,shadowMaterialHorizontal,fullScreenMesh,null);}function getDepthMaterialVariant(useMorphing,useSkinning,useInstancing){var index=useMorphing<<0|useSkinning<<1|useInstancing<<2;var material=_depthMaterials[index];if(material===undefined){material=new MeshDepthMaterial({depthPacking:RGBADepthPacking,morphTargets:useMorphing,skinning:useSkinning});_depthMaterials[index]=material;}return material;}function getDistanceMaterialVariant(useMorphing,useSkinning,useInstancing){var index=useMorphing<<0|useSkinning<<1|useInstancing<<2;var material=_distanceMaterials[index];if(material===undefined){material=new MeshDistanceMaterial({morphTargets:useMorphing,skinning:useSkinning});_distanceMaterials[index]=material;}return material;}function getDepthMaterial(object,geometry,material,light,shadowCameraNear,shadowCameraFar,type){var result=null;var getMaterialVariant=getDepthMaterialVariant;var customMaterial=object.customDepthMaterial;if(light.isPointLight===true){getMaterialVariant=getDistanceMaterialVariant;customMaterial=object.customDistanceMaterial;}if(customMaterial===undefined){var useMorphing=false;if(material.morphTargets===true){useMorphing=geometry.morphAttributes&&geometry.morphAttributes.position&&geometry.morphAttributes.position.length>0;}var useSkinning=false;if(object.isSkinnedMesh===true){if(material.skinning===true){useSkinning=true;}else {console.warn('THREE.WebGLShadowMap: THREE.SkinnedMesh with material.skinning set to false:',object);}}var useInstancing=object.isInstancedMesh===true;result=getMaterialVariant(useMorphing,useSkinning,useInstancing);}else {result=customMaterial;}if(_renderer.localClippingEnabled&&material.clipShadows===true&&material.clippingPlanes.length!==0){// in this case we need a unique material instance reflecting the
// appropriate state
var keyA=result.uuid,keyB=material.uuid;var materialsForVariant=_materialCache[keyA];if(materialsForVariant===undefined){materialsForVariant={};_materialCache[keyA]=materialsForVariant;}var cachedMaterial=materialsForVariant[keyB];if(cachedMaterial===undefined){cachedMaterial=result.clone();materialsForVariant[keyB]=cachedMaterial;}result=cachedMaterial;}result.visible=material.visible;result.wireframe=material.wireframe;if(type===VSMShadowMap){result.side=material.shadowSide!==null?material.shadowSide:material.side;}else {result.side=material.shadowSide!==null?material.shadowSide:shadowSide[material.side];}result.clipShadows=material.clipShadows;result.clippingPlanes=material.clippingPlanes;result.clipIntersection=material.clipIntersection;result.wireframeLinewidth=material.wireframeLinewidth;result.linewidth=material.linewidth;if(light.isPointLight===true&&result.isMeshDistanceMaterial===true){result.referencePosition.setFromMatrixPosition(light.matrixWorld);result.nearDistance=shadowCameraNear;result.farDistance=shadowCameraFar;}return result;}function renderObject(object,camera,shadowCamera,light,type){if(object.visible===false)return;var visible=object.layers.test(camera.layers);if(visible&&(object.isMesh||object.isLine||object.isPoints)){if((object.castShadow||object.receiveShadow&&type===VSMShadowMap)&&(!object.frustumCulled||_frustum.intersectsObject(object))){object.modelViewMatrix.multiplyMatrices(shadowCamera.matrixWorldInverse,object.matrixWorld);var geometry=_objects.update(object);var material=object.material;if(Array.isArray(material)){var groups=geometry.groups;for(var k=0,kl=groups.length;k<kl;k++){var group=groups[k];var groupMaterial=material[group.materialIndex];if(groupMaterial&&groupMaterial.visible){var depthMaterial=getDepthMaterial(object,geometry,groupMaterial,light,shadowCamera.near,shadowCamera.far,type);_renderer.renderBufferDirect(shadowCamera,null,geometry,depthMaterial,object,group);}}}else if(material.visible){var _depthMaterial=getDepthMaterial(object,geometry,material,light,shadowCamera.near,shadowCamera.far,type);_renderer.renderBufferDirect(shadowCamera,null,geometry,_depthMaterial,object,null);}}}var children=object.children;for(var _i103=0,l=children.length;_i103<l;_i103++){renderObject(children[_i103],camera,shadowCamera,light,type);}}}function WebGLState(gl,extensions,capabilities){var isWebGL2=capabilities.isWebGL2;function ColorBuffer(){var locked=false;var color=new Vector4();var currentColorMask=null;var currentColorClear=new Vector4(0,0,0,0);return {setMask:function setMask(colorMask){if(currentColorMask!==colorMask&&!locked){gl.colorMask(colorMask,colorMask,colorMask,colorMask);currentColorMask=colorMask;}},setLocked:function setLocked(lock){locked=lock;},setClear:function setClear(r,g,b,a,premultipliedAlpha){if(premultipliedAlpha===true){r*=a;g*=a;b*=a;}color.set(r,g,b,a);if(currentColorClear.equals(color)===false){gl.clearColor(r,g,b,a);currentColorClear.copy(color);}},reset:function reset(){locked=false;currentColorMask=null;currentColorClear.set(-1,0,0,0);// set to invalid state
}};}function DepthBuffer(){var locked=false;var currentDepthMask=null;var currentDepthFunc=null;var currentDepthClear=null;return {setTest:function setTest(depthTest){if(depthTest){enable(2929);}else {disable(2929);}},setMask:function setMask(depthMask){if(currentDepthMask!==depthMask&&!locked){gl.depthMask(depthMask);currentDepthMask=depthMask;}},setFunc:function setFunc(depthFunc){if(currentDepthFunc!==depthFunc){if(depthFunc){switch(depthFunc){case NeverDepth:gl.depthFunc(512);break;case AlwaysDepth:gl.depthFunc(519);break;case LessDepth:gl.depthFunc(513);break;case LessEqualDepth:gl.depthFunc(515);break;case EqualDepth:gl.depthFunc(514);break;case GreaterEqualDepth:gl.depthFunc(518);break;case GreaterDepth:gl.depthFunc(516);break;case NotEqualDepth:gl.depthFunc(517);break;default:gl.depthFunc(515);}}else {gl.depthFunc(515);}currentDepthFunc=depthFunc;}},setLocked:function setLocked(lock){locked=lock;},setClear:function setClear(depth){if(currentDepthClear!==depth){gl.clearDepth(depth);currentDepthClear=depth;}},reset:function reset(){locked=false;currentDepthMask=null;currentDepthFunc=null;currentDepthClear=null;}};}function StencilBuffer(){var locked=false;var currentStencilMask=null;var currentStencilFunc=null;var currentStencilRef=null;var currentStencilFuncMask=null;var currentStencilFail=null;var currentStencilZFail=null;var currentStencilZPass=null;var currentStencilClear=null;return {setTest:function setTest(stencilTest){if(!locked){if(stencilTest){enable(2960);}else {disable(2960);}}},setMask:function setMask(stencilMask){if(currentStencilMask!==stencilMask&&!locked){gl.stencilMask(stencilMask);currentStencilMask=stencilMask;}},setFunc:function setFunc(stencilFunc,stencilRef,stencilMask){if(currentStencilFunc!==stencilFunc||currentStencilRef!==stencilRef||currentStencilFuncMask!==stencilMask){gl.stencilFunc(stencilFunc,stencilRef,stencilMask);currentStencilFunc=stencilFunc;currentStencilRef=stencilRef;currentStencilFuncMask=stencilMask;}},setOp:function setOp(stencilFail,stencilZFail,stencilZPass){if(currentStencilFail!==stencilFail||currentStencilZFail!==stencilZFail||currentStencilZPass!==stencilZPass){gl.stencilOp(stencilFail,stencilZFail,stencilZPass);currentStencilFail=stencilFail;currentStencilZFail=stencilZFail;currentStencilZPass=stencilZPass;}},setLocked:function setLocked(lock){locked=lock;},setClear:function setClear(stencil){if(currentStencilClear!==stencil){gl.clearStencil(stencil);currentStencilClear=stencil;}},reset:function reset(){locked=false;currentStencilMask=null;currentStencilFunc=null;currentStencilRef=null;currentStencilFuncMask=null;currentStencilFail=null;currentStencilZFail=null;currentStencilZPass=null;currentStencilClear=null;}};}//
var colorBuffer=new ColorBuffer();var depthBuffer=new DepthBuffer();var stencilBuffer=new StencilBuffer();var enabledCapabilities={};var currentProgram=null;var currentBlendingEnabled=null;var currentBlending=null;var currentBlendEquation=null;var currentBlendSrc=null;var currentBlendDst=null;var currentBlendEquationAlpha=null;var currentBlendSrcAlpha=null;var currentBlendDstAlpha=null;var currentPremultipledAlpha=false;var currentFlipSided=null;var currentCullFace=null;var currentLineWidth=null;var currentPolygonOffsetFactor=null;var currentPolygonOffsetUnits=null;var maxTextures=gl.getParameter(35661);var lineWidthAvailable=false;var version=0;var glVersion=gl.getParameter(7938);if(glVersion.indexOf('WebGL')!==-1){version=parseFloat(/^WebGL (\d)/.exec(glVersion)[1]);lineWidthAvailable=version>=1.0;}else if(glVersion.indexOf('OpenGL ES')!==-1){version=parseFloat(/^OpenGL ES (\d)/.exec(glVersion)[1]);lineWidthAvailable=version>=2.0;}var currentTextureSlot=null;var currentBoundTextures={};var currentScissor=new Vector4();var currentViewport=new Vector4();function createTexture(type,target,count){var data=new Uint8Array(4);// 4 is required to match default unpack alignment of 4.
var texture=gl.createTexture();gl.bindTexture(type,texture);gl.texParameteri(type,10241,9728);gl.texParameteri(type,10240,9728);for(var _i104=0;_i104<count;_i104++){gl.texImage2D(target+_i104,0,6408,1,1,0,6408,5121,data);}return texture;}var emptyTextures={};emptyTextures[3553]=createTexture(3553,3553,1);emptyTextures[34067]=createTexture(34067,34069,6);// init
colorBuffer.setClear(0,0,0,1);depthBuffer.setClear(1);stencilBuffer.setClear(0);enable(2929);depthBuffer.setFunc(LessEqualDepth);setFlipSided(false);setCullFace(CullFaceBack);enable(2884);setBlending(NoBlending);//
function enable(id){if(enabledCapabilities[id]!==true){gl.enable(id);enabledCapabilities[id]=true;}}function disable(id){if(enabledCapabilities[id]!==false){gl.disable(id);enabledCapabilities[id]=false;}}function useProgram(program){if(currentProgram!==program){gl.useProgram(program);currentProgram=program;return true;}return false;}var equationToGL={[AddEquation]:32774,[SubtractEquation]:32778,[ReverseSubtractEquation]:32779};if(isWebGL2){equationToGL[MinEquation]=32775;equationToGL[MaxEquation]=32776;}else {var extension=extensions.get('EXT_blend_minmax');if(extension!==null){equationToGL[MinEquation]=extension.MIN_EXT;equationToGL[MaxEquation]=extension.MAX_EXT;}}var factorToGL={[ZeroFactor]:0,[OneFactor]:1,[SrcColorFactor]:768,[SrcAlphaFactor]:770,[SrcAlphaSaturateFactor]:776,[DstColorFactor]:774,[DstAlphaFactor]:772,[OneMinusSrcColorFactor]:769,[OneMinusSrcAlphaFactor]:771,[OneMinusDstColorFactor]:775,[OneMinusDstAlphaFactor]:773};function setBlending(blending,blendEquation,blendSrc,blendDst,blendEquationAlpha,blendSrcAlpha,blendDstAlpha,premultipliedAlpha){if(blending===NoBlending){if(currentBlendingEnabled){disable(3042);currentBlendingEnabled=false;}return;}if(!currentBlendingEnabled){enable(3042);currentBlendingEnabled=true;}if(blending!==CustomBlending){if(blending!==currentBlending||premultipliedAlpha!==currentPremultipledAlpha){if(currentBlendEquation!==AddEquation||currentBlendEquationAlpha!==AddEquation){gl.blendEquation(32774);currentBlendEquation=AddEquation;currentBlendEquationAlpha=AddEquation;}if(premultipliedAlpha){switch(blending){case NormalBlending:gl.blendFuncSeparate(1,771,1,771);break;case AdditiveBlending:gl.blendFunc(1,1);break;case SubtractiveBlending:gl.blendFuncSeparate(0,0,769,771);break;case MultiplyBlending:gl.blendFuncSeparate(0,768,0,770);break;default:console.error('THREE.WebGLState: Invalid blending: ',blending);break;}}else {switch(blending){case NormalBlending:gl.blendFuncSeparate(770,771,1,771);break;case AdditiveBlending:gl.blendFunc(770,1);break;case SubtractiveBlending:gl.blendFunc(0,769);break;case MultiplyBlending:gl.blendFunc(0,768);break;default:console.error('THREE.WebGLState: Invalid blending: ',blending);break;}}currentBlendSrc=null;currentBlendDst=null;currentBlendSrcAlpha=null;currentBlendDstAlpha=null;currentBlending=blending;currentPremultipledAlpha=premultipliedAlpha;}return;}// custom blending
blendEquationAlpha=blendEquationAlpha||blendEquation;blendSrcAlpha=blendSrcAlpha||blendSrc;blendDstAlpha=blendDstAlpha||blendDst;if(blendEquation!==currentBlendEquation||blendEquationAlpha!==currentBlendEquationAlpha){gl.blendEquationSeparate(equationToGL[blendEquation],equationToGL[blendEquationAlpha]);currentBlendEquation=blendEquation;currentBlendEquationAlpha=blendEquationAlpha;}if(blendSrc!==currentBlendSrc||blendDst!==currentBlendDst||blendSrcAlpha!==currentBlendSrcAlpha||blendDstAlpha!==currentBlendDstAlpha){gl.blendFuncSeparate(factorToGL[blendSrc],factorToGL[blendDst],factorToGL[blendSrcAlpha],factorToGL[blendDstAlpha]);currentBlendSrc=blendSrc;currentBlendDst=blendDst;currentBlendSrcAlpha=blendSrcAlpha;currentBlendDstAlpha=blendDstAlpha;}currentBlending=blending;currentPremultipledAlpha=null;}function setMaterial(material,frontFaceCW){material.side===DoubleSide?disable(2884):enable(2884);var flipSided=material.side===BackSide;if(frontFaceCW)flipSided=!flipSided;setFlipSided(flipSided);material.blending===NormalBlending&&material.transparent===false?setBlending(NoBlending):setBlending(material.blending,material.blendEquation,material.blendSrc,material.blendDst,material.blendEquationAlpha,material.blendSrcAlpha,material.blendDstAlpha,material.premultipliedAlpha);depthBuffer.setFunc(material.depthFunc);depthBuffer.setTest(material.depthTest);depthBuffer.setMask(material.depthWrite);colorBuffer.setMask(material.colorWrite);var stencilWrite=material.stencilWrite;stencilBuffer.setTest(stencilWrite);if(stencilWrite){stencilBuffer.setMask(material.stencilWriteMask);stencilBuffer.setFunc(material.stencilFunc,material.stencilRef,material.stencilFuncMask);stencilBuffer.setOp(material.stencilFail,material.stencilZFail,material.stencilZPass);}setPolygonOffset(material.polygonOffset,material.polygonOffsetFactor,material.polygonOffsetUnits);}//
function setFlipSided(flipSided){if(currentFlipSided!==flipSided){if(flipSided){gl.frontFace(2304);}else {gl.frontFace(2305);}currentFlipSided=flipSided;}}function setCullFace(cullFace){if(cullFace!==CullFaceNone){enable(2884);if(cullFace!==currentCullFace){if(cullFace===CullFaceBack){gl.cullFace(1029);}else if(cullFace===CullFaceFront){gl.cullFace(1028);}else {gl.cullFace(1032);}}}else {disable(2884);}currentCullFace=cullFace;}function setLineWidth(width){if(width!==currentLineWidth){if(lineWidthAvailable)gl.lineWidth(width);currentLineWidth=width;}}function setPolygonOffset(polygonOffset,factor,units){if(polygonOffset){enable(32823);if(currentPolygonOffsetFactor!==factor||currentPolygonOffsetUnits!==units){gl.polygonOffset(factor,units);currentPolygonOffsetFactor=factor;currentPolygonOffsetUnits=units;}}else {disable(32823);}}function setScissorTest(scissorTest){if(scissorTest){enable(3089);}else {disable(3089);}}// texture
function activeTexture(webglSlot){if(webglSlot===undefined)webglSlot=33984+maxTextures-1;if(currentTextureSlot!==webglSlot){gl.activeTexture(webglSlot);currentTextureSlot=webglSlot;}}function bindTexture(webglType,webglTexture){if(currentTextureSlot===null){activeTexture();}var boundTexture=currentBoundTextures[currentTextureSlot];if(boundTexture===undefined){boundTexture={type:undefined,texture:undefined};currentBoundTextures[currentTextureSlot]=boundTexture;}if(boundTexture.type!==webglType||boundTexture.texture!==webglTexture){gl.bindTexture(webglType,webglTexture||emptyTextures[webglType]);boundTexture.type=webglType;boundTexture.texture=webglTexture;}}function unbindTexture(){var boundTexture=currentBoundTextures[currentTextureSlot];if(boundTexture!==undefined&&boundTexture.type!==undefined){gl.bindTexture(boundTexture.type,null);boundTexture.type=undefined;boundTexture.texture=undefined;}}function compressedTexImage2D(){try{gl.compressedTexImage2D.apply(gl,arguments);}catch(error){console.error('THREE.WebGLState:',error);}}function texImage2D(){try{gl.texImage2D.apply(gl,arguments);}catch(error){console.error('THREE.WebGLState:',error);}}function texImage3D(){try{gl.texImage3D.apply(gl,arguments);}catch(error){console.error('THREE.WebGLState:',error);}}//
function scissor(scissor){if(currentScissor.equals(scissor)===false){gl.scissor(scissor.x,scissor.y,scissor.z,scissor.w);currentScissor.copy(scissor);}}function viewport(viewport){if(currentViewport.equals(viewport)===false){gl.viewport(viewport.x,viewport.y,viewport.z,viewport.w);currentViewport.copy(viewport);}}//
function reset(){enabledCapabilities={};currentTextureSlot=null;currentBoundTextures={};currentProgram=null;currentBlendingEnabled=null;currentBlending=null;currentBlendEquation=null;currentBlendSrc=null;currentBlendDst=null;currentBlendEquationAlpha=null;currentBlendSrcAlpha=null;currentBlendDstAlpha=null;currentPremultipledAlpha=false;currentFlipSided=null;currentCullFace=null;currentLineWidth=null;currentPolygonOffsetFactor=null;currentPolygonOffsetUnits=null;colorBuffer.reset();depthBuffer.reset();stencilBuffer.reset();}return {buffers:{color:colorBuffer,depth:depthBuffer,stencil:stencilBuffer},enable:enable,disable:disable,useProgram:useProgram,setBlending:setBlending,setMaterial:setMaterial,setFlipSided:setFlipSided,setCullFace:setCullFace,setLineWidth:setLineWidth,setPolygonOffset:setPolygonOffset,setScissorTest:setScissorTest,activeTexture:activeTexture,bindTexture:bindTexture,unbindTexture:unbindTexture,compressedTexImage2D:compressedTexImage2D,texImage2D:texImage2D,texImage3D:texImage3D,scissor:scissor,viewport:viewport,reset:reset};}function WebGLTextures(_gl,extensions,state,properties,capabilities,utils,info){var isWebGL2=capabilities.isWebGL2;var maxTextures=capabilities.maxTextures;var maxCubemapSize=capabilities.maxCubemapSize;var maxTextureSize=capabilities.maxTextureSize;var maxSamples=capabilities.maxSamples;var _videoTextures=new WeakMap();var _canvas;// cordova iOS (as of 5.0) still uses UIWebView, which provides OffscreenCanvas,
// also OffscreenCanvas.getContext("webgl"), but not OffscreenCanvas.getContext("2d")!
// Some implementations may only implement OffscreenCanvas partially (e.g. lacking 2d).
var useOffscreenCanvas=false;try{useOffscreenCanvas=typeof OffscreenCanvas!=='undefined'&&new OffscreenCanvas(1,1).getContext('2d')!==null;}catch(err){// Ignore any errors
}function createCanvas(width,height){// Use OffscreenCanvas when available. Specially needed in web workers
return useOffscreenCanvas?new OffscreenCanvas(width,height):document.createElementNS('http://www.w3.org/1999/xhtml','canvas');}function resizeImage(image,needsPowerOfTwo,needsNewCanvas,maxSize){var scale=1;// handle case if texture exceeds max size
if(image.width>maxSize||image.height>maxSize){scale=maxSize/Math.max(image.width,image.height);}// only perform resize if necessary
if(scale<1||needsPowerOfTwo===true){// only perform resize for certain image types
if(typeof HTMLImageElement!=='undefined'&&image instanceof HTMLImageElement||typeof HTMLCanvasElement!=='undefined'&&image instanceof HTMLCanvasElement||typeof ImageBitmap!=='undefined'&&image instanceof ImageBitmap){var floor=needsPowerOfTwo?MathUtils.floorPowerOfTwo:Math.floor;var width=floor(scale*image.width);var height=floor(scale*image.height);if(_canvas===undefined)_canvas=createCanvas(width,height);// cube textures can't reuse the same canvas
var canvas=needsNewCanvas?createCanvas(width,height):_canvas;canvas.width=width;canvas.height=height;var context=canvas.getContext('2d');context.drawImage(image,0,0,width,height);console.warn('THREE.WebGLRenderer: Texture has been resized from ('+image.width+'x'+image.height+') to ('+width+'x'+height+').');return canvas;}else {if('data'in image){console.warn('THREE.WebGLRenderer: Image in DataTexture is too big ('+image.width+'x'+image.height+').');}return image;}}return image;}function isPowerOfTwo(image){return MathUtils.isPowerOfTwo(image.width)&&MathUtils.isPowerOfTwo(image.height);}function textureNeedsPowerOfTwo(texture){if(isWebGL2)return false;return texture.wrapS!==ClampToEdgeWrapping||texture.wrapT!==ClampToEdgeWrapping||texture.minFilter!==NearestFilter&&texture.minFilter!==LinearFilter;}function textureNeedsGenerateMipmaps(texture,supportsMips){return texture.generateMipmaps&&supportsMips&&texture.minFilter!==NearestFilter&&texture.minFilter!==LinearFilter;}function generateMipmap(target,texture,width,height){_gl.generateMipmap(target);var textureProperties=properties.get(texture);// Note: Math.log( x ) * Math.LOG2E used instead of Math.log2( x ) which is not supported by IE11
textureProperties.__maxMipLevel=Math.log(Math.max(width,height))*Math.LOG2E;}function getInternalFormat(internalFormatName,glFormat,glType){if(isWebGL2===false)return glFormat;if(internalFormatName!==null){if(_gl[internalFormatName]!==undefined)return _gl[internalFormatName];console.warn('THREE.WebGLRenderer: Attempt to use non-existing WebGL internal format \''+internalFormatName+'\'');}var internalFormat=glFormat;if(glFormat===6403){if(glType===5126)internalFormat=33326;if(glType===5131)internalFormat=33325;if(glType===5121)internalFormat=33321;}if(glFormat===6407){if(glType===5126)internalFormat=34837;if(glType===5131)internalFormat=34843;if(glType===5121)internalFormat=32849;}if(glFormat===6408){if(glType===5126)internalFormat=34836;if(glType===5131)internalFormat=34842;if(glType===5121)internalFormat=32856;}if(internalFormat===33325||internalFormat===33326||internalFormat===34842||internalFormat===34836){extensions.get('EXT_color_buffer_float');}return internalFormat;}// Fallback filters for non-power-of-2 textures
function filterFallback(f){if(f===NearestFilter||f===NearestMipmapNearestFilter||f===NearestMipmapLinearFilter){return 9728;}return 9729;}//
function onTextureDispose(event){var texture=event.target;texture.removeEventListener('dispose',onTextureDispose);deallocateTexture(texture);if(texture.isVideoTexture){_videoTextures.delete(texture);}info.memory.textures--;}function onRenderTargetDispose(event){var renderTarget=event.target;renderTarget.removeEventListener('dispose',onRenderTargetDispose);deallocateRenderTarget(renderTarget);info.memory.textures--;}//
function deallocateTexture(texture){var textureProperties=properties.get(texture);if(textureProperties.__webglInit===undefined)return;_gl.deleteTexture(textureProperties.__webglTexture);properties.remove(texture);}function deallocateRenderTarget(renderTarget){var renderTargetProperties=properties.get(renderTarget);var textureProperties=properties.get(renderTarget.texture);if(!renderTarget)return;if(textureProperties.__webglTexture!==undefined){_gl.deleteTexture(textureProperties.__webglTexture);}if(renderTarget.depthTexture){renderTarget.depthTexture.dispose();}if(renderTarget.isWebGLCubeRenderTarget){for(var _i105=0;_i105<6;_i105++){_gl.deleteFramebuffer(renderTargetProperties.__webglFramebuffer[_i105]);if(renderTargetProperties.__webglDepthbuffer)_gl.deleteRenderbuffer(renderTargetProperties.__webglDepthbuffer[_i105]);}}else {_gl.deleteFramebuffer(renderTargetProperties.__webglFramebuffer);if(renderTargetProperties.__webglDepthbuffer)_gl.deleteRenderbuffer(renderTargetProperties.__webglDepthbuffer);if(renderTargetProperties.__webglMultisampledFramebuffer)_gl.deleteFramebuffer(renderTargetProperties.__webglMultisampledFramebuffer);if(renderTargetProperties.__webglColorRenderbuffer)_gl.deleteRenderbuffer(renderTargetProperties.__webglColorRenderbuffer);if(renderTargetProperties.__webglDepthRenderbuffer)_gl.deleteRenderbuffer(renderTargetProperties.__webglDepthRenderbuffer);}properties.remove(renderTarget.texture);properties.remove(renderTarget);}//
var textureUnits=0;function resetTextureUnits(){textureUnits=0;}function allocateTextureUnit(){var textureUnit=textureUnits;if(textureUnit>=maxTextures){console.warn('THREE.WebGLTextures: Trying to use '+textureUnit+' texture units while this GPU supports only '+maxTextures);}textureUnits+=1;return textureUnit;}//
function setTexture2D(texture,slot){var textureProperties=properties.get(texture);if(texture.isVideoTexture)updateVideoTexture(texture);if(texture.version>0&&textureProperties.__version!==texture.version){var image=texture.image;if(image===undefined){console.warn('THREE.WebGLRenderer: Texture marked for update but image is undefined');}else if(image.complete===false){console.warn('THREE.WebGLRenderer: Texture marked for update but image is incomplete');}else {uploadTexture(textureProperties,texture,slot);return;}}state.activeTexture(33984+slot);state.bindTexture(3553,textureProperties.__webglTexture);}function setTexture2DArray(texture,slot){var textureProperties=properties.get(texture);if(texture.version>0&&textureProperties.__version!==texture.version){uploadTexture(textureProperties,texture,slot);return;}state.activeTexture(33984+slot);state.bindTexture(35866,textureProperties.__webglTexture);}function setTexture3D(texture,slot){var textureProperties=properties.get(texture);if(texture.version>0&&textureProperties.__version!==texture.version){uploadTexture(textureProperties,texture,slot);return;}state.activeTexture(33984+slot);state.bindTexture(32879,textureProperties.__webglTexture);}function setTextureCube(texture,slot){var textureProperties=properties.get(texture);if(texture.version>0&&textureProperties.__version!==texture.version){uploadCubeTexture(textureProperties,texture,slot);return;}state.activeTexture(33984+slot);state.bindTexture(34067,textureProperties.__webglTexture);}var wrappingToGL={[RepeatWrapping]:10497,[ClampToEdgeWrapping]:33071,[MirroredRepeatWrapping]:33648};var filterToGL={[NearestFilter]:9728,[NearestMipmapNearestFilter]:9984,[NearestMipmapLinearFilter]:9986,[LinearFilter]:9729,[LinearMipmapNearestFilter]:9985,[LinearMipmapLinearFilter]:9987};function setTextureParameters(textureType,texture,supportsMips){if(supportsMips){_gl.texParameteri(textureType,10242,wrappingToGL[texture.wrapS]);_gl.texParameteri(textureType,10243,wrappingToGL[texture.wrapT]);if(textureType===32879||textureType===35866){_gl.texParameteri(textureType,32882,wrappingToGL[texture.wrapR]);}_gl.texParameteri(textureType,10240,filterToGL[texture.magFilter]);_gl.texParameteri(textureType,10241,filterToGL[texture.minFilter]);}else {_gl.texParameteri(textureType,10242,33071);_gl.texParameteri(textureType,10243,33071);if(textureType===32879||textureType===35866){_gl.texParameteri(textureType,32882,33071);}if(texture.wrapS!==ClampToEdgeWrapping||texture.wrapT!==ClampToEdgeWrapping){console.warn('THREE.WebGLRenderer: Texture is not power of two. Texture.wrapS and Texture.wrapT should be set to THREE.ClampToEdgeWrapping.');}_gl.texParameteri(textureType,10240,filterFallback(texture.magFilter));_gl.texParameteri(textureType,10241,filterFallback(texture.minFilter));if(texture.minFilter!==NearestFilter&&texture.minFilter!==LinearFilter){console.warn('THREE.WebGLRenderer: Texture is not power of two. Texture.minFilter should be set to THREE.NearestFilter or THREE.LinearFilter.');}}var extension=extensions.get('EXT_texture_filter_anisotropic');if(extension){if(texture.type===FloatType&&extensions.get('OES_texture_float_linear')===null)return;if(texture.type===HalfFloatType&&(isWebGL2||extensions.get('OES_texture_half_float_linear'))===null)return;if(texture.anisotropy>1||properties.get(texture).__currentAnisotropy){_gl.texParameterf(textureType,extension.TEXTURE_MAX_ANISOTROPY_EXT,Math.min(texture.anisotropy,capabilities.getMaxAnisotropy()));properties.get(texture).__currentAnisotropy=texture.anisotropy;}}}function initTexture(textureProperties,texture){if(textureProperties.__webglInit===undefined){textureProperties.__webglInit=true;texture.addEventListener('dispose',onTextureDispose);textureProperties.__webglTexture=_gl.createTexture();info.memory.textures++;}}function uploadTexture(textureProperties,texture,slot){var textureType=3553;if(texture.isDataTexture2DArray)textureType=35866;if(texture.isDataTexture3D)textureType=32879;initTexture(textureProperties,texture);state.activeTexture(33984+slot);state.bindTexture(textureType,textureProperties.__webglTexture);_gl.pixelStorei(37440,texture.flipY);_gl.pixelStorei(37441,texture.premultiplyAlpha);_gl.pixelStorei(3317,texture.unpackAlignment);var needsPowerOfTwo=textureNeedsPowerOfTwo(texture)&&isPowerOfTwo(texture.image)===false;var image=resizeImage(texture.image,needsPowerOfTwo,false,maxTextureSize);var supportsMips=isPowerOfTwo(image)||isWebGL2,glFormat=utils.convert(texture.format);var glType=utils.convert(texture.type),glInternalFormat=getInternalFormat(texture.internalFormat,glFormat,glType);setTextureParameters(textureType,texture,supportsMips);var mipmap;var mipmaps=texture.mipmaps;if(texture.isDepthTexture){// populate depth texture with dummy data
glInternalFormat=6402;if(isWebGL2){if(texture.type===FloatType){glInternalFormat=36012;}else if(texture.type===UnsignedIntType){glInternalFormat=33190;}else if(texture.type===UnsignedInt248Type){glInternalFormat=35056;}else {glInternalFormat=33189;// WebGL2 requires sized internalformat for glTexImage2D
}}else {if(texture.type===FloatType){console.error('WebGLRenderer: Floating point depth texture requires WebGL2.');}}// validation checks for WebGL 1
if(texture.format===DepthFormat&&glInternalFormat===6402){// The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
// DEPTH_COMPONENT and type is not UNSIGNED_SHORT or UNSIGNED_INT
// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
if(texture.type!==UnsignedShortType&&texture.type!==UnsignedIntType){console.warn('THREE.WebGLRenderer: Use UnsignedShortType or UnsignedIntType for DepthFormat DepthTexture.');texture.type=UnsignedShortType;glType=utils.convert(texture.type);}}if(texture.format===DepthStencilFormat&&glInternalFormat===6402){// Depth stencil textures need the DEPTH_STENCIL internal format
// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
glInternalFormat=34041;// The error INVALID_OPERATION is generated by texImage2D if format and internalformat are
// DEPTH_STENCIL and type is not UNSIGNED_INT_24_8_WEBGL.
// (https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/)
if(texture.type!==UnsignedInt248Type){console.warn('THREE.WebGLRenderer: Use UnsignedInt248Type for DepthStencilFormat DepthTexture.');texture.type=UnsignedInt248Type;glType=utils.convert(texture.type);}}//
state.texImage2D(3553,0,glInternalFormat,image.width,image.height,0,glFormat,glType,null);}else if(texture.isDataTexture){// use manually created mipmaps if available
// if there are no manual mipmaps
// set 0 level mipmap and then use GL to generate other mipmap levels
if(mipmaps.length>0&&supportsMips){for(var _i106=0,il=mipmaps.length;_i106<il;_i106++){mipmap=mipmaps[_i106];state.texImage2D(3553,_i106,glInternalFormat,mipmap.width,mipmap.height,0,glFormat,glType,mipmap.data);}texture.generateMipmaps=false;textureProperties.__maxMipLevel=mipmaps.length-1;}else {state.texImage2D(3553,0,glInternalFormat,image.width,image.height,0,glFormat,glType,image.data);textureProperties.__maxMipLevel=0;}}else if(texture.isCompressedTexture){for(var _i107=0,_il9=mipmaps.length;_i107<_il9;_i107++){mipmap=mipmaps[_i107];if(texture.format!==RGBAFormat&&texture.format!==RGBFormat){if(glFormat!==null){state.compressedTexImage2D(3553,_i107,glInternalFormat,mipmap.width,mipmap.height,0,mipmap.data);}else {console.warn('THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .uploadTexture()');}}else {state.texImage2D(3553,_i107,glInternalFormat,mipmap.width,mipmap.height,0,glFormat,glType,mipmap.data);}}textureProperties.__maxMipLevel=mipmaps.length-1;}else if(texture.isDataTexture2DArray){state.texImage3D(35866,0,glInternalFormat,image.width,image.height,image.depth,0,glFormat,glType,image.data);textureProperties.__maxMipLevel=0;}else if(texture.isDataTexture3D){state.texImage3D(32879,0,glInternalFormat,image.width,image.height,image.depth,0,glFormat,glType,image.data);textureProperties.__maxMipLevel=0;}else {// regular Texture (image, video, canvas)
// use manually created mipmaps if available
// if there are no manual mipmaps
// set 0 level mipmap and then use GL to generate other mipmap levels
if(mipmaps.length>0&&supportsMips){for(var _i108=0,_il10=mipmaps.length;_i108<_il10;_i108++){mipmap=mipmaps[_i108];state.texImage2D(3553,_i108,glInternalFormat,glFormat,glType,mipmap);}texture.generateMipmaps=false;textureProperties.__maxMipLevel=mipmaps.length-1;}else {state.texImage2D(3553,0,glInternalFormat,glFormat,glType,image);textureProperties.__maxMipLevel=0;}}if(textureNeedsGenerateMipmaps(texture,supportsMips)){generateMipmap(textureType,texture,image.width,image.height);}textureProperties.__version=texture.version;if(texture.onUpdate)texture.onUpdate(texture);}function uploadCubeTexture(textureProperties,texture,slot){if(texture.image.length!==6)return;initTexture(textureProperties,texture);state.activeTexture(33984+slot);state.bindTexture(34067,textureProperties.__webglTexture);_gl.pixelStorei(37440,texture.flipY);var isCompressed=texture&&(texture.isCompressedTexture||texture.image[0].isCompressedTexture);var isDataTexture=texture.image[0]&&texture.image[0].isDataTexture;var cubeImage=[];for(var _i109=0;_i109<6;_i109++){if(!isCompressed&&!isDataTexture){cubeImage[_i109]=resizeImage(texture.image[_i109],false,true,maxCubemapSize);}else {cubeImage[_i109]=isDataTexture?texture.image[_i109].image:texture.image[_i109];}}var image=cubeImage[0],supportsMips=isPowerOfTwo(image)||isWebGL2,glFormat=utils.convert(texture.format),glType=utils.convert(texture.type),glInternalFormat=getInternalFormat(texture.internalFormat,glFormat,glType);setTextureParameters(34067,texture,supportsMips);var mipmaps;if(isCompressed){for(var _i110=0;_i110<6;_i110++){mipmaps=cubeImage[_i110].mipmaps;for(var j=0;j<mipmaps.length;j++){var mipmap=mipmaps[j];if(texture.format!==RGBAFormat&&texture.format!==RGBFormat){if(glFormat!==null){state.compressedTexImage2D(34069+_i110,j,glInternalFormat,mipmap.width,mipmap.height,0,mipmap.data);}else {console.warn('THREE.WebGLRenderer: Attempt to load unsupported compressed texture format in .setTextureCube()');}}else {state.texImage2D(34069+_i110,j,glInternalFormat,mipmap.width,mipmap.height,0,glFormat,glType,mipmap.data);}}}textureProperties.__maxMipLevel=mipmaps.length-1;}else {mipmaps=texture.mipmaps;for(var _i111=0;_i111<6;_i111++){if(isDataTexture){state.texImage2D(34069+_i111,0,glInternalFormat,cubeImage[_i111].width,cubeImage[_i111].height,0,glFormat,glType,cubeImage[_i111].data);for(var _j3=0;_j3<mipmaps.length;_j3++){var _mipmap=mipmaps[_j3];var mipmapImage=_mipmap.image[_i111].image;state.texImage2D(34069+_i111,_j3+1,glInternalFormat,mipmapImage.width,mipmapImage.height,0,glFormat,glType,mipmapImage.data);}}else {state.texImage2D(34069+_i111,0,glInternalFormat,glFormat,glType,cubeImage[_i111]);for(var _j4=0;_j4<mipmaps.length;_j4++){var _mipmap2=mipmaps[_j4];state.texImage2D(34069+_i111,_j4+1,glInternalFormat,glFormat,glType,_mipmap2.image[_i111]);}}}textureProperties.__maxMipLevel=mipmaps.length;}if(textureNeedsGenerateMipmaps(texture,supportsMips)){// We assume images for cube map have the same size.
generateMipmap(34067,texture,image.width,image.height);}textureProperties.__version=texture.version;if(texture.onUpdate)texture.onUpdate(texture);}// Render targets
// Setup storage for target texture and bind it to correct framebuffer
function setupFrameBufferTexture(framebuffer,renderTarget,attachment,textureTarget){var glFormat=utils.convert(renderTarget.texture.format);var glType=utils.convert(renderTarget.texture.type);var glInternalFormat=getInternalFormat(renderTarget.texture.internalFormat,glFormat,glType);state.texImage2D(textureTarget,0,glInternalFormat,renderTarget.width,renderTarget.height,0,glFormat,glType,null);_gl.bindFramebuffer(36160,framebuffer);_gl.framebufferTexture2D(36160,attachment,textureTarget,properties.get(renderTarget.texture).__webglTexture,0);_gl.bindFramebuffer(36160,null);}// Setup storage for internal depth/stencil buffers and bind to correct framebuffer
function setupRenderBufferStorage(renderbuffer,renderTarget,isMultisample){_gl.bindRenderbuffer(36161,renderbuffer);if(renderTarget.depthBuffer&&!renderTarget.stencilBuffer){var glInternalFormat=33189;if(isMultisample){var depthTexture=renderTarget.depthTexture;if(depthTexture&&depthTexture.isDepthTexture){if(depthTexture.type===FloatType){glInternalFormat=36012;}else if(depthTexture.type===UnsignedIntType){glInternalFormat=33190;}}var samples=getRenderTargetSamples(renderTarget);_gl.renderbufferStorageMultisample(36161,samples,glInternalFormat,renderTarget.width,renderTarget.height);}else {_gl.renderbufferStorage(36161,glInternalFormat,renderTarget.width,renderTarget.height);}_gl.framebufferRenderbuffer(36160,36096,36161,renderbuffer);}else if(renderTarget.depthBuffer&&renderTarget.stencilBuffer){if(isMultisample){var _samples=getRenderTargetSamples(renderTarget);_gl.renderbufferStorageMultisample(36161,_samples,35056,renderTarget.width,renderTarget.height);}else {_gl.renderbufferStorage(36161,34041,renderTarget.width,renderTarget.height);}_gl.framebufferRenderbuffer(36160,33306,36161,renderbuffer);}else {var glFormat=utils.convert(renderTarget.texture.format);var glType=utils.convert(renderTarget.texture.type);var _glInternalFormat=getInternalFormat(renderTarget.texture.internalFormat,glFormat,glType);if(isMultisample){var _samples2=getRenderTargetSamples(renderTarget);_gl.renderbufferStorageMultisample(36161,_samples2,_glInternalFormat,renderTarget.width,renderTarget.height);}else {_gl.renderbufferStorage(36161,_glInternalFormat,renderTarget.width,renderTarget.height);}}_gl.bindRenderbuffer(36161,null);}// Setup resources for a Depth Texture for a FBO (needs an extension)
function setupDepthTexture(framebuffer,renderTarget){var isCube=renderTarget&&renderTarget.isWebGLCubeRenderTarget;if(isCube)throw new Error('Depth Texture with cube render targets is not supported');_gl.bindFramebuffer(36160,framebuffer);if(!(renderTarget.depthTexture&&renderTarget.depthTexture.isDepthTexture)){throw new Error('renderTarget.depthTexture must be an instance of THREE.DepthTexture');}// upload an empty depth texture with framebuffer size
if(!properties.get(renderTarget.depthTexture).__webglTexture||renderTarget.depthTexture.image.width!==renderTarget.width||renderTarget.depthTexture.image.height!==renderTarget.height){renderTarget.depthTexture.image.width=renderTarget.width;renderTarget.depthTexture.image.height=renderTarget.height;renderTarget.depthTexture.needsUpdate=true;}setTexture2D(renderTarget.depthTexture,0);var webglDepthTexture=properties.get(renderTarget.depthTexture).__webglTexture;if(renderTarget.depthTexture.format===DepthFormat){_gl.framebufferTexture2D(36160,36096,3553,webglDepthTexture,0);}else if(renderTarget.depthTexture.format===DepthStencilFormat){_gl.framebufferTexture2D(36160,33306,3553,webglDepthTexture,0);}else {throw new Error('Unknown depthTexture format');}}// Setup GL resources for a non-texture depth buffer
function setupDepthRenderbuffer(renderTarget){var renderTargetProperties=properties.get(renderTarget);var isCube=renderTarget.isWebGLCubeRenderTarget===true;if(renderTarget.depthTexture){if(isCube)throw new Error('target.depthTexture not supported in Cube render targets');setupDepthTexture(renderTargetProperties.__webglFramebuffer,renderTarget);}else {if(isCube){renderTargetProperties.__webglDepthbuffer=[];for(var _i112=0;_i112<6;_i112++){_gl.bindFramebuffer(36160,renderTargetProperties.__webglFramebuffer[_i112]);renderTargetProperties.__webglDepthbuffer[_i112]=_gl.createRenderbuffer();setupRenderBufferStorage(renderTargetProperties.__webglDepthbuffer[_i112],renderTarget,false);}}else {_gl.bindFramebuffer(36160,renderTargetProperties.__webglFramebuffer);renderTargetProperties.__webglDepthbuffer=_gl.createRenderbuffer();setupRenderBufferStorage(renderTargetProperties.__webglDepthbuffer,renderTarget,false);}}_gl.bindFramebuffer(36160,null);}// Set up GL resources for the render target
function setupRenderTarget(renderTarget){var renderTargetProperties=properties.get(renderTarget);var textureProperties=properties.get(renderTarget.texture);renderTarget.addEventListener('dispose',onRenderTargetDispose);textureProperties.__webglTexture=_gl.createTexture();info.memory.textures++;var isCube=renderTarget.isWebGLCubeRenderTarget===true;var isMultisample=renderTarget.isWebGLMultisampleRenderTarget===true;var supportsMips=isPowerOfTwo(renderTarget)||isWebGL2;// Handles WebGL2 RGBFormat fallback - #18858
if(isWebGL2&&renderTarget.texture.format===RGBFormat&&(renderTarget.texture.type===FloatType||renderTarget.texture.type===HalfFloatType)){renderTarget.texture.format=RGBAFormat;console.warn('THREE.WebGLRenderer: Rendering to textures with RGB format is not supported. Using RGBA format instead.');}// Setup framebuffer
if(isCube){renderTargetProperties.__webglFramebuffer=[];for(var _i113=0;_i113<6;_i113++){renderTargetProperties.__webglFramebuffer[_i113]=_gl.createFramebuffer();}}else {renderTargetProperties.__webglFramebuffer=_gl.createFramebuffer();if(isMultisample){if(isWebGL2){renderTargetProperties.__webglMultisampledFramebuffer=_gl.createFramebuffer();renderTargetProperties.__webglColorRenderbuffer=_gl.createRenderbuffer();_gl.bindRenderbuffer(36161,renderTargetProperties.__webglColorRenderbuffer);var glFormat=utils.convert(renderTarget.texture.format);var glType=utils.convert(renderTarget.texture.type);var glInternalFormat=getInternalFormat(renderTarget.texture.internalFormat,glFormat,glType);var samples=getRenderTargetSamples(renderTarget);_gl.renderbufferStorageMultisample(36161,samples,glInternalFormat,renderTarget.width,renderTarget.height);_gl.bindFramebuffer(36160,renderTargetProperties.__webglMultisampledFramebuffer);_gl.framebufferRenderbuffer(36160,36064,36161,renderTargetProperties.__webglColorRenderbuffer);_gl.bindRenderbuffer(36161,null);if(renderTarget.depthBuffer){renderTargetProperties.__webglDepthRenderbuffer=_gl.createRenderbuffer();setupRenderBufferStorage(renderTargetProperties.__webglDepthRenderbuffer,renderTarget,true);}_gl.bindFramebuffer(36160,null);}else {console.warn('THREE.WebGLRenderer: WebGLMultisampleRenderTarget can only be used with WebGL2.');}}}// Setup color buffer
if(isCube){state.bindTexture(34067,textureProperties.__webglTexture);setTextureParameters(34067,renderTarget.texture,supportsMips);for(var _i114=0;_i114<6;_i114++){setupFrameBufferTexture(renderTargetProperties.__webglFramebuffer[_i114],renderTarget,36064,34069+_i114);}if(textureNeedsGenerateMipmaps(renderTarget.texture,supportsMips)){generateMipmap(34067,renderTarget.texture,renderTarget.width,renderTarget.height);}state.bindTexture(34067,null);}else {state.bindTexture(3553,textureProperties.__webglTexture);setTextureParameters(3553,renderTarget.texture,supportsMips);setupFrameBufferTexture(renderTargetProperties.__webglFramebuffer,renderTarget,36064,3553);if(textureNeedsGenerateMipmaps(renderTarget.texture,supportsMips)){generateMipmap(3553,renderTarget.texture,renderTarget.width,renderTarget.height);}state.bindTexture(3553,null);}// Setup depth and stencil buffers
if(renderTarget.depthBuffer){setupDepthRenderbuffer(renderTarget);}}function updateRenderTargetMipmap(renderTarget){var texture=renderTarget.texture;var supportsMips=isPowerOfTwo(renderTarget)||isWebGL2;if(textureNeedsGenerateMipmaps(texture,supportsMips)){var target=renderTarget.isWebGLCubeRenderTarget?34067:3553;var webglTexture=properties.get(texture).__webglTexture;state.bindTexture(target,webglTexture);generateMipmap(target,texture,renderTarget.width,renderTarget.height);state.bindTexture(target,null);}}function updateMultisampleRenderTarget(renderTarget){if(renderTarget.isWebGLMultisampleRenderTarget){if(isWebGL2){var renderTargetProperties=properties.get(renderTarget);_gl.bindFramebuffer(36008,renderTargetProperties.__webglMultisampledFramebuffer);_gl.bindFramebuffer(36009,renderTargetProperties.__webglFramebuffer);var width=renderTarget.width;var height=renderTarget.height;var mask=16384;if(renderTarget.depthBuffer)mask|=256;if(renderTarget.stencilBuffer)mask|=1024;_gl.blitFramebuffer(0,0,width,height,0,0,width,height,mask,9728);_gl.bindFramebuffer(36160,renderTargetProperties.__webglMultisampledFramebuffer);// see #18905
}else {console.warn('THREE.WebGLRenderer: WebGLMultisampleRenderTarget can only be used with WebGL2.');}}}function getRenderTargetSamples(renderTarget){return isWebGL2&&renderTarget.isWebGLMultisampleRenderTarget?Math.min(maxSamples,renderTarget.samples):0;}function updateVideoTexture(texture){var frame=info.render.frame;// Check the last frame we updated the VideoTexture
if(_videoTextures.get(texture)!==frame){_videoTextures.set(texture,frame);texture.update();}}// backwards compatibility
var warnedTexture2D=false;var warnedTextureCube=false;function safeSetTexture2D(texture,slot){if(texture&&texture.isWebGLRenderTarget){if(warnedTexture2D===false){console.warn('THREE.WebGLTextures.safeSetTexture2D: don\'t use render targets as textures. Use their .texture property instead.');warnedTexture2D=true;}texture=texture.texture;}setTexture2D(texture,slot);}function safeSetTextureCube(texture,slot){if(texture&&texture.isWebGLCubeRenderTarget){if(warnedTextureCube===false){console.warn('THREE.WebGLTextures.safeSetTextureCube: don\'t use cube render targets as textures. Use their .texture property instead.');warnedTextureCube=true;}texture=texture.texture;}setTextureCube(texture,slot);}//
this.allocateTextureUnit=allocateTextureUnit;this.resetTextureUnits=resetTextureUnits;this.setTexture2D=setTexture2D;this.setTexture2DArray=setTexture2DArray;this.setTexture3D=setTexture3D;this.setTextureCube=setTextureCube;this.setupRenderTarget=setupRenderTarget;this.updateRenderTargetMipmap=updateRenderTargetMipmap;this.updateMultisampleRenderTarget=updateMultisampleRenderTarget;this.safeSetTexture2D=safeSetTexture2D;this.safeSetTextureCube=safeSetTextureCube;}function WebGLUtils(gl,extensions,capabilities){var isWebGL2=capabilities.isWebGL2;function convert(p){var extension;if(p===UnsignedByteType)return 5121;if(p===UnsignedShort4444Type)return 32819;if(p===UnsignedShort5551Type)return 32820;if(p===UnsignedShort565Type)return 33635;if(p===ByteType)return 5120;if(p===ShortType)return 5122;if(p===UnsignedShortType)return 5123;if(p===IntType)return 5124;if(p===UnsignedIntType)return 5125;if(p===FloatType)return 5126;if(p===HalfFloatType){if(isWebGL2)return 5131;extension=extensions.get('OES_texture_half_float');if(extension!==null){return extension.HALF_FLOAT_OES;}else {return null;}}if(p===AlphaFormat)return 6406;if(p===RGBFormat)return 6407;if(p===RGBAFormat)return 6408;if(p===LuminanceFormat)return 6409;if(p===LuminanceAlphaFormat)return 6410;if(p===DepthFormat)return 6402;if(p===DepthStencilFormat)return 34041;if(p===RedFormat)return 6403;// WebGL2 formats.
if(p===RedIntegerFormat)return 36244;if(p===RGFormat)return 33319;if(p===RGIntegerFormat)return 33320;if(p===RGBIntegerFormat)return 36248;if(p===RGBAIntegerFormat)return 36249;if(p===RGB_S3TC_DXT1_Format||p===RGBA_S3TC_DXT1_Format||p===RGBA_S3TC_DXT3_Format||p===RGBA_S3TC_DXT5_Format){extension=extensions.get('WEBGL_compressed_texture_s3tc');if(extension!==null){if(p===RGB_S3TC_DXT1_Format)return extension.COMPRESSED_RGB_S3TC_DXT1_EXT;if(p===RGBA_S3TC_DXT1_Format)return extension.COMPRESSED_RGBA_S3TC_DXT1_EXT;if(p===RGBA_S3TC_DXT3_Format)return extension.COMPRESSED_RGBA_S3TC_DXT3_EXT;if(p===RGBA_S3TC_DXT5_Format)return extension.COMPRESSED_RGBA_S3TC_DXT5_EXT;}else {return null;}}if(p===RGB_PVRTC_4BPPV1_Format||p===RGB_PVRTC_2BPPV1_Format||p===RGBA_PVRTC_4BPPV1_Format||p===RGBA_PVRTC_2BPPV1_Format){extension=extensions.get('WEBGL_compressed_texture_pvrtc');if(extension!==null){if(p===RGB_PVRTC_4BPPV1_Format)return extension.COMPRESSED_RGB_PVRTC_4BPPV1_IMG;if(p===RGB_PVRTC_2BPPV1_Format)return extension.COMPRESSED_RGB_PVRTC_2BPPV1_IMG;if(p===RGBA_PVRTC_4BPPV1_Format)return extension.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;if(p===RGBA_PVRTC_2BPPV1_Format)return extension.COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;}else {return null;}}if(p===RGB_ETC1_Format){extension=extensions.get('WEBGL_compressed_texture_etc1');if(extension!==null){return extension.COMPRESSED_RGB_ETC1_WEBGL;}else {return null;}}if(p===RGB_ETC2_Format||p===RGBA_ETC2_EAC_Format){extension=extensions.get('WEBGL_compressed_texture_etc');if(extension!==null){if(p===RGB_ETC2_Format)return extension.COMPRESSED_RGB8_ETC2;if(p===RGBA_ETC2_EAC_Format)return extension.COMPRESSED_RGBA8_ETC2_EAC;}}if(p===RGBA_ASTC_4x4_Format||p===RGBA_ASTC_5x4_Format||p===RGBA_ASTC_5x5_Format||p===RGBA_ASTC_6x5_Format||p===RGBA_ASTC_6x6_Format||p===RGBA_ASTC_8x5_Format||p===RGBA_ASTC_8x6_Format||p===RGBA_ASTC_8x8_Format||p===RGBA_ASTC_10x5_Format||p===RGBA_ASTC_10x6_Format||p===RGBA_ASTC_10x8_Format||p===RGBA_ASTC_10x10_Format||p===RGBA_ASTC_12x10_Format||p===RGBA_ASTC_12x12_Format||p===SRGB8_ALPHA8_ASTC_4x4_Format||p===SRGB8_ALPHA8_ASTC_5x4_Format||p===SRGB8_ALPHA8_ASTC_5x5_Format||p===SRGB8_ALPHA8_ASTC_6x5_Format||p===SRGB8_ALPHA8_ASTC_6x6_Format||p===SRGB8_ALPHA8_ASTC_8x5_Format||p===SRGB8_ALPHA8_ASTC_8x6_Format||p===SRGB8_ALPHA8_ASTC_8x8_Format||p===SRGB8_ALPHA8_ASTC_10x5_Format||p===SRGB8_ALPHA8_ASTC_10x6_Format||p===SRGB8_ALPHA8_ASTC_10x8_Format||p===SRGB8_ALPHA8_ASTC_10x10_Format||p===SRGB8_ALPHA8_ASTC_12x10_Format||p===SRGB8_ALPHA8_ASTC_12x12_Format){extension=extensions.get('WEBGL_compressed_texture_astc');if(extension!==null){// TODO Complete?
return p;}else {return null;}}if(p===RGBA_BPTC_Format){extension=extensions.get('EXT_texture_compression_bptc');if(extension!==null){// TODO Complete?
return p;}else {return null;}}if(p===UnsignedInt248Type){if(isWebGL2)return 34042;extension=extensions.get('WEBGL_depth_texture');if(extension!==null){return extension.UNSIGNED_INT_24_8_WEBGL;}else {return null;}}}return {convert:convert};}function ArrayCamera(){var array=arguments.length>0&&arguments[0]!==undefined?arguments[0]:[];PerspectiveCamera.call(this);this.cameras=array;}ArrayCamera.prototype=Object.assign(Object.create(PerspectiveCamera.prototype),{constructor:ArrayCamera,isArrayCamera:true});function Group(){Object3D.call(this);this.type='Group';}Group.prototype=Object.assign(Object.create(Object3D.prototype),{constructor:Group,isGroup:true});function WebXRController(){this._targetRay=null;this._grip=null;this._hand=null;}Object.assign(WebXRController.prototype,{constructor:WebXRController,getHandSpace:function getHandSpace(){if(this._hand===null){this._hand=new Group();this._hand.matrixAutoUpdate=false;this._hand.visible=false;this._hand.joints=[];this._hand.inputState={pinching:false};if(window.XRHand){for(var _i115=0;_i115<=window.XRHand.LITTLE_PHALANX_TIP;_i115++){// The transform of this joint will be updated with the joint pose on each frame
var joint=new Group();joint.matrixAutoUpdate=false;joint.visible=false;this._hand.joints.push(joint);// ??
this._hand.add(joint);}}}return this._hand;},getTargetRaySpace:function getTargetRaySpace(){if(this._targetRay===null){this._targetRay=new Group();this._targetRay.matrixAutoUpdate=false;this._targetRay.visible=false;}return this._targetRay;},getGripSpace:function getGripSpace(){if(this._grip===null){this._grip=new Group();this._grip.matrixAutoUpdate=false;this._grip.visible=false;}return this._grip;},dispatchEvent:function dispatchEvent(event){if(this._targetRay!==null){this._targetRay.dispatchEvent(event);}if(this._grip!==null){this._grip.dispatchEvent(event);}if(this._hand!==null){this._hand.dispatchEvent(event);}return this;},disconnect:function disconnect(inputSource){this.dispatchEvent({type:'disconnected',data:inputSource});if(this._targetRay!==null){this._targetRay.visible=false;}if(this._grip!==null){this._grip.visible=false;}if(this._hand!==null){this._hand.visible=false;}return this;},update:function update(inputSource,frame,referenceSpace){var inputPose=null;var gripPose=null;var handPose=null;var targetRay=this._targetRay;var grip=this._grip;var hand=this._hand;if(inputSource&&frame.session.visibilityState!=='visible-blurred'){if(hand&&inputSource.hand){handPose=true;for(var _i116=0;_i116<=window.XRHand.LITTLE_PHALANX_TIP;_i116++){if(inputSource.hand[_i116]){// Update the joints groups with the XRJoint poses
var jointPose=frame.getJointPose(inputSource.hand[_i116],referenceSpace);var joint=hand.joints[_i116];if(jointPose!==null){joint.matrix.fromArray(jointPose.transform.matrix);joint.matrix.decompose(joint.position,joint.rotation,joint.scale);joint.jointRadius=jointPose.radius;}joint.visible=jointPose!==null;// Custom events
// Check pinch
var indexTip=hand.joints[window.XRHand.INDEX_PHALANX_TIP];var thumbTip=hand.joints[window.XRHand.THUMB_PHALANX_TIP];var distance=indexTip.position.distanceTo(thumbTip.position);var distanceToPinch=0.02;var threshold=0.005;if(hand.inputState.pinching&&distance>distanceToPinch+threshold){hand.inputState.pinching=false;this.dispatchEvent({type:'pinchend',handedness:inputSource.handedness,target:this});}else if(!hand.inputState.pinching&&distance<=distanceToPinch-threshold){hand.inputState.pinching=true;this.dispatchEvent({type:'pinchstart',handedness:inputSource.handedness,target:this});}}}}else {if(targetRay!==null){inputPose=frame.getPose(inputSource.targetRaySpace,referenceSpace);if(inputPose!==null){targetRay.matrix.fromArray(inputPose.transform.matrix);targetRay.matrix.decompose(targetRay.position,targetRay.rotation,targetRay.scale);}}if(grip!==null&&inputSource.gripSpace){gripPose=frame.getPose(inputSource.gripSpace,referenceSpace);if(gripPose!==null){grip.matrix.fromArray(gripPose.transform.matrix);grip.matrix.decompose(grip.position,grip.rotation,grip.scale);}}}}if(targetRay!==null){targetRay.visible=inputPose!==null;}if(grip!==null){grip.visible=gripPose!==null;}if(hand!==null){hand.visible=handPose!==null;}return this;}});function WebXRManager(renderer,gl){var scope=this;var session=null;var framebufferScaleFactor=1.0;var referenceSpace=null;var referenceSpaceType='local-floor';var pose=null;var controllers=[];var inputSourcesMap=new Map();//
var cameraL=new PerspectiveCamera();cameraL.layers.enable(1);cameraL.viewport=new Vector4();var cameraR=new PerspectiveCamera();cameraR.layers.enable(2);cameraR.viewport=new Vector4();var cameras=[cameraL,cameraR];var cameraVR=new ArrayCamera();cameraVR.layers.enable(1);cameraVR.layers.enable(2);var _currentDepthNear=null;var _currentDepthFar=null;//
this.enabled=false;this.isPresenting=false;this.getController=function(index){var controller=controllers[index];if(controller===undefined){controller=new WebXRController();controllers[index]=controller;}return controller.getTargetRaySpace();};this.getControllerGrip=function(index){var controller=controllers[index];if(controller===undefined){controller=new WebXRController();controllers[index]=controller;}return controller.getGripSpace();};this.getHand=function(index){var controller=controllers[index];if(controller===undefined){controller=new WebXRController();controllers[index]=controller;}return controller.getHandSpace();};//
function onSessionEvent(event){var controller=inputSourcesMap.get(event.inputSource);if(controller){controller.dispatchEvent({type:event.type,data:event.inputSource});}}function onSessionEnd(){inputSourcesMap.forEach(function(controller,inputSource){controller.disconnect(inputSource);});inputSourcesMap.clear();//
renderer.setFramebuffer(null);renderer.setRenderTarget(renderer.getRenderTarget());// Hack #15830
animation.stop();scope.isPresenting=false;scope.dispatchEvent({type:'sessionend'});}function onRequestReferenceSpace(value){referenceSpace=value;animation.setContext(session);animation.start();scope.isPresenting=true;scope.dispatchEvent({type:'sessionstart'});}this.setFramebufferScaleFactor=function(value){framebufferScaleFactor=value;if(scope.isPresenting===true){console.warn('THREE.WebXRManager: Cannot change framebuffer scale while presenting.');}};this.setReferenceSpaceType=function(value){referenceSpaceType=value;if(scope.isPresenting===true){console.warn('THREE.WebXRManager: Cannot change reference space type while presenting.');}};this.getReferenceSpace=function(){return referenceSpace;};this.getSession=function(){return session;};this.setSession=function(value){session=value;if(session!==null){session.addEventListener('select',onSessionEvent);session.addEventListener('selectstart',onSessionEvent);session.addEventListener('selectend',onSessionEvent);session.addEventListener('squeeze',onSessionEvent);session.addEventListener('squeezestart',onSessionEvent);session.addEventListener('squeezeend',onSessionEvent);session.addEventListener('end',onSessionEnd);var attributes=gl.getContextAttributes();if(attributes.xrCompatible!==true){gl.makeXRCompatible();}var layerInit={antialias:attributes.antialias,alpha:attributes.alpha,depth:attributes.depth,stencil:attributes.stencil,framebufferScaleFactor:framebufferScaleFactor};// eslint-disable-next-line no-undef
var baseLayer=new XRWebGLLayer(session,gl,layerInit);session.updateRenderState({baseLayer:baseLayer});session.requestReferenceSpace(referenceSpaceType).then(onRequestReferenceSpace);//
session.addEventListener('inputsourceschange',updateInputSources);}};function updateInputSources(event){var inputSources=session.inputSources;// Assign inputSources to available controllers
for(var _i117=0;_i117<controllers.length;_i117++){inputSourcesMap.set(inputSources[_i117],controllers[_i117]);}// Notify disconnected
for(var _i118=0;_i118<event.removed.length;_i118++){var inputSource=event.removed[_i118];var controller=inputSourcesMap.get(inputSource);if(controller){controller.dispatchEvent({type:'disconnected',data:inputSource});inputSourcesMap.delete(inputSource);}}// Notify connected
for(var _i119=0;_i119<event.added.length;_i119++){var _inputSource=event.added[_i119];var _controller=inputSourcesMap.get(_inputSource);if(_controller){_controller.dispatchEvent({type:'connected',data:_inputSource});}}}//
var cameraLPos=new Vector3();var cameraRPos=new Vector3();/**
	 * Assumes 2 cameras that are parallel and share an X-axis, and that
	 * the cameras' projection and world matrices have already been set.
	 * And that near and far planes are identical for both cameras.
	 * Visualization of this technique: https://computergraphics.stackexchange.com/a/4765
	 */function setProjectionFromUnion(camera,cameraL,cameraR){cameraLPos.setFromMatrixPosition(cameraL.matrixWorld);cameraRPos.setFromMatrixPosition(cameraR.matrixWorld);var ipd=cameraLPos.distanceTo(cameraRPos);var projL=cameraL.projectionMatrix.elements;var projR=cameraR.projectionMatrix.elements;// VR systems will have identical far and near planes, and
// most likely identical top and bottom frustum extents.
// Use the left camera for these values.
var near=projL[14]/(projL[10]-1);var far=projL[14]/(projL[10]+1);var topFov=(projL[9]+1)/projL[5];var bottomFov=(projL[9]-1)/projL[5];var leftFov=(projL[8]-1)/projL[0];var rightFov=(projR[8]+1)/projR[0];var left=near*leftFov;var right=near*rightFov;// Calculate the new camera's position offset from the
// left camera. xOffset should be roughly half `ipd`.
var zOffset=ipd/(-leftFov+rightFov);var xOffset=zOffset*-leftFov;// TODO: Better way to apply this offset?
cameraL.matrixWorld.decompose(camera.position,camera.quaternion,camera.scale);camera.translateX(xOffset);camera.translateZ(zOffset);camera.matrixWorld.compose(camera.position,camera.quaternion,camera.scale);camera.matrixWorldInverse.copy(camera.matrixWorld).invert();// Find the union of the frustum values of the cameras and scale
// the values so that the near plane's position does not change in world space,
// although must now be relative to the new union camera.
var near2=near+zOffset;var far2=far+zOffset;var left2=left-xOffset;var right2=right+(ipd-xOffset);var top2=topFov*far/far2*near2;var bottom2=bottomFov*far/far2*near2;camera.projectionMatrix.makePerspective(left2,right2,top2,bottom2,near2,far2);}function updateCamera(camera,parent){if(parent===null){camera.matrixWorld.copy(camera.matrix);}else {camera.matrixWorld.multiplyMatrices(parent.matrixWorld,camera.matrix);}camera.matrixWorldInverse.copy(camera.matrixWorld).invert();}this.getCamera=function(camera){cameraVR.near=cameraR.near=cameraL.near=camera.near;cameraVR.far=cameraR.far=cameraL.far=camera.far;if(_currentDepthNear!==cameraVR.near||_currentDepthFar!==cameraVR.far){// Note that the new renderState won't apply until the next frame. See #18320
session.updateRenderState({depthNear:cameraVR.near,depthFar:cameraVR.far});_currentDepthNear=cameraVR.near;_currentDepthFar=cameraVR.far;}var parent=camera.parent;var cameras=cameraVR.cameras;updateCamera(cameraVR,parent);for(var _i120=0;_i120<cameras.length;_i120++){updateCamera(cameras[_i120],parent);}// update camera and its children
camera.matrixWorld.copy(cameraVR.matrixWorld);var children=camera.children;for(var _i121=0,l=children.length;_i121<l;_i121++){children[_i121].updateMatrixWorld(true);}// update projection matrix for proper view frustum culling
if(cameras.length===2){setProjectionFromUnion(cameraVR,cameraL,cameraR);}else {// assume single camera setup (AR)
cameraVR.projectionMatrix.copy(cameraL.projectionMatrix);}return cameraVR;};// Animation Loop
var onAnimationFrameCallback=null;function onAnimationFrame(time,frame){pose=frame.getViewerPose(referenceSpace);if(pose!==null){var views=pose.views;var baseLayer=session.renderState.baseLayer;renderer.setFramebuffer(baseLayer.framebuffer);var cameraVRNeedsUpdate=false;// check if it's necessary to rebuild cameraVR's camera list
if(views.length!==cameraVR.cameras.length){cameraVR.cameras.length=0;cameraVRNeedsUpdate=true;}for(var _i122=0;_i122<views.length;_i122++){var view=views[_i122];var viewport=baseLayer.getViewport(view);var camera=cameras[_i122];camera.matrix.fromArray(view.transform.matrix);camera.projectionMatrix.fromArray(view.projectionMatrix);camera.viewport.set(viewport.x,viewport.y,viewport.width,viewport.height);if(_i122===0){cameraVR.matrix.copy(camera.matrix);}if(cameraVRNeedsUpdate===true){cameraVR.cameras.push(camera);}}}//
var inputSources=session.inputSources;for(var _i123=0;_i123<controllers.length;_i123++){var controller=controllers[_i123];var inputSource=inputSources[_i123];controller.update(inputSource,frame,referenceSpace);}if(onAnimationFrameCallback)onAnimationFrameCallback(time,frame);}var animation=new WebGLAnimation();animation.setAnimationLoop(onAnimationFrame);this.setAnimationLoop=function(callback){onAnimationFrameCallback=callback;};this.dispose=function(){};}Object.assign(WebXRManager.prototype,EventDispatcher.prototype);function WebGLMaterials(properties){function refreshFogUniforms(uniforms,fog){uniforms.fogColor.value.copy(fog.color);if(fog.isFog){uniforms.fogNear.value=fog.near;uniforms.fogFar.value=fog.far;}else if(fog.isFogExp2){uniforms.fogDensity.value=fog.density;}}function refreshMaterialUniforms(uniforms,material,pixelRatio,height){if(material.isMeshBasicMaterial){refreshUniformsCommon(uniforms,material);}else if(material.isMeshLambertMaterial){refreshUniformsCommon(uniforms,material);refreshUniformsLambert(uniforms,material);}else if(material.isMeshToonMaterial){refreshUniformsCommon(uniforms,material);refreshUniformsToon(uniforms,material);}else if(material.isMeshPhongMaterial){refreshUniformsCommon(uniforms,material);refreshUniformsPhong(uniforms,material);}else if(material.isMeshStandardMaterial){refreshUniformsCommon(uniforms,material);if(material.isMeshPhysicalMaterial){refreshUniformsPhysical(uniforms,material);}else {refreshUniformsStandard(uniforms,material);}}else if(material.isMeshMatcapMaterial){refreshUniformsCommon(uniforms,material);refreshUniformsMatcap(uniforms,material);}else if(material.isMeshDepthMaterial){refreshUniformsCommon(uniforms,material);refreshUniformsDepth(uniforms,material);}else if(material.isMeshDistanceMaterial){refreshUniformsCommon(uniforms,material);refreshUniformsDistance(uniforms,material);}else if(material.isMeshNormalMaterial){refreshUniformsCommon(uniforms,material);refreshUniformsNormal(uniforms,material);}else if(material.isLineBasicMaterial){refreshUniformsLine(uniforms,material);if(material.isLineDashedMaterial){refreshUniformsDash(uniforms,material);}}else if(material.isPointsMaterial){refreshUniformsPoints(uniforms,material,pixelRatio,height);}else if(material.isSpriteMaterial){refreshUniformsSprites(uniforms,material);}else if(material.isShadowMaterial){uniforms.color.value.copy(material.color);uniforms.opacity.value=material.opacity;}else if(material.isShaderMaterial){material.uniformsNeedUpdate=false;// #15581
}}function refreshUniformsCommon(uniforms,material){uniforms.opacity.value=material.opacity;if(material.color){uniforms.diffuse.value.copy(material.color);}if(material.emissive){uniforms.emissive.value.copy(material.emissive).multiplyScalar(material.emissiveIntensity);}if(material.map){uniforms.map.value=material.map;}if(material.alphaMap){uniforms.alphaMap.value=material.alphaMap;}if(material.specularMap){uniforms.specularMap.value=material.specularMap;}var envMap=properties.get(material).envMap;if(envMap){uniforms.envMap.value=envMap;uniforms.flipEnvMap.value=envMap.isCubeTexture&&envMap._needsFlipEnvMap?-1:1;uniforms.reflectivity.value=material.reflectivity;uniforms.refractionRatio.value=material.refractionRatio;var maxMipLevel=properties.get(envMap).__maxMipLevel;if(maxMipLevel!==undefined){uniforms.maxMipLevel.value=maxMipLevel;}}if(material.lightMap){uniforms.lightMap.value=material.lightMap;uniforms.lightMapIntensity.value=material.lightMapIntensity;}if(material.aoMap){uniforms.aoMap.value=material.aoMap;uniforms.aoMapIntensity.value=material.aoMapIntensity;}// uv repeat and offset setting priorities
// 1. color map
// 2. specular map
// 3. displacementMap map
// 4. normal map
// 5. bump map
// 6. roughnessMap map
// 7. metalnessMap map
// 8. alphaMap map
// 9. emissiveMap map
// 10. clearcoat map
// 11. clearcoat normal map
// 12. clearcoat roughnessMap map
var uvScaleMap;if(material.map){uvScaleMap=material.map;}else if(material.specularMap){uvScaleMap=material.specularMap;}else if(material.displacementMap){uvScaleMap=material.displacementMap;}else if(material.normalMap){uvScaleMap=material.normalMap;}else if(material.bumpMap){uvScaleMap=material.bumpMap;}else if(material.roughnessMap){uvScaleMap=material.roughnessMap;}else if(material.metalnessMap){uvScaleMap=material.metalnessMap;}else if(material.alphaMap){uvScaleMap=material.alphaMap;}else if(material.emissiveMap){uvScaleMap=material.emissiveMap;}else if(material.clearcoatMap){uvScaleMap=material.clearcoatMap;}else if(material.clearcoatNormalMap){uvScaleMap=material.clearcoatNormalMap;}else if(material.clearcoatRoughnessMap){uvScaleMap=material.clearcoatRoughnessMap;}if(uvScaleMap!==undefined){// backwards compatibility
if(uvScaleMap.isWebGLRenderTarget){uvScaleMap=uvScaleMap.texture;}if(uvScaleMap.matrixAutoUpdate===true){uvScaleMap.updateMatrix();}uniforms.uvTransform.value.copy(uvScaleMap.matrix);}// uv repeat and offset setting priorities for uv2
// 1. ao map
// 2. light map
var uv2ScaleMap;if(material.aoMap){uv2ScaleMap=material.aoMap;}else if(material.lightMap){uv2ScaleMap=material.lightMap;}if(uv2ScaleMap!==undefined){// backwards compatibility
if(uv2ScaleMap.isWebGLRenderTarget){uv2ScaleMap=uv2ScaleMap.texture;}if(uv2ScaleMap.matrixAutoUpdate===true){uv2ScaleMap.updateMatrix();}uniforms.uv2Transform.value.copy(uv2ScaleMap.matrix);}}function refreshUniformsLine(uniforms,material){uniforms.diffuse.value.copy(material.color);uniforms.opacity.value=material.opacity;}function refreshUniformsDash(uniforms,material){uniforms.dashSize.value=material.dashSize;uniforms.totalSize.value=material.dashSize+material.gapSize;uniforms.scale.value=material.scale;}function refreshUniformsPoints(uniforms,material,pixelRatio,height){uniforms.diffuse.value.copy(material.color);uniforms.opacity.value=material.opacity;uniforms.size.value=material.size*pixelRatio;uniforms.scale.value=height*0.5;if(material.map){uniforms.map.value=material.map;}if(material.alphaMap){uniforms.alphaMap.value=material.alphaMap;}// uv repeat and offset setting priorities
// 1. color map
// 2. alpha map
var uvScaleMap;if(material.map){uvScaleMap=material.map;}else if(material.alphaMap){uvScaleMap=material.alphaMap;}if(uvScaleMap!==undefined){if(uvScaleMap.matrixAutoUpdate===true){uvScaleMap.updateMatrix();}uniforms.uvTransform.value.copy(uvScaleMap.matrix);}}function refreshUniformsSprites(uniforms,material){uniforms.diffuse.value.copy(material.color);uniforms.opacity.value=material.opacity;uniforms.rotation.value=material.rotation;if(material.map){uniforms.map.value=material.map;}if(material.alphaMap){uniforms.alphaMap.value=material.alphaMap;}// uv repeat and offset setting priorities
// 1. color map
// 2. alpha map
var uvScaleMap;if(material.map){uvScaleMap=material.map;}else if(material.alphaMap){uvScaleMap=material.alphaMap;}if(uvScaleMap!==undefined){if(uvScaleMap.matrixAutoUpdate===true){uvScaleMap.updateMatrix();}uniforms.uvTransform.value.copy(uvScaleMap.matrix);}}function refreshUniformsLambert(uniforms,material){if(material.emissiveMap){uniforms.emissiveMap.value=material.emissiveMap;}}function refreshUniformsPhong(uniforms,material){uniforms.specular.value.copy(material.specular);uniforms.shininess.value=Math.max(material.shininess,1e-4);// to prevent pow( 0.0, 0.0 )
if(material.emissiveMap){uniforms.emissiveMap.value=material.emissiveMap;}if(material.bumpMap){uniforms.bumpMap.value=material.bumpMap;uniforms.bumpScale.value=material.bumpScale;if(material.side===BackSide)uniforms.bumpScale.value*=-1;}if(material.normalMap){uniforms.normalMap.value=material.normalMap;uniforms.normalScale.value.copy(material.normalScale);if(material.side===BackSide)uniforms.normalScale.value.negate();}if(material.displacementMap){uniforms.displacementMap.value=material.displacementMap;uniforms.displacementScale.value=material.displacementScale;uniforms.displacementBias.value=material.displacementBias;}}function refreshUniformsToon(uniforms,material){if(material.gradientMap){uniforms.gradientMap.value=material.gradientMap;}if(material.emissiveMap){uniforms.emissiveMap.value=material.emissiveMap;}if(material.bumpMap){uniforms.bumpMap.value=material.bumpMap;uniforms.bumpScale.value=material.bumpScale;if(material.side===BackSide)uniforms.bumpScale.value*=-1;}if(material.normalMap){uniforms.normalMap.value=material.normalMap;uniforms.normalScale.value.copy(material.normalScale);if(material.side===BackSide)uniforms.normalScale.value.negate();}if(material.displacementMap){uniforms.displacementMap.value=material.displacementMap;uniforms.displacementScale.value=material.displacementScale;uniforms.displacementBias.value=material.displacementBias;}}function refreshUniformsStandard(uniforms,material){uniforms.roughness.value=material.roughness;uniforms.metalness.value=material.metalness;if(material.roughnessMap){uniforms.roughnessMap.value=material.roughnessMap;}if(material.metalnessMap){uniforms.metalnessMap.value=material.metalnessMap;}if(material.emissiveMap){uniforms.emissiveMap.value=material.emissiveMap;}if(material.bumpMap){uniforms.bumpMap.value=material.bumpMap;uniforms.bumpScale.value=material.bumpScale;if(material.side===BackSide)uniforms.bumpScale.value*=-1;}if(material.normalMap){uniforms.normalMap.value=material.normalMap;uniforms.normalScale.value.copy(material.normalScale);if(material.side===BackSide)uniforms.normalScale.value.negate();}if(material.displacementMap){uniforms.displacementMap.value=material.displacementMap;uniforms.displacementScale.value=material.displacementScale;uniforms.displacementBias.value=material.displacementBias;}var envMap=properties.get(material).envMap;if(envMap){//uniforms.envMap.value = material.envMap; // part of uniforms common
uniforms.envMapIntensity.value=material.envMapIntensity;}}function refreshUniformsPhysical(uniforms,material){refreshUniformsStandard(uniforms,material);uniforms.reflectivity.value=material.reflectivity;// also part of uniforms common
uniforms.clearcoat.value=material.clearcoat;uniforms.clearcoatRoughness.value=material.clearcoatRoughness;if(material.sheen)uniforms.sheen.value.copy(material.sheen);if(material.clearcoatMap){uniforms.clearcoatMap.value=material.clearcoatMap;}if(material.clearcoatRoughnessMap){uniforms.clearcoatRoughnessMap.value=material.clearcoatRoughnessMap;}if(material.clearcoatNormalMap){uniforms.clearcoatNormalScale.value.copy(material.clearcoatNormalScale);uniforms.clearcoatNormalMap.value=material.clearcoatNormalMap;if(material.side===BackSide){uniforms.clearcoatNormalScale.value.negate();}}uniforms.transmission.value=material.transmission;if(material.transmissionMap){uniforms.transmissionMap.value=material.transmissionMap;}}function refreshUniformsMatcap(uniforms,material){if(material.matcap){uniforms.matcap.value=material.matcap;}if(material.bumpMap){uniforms.bumpMap.value=material.bumpMap;uniforms.bumpScale.value=material.bumpScale;if(material.side===BackSide)uniforms.bumpScale.value*=-1;}if(material.normalMap){uniforms.normalMap.value=material.normalMap;uniforms.normalScale.value.copy(material.normalScale);if(material.side===BackSide)uniforms.normalScale.value.negate();}if(material.displacementMap){uniforms.displacementMap.value=material.displacementMap;uniforms.displacementScale.value=material.displacementScale;uniforms.displacementBias.value=material.displacementBias;}}function refreshUniformsDepth(uniforms,material){if(material.displacementMap){uniforms.displacementMap.value=material.displacementMap;uniforms.displacementScale.value=material.displacementScale;uniforms.displacementBias.value=material.displacementBias;}}function refreshUniformsDistance(uniforms,material){if(material.displacementMap){uniforms.displacementMap.value=material.displacementMap;uniforms.displacementScale.value=material.displacementScale;uniforms.displacementBias.value=material.displacementBias;}uniforms.referencePosition.value.copy(material.referencePosition);uniforms.nearDistance.value=material.nearDistance;uniforms.farDistance.value=material.farDistance;}function refreshUniformsNormal(uniforms,material){if(material.bumpMap){uniforms.bumpMap.value=material.bumpMap;uniforms.bumpScale.value=material.bumpScale;if(material.side===BackSide)uniforms.bumpScale.value*=-1;}if(material.normalMap){uniforms.normalMap.value=material.normalMap;uniforms.normalScale.value.copy(material.normalScale);if(material.side===BackSide)uniforms.normalScale.value.negate();}if(material.displacementMap){uniforms.displacementMap.value=material.displacementMap;uniforms.displacementScale.value=material.displacementScale;uniforms.displacementBias.value=material.displacementBias;}}return {refreshFogUniforms:refreshFogUniforms,refreshMaterialUniforms:refreshMaterialUniforms};}function createCanvasElement(){var canvas=document.createElementNS('http://www.w3.org/1999/xhtml','canvas');canvas.style.display='block';return canvas;}function WebGLRenderer(parameters){parameters=parameters||{};var _canvas=parameters.canvas!==undefined?parameters.canvas:createCanvasElement(),_context=parameters.context!==undefined?parameters.context:null,_alpha=parameters.alpha!==undefined?parameters.alpha:false,_depth=parameters.depth!==undefined?parameters.depth:true,_stencil=parameters.stencil!==undefined?parameters.stencil:true,_antialias=parameters.antialias!==undefined?parameters.antialias:false,_premultipliedAlpha=parameters.premultipliedAlpha!==undefined?parameters.premultipliedAlpha:true,_preserveDrawingBuffer=parameters.preserveDrawingBuffer!==undefined?parameters.preserveDrawingBuffer:false,_powerPreference=parameters.powerPreference!==undefined?parameters.powerPreference:'default',_failIfMajorPerformanceCaveat=parameters.failIfMajorPerformanceCaveat!==undefined?parameters.failIfMajorPerformanceCaveat:false;var currentRenderList=null;var currentRenderState=null;// render() can be called from within a callback triggered by another render.
// We track this so that the nested render call gets its state isolated from the parent render call.
var renderStateStack=[];// public properties
this.domElement=_canvas;// Debug configuration container
this.debug={/**
		 * Enables error checking and reporting when shader programs are being compiled
		 * @type {boolean}
		 */checkShaderErrors:true};// clearing
this.autoClear=true;this.autoClearColor=true;this.autoClearDepth=true;this.autoClearStencil=true;// scene graph
this.sortObjects=true;// user-defined clipping
this.clippingPlanes=[];this.localClippingEnabled=false;// physically based shading
this.gammaFactor=2.0;// for backwards compatibility
this.outputEncoding=LinearEncoding;// physical lights
this.physicallyCorrectLights=false;// tone mapping
this.toneMapping=NoToneMapping;this.toneMappingExposure=1.0;// morphs
this.maxMorphTargets=8;this.maxMorphNormals=4;// internal properties
var _this=this;var _isContextLost=false;// internal state cache
var _framebuffer=null;var _currentActiveCubeFace=0;var _currentActiveMipmapLevel=0;var _currentRenderTarget=null;var _currentFramebuffer=null;var _currentMaterialId=-1;var _currentCamera=null;var _currentViewport=new Vector4();var _currentScissor=new Vector4();var _currentScissorTest=null;//
var _width=_canvas.width;var _height=_canvas.height;var _pixelRatio=1;var _opaqueSort=null;var _transparentSort=null;var _viewport=new Vector4(0,0,_width,_height);var _scissor=new Vector4(0,0,_width,_height);var _scissorTest=false;// frustum
var _frustum=new Frustum();// clipping
var _clippingEnabled=false;var _localClippingEnabled=false;// camera matrices cache
var _projScreenMatrix=new Matrix4();var _vector3=new Vector3();var _emptyScene={background:null,fog:null,environment:null,overrideMaterial:null,isScene:true};function getTargetPixelRatio(){return _currentRenderTarget===null?_pixelRatio:1;}// initialize
var _gl=_context;function getContext(contextNames,contextAttributes){for(var _i124=0;_i124<contextNames.length;_i124++){var contextName=contextNames[_i124];var context=_canvas.getContext(contextName,contextAttributes);if(context!==null)return context;}return null;}try{var contextAttributes={alpha:_alpha,depth:_depth,stencil:_stencil,antialias:_antialias,premultipliedAlpha:_premultipliedAlpha,preserveDrawingBuffer:_preserveDrawingBuffer,powerPreference:_powerPreference,failIfMajorPerformanceCaveat:_failIfMajorPerformanceCaveat};// event listeners must be registered before WebGL context is created, see #12753
_canvas.addEventListener('webglcontextlost',onContextLost,false);_canvas.addEventListener('webglcontextrestored',onContextRestore,false);if(_gl===null){var contextNames=['webgl2','webgl','experimental-webgl'];if(_this.isWebGL1Renderer===true){contextNames.shift();}_gl=getContext(contextNames,contextAttributes);if(_gl===null){if(getContext(contextNames)){throw new Error('Error creating WebGL context with your selected attributes.');}else {throw new Error('Error creating WebGL context.');}}}// Some experimental-webgl implementations do not have getShaderPrecisionFormat
if(_gl.getShaderPrecisionFormat===undefined){_gl.getShaderPrecisionFormat=function(){return {'rangeMin':1,'rangeMax':1,'precision':1};};}}catch(error){console.error('THREE.WebGLRenderer: '+error.message);throw error;}var extensions,capabilities,state,info;var properties,textures,cubemaps,attributes,geometries,objects;var programCache,materials,renderLists,renderStates,clipping;var background,morphtargets,bufferRenderer,indexedBufferRenderer;var utils,bindingStates;function initGLContext(){extensions=new WebGLExtensions(_gl);capabilities=new WebGLCapabilities(_gl,extensions,parameters);if(capabilities.isWebGL2===false){extensions.get('WEBGL_depth_texture');extensions.get('OES_texture_float');extensions.get('OES_texture_half_float');extensions.get('OES_texture_half_float_linear');extensions.get('OES_standard_derivatives');extensions.get('OES_element_index_uint');extensions.get('OES_vertex_array_object');extensions.get('ANGLE_instanced_arrays');}extensions.get('OES_texture_float_linear');utils=new WebGLUtils(_gl,extensions,capabilities);state=new WebGLState(_gl,extensions,capabilities);state.scissor(_currentScissor.copy(_scissor).multiplyScalar(_pixelRatio).floor());state.viewport(_currentViewport.copy(_viewport).multiplyScalar(_pixelRatio).floor());info=new WebGLInfo(_gl);properties=new WebGLProperties();textures=new WebGLTextures(_gl,extensions,state,properties,capabilities,utils,info);cubemaps=new WebGLCubeMaps(_this);attributes=new WebGLAttributes(_gl,capabilities);bindingStates=new WebGLBindingStates(_gl,extensions,attributes,capabilities);geometries=new WebGLGeometries(_gl,attributes,info,bindingStates);objects=new WebGLObjects(_gl,geometries,attributes,info);morphtargets=new WebGLMorphtargets(_gl);clipping=new WebGLClipping(properties);programCache=new WebGLPrograms(_this,cubemaps,extensions,capabilities,bindingStates,clipping);materials=new WebGLMaterials(properties);renderLists=new WebGLRenderLists(properties);renderStates=new WebGLRenderStates(extensions,capabilities);background=new WebGLBackground(_this,cubemaps,state,objects,_premultipliedAlpha);bufferRenderer=new WebGLBufferRenderer(_gl,extensions,info,capabilities);indexedBufferRenderer=new WebGLIndexedBufferRenderer(_gl,extensions,info,capabilities);info.programs=programCache.programs;_this.capabilities=capabilities;_this.extensions=extensions;_this.properties=properties;_this.renderLists=renderLists;_this.state=state;_this.info=info;_this._textures=textures;//add 
}initGLContext();// xr
var xr=new WebXRManager(_this,_gl);this.xr=xr;// shadow map
var shadowMap=new WebGLShadowMap(_this,objects,capabilities.maxTextureSize);this.shadowMap=shadowMap;// API
this.getContext=function(){return _gl;};this.getContextAttributes=function(){return _gl.getContextAttributes();};this.forceContextLoss=function(){var extension=extensions.get('WEBGL_lose_context');if(extension)extension.loseContext();};this.forceContextRestore=function(){var extension=extensions.get('WEBGL_lose_context');if(extension)extension.restoreContext();};this.getPixelRatio=function(){return _pixelRatio;};this.setPixelRatio=function(value){if(value===undefined)return;_pixelRatio=value;this.setSize(_width,_height,false);};this.getSize=function(target){if(target===undefined){console.warn('WebGLRenderer: .getsize() now requires a Vector2 as an argument');target=new Vector2();}return target.set(_width,_height);};this.setSize=function(width,height,updateStyle){if(xr.isPresenting){console.warn('THREE.WebGLRenderer: Can\'t change size while VR device is presenting.');return;}_width=width;_height=height;_canvas.width=Math.floor(width*_pixelRatio);_canvas.height=Math.floor(height*_pixelRatio);if(updateStyle!==false){_canvas.style.width=width+'px';_canvas.style.height=height+'px';}this.setViewport(0,0,width,height);};this.getDrawingBufferSize=function(target){if(target===undefined){console.warn('WebGLRenderer: .getdrawingBufferSize() now requires a Vector2 as an argument');target=new Vector2();}return target.set(_width*_pixelRatio,_height*_pixelRatio).floor();};this.setDrawingBufferSize=function(width,height,pixelRatio){_width=width;_height=height;_pixelRatio=pixelRatio;_canvas.width=Math.floor(width*pixelRatio);_canvas.height=Math.floor(height*pixelRatio);this.setViewport(0,0,width,height);};this.getCurrentViewport=function(target){if(target===undefined){console.warn('WebGLRenderer: .getCurrentViewport() now requires a Vector4 as an argument');target=new Vector4();}return target.copy(_currentViewport);};this.getViewport=function(target){return target.copy(_viewport);};this.setViewport=function(x,y,width,height){if(x.isVector4){_viewport.set(x.x,x.y,x.z,x.w);}else {_viewport.set(x,y,width,height);}state.viewport(_currentViewport.copy(_viewport).multiplyScalar(_pixelRatio).floor());};this.getScissor=function(target){return target.copy(_scissor);};this.setScissor=function(x,y,width,height){if(x.isVector4){_scissor.set(x.x,x.y,x.z,x.w);}else {_scissor.set(x,y,width,height);}state.scissor(_currentScissor.copy(_scissor).multiplyScalar(_pixelRatio).floor());};this.getScissorTest=function(){return _scissorTest;};this.setScissorTest=function(boolean){state.setScissorTest(_scissorTest=boolean);};this.setOpaqueSort=function(method){_opaqueSort=method;};this.setTransparentSort=function(method){_transparentSort=method;};// Clearing
this.getClearColor=function(target){if(target===undefined){console.warn('WebGLRenderer: .getClearColor() now requires a Color as an argument');target=new Color();}return target.copy(background.getClearColor());};this.setClearColor=function(){background.setClearColor.apply(background,arguments);};this.getClearAlpha=function(){return background.getClearAlpha();};this.setClearAlpha=function(){background.setClearAlpha.apply(background,arguments);};this.clear=function(color,depth,stencil){var bits=0;if(color===undefined||color)bits|=16384;if(depth===undefined||depth)bits|=256;if(stencil===undefined||stencil)bits|=1024;_gl.clear(bits);};this.clearColor=function(){this.clear(true,false,false);};this.clearDepth=function(){this.clear(false,true,false);};this.clearStencil=function(){this.clear(false,false,true);};//
this.dispose=function(){_canvas.removeEventListener('webglcontextlost',onContextLost,false);_canvas.removeEventListener('webglcontextrestored',onContextRestore,false);renderLists.dispose();renderStates.dispose();properties.dispose();cubemaps.dispose();objects.dispose();bindingStates.dispose();xr.dispose();animation.stop();};// Events
function onContextLost(event){event.preventDefault();console.log('THREE.WebGLRenderer: Context Lost.');_isContextLost=true;}function onContextRestore(/* event */){console.log('THREE.WebGLRenderer: Context Restored.');_isContextLost=false;initGLContext();}function onMaterialDispose(event){var material=event.target;material.removeEventListener('dispose',onMaterialDispose);deallocateMaterial(material);}// Buffer deallocation
function deallocateMaterial(material){releaseMaterialProgramReference(material);properties.remove(material);}function releaseMaterialProgramReference(material){var programInfo=properties.get(material).program;if(programInfo!==undefined){programCache.releaseProgram(programInfo);}}// Buffer rendering
function renderObjectImmediate(object,program){object.render(function(object){_this.renderBufferImmediate(object,program);});}this.renderBufferImmediate=function(object,program){bindingStates.initAttributes();var buffers=properties.get(object);if(object.hasPositions&&!buffers.position)buffers.position=_gl.createBuffer();if(object.hasNormals&&!buffers.normal)buffers.normal=_gl.createBuffer();if(object.hasUvs&&!buffers.uv)buffers.uv=_gl.createBuffer();if(object.hasColors&&!buffers.color)buffers.color=_gl.createBuffer();var programAttributes=program.getAttributes();if(object.hasPositions){_gl.bindBuffer(34962,buffers.position);_gl.bufferData(34962,object.positionArray,35048);bindingStates.enableAttribute(programAttributes.position);_gl.vertexAttribPointer(programAttributes.position,3,5126,false,0,0);}if(object.hasNormals){_gl.bindBuffer(34962,buffers.normal);_gl.bufferData(34962,object.normalArray,35048);bindingStates.enableAttribute(programAttributes.normal);_gl.vertexAttribPointer(programAttributes.normal,3,5126,false,0,0);}if(object.hasUvs){_gl.bindBuffer(34962,buffers.uv);_gl.bufferData(34962,object.uvArray,35048);bindingStates.enableAttribute(programAttributes.uv);_gl.vertexAttribPointer(programAttributes.uv,2,5126,false,0,0);}if(object.hasColors){_gl.bindBuffer(34962,buffers.color);_gl.bufferData(34962,object.colorArray,35048);bindingStates.enableAttribute(programAttributes.color);_gl.vertexAttribPointer(programAttributes.color,3,5126,false,0,0);}bindingStates.disableUnusedAttributes();_gl.drawArrays(4,0,object.count);object.count=0;};this.renderBufferDirect=function(camera,scene,geometry,material,object,group){if(scene===null)scene=_emptyScene;// renderBufferDirect second parameter used to be fog (could be null)
var frontFaceCW=object.isMesh&&object.matrixWorld.determinant()<0;var program=setProgram(camera,scene,material,object);state.setMaterial(material,frontFaceCW);//
var index=geometry.index;var position=geometry.attributes.position;//
if(index===null){if(position===undefined||position.count===0)return;}else if(index.count===0){return;}//
var rangeFactor=1;if(material.wireframe===true){index=geometries.getWireframeAttribute(geometry);rangeFactor=2;}if(material.morphTargets||material.morphNormals){morphtargets.update(object,geometry,material,program);}bindingStates.setup(object,material,program,geometry,index);var attribute;var renderer=bufferRenderer;if(index!==null){attribute=attributes.get(index);renderer=indexedBufferRenderer;renderer.setIndex(attribute);}//
var dataCount=index!==null?index.count:position.count;var rangeStart=geometry.drawRange.start*rangeFactor;var rangeCount=geometry.drawRange.count*rangeFactor;var groupStart=group!==null?group.start*rangeFactor:0;var groupCount=group!==null?group.count*rangeFactor:Infinity;var drawStart=Math.max(rangeStart,groupStart);var drawEnd=Math.min(dataCount,rangeStart+rangeCount,groupStart+groupCount)-1;var drawCount=Math.max(0,drawEnd-drawStart+1);if(drawCount===0)return;//
if(object.isMesh){if(material.wireframe===true){state.setLineWidth(material.wireframeLinewidth*getTargetPixelRatio());renderer.setMode(1);}else {renderer.setMode(4);}}else if(object.isLine){var lineWidth=material.linewidth;if(lineWidth===undefined)lineWidth=1;// Not using Line*Material
state.setLineWidth(lineWidth*getTargetPixelRatio());if(object.isLineSegments){renderer.setMode(1);}else if(object.isLineLoop){renderer.setMode(2);}else {renderer.setMode(3);}}else if(object.isPoints){renderer.setMode(0);}else if(object.isSprite){renderer.setMode(4);}if(object.isInstancedMesh){renderer.renderInstances(drawStart,drawCount,object.count);}else if(geometry.isInstancedBufferGeometry){var instanceCount=Math.min(geometry.instanceCount,geometry._maxInstanceCount);renderer.renderInstances(drawStart,drawCount,instanceCount);}else {renderer.render(drawStart,drawCount);}};// Compile
this.compile=function(scene,camera){currentRenderState=renderStates.get(scene);currentRenderState.init();scene.traverseVisible(function(object){if(object.isLight&&object.layers.test(camera.layers)){currentRenderState.pushLight(object);if(object.castShadow){currentRenderState.pushShadow(object);}}});currentRenderState.setupLights();var compiled=new WeakMap();scene.traverse(function(object){var material=object.material;if(material){if(Array.isArray(material)){for(var _i125=0;_i125<material.length;_i125++){var material2=material[_i125];if(compiled.has(material2)===false){initMaterial(material2,scene,object);compiled.set(material2);}}}else if(compiled.has(material)===false){initMaterial(material,scene,object);compiled.set(material);}}});};// Animation Loop
var onAnimationFrameCallback=null;function onAnimationFrame(time){if(xr.isPresenting)return;if(onAnimationFrameCallback)onAnimationFrameCallback(time);}var animation=new WebGLAnimation();animation.setAnimationLoop(onAnimationFrame);if(typeof window!=='undefined')animation.setContext(window);this.setAnimationLoop=function(callback){onAnimationFrameCallback=callback;xr.setAnimationLoop(callback);callback===null?animation.stop():animation.start();};// Rendering
this.render=function(scene,camera){var renderTarget,forceClear;if(arguments[2]!==undefined){console.warn('THREE.WebGLRenderer.render(): the renderTarget argument has been removed. Use .setRenderTarget() instead.');renderTarget=arguments[2];}if(arguments[3]!==undefined){console.warn('THREE.WebGLRenderer.render(): the forceClear argument has been removed. Use .clear() instead.');forceClear=arguments[3];}if(camera!==undefined&&camera.isCamera!==true){console.error('THREE.WebGLRenderer.render: camera is not an instance of THREE.Camera.');return;}if(_isContextLost===true)return;// reset caching for this frame
bindingStates.resetDefaultState();_currentMaterialId=-1;_currentCamera=null;// update scene graph
if(scene.autoUpdate===true)scene.updateMatrixWorld();// update camera matrices and frustum
if(camera.parent===null)camera.updateMatrixWorld();if(xr.enabled===true&&xr.isPresenting===true){camera=xr.getCamera(camera);}//
if(scene.isScene===true)scene.onBeforeRender(_this,scene,camera,renderTarget||_currentRenderTarget);currentRenderState=renderStates.get(scene,renderStateStack.length);currentRenderState.init();renderStateStack.push(currentRenderState);_projScreenMatrix.multiplyMatrices(camera.projectionMatrix,camera.matrixWorldInverse);_frustum.setFromProjectionMatrix(_projScreenMatrix);_localClippingEnabled=this.localClippingEnabled;_clippingEnabled=clipping.init(this.clippingPlanes,_localClippingEnabled,camera);currentRenderList=renderLists.get(scene,camera);currentRenderList.init();projectObject(scene,camera,0,_this.sortObjects);currentRenderList.finish();if(_this.sortObjects===true){currentRenderList.sort(_opaqueSort,_transparentSort);}//
if(_clippingEnabled===true)clipping.beginShadows();var shadowsArray=currentRenderState.state.shadowsArray;shadowMap.render(shadowsArray,scene,camera);currentRenderState.setupLights();currentRenderState.setupLightsView(camera);if(_clippingEnabled===true)clipping.endShadows();//
if(this.info.autoReset===true)this.info.reset();if(renderTarget!==undefined){this.setRenderTarget(renderTarget);}//
background.render(currentRenderList,scene,camera,forceClear);// render scene
var opaqueObjects=currentRenderList.opaque;var transparentObjects=currentRenderList.transparent;if(opaqueObjects.length>0)renderObjects(opaqueObjects,scene,camera);if(transparentObjects.length>0)renderObjects(transparentObjects,scene,camera);//
if(scene.isScene===true)scene.onAfterRender(_this,scene,camera);//
if(_currentRenderTarget!==null){// Generate mipmap if we're using any kind of mipmap filtering
textures.updateRenderTargetMipmap(_currentRenderTarget);// resolve multisample renderbuffers to a single-sample texture if necessary
textures.updateMultisampleRenderTarget(_currentRenderTarget);}// Ensure depth buffer writing is enabled so it can be cleared on next render
state.buffers.depth.setTest(true);state.buffers.depth.setMask(true);state.buffers.color.setMask(true);state.setPolygonOffset(false);// _gl.finish();
renderStateStack.pop();if(renderStateStack.length>0){currentRenderState=renderStateStack[renderStateStack.length-1];}else {currentRenderState=null;}currentRenderList=null;};function projectObject(object,camera,groupOrder,sortObjects){if(object.visible===false)return;var visible=object.layers.test(camera.layers);if(visible){if(object.isGroup){groupOrder=object.renderOrder;}else if(object.isLOD){if(object.autoUpdate===true)object.update(camera);}else if(object.isLight){currentRenderState.pushLight(object);if(object.castShadow){currentRenderState.pushShadow(object);}}else if(object.isSprite){if(!object.frustumCulled||_frustum.intersectsSprite(object)){if(sortObjects){_vector3.setFromMatrixPosition(object.matrixWorld).applyMatrix4(_projScreenMatrix);}var geometry=objects.update(object);var material=object.material;if(material.visible){currentRenderList.push(object,geometry,material,groupOrder,_vector3.z,null);}}}else if(object.isImmediateRenderObject){if(sortObjects){_vector3.setFromMatrixPosition(object.matrixWorld).applyMatrix4(_projScreenMatrix);}currentRenderList.push(object,null,object.material,groupOrder,_vector3.z,null);}else if(object.isMesh||object.isLine||object.isPoints){if(object.isSkinnedMesh){// update skeleton only once in a frame
if(object.skeleton.frame!==info.render.frame){object.skeleton.update();object.skeleton.frame=info.render.frame;}}if(!object.frustumCulled||_frustum.intersectsObject(object)){if(sortObjects){_vector3.setFromMatrixPosition(object.matrixWorld).applyMatrix4(_projScreenMatrix);}var _geometry2=objects.update(object);var _material=object.material;if(Array.isArray(_material)){var groups=_geometry2.groups;for(var _i126=0,l=groups.length;_i126<l;_i126++){var group=groups[_i126];var groupMaterial=_material[group.materialIndex];if(groupMaterial&&groupMaterial.visible){currentRenderList.push(object,_geometry2,groupMaterial,groupOrder,_vector3.z,group);}}}else if(_material.visible){currentRenderList.push(object,_geometry2,_material,groupOrder,_vector3.z,null);}}}}var children=object.children;for(var _i127=0,_l5=children.length;_i127<_l5;_i127++){projectObject(children[_i127],camera,groupOrder,sortObjects);}}function renderObjects(renderList,scene,camera){var overrideMaterial=scene.isScene===true?scene.overrideMaterial:null;for(var _i128=0,l=renderList.length;_i128<l;_i128++){var renderItem=renderList[_i128];var object=renderItem.object;var geometry=renderItem.geometry;var material=overrideMaterial===null?renderItem.material:overrideMaterial;var group=renderItem.group;if(camera.isArrayCamera){var cameras=camera.cameras;for(var j=0,jl=cameras.length;j<jl;j++){var camera2=cameras[j];if(object.layers.test(camera2.layers)){state.viewport(_currentViewport.copy(camera2.viewport));currentRenderState.setupLightsView(camera2);renderObject(object,scene,camera2,geometry,material,group);}}}else {renderObject(object,scene,camera,geometry,material,group);}}}function renderObject(object,scene,camera,geometry,material,group){object.onBeforeRender(_this,scene,camera,geometry,material,group);object.modelViewMatrix.multiplyMatrices(camera.matrixWorldInverse,object.matrixWorld);object.normalMatrix.getNormalMatrix(object.modelViewMatrix);if(object.isImmediateRenderObject){var program=setProgram(camera,scene,material,object);state.setMaterial(material);bindingStates.reset();renderObjectImmediate(object,program);}else {_this.renderBufferDirect(camera,scene,geometry,material,object,group);}object.onAfterRender(_this,scene,camera,geometry,material,group);}function initMaterial(material,scene,object){if(scene.isScene!==true)scene=_emptyScene;// scene could be a Mesh, Line, Points, ...
var materialProperties=properties.get(material);var lights=currentRenderState.state.lights;var shadowsArray=currentRenderState.state.shadowsArray;var lightsStateVersion=lights.state.version;var parameters=programCache.getParameters(material,lights.state,shadowsArray,scene,object);var programCacheKey=programCache.getProgramCacheKey(parameters);var program=materialProperties.program;var programChange=true;if(program===undefined){// new material
material.addEventListener('dispose',onMaterialDispose);}else if(program.cacheKey!==programCacheKey){// changed glsl or parameters
releaseMaterialProgramReference(material);}else if(materialProperties.lightsStateVersion!==lightsStateVersion){programChange=false;}else if(parameters.shaderID!==undefined){// same glsl and uniform list, envMap still needs the update here to avoid a frame-late effect
var environment=material.isMeshStandardMaterial?scene.environment:null;materialProperties.envMap=cubemaps.get(material.envMap||environment);return;}else {// only rebuild uniform list
programChange=false;}if(programChange){parameters.uniforms=programCache.getUniforms(material);material.onBeforeCompile(parameters,_this);program=programCache.acquireProgram(parameters,programCacheKey);materialProperties.program=program;materialProperties.uniforms=parameters.uniforms;materialProperties.outputEncoding=parameters.outputEncoding;}var uniforms=materialProperties.uniforms;if(!material.isShaderMaterial&&!material.isRawShaderMaterial||material.clipping===true){materialProperties.numClippingPlanes=clipping.numPlanes;materialProperties.numIntersection=clipping.numIntersection;uniforms.clippingPlanes=clipping.uniform;}materialProperties.environment=material.isMeshStandardMaterial?scene.environment:null;materialProperties.fog=scene.fog;materialProperties.envMap=cubemaps.get(material.envMap||materialProperties.environment);// store the light setup it was created for
materialProperties.needsLights=materialNeedsLights(material);materialProperties.lightsStateVersion=lightsStateVersion;if(materialProperties.needsLights){// wire up the material to this renderer's lighting state
uniforms.ambientLightColor.value=lights.state.ambient;uniforms.lightProbe.value=lights.state.probe;uniforms.directionalLights.value=lights.state.directional;uniforms.directionalLightShadows.value=lights.state.directionalShadow;uniforms.spotLights.value=lights.state.spot;uniforms.spotLightShadows.value=lights.state.spotShadow;uniforms.rectAreaLights.value=lights.state.rectArea;uniforms.ltc_1.value=lights.state.rectAreaLTC1;uniforms.ltc_2.value=lights.state.rectAreaLTC2;uniforms.pointLights.value=lights.state.point;uniforms.pointLightShadows.value=lights.state.pointShadow;uniforms.hemisphereLights.value=lights.state.hemi;uniforms.directionalShadowMap.value=lights.state.directionalShadowMap;uniforms.directionalShadowMatrix.value=lights.state.directionalShadowMatrix;uniforms.spotShadowMap.value=lights.state.spotShadowMap;uniforms.spotShadowMatrix.value=lights.state.spotShadowMatrix;uniforms.pointShadowMap.value=lights.state.pointShadowMap;uniforms.pointShadowMatrix.value=lights.state.pointShadowMatrix;// TODO (abelnation): add area lights shadow info to uniforms
}var progUniforms=materialProperties.program.getUniforms();var uniformsList=WebGLUniforms.seqWithValue(progUniforms.seq,uniforms);materialProperties.uniformsList=uniformsList;}function setProgram(camera,scene,material,object){if(scene.isScene!==true)scene=_emptyScene;// scene could be a Mesh, Line, Points, ...
textures.resetTextureUnits();var fog=scene.fog;var environment=material.isMeshStandardMaterial?scene.environment:null;var encoding=_currentRenderTarget===null?_this.outputEncoding:_currentRenderTarget.texture.encoding;var envMap=cubemaps.get(material.envMap||environment);var materialProperties=properties.get(material);var lights=currentRenderState.state.lights;if(_clippingEnabled===true){if(_localClippingEnabled===true||camera!==_currentCamera){var useCache=camera===_currentCamera&&material.id===_currentMaterialId;// we might want to call this function with some ClippingGroup
// object instead of the material, once it becomes feasible
// (#8465, #8379)
clipping.setState(material,camera,useCache);}}if(material.version===materialProperties.__version){if(material.fog&&materialProperties.fog!==fog){initMaterial(material,scene,object);}else if(materialProperties.environment!==environment){initMaterial(material,scene,object);}else if(materialProperties.needsLights&&materialProperties.lightsStateVersion!==lights.state.version){initMaterial(material,scene,object);}else if(materialProperties.numClippingPlanes!==undefined&&(materialProperties.numClippingPlanes!==clipping.numPlanes||materialProperties.numIntersection!==clipping.numIntersection)){initMaterial(material,scene,object);}else if(materialProperties.outputEncoding!==encoding){initMaterial(material,scene,object);}else if(materialProperties.envMap!==envMap){initMaterial(material,scene,object);}}else {initMaterial(material,scene,object);materialProperties.__version=material.version;}var refreshProgram=false;var refreshMaterial=false;var refreshLights=false;var program=materialProperties.program,p_uniforms=program.getUniforms(),m_uniforms=materialProperties.uniforms;if(state.useProgram(program.program)){refreshProgram=true;refreshMaterial=true;refreshLights=true;}if(material.id!==_currentMaterialId){_currentMaterialId=material.id;refreshMaterial=true;}if(refreshProgram||_currentCamera!==camera){p_uniforms.setValue(_gl,'projectionMatrix',camera.projectionMatrix);if(capabilities.logarithmicDepthBuffer){p_uniforms.setValue(_gl,'logDepthBufFC',2.0/(Math.log(camera.far+1.0)/Math.LN2));}if(_currentCamera!==camera){_currentCamera=camera;// lighting uniforms depend on the camera so enforce an update
// now, in case this material supports lights - or later, when
// the next material that does gets activated:
refreshMaterial=true;// set to true on material change
refreshLights=true;// remains set until update done
}// load material specific uniforms
// (shader material also gets them for the sake of genericity)
if(material.isShaderMaterial||material.isMeshPhongMaterial||material.isMeshToonMaterial||material.isMeshStandardMaterial||material.envMap){var uCamPos=p_uniforms.map.cameraPosition;if(uCamPos!==undefined){uCamPos.setValue(_gl,_vector3.setFromMatrixPosition(camera.matrixWorld));}}if(material.isMeshPhongMaterial||material.isMeshToonMaterial||material.isMeshLambertMaterial||material.isMeshBasicMaterial||material.isMeshStandardMaterial||material.isShaderMaterial){p_uniforms.setValue(_gl,'isOrthographic',camera.isOrthographicCamera===true);}if(material.isMeshPhongMaterial||material.isMeshToonMaterial||material.isMeshLambertMaterial||material.isMeshBasicMaterial||material.isMeshStandardMaterial||material.isShaderMaterial||material.isShadowMaterial||material.skinning){p_uniforms.setValue(_gl,'viewMatrix',camera.matrixWorldInverse);}}// skinning uniforms must be set even if material didn't change
// auto-setting of texture unit for bone texture must go before other textures
// otherwise textures used for skinning can take over texture units reserved for other material textures
if(material.skinning){p_uniforms.setOptional(_gl,object,'bindMatrix');p_uniforms.setOptional(_gl,object,'bindMatrixInverse');var skeleton=object.skeleton;if(skeleton){var bones=skeleton.bones;if(capabilities.floatVertexTextures){if(skeleton.boneTexture===null){// layout (1 matrix = 4 pixels)
//      RGBA RGBA RGBA RGBA (=> column1, column2, column3, column4)
//  with  8x8  pixel texture max   16 bones * 4 pixels =  (8 * 8)
//       16x16 pixel texture max   64 bones * 4 pixels = (16 * 16)
//       32x32 pixel texture max  256 bones * 4 pixels = (32 * 32)
//       64x64 pixel texture max 1024 bones * 4 pixels = (64 * 64)
var size=Math.sqrt(bones.length*4);// 4 pixels needed for 1 matrix
size=MathUtils.ceilPowerOfTwo(size);size=Math.max(size,4);var boneMatrices=new Float32Array(size*size*4);// 4 floats per RGBA pixel
boneMatrices.set(skeleton.boneMatrices);// copy current values
var boneTexture=new DataTexture(boneMatrices,size,size,RGBAFormat,FloatType);skeleton.boneMatrices=boneMatrices;skeleton.boneTexture=boneTexture;skeleton.boneTextureSize=size;}p_uniforms.setValue(_gl,'boneTexture',skeleton.boneTexture,textures);p_uniforms.setValue(_gl,'boneTextureSize',skeleton.boneTextureSize);}else {p_uniforms.setOptional(_gl,skeleton,'boneMatrices');}}}if(refreshMaterial||materialProperties.receiveShadow!==object.receiveShadow){materialProperties.receiveShadow=object.receiveShadow;p_uniforms.setValue(_gl,'receiveShadow',object.receiveShadow);}if(refreshMaterial){p_uniforms.setValue(_gl,'toneMappingExposure',_this.toneMappingExposure);if(materialProperties.needsLights){// the current material requires lighting info
// note: all lighting uniforms are always set correctly
// they simply reference the renderer's state for their
// values
//
// use the current material's .needsUpdate flags to set
// the GL state when required
markUniformsLightsNeedsUpdate(m_uniforms,refreshLights);}// refresh uniforms common to several materials
if(fog&&material.fog){materials.refreshFogUniforms(m_uniforms,fog);}materials.refreshMaterialUniforms(m_uniforms,material,_pixelRatio,_height);WebGLUniforms.upload(_gl,materialProperties.uniformsList,m_uniforms,textures);}if(material.isShaderMaterial&&material.uniformsNeedUpdate===true){WebGLUniforms.upload(_gl,materialProperties.uniformsList,m_uniforms,textures);material.uniformsNeedUpdate=false;}if(material.isSpriteMaterial){p_uniforms.setValue(_gl,'center',object.center);}// common matrices
p_uniforms.setValue(_gl,'modelViewMatrix',object.modelViewMatrix);p_uniforms.setValue(_gl,'normalMatrix',object.normalMatrix);p_uniforms.setValue(_gl,'modelMatrix',object.matrixWorld);return program;}// If uniforms are marked as clean, they don't need to be loaded to the GPU.
function markUniformsLightsNeedsUpdate(uniforms,value){uniforms.ambientLightColor.needsUpdate=value;uniforms.lightProbe.needsUpdate=value;uniforms.directionalLights.needsUpdate=value;uniforms.directionalLightShadows.needsUpdate=value;uniforms.pointLights.needsUpdate=value;uniforms.pointLightShadows.needsUpdate=value;uniforms.spotLights.needsUpdate=value;uniforms.spotLightShadows.needsUpdate=value;uniforms.rectAreaLights.needsUpdate=value;uniforms.hemisphereLights.needsUpdate=value;}function materialNeedsLights(material){return material.isMeshLambertMaterial||material.isMeshToonMaterial||material.isMeshPhongMaterial||material.isMeshStandardMaterial||material.isShadowMaterial||material.isShaderMaterial&&material.lights===true;}//
this.setFramebuffer=function(value){if(_framebuffer!==value&&_currentRenderTarget===null)_gl.bindFramebuffer(36160,value);_framebuffer=value;};this.getActiveCubeFace=function(){return _currentActiveCubeFace;};this.getActiveMipmapLevel=function(){return _currentActiveMipmapLevel;};this.getRenderList=function(){return currentRenderList;};this.setRenderList=function(renderList){currentRenderList=renderList;};this.getRenderTarget=function(){return _currentRenderTarget;};this.setRenderTarget=function(renderTarget){var activeCubeFace=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;var activeMipmapLevel=arguments.length>2&&arguments[2]!==undefined?arguments[2]:0;_currentRenderTarget=renderTarget;_currentActiveCubeFace=activeCubeFace;_currentActiveMipmapLevel=activeMipmapLevel;if(renderTarget&&properties.get(renderTarget).__webglFramebuffer===undefined){textures.setupRenderTarget(renderTarget);}var framebuffer=_framebuffer;var isCube=false;if(renderTarget){var __webglFramebuffer=properties.get(renderTarget).__webglFramebuffer;if(renderTarget.isWebGLCubeRenderTarget){framebuffer=__webglFramebuffer[activeCubeFace];isCube=true;}else if(renderTarget.isWebGLMultisampleRenderTarget){framebuffer=properties.get(renderTarget).__webglMultisampledFramebuffer;}else {framebuffer=__webglFramebuffer;}_currentViewport.copy(renderTarget.viewport);_currentScissor.copy(renderTarget.scissor);_currentScissorTest=renderTarget.scissorTest;}else {_currentViewport.copy(_viewport).multiplyScalar(_pixelRatio).floor();_currentScissor.copy(_scissor).multiplyScalar(_pixelRatio).floor();_currentScissorTest=_scissorTest;}if(_currentFramebuffer!==framebuffer){_gl.bindFramebuffer(36160,framebuffer);_currentFramebuffer=framebuffer;}state.viewport(_currentViewport);state.scissor(_currentScissor);state.setScissorTest(_currentScissorTest);if(isCube){var textureProperties=properties.get(renderTarget.texture);_gl.framebufferTexture2D(36160,36064,34069+activeCubeFace,textureProperties.__webglTexture,activeMipmapLevel);}};this.readRenderTargetPixels=function(renderTarget,x,y,width,height,buffer,activeCubeFaceIndex){if(!(renderTarget&&renderTarget.isWebGLRenderTarget)){console.error('THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not THREE.WebGLRenderTarget.');return;}var framebuffer=properties.get(renderTarget).__webglFramebuffer;if(renderTarget.isWebGLCubeRenderTarget&&activeCubeFaceIndex!==undefined){framebuffer=framebuffer[activeCubeFaceIndex];}if(framebuffer){var restore=false;if(framebuffer!==_currentFramebuffer){_gl.bindFramebuffer(36160,framebuffer);restore=true;}try{var texture=renderTarget.texture;var textureFormat=texture.format;var textureType=texture.type;if(textureFormat!==RGBAFormat&&utils.convert(textureFormat)!==_gl.getParameter(35739)){console.error('THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in RGBA or implementation defined format.');return;}if(textureType!==UnsignedByteType&&utils.convert(textureType)!==_gl.getParameter(35738)&&// IE11, Edge and Chrome Mac < 52 (#9513)
!(textureType===FloatType&&(capabilities.isWebGL2||extensions.get('OES_texture_float')||extensions.get('WEBGL_color_buffer_float')))&&// Chrome Mac >= 52 and Firefox
!(textureType===HalfFloatType&&(capabilities.isWebGL2?extensions.get('EXT_color_buffer_float'):extensions.get('EXT_color_buffer_half_float')))){console.error('THREE.WebGLRenderer.readRenderTargetPixels: renderTarget is not in UnsignedByteType or implementation defined type.');return;}if(_gl.checkFramebufferStatus(36160)===36053){// the following if statement ensures valid read requests (no out-of-bounds pixels, see #8604)
if(x>=0&&x<=renderTarget.width-width&&y>=0&&y<=renderTarget.height-height){_gl.readPixels(x,y,width,height,utils.convert(textureFormat),utils.convert(textureType),buffer);}}else {console.error('THREE.WebGLRenderer.readRenderTargetPixels: readPixels from renderTarget failed. Framebuffer not complete.');}}finally{if(restore){_gl.bindFramebuffer(36160,_currentFramebuffer);}}}};this.copyFramebufferToTexture=function(position,texture){var level=arguments.length>2&&arguments[2]!==undefined?arguments[2]:0;var levelScale=Math.pow(2,-level);var width=Math.floor(texture.image.width*levelScale);var height=Math.floor(texture.image.height*levelScale);var glFormat=utils.convert(texture.format);textures.setTexture2D(texture,0);_gl.copyTexImage2D(3553,level,glFormat,position.x,position.y,width,height,0);state.unbindTexture();};this.copyTextureToTexture=function(position,srcTexture,dstTexture){var level=arguments.length>3&&arguments[3]!==undefined?arguments[3]:0;var width=srcTexture.image.width;var height=srcTexture.image.height;var glFormat=utils.convert(dstTexture.format);var glType=utils.convert(dstTexture.type);textures.setTexture2D(dstTexture,0);// As another texture upload may have changed pixelStorei
// parameters, make sure they are correct for the dstTexture
_gl.pixelStorei(37440,dstTexture.flipY);_gl.pixelStorei(37441,dstTexture.premultiplyAlpha);_gl.pixelStorei(3317,dstTexture.unpackAlignment);if(srcTexture.isDataTexture){_gl.texSubImage2D(3553,level,position.x,position.y,width,height,glFormat,glType,srcTexture.image.data);}else {if(srcTexture.isCompressedTexture){_gl.compressedTexSubImage2D(3553,level,position.x,position.y,srcTexture.mipmaps[0].width,srcTexture.mipmaps[0].height,glFormat,srcTexture.mipmaps[0].data);}else {_gl.texSubImage2D(3553,level,position.x,position.y,glFormat,glType,srcTexture.image);}}// Generate mipmaps only when copying level 0
if(level===0&&dstTexture.generateMipmaps)_gl.generateMipmap(3553);state.unbindTexture();};this.initTexture=function(texture){textures.setTexture2D(texture,0);state.unbindTexture();};this.resetState=function(){state.reset();bindingStates.reset();};if(typeof __THREE_DEVTOOLS__!=='undefined'){__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent('observe',{detail:this}));// eslint-disable-line no-undef
}}function WebGL1Renderer(parameters){WebGLRenderer.call(this,parameters);}WebGL1Renderer.prototype=Object.assign(Object.create(WebGLRenderer.prototype),{constructor:WebGL1Renderer,isWebGL1Renderer:true});class Scene extends Object3D{constructor(){super();Object.defineProperty(this,'isScene',{value:true});this.type='Scene';this.background=null;this.environment=null;this.fog=null;this.overrideMaterial=null;this.autoUpdate=true;// checked by the renderer
if(typeof __THREE_DEVTOOLS__!=='undefined'){__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent('observe',{detail:this}));// eslint-disable-line no-undef
}}copy(source,recursive){super.copy(source,recursive);if(source.background!==null)this.background=source.background.clone();if(source.environment!==null)this.environment=source.environment.clone();if(source.fog!==null)this.fog=source.fog.clone();if(source.overrideMaterial!==null)this.overrideMaterial=source.overrideMaterial.clone();this.autoUpdate=source.autoUpdate;this.matrixAutoUpdate=source.matrixAutoUpdate;return this;}toJSON(meta){var data=super.toJSON(meta);if(this.background!==null)data.object.background=this.background.toJSON(meta);if(this.environment!==null)data.object.environment=this.environment.toJSON(meta);if(this.fog!==null)data.object.fog=this.fog.toJSON();return data;}}function InterleavedBuffer(array,stride){this.array=array;this.stride=stride;this.count=array!==undefined?array.length/stride:0;this.usage=StaticDrawUsage;this.updateRange={offset:0,count:-1};this.version=0;this.uuid=MathUtils.generateUUID();}Object.defineProperty(InterleavedBuffer.prototype,'needsUpdate',{set:function set(value){if(value===true)this.version++;}});Object.assign(InterleavedBuffer.prototype,{isInterleavedBuffer:true,onUploadCallback:function onUploadCallback(){},setUsage:function setUsage(value){this.usage=value;return this;},copy:function copy(source){this.array=new source.array.constructor(source.array);this.count=source.count;this.stride=source.stride;this.usage=source.usage;return this;},copyAt:function copyAt(index1,attribute,index2){index1*=this.stride;index2*=attribute.stride;for(var _i129=0,l=this.stride;_i129<l;_i129++){this.array[index1+_i129]=attribute.array[index2+_i129];}return this;},set:function set(value){var offset=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;this.array.set(value,offset);return this;},clone:function clone(data){if(data.arrayBuffers===undefined){data.arrayBuffers={};}if(this.array.buffer._uuid===undefined){this.array.buffer._uuid=MathUtils.generateUUID();}if(data.arrayBuffers[this.array.buffer._uuid]===undefined){data.arrayBuffers[this.array.buffer._uuid]=this.array.slice(0).buffer;}var array=new this.array.constructor(data.arrayBuffers[this.array.buffer._uuid]);var ib=new InterleavedBuffer(array,this.stride);ib.setUsage(this.usage);return ib;},onUpload:function onUpload(callback){this.onUploadCallback=callback;return this;},toJSON:function toJSON(data){if(data.arrayBuffers===undefined){data.arrayBuffers={};}// generate UUID for array buffer if necessary
if(this.array.buffer._uuid===undefined){this.array.buffer._uuid=MathUtils.generateUUID();}if(data.arrayBuffers[this.array.buffer._uuid]===undefined){data.arrayBuffers[this.array.buffer._uuid]=Array.prototype.slice.call(new Uint32Array(this.array.buffer));}//
return {uuid:this.uuid,buffer:this.array.buffer._uuid,type:this.array.constructor.name,stride:this.stride};}});var _vector$6=new Vector3();function InterleavedBufferAttribute(interleavedBuffer,itemSize,offset,normalized){this.name='';this.data=interleavedBuffer;this.itemSize=itemSize;this.offset=offset;this.normalized=normalized===true;}Object.defineProperties(InterleavedBufferAttribute.prototype,{count:{get:function get(){return this.data.count;}},array:{get:function get(){return this.data.array;}},needsUpdate:{set:function set(value){this.data.needsUpdate=value;}}});Object.assign(InterleavedBufferAttribute.prototype,{isInterleavedBufferAttribute:true,applyMatrix4:function applyMatrix4(m){for(var _i130=0,l=this.data.count;_i130<l;_i130++){_vector$6.x=this.getX(_i130);_vector$6.y=this.getY(_i130);_vector$6.z=this.getZ(_i130);_vector$6.applyMatrix4(m);this.setXYZ(_i130,_vector$6.x,_vector$6.y,_vector$6.z);}return this;},setX:function setX(index,x){this.data.array[index*this.data.stride+this.offset]=x;return this;},setY:function setY(index,y){this.data.array[index*this.data.stride+this.offset+1]=y;return this;},setZ:function setZ(index,z){this.data.array[index*this.data.stride+this.offset+2]=z;return this;},setW:function setW(index,w){this.data.array[index*this.data.stride+this.offset+3]=w;return this;},getX:function getX(index){return this.data.array[index*this.data.stride+this.offset];},getY:function getY(index){return this.data.array[index*this.data.stride+this.offset+1];},getZ:function getZ(index){return this.data.array[index*this.data.stride+this.offset+2];},getW:function getW(index){return this.data.array[index*this.data.stride+this.offset+3];},setXY:function setXY(index,x,y){index=index*this.data.stride+this.offset;this.data.array[index+0]=x;this.data.array[index+1]=y;return this;},setXYZ:function setXYZ(index,x,y,z){index=index*this.data.stride+this.offset;this.data.array[index+0]=x;this.data.array[index+1]=y;this.data.array[index+2]=z;return this;},setXYZW:function setXYZW(index,x,y,z,w){index=index*this.data.stride+this.offset;this.data.array[index+0]=x;this.data.array[index+1]=y;this.data.array[index+2]=z;this.data.array[index+3]=w;return this;},clone:function clone(data){if(data===undefined){console.log('THREE.InterleavedBufferAttribute.clone(): Cloning an interlaved buffer attribute will deinterleave buffer data.');var array=[];for(var _i131=0;_i131<this.count;_i131++){var index=_i131*this.data.stride+this.offset;for(var j=0;j<this.itemSize;j++){array.push(this.data.array[index+j]);}}return new BufferAttribute(new this.array.constructor(array),this.itemSize,this.normalized);}else {if(data.interleavedBuffers===undefined){data.interleavedBuffers={};}if(data.interleavedBuffers[this.data.uuid]===undefined){data.interleavedBuffers[this.data.uuid]=this.data.clone(data);}return new InterleavedBufferAttribute(data.interleavedBuffers[this.data.uuid],this.itemSize,this.offset,this.normalized);}},toJSON:function toJSON(data){if(data===undefined){console.log('THREE.InterleavedBufferAttribute.toJSON(): Serializing an interlaved buffer attribute will deinterleave buffer data.');var array=[];for(var _i132=0;_i132<this.count;_i132++){var index=_i132*this.data.stride+this.offset;for(var j=0;j<this.itemSize;j++){array.push(this.data.array[index+j]);}}// deinterleave data and save it as an ordinary buffer attribute for now
return {itemSize:this.itemSize,type:this.array.constructor.name,array:array,normalized:this.normalized};}else {// save as true interlaved attribtue
if(data.interleavedBuffers===undefined){data.interleavedBuffers={};}if(data.interleavedBuffers[this.data.uuid]===undefined){data.interleavedBuffers[this.data.uuid]=this.data.toJSON(data);}return {isInterleavedBufferAttribute:true,itemSize:this.itemSize,data:this.data.uuid,offset:this.offset,normalized:this.normalized};}}});/**
 * parameters = {
 *  color: <hex>,
 *  map: new THREE.Texture( <Image> ),
 *  alphaMap: new THREE.Texture( <Image> ),
 *  rotation: <float>,
 *  sizeAttenuation: <bool>
 * }
 */function SpriteMaterial(parameters){Material.call(this);this.type='SpriteMaterial';this.color=new Color(0xffffff);this.map=null;this.alphaMap=null;this.rotation=0;this.sizeAttenuation=true;this.transparent=true;this.setValues(parameters);}SpriteMaterial.prototype=Object.create(Material.prototype);SpriteMaterial.prototype.constructor=SpriteMaterial;SpriteMaterial.prototype.isSpriteMaterial=true;SpriteMaterial.prototype.copy=function(source){Material.prototype.copy.call(this,source);this.color.copy(source.color);this.map=source.map;this.alphaMap=source.alphaMap;this.rotation=source.rotation;this.sizeAttenuation=source.sizeAttenuation;return this;};var _geometry;var _intersectPoint=new Vector3();var _worldScale=new Vector3();var _mvPosition=new Vector3();var _alignedPosition=new Vector2();var _rotatedPosition=new Vector2();var _viewWorldMatrix=new Matrix4();var _vA$1=new Vector3();var _vB$1=new Vector3();var _vC$1=new Vector3();var _uvA$1=new Vector2();var _uvB$1=new Vector2();var _uvC$1=new Vector2();function Sprite(material){Object3D.call(this);this.type='Sprite';if(_geometry===undefined){_geometry=new BufferGeometry();var float32Array=new Float32Array([-0.5,-0.5,0,0,0,0.5,-0.5,0,1,0,0.5,0.5,0,1,1,-0.5,0.5,0,0,1]);var interleavedBuffer=new InterleavedBuffer(float32Array,5);_geometry.setIndex([0,1,2,0,2,3]);_geometry.setAttribute('position',new InterleavedBufferAttribute(interleavedBuffer,3,0,false));_geometry.setAttribute('uv',new InterleavedBufferAttribute(interleavedBuffer,2,3,false));}this.geometry=_geometry;this.material=material!==undefined?material:new SpriteMaterial();this.center=new Vector2(0.5,0.5);}Sprite.prototype=Object.assign(Object.create(Object3D.prototype),{constructor:Sprite,isSprite:true,raycast:function raycast(raycaster,intersects){if(raycaster.camera===null){console.error('THREE.Sprite: "Raycaster.camera" needs to be set in order to raycast against sprites.');}_worldScale.setFromMatrixScale(this.matrixWorld);_viewWorldMatrix.copy(raycaster.camera.matrixWorld);this.modelViewMatrix.multiplyMatrices(raycaster.camera.matrixWorldInverse,this.matrixWorld);_mvPosition.setFromMatrixPosition(this.modelViewMatrix);if(raycaster.camera.isPerspectiveCamera&&this.material.sizeAttenuation===false){_worldScale.multiplyScalar(-_mvPosition.z);}var rotation=this.material.rotation;var sin,cos;if(rotation!==0){cos=Math.cos(rotation);sin=Math.sin(rotation);}var center=this.center;transformVertex(_vA$1.set(-0.5,-0.5,0),_mvPosition,center,_worldScale,sin,cos);transformVertex(_vB$1.set(0.5,-0.5,0),_mvPosition,center,_worldScale,sin,cos);transformVertex(_vC$1.set(0.5,0.5,0),_mvPosition,center,_worldScale,sin,cos);_uvA$1.set(0,0);_uvB$1.set(1,0);_uvC$1.set(1,1);// check first triangle
var intersect=raycaster.ray.intersectTriangle(_vA$1,_vB$1,_vC$1,false,_intersectPoint);if(intersect===null){// check second triangle
transformVertex(_vB$1.set(-0.5,0.5,0),_mvPosition,center,_worldScale,sin,cos);_uvB$1.set(0,1);intersect=raycaster.ray.intersectTriangle(_vA$1,_vC$1,_vB$1,false,_intersectPoint);if(intersect===null){return;}}var distance=raycaster.ray.origin.distanceTo(_intersectPoint);if(distance<raycaster.near||distance>raycaster.far)return;intersects.push({distance:distance,point:_intersectPoint.clone(),uv:Triangle.getUV(_intersectPoint,_vA$1,_vB$1,_vC$1,_uvA$1,_uvB$1,_uvC$1,new Vector2()),face:null,object:this});},copy:function copy(source){Object3D.prototype.copy.call(this,source);if(source.center!==undefined)this.center.copy(source.center);this.material=source.material;return this;}});function transformVertex(vertexPosition,mvPosition,center,scale,sin,cos){// compute position in camera space
_alignedPosition.subVectors(vertexPosition,center).addScalar(0.5).multiply(scale);// to check if rotation is not zero
if(sin!==undefined){_rotatedPosition.x=cos*_alignedPosition.x-sin*_alignedPosition.y;_rotatedPosition.y=sin*_alignedPosition.x+cos*_alignedPosition.y;}else {_rotatedPosition.copy(_alignedPosition);}vertexPosition.copy(mvPosition);vertexPosition.x+=_rotatedPosition.x;vertexPosition.y+=_rotatedPosition.y;// transform to world space
vertexPosition.applyMatrix4(_viewWorldMatrix);}var _v1$4=new Vector3();var _v2$2=new Vector3();function LOD(){Object3D.call(this);this._currentLevel=0;this.type='LOD';Object.defineProperties(this,{levels:{enumerable:true,value:[]}});this.autoUpdate=true;}LOD.prototype=Object.assign(Object.create(Object3D.prototype),{constructor:LOD,isLOD:true,copy:function copy(source){Object3D.prototype.copy.call(this,source,false);var levels=source.levels;for(var _i133=0,l=levels.length;_i133<l;_i133++){var level=levels[_i133];this.addLevel(level.object.clone(),level.distance);}this.autoUpdate=source.autoUpdate;return this;},addLevel:function addLevel(object){var distance=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;distance=Math.abs(distance);var levels=this.levels;var l;for(l=0;l<levels.length;l++){if(distance<levels[l].distance){break;}}levels.splice(l,0,{distance:distance,object:object});this.add(object);return this;},getCurrentLevel:function getCurrentLevel(){return this._currentLevel;},getObjectForDistance:function getObjectForDistance(distance){var levels=this.levels;if(levels.length>0){var _i134,l;for(_i134=1,l=levels.length;_i134<l;_i134++){if(distance<levels[_i134].distance){break;}}return levels[_i134-1].object;}return null;},raycast:function raycast(raycaster,intersects){var levels=this.levels;if(levels.length>0){_v1$4.setFromMatrixPosition(this.matrixWorld);var distance=raycaster.ray.origin.distanceTo(_v1$4);this.getObjectForDistance(distance).raycast(raycaster,intersects);}},update:function update(camera){var levels=this.levels;if(levels.length>1){_v1$4.setFromMatrixPosition(camera.matrixWorld);_v2$2.setFromMatrixPosition(this.matrixWorld);var distance=_v1$4.distanceTo(_v2$2)/camera.zoom;levels[0].object.visible=true;var _i135,l;for(_i135=1,l=levels.length;_i135<l;_i135++){if(distance>=levels[_i135].distance){levels[_i135-1].object.visible=false;levels[_i135].object.visible=true;}else {break;}}this._currentLevel=_i135-1;for(;_i135<l;_i135++){levels[_i135].object.visible=false;}}},toJSON:function toJSON(meta){var data=Object3D.prototype.toJSON.call(this,meta);if(this.autoUpdate===false)data.object.autoUpdate=false;data.object.levels=[];var levels=this.levels;for(var _i136=0,l=levels.length;_i136<l;_i136++){var level=levels[_i136];data.object.levels.push({object:level.object.uuid,distance:level.distance});}return data;}});var _basePosition=new Vector3();var _skinIndex=new Vector4();var _skinWeight=new Vector4();var _vector$7=new Vector3();var _matrix$1=new Matrix4();function SkinnedMesh(geometry,material){if(geometry&&geometry.isGeometry){console.error('THREE.SkinnedMesh no longer supports THREE.Geometry. Use THREE.BufferGeometry instead.');}Mesh.call(this,geometry,material);this.type='SkinnedMesh';this.bindMode='attached';this.bindMatrix=new Matrix4();this.bindMatrixInverse=new Matrix4();}SkinnedMesh.prototype=Object.assign(Object.create(Mesh.prototype),{constructor:SkinnedMesh,isSkinnedMesh:true,copy:function copy(source){Mesh.prototype.copy.call(this,source);this.bindMode=source.bindMode;this.bindMatrix.copy(source.bindMatrix);this.bindMatrixInverse.copy(source.bindMatrixInverse);this.skeleton=source.skeleton;return this;},bind:function bind(skeleton,bindMatrix){this.skeleton=skeleton;if(bindMatrix===undefined){this.updateMatrixWorld(true);this.skeleton.calculateInverses();bindMatrix=this.matrixWorld;}this.bindMatrix.copy(bindMatrix);this.bindMatrixInverse.copy(bindMatrix).invert();},pose:function pose(){this.skeleton.pose();},normalizeSkinWeights:function normalizeSkinWeights(){var vector=new Vector4();var skinWeight=this.geometry.attributes.skinWeight;for(var _i137=0,l=skinWeight.count;_i137<l;_i137++){vector.x=skinWeight.getX(_i137);vector.y=skinWeight.getY(_i137);vector.z=skinWeight.getZ(_i137);vector.w=skinWeight.getW(_i137);var scale=1.0/vector.manhattanLength();if(scale!==Infinity){vector.multiplyScalar(scale);}else {vector.set(1,0,0,0);// do something reasonable
}skinWeight.setXYZW(_i137,vector.x,vector.y,vector.z,vector.w);}},updateMatrixWorld:function updateMatrixWorld(force){Mesh.prototype.updateMatrixWorld.call(this,force);if(this.bindMode==='attached'){this.bindMatrixInverse.copy(this.matrixWorld).invert();}else if(this.bindMode==='detached'){this.bindMatrixInverse.copy(this.bindMatrix).invert();}else {console.warn('THREE.SkinnedMesh: Unrecognized bindMode: '+this.bindMode);}},boneTransform:function boneTransform(index,target){var skeleton=this.skeleton;var geometry=this.geometry;_skinIndex.fromBufferAttribute(geometry.attributes.skinIndex,index);_skinWeight.fromBufferAttribute(geometry.attributes.skinWeight,index);_basePosition.fromBufferAttribute(geometry.attributes.position,index).applyMatrix4(this.bindMatrix);target.set(0,0,0);for(var _i138=0;_i138<4;_i138++){var weight=_skinWeight.getComponent(_i138);if(weight!==0){var boneIndex=_skinIndex.getComponent(_i138);_matrix$1.multiplyMatrices(skeleton.bones[boneIndex].matrixWorld,skeleton.boneInverses[boneIndex]);target.addScaledVector(_vector$7.copy(_basePosition).applyMatrix4(_matrix$1),weight);}}return target.applyMatrix4(this.bindMatrixInverse);}});function Bone(){Object3D.call(this);this.type='Bone';}Bone.prototype=Object.assign(Object.create(Object3D.prototype),{constructor:Bone,isBone:true});var _offsetMatrix=new Matrix4();var _identityMatrix=new Matrix4();function Skeleton(){var bones=arguments.length>0&&arguments[0]!==undefined?arguments[0]:[];var boneInverses=arguments.length>1&&arguments[1]!==undefined?arguments[1]:[];this.uuid=MathUtils.generateUUID();this.bones=bones.slice(0);this.boneInverses=boneInverses;this.boneMatrices=null;this.boneTexture=null;this.boneTextureSize=0;this.frame=-1;this.init();}Object.assign(Skeleton.prototype,{init:function init(){var bones=this.bones;var boneInverses=this.boneInverses;this.boneMatrices=new Float32Array(bones.length*16);// calculate inverse bone matrices if necessary
if(boneInverses.length===0){this.calculateInverses();}else {// handle special case
if(bones.length!==boneInverses.length){console.warn('THREE.Skeleton: Number of inverse bone matrices does not match amount of bones.');this.boneInverses=[];for(var _i139=0,il=this.bones.length;_i139<il;_i139++){this.boneInverses.push(new Matrix4());}}}},calculateInverses:function calculateInverses(){this.boneInverses.length=0;for(var _i140=0,il=this.bones.length;_i140<il;_i140++){var inverse=new Matrix4();if(this.bones[_i140]){inverse.copy(this.bones[_i140].matrixWorld).invert();}this.boneInverses.push(inverse);}},pose:function pose(){// recover the bind-time world matrices
for(var _i141=0,il=this.bones.length;_i141<il;_i141++){var bone=this.bones[_i141];if(bone){bone.matrixWorld.copy(this.boneInverses[_i141]).invert();}}// compute the local matrices, positions, rotations and scales
for(var _i142=0,_il11=this.bones.length;_i142<_il11;_i142++){var _bone=this.bones[_i142];if(_bone){if(_bone.parent&&_bone.parent.isBone){_bone.matrix.copy(_bone.parent.matrixWorld).invert();_bone.matrix.multiply(_bone.matrixWorld);}else {_bone.matrix.copy(_bone.matrixWorld);}_bone.matrix.decompose(_bone.position,_bone.quaternion,_bone.scale);}}},update:function update(){var bones=this.bones;var boneInverses=this.boneInverses;var boneMatrices=this.boneMatrices;var boneTexture=this.boneTexture;// flatten bone matrices to array
for(var _i143=0,il=bones.length;_i143<il;_i143++){// compute the offset between the current and the original transform
var matrix=bones[_i143]?bones[_i143].matrixWorld:_identityMatrix;_offsetMatrix.multiplyMatrices(matrix,boneInverses[_i143]);_offsetMatrix.toArray(boneMatrices,_i143*16);}if(boneTexture!==null){boneTexture.needsUpdate=true;}},clone:function clone(){return new Skeleton(this.bones,this.boneInverses);},getBoneByName:function getBoneByName(name){for(var _i144=0,il=this.bones.length;_i144<il;_i144++){var bone=this.bones[_i144];if(bone.name===name){return bone;}}return undefined;},dispose:function dispose(){if(this.boneTexture!==null){this.boneTexture.dispose();this.boneTexture=null;}},fromJSON:function fromJSON(json,bones){this.uuid=json.uuid;for(var _i145=0,l=json.bones.length;_i145<l;_i145++){var uuid=json.bones[_i145];var bone=bones[uuid];if(bone===undefined){console.warn('THREE.Skeleton: No bone found with UUID:',uuid);bone=new Bone();}this.bones.push(bone);this.boneInverses.push(new Matrix4().fromArray(json.boneInverses[_i145]));}this.init();return this;},toJSON:function toJSON(){var data={metadata:{version:4.5,type:'Skeleton',generator:'Skeleton.toJSON'},bones:[],boneInverses:[]};data.uuid=this.uuid;var bones=this.bones;var boneInverses=this.boneInverses;for(var _i146=0,l=bones.length;_i146<l;_i146++){var bone=bones[_i146];data.bones.push(bone.uuid);var boneInverse=boneInverses[_i146];data.boneInverses.push(boneInverse.toArray());}return data;}});var _instanceLocalMatrix=new Matrix4();var _instanceWorldMatrix=new Matrix4();var _instanceIntersects=[];var _mesh=new Mesh();function InstancedMesh(geometry,material,count){Mesh.call(this,geometry,material);this.instanceMatrix=new BufferAttribute(new Float32Array(count*16),16);this.instanceColor=null;this.count=count;this.frustumCulled=false;}InstancedMesh.prototype=Object.assign(Object.create(Mesh.prototype),{constructor:InstancedMesh,isInstancedMesh:true,copy:function copy(source){Mesh.prototype.copy.call(this,source);this.instanceMatrix.copy(source.instanceMatrix);this.count=source.count;return this;},getColorAt:function getColorAt(index,color){color.fromArray(this.instanceColor.array,index*3);},getMatrixAt:function getMatrixAt(index,matrix){matrix.fromArray(this.instanceMatrix.array,index*16);},raycast:function raycast(raycaster,intersects){var matrixWorld=this.matrixWorld;var raycastTimes=this.count;_mesh.geometry=this.geometry;_mesh.material=this.material;if(_mesh.material===undefined)return;for(var instanceId=0;instanceId<raycastTimes;instanceId++){// calculate the world matrix for each instance
this.getMatrixAt(instanceId,_instanceLocalMatrix);_instanceWorldMatrix.multiplyMatrices(matrixWorld,_instanceLocalMatrix);// the mesh represents this single instance
_mesh.matrixWorld=_instanceWorldMatrix;_mesh.raycast(raycaster,_instanceIntersects);// process the result of raycast
for(var _i147=0,l=_instanceIntersects.length;_i147<l;_i147++){var intersect=_instanceIntersects[_i147];intersect.instanceId=instanceId;intersect.object=this;intersects.push(intersect);}_instanceIntersects.length=0;}},setColorAt:function setColorAt(index,color){if(this.instanceColor===null){this.instanceColor=new BufferAttribute(new Float32Array(this.count*3),3);}color.toArray(this.instanceColor.array,index*3);},setMatrixAt:function setMatrixAt(index,matrix){matrix.toArray(this.instanceMatrix.array,index*16);},updateMorphTargets:function updateMorphTargets(){},dispose:function dispose(){this.dispatchEvent({type:'dispose'});}});/**
 * parameters = {
 *  color: <hex>,
 *  opacity: <float>,
 *
 *  linewidth: <float>,
 *  linecap: "round",
 *  linejoin: "round"
 * }
 */function LineBasicMaterial(parameters){Material.call(this);this.type='LineBasicMaterial';this.color=new Color(0xffffff);this.linewidth=1;this.linecap='round';this.linejoin='round';this.morphTargets=false;this.setValues(parameters);}LineBasicMaterial.prototype=Object.create(Material.prototype);LineBasicMaterial.prototype.constructor=LineBasicMaterial;LineBasicMaterial.prototype.isLineBasicMaterial=true;LineBasicMaterial.prototype.copy=function(source){Material.prototype.copy.call(this,source);this.color.copy(source.color);this.linewidth=source.linewidth;this.linecap=source.linecap;this.linejoin=source.linejoin;this.morphTargets=source.morphTargets;return this;};var _start=new Vector3();var _end=new Vector3();var _inverseMatrix$1=new Matrix4();var _ray$1=new Ray();var _sphere$2=new Sphere();function Line(){var geometry=arguments.length>0&&arguments[0]!==undefined?arguments[0]:new BufferGeometry();var material=arguments.length>1&&arguments[1]!==undefined?arguments[1]:new LineBasicMaterial();Object3D.call(this);this.type='Line';this.geometry=geometry;this.material=material;this.updateMorphTargets();}Line.prototype=Object.assign(Object.create(Object3D.prototype),{constructor:Line,isLine:true,copy:function copy(source){Object3D.prototype.copy.call(this,source);this.material=source.material;this.geometry=source.geometry;return this;},computeLineDistances:function computeLineDistances(){var geometry=this.geometry;if(geometry.isBufferGeometry){// we assume non-indexed geometry
if(geometry.index===null){var positionAttribute=geometry.attributes.position;var lineDistances=[0];for(var _i148=1,l=positionAttribute.count;_i148<l;_i148++){_start.fromBufferAttribute(positionAttribute,_i148-1);_end.fromBufferAttribute(positionAttribute,_i148);lineDistances[_i148]=lineDistances[_i148-1];lineDistances[_i148]+=_start.distanceTo(_end);}geometry.setAttribute('lineDistance',new Float32BufferAttribute(lineDistances,1));}else {console.warn('THREE.Line.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.');}}else if(geometry.isGeometry){var vertices=geometry.vertices;var _lineDistances=geometry.lineDistances;_lineDistances[0]=0;for(var _i149=1,_l6=vertices.length;_i149<_l6;_i149++){_lineDistances[_i149]=_lineDistances[_i149-1];_lineDistances[_i149]+=vertices[_i149-1].distanceTo(vertices[_i149]);}}return this;},raycast:function raycast(raycaster,intersects){var geometry=this.geometry;var matrixWorld=this.matrixWorld;var threshold=raycaster.params.Line.threshold;// Checking boundingSphere distance to ray
if(geometry.boundingSphere===null)geometry.computeBoundingSphere();_sphere$2.copy(geometry.boundingSphere);_sphere$2.applyMatrix4(matrixWorld);_sphere$2.radius+=threshold;if(raycaster.ray.intersectsSphere(_sphere$2)===false)return;//
_inverseMatrix$1.copy(matrixWorld).invert();_ray$1.copy(raycaster.ray).applyMatrix4(_inverseMatrix$1);var localThreshold=threshold/((this.scale.x+this.scale.y+this.scale.z)/3);var localThresholdSq=localThreshold*localThreshold;var vStart=new Vector3();var vEnd=new Vector3();var interSegment=new Vector3();var interRay=new Vector3();var step=this.isLineSegments?2:1;if(geometry.isBufferGeometry){var index=geometry.index;var attributes=geometry.attributes;var positionAttribute=attributes.position;if(index!==null){var indices=index.array;for(var _i150=0,l=indices.length-1;_i150<l;_i150+=step){var a=indices[_i150];var b=indices[_i150+1];vStart.fromBufferAttribute(positionAttribute,a);vEnd.fromBufferAttribute(positionAttribute,b);var distSq=_ray$1.distanceSqToSegment(vStart,vEnd,interRay,interSegment);if(distSq>localThresholdSq)continue;interRay.applyMatrix4(this.matrixWorld);//Move back to world space for distance calculation
var distance=raycaster.ray.origin.distanceTo(interRay);if(distance<raycaster.near||distance>raycaster.far)continue;intersects.push({distance:distance,// What do we want? intersection point on the ray or on the segment??
// point: raycaster.ray.at( distance ),
point:interSegment.clone().applyMatrix4(this.matrixWorld),index:_i150,face:null,faceIndex:null,object:this});}}else {for(var _i151=0,_l7=positionAttribute.count-1;_i151<_l7;_i151+=step){vStart.fromBufferAttribute(positionAttribute,_i151);vEnd.fromBufferAttribute(positionAttribute,_i151+1);var _distSq=_ray$1.distanceSqToSegment(vStart,vEnd,interRay,interSegment);if(_distSq>localThresholdSq)continue;interRay.applyMatrix4(this.matrixWorld);//Move back to world space for distance calculation
var _distance=raycaster.ray.origin.distanceTo(interRay);if(_distance<raycaster.near||_distance>raycaster.far)continue;intersects.push({distance:_distance,// What do we want? intersection point on the ray or on the segment??
// point: raycaster.ray.at( distance ),
point:interSegment.clone().applyMatrix4(this.matrixWorld),index:_i151,face:null,faceIndex:null,object:this});}}}else if(geometry.isGeometry){var vertices=geometry.vertices;var nbVertices=vertices.length;for(var _i152=0;_i152<nbVertices-1;_i152+=step){var _distSq2=_ray$1.distanceSqToSegment(vertices[_i152],vertices[_i152+1],interRay,interSegment);if(_distSq2>localThresholdSq)continue;interRay.applyMatrix4(this.matrixWorld);//Move back to world space for distance calculation
var _distance2=raycaster.ray.origin.distanceTo(interRay);if(_distance2<raycaster.near||_distance2>raycaster.far)continue;intersects.push({distance:_distance2,// What do we want? intersection point on the ray or on the segment??
// point: raycaster.ray.at( distance ),
point:interSegment.clone().applyMatrix4(this.matrixWorld),index:_i152,face:null,faceIndex:null,object:this});}}},updateMorphTargets:function updateMorphTargets(){var geometry=this.geometry;if(geometry.isBufferGeometry){var morphAttributes=geometry.morphAttributes;var keys=Object.keys(morphAttributes);if(keys.length>0){var morphAttribute=morphAttributes[keys[0]];if(morphAttribute!==undefined){this.morphTargetInfluences=[];this.morphTargetDictionary={};for(var m=0,ml=morphAttribute.length;m<ml;m++){var name=morphAttribute[m].name||String(m);this.morphTargetInfluences.push(0);this.morphTargetDictionary[name]=m;}}}}else {var morphTargets=geometry.morphTargets;if(morphTargets!==undefined&&morphTargets.length>0){console.error('THREE.Line.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.');}}}});var _start$1=new Vector3();var _end$1=new Vector3();function LineSegments(geometry,material){Line.call(this,geometry,material);this.type='LineSegments';}LineSegments.prototype=Object.assign(Object.create(Line.prototype),{constructor:LineSegments,isLineSegments:true,computeLineDistances:function computeLineDistances(){var geometry=this.geometry;if(geometry.isBufferGeometry){// we assume non-indexed geometry
if(geometry.index===null){var positionAttribute=geometry.attributes.position;var lineDistances=[];for(var _i153=0,l=positionAttribute.count;_i153<l;_i153+=2){_start$1.fromBufferAttribute(positionAttribute,_i153);_end$1.fromBufferAttribute(positionAttribute,_i153+1);lineDistances[_i153]=_i153===0?0:lineDistances[_i153-1];lineDistances[_i153+1]=lineDistances[_i153]+_start$1.distanceTo(_end$1);}geometry.setAttribute('lineDistance',new Float32BufferAttribute(lineDistances,1));}else {console.warn('THREE.LineSegments.computeLineDistances(): Computation only possible with non-indexed BufferGeometry.');}}else if(geometry.isGeometry){var vertices=geometry.vertices;var _lineDistances2=geometry.lineDistances;for(var _i154=0,_l8=vertices.length;_i154<_l8;_i154+=2){_start$1.copy(vertices[_i154]);_end$1.copy(vertices[_i154+1]);_lineDistances2[_i154]=_i154===0?0:_lineDistances2[_i154-1];_lineDistances2[_i154+1]=_lineDistances2[_i154]+_start$1.distanceTo(_end$1);}}return this;}});function LineLoop(geometry,material){Line.call(this,geometry,material);this.type='LineLoop';}LineLoop.prototype=Object.assign(Object.create(Line.prototype),{constructor:LineLoop,isLineLoop:true});/**
 * parameters = {
 *  color: <hex>,
 *  opacity: <float>,
 *  map: new THREE.Texture( <Image> ),
 *  alphaMap: new THREE.Texture( <Image> ),
 *
 *  size: <float>,
 *  sizeAttenuation: <bool>
 *
 *  morphTargets: <bool>
 * }
 */function PointsMaterial(parameters){Material.call(this);this.type='PointsMaterial';this.color=new Color(0xffffff);this.map=null;this.alphaMap=null;this.size=1;this.sizeAttenuation=true;this.morphTargets=false;this.setValues(parameters);}PointsMaterial.prototype=Object.create(Material.prototype);PointsMaterial.prototype.constructor=PointsMaterial;PointsMaterial.prototype.isPointsMaterial=true;PointsMaterial.prototype.copy=function(source){Material.prototype.copy.call(this,source);this.color.copy(source.color);this.map=source.map;this.alphaMap=source.alphaMap;this.size=source.size;this.sizeAttenuation=source.sizeAttenuation;this.morphTargets=source.morphTargets;return this;};var _inverseMatrix$2=new Matrix4();var _ray$2=new Ray();var _sphere$3=new Sphere();var _position$1=new Vector3();function Points(){var geometry=arguments.length>0&&arguments[0]!==undefined?arguments[0]:new BufferGeometry();var material=arguments.length>1&&arguments[1]!==undefined?arguments[1]:new PointsMaterial();Object3D.call(this);this.type='Points';this.geometry=geometry;this.material=material;this.updateMorphTargets();}Points.prototype=Object.assign(Object.create(Object3D.prototype),{constructor:Points,isPoints:true,copy:function copy(source){Object3D.prototype.copy.call(this,source);this.material=source.material;this.geometry=source.geometry;return this;},raycast:function raycast(raycaster,intersects){var geometry=this.geometry;var matrixWorld=this.matrixWorld;var threshold=raycaster.params.Points.threshold;// Checking boundingSphere distance to ray
if(geometry.boundingSphere===null)geometry.computeBoundingSphere();_sphere$3.copy(geometry.boundingSphere);_sphere$3.applyMatrix4(matrixWorld);_sphere$3.radius+=threshold;if(raycaster.ray.intersectsSphere(_sphere$3)===false)return;//
_inverseMatrix$2.copy(matrixWorld).invert();_ray$2.copy(raycaster.ray).applyMatrix4(_inverseMatrix$2);var localThreshold=threshold/((this.scale.x+this.scale.y+this.scale.z)/3);var localThresholdSq=localThreshold*localThreshold;if(geometry.isBufferGeometry){var index=geometry.index;var attributes=geometry.attributes;var positionAttribute=attributes.position;if(index!==null){var indices=index.array;for(var _i155=0,il=indices.length;_i155<il;_i155++){var a=indices[_i155];_position$1.fromBufferAttribute(positionAttribute,a);testPoint(_position$1,a,localThresholdSq,matrixWorld,raycaster,intersects,this);}}else {for(var _i156=0,l=positionAttribute.count;_i156<l;_i156++){_position$1.fromBufferAttribute(positionAttribute,_i156);testPoint(_position$1,_i156,localThresholdSq,matrixWorld,raycaster,intersects,this);}}}else {var vertices=geometry.vertices;for(var _i157=0,_l9=vertices.length;_i157<_l9;_i157++){testPoint(vertices[_i157],_i157,localThresholdSq,matrixWorld,raycaster,intersects,this);}}},updateMorphTargets:function updateMorphTargets(){var geometry=this.geometry;if(geometry.isBufferGeometry){var morphAttributes=geometry.morphAttributes;var keys=Object.keys(morphAttributes);if(keys.length>0){var morphAttribute=morphAttributes[keys[0]];if(morphAttribute!==undefined){this.morphTargetInfluences=[];this.morphTargetDictionary={};for(var m=0,ml=morphAttribute.length;m<ml;m++){var name=morphAttribute[m].name||String(m);this.morphTargetInfluences.push(0);this.morphTargetDictionary[name]=m;}}}}else {var morphTargets=geometry.morphTargets;if(morphTargets!==undefined&&morphTargets.length>0){console.error('THREE.Points.updateMorphTargets() does not support THREE.Geometry. Use THREE.BufferGeometry instead.');}}}});function testPoint(point,index,localThresholdSq,matrixWorld,raycaster,intersects,object){var rayPointDistanceSq=_ray$2.distanceSqToPoint(point);if(rayPointDistanceSq<localThresholdSq){var intersectPoint=new Vector3();_ray$2.closestPointToPoint(point,intersectPoint);intersectPoint.applyMatrix4(matrixWorld);var distance=raycaster.ray.origin.distanceTo(intersectPoint);if(distance<raycaster.near||distance>raycaster.far)return;intersects.push({distance:distance,distanceToRay:Math.sqrt(rayPointDistanceSq),point:intersectPoint,index:index,face:null,object:object});}}function VideoTexture(video,mapping,wrapS,wrapT,magFilter,minFilter,format,type,anisotropy){Texture.call(this,video,mapping,wrapS,wrapT,magFilter,minFilter,format,type,anisotropy);this.format=format!==undefined?format:RGBFormat;this.minFilter=minFilter!==undefined?minFilter:LinearFilter;this.magFilter=magFilter!==undefined?magFilter:LinearFilter;this.generateMipmaps=false;var scope=this;function updateVideo(){scope.needsUpdate=true;video.requestVideoFrameCallback(updateVideo);}if('requestVideoFrameCallback'in video){video.requestVideoFrameCallback(updateVideo);}}VideoTexture.prototype=Object.assign(Object.create(Texture.prototype),{constructor:VideoTexture,clone:function clone(){return new this.constructor(this.image).copy(this);},isVideoTexture:true,update:function update(){var video=this.image;var hasVideoFrameCallback='requestVideoFrameCallback'in video;if(hasVideoFrameCallback===false&&video.readyState>=video.HAVE_CURRENT_DATA){this.needsUpdate=true;}}});function CompressedTexture(mipmaps,width,height,format,type,mapping,wrapS,wrapT,magFilter,minFilter,anisotropy,encoding){Texture.call(this,null,mapping,wrapS,wrapT,magFilter,minFilter,format,type,anisotropy,encoding);this.image={width:width,height:height};this.mipmaps=mipmaps;// no flipping for cube textures
// (also flipping doesn't work for compressed textures )
this.flipY=false;// can't generate mipmaps for compressed textures
// mips must be embedded in DDS files
this.generateMipmaps=false;}CompressedTexture.prototype=Object.create(Texture.prototype);CompressedTexture.prototype.constructor=CompressedTexture;CompressedTexture.prototype.isCompressedTexture=true;function CanvasTexture(canvas,mapping,wrapS,wrapT,magFilter,minFilter,format,type,anisotropy){Texture.call(this,canvas,mapping,wrapS,wrapT,magFilter,minFilter,format,type,anisotropy);this.needsUpdate=true;}CanvasTexture.prototype=Object.create(Texture.prototype);CanvasTexture.prototype.constructor=CanvasTexture;CanvasTexture.prototype.isCanvasTexture=true;function DepthTexture(width,height,type,mapping,wrapS,wrapT,magFilter,minFilter,anisotropy,format){format=format!==undefined?format:DepthFormat;if(format!==DepthFormat&&format!==DepthStencilFormat){throw new Error('DepthTexture format must be either THREE.DepthFormat or THREE.DepthStencilFormat');}if(type===undefined&&format===DepthFormat)type=UnsignedShortType;if(type===undefined&&format===DepthStencilFormat)type=UnsignedInt248Type;Texture.call(this,null,mapping,wrapS,wrapT,magFilter,minFilter,format,type,anisotropy);this.image={width:width,height:height};this.magFilter=magFilter!==undefined?magFilter:NearestFilter;this.minFilter=minFilter!==undefined?minFilter:NearestFilter;this.flipY=false;this.generateMipmaps=false;}DepthTexture.prototype=Object.create(Texture.prototype);DepthTexture.prototype.constructor=DepthTexture;DepthTexture.prototype.isDepthTexture=true;var _geometryId=0;// Geometry uses even numbers as Id
var _m1$3=new Matrix4();var _obj$1=new Object3D();var _offset$1=new Vector3();function Geometry(){Object.defineProperty(this,'id',{value:_geometryId+=2});this.uuid=MathUtils.generateUUID();this.name='';this.type='Geometry';this.vertices=[];this.colors=[];this.faces=[];this.faceVertexUvs=[[]];this.morphTargets=[];this.morphNormals=[];this.skinWeights=[];this.skinIndices=[];this.lineDistances=[];this.boundingBox=null;this.boundingSphere=null;// update flags
this.elementsNeedUpdate=false;this.verticesNeedUpdate=false;this.uvsNeedUpdate=false;this.normalsNeedUpdate=false;this.colorsNeedUpdate=false;this.lineDistancesNeedUpdate=false;this.groupsNeedUpdate=false;}Geometry.prototype=Object.assign(Object.create(EventDispatcher.prototype),{constructor:Geometry,isGeometry:true,applyMatrix4:function applyMatrix4(matrix){var normalMatrix=new Matrix3().getNormalMatrix(matrix);for(var _i158=0,il=this.vertices.length;_i158<il;_i158++){var vertex=this.vertices[_i158];vertex.applyMatrix4(matrix);}for(var _i159=0,_il12=this.faces.length;_i159<_il12;_i159++){var face=this.faces[_i159];face.normal.applyMatrix3(normalMatrix).normalize();for(var j=0,jl=face.vertexNormals.length;j<jl;j++){face.vertexNormals[j].applyMatrix3(normalMatrix).normalize();}}if(this.boundingBox!==null){this.computeBoundingBox();}if(this.boundingSphere!==null){this.computeBoundingSphere();}this.verticesNeedUpdate=true;this.normalsNeedUpdate=true;return this;},rotateX:function rotateX(angle){// rotate geometry around world x-axis
_m1$3.makeRotationX(angle);this.applyMatrix4(_m1$3);return this;},rotateY:function rotateY(angle){// rotate geometry around world y-axis
_m1$3.makeRotationY(angle);this.applyMatrix4(_m1$3);return this;},rotateZ:function rotateZ(angle){// rotate geometry around world z-axis
_m1$3.makeRotationZ(angle);this.applyMatrix4(_m1$3);return this;},translate:function translate(x,y,z){// translate geometry
_m1$3.makeTranslation(x,y,z);this.applyMatrix4(_m1$3);return this;},scale:function scale(x,y,z){// scale geometry
_m1$3.makeScale(x,y,z);this.applyMatrix4(_m1$3);return this;},lookAt:function lookAt(vector){_obj$1.lookAt(vector);_obj$1.updateMatrix();this.applyMatrix4(_obj$1.matrix);return this;},fromBufferGeometry:function fromBufferGeometry(geometry){var scope=this;var index=geometry.index!==null?geometry.index:undefined;var attributes=geometry.attributes;if(attributes.position===undefined){console.error('THREE.Geometry.fromBufferGeometry(): Position attribute required for conversion.');return this;}var position=attributes.position;var normal=attributes.normal;var color=attributes.color;var uv=attributes.uv;var uv2=attributes.uv2;if(uv2!==undefined)this.faceVertexUvs[1]=[];for(var _i160=0;_i160<position.count;_i160++){scope.vertices.push(new Vector3().fromBufferAttribute(position,_i160));if(color!==undefined){scope.colors.push(new Color().fromBufferAttribute(color,_i160));}}function addFace(a,b,c,materialIndex){var vertexColors=color===undefined?[]:[scope.colors[a].clone(),scope.colors[b].clone(),scope.colors[c].clone()];var vertexNormals=normal===undefined?[]:[new Vector3().fromBufferAttribute(normal,a),new Vector3().fromBufferAttribute(normal,b),new Vector3().fromBufferAttribute(normal,c)];var face=new Face3(a,b,c,vertexNormals,vertexColors,materialIndex);scope.faces.push(face);if(uv!==undefined){scope.faceVertexUvs[0].push([new Vector2().fromBufferAttribute(uv,a),new Vector2().fromBufferAttribute(uv,b),new Vector2().fromBufferAttribute(uv,c)]);}if(uv2!==undefined){scope.faceVertexUvs[1].push([new Vector2().fromBufferAttribute(uv2,a),new Vector2().fromBufferAttribute(uv2,b),new Vector2().fromBufferAttribute(uv2,c)]);}}var groups=geometry.groups;if(groups.length>0){for(var _i161=0;_i161<groups.length;_i161++){var group=groups[_i161];var start=group.start;var count=group.count;for(var j=start,jl=start+count;j<jl;j+=3){if(index!==undefined){addFace(index.getX(j),index.getX(j+1),index.getX(j+2),group.materialIndex);}else {addFace(j,j+1,j+2,group.materialIndex);}}}}else {if(index!==undefined){for(var _i162=0;_i162<index.count;_i162+=3){addFace(index.getX(_i162),index.getX(_i162+1),index.getX(_i162+2));}}else {for(var _i163=0;_i163<position.count;_i163+=3){addFace(_i163,_i163+1,_i163+2);}}}this.computeFaceNormals();if(geometry.boundingBox!==null){this.boundingBox=geometry.boundingBox.clone();}if(geometry.boundingSphere!==null){this.boundingSphere=geometry.boundingSphere.clone();}return this;},center:function center(){this.computeBoundingBox();this.boundingBox.getCenter(_offset$1).negate();this.translate(_offset$1.x,_offset$1.y,_offset$1.z);return this;},normalize:function normalize(){this.computeBoundingSphere();var center=this.boundingSphere.center;var radius=this.boundingSphere.radius;var s=radius===0?1:1.0/radius;var matrix=new Matrix4();matrix.set(s,0,0,-s*center.x,0,s,0,-s*center.y,0,0,s,-s*center.z,0,0,0,1);this.applyMatrix4(matrix);return this;},computeFaceNormals:function computeFaceNormals(){var cb=new Vector3(),ab=new Vector3();for(var f=0,fl=this.faces.length;f<fl;f++){var face=this.faces[f];var vA=this.vertices[face.a];var vB=this.vertices[face.b];var vC=this.vertices[face.c];cb.subVectors(vC,vB);ab.subVectors(vA,vB);cb.cross(ab);cb.normalize();face.normal.copy(cb);}},computeVertexNormals:function computeVertexNormals(){var areaWeighted=arguments.length>0&&arguments[0]!==undefined?arguments[0]:true;var vertices=new Array(this.vertices.length);for(var v=0,vl=this.vertices.length;v<vl;v++){vertices[v]=new Vector3();}if(areaWeighted){// vertex normals weighted by triangle areas
// http://www.iquilezles.org/www/articles/normals/normals.htm
var cb=new Vector3(),ab=new Vector3();for(var f=0,fl=this.faces.length;f<fl;f++){var face=this.faces[f];var vA=this.vertices[face.a];var vB=this.vertices[face.b];var vC=this.vertices[face.c];cb.subVectors(vC,vB);ab.subVectors(vA,vB);cb.cross(ab);vertices[face.a].add(cb);vertices[face.b].add(cb);vertices[face.c].add(cb);}}else {this.computeFaceNormals();for(var _f=0,_fl=this.faces.length;_f<_fl;_f++){var _face=this.faces[_f];vertices[_face.a].add(_face.normal);vertices[_face.b].add(_face.normal);vertices[_face.c].add(_face.normal);}}for(var _v=0,_vl=this.vertices.length;_v<_vl;_v++){vertices[_v].normalize();}for(var _f3=0,_fl2=this.faces.length;_f3<_fl2;_f3++){var _face2=this.faces[_f3];var vertexNormals=_face2.vertexNormals;if(vertexNormals.length===3){vertexNormals[0].copy(vertices[_face2.a]);vertexNormals[1].copy(vertices[_face2.b]);vertexNormals[2].copy(vertices[_face2.c]);}else {vertexNormals[0]=vertices[_face2.a].clone();vertexNormals[1]=vertices[_face2.b].clone();vertexNormals[2]=vertices[_face2.c].clone();}}if(this.faces.length>0){this.normalsNeedUpdate=true;}},computeFlatVertexNormals:function computeFlatVertexNormals(){this.computeFaceNormals();for(var f=0,fl=this.faces.length;f<fl;f++){var face=this.faces[f];var vertexNormals=face.vertexNormals;if(vertexNormals.length===3){vertexNormals[0].copy(face.normal);vertexNormals[1].copy(face.normal);vertexNormals[2].copy(face.normal);}else {vertexNormals[0]=face.normal.clone();vertexNormals[1]=face.normal.clone();vertexNormals[2]=face.normal.clone();}}if(this.faces.length>0){this.normalsNeedUpdate=true;}},computeMorphNormals:function computeMorphNormals(){// save original normals
// - create temp variables on first access
//   otherwise just copy (for faster repeated calls)
for(var f=0,fl=this.faces.length;f<fl;f++){var face=this.faces[f];if(!face.__originalFaceNormal){face.__originalFaceNormal=face.normal.clone();}else {face.__originalFaceNormal.copy(face.normal);}if(!face.__originalVertexNormals)face.__originalVertexNormals=[];for(var _i164=0,il=face.vertexNormals.length;_i164<il;_i164++){if(!face.__originalVertexNormals[_i164]){face.__originalVertexNormals[_i164]=face.vertexNormals[_i164].clone();}else {face.__originalVertexNormals[_i164].copy(face.vertexNormals[_i164]);}}}// use temp geometry to compute face and vertex normals for each morph
var tmpGeo=new Geometry();tmpGeo.faces=this.faces;for(var _i165=0,_il13=this.morphTargets.length;_i165<_il13;_i165++){// create on first access
if(!this.morphNormals[_i165]){this.morphNormals[_i165]={};this.morphNormals[_i165].faceNormals=[];this.morphNormals[_i165].vertexNormals=[];var dstNormalsFace=this.morphNormals[_i165].faceNormals;var dstNormalsVertex=this.morphNormals[_i165].vertexNormals;for(var _f4=0,_fl3=this.faces.length;_f4<_fl3;_f4++){var faceNormal=new Vector3();var vertexNormals={a:new Vector3(),b:new Vector3(),c:new Vector3()};dstNormalsFace.push(faceNormal);dstNormalsVertex.push(vertexNormals);}}var morphNormals=this.morphNormals[_i165];// set vertices to morph target
tmpGeo.vertices=this.morphTargets[_i165].vertices;// compute morph normals
tmpGeo.computeFaceNormals();tmpGeo.computeVertexNormals();// store morph normals
for(var _f5=0,_fl4=this.faces.length;_f5<_fl4;_f5++){var _face3=this.faces[_f5];var _faceNormal=morphNormals.faceNormals[_f5];var _vertexNormals=morphNormals.vertexNormals[_f5];_faceNormal.copy(_face3.normal);_vertexNormals.a.copy(_face3.vertexNormals[0]);_vertexNormals.b.copy(_face3.vertexNormals[1]);_vertexNormals.c.copy(_face3.vertexNormals[2]);}}// restore original normals
for(var _f6=0,_fl5=this.faces.length;_f6<_fl5;_f6++){var _face4=this.faces[_f6];_face4.normal=_face4.__originalFaceNormal;_face4.vertexNormals=_face4.__originalVertexNormals;}},computeBoundingBox:function computeBoundingBox(){if(this.boundingBox===null){this.boundingBox=new Box3();}this.boundingBox.setFromPoints(this.vertices);},computeBoundingSphere:function computeBoundingSphere(){if(this.boundingSphere===null){this.boundingSphere=new Sphere();}this.boundingSphere.setFromPoints(this.vertices);},merge:function merge(geometry,matrix){var materialIndexOffset=arguments.length>2&&arguments[2]!==undefined?arguments[2]:0;if(!(geometry&&geometry.isGeometry)){console.error('THREE.Geometry.merge(): geometry not an instance of THREE.Geometry.',geometry);return;}var normalMatrix;var vertexOffset=this.vertices.length,vertices1=this.vertices,vertices2=geometry.vertices,faces1=this.faces,faces2=geometry.faces,colors1=this.colors,colors2=geometry.colors;if(matrix!==undefined){normalMatrix=new Matrix3().getNormalMatrix(matrix);}// vertices
for(var _i166=0,il=vertices2.length;_i166<il;_i166++){var vertex=vertices2[_i166];var vertexCopy=vertex.clone();if(matrix!==undefined)vertexCopy.applyMatrix4(matrix);vertices1.push(vertexCopy);}// colors
for(var _i167=0,_il14=colors2.length;_i167<_il14;_i167++){colors1.push(colors2[_i167].clone());}// faces
for(var _i168=0,_il15=faces2.length;_i168<_il15;_i168++){var face=faces2[_i168];var normal=void 0,color=void 0;var faceVertexNormals=face.vertexNormals,faceVertexColors=face.vertexColors;var faceCopy=new Face3(face.a+vertexOffset,face.b+vertexOffset,face.c+vertexOffset);faceCopy.normal.copy(face.normal);if(normalMatrix!==undefined){faceCopy.normal.applyMatrix3(normalMatrix).normalize();}for(var j=0,jl=faceVertexNormals.length;j<jl;j++){normal=faceVertexNormals[j].clone();if(normalMatrix!==undefined){normal.applyMatrix3(normalMatrix).normalize();}faceCopy.vertexNormals.push(normal);}faceCopy.color.copy(face.color);for(var _j5=0,_jl2=faceVertexColors.length;_j5<_jl2;_j5++){color=faceVertexColors[_j5];faceCopy.vertexColors.push(color.clone());}faceCopy.materialIndex=face.materialIndex+materialIndexOffset;faces1.push(faceCopy);}// uvs
for(var _i169=0,_il16=geometry.faceVertexUvs.length;_i169<_il16;_i169++){var faceVertexUvs2=geometry.faceVertexUvs[_i169];if(this.faceVertexUvs[_i169]===undefined)this.faceVertexUvs[_i169]=[];for(var _j6=0,_jl3=faceVertexUvs2.length;_j6<_jl3;_j6++){var uvs2=faceVertexUvs2[_j6],uvsCopy=[];for(var k=0,kl=uvs2.length;k<kl;k++){uvsCopy.push(uvs2[k].clone());}this.faceVertexUvs[_i169].push(uvsCopy);}}},mergeMesh:function mergeMesh(mesh){if(!(mesh&&mesh.isMesh)){console.error('THREE.Geometry.mergeMesh(): mesh not an instance of THREE.Mesh.',mesh);return;}if(mesh.matrixAutoUpdate)mesh.updateMatrix();this.merge(mesh.geometry,mesh.matrix);},/*
	 * Checks for duplicate vertices with hashmap.
	 * Duplicated vertices are removed
	 * and faces' vertices are updated.
	 */mergeVertices:function mergeVertices(){var precisionPoints=arguments.length>0&&arguments[0]!==undefined?arguments[0]:4;var verticesMap={};// Hashmap for looking up vertices by position coordinates (and making sure they are unique)
var unique=[],changes=[];var precision=Math.pow(10,precisionPoints);for(var _i170=0,il=this.vertices.length;_i170<il;_i170++){var v=this.vertices[_i170];var key=Math.round(v.x*precision)+'_'+Math.round(v.y*precision)+'_'+Math.round(v.z*precision);if(verticesMap[key]===undefined){verticesMap[key]=_i170;unique.push(this.vertices[_i170]);changes[_i170]=unique.length-1;}else {//console.log('Duplicate vertex found. ', i, ' could be using ', verticesMap[key]);
changes[_i170]=changes[verticesMap[key]];}}// if faces are completely degenerate after merging vertices, we
// have to remove them from the geometry.
var faceIndicesToRemove=[];for(var _i171=0,_il17=this.faces.length;_i171<_il17;_i171++){var face=this.faces[_i171];face.a=changes[face.a];face.b=changes[face.b];face.c=changes[face.c];var indices=[face.a,face.b,face.c];// if any duplicate vertices are found in a Face3
// we have to remove the face as nothing can be saved
for(var n=0;n<3;n++){if(indices[n]===indices[(n+1)%3]){faceIndicesToRemove.push(_i171);break;}}}for(var _i172=faceIndicesToRemove.length-1;_i172>=0;_i172--){var idx=faceIndicesToRemove[_i172];this.faces.splice(idx,1);for(var j=0,jl=this.faceVertexUvs.length;j<jl;j++){this.faceVertexUvs[j].splice(idx,1);}}// Use unique set of vertices
var diff=this.vertices.length-unique.length;this.vertices=unique;return diff;},setFromPoints:function setFromPoints(points){this.vertices=[];for(var _i173=0,l=points.length;_i173<l;_i173++){var point=points[_i173];this.vertices.push(new Vector3(point.x,point.y,point.z||0));}return this;},sortFacesByMaterialIndex:function sortFacesByMaterialIndex(){var faces=this.faces;var length=faces.length;// tag faces
for(var _i174=0;_i174<length;_i174++){faces[_i174]._id=_i174;}// sort faces
function materialIndexSort(a,b){return a.materialIndex-b.materialIndex;}faces.sort(materialIndexSort);// sort uvs
var uvs1=this.faceVertexUvs[0];var uvs2=this.faceVertexUvs[1];var newUvs1,newUvs2;if(uvs1&&uvs1.length===length)newUvs1=[];if(uvs2&&uvs2.length===length)newUvs2=[];for(var _i175=0;_i175<length;_i175++){var id=faces[_i175]._id;if(newUvs1)newUvs1.push(uvs1[id]);if(newUvs2)newUvs2.push(uvs2[id]);}if(newUvs1)this.faceVertexUvs[0]=newUvs1;if(newUvs2)this.faceVertexUvs[1]=newUvs2;},toJSON:function toJSON(){var data={metadata:{version:4.5,type:'Geometry',generator:'Geometry.toJSON'}};// standard Geometry serialization
data.uuid=this.uuid;data.type=this.type;if(this.name!=='')data.name=this.name;if(this.parameters!==undefined){var parameters=this.parameters;for(var key in parameters){if(parameters[key]!==undefined)data[key]=parameters[key];}return data;}var vertices=[];for(var _i176=0;_i176<this.vertices.length;_i176++){var vertex=this.vertices[_i176];vertices.push(vertex.x,vertex.y,vertex.z);}var faces=[];var normals=[];var normalsHash={};var colors=[];var colorsHash={};var uvs=[];var uvsHash={};for(var _i177=0;_i177<this.faces.length;_i177++){var face=this.faces[_i177];var hasMaterial=true;var hasFaceUv=false;// deprecated
var hasFaceVertexUv=this.faceVertexUvs[0][_i177]!==undefined;var hasFaceNormal=face.normal.length()>0;var hasFaceVertexNormal=face.vertexNormals.length>0;var hasFaceColor=face.color.r!==1||face.color.g!==1||face.color.b!==1;var hasFaceVertexColor=face.vertexColors.length>0;var faceType=0;faceType=setBit(faceType,0,0);// isQuad
faceType=setBit(faceType,1,hasMaterial);faceType=setBit(faceType,2,hasFaceUv);faceType=setBit(faceType,3,hasFaceVertexUv);faceType=setBit(faceType,4,hasFaceNormal);faceType=setBit(faceType,5,hasFaceVertexNormal);faceType=setBit(faceType,6,hasFaceColor);faceType=setBit(faceType,7,hasFaceVertexColor);faces.push(faceType);faces.push(face.a,face.b,face.c);faces.push(face.materialIndex);if(hasFaceVertexUv){var faceVertexUvs=this.faceVertexUvs[0][_i177];faces.push(getUvIndex(faceVertexUvs[0]),getUvIndex(faceVertexUvs[1]),getUvIndex(faceVertexUvs[2]));}if(hasFaceNormal){faces.push(getNormalIndex(face.normal));}if(hasFaceVertexNormal){var vertexNormals=face.vertexNormals;faces.push(getNormalIndex(vertexNormals[0]),getNormalIndex(vertexNormals[1]),getNormalIndex(vertexNormals[2]));}if(hasFaceColor){faces.push(getColorIndex(face.color));}if(hasFaceVertexColor){var vertexColors=face.vertexColors;faces.push(getColorIndex(vertexColors[0]),getColorIndex(vertexColors[1]),getColorIndex(vertexColors[2]));}}function setBit(value,position,enabled){return enabled?value|1<<position:value&~(1<<position);}function getNormalIndex(normal){var hash=normal.x.toString()+normal.y.toString()+normal.z.toString();if(normalsHash[hash]!==undefined){return normalsHash[hash];}normalsHash[hash]=normals.length/3;normals.push(normal.x,normal.y,normal.z);return normalsHash[hash];}function getColorIndex(color){var hash=color.r.toString()+color.g.toString()+color.b.toString();if(colorsHash[hash]!==undefined){return colorsHash[hash];}colorsHash[hash]=colors.length;colors.push(color.getHex());return colorsHash[hash];}function getUvIndex(uv){var hash=uv.x.toString()+uv.y.toString();if(uvsHash[hash]!==undefined){return uvsHash[hash];}uvsHash[hash]=uvs.length/2;uvs.push(uv.x,uv.y);return uvsHash[hash];}data.data={};data.data.vertices=vertices;data.data.normals=normals;if(colors.length>0)data.data.colors=colors;if(uvs.length>0)data.data.uvs=[uvs];// temporal backward compatibility
data.data.faces=faces;return data;},clone:function clone(){/*
		 // Handle primitives

		 const parameters = this.parameters;

		 if ( parameters !== undefined ) {

		 const values = [];

		 for ( const key in parameters ) {

		 values.push( parameters[ key ] );

		 }

		 const geometry = Object.create( this.constructor.prototype );
		 this.constructor.apply( geometry, values );
		 return geometry;

		 }

		 return new this.constructor().copy( this );
		 */return new Geometry().copy(this);},copy:function copy(source){// reset
this.vertices=[];this.colors=[];this.faces=[];this.faceVertexUvs=[[]];this.morphTargets=[];this.morphNormals=[];this.skinWeights=[];this.skinIndices=[];this.lineDistances=[];this.boundingBox=null;this.boundingSphere=null;// name
this.name=source.name;// vertices
var vertices=source.vertices;for(var _i178=0,il=vertices.length;_i178<il;_i178++){this.vertices.push(vertices[_i178].clone());}// colors
var colors=source.colors;for(var _i179=0,_il18=colors.length;_i179<_il18;_i179++){this.colors.push(colors[_i179].clone());}// faces
var faces=source.faces;for(var _i180=0,_il19=faces.length;_i180<_il19;_i180++){this.faces.push(faces[_i180].clone());}// face vertex uvs
for(var _i181=0,_il20=source.faceVertexUvs.length;_i181<_il20;_i181++){var faceVertexUvs=source.faceVertexUvs[_i181];if(this.faceVertexUvs[_i181]===undefined){this.faceVertexUvs[_i181]=[];}for(var j=0,jl=faceVertexUvs.length;j<jl;j++){var uvs=faceVertexUvs[j],uvsCopy=[];for(var k=0,kl=uvs.length;k<kl;k++){var uv=uvs[k];uvsCopy.push(uv.clone());}this.faceVertexUvs[_i181].push(uvsCopy);}}// morph targets
var morphTargets=source.morphTargets;for(var _i182=0,_il21=morphTargets.length;_i182<_il21;_i182++){var morphTarget={};morphTarget.name=morphTargets[_i182].name;// vertices
if(morphTargets[_i182].vertices!==undefined){morphTarget.vertices=[];for(var _j7=0,_jl4=morphTargets[_i182].vertices.length;_j7<_jl4;_j7++){morphTarget.vertices.push(morphTargets[_i182].vertices[_j7].clone());}}// normals
if(morphTargets[_i182].normals!==undefined){morphTarget.normals=[];for(var _j8=0,_jl5=morphTargets[_i182].normals.length;_j8<_jl5;_j8++){morphTarget.normals.push(morphTargets[_i182].normals[_j8].clone());}}this.morphTargets.push(morphTarget);}// morph normals
var morphNormals=source.morphNormals;for(var _i183=0,_il22=morphNormals.length;_i183<_il22;_i183++){var morphNormal={};// vertex normals
if(morphNormals[_i183].vertexNormals!==undefined){morphNormal.vertexNormals=[];for(var _j9=0,_jl6=morphNormals[_i183].vertexNormals.length;_j9<_jl6;_j9++){var srcVertexNormal=morphNormals[_i183].vertexNormals[_j9];var destVertexNormal={};destVertexNormal.a=srcVertexNormal.a.clone();destVertexNormal.b=srcVertexNormal.b.clone();destVertexNormal.c=srcVertexNormal.c.clone();morphNormal.vertexNormals.push(destVertexNormal);}}// face normals
if(morphNormals[_i183].faceNormals!==undefined){morphNormal.faceNormals=[];for(var _j10=0,_jl7=morphNormals[_i183].faceNormals.length;_j10<_jl7;_j10++){morphNormal.faceNormals.push(morphNormals[_i183].faceNormals[_j10].clone());}}this.morphNormals.push(morphNormal);}// skin weights
var skinWeights=source.skinWeights;for(var _i184=0,_il23=skinWeights.length;_i184<_il23;_i184++){this.skinWeights.push(skinWeights[_i184].clone());}// skin indices
var skinIndices=source.skinIndices;for(var _i185=0,_il24=skinIndices.length;_i185<_il24;_i185++){this.skinIndices.push(skinIndices[_i185].clone());}// line distances
var lineDistances=source.lineDistances;for(var _i186=0,_il25=lineDistances.length;_i186<_il25;_i186++){this.lineDistances.push(lineDistances[_i186]);}// bounding box
var boundingBox=source.boundingBox;if(boundingBox!==null){this.boundingBox=boundingBox.clone();}// bounding sphere
var boundingSphere=source.boundingSphere;if(boundingSphere!==null){this.boundingSphere=boundingSphere.clone();}// update flags
this.elementsNeedUpdate=source.elementsNeedUpdate;this.verticesNeedUpdate=source.verticesNeedUpdate;this.uvsNeedUpdate=source.uvsNeedUpdate;this.normalsNeedUpdate=source.normalsNeedUpdate;this.colorsNeedUpdate=source.colorsNeedUpdate;this.lineDistancesNeedUpdate=source.lineDistancesNeedUpdate;this.groupsNeedUpdate=source.groupsNeedUpdate;return this;},dispose:function dispose(){this.dispatchEvent({type:'dispose'});}});var _v0$2=new Vector3();var _v1$5=new Vector3();var _normal$1=new Vector3();var _triangle=new Triangle();/**
 * Port from https://github.com/mapbox/earcut (v2.2.2)
 */var Earcut={triangulate:function triangulate(data,holeIndices,dim){dim=dim||2;var hasHoles=holeIndices&&holeIndices.length;var outerLen=hasHoles?holeIndices[0]*dim:data.length;var outerNode=linkedList(data,0,outerLen,dim,true);var triangles=[];if(!outerNode||outerNode.next===outerNode.prev)return triangles;var minX,minY,maxX,maxY,x,y,invSize;if(hasHoles)outerNode=eliminateHoles(data,holeIndices,outerNode,dim);// if the shape is not too simple, we'll use z-order curve hash later; calculate polygon bbox
if(data.length>80*dim){minX=maxX=data[0];minY=maxY=data[1];for(var _i198=dim;_i198<outerLen;_i198+=dim){x=data[_i198];y=data[_i198+1];if(x<minX)minX=x;if(y<minY)minY=y;if(x>maxX)maxX=x;if(y>maxY)maxY=y;}// minX, minY and invSize are later used to transform coords into integers for z-order calculation
invSize=Math.max(maxX-minX,maxY-minY);invSize=invSize!==0?1/invSize:0;}earcutLinked(outerNode,triangles,dim,minX,minY,invSize);return triangles;}};// create a circular doubly linked list from polygon points in the specified winding order
function linkedList(data,start,end,dim,clockwise){var i,last;if(clockwise===signedArea(data,start,end,dim)>0){for(i=start;i<end;i+=dim)last=insertNode(i,data[i],data[i+1],last);}else {for(i=end-dim;i>=start;i-=dim)last=insertNode(i,data[i],data[i+1],last);}if(last&&equals(last,last.next)){removeNode(last);last=last.next;}return last;}// eliminate colinear or duplicate points
function filterPoints(start,end){if(!start)return start;if(!end)end=start;var p=start,again;do{again=false;if(!p.steiner&&(equals(p,p.next)||area(p.prev,p,p.next)===0)){removeNode(p);p=end=p.prev;if(p===p.next)break;again=true;}else {p=p.next;}}while(again||p!==end);return end;}// main ear slicing loop which triangulates a polygon (given as a linked list)
function earcutLinked(ear,triangles,dim,minX,minY,invSize,pass){if(!ear)return;// interlink polygon nodes in z-order
if(!pass&&invSize)indexCurve(ear,minX,minY,invSize);var stop=ear,prev,next;// iterate through ears, slicing them one by one
while(ear.prev!==ear.next){prev=ear.prev;next=ear.next;if(invSize?isEarHashed(ear,minX,minY,invSize):isEar(ear)){// cut off the triangle
triangles.push(prev.i/dim);triangles.push(ear.i/dim);triangles.push(next.i/dim);removeNode(ear);// skipping the next vertex leads to less sliver triangles
ear=next.next;stop=next.next;continue;}ear=next;// if we looped through the whole remaining polygon and can't find any more ears
if(ear===stop){// try filtering points and slicing again
if(!pass){earcutLinked(filterPoints(ear),triangles,dim,minX,minY,invSize,1);// if this didn't work, try curing all small self-intersections locally
}else if(pass===1){ear=cureLocalIntersections(filterPoints(ear),triangles,dim);earcutLinked(ear,triangles,dim,minX,minY,invSize,2);// as a last resort, try splitting the remaining polygon into two
}else if(pass===2){splitEarcut(ear,triangles,dim,minX,minY,invSize);}break;}}}// check whether a polygon node forms a valid ear with adjacent nodes
function isEar(ear){var a=ear.prev,b=ear,c=ear.next;if(area(a,b,c)>=0)return false;// reflex, can't be an ear
// now make sure we don't have other points inside the potential ear
var p=ear.next.next;while(p!==ear.prev){if(pointInTriangle(a.x,a.y,b.x,b.y,c.x,c.y,p.x,p.y)&&area(p.prev,p,p.next)>=0)return false;p=p.next;}return true;}function isEarHashed(ear,minX,minY,invSize){var a=ear.prev,b=ear,c=ear.next;if(area(a,b,c)>=0)return false;// reflex, can't be an ear
// triangle bbox; min & max are calculated like this for speed
var minTX=a.x<b.x?a.x<c.x?a.x:c.x:b.x<c.x?b.x:c.x,minTY=a.y<b.y?a.y<c.y?a.y:c.y:b.y<c.y?b.y:c.y,maxTX=a.x>b.x?a.x>c.x?a.x:c.x:b.x>c.x?b.x:c.x,maxTY=a.y>b.y?a.y>c.y?a.y:c.y:b.y>c.y?b.y:c.y;// z-order range for the current triangle bbox;
var minZ=zOrder(minTX,minTY,minX,minY,invSize),maxZ=zOrder(maxTX,maxTY,minX,minY,invSize);var p=ear.prevZ,n=ear.nextZ;// look for points inside the triangle in both directions
while(p&&p.z>=minZ&&n&&n.z<=maxZ){if(p!==ear.prev&&p!==ear.next&&pointInTriangle(a.x,a.y,b.x,b.y,c.x,c.y,p.x,p.y)&&area(p.prev,p,p.next)>=0)return false;p=p.prevZ;if(n!==ear.prev&&n!==ear.next&&pointInTriangle(a.x,a.y,b.x,b.y,c.x,c.y,n.x,n.y)&&area(n.prev,n,n.next)>=0)return false;n=n.nextZ;}// look for remaining points in decreasing z-order
while(p&&p.z>=minZ){if(p!==ear.prev&&p!==ear.next&&pointInTriangle(a.x,a.y,b.x,b.y,c.x,c.y,p.x,p.y)&&area(p.prev,p,p.next)>=0)return false;p=p.prevZ;}// look for remaining points in increasing z-order
while(n&&n.z<=maxZ){if(n!==ear.prev&&n!==ear.next&&pointInTriangle(a.x,a.y,b.x,b.y,c.x,c.y,n.x,n.y)&&area(n.prev,n,n.next)>=0)return false;n=n.nextZ;}return true;}// go through all polygon nodes and cure small local self-intersections
function cureLocalIntersections(start,triangles,dim){var p=start;do{var a=p.prev,b=p.next.next;if(!equals(a,b)&&intersects(a,p,p.next,b)&&locallyInside(a,b)&&locallyInside(b,a)){triangles.push(a.i/dim);triangles.push(p.i/dim);triangles.push(b.i/dim);// remove two nodes involved
removeNode(p);removeNode(p.next);p=start=b;}p=p.next;}while(p!==start);return filterPoints(p);}// try splitting polygon into two and triangulate them independently
function splitEarcut(start,triangles,dim,minX,minY,invSize){// look for a valid diagonal that divides the polygon into two
var a=start;do{var b=a.next.next;while(b!==a.prev){if(a.i!==b.i&&isValidDiagonal(a,b)){// split the polygon in two by the diagonal
var c=splitPolygon(a,b);// filter colinear points around the cuts
a=filterPoints(a,a.next);c=filterPoints(c,c.next);// run earcut on each half
earcutLinked(a,triangles,dim,minX,minY,invSize);earcutLinked(c,triangles,dim,minX,minY,invSize);return;}b=b.next;}a=a.next;}while(a!==start);}// link every hole into the outer loop, producing a single-ring polygon without holes
function eliminateHoles(data,holeIndices,outerNode,dim){var queue=[];var i,len,start,end,list;for(i=0,len=holeIndices.length;i<len;i++){start=holeIndices[i]*dim;end=i<len-1?holeIndices[i+1]*dim:data.length;list=linkedList(data,start,end,dim,false);if(list===list.next)list.steiner=true;queue.push(getLeftmost(list));}queue.sort(compareX);// process holes from left to right
for(i=0;i<queue.length;i++){eliminateHole(queue[i],outerNode);outerNode=filterPoints(outerNode,outerNode.next);}return outerNode;}function compareX(a,b){return a.x-b.x;}// find a bridge between vertices that connects hole with an outer ring and and link it
function eliminateHole(hole,outerNode){outerNode=findHoleBridge(hole,outerNode);if(outerNode){var b=splitPolygon(outerNode,hole);// filter collinear points around the cuts
filterPoints(outerNode,outerNode.next);filterPoints(b,b.next);}}// David Eberly's algorithm for finding a bridge between hole and outer polygon
function findHoleBridge(hole,outerNode){var p=outerNode;var hx=hole.x;var hy=hole.y;var qx=-Infinity,m;// find a segment intersected by a ray from the hole's leftmost point to the left;
// segment's endpoint with lesser x will be potential connection point
do{if(hy<=p.y&&hy>=p.next.y&&p.next.y!==p.y){var x=p.x+(hy-p.y)*(p.next.x-p.x)/(p.next.y-p.y);if(x<=hx&&x>qx){qx=x;if(x===hx){if(hy===p.y)return p;if(hy===p.next.y)return p.next;}m=p.x<p.next.x?p:p.next;}}p=p.next;}while(p!==outerNode);if(!m)return null;if(hx===qx)return m;// hole touches outer segment; pick leftmost endpoint
// look for points inside the triangle of hole point, segment intersection and endpoint;
// if there are no points found, we have a valid connection;
// otherwise choose the point of the minimum angle with the ray as connection point
var stop=m,mx=m.x,my=m.y;var tanMin=Infinity,tan;p=m;do{if(hx>=p.x&&p.x>=mx&&hx!==p.x&&pointInTriangle(hy<my?hx:qx,hy,mx,my,hy<my?qx:hx,hy,p.x,p.y)){tan=Math.abs(hy-p.y)/(hx-p.x);// tangential
if(locallyInside(p,hole)&&(tan<tanMin||tan===tanMin&&(p.x>m.x||p.x===m.x&&sectorContainsSector(m,p)))){m=p;tanMin=tan;}}p=p.next;}while(p!==stop);return m;}// whether sector in vertex m contains sector in vertex p in the same coordinates
function sectorContainsSector(m,p){return area(m.prev,m,p.prev)<0&&area(p.next,m,m.next)<0;}// interlink polygon nodes in z-order
function indexCurve(start,minX,minY,invSize){var p=start;do{if(p.z===null)p.z=zOrder(p.x,p.y,minX,minY,invSize);p.prevZ=p.prev;p.nextZ=p.next;p=p.next;}while(p!==start);p.prevZ.nextZ=null;p.prevZ=null;sortLinked(p);}// Simon Tatham's linked list merge sort algorithm
// http://www.chiark.greenend.org.uk/~sgtatham/algorithms/listsort.html
function sortLinked(list){var i,p,q,e,tail,numMerges,pSize,qSize,inSize=1;do{p=list;list=null;tail=null;numMerges=0;while(p){numMerges++;q=p;pSize=0;for(i=0;i<inSize;i++){pSize++;q=q.nextZ;if(!q)break;}qSize=inSize;while(pSize>0||qSize>0&&q){if(pSize!==0&&(qSize===0||!q||p.z<=q.z)){e=p;p=p.nextZ;pSize--;}else {e=q;q=q.nextZ;qSize--;}if(tail)tail.nextZ=e;else list=e;e.prevZ=tail;tail=e;}p=q;}tail.nextZ=null;inSize*=2;}while(numMerges>1);return list;}// z-order of a point given coords and inverse of the longer side of data bbox
function zOrder(x,y,minX,minY,invSize){// coords are transformed into non-negative 15-bit integer range
x=32767*(x-minX)*invSize;y=32767*(y-minY)*invSize;x=(x|x<<8)&0x00FF00FF;x=(x|x<<4)&0x0F0F0F0F;x=(x|x<<2)&0x33333333;x=(x|x<<1)&0x55555555;y=(y|y<<8)&0x00FF00FF;y=(y|y<<4)&0x0F0F0F0F;y=(y|y<<2)&0x33333333;y=(y|y<<1)&0x55555555;return x|y<<1;}// find the leftmost node of a polygon ring
function getLeftmost(start){var p=start,leftmost=start;do{if(p.x<leftmost.x||p.x===leftmost.x&&p.y<leftmost.y)leftmost=p;p=p.next;}while(p!==start);return leftmost;}// check if a point lies within a convex triangle
function pointInTriangle(ax,ay,bx,by,cx,cy,px,py){return (cx-px)*(ay-py)-(ax-px)*(cy-py)>=0&&(ax-px)*(by-py)-(bx-px)*(ay-py)>=0&&(bx-px)*(cy-py)-(cx-px)*(by-py)>=0;}// check if a diagonal between two polygon nodes is valid (lies in polygon interior)
function isValidDiagonal(a,b){return a.next.i!==b.i&&a.prev.i!==b.i&&!intersectsPolygon(a,b)&&(// dones't intersect other edges
locallyInside(a,b)&&locallyInside(b,a)&&middleInside(a,b)&&(// locally visible
area(a.prev,a,b.prev)||area(a,b.prev,b))||// does not create opposite-facing sectors
equals(a,b)&&area(a.prev,a,a.next)>0&&area(b.prev,b,b.next)>0);// special zero-length case
}// signed area of a triangle
function area(p,q,r){return (q.y-p.y)*(r.x-q.x)-(q.x-p.x)*(r.y-q.y);}// check if two points are equal
function equals(p1,p2){return p1.x===p2.x&&p1.y===p2.y;}// check if two segments intersect
function intersects(p1,q1,p2,q2){var o1=sign(area(p1,q1,p2));var o2=sign(area(p1,q1,q2));var o3=sign(area(p2,q2,p1));var o4=sign(area(p2,q2,q1));if(o1!==o2&&o3!==o4)return true;// general case
if(o1===0&&onSegment(p1,p2,q1))return true;// p1, q1 and p2 are collinear and p2 lies on p1q1
if(o2===0&&onSegment(p1,q2,q1))return true;// p1, q1 and q2 are collinear and q2 lies on p1q1
if(o3===0&&onSegment(p2,p1,q2))return true;// p2, q2 and p1 are collinear and p1 lies on p2q2
if(o4===0&&onSegment(p2,q1,q2))return true;// p2, q2 and q1 are collinear and q1 lies on p2q2
return false;}// for collinear points p, q, r, check if point q lies on segment pr
function onSegment(p,q,r){return q.x<=Math.max(p.x,r.x)&&q.x>=Math.min(p.x,r.x)&&q.y<=Math.max(p.y,r.y)&&q.y>=Math.min(p.y,r.y);}function sign(num){return num>0?1:num<0?-1:0;}// check if a polygon diagonal intersects any polygon segments
function intersectsPolygon(a,b){var p=a;do{if(p.i!==a.i&&p.next.i!==a.i&&p.i!==b.i&&p.next.i!==b.i&&intersects(p,p.next,a,b))return true;p=p.next;}while(p!==a);return false;}// check if a polygon diagonal is locally inside the polygon
function locallyInside(a,b){return area(a.prev,a,a.next)<0?area(a,b,a.next)>=0&&area(a,a.prev,b)>=0:area(a,b,a.prev)<0||area(a,a.next,b)<0;}// check if the middle point of a polygon diagonal is inside the polygon
function middleInside(a,b){var p=a,inside=false;var px=(a.x+b.x)/2,py=(a.y+b.y)/2;do{if(p.y>py!==p.next.y>py&&p.next.y!==p.y&&px<(p.next.x-p.x)*(py-p.y)/(p.next.y-p.y)+p.x)inside=!inside;p=p.next;}while(p!==a);return inside;}// link two polygon vertices with a bridge; if the vertices belong to the same ring, it splits polygon into two;
// if one belongs to the outer ring and another to a hole, it merges it into a single ring
function splitPolygon(a,b){var a2=new Node(a.i,a.x,a.y),b2=new Node(b.i,b.x,b.y),an=a.next,bp=b.prev;a.next=b;b.prev=a;a2.next=an;an.prev=a2;b2.next=a2;a2.prev=b2;bp.next=b2;b2.prev=bp;return b2;}// create a node and optionally link it with previous one (in a circular doubly linked list)
function insertNode(i,x,y,last){var p=new Node(i,x,y);if(!last){p.prev=p;p.next=p;}else {p.next=last.next;p.prev=last;last.next.prev=p;last.next=p;}return p;}function removeNode(p){p.next.prev=p.prev;p.prev.next=p.next;if(p.prevZ)p.prevZ.nextZ=p.nextZ;if(p.nextZ)p.nextZ.prevZ=p.prevZ;}function Node(i,x,y){// vertex index in coordinates array
this.i=i;// vertex coordinates
this.x=x;this.y=y;// previous and next vertex nodes in a polygon ring
this.prev=null;this.next=null;// z-order curve value
this.z=null;// previous and next nodes in z-order
this.prevZ=null;this.nextZ=null;// indicates whether this is a steiner point
this.steiner=false;}function signedArea(data,start,end,dim){var sum=0;for(var _i199=start,j=end-dim;_i199<end;_i199+=dim){sum+=(data[j]-data[_i199])*(data[_i199+1]+data[j+1]);j=_i199;}return sum;}var ShapeUtils={// calculate area of the contour polygon
area:function area(contour){var n=contour.length;var a=0.0;for(var p=n-1,q=0;q<n;p=q++){a+=contour[p].x*contour[q].y-contour[q].x*contour[p].y;}return a*0.5;},isClockWise:function isClockWise(pts){return ShapeUtils.area(pts)<0;},triangulateShape:function triangulateShape(contour,holes){var vertices=[];// flat array of vertices like [ x0,y0, x1,y1, x2,y2, ... ]
var holeIndices=[];// array of hole indices
var faces=[];// final array of vertex indices like [ [ a,b,d ], [ b,c,d ] ]
removeDupEndPts(contour);addContour(vertices,contour);//
var holeIndex=contour.length;holes.forEach(removeDupEndPts);for(var _i200=0;_i200<holes.length;_i200++){holeIndices.push(holeIndex);holeIndex+=holes[_i200].length;addContour(vertices,holes[_i200]);}//
var triangles=Earcut.triangulate(vertices,holeIndices);//
for(var _i201=0;_i201<triangles.length;_i201+=3){faces.push(triangles.slice(_i201,_i201+3));}return faces;}};function removeDupEndPts(points){var l=points.length;if(l>2&&points[l-1].equals(points[0])){points.pop();}}function addContour(vertices,contour){for(var _i202=0;_i202<contour.length;_i202++){vertices.push(contour[_i202].x);vertices.push(contour[_i202].y);}}/**
 * Creates extruded geometry from a path shape.
 *
 * parameters = {
 *
 *  curveSegments: <int>, // number of points on the curves
 *  steps: <int>, // number of points for z-side extrusions / used for subdividing segments of extrude spline too
 *  depth: <float>, // Depth to extrude the shape
 *
 *  bevelEnabled: <bool>, // turn on bevel
 *  bevelThickness: <float>, // how deep into the original shape bevel goes
 *  bevelSize: <float>, // how far from shape outline (including bevelOffset) is bevel
 *  bevelOffset: <float>, // how far from shape outline does bevel start
 *  bevelSegments: <int>, // number of bevel layers
 *
 *  extrudePath: <THREE.Curve> // curve to extrude shape along
 *
 *  UVGenerator: <Object> // object that provides UV generator functions
 *
 * }
 */class ExtrudeBufferGeometry extends BufferGeometry{constructor(shapes,options){super();this.type='ExtrudeBufferGeometry';this.parameters={shapes:shapes,options:options};shapes=Array.isArray(shapes)?shapes:[shapes];var scope=this;var verticesArray=[];var uvArray=[];for(var _i203=0,l=shapes.length;_i203<l;_i203++){var shape=shapes[_i203];addShape(shape);}// build geometry
this.setAttribute('position',new Float32BufferAttribute(verticesArray,3));this.setAttribute('uv',new Float32BufferAttribute(uvArray,2));this.computeVertexNormals();// functions
function addShape(shape){var placeholder=[];// options
var curveSegments=options.curveSegments!==undefined?options.curveSegments:12;var steps=options.steps!==undefined?options.steps:1;var depth=options.depth!==undefined?options.depth:100;var bevelEnabled=options.bevelEnabled!==undefined?options.bevelEnabled:true;var bevelThickness=options.bevelThickness!==undefined?options.bevelThickness:6;var bevelSize=options.bevelSize!==undefined?options.bevelSize:bevelThickness-2;var bevelOffset=options.bevelOffset!==undefined?options.bevelOffset:0;var bevelSegments=options.bevelSegments!==undefined?options.bevelSegments:3;var extrudePath=options.extrudePath;var uvgen=options.UVGenerator!==undefined?options.UVGenerator:WorldUVGenerator;// deprecated options
if(options.amount!==undefined){console.warn('THREE.ExtrudeBufferGeometry: amount has been renamed to depth.');depth=options.amount;}//
var extrudePts,extrudeByPath=false;var splineTube,binormal,normal,position2;if(extrudePath){extrudePts=extrudePath.getSpacedPoints(steps);extrudeByPath=true;bevelEnabled=false;// bevels not supported for path extrusion
// SETUP TNB variables
// TODO1 - have a .isClosed in spline?
splineTube=extrudePath.computeFrenetFrames(steps,false);// console.log(splineTube, 'splineTube', splineTube.normals.length, 'steps', steps, 'extrudePts', extrudePts.length);
binormal=new Vector3();normal=new Vector3();position2=new Vector3();}// Safeguards if bevels are not enabled
if(!bevelEnabled){bevelSegments=0;bevelThickness=0;bevelSize=0;bevelOffset=0;}// Variables initialization
var shapePoints=shape.extractPoints(curveSegments);var vertices=shapePoints.shape;var holes=shapePoints.holes;var reverse=!ShapeUtils.isClockWise(vertices);if(reverse){vertices=vertices.reverse();// Maybe we should also check if holes are in the opposite direction, just to be safe ...
for(var h=0,hl=holes.length;h<hl;h++){var ahole=holes[h];if(ShapeUtils.isClockWise(ahole)){holes[h]=ahole.reverse();}}}var faces=ShapeUtils.triangulateShape(vertices,holes);/* Vertices */var contour=vertices;// vertices has all points but contour has only points of circumference
for(var _h=0,_hl=holes.length;_h<_hl;_h++){var _ahole=holes[_h];vertices=vertices.concat(_ahole);}function scalePt2(pt,vec,size){if(!vec)console.error('THREE.ExtrudeGeometry: vec does not exist');return vec.clone().multiplyScalar(size).add(pt);}var vlen=vertices.length,flen=faces.length;// Find directions for point movement
function getBevelVec(inPt,inPrev,inNext){// computes for inPt the corresponding point inPt' on a new contour
//   shifted by 1 unit (length of normalized vector) to the left
// if we walk along contour clockwise, this new contour is outside the old one
//
// inPt' is the intersection of the two lines parallel to the two
//  adjacent edges of inPt at a distance of 1 unit on the left side.
var v_trans_x,v_trans_y,shrink_by;// resulting translation vector for inPt
// good reading for geometry algorithms (here: line-line intersection)
// http://geomalgorithms.com/a05-_intersect-1.html
var v_prev_x=inPt.x-inPrev.x,v_prev_y=inPt.y-inPrev.y;var v_next_x=inNext.x-inPt.x,v_next_y=inNext.y-inPt.y;var v_prev_lensq=v_prev_x*v_prev_x+v_prev_y*v_prev_y;// check for collinear edges
var collinear0=v_prev_x*v_next_y-v_prev_y*v_next_x;if(Math.abs(collinear0)>Number.EPSILON){// not collinear
// length of vectors for normalizing
var v_prev_len=Math.sqrt(v_prev_lensq);var v_next_len=Math.sqrt(v_next_x*v_next_x+v_next_y*v_next_y);// shift adjacent points by unit vectors to the left
var ptPrevShift_x=inPrev.x-v_prev_y/v_prev_len;var ptPrevShift_y=inPrev.y+v_prev_x/v_prev_len;var ptNextShift_x=inNext.x-v_next_y/v_next_len;var ptNextShift_y=inNext.y+v_next_x/v_next_len;// scaling factor for v_prev to intersection point
var sf=((ptNextShift_x-ptPrevShift_x)*v_next_y-(ptNextShift_y-ptPrevShift_y)*v_next_x)/(v_prev_x*v_next_y-v_prev_y*v_next_x);// vector from inPt to intersection point
v_trans_x=ptPrevShift_x+v_prev_x*sf-inPt.x;v_trans_y=ptPrevShift_y+v_prev_y*sf-inPt.y;// Don't normalize!, otherwise sharp corners become ugly
//  but prevent crazy spikes
var v_trans_lensq=v_trans_x*v_trans_x+v_trans_y*v_trans_y;if(v_trans_lensq<=2){return new Vector2(v_trans_x,v_trans_y);}else {shrink_by=Math.sqrt(v_trans_lensq/2);}}else {// handle special case of collinear edges
var direction_eq=false;// assumes: opposite
if(v_prev_x>Number.EPSILON){if(v_next_x>Number.EPSILON){direction_eq=true;}}else {if(v_prev_x<-Number.EPSILON){if(v_next_x<-Number.EPSILON){direction_eq=true;}}else {if(Math.sign(v_prev_y)===Math.sign(v_next_y)){direction_eq=true;}}}if(direction_eq){// console.log("Warning: lines are a straight sequence");
v_trans_x=-v_prev_y;v_trans_y=v_prev_x;shrink_by=Math.sqrt(v_prev_lensq);}else {// console.log("Warning: lines are a straight spike");
v_trans_x=v_prev_x;v_trans_y=v_prev_y;shrink_by=Math.sqrt(v_prev_lensq/2);}}return new Vector2(v_trans_x/shrink_by,v_trans_y/shrink_by);}var contourMovements=[];for(var _i204=0,il=contour.length,j=il-1,k=_i204+1;_i204<il;_i204++,j++,k++){if(j===il)j=0;if(k===il)k=0;//  (j)---(i)---(k)
// console.log('i,j,k', i, j , k)
contourMovements[_i204]=getBevelVec(contour[_i204],contour[j],contour[k]);}var holesMovements=[];var oneHoleMovements,verticesMovements=contourMovements.concat();for(var _h2=0,_hl2=holes.length;_h2<_hl2;_h2++){var _ahole2=holes[_h2];oneHoleMovements=[];for(var _i205=0,_il26=_ahole2.length,_j12=_il26-1,_k=_i205+1;_i205<_il26;_i205++,_j12++,_k++){if(_j12===_il26)_j12=0;if(_k===_il26)_k=0;//  (j)---(i)---(k)
oneHoleMovements[_i205]=getBevelVec(_ahole2[_i205],_ahole2[_j12],_ahole2[_k]);}holesMovements.push(oneHoleMovements);verticesMovements=verticesMovements.concat(oneHoleMovements);}// Loop bevelSegments, 1 for the front, 1 for the back
for(var b=0;b<bevelSegments;b++){//for ( b = bevelSegments; b > 0; b -- ) {
var t=b/bevelSegments;var z=bevelThickness*Math.cos(t*Math.PI/2);var _bs=bevelSize*Math.sin(t*Math.PI/2)+bevelOffset;// contract shape
for(var _i206=0,_il27=contour.length;_i206<_il27;_i206++){var vert=scalePt2(contour[_i206],contourMovements[_i206],_bs);v(vert.x,vert.y,-z);}// expand holes
for(var _h3=0,_hl3=holes.length;_h3<_hl3;_h3++){var _ahole3=holes[_h3];oneHoleMovements=holesMovements[_h3];for(var _i207=0,_il28=_ahole3.length;_i207<_il28;_i207++){var _vert=scalePt2(_ahole3[_i207],oneHoleMovements[_i207],_bs);v(_vert.x,_vert.y,-z);}}}var bs=bevelSize+bevelOffset;// Back facing vertices
for(var _i208=0;_i208<vlen;_i208++){var _vert2=bevelEnabled?scalePt2(vertices[_i208],verticesMovements[_i208],bs):vertices[_i208];if(!extrudeByPath){v(_vert2.x,_vert2.y,0);}else {// v( vert.x, vert.y + extrudePts[ 0 ].y, extrudePts[ 0 ].x );
normal.copy(splineTube.normals[0]).multiplyScalar(_vert2.x);binormal.copy(splineTube.binormals[0]).multiplyScalar(_vert2.y);position2.copy(extrudePts[0]).add(normal).add(binormal);v(position2.x,position2.y,position2.z);}}// Add stepped vertices...
// Including front facing vertices
for(var s=1;s<=steps;s++){for(var _i209=0;_i209<vlen;_i209++){var _vert3=bevelEnabled?scalePt2(vertices[_i209],verticesMovements[_i209],bs):vertices[_i209];if(!extrudeByPath){v(_vert3.x,_vert3.y,depth/steps*s);}else {// v( vert.x, vert.y + extrudePts[ s - 1 ].y, extrudePts[ s - 1 ].x );
normal.copy(splineTube.normals[s]).multiplyScalar(_vert3.x);binormal.copy(splineTube.binormals[s]).multiplyScalar(_vert3.y);position2.copy(extrudePts[s]).add(normal).add(binormal);v(position2.x,position2.y,position2.z);}}}// Add bevel segments planes
//for ( b = 1; b <= bevelSegments; b ++ ) {
for(var _b5=bevelSegments-1;_b5>=0;_b5--){var _t=_b5/bevelSegments;var _z2=bevelThickness*Math.cos(_t*Math.PI/2);var _bs2=bevelSize*Math.sin(_t*Math.PI/2)+bevelOffset;// contract shape
for(var _i210=0,_il29=contour.length;_i210<_il29;_i210++){var _vert4=scalePt2(contour[_i210],contourMovements[_i210],_bs2);v(_vert4.x,_vert4.y,depth+_z2);}// expand holes
for(var _h4=0,_hl4=holes.length;_h4<_hl4;_h4++){var _ahole4=holes[_h4];oneHoleMovements=holesMovements[_h4];for(var _i211=0,_il30=_ahole4.length;_i211<_il30;_i211++){var _vert5=scalePt2(_ahole4[_i211],oneHoleMovements[_i211],_bs2);if(!extrudeByPath){v(_vert5.x,_vert5.y,depth+_z2);}else {v(_vert5.x,_vert5.y+extrudePts[steps-1].y,extrudePts[steps-1].x+_z2);}}}}/* Faces */ // Top and bottom faces
if(!options.openEnded){//xzw add 可以选择开口，不创建Top and bottom faces
buildLidFaces();}// Sides faces
buildSideFaces();/////  Internal functions
function buildLidFaces(){var start=verticesArray.length/3;if(bevelEnabled){var layer=0;// steps + 1
var offset=vlen*layer;// Bottom faces
for(var _i212=0;_i212<flen;_i212++){var face=faces[_i212];f3(face[2]+offset,face[1]+offset,face[0]+offset);}layer=steps+bevelSegments*2;offset=vlen*layer;// Top faces
for(var _i213=0;_i213<flen;_i213++){var _face5=faces[_i213];f3(_face5[0]+offset,_face5[1]+offset,_face5[2]+offset);}}else {// Bottom faces
for(var _i214=0;_i214<flen;_i214++){var _face6=faces[_i214];f3(_face6[2],_face6[1],_face6[0]);}// Top faces
for(var _i215=0;_i215<flen;_i215++){var _face7=faces[_i215];f3(_face7[0]+vlen*steps,_face7[1]+vlen*steps,_face7[2]+vlen*steps);}}scope.addGroup(start,verticesArray.length/3-start,0);}// Create faces for the z-sides of the shape
function buildSideFaces(){var start=verticesArray.length/3;var layeroffset=0;sidewalls(contour,layeroffset);layeroffset+=contour.length;for(var _h5=0,_hl5=holes.length;_h5<_hl5;_h5++){var _ahole5=holes[_h5];sidewalls(_ahole5,layeroffset);//, true
layeroffset+=_ahole5.length;}scope.addGroup(start,verticesArray.length/3-start,1);}function sidewalls(contour,layeroffset){var i=contour.length;var shapeDontClose=shape.dontClose;//xzw add不闭合
while(--i>=0){if(shapeDontClose&&i==0)break;//xzw add
var _j13=i;var _k2=i-1;if(_k2<0)_k2=contour.length-1;//console.log('b', i,j, i-1, k,vertices.length);
for(var _s4=0,sl=steps+bevelSegments*2;_s4<sl;_s4++){var slen1=vlen*_s4;var slen2=vlen*(_s4+1);var a=layeroffset+_j13+slen1,_b6=layeroffset+_k2+slen1,c=layeroffset+_k2+slen2,d=layeroffset+_j13+slen2;f4(a,_b6,c,d);}}}function v(x,y,z){placeholder.push(x);placeholder.push(y);placeholder.push(z);}function f3(a,b,c){addVertex(a);addVertex(b);addVertex(c);var nextIndex=verticesArray.length/3;var uvs=uvgen.generateTopUV(scope,verticesArray,nextIndex-3,nextIndex-2,nextIndex-1);addUV(uvs[0]);addUV(uvs[1]);addUV(uvs[2]);}function f4(a,b,c,d){addVertex(a);addVertex(b);addVertex(d);addVertex(b);addVertex(c);addVertex(d);var nextIndex=verticesArray.length/3;var uvs=uvgen.generateSideWallUV(scope,verticesArray,nextIndex-6,nextIndex-3,nextIndex-2,nextIndex-1);addUV(uvs[0]);addUV(uvs[1]);addUV(uvs[3]);addUV(uvs[1]);addUV(uvs[2]);addUV(uvs[3]);}function addVertex(index){verticesArray.push(placeholder[index*3+0]);verticesArray.push(placeholder[index*3+1]);verticesArray.push(placeholder[index*3+2]);}function addUV(vector2){uvArray.push(vector2.x);uvArray.push(vector2.y);}}}toJSON(){var data=BufferGeometry.prototype.toJSON.call(this);var shapes=this.parameters.shapes;var options=this.parameters.options;return toJSON(shapes,options,data);}}var WorldUVGenerator={generateTopUV:function generateTopUV(geometry,vertices,indexA,indexB,indexC){var a_x=vertices[indexA*3];var a_y=vertices[indexA*3+1];var b_x=vertices[indexB*3];var b_y=vertices[indexB*3+1];var c_x=vertices[indexC*3];var c_y=vertices[indexC*3+1];return [new Vector2(a_x,a_y),new Vector2(b_x,b_y),new Vector2(c_x,c_y)];},generateSideWallUV:function generateSideWallUV(geometry,vertices,indexA,indexB,indexC,indexD){var a_x=vertices[indexA*3];var a_y=vertices[indexA*3+1];var a_z=vertices[indexA*3+2];var b_x=vertices[indexB*3];var b_y=vertices[indexB*3+1];var b_z=vertices[indexB*3+2];var c_x=vertices[indexC*3];var c_y=vertices[indexC*3+1];var c_z=vertices[indexC*3+2];var d_x=vertices[indexD*3];var d_y=vertices[indexD*3+1];var d_z=vertices[indexD*3+2];if(Math.abs(a_y-b_y)<0.01){return [new Vector2(a_x,1-a_z),new Vector2(b_x,1-b_z),new Vector2(c_x,1-c_z),new Vector2(d_x,1-d_z)];}else {return [new Vector2(a_y,1-a_z),new Vector2(b_y,1-b_z),new Vector2(c_y,1-c_z),new Vector2(d_y,1-d_z)];}}};function toJSON(shapes,options,data){data.shapes=[];if(Array.isArray(shapes)){for(var _i216=0,l=shapes.length;_i216<l;_i216++){var shape=shapes[_i216];data.shapes.push(shape.uuid);}}else {data.shapes.push(shapes.uuid);}if(options.extrudePath!==undefined)data.options.extrudePath=options.extrudePath.toJSON();return data;}/**
 * Creates extruded geometry from a path shape.
 *
 * parameters = {
 *
 *  curveSegments: <int>, // number of points on the curves
 *  steps: <int>, // number of points for z-side extrusions / used for subdividing segments of extrude spline too
 *  depth: <float>, // Depth to extrude the shape
 *
 *  bevelEnabled: <bool>, // turn on bevel
 *  bevelThickness: <float>, // how deep into the original shape bevel goes
 *  bevelSize: <float>, // how far from shape outline (including bevelOffset) is bevel
 *  bevelOffset: <float>, // how far from shape outline does bevel start
 *  bevelSegments: <int>, // number of bevel layers
 *
 *  extrudePath: <THREE.Curve> // curve to extrude shape along
 *
 *  UVGenerator: <Object> // object that provides UV generator functions
 *
 * }
 */class ExtrudeGeometry extends Geometry{constructor(shapes,options){super();this.type='ExtrudeGeometry';this.parameters={shapes:shapes,options:options};this.fromBufferGeometry(new ExtrudeBufferGeometry(shapes,options));this.mergeVertices();}toJSON(){var data=super.toJSON();var shapes=this.parameters.shapes;var options=this.parameters.options;return toJSON$1(shapes,options,data);}}function toJSON$1(shapes,options,data){data.shapes=[];if(Array.isArray(shapes)){for(var _i217=0,l=shapes.length;_i217<l;_i217++){var shape=shapes[_i217];data.shapes.push(shape.uuid);}}else {data.shapes.push(shapes.uuid);}if(options.extrudePath!==undefined)data.options.extrudePath=options.extrudePath.toJSON();return data;}/**
 * Parametric Surfaces Geometry
 * based on the brilliant article by @prideout https://prideout.net/blog/old/blog/index.html@p=44.html
 */function ParametricBufferGeometry(func,slices,stacks){BufferGeometry.call(this);this.type='ParametricBufferGeometry';this.parameters={func:func,slices:slices,stacks:stacks};// buffers
var indices=[];var vertices=[];var normals=[];var uvs=[];var EPS=0.00001;var normal=new Vector3();var p0=new Vector3(),p1=new Vector3();var pu=new Vector3(),pv=new Vector3();if(func.length<3){console.error('THREE.ParametricGeometry: Function must now modify a Vector3 as third parameter.');}// generate vertices, normals and uvs
var sliceCount=slices+1;for(var _i221=0;_i221<=stacks;_i221++){var v=_i221/stacks;for(var j=0;j<=slices;j++){var u=j/slices;// vertex
func(u,v,p0);vertices.push(p0.x,p0.y,p0.z);// normal
// approximate tangent vectors via finite differences
if(u-EPS>=0){func(u-EPS,v,p1);pu.subVectors(p0,p1);}else {func(u+EPS,v,p1);pu.subVectors(p1,p0);}if(v-EPS>=0){func(u,v-EPS,p1);pv.subVectors(p0,p1);}else {func(u,v+EPS,p1);pv.subVectors(p1,p0);}// cross product of tangent vectors returns surface normal
normal.crossVectors(pu,pv).normalize();normals.push(normal.x,normal.y,normal.z);// uv
uvs.push(u,v);}}// generate indices
for(var _i222=0;_i222<stacks;_i222++){for(var _j16=0;_j16<slices;_j16++){var a=_i222*sliceCount+_j16;var b=_i222*sliceCount+_j16+1;var c=(_i222+1)*sliceCount+_j16+1;var d=(_i222+1)*sliceCount+_j16;// faces one and two
indices.push(a,b,d);indices.push(b,c,d);}}// build geometry
this.setIndex(indices);this.setAttribute('position',new Float32BufferAttribute(vertices,3));this.setAttribute('normal',new Float32BufferAttribute(normals,3));this.setAttribute('uv',new Float32BufferAttribute(uvs,2));}ParametricBufferGeometry.prototype=Object.create(BufferGeometry.prototype);ParametricBufferGeometry.prototype.constructor=ParametricBufferGeometry;/**
 * Parametric Surfaces Geometry
 * based on the brilliant article by @prideout https://prideout.net/blog/old/blog/index.html@p=44.html
 */function ParametricGeometry(func,slices,stacks){Geometry.call(this);this.type='ParametricGeometry';this.parameters={func:func,slices:slices,stacks:stacks};this.fromBufferGeometry(new ParametricBufferGeometry(func,slices,stacks));this.mergeVertices();}ParametricGeometry.prototype=Object.create(Geometry.prototype);ParametricGeometry.prototype.constructor=ParametricGeometry;class ShapeBufferGeometry extends BufferGeometry{constructor(shapes){var curveSegments=arguments.length>1&&arguments[1]!==undefined?arguments[1]:12;super();this.type='ShapeBufferGeometry';this.parameters={shapes:shapes,curveSegments:curveSegments};// buffers
var indices=[];var vertices=[];var normals=[];var uvs=[];// helper variables
var groupStart=0;var groupCount=0;// allow single and array values for "shapes" parameter
if(Array.isArray(shapes)===false){addShape(shapes);}else {for(var _i225=0;_i225<shapes.length;_i225++){addShape(shapes[_i225]);this.addGroup(groupStart,groupCount,_i225);// enables MultiMaterial support
groupStart+=groupCount;groupCount=0;}}// build geometry
this.setIndex(indices);this.setAttribute('position',new Float32BufferAttribute(vertices,3));this.setAttribute('normal',new Float32BufferAttribute(normals,3));this.setAttribute('uv',new Float32BufferAttribute(uvs,2));// helper functions
function addShape(shape){var indexOffset=vertices.length/3;var points=shape.extractPoints(curveSegments);var shapeVertices=points.shape;var shapeHoles=points.holes;// check direction of vertices
if(ShapeUtils.isClockWise(shapeVertices)===false){shapeVertices=shapeVertices.reverse();}for(var _i226=0,l=shapeHoles.length;_i226<l;_i226++){var shapeHole=shapeHoles[_i226];if(ShapeUtils.isClockWise(shapeHole)===true){shapeHoles[_i226]=shapeHole.reverse();}}var faces=ShapeUtils.triangulateShape(shapeVertices,shapeHoles);// join vertices of inner and outer paths to a single array
for(var _i227=0,_l10=shapeHoles.length;_i227<_l10;_i227++){var _shapeHole=shapeHoles[_i227];shapeVertices=shapeVertices.concat(_shapeHole);}// vertices, normals, uvs
for(var _i228=0,_l11=shapeVertices.length;_i228<_l11;_i228++){var vertex=shapeVertices[_i228];vertices.push(vertex.x,vertex.y,0);normals.push(0,0,1);uvs.push(vertex.x,vertex.y);// world uvs
}// incides
for(var _i229=0,_l12=faces.length;_i229<_l12;_i229++){var face=faces[_i229];var a=face[0]+indexOffset;var b=face[1]+indexOffset;var c=face[2]+indexOffset;indices.push(a,b,c);groupCount+=3;}}}toJSON(){var data=BufferGeometry.prototype.toJSON.call(this);var shapes=this.parameters.shapes;return toJSON$2(shapes,data);}}function toJSON$2(shapes,data){data.shapes=[];if(Array.isArray(shapes)){for(var _i230=0,l=shapes.length;_i230<l;_i230++){var shape=shapes[_i230];data.shapes.push(shape.uuid);}}else {data.shapes.push(shapes.uuid);}return data;}class ShapeGeometry extends Geometry{constructor(shapes,curveSegments){super();this.type='ShapeGeometry';if(typeof curveSegments==='object'){console.warn('THREE.ShapeGeometry: Options parameter has been removed.');curveSegments=curveSegments.curveSegments;}this.parameters={shapes:shapes,curveSegments:curveSegments};this.fromBufferGeometry(new ShapeBufferGeometry(shapes,curveSegments));this.mergeVertices();}toJSON(){var data=Geometry.prototype.toJSON.call(this);var shapes=this.parameters.shapes;return toJSON$3(shapes,data);}}function toJSON$3(shapes,data){data.shapes=[];if(Array.isArray(shapes)){for(var _i231=0,l=shapes.length;_i231<l;_i231++){var shape=shapes[_i231];data.shapes.push(shape.uuid);}}else {data.shapes.push(shapes.uuid);}return data;}/**
 * parameters = {
 *  color: <THREE.Color>
 * }
 */function ShadowMaterial(parameters){Material.call(this);this.type='ShadowMaterial';this.color=new Color(0x000000);this.transparent=true;this.setValues(parameters);}ShadowMaterial.prototype=Object.create(Material.prototype);ShadowMaterial.prototype.constructor=ShadowMaterial;ShadowMaterial.prototype.isShadowMaterial=true;ShadowMaterial.prototype.copy=function(source){Material.prototype.copy.call(this,source);this.color.copy(source.color);return this;};function RawShaderMaterial(parameters){ShaderMaterial.call(this,parameters);this.type='RawShaderMaterial';}RawShaderMaterial.prototype=Object.create(ShaderMaterial.prototype);RawShaderMaterial.prototype.constructor=RawShaderMaterial;RawShaderMaterial.prototype.isRawShaderMaterial=true;/**
 * parameters = {
 *  color: <hex>,
 *  roughness: <float>,
 *  metalness: <float>,
 *  opacity: <float>,
 *
 *  map: new THREE.Texture( <Image> ),
 *
 *  lightMap: new THREE.Texture( <Image> ),
 *  lightMapIntensity: <float>
 *
 *  aoMap: new THREE.Texture( <Image> ),
 *  aoMapIntensity: <float>
 *
 *  emissive: <hex>,
 *  emissiveIntensity: <float>
 *  emissiveMap: new THREE.Texture( <Image> ),
 *
 *  bumpMap: new THREE.Texture( <Image> ),
 *  bumpScale: <float>,
 *
 *  normalMap: new THREE.Texture( <Image> ),
 *  normalMapType: THREE.TangentSpaceNormalMap,
 *  normalScale: <Vector2>,
 *
 *  displacementMap: new THREE.Texture( <Image> ),
 *  displacementScale: <float>,
 *  displacementBias: <float>,
 *
 *  roughnessMap: new THREE.Texture( <Image> ),
 *
 *  metalnessMap: new THREE.Texture( <Image> ),
 *
 *  alphaMap: new THREE.Texture( <Image> ),
 *
 *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
 *  envMapIntensity: <float>
 *
 *  refractionRatio: <float>,
 *
 *  wireframe: <boolean>,
 *  wireframeLinewidth: <float>,
 *
 *  skinning: <bool>,
 *  morphTargets: <bool>,
 *  morphNormals: <bool>
 * }
 */function MeshStandardMaterial(parameters){Material.call(this);this.defines={'STANDARD':''};this.type='MeshStandardMaterial';this.color=new Color(0xffffff);// diffuse
this.roughness=1.0;this.metalness=0.0;this.map=null;this.lightMap=null;this.lightMapIntensity=1.0;this.aoMap=null;this.aoMapIntensity=1.0;this.emissive=new Color(0x000000);this.emissiveIntensity=1.0;this.emissiveMap=null;this.bumpMap=null;this.bumpScale=1;this.normalMap=null;this.normalMapType=TangentSpaceNormalMap;this.normalScale=new Vector2(1,1);this.displacementMap=null;this.displacementScale=1;this.displacementBias=0;this.roughnessMap=null;this.metalnessMap=null;this.alphaMap=null;this.envMap=null;this.envMapIntensity=1.0;this.refractionRatio=0.98;this.wireframe=false;this.wireframeLinewidth=1;this.wireframeLinecap='round';this.wireframeLinejoin='round';this.skinning=false;this.morphTargets=false;this.morphNormals=false;this.vertexTangents=false;this.setValues(parameters);}MeshStandardMaterial.prototype=Object.create(Material.prototype);MeshStandardMaterial.prototype.constructor=MeshStandardMaterial;MeshStandardMaterial.prototype.isMeshStandardMaterial=true;MeshStandardMaterial.prototype.copy=function(source){Material.prototype.copy.call(this,source);this.defines={'STANDARD':''};this.color.copy(source.color);this.roughness=source.roughness;this.metalness=source.metalness;this.map=source.map;this.lightMap=source.lightMap;this.lightMapIntensity=source.lightMapIntensity;this.aoMap=source.aoMap;this.aoMapIntensity=source.aoMapIntensity;this.emissive.copy(source.emissive);this.emissiveMap=source.emissiveMap;this.emissiveIntensity=source.emissiveIntensity;this.bumpMap=source.bumpMap;this.bumpScale=source.bumpScale;this.normalMap=source.normalMap;this.normalMapType=source.normalMapType;this.normalScale.copy(source.normalScale);this.displacementMap=source.displacementMap;this.displacementScale=source.displacementScale;this.displacementBias=source.displacementBias;this.roughnessMap=source.roughnessMap;this.metalnessMap=source.metalnessMap;this.alphaMap=source.alphaMap;this.envMap=source.envMap;this.envMapIntensity=source.envMapIntensity;this.refractionRatio=source.refractionRatio;this.wireframe=source.wireframe;this.wireframeLinewidth=source.wireframeLinewidth;this.wireframeLinecap=source.wireframeLinecap;this.wireframeLinejoin=source.wireframeLinejoin;this.skinning=source.skinning;this.morphTargets=source.morphTargets;this.morphNormals=source.morphNormals;this.vertexTangents=source.vertexTangents;return this;};/**
 * parameters = {
 *  clearcoat: <float>,
 *  clearcoatMap: new THREE.Texture( <Image> ),
 *  clearcoatRoughness: <float>,
 *  clearcoatRoughnessMap: new THREE.Texture( <Image> ),
 *  clearcoatNormalScale: <Vector2>,
 *  clearcoatNormalMap: new THREE.Texture( <Image> ),
 *
 *  reflectivity: <float>,
 *  ior: <float>,
 *
 *  sheen: <Color>,
 *
 *  transmission: <float>,
 *  transmissionMap: new THREE.Texture( <Image> )
 * }
 */function MeshPhysicalMaterial(parameters){MeshStandardMaterial.call(this);this.defines={'STANDARD':'','PHYSICAL':''};this.type='MeshPhysicalMaterial';this.clearcoat=0.0;this.clearcoatMap=null;this.clearcoatRoughness=0.0;this.clearcoatRoughnessMap=null;this.clearcoatNormalScale=new Vector2(1,1);this.clearcoatNormalMap=null;this.reflectivity=0.5;// maps to F0 = 0.04
Object.defineProperty(this,'ior',{get:function get(){return (1+0.4*this.reflectivity)/(1-0.4*this.reflectivity);},set:function set(ior){this.reflectivity=MathUtils.clamp(2.5*(ior-1)/(ior+1),0,1);}});this.sheen=null;// null will disable sheen bsdf
this.transmission=0.0;this.transmissionMap=null;this.setValues(parameters);}MeshPhysicalMaterial.prototype=Object.create(MeshStandardMaterial.prototype);MeshPhysicalMaterial.prototype.constructor=MeshPhysicalMaterial;MeshPhysicalMaterial.prototype.isMeshPhysicalMaterial=true;MeshPhysicalMaterial.prototype.copy=function(source){MeshStandardMaterial.prototype.copy.call(this,source);this.defines={'STANDARD':'','PHYSICAL':''};this.clearcoat=source.clearcoat;this.clearcoatMap=source.clearcoatMap;this.clearcoatRoughness=source.clearcoatRoughness;this.clearcoatRoughnessMap=source.clearcoatRoughnessMap;this.clearcoatNormalMap=source.clearcoatNormalMap;this.clearcoatNormalScale.copy(source.clearcoatNormalScale);this.reflectivity=source.reflectivity;if(source.sheen){this.sheen=(this.sheen||new Color()).copy(source.sheen);}else {this.sheen=null;}this.transmission=source.transmission;this.transmissionMap=source.transmissionMap;return this;};/**
 * parameters = {
 *  color: <hex>,
 *  specular: <hex>,
 *  shininess: <float>,
 *  opacity: <float>,
 *
 *  map: new THREE.Texture( <Image> ),
 *
 *  lightMap: new THREE.Texture( <Image> ),
 *  lightMapIntensity: <float>
 *
 *  aoMap: new THREE.Texture( <Image> ),
 *  aoMapIntensity: <float>
 *
 *  emissive: <hex>,
 *  emissiveIntensity: <float>
 *  emissiveMap: new THREE.Texture( <Image> ),
 *
 *  bumpMap: new THREE.Texture( <Image> ),
 *  bumpScale: <float>,
 *
 *  normalMap: new THREE.Texture( <Image> ),
 *  normalMapType: THREE.TangentSpaceNormalMap,
 *  normalScale: <Vector2>,
 *
 *  displacementMap: new THREE.Texture( <Image> ),
 *  displacementScale: <float>,
 *  displacementBias: <float>,
 *
 *  specularMap: new THREE.Texture( <Image> ),
 *
 *  alphaMap: new THREE.Texture( <Image> ),
 *
 *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
 *  combine: THREE.MultiplyOperation,
 *  reflectivity: <float>,
 *  refractionRatio: <float>,
 *
 *  wireframe: <boolean>,
 *  wireframeLinewidth: <float>,
 *
 *  skinning: <bool>,
 *  morphTargets: <bool>,
 *  morphNormals: <bool>
 * }
 */function MeshPhongMaterial(parameters){Material.call(this);this.type='MeshPhongMaterial';this.color=new Color(0xffffff);// diffuse
this.specular=new Color(0x111111);this.shininess=30;this.map=null;this.lightMap=null;this.lightMapIntensity=1.0;this.aoMap=null;this.aoMapIntensity=1.0;this.emissive=new Color(0x000000);this.emissiveIntensity=1.0;this.emissiveMap=null;this.bumpMap=null;this.bumpScale=1;this.normalMap=null;this.normalMapType=TangentSpaceNormalMap;this.normalScale=new Vector2(1,1);this.displacementMap=null;this.displacementScale=1;this.displacementBias=0;this.specularMap=null;this.alphaMap=null;this.envMap=null;this.combine=MultiplyOperation;this.reflectivity=1;this.refractionRatio=0.98;this.wireframe=false;this.wireframeLinewidth=1;this.wireframeLinecap='round';this.wireframeLinejoin='round';this.skinning=false;this.morphTargets=false;this.morphNormals=false;this.setValues(parameters);}MeshPhongMaterial.prototype=Object.create(Material.prototype);MeshPhongMaterial.prototype.constructor=MeshPhongMaterial;MeshPhongMaterial.prototype.isMeshPhongMaterial=true;MeshPhongMaterial.prototype.copy=function(source){Material.prototype.copy.call(this,source);this.color.copy(source.color);this.specular.copy(source.specular);this.shininess=source.shininess;this.map=source.map;this.lightMap=source.lightMap;this.lightMapIntensity=source.lightMapIntensity;this.aoMap=source.aoMap;this.aoMapIntensity=source.aoMapIntensity;this.emissive.copy(source.emissive);this.emissiveMap=source.emissiveMap;this.emissiveIntensity=source.emissiveIntensity;this.bumpMap=source.bumpMap;this.bumpScale=source.bumpScale;this.normalMap=source.normalMap;this.normalMapType=source.normalMapType;this.normalScale.copy(source.normalScale);this.displacementMap=source.displacementMap;this.displacementScale=source.displacementScale;this.displacementBias=source.displacementBias;this.specularMap=source.specularMap;this.alphaMap=source.alphaMap;this.envMap=source.envMap;this.combine=source.combine;this.reflectivity=source.reflectivity;this.refractionRatio=source.refractionRatio;this.wireframe=source.wireframe;this.wireframeLinewidth=source.wireframeLinewidth;this.wireframeLinecap=source.wireframeLinecap;this.wireframeLinejoin=source.wireframeLinejoin;this.skinning=source.skinning;this.morphTargets=source.morphTargets;this.morphNormals=source.morphNormals;return this;};/**
 * parameters = {
 *  color: <hex>,
 *
 *  map: new THREE.Texture( <Image> ),
 *  gradientMap: new THREE.Texture( <Image> ),
 *
 *  lightMap: new THREE.Texture( <Image> ),
 *  lightMapIntensity: <float>
 *
 *  aoMap: new THREE.Texture( <Image> ),
 *  aoMapIntensity: <float>
 *
 *  emissive: <hex>,
 *  emissiveIntensity: <float>
 *  emissiveMap: new THREE.Texture( <Image> ),
 *
 *  bumpMap: new THREE.Texture( <Image> ),
 *  bumpScale: <float>,
 *
 *  normalMap: new THREE.Texture( <Image> ),
 *  normalMapType: THREE.TangentSpaceNormalMap,
 *  normalScale: <Vector2>,
 *
 *  displacementMap: new THREE.Texture( <Image> ),
 *  displacementScale: <float>,
 *  displacementBias: <float>,
 *
 *  alphaMap: new THREE.Texture( <Image> ),
 *
 *  wireframe: <boolean>,
 *  wireframeLinewidth: <float>,
 *
 *  skinning: <bool>,
 *  morphTargets: <bool>,
 *  morphNormals: <bool>
 * }
 */function MeshToonMaterial(parameters){Material.call(this);this.defines={'TOON':''};this.type='MeshToonMaterial';this.color=new Color(0xffffff);this.map=null;this.gradientMap=null;this.lightMap=null;this.lightMapIntensity=1.0;this.aoMap=null;this.aoMapIntensity=1.0;this.emissive=new Color(0x000000);this.emissiveIntensity=1.0;this.emissiveMap=null;this.bumpMap=null;this.bumpScale=1;this.normalMap=null;this.normalMapType=TangentSpaceNormalMap;this.normalScale=new Vector2(1,1);this.displacementMap=null;this.displacementScale=1;this.displacementBias=0;this.alphaMap=null;this.wireframe=false;this.wireframeLinewidth=1;this.wireframeLinecap='round';this.wireframeLinejoin='round';this.skinning=false;this.morphTargets=false;this.morphNormals=false;this.setValues(parameters);}MeshToonMaterial.prototype=Object.create(Material.prototype);MeshToonMaterial.prototype.constructor=MeshToonMaterial;MeshToonMaterial.prototype.isMeshToonMaterial=true;MeshToonMaterial.prototype.copy=function(source){Material.prototype.copy.call(this,source);this.color.copy(source.color);this.map=source.map;this.gradientMap=source.gradientMap;this.lightMap=source.lightMap;this.lightMapIntensity=source.lightMapIntensity;this.aoMap=source.aoMap;this.aoMapIntensity=source.aoMapIntensity;this.emissive.copy(source.emissive);this.emissiveMap=source.emissiveMap;this.emissiveIntensity=source.emissiveIntensity;this.bumpMap=source.bumpMap;this.bumpScale=source.bumpScale;this.normalMap=source.normalMap;this.normalMapType=source.normalMapType;this.normalScale.copy(source.normalScale);this.displacementMap=source.displacementMap;this.displacementScale=source.displacementScale;this.displacementBias=source.displacementBias;this.alphaMap=source.alphaMap;this.wireframe=source.wireframe;this.wireframeLinewidth=source.wireframeLinewidth;this.wireframeLinecap=source.wireframeLinecap;this.wireframeLinejoin=source.wireframeLinejoin;this.skinning=source.skinning;this.morphTargets=source.morphTargets;this.morphNormals=source.morphNormals;return this;};/**
 * parameters = {
 *  opacity: <float>,
 *
 *  bumpMap: new THREE.Texture( <Image> ),
 *  bumpScale: <float>,
 *
 *  normalMap: new THREE.Texture( <Image> ),
 *  normalMapType: THREE.TangentSpaceNormalMap,
 *  normalScale: <Vector2>,
 *
 *  displacementMap: new THREE.Texture( <Image> ),
 *  displacementScale: <float>,
 *  displacementBias: <float>,
 *
 *  wireframe: <boolean>,
 *  wireframeLinewidth: <float>
 *
 *  skinning: <bool>,
 *  morphTargets: <bool>,
 *  morphNormals: <bool>
 * }
 */function MeshNormalMaterial(parameters){Material.call(this);this.type='MeshNormalMaterial';this.bumpMap=null;this.bumpScale=1;this.normalMap=null;this.normalMapType=TangentSpaceNormalMap;this.normalScale=new Vector2(1,1);this.displacementMap=null;this.displacementScale=1;this.displacementBias=0;this.wireframe=false;this.wireframeLinewidth=1;this.fog=false;this.skinning=false;this.morphTargets=false;this.morphNormals=false;this.setValues(parameters);}MeshNormalMaterial.prototype=Object.create(Material.prototype);MeshNormalMaterial.prototype.constructor=MeshNormalMaterial;MeshNormalMaterial.prototype.isMeshNormalMaterial=true;MeshNormalMaterial.prototype.copy=function(source){Material.prototype.copy.call(this,source);this.bumpMap=source.bumpMap;this.bumpScale=source.bumpScale;this.normalMap=source.normalMap;this.normalMapType=source.normalMapType;this.normalScale.copy(source.normalScale);this.displacementMap=source.displacementMap;this.displacementScale=source.displacementScale;this.displacementBias=source.displacementBias;this.wireframe=source.wireframe;this.wireframeLinewidth=source.wireframeLinewidth;this.skinning=source.skinning;this.morphTargets=source.morphTargets;this.morphNormals=source.morphNormals;return this;};/**
 * parameters = {
 *  color: <hex>,
 *  opacity: <float>,
 *
 *  map: new THREE.Texture( <Image> ),
 *
 *  lightMap: new THREE.Texture( <Image> ),
 *  lightMapIntensity: <float>
 *
 *  aoMap: new THREE.Texture( <Image> ),
 *  aoMapIntensity: <float>
 *
 *  emissive: <hex>,
 *  emissiveIntensity: <float>
 *  emissiveMap: new THREE.Texture( <Image> ),
 *
 *  specularMap: new THREE.Texture( <Image> ),
 *
 *  alphaMap: new THREE.Texture( <Image> ),
 *
 *  envMap: new THREE.CubeTexture( [posx, negx, posy, negy, posz, negz] ),
 *  combine: THREE.Multiply,
 *  reflectivity: <float>,
 *  refractionRatio: <float>,
 *
 *  wireframe: <boolean>,
 *  wireframeLinewidth: <float>,
 *
 *  skinning: <bool>,
 *  morphTargets: <bool>,
 *  morphNormals: <bool>
 * }
 */function MeshLambertMaterial(parameters){Material.call(this);this.type='MeshLambertMaterial';this.color=new Color(0xffffff);// diffuse
this.map=null;this.lightMap=null;this.lightMapIntensity=1.0;this.aoMap=null;this.aoMapIntensity=1.0;this.emissive=new Color(0x000000);this.emissiveIntensity=1.0;this.emissiveMap=null;this.specularMap=null;this.alphaMap=null;this.envMap=null;this.combine=MultiplyOperation;this.reflectivity=1;this.refractionRatio=0.98;this.wireframe=false;this.wireframeLinewidth=1;this.wireframeLinecap='round';this.wireframeLinejoin='round';this.skinning=false;this.morphTargets=false;this.morphNormals=false;this.setValues(parameters);}MeshLambertMaterial.prototype=Object.create(Material.prototype);MeshLambertMaterial.prototype.constructor=MeshLambertMaterial;MeshLambertMaterial.prototype.isMeshLambertMaterial=true;MeshLambertMaterial.prototype.copy=function(source){Material.prototype.copy.call(this,source);this.color.copy(source.color);this.map=source.map;this.lightMap=source.lightMap;this.lightMapIntensity=source.lightMapIntensity;this.aoMap=source.aoMap;this.aoMapIntensity=source.aoMapIntensity;this.emissive.copy(source.emissive);this.emissiveMap=source.emissiveMap;this.emissiveIntensity=source.emissiveIntensity;this.specularMap=source.specularMap;this.alphaMap=source.alphaMap;this.envMap=source.envMap;this.combine=source.combine;this.reflectivity=source.reflectivity;this.refractionRatio=source.refractionRatio;this.wireframe=source.wireframe;this.wireframeLinewidth=source.wireframeLinewidth;this.wireframeLinecap=source.wireframeLinecap;this.wireframeLinejoin=source.wireframeLinejoin;this.skinning=source.skinning;this.morphTargets=source.morphTargets;this.morphNormals=source.morphNormals;return this;};/**
 * parameters = {
 *  color: <hex>,
 *  opacity: <float>,
 *
 *  matcap: new THREE.Texture( <Image> ),
 *
 *  map: new THREE.Texture( <Image> ),
 *
 *  bumpMap: new THREE.Texture( <Image> ),
 *  bumpScale: <float>,
 *
 *  normalMap: new THREE.Texture( <Image> ),
 *  normalMapType: THREE.TangentSpaceNormalMap,
 *  normalScale: <Vector2>,
 *
 *  displacementMap: new THREE.Texture( <Image> ),
 *  displacementScale: <float>,
 *  displacementBias: <float>,
 *
 *  alphaMap: new THREE.Texture( <Image> ),
 *
 *  skinning: <bool>,
 *  morphTargets: <bool>,
 *  morphNormals: <bool>
 * }
 */function MeshMatcapMaterial(parameters){Material.call(this);this.defines={'MATCAP':''};this.type='MeshMatcapMaterial';this.color=new Color(0xffffff);// diffuse
this.matcap=null;this.map=null;this.bumpMap=null;this.bumpScale=1;this.normalMap=null;this.normalMapType=TangentSpaceNormalMap;this.normalScale=new Vector2(1,1);this.displacementMap=null;this.displacementScale=1;this.displacementBias=0;this.alphaMap=null;this.skinning=false;this.morphTargets=false;this.morphNormals=false;this.setValues(parameters);}MeshMatcapMaterial.prototype=Object.create(Material.prototype);MeshMatcapMaterial.prototype.constructor=MeshMatcapMaterial;MeshMatcapMaterial.prototype.isMeshMatcapMaterial=true;MeshMatcapMaterial.prototype.copy=function(source){Material.prototype.copy.call(this,source);this.defines={'MATCAP':''};this.color.copy(source.color);this.matcap=source.matcap;this.map=source.map;this.bumpMap=source.bumpMap;this.bumpScale=source.bumpScale;this.normalMap=source.normalMap;this.normalMapType=source.normalMapType;this.normalScale.copy(source.normalScale);this.displacementMap=source.displacementMap;this.displacementScale=source.displacementScale;this.displacementBias=source.displacementBias;this.alphaMap=source.alphaMap;this.skinning=source.skinning;this.morphTargets=source.morphTargets;this.morphNormals=source.morphNormals;return this;};/**
 * parameters = {
 *  color: <hex>,
 *  opacity: <float>,
 *
 *  linewidth: <float>,
 *
 *  scale: <float>,
 *  dashSize: <float>,
 *  gapSize: <float>
 * }
 */function LineDashedMaterial(parameters){LineBasicMaterial.call(this);this.type='LineDashedMaterial';this.scale=1;this.dashSize=3;this.gapSize=1;this.setValues(parameters);}LineDashedMaterial.prototype=Object.create(LineBasicMaterial.prototype);LineDashedMaterial.prototype.constructor=LineDashedMaterial;LineDashedMaterial.prototype.isLineDashedMaterial=true;LineDashedMaterial.prototype.copy=function(source){LineBasicMaterial.prototype.copy.call(this,source);this.scale=source.scale;this.dashSize=source.dashSize;this.gapSize=source.gapSize;return this;};var Materials=/*#__PURE__*/Object.freeze({__proto__:null,ShadowMaterial:ShadowMaterial,SpriteMaterial:SpriteMaterial,RawShaderMaterial:RawShaderMaterial,ShaderMaterial:ShaderMaterial,PointsMaterial:PointsMaterial,MeshPhysicalMaterial:MeshPhysicalMaterial,MeshStandardMaterial:MeshStandardMaterial,MeshPhongMaterial:MeshPhongMaterial,MeshToonMaterial:MeshToonMaterial,MeshNormalMaterial:MeshNormalMaterial,MeshLambertMaterial:MeshLambertMaterial,MeshDepthMaterial:MeshDepthMaterial,MeshDistanceMaterial:MeshDistanceMaterial,MeshBasicMaterial:MeshBasicMaterial,MeshMatcapMaterial:MeshMatcapMaterial,LineDashedMaterial:LineDashedMaterial,LineBasicMaterial:LineBasicMaterial,Material:Material});var AnimationUtils={// same as Array.prototype.slice, but also works on typed arrays
arraySlice:function arraySlice(array,from,to){if(AnimationUtils.isTypedArray(array)){// in ios9 array.subarray(from, undefined) will return empty array
// but array.subarray(from) or array.subarray(from, len) is correct
return new array.constructor(array.subarray(from,to!==undefined?to:array.length));}return array.slice(from,to);},// converts an array to a specific type
convertArray:function convertArray(array,type,forceClone){if(!array||// let 'undefined' and 'null' pass
!forceClone&&array.constructor===type)return array;if(typeof type.BYTES_PER_ELEMENT==='number'){return new type(array);// create typed array
}return Array.prototype.slice.call(array);// create Array
},isTypedArray:function isTypedArray(object){return ArrayBuffer.isView(object)&&!(object instanceof DataView);},// returns an array by which times and values can be sorted
getKeyframeOrder:function getKeyframeOrder(times){function compareTime(i,j){return times[i]-times[j];}var n=times.length;var result=new Array(n);for(var _i242=0;_i242!==n;++_i242)result[_i242]=_i242;result.sort(compareTime);return result;},// uses the array previously returned by 'getKeyframeOrder' to sort data
sortedArray:function sortedArray(values,stride,order){var nValues=values.length;var result=new values.constructor(nValues);for(var _i243=0,dstOffset=0;dstOffset!==nValues;++_i243){var srcOffset=order[_i243]*stride;for(var j=0;j!==stride;++j){result[dstOffset++]=values[srcOffset+j];}}return result;},// function for parsing AOS keyframe formats
flattenJSON:function flattenJSON(jsonKeys,times,values,valuePropertyName){var i=1,key=jsonKeys[0];while(key!==undefined&&key[valuePropertyName]===undefined){key=jsonKeys[i++];}if(key===undefined)return;// no data
var value=key[valuePropertyName];if(value===undefined)return;// no data
if(Array.isArray(value)){do{value=key[valuePropertyName];if(value!==undefined){times.push(key.time);values.push.apply(values,value);// push all elements
}key=jsonKeys[i++];}while(key!==undefined);}else if(value.toArray!==undefined){// ...assume THREE.Math-ish
do{value=key[valuePropertyName];if(value!==undefined){times.push(key.time);value.toArray(values,values.length);}key=jsonKeys[i++];}while(key!==undefined);}else {// otherwise push as-is
do{value=key[valuePropertyName];if(value!==undefined){times.push(key.time);values.push(value);}key=jsonKeys[i++];}while(key!==undefined);}},subclip:function subclip(sourceClip,name,startFrame,endFrame){var fps=arguments.length>4&&arguments[4]!==undefined?arguments[4]:30;var clip=sourceClip.clone();clip.name=name;var tracks=[];for(var _i244=0;_i244<clip.tracks.length;++_i244){var track=clip.tracks[_i244];var valueSize=track.getValueSize();var times=[];var values=[];for(var j=0;j<track.times.length;++j){var frame=track.times[j]*fps;if(frame<startFrame||frame>=endFrame)continue;times.push(track.times[j]);for(var k=0;k<valueSize;++k){values.push(track.values[j*valueSize+k]);}}if(times.length===0)continue;track.times=AnimationUtils.convertArray(times,track.times.constructor);track.values=AnimationUtils.convertArray(values,track.values.constructor);tracks.push(track);}clip.tracks=tracks;// find minimum .times value across all tracks in the trimmed clip
var minStartTime=Infinity;for(var _i245=0;_i245<clip.tracks.length;++_i245){if(minStartTime>clip.tracks[_i245].times[0]){minStartTime=clip.tracks[_i245].times[0];}}// shift all tracks such that clip begins at t=0
for(var _i246=0;_i246<clip.tracks.length;++_i246){clip.tracks[_i246].shift(-1*minStartTime);}clip.resetDuration();return clip;},makeClipAdditive:function makeClipAdditive(targetClip){var referenceFrame=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;var referenceClip=arguments.length>2&&arguments[2]!==undefined?arguments[2]:targetClip;var fps=arguments.length>3&&arguments[3]!==undefined?arguments[3]:30;if(fps<=0)fps=30;var numTracks=referenceClip.tracks.length;var referenceTime=referenceFrame/fps;// Make each track's values relative to the values at the reference frame
var _loop=function _loop(){var referenceTrack=referenceClip.tracks[_i247];var referenceTrackType=referenceTrack.ValueTypeName;// Skip this track if it's non-numeric
if(referenceTrackType==='bool'||referenceTrackType==='string')return 0;// continue
// Find the track in the target clip whose name and type matches the reference track
var targetTrack=targetClip.tracks.find(function(track){return track.name===referenceTrack.name&&track.ValueTypeName===referenceTrackType;});if(targetTrack===undefined)return 0;// continue
var referenceOffset=0;var referenceValueSize=referenceTrack.getValueSize();if(referenceTrack.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline){referenceOffset=referenceValueSize/3;}var targetOffset=0;var targetValueSize=targetTrack.getValueSize();if(targetTrack.createInterpolant.isInterpolantFactoryMethodGLTFCubicSpline){targetOffset=targetValueSize/3;}var lastIndex=referenceTrack.times.length-1;var referenceValue;// Find the value to subtract out of the track
if(referenceTime<=referenceTrack.times[0]){// Reference frame is earlier than the first keyframe, so just use the first keyframe
var startIndex=referenceOffset;var endIndex=referenceValueSize-referenceOffset;referenceValue=AnimationUtils.arraySlice(referenceTrack.values,startIndex,endIndex);}else if(referenceTime>=referenceTrack.times[lastIndex]){// Reference frame is after the last keyframe, so just use the last keyframe
var _startIndex=lastIndex*referenceValueSize+referenceOffset;var _endIndex=_startIndex+referenceValueSize-referenceOffset;referenceValue=AnimationUtils.arraySlice(referenceTrack.values,_startIndex,_endIndex);}else {// Interpolate to the reference value
var interpolant=referenceTrack.createInterpolant();var _startIndex2=referenceOffset;var _endIndex2=referenceValueSize-referenceOffset;interpolant.evaluate(referenceTime);referenceValue=AnimationUtils.arraySlice(interpolant.resultBuffer,_startIndex2,_endIndex2);}// Conjugate the quaternion
if(referenceTrackType==='quaternion'){var referenceQuat=new Quaternion().fromArray(referenceValue).normalize().conjugate();referenceQuat.toArray(referenceValue);}// Subtract the reference value from all of the track values
var numTimes=targetTrack.times.length;for(var j=0;j<numTimes;++j){var valueStart=j*targetValueSize+targetOffset;if(referenceTrackType==='quaternion'){// Multiply the conjugate for quaternion track types
Quaternion.multiplyQuaternionsFlat(targetTrack.values,valueStart,referenceValue,0,targetTrack.values,valueStart);}else {var valueEnd=targetValueSize-targetOffset*2;// Subtract each value for all other numeric track types
for(var k=0;k<valueEnd;++k){targetTrack.values[valueStart+k]-=referenceValue[k];}}}},_ret;for(var _i247=0;_i247<numTracks;++_i247){_ret=_loop();if(_ret===0)continue;}targetClip.blendMode=AdditiveAnimationBlendMode;return targetClip;}};/**
 * Abstract base class of interpolants over parametric samples.
 *
 * The parameter domain is one dimensional, typically the time or a path
 * along a curve defined by the data.
 *
 * The sample values can have any dimensionality and derived classes may
 * apply special interpretations to the data.
 *
 * This class provides the interval seek in a Template Method, deferring
 * the actual interpolation to derived classes.
 *
 * Time complexity is O(1) for linear access crossing at most two points
 * and O(log N) for random access, where N is the number of positions.
 *
 * References:
 *
 * 		http://www.oodesign.com/template-method-pattern.html
 *
 */function Interpolant(parameterPositions,sampleValues,sampleSize,resultBuffer){this.parameterPositions=parameterPositions;this._cachedIndex=0;this.resultBuffer=resultBuffer!==undefined?resultBuffer:new sampleValues.constructor(sampleSize);this.sampleValues=sampleValues;this.valueSize=sampleSize;}Object.assign(Interpolant.prototype,{evaluate:function evaluate(t){var pp=this.parameterPositions;var i1=this._cachedIndex,t1=pp[i1],t0=pp[i1-1];validate_interval:{seek:{var right;linear_scan:{//- See http://jsperf.com/comparison-to-undefined/3
//- slower code:
//-
//- 				if ( t >= t1 || t1 === undefined ) {
forward_scan:if(!(t<t1)){for(var giveUpAt=i1+2;;){if(t1===undefined){if(t<t0)break forward_scan;// after end
i1=pp.length;this._cachedIndex=i1;return this.afterEnd_(i1-1,t,t0);}if(i1===giveUpAt)break;// this loop
t0=t1;t1=pp[++i1];if(t<t1){// we have arrived at the sought interval
break seek;}}// prepare binary search on the right side of the index
right=pp.length;break linear_scan;}//- slower code:
//-					if ( t < t0 || t0 === undefined ) {
if(!(t>=t0)){// looping?
var t1global=pp[1];if(t<t1global){i1=2;// + 1, using the scan for the details
t0=t1global;}// linear reverse scan
for(var _giveUpAt=i1-2;;){if(t0===undefined){// before start
this._cachedIndex=0;return this.beforeStart_(0,t,t1);}if(i1===_giveUpAt)break;// this loop
t1=t0;t0=pp[--i1-1];if(t>=t0){// we have arrived at the sought interval
break seek;}}// prepare binary search on the left side of the index
right=i1;i1=0;break linear_scan;}// the interval is valid
break validate_interval;}// linear scan
// binary search
while(i1<right){var mid=i1+right>>>1;if(t<pp[mid]){right=mid;}else {i1=mid+1;}}t1=pp[i1];t0=pp[i1-1];// check boundary cases, again
if(t0===undefined){this._cachedIndex=0;return this.beforeStart_(0,t,t1);}if(t1===undefined){i1=pp.length;this._cachedIndex=i1;return this.afterEnd_(i1-1,t0,t);}}// seek
this._cachedIndex=i1;this.intervalChanged_(i1,t0,t1);}// validate_interval
return this.interpolate_(i1,t0,t,t1);},settings:null,// optional, subclass-specific settings structure
// Note: The indirection allows central control of many interpolants.
// --- Protected interface
DefaultSettings_:{},getSettings_:function getSettings_(){return this.settings||this.DefaultSettings_;},copySampleValue_:function copySampleValue_(index){// copies a sample value to the result buffer
var result=this.resultBuffer,values=this.sampleValues,stride=this.valueSize,offset=index*stride;for(var _i248=0;_i248!==stride;++_i248){result[_i248]=values[offset+_i248];}return result;},// Template methods for derived classes:
interpolate_:function interpolate_(/* i1, t0, t, t1 */){throw new Error('call to abstract method');// implementations shall return this.resultBuffer
},intervalChanged_:function intervalChanged_(/* i1, t0, t1 */){// empty
}});// DECLARE ALIAS AFTER assign prototype
Object.assign(Interpolant.prototype,{//( 0, t, t0 ), returns this.resultBuffer
beforeStart_:Interpolant.prototype.copySampleValue_,//( N-1, tN-1, t ), returns this.resultBuffer
afterEnd_:Interpolant.prototype.copySampleValue_});/**
 * Fast and simple cubic spline interpolant.
 *
 * It was derived from a Hermitian construction setting the first derivative
 * at each sample position to the linear slope between neighboring positions
 * over their parameter interval.
 */function CubicInterpolant(parameterPositions,sampleValues,sampleSize,resultBuffer){Interpolant.call(this,parameterPositions,sampleValues,sampleSize,resultBuffer);this._weightPrev=-0;this._offsetPrev=-0;this._weightNext=-0;this._offsetNext=-0;}CubicInterpolant.prototype=Object.assign(Object.create(Interpolant.prototype),{constructor:CubicInterpolant,DefaultSettings_:{endingStart:ZeroCurvatureEnding,endingEnd:ZeroCurvatureEnding},intervalChanged_:function intervalChanged_(i1,t0,t1){var pp=this.parameterPositions;var iPrev=i1-2,iNext=i1+1,tPrev=pp[iPrev],tNext=pp[iNext];if(tPrev===undefined){switch(this.getSettings_().endingStart){case ZeroSlopeEnding:// f'(t0) = 0
iPrev=i1;tPrev=2*t0-t1;break;case WrapAroundEnding:// use the other end of the curve
iPrev=pp.length-2;tPrev=t0+pp[iPrev]-pp[iPrev+1];break;default:// ZeroCurvatureEnding
// f''(t0) = 0 a.k.a. Natural Spline
iPrev=i1;tPrev=t1;}}if(tNext===undefined){switch(this.getSettings_().endingEnd){case ZeroSlopeEnding:// f'(tN) = 0
iNext=i1;tNext=2*t1-t0;break;case WrapAroundEnding:// use the other end of the curve
iNext=1;tNext=t1+pp[1]-pp[0];break;default:// ZeroCurvatureEnding
// f''(tN) = 0, a.k.a. Natural Spline
iNext=i1-1;tNext=t0;}}var halfDt=(t1-t0)*0.5,stride=this.valueSize;this._weightPrev=halfDt/(t0-tPrev);this._weightNext=halfDt/(tNext-t1);this._offsetPrev=iPrev*stride;this._offsetNext=iNext*stride;},interpolate_:function interpolate_(i1,t0,t,t1){var result=this.resultBuffer,values=this.sampleValues,stride=this.valueSize,o1=i1*stride,o0=o1-stride,oP=this._offsetPrev,oN=this._offsetNext,wP=this._weightPrev,wN=this._weightNext,p=(t-t0)/(t1-t0),pp=p*p,ppp=pp*p;// evaluate polynomials
var sP=-wP*ppp+2*wP*pp-wP*p;var s0=(1+wP)*ppp+(-1.5-2*wP)*pp+(-0.5+wP)*p+1;var s1=(-1-wN)*ppp+(1.5+wN)*pp+0.5*p;var sN=wN*ppp-wN*pp;// combine data linearly
for(var _i249=0;_i249!==stride;++_i249){result[_i249]=sP*values[oP+_i249]+s0*values[o0+_i249]+s1*values[o1+_i249]+sN*values[oN+_i249];}return result;}});function LinearInterpolant(parameterPositions,sampleValues,sampleSize,resultBuffer){Interpolant.call(this,parameterPositions,sampleValues,sampleSize,resultBuffer);}LinearInterpolant.prototype=Object.assign(Object.create(Interpolant.prototype),{constructor:LinearInterpolant,interpolate_:function interpolate_(i1,t0,t,t1){var result=this.resultBuffer,values=this.sampleValues,stride=this.valueSize,offset1=i1*stride,offset0=offset1-stride,weight1=(t-t0)/(t1-t0),weight0=1-weight1;for(var _i250=0;_i250!==stride;++_i250){result[_i250]=values[offset0+_i250]*weight0+values[offset1+_i250]*weight1;}return result;}});/**
 *
 * Interpolant that evaluates to the sample value at the position preceeding
 * the parameter.
 */function DiscreteInterpolant(parameterPositions,sampleValues,sampleSize,resultBuffer){Interpolant.call(this,parameterPositions,sampleValues,sampleSize,resultBuffer);}DiscreteInterpolant.prototype=Object.assign(Object.create(Interpolant.prototype),{constructor:DiscreteInterpolant,interpolate_:function interpolate_(i1/*, t0, t, t1 */){return this.copySampleValue_(i1-1);}});function KeyframeTrack(name,times,values,interpolation){if(name===undefined)throw new Error('THREE.KeyframeTrack: track name is undefined');if(times===undefined||times.length===0)throw new Error('THREE.KeyframeTrack: no keyframes in track named '+name);this.name=name;this.times=AnimationUtils.convertArray(times,this.TimeBufferType);this.values=AnimationUtils.convertArray(values,this.ValueBufferType);this.setInterpolation(interpolation||this.DefaultInterpolation);}// Static methods
Object.assign(KeyframeTrack,{// Serialization (in static context, because of constructor invocation
// and automatic invocation of .toJSON):
toJSON:function toJSON(track){var trackType=track.constructor;var json;// derived classes can define a static toJSON method
if(trackType.toJSON!==undefined){json=trackType.toJSON(track);}else {// by default, we assume the data can be serialized as-is
json={'name':track.name,'times':AnimationUtils.convertArray(track.times,Array),'values':AnimationUtils.convertArray(track.values,Array)};var interpolation=track.getInterpolation();if(interpolation!==track.DefaultInterpolation){json.interpolation=interpolation;}}json.type=track.ValueTypeName;// mandatory
return json;}});Object.assign(KeyframeTrack.prototype,{constructor:KeyframeTrack,TimeBufferType:Float32Array,ValueBufferType:Float32Array,DefaultInterpolation:InterpolateLinear,InterpolantFactoryMethodDiscrete:function InterpolantFactoryMethodDiscrete(result){return new DiscreteInterpolant(this.times,this.values,this.getValueSize(),result);},InterpolantFactoryMethodLinear:function InterpolantFactoryMethodLinear(result){return new LinearInterpolant(this.times,this.values,this.getValueSize(),result);},InterpolantFactoryMethodSmooth:function InterpolantFactoryMethodSmooth(result){return new CubicInterpolant(this.times,this.values,this.getValueSize(),result);},setInterpolation:function setInterpolation(interpolation){var factoryMethod;switch(interpolation){case InterpolateDiscrete:factoryMethod=this.InterpolantFactoryMethodDiscrete;break;case InterpolateLinear:factoryMethod=this.InterpolantFactoryMethodLinear;break;case InterpolateSmooth:factoryMethod=this.InterpolantFactoryMethodSmooth;break;}if(factoryMethod===undefined){var message='unsupported interpolation for '+this.ValueTypeName+' keyframe track named '+this.name;if(this.createInterpolant===undefined){// fall back to default, unless the default itself is messed up
if(interpolation!==this.DefaultInterpolation){this.setInterpolation(this.DefaultInterpolation);}else {throw new Error(message);// fatal, in this case
}}console.warn('THREE.KeyframeTrack:',message);return this;}this.createInterpolant=factoryMethod;return this;},getInterpolation:function getInterpolation(){switch(this.createInterpolant){case this.InterpolantFactoryMethodDiscrete:return InterpolateDiscrete;case this.InterpolantFactoryMethodLinear:return InterpolateLinear;case this.InterpolantFactoryMethodSmooth:return InterpolateSmooth;}},getValueSize:function getValueSize(){return this.values.length/this.times.length;},// move all keyframes either forwards or backwards in time
shift:function shift(timeOffset){if(timeOffset!==0.0){var times=this.times;for(var _i251=0,n=times.length;_i251!==n;++_i251){times[_i251]+=timeOffset;}}return this;},// scale all keyframe times by a factor (useful for frame <-> seconds conversions)
scale:function scale(timeScale){if(timeScale!==1.0){var times=this.times;for(var _i252=0,n=times.length;_i252!==n;++_i252){times[_i252]*=timeScale;}}return this;},// removes keyframes before and after animation without changing any values within the range [startTime, endTime].
// IMPORTANT: We do not shift around keys to the start of the track time, because for interpolated keys this will change their values
trim:function trim(startTime,endTime){var times=this.times,nKeys=times.length;var from=0,to=nKeys-1;while(from!==nKeys&&times[from]<startTime){++from;}while(to!==-1&&times[to]>endTime){--to;}++to;// inclusive -> exclusive bound
if(from!==0||to!==nKeys){// empty tracks are forbidden, so keep at least one keyframe
if(from>=to){to=Math.max(to,1);from=to-1;}var stride=this.getValueSize();this.times=AnimationUtils.arraySlice(times,from,to);this.values=AnimationUtils.arraySlice(this.values,from*stride,to*stride);}return this;},// ensure we do not get a GarbageInGarbageOut situation, make sure tracks are at least minimally viable
validate:function validate(){var valid=true;var valueSize=this.getValueSize();if(valueSize-Math.floor(valueSize)!==0){console.error('THREE.KeyframeTrack: Invalid value size in track.',this);valid=false;}var times=this.times,values=this.values,nKeys=times.length;if(nKeys===0){console.error('THREE.KeyframeTrack: Track is empty.',this);valid=false;}var prevTime=null;for(var _i253=0;_i253!==nKeys;_i253++){var currTime=times[_i253];if(typeof currTime==='number'&&isNaN(currTime)){console.error('THREE.KeyframeTrack: Time is not a valid number.',this,_i253,currTime);valid=false;break;}if(prevTime!==null&&prevTime>currTime){console.error('THREE.KeyframeTrack: Out of order keys.',this,_i253,currTime,prevTime);valid=false;break;}prevTime=currTime;}if(values!==undefined){if(AnimationUtils.isTypedArray(values)){for(var _i254=0,n=values.length;_i254!==n;++_i254){var value=values[_i254];if(isNaN(value)){console.error('THREE.KeyframeTrack: Value is not a valid number.',this,_i254,value);valid=false;break;}}}}return valid;},// removes equivalent sequential keys as common in morph target sequences
// (0,0,0,0,1,1,1,0,0,0,0,0,0,0) --> (0,0,1,1,0,0)
optimize:function optimize(){// times or values may be shared with other tracks, so overwriting is unsafe
var times=AnimationUtils.arraySlice(this.times),values=AnimationUtils.arraySlice(this.values),stride=this.getValueSize(),smoothInterpolation=this.getInterpolation()===InterpolateSmooth,lastIndex=times.length-1;var writeIndex=1;for(var _i255=1;_i255<lastIndex;++_i255){var keep=false;var time=times[_i255];var timeNext=times[_i255+1];// remove adjacent keyframes scheduled at the same time
if(time!==timeNext&&(_i255!==1||time!==time[0])){if(!smoothInterpolation){// remove unnecessary keyframes same as their neighbors
var offset=_i255*stride,offsetP=offset-stride,offsetN=offset+stride;for(var j=0;j!==stride;++j){var value=values[offset+j];if(value!==values[offsetP+j]||value!==values[offsetN+j]){keep=true;break;}}}else {keep=true;}}// in-place compaction
if(keep){if(_i255!==writeIndex){times[writeIndex]=times[_i255];var readOffset=_i255*stride,writeOffset=writeIndex*stride;for(var _j22=0;_j22!==stride;++_j22){values[writeOffset+_j22]=values[readOffset+_j22];}}++writeIndex;}}// flush last keyframe (compaction looks ahead)
if(lastIndex>0){times[writeIndex]=times[lastIndex];for(var _readOffset=lastIndex*stride,_writeOffset=writeIndex*stride,_j23=0;_j23!==stride;++_j23){values[_writeOffset+_j23]=values[_readOffset+_j23];}++writeIndex;}if(writeIndex!==times.length){this.times=AnimationUtils.arraySlice(times,0,writeIndex);this.values=AnimationUtils.arraySlice(values,0,writeIndex*stride);}else {this.times=times;this.values=values;}return this;},clone:function clone(){var times=AnimationUtils.arraySlice(this.times,0);var values=AnimationUtils.arraySlice(this.values,0);var TypedKeyframeTrack=this.constructor;var track=new TypedKeyframeTrack(this.name,times,values);// Interpolant argument to constructor is not saved, so copy the factory method directly.
track.createInterpolant=this.createInterpolant;return track;}});/**
 * A Track of Boolean keyframe values.
 */function BooleanKeyframeTrack(name,times,values){KeyframeTrack.call(this,name,times,values);}BooleanKeyframeTrack.prototype=Object.assign(Object.create(KeyframeTrack.prototype),{constructor:BooleanKeyframeTrack,ValueTypeName:'bool',ValueBufferType:Array,DefaultInterpolation:InterpolateDiscrete,InterpolantFactoryMethodLinear:undefined,InterpolantFactoryMethodSmooth:undefined// Note: Actually this track could have a optimized / compressed
// representation of a single value and a custom interpolant that
// computes "firstValue ^ isOdd( index )".
});/**
 * A Track of keyframe values that represent color.
 */function ColorKeyframeTrack(name,times,values,interpolation){KeyframeTrack.call(this,name,times,values,interpolation);}ColorKeyframeTrack.prototype=Object.assign(Object.create(KeyframeTrack.prototype),{constructor:ColorKeyframeTrack,ValueTypeName:'color'// ValueBufferType is inherited
// DefaultInterpolation is inherited
// Note: Very basic implementation and nothing special yet.
// However, this is the place for color space parameterization.
});/**
 * A Track of numeric keyframe values.
 */function NumberKeyframeTrack(name,times,values,interpolation){KeyframeTrack.call(this,name,times,values,interpolation);}NumberKeyframeTrack.prototype=Object.assign(Object.create(KeyframeTrack.prototype),{constructor:NumberKeyframeTrack,ValueTypeName:'number'// ValueBufferType is inherited
// DefaultInterpolation is inherited
});/**
 * Spherical linear unit quaternion interpolant.
 */function QuaternionLinearInterpolant(parameterPositions,sampleValues,sampleSize,resultBuffer){Interpolant.call(this,parameterPositions,sampleValues,sampleSize,resultBuffer);}QuaternionLinearInterpolant.prototype=Object.assign(Object.create(Interpolant.prototype),{constructor:QuaternionLinearInterpolant,interpolate_:function interpolate_(i1,t0,t,t1){var result=this.resultBuffer,values=this.sampleValues,stride=this.valueSize,alpha=(t-t0)/(t1-t0);var offset=i1*stride;for(var end=offset+stride;offset!==end;offset+=4){Quaternion.slerpFlat(result,0,values,offset-stride,values,offset,alpha);}return result;}});/**
 * A Track of quaternion keyframe values.
 */function QuaternionKeyframeTrack(name,times,values,interpolation){KeyframeTrack.call(this,name,times,values,interpolation);}QuaternionKeyframeTrack.prototype=Object.assign(Object.create(KeyframeTrack.prototype),{constructor:QuaternionKeyframeTrack,ValueTypeName:'quaternion',// ValueBufferType is inherited
DefaultInterpolation:InterpolateLinear,InterpolantFactoryMethodLinear:function InterpolantFactoryMethodLinear(result){return new QuaternionLinearInterpolant(this.times,this.values,this.getValueSize(),result);},InterpolantFactoryMethodSmooth:undefined// not yet implemented
});/**
 * A Track that interpolates Strings
 */function StringKeyframeTrack(name,times,values,interpolation){KeyframeTrack.call(this,name,times,values,interpolation);}StringKeyframeTrack.prototype=Object.assign(Object.create(KeyframeTrack.prototype),{constructor:StringKeyframeTrack,ValueTypeName:'string',ValueBufferType:Array,DefaultInterpolation:InterpolateDiscrete,InterpolantFactoryMethodLinear:undefined,InterpolantFactoryMethodSmooth:undefined});/**
 * A Track of vectored keyframe values.
 */function VectorKeyframeTrack(name,times,values,interpolation){KeyframeTrack.call(this,name,times,values,interpolation);}VectorKeyframeTrack.prototype=Object.assign(Object.create(KeyframeTrack.prototype),{constructor:VectorKeyframeTrack,ValueTypeName:'vector'// ValueBufferType is inherited
// DefaultInterpolation is inherited
});function AnimationClip(name){var duration=arguments.length>1&&arguments[1]!==undefined?arguments[1]:-1;var tracks=arguments.length>2?arguments[2]:undefined;var blendMode=arguments.length>3&&arguments[3]!==undefined?arguments[3]:NormalAnimationBlendMode;this.name=name;this.tracks=tracks;this.duration=duration;this.blendMode=blendMode;this.uuid=MathUtils.generateUUID();// this means it should figure out its duration by scanning the tracks
if(this.duration<0){this.resetDuration();}}function getTrackTypeForValueTypeName(typeName){switch(typeName.toLowerCase()){case'scalar':case'double':case'float':case'number':case'integer':return NumberKeyframeTrack;case'vector':case'vector2':case'vector3':case'vector4':return VectorKeyframeTrack;case'color':return ColorKeyframeTrack;case'quaternion':return QuaternionKeyframeTrack;case'bool':case'boolean':return BooleanKeyframeTrack;case'string':return StringKeyframeTrack;}throw new Error('THREE.KeyframeTrack: Unsupported typeName: '+typeName);}function parseKeyframeTrack(json){if(json.type===undefined){throw new Error('THREE.KeyframeTrack: track type undefined, can not parse');}var trackType=getTrackTypeForValueTypeName(json.type);if(json.times===undefined){var times=[],values=[];AnimationUtils.flattenJSON(json.keys,times,values,'value');json.times=times;json.values=values;}// derived classes can define a static parse method
if(trackType.parse!==undefined){return trackType.parse(json);}else {// by default, we assume a constructor compatible with the base
return new trackType(json.name,json.times,json.values,json.interpolation);}}Object.assign(AnimationClip,{parse:function parse(json){var tracks=[],jsonTracks=json.tracks,frameTime=1.0/(json.fps||1.0);for(var _i256=0,n=jsonTracks.length;_i256!==n;++_i256){tracks.push(parseKeyframeTrack(jsonTracks[_i256]).scale(frameTime));}var clip=new AnimationClip(json.name,json.duration,tracks,json.blendMode);clip.uuid=json.uuid;return clip;},toJSON:function toJSON(clip){var tracks=[],clipTracks=clip.tracks;var json={'name':clip.name,'duration':clip.duration,'tracks':tracks,'uuid':clip.uuid,'blendMode':clip.blendMode};for(var _i257=0,n=clipTracks.length;_i257!==n;++_i257){tracks.push(KeyframeTrack.toJSON(clipTracks[_i257]));}return json;},CreateFromMorphTargetSequence:function CreateFromMorphTargetSequence(name,morphTargetSequence,fps,noLoop){var numMorphTargets=morphTargetSequence.length;var tracks=[];for(var _i258=0;_i258<numMorphTargets;_i258++){var times=[];var values=[];times.push((_i258+numMorphTargets-1)%numMorphTargets,_i258,(_i258+1)%numMorphTargets);values.push(0,1,0);var order=AnimationUtils.getKeyframeOrder(times);times=AnimationUtils.sortedArray(times,1,order);values=AnimationUtils.sortedArray(values,1,order);// if there is a key at the first frame, duplicate it as the
// last frame as well for perfect loop.
if(!noLoop&&times[0]===0){times.push(numMorphTargets);values.push(values[0]);}tracks.push(new NumberKeyframeTrack('.morphTargetInfluences['+morphTargetSequence[_i258].name+']',times,values).scale(1.0/fps));}return new AnimationClip(name,-1,tracks);},findByName:function findByName(objectOrClipArray,name){var clipArray=objectOrClipArray;if(!Array.isArray(objectOrClipArray)){var o=objectOrClipArray;clipArray=o.geometry&&o.geometry.animations||o.animations;}for(var _i259=0;_i259<clipArray.length;_i259++){if(clipArray[_i259].name===name){return clipArray[_i259];}}return null;},CreateClipsFromMorphTargetSequences:function CreateClipsFromMorphTargetSequences(morphTargets,fps,noLoop){var animationToMorphTargets={};// tested with https://regex101.com/ on trick sequences
// such flamingo_flyA_003, flamingo_run1_003, crdeath0059
var pattern=/^([\w-]*?)([\d]+)$/;// sort morph target names into animation groups based
// patterns like Walk_001, Walk_002, Run_001, Run_002
for(var _i260=0,il=morphTargets.length;_i260<il;_i260++){var morphTarget=morphTargets[_i260];var parts=morphTarget.name.match(pattern);if(parts&&parts.length>1){var name=parts[1];var animationMorphTargets=animationToMorphTargets[name];if(!animationMorphTargets){animationToMorphTargets[name]=animationMorphTargets=[];}animationMorphTargets.push(morphTarget);}}var clips=[];for(var _name4 in animationToMorphTargets){clips.push(AnimationClip.CreateFromMorphTargetSequence(_name4,animationToMorphTargets[_name4],fps,noLoop));}return clips;},// parse the animation.hierarchy format
parseAnimation:function parseAnimation(animation,bones){if(!animation){console.error('THREE.AnimationClip: No animation in JSONLoader data.');return null;}var addNonemptyTrack=function addNonemptyTrack(trackType,trackName,animationKeys,propertyName,destTracks){// only return track if there are actually keys.
if(animationKeys.length!==0){var times=[];var values=[];AnimationUtils.flattenJSON(animationKeys,times,values,propertyName);// empty keys are filtered out, so check again
if(times.length!==0){destTracks.push(new trackType(trackName,times,values));}}};var tracks=[];var clipName=animation.name||'default';var fps=animation.fps||30;var blendMode=animation.blendMode;// automatic length determination in AnimationClip.
var duration=animation.length||-1;var hierarchyTracks=animation.hierarchy||[];for(var h=0;h<hierarchyTracks.length;h++){var animationKeys=hierarchyTracks[h].keys;// skip empty tracks
if(!animationKeys||animationKeys.length===0)continue;// process morph targets
if(animationKeys[0].morphTargets){// figure out all morph targets used in this track
var morphTargetNames={};var k=void 0;for(k=0;k<animationKeys.length;k++){if(animationKeys[k].morphTargets){for(var m=0;m<animationKeys[k].morphTargets.length;m++){morphTargetNames[animationKeys[k].morphTargets[m]]=-1;}}}// create a track for each morph target with all zero
// morphTargetInfluences except for the keys in which
// the morphTarget is named.
for(var morphTargetName in morphTargetNames){var times=[];var values=[];for(var _m=0;_m!==animationKeys[k].morphTargets.length;++_m){var animationKey=animationKeys[k];times.push(animationKey.time);values.push(animationKey.morphTarget===morphTargetName?1:0);}tracks.push(new NumberKeyframeTrack('.morphTargetInfluence['+morphTargetName+']',times,values));}duration=morphTargetNames.length*(fps||1.0);}else {// ...assume skeletal animation
var boneName='.bones['+bones[h].name+']';addNonemptyTrack(VectorKeyframeTrack,boneName+'.position',animationKeys,'pos',tracks);addNonemptyTrack(QuaternionKeyframeTrack,boneName+'.quaternion',animationKeys,'rot',tracks);addNonemptyTrack(VectorKeyframeTrack,boneName+'.scale',animationKeys,'scl',tracks);}}if(tracks.length===0){return null;}var clip=new AnimationClip(clipName,duration,tracks,blendMode);return clip;}});Object.assign(AnimationClip.prototype,{resetDuration:function resetDuration(){var tracks=this.tracks;var duration=0;for(var _i261=0,n=tracks.length;_i261!==n;++_i261){var track=this.tracks[_i261];duration=Math.max(duration,track.times[track.times.length-1]);}this.duration=duration;return this;},trim:function trim(){for(var _i262=0;_i262<this.tracks.length;_i262++){this.tracks[_i262].trim(0,this.duration);}return this;},validate:function validate(){var valid=true;for(var _i263=0;_i263<this.tracks.length;_i263++){valid=valid&&this.tracks[_i263].validate();}return valid;},optimize:function optimize(){for(var _i264=0;_i264<this.tracks.length;_i264++){this.tracks[_i264].optimize();}return this;},clone:function clone(){var tracks=[];for(var _i265=0;_i265<this.tracks.length;_i265++){tracks.push(this.tracks[_i265].clone());}return new AnimationClip(this.name,this.duration,tracks,this.blendMode);},toJSON:function toJSON(){return AnimationClip.toJSON(this);}});var Cache={enabled:false,files:{},add:function add(key,file){if(this.enabled===false)return;// console.log( 'THREE.Cache', 'Adding key:', key );
this.files[key]=file;},get:function get(key){if(this.enabled===false)return;// console.log( 'THREE.Cache', 'Checking key:', key );
return this.files[key];},remove:function remove(key){delete this.files[key];},clear:function clear(){this.files={};}};function LoadingManager(onLoad,onProgress,onError){var scope=this;var isLoading=false;var itemsLoaded=0;var itemsTotal=0;var urlModifier=undefined;var handlers=[];// Refer to #5689 for the reason why we don't set .onStart
// in the constructor
this.onStart=undefined;this.onLoad=onLoad;this.onProgress=onProgress;this.onError=onError;this.itemStart=function(url){itemsTotal++;if(isLoading===false){if(scope.onStart!==undefined){scope.onStart(url,itemsLoaded,itemsTotal);}}isLoading=true;};this.itemEnd=function(url){itemsLoaded++;if(scope.onProgress!==undefined){scope.onProgress(url,itemsLoaded,itemsTotal);}if(itemsLoaded===itemsTotal){isLoading=false;if(scope.onLoad!==undefined){scope.onLoad();}}};this.itemError=function(url){if(scope.onError!==undefined){scope.onError(url);}};this.resolveURL=function(url){if(urlModifier){return urlModifier(url);}return url;};this.setURLModifier=function(transform){urlModifier=transform;return this;};this.addHandler=function(regex,loader){handlers.push(regex,loader);return this;};this.removeHandler=function(regex){var index=handlers.indexOf(regex);if(index!==-1){handlers.splice(index,2);}return this;};this.getHandler=function(file){for(var _i266=0,l=handlers.length;_i266<l;_i266+=2){var regex=handlers[_i266];var loader=handlers[_i266+1];if(regex.global)regex.lastIndex=0;// see #17920
if(regex.test(file)){return loader;}}return null;};}var DefaultLoadingManager=new LoadingManager();function Loader(manager){this.manager=manager!==undefined?manager:DefaultLoadingManager;this.crossOrigin='anonymous';this.withCredentials=false;this.path='';this.resourcePath='';this.requestHeader={};}Object.assign(Loader.prototype,{load:function load(/* url, onLoad, onProgress, onError */){},loadAsync:function loadAsync(url,onProgress){var scope=this;return new Promise(function(resolve,reject){scope.load(url,resolve,onProgress,reject);});},parse:function parse(/* data */){},setCrossOrigin:function setCrossOrigin(crossOrigin){this.crossOrigin=crossOrigin;return this;},setWithCredentials:function setWithCredentials(value){this.withCredentials=value;return this;},setPath:function setPath(path){this.path=path;return this;},setResourcePath:function setResourcePath(resourcePath){this.resourcePath=resourcePath;return this;},setRequestHeader:function setRequestHeader(requestHeader){this.requestHeader=requestHeader;return this;}});var loading={};function FileLoader(manager){Loader.call(this,manager);}FileLoader.prototype=Object.assign(Object.create(Loader.prototype),{constructor:FileLoader,load:function load(url,onLoad,onProgress,onError){if(url===undefined)url='';if(this.path!==undefined)url=this.path+url;url=this.manager.resolveURL(url);var scope=this;var cached=Cache.get(url);if(cached!==undefined){scope.manager.itemStart(url);setTimeout(function(){if(onLoad)onLoad(cached);scope.manager.itemEnd(url);},0);return cached;}// Check if request is duplicate
if(loading[url]!==undefined){loading[url].push({onLoad:onLoad,onProgress:onProgress,onError:onError});return;}// Check for data: URI
var dataUriRegex=/^data:(.*?)(;base64)?,(.*)$/;var dataUriRegexResult=url.match(dataUriRegex);var request;// Safari can not handle Data URIs through XMLHttpRequest so process manually
if(dataUriRegexResult){var mimeType=dataUriRegexResult[1];var isBase64=!!dataUriRegexResult[2];var data=dataUriRegexResult[3];data=decodeURIComponent(data);if(isBase64)data=atob(data);try{var response;var responseType=(this.responseType||'').toLowerCase();switch(responseType){case'arraybuffer':case'blob':var view=new Uint8Array(data.length);for(var _i267=0;_i267<data.length;_i267++){view[_i267]=data.charCodeAt(_i267);}if(responseType==='blob'){response=new Blob([view.buffer],{type:mimeType});}else {response=view.buffer;}break;case'document':var parser=new DOMParser();response=parser.parseFromString(data,mimeType);break;case'json':response=JSON.parse(data);break;default:// 'text' or other
response=data;break;}// Wait for next browser tick like standard XMLHttpRequest event dispatching does
setTimeout(function(){if(onLoad)onLoad(response);scope.manager.itemEnd(url);},0);}catch(error){// Wait for next browser tick like standard XMLHttpRequest event dispatching does
setTimeout(function(){if(onError)onError(error);scope.manager.itemError(url);scope.manager.itemEnd(url);},0);}}else {// Initialise array for duplicate requests
loading[url]=[];loading[url].push({onLoad:onLoad,onProgress:onProgress,onError:onError});request=new XMLHttpRequest();request.open('GET',url,true);request.addEventListener('load',function(event){var response=this.response;var callbacks=loading[url];delete loading[url];if(this.status===200||this.status===0){// Some browsers return HTTP Status 0 when using non-http protocol
// e.g. 'file://' or 'data://'. Handle as success.
if(this.status===0)console.warn('THREE.FileLoader: HTTP Status 0 received.');// Add to cache only on HTTP success, so that we do not cache
// error response bodies as proper responses to requests.
Cache.add(url,response);for(var _i268=0,il=callbacks.length;_i268<il;_i268++){var callback=callbacks[_i268];if(callback.onLoad)callback.onLoad(response);}scope.manager.itemEnd(url);}else {for(var _i269=0,_il31=callbacks.length;_i269<_il31;_i269++){var _callback=callbacks[_i269];if(_callback.onError)_callback.onError(event);}scope.manager.itemError(url);scope.manager.itemEnd(url);}},false);request.addEventListener('progress',function(event){var callbacks=loading[url];for(var _i270=0,il=callbacks.length;_i270<il;_i270++){var callback=callbacks[_i270];if(callback.onProgress)callback.onProgress(event);}},false);request.addEventListener('error',function(event){var callbacks=loading[url];delete loading[url];for(var _i271=0,il=callbacks.length;_i271<il;_i271++){var callback=callbacks[_i271];if(callback.onError)callback.onError(event);}scope.manager.itemError(url);scope.manager.itemEnd(url);},false);request.addEventListener('abort',function(event){var callbacks=loading[url];delete loading[url];for(var _i272=0,il=callbacks.length;_i272<il;_i272++){var callback=callbacks[_i272];if(callback.onError)callback.onError(event);}scope.manager.itemError(url);scope.manager.itemEnd(url);},false);if(this.responseType!==undefined)request.responseType=this.responseType;if(this.withCredentials!==undefined)request.withCredentials=this.withCredentials;if(request.overrideMimeType)request.overrideMimeType(this.mimeType!==undefined?this.mimeType:'text/plain');for(var header in this.requestHeader){request.setRequestHeader(header,this.requestHeader[header]);}request.send(null);}scope.manager.itemStart(url);return request;},setResponseType:function setResponseType(value){this.responseType=value;return this;},setMimeType:function setMimeType(value){this.mimeType=value;return this;}});function AnimationLoader(manager){Loader.call(this,manager);}AnimationLoader.prototype=Object.assign(Object.create(Loader.prototype),{constructor:AnimationLoader,load:function load(url,onLoad,onProgress,onError){var scope=this;var loader=new FileLoader(scope.manager);loader.setPath(scope.path);loader.setRequestHeader(scope.requestHeader);loader.setWithCredentials(scope.withCredentials);loader.load(url,function(text){try{onLoad(scope.parse(JSON.parse(text)));}catch(e){if(onError){onError(e);}else {console.error(e);}scope.manager.itemError(url);}},onProgress,onError);},parse:function parse(json){var animations=[];for(var _i273=0;_i273<json.length;_i273++){var clip=AnimationClip.parse(json[_i273]);animations.push(clip);}return animations;}});/**
 * Abstract Base class to block based textures loader (dds, pvr, ...)
 *
 * Sub classes have to implement the parse() method which will be used in load().
 */function CompressedTextureLoader(manager){Loader.call(this,manager);}CompressedTextureLoader.prototype=Object.assign(Object.create(Loader.prototype),{constructor:CompressedTextureLoader,load:function load(url,onLoad,onProgress,onError){var scope=this;var images=[];var texture=new CompressedTexture();var loader=new FileLoader(this.manager);loader.setPath(this.path);loader.setResponseType('arraybuffer');loader.setRequestHeader(this.requestHeader);loader.setWithCredentials(scope.withCredentials);var loaded=0;function loadTexture(i){loader.load(url[i],function(buffer){var texDatas=scope.parse(buffer,true);images[i]={width:texDatas.width,height:texDatas.height,format:texDatas.format,mipmaps:texDatas.mipmaps};loaded+=1;if(loaded===6){if(texDatas.mipmapCount===1)texture.minFilter=LinearFilter;texture.image=images;texture.format=texDatas.format;texture.needsUpdate=true;if(onLoad)onLoad(texture);}},onProgress,onError);}if(Array.isArray(url)){for(var _i274=0,il=url.length;_i274<il;++_i274){loadTexture(_i274);}}else {// compressed cubemap texture stored in a single DDS file
loader.load(url,function(buffer){var texDatas=scope.parse(buffer,true);if(texDatas.isCubemap){var faces=texDatas.mipmaps.length/texDatas.mipmapCount;for(var f=0;f<faces;f++){images[f]={mipmaps:[]};for(var _i275=0;_i275<texDatas.mipmapCount;_i275++){images[f].mipmaps.push(texDatas.mipmaps[f*texDatas.mipmapCount+_i275]);images[f].format=texDatas.format;images[f].width=texDatas.width;images[f].height=texDatas.height;}}texture.image=images;}else {texture.image.width=texDatas.width;texture.image.height=texDatas.height;texture.mipmaps=texDatas.mipmaps;}if(texDatas.mipmapCount===1){texture.minFilter=LinearFilter;}texture.format=texDatas.format;texture.needsUpdate=true;if(onLoad)onLoad(texture);},onProgress,onError);}return texture;}});function ImageLoader(manager){Loader.call(this,manager);}ImageLoader.prototype=Object.assign(Object.create(Loader.prototype),{constructor:ImageLoader,load:function load(url,onLoad,onProgress,onError){if(this.path!==undefined)url=this.path+url;url=this.manager.resolveURL(url);var scope=this;var cached=Cache.get(url);if(cached!==undefined){scope.manager.itemStart(url);setTimeout(function(){if(onLoad)onLoad(cached);scope.manager.itemEnd(url);},0);return cached;}var image=document.createElementNS('http://www.w3.org/1999/xhtml','img');function onImageLoad(){image.removeEventListener('load',onImageLoad,false);image.removeEventListener('error',onImageError,false);Cache.add(url,this);if(onLoad)onLoad(this);scope.manager.itemEnd(url);}function onImageError(event){image.removeEventListener('load',onImageLoad,false);image.removeEventListener('error',onImageError,false);if(onError)onError(event);scope.manager.itemError(url);scope.manager.itemEnd(url);}image.addEventListener('load',onImageLoad,false);image.addEventListener('error',onImageError,false);if(url.substr(0,5)!=='data:'){if(this.crossOrigin!==undefined)image.crossOrigin=this.crossOrigin;}scope.manager.itemStart(url);image.src=url;return image;}});function CubeTextureLoader(manager){Loader.call(this,manager);}CubeTextureLoader.prototype=Object.assign(Object.create(Loader.prototype),{constructor:CubeTextureLoader,load:function load(urls,onLoad,onProgress,onError){var texture=new CubeTexture();var loader=new ImageLoader(this.manager);loader.setCrossOrigin(this.crossOrigin);loader.setPath(this.path);var loaded=0;function loadTexture(i){loader.load(urls[i],function(image){texture.images[i]=image;loaded++;if(loaded===6){texture.needsUpdate=true;if(onLoad)onLoad(texture);}},undefined,onError);}for(var _i276=0;_i276<urls.length;++_i276){loadTexture(_i276);}return texture;}});/**
 * Abstract Base class to load generic binary textures formats (rgbe, hdr, ...)
 *
 * Sub classes have to implement the parse() method which will be used in load().
 */function DataTextureLoader(manager){Loader.call(this,manager);}DataTextureLoader.prototype=Object.assign(Object.create(Loader.prototype),{constructor:DataTextureLoader,load:function load(url,onLoad,onProgress,onError){var scope=this;var texture=new DataTexture();var loader=new FileLoader(this.manager);loader.setResponseType('arraybuffer');loader.setRequestHeader(this.requestHeader);loader.setPath(this.path);loader.setWithCredentials(scope.withCredentials);loader.load(url,function(buffer){var texData=scope.parse(buffer);if(!texData)return;if(texData.image!==undefined){texture.image=texData.image;}else if(texData.data!==undefined){texture.image.width=texData.width;texture.image.height=texData.height;texture.image.data=texData.data;}texture.wrapS=texData.wrapS!==undefined?texData.wrapS:ClampToEdgeWrapping;texture.wrapT=texData.wrapT!==undefined?texData.wrapT:ClampToEdgeWrapping;texture.magFilter=texData.magFilter!==undefined?texData.magFilter:LinearFilter;texture.minFilter=texData.minFilter!==undefined?texData.minFilter:LinearFilter;texture.anisotropy=texData.anisotropy!==undefined?texData.anisotropy:1;if(texData.format!==undefined){texture.format=texData.format;}if(texData.type!==undefined){texture.type=texData.type;}if(texData.mipmaps!==undefined){texture.mipmaps=texData.mipmaps;texture.minFilter=LinearMipmapLinearFilter;// presumably...
}if(texData.mipmapCount===1){texture.minFilter=LinearFilter;}texture.needsUpdate=true;if(onLoad)onLoad(texture,texData);},onProgress,onError);return texture;}});function TextureLoader(manager){Loader.call(this,manager);}TextureLoader.prototype=Object.assign(Object.create(Loader.prototype),{constructor:TextureLoader,load:function load(url,onLoad,onProgress,onError){var texture=new Texture();var loader=new ImageLoader(this.manager);loader.setCrossOrigin(this.crossOrigin);loader.setPath(this.path);loader.load(url,function(image){texture.image=image;// JPEGs can't have an alpha channel, so memory can be saved by storing them as RGB.
var isJPEG=url.search(/\.jpe?g($|\?)/i)>0||url.search(/^data\:image\/jpeg/)===0;texture.format=isJPEG?RGBFormat:RGBAFormat;texture.needsUpdate=true;if(onLoad!==undefined){onLoad(texture);}},onProgress,onError);return texture;}});/**
 * Extensible curve object.
 *
 * Some common of curve methods:
 * .getPoint( t, optionalTarget ), .getTangent( t, optionalTarget )
 * .getPointAt( u, optionalTarget ), .getTangentAt( u, optionalTarget )
 * .getPoints(), .getSpacedPoints()
 * .getLength()
 * .updateArcLengths()
 *
 * This following curves inherit from THREE.Curve:
 *
 * -- 2D curves --
 * THREE.ArcCurve
 * THREE.CubicBezierCurve
 * THREE.EllipseCurve
 * THREE.LineCurve
 * THREE.QuadraticBezierCurve
 * THREE.SplineCurve
 *
 * -- 3D curves --
 * THREE.CatmullRomCurve3
 * THREE.CubicBezierCurve3
 * THREE.LineCurve3
 * THREE.QuadraticBezierCurve3
 *
 * A series of curves can be represented as a THREE.CurvePath.
 *
 **/function Curve(){this.type='Curve';this.arcLengthDivisions=200;}Object.assign(Curve.prototype,{// Virtual base class method to overwrite and implement in subclasses
//	- t [0 .. 1]
getPoint:function getPoint(/* t, optionalTarget */){console.warn('THREE.Curve: .getPoint() not implemented.');return null;},// Get point at relative position in curve according to arc length
// - u [0 .. 1]
getPointAt:function getPointAt(u,optionalTarget){var t=this.getUtoTmapping(u);return this.getPoint(t,optionalTarget);},// Get sequence of points using getPoint( t )
getPoints:function getPoints(){var divisions=arguments.length>0&&arguments[0]!==undefined?arguments[0]:5;var points=[];for(var d=0;d<=divisions;d++){points.push(this.getPoint(d/divisions));}return points;},// Get sequence of points using getPointAt( u )
getSpacedPoints:function getSpacedPoints(){var divisions=arguments.length>0&&arguments[0]!==undefined?arguments[0]:5;var points=[];for(var d=0;d<=divisions;d++){points.push(this.getPointAt(d/divisions));}return points;},// Get total curve arc length
getLength:function getLength(){var lengths=this.getLengths();return lengths[lengths.length-1];},// Get list of cumulative segment lengths
getLengths:function getLengths(divisions){if(divisions===undefined)divisions=this.arcLengthDivisions;if(this.cacheArcLengths&&this.cacheArcLengths.length===divisions+1&&!this.needsUpdate){return this.cacheArcLengths;}this.needsUpdate=false;var cache=[];var current,last=this.getPoint(0);var sum=0;cache.push(0);for(var p=1;p<=divisions;p++){current=this.getPoint(p/divisions);sum+=current.distanceTo(last);cache.push(sum);last=current;}this.cacheArcLengths=cache;return cache;// { sums: cache, sum: sum }; Sum is in the last element.
},updateArcLengths:function updateArcLengths(){this.needsUpdate=true;this.getLengths();},// Given u ( 0 .. 1 ), get a t to find p. This gives you points which are equidistant
getUtoTmapping:function getUtoTmapping(u,distance){var arcLengths=this.getLengths();var i=0;var il=arcLengths.length;var targetArcLength;// The targeted u distance value to get
if(distance){targetArcLength=distance;}else {targetArcLength=u*arcLengths[il-1];}// binary search for the index with largest value smaller than target u distance
var low=0,high=il-1,comparison;while(low<=high){i=Math.floor(low+(high-low)/2);// less likely to overflow, though probably not issue here, JS doesn't really have integers, all numbers are floats
comparison=arcLengths[i]-targetArcLength;if(comparison<0){low=i+1;}else if(comparison>0){high=i-1;}else {high=i;break;// DONE
}}i=high;if(arcLengths[i]===targetArcLength){return i/(il-1);}// we could get finer grain at lengths, or use simple interpolation between two points
var lengthBefore=arcLengths[i];var lengthAfter=arcLengths[i+1];var segmentLength=lengthAfter-lengthBefore;// determine where we are between the 'before' and 'after' points
var segmentFraction=(targetArcLength-lengthBefore)/segmentLength;// add that fractional amount to t
var t=(i+segmentFraction)/(il-1);return t;},// Returns a unit vector tangent at t
// In case any sub curve does not implement its tangent derivation,
// 2 points a small delta apart will be used to find its gradient
// which seems to give a reasonable approximation
getTangent:function getTangent(t,optionalTarget){var delta=0.0001;var t1=t-delta;var t2=t+delta;// Capping in case of danger
if(t1<0)t1=0;if(t2>1)t2=1;var pt1=this.getPoint(t1);var pt2=this.getPoint(t2);var tangent=optionalTarget||(pt1.isVector2?new Vector2():new Vector3());tangent.copy(pt2).sub(pt1).normalize();return tangent;},getTangentAt:function getTangentAt(u,optionalTarget){var t=this.getUtoTmapping(u);return this.getTangent(t,optionalTarget);},computeFrenetFrames:function computeFrenetFrames(segments,closed){// see http://www.cs.indiana.edu/pub/techreports/TR425.pdf
var normal=new Vector3();var tangents=[];var normals=[];var binormals=[];var vec=new Vector3();var mat=new Matrix4();// compute the tangent vectors for each segment on the curve
for(var _i277=0;_i277<=segments;_i277++){var u=_i277/segments;tangents[_i277]=this.getTangentAt(u,new Vector3());tangents[_i277].normalize();}// select an initial normal vector perpendicular to the first tangent vector,
// and in the direction of the minimum tangent xyz component
normals[0]=new Vector3();binormals[0]=new Vector3();var min=Number.MAX_VALUE;var tx=Math.abs(tangents[0].x);var ty=Math.abs(tangents[0].y);var tz=Math.abs(tangents[0].z);if(tx<=min){min=tx;normal.set(1,0,0);}if(ty<=min){min=ty;normal.set(0,1,0);}if(tz<=min){normal.set(0,0,1);}vec.crossVectors(tangents[0],normal).normalize();normals[0].crossVectors(tangents[0],vec);binormals[0].crossVectors(tangents[0],normals[0]);// compute the slowly-varying normal and binormal vectors for each segment on the curve
for(var _i278=1;_i278<=segments;_i278++){normals[_i278]=normals[_i278-1].clone();binormals[_i278]=binormals[_i278-1].clone();vec.crossVectors(tangents[_i278-1],tangents[_i278]);if(vec.length()>Number.EPSILON){vec.normalize();var theta=Math.acos(MathUtils.clamp(tangents[_i278-1].dot(tangents[_i278]),-1,1));// clamp for floating pt errors
normals[_i278].applyMatrix4(mat.makeRotationAxis(vec,theta));}binormals[_i278].crossVectors(tangents[_i278],normals[_i278]);}// if the curve is closed, postprocess the vectors so the first and last normal vectors are the same
if(closed===true){var _theta=Math.acos(MathUtils.clamp(normals[0].dot(normals[segments]),-1,1));_theta/=segments;if(tangents[0].dot(vec.crossVectors(normals[0],normals[segments]))>0){_theta=-_theta;}for(var _i279=1;_i279<=segments;_i279++){// twist a little...
normals[_i279].applyMatrix4(mat.makeRotationAxis(tangents[_i279],_theta*_i279));binormals[_i279].crossVectors(tangents[_i279],normals[_i279]);}}return {tangents:tangents,normals:normals,binormals:binormals};},clone:function clone(){return new this.constructor().copy(this);},copy:function copy(source){this.arcLengthDivisions=source.arcLengthDivisions;return this;},toJSON:function toJSON(){var data={metadata:{version:4.5,type:'Curve',generator:'Curve.toJSON'}};data.arcLengthDivisions=this.arcLengthDivisions;data.type=this.type;return data;},fromJSON:function fromJSON(json){this.arcLengthDivisions=json.arcLengthDivisions;return this;}});function EllipseCurve(aX,aY,xRadius,yRadius,aStartAngle,aEndAngle,aClockwise,aRotation){Curve.call(this);this.type='EllipseCurve';this.aX=aX||0;this.aY=aY||0;this.xRadius=xRadius||1;this.yRadius=yRadius||1;this.aStartAngle=aStartAngle||0;this.aEndAngle=aEndAngle||2*Math.PI;this.aClockwise=aClockwise||false;this.aRotation=aRotation||0;}EllipseCurve.prototype=Object.create(Curve.prototype);EllipseCurve.prototype.constructor=EllipseCurve;EllipseCurve.prototype.isEllipseCurve=true;EllipseCurve.prototype.getPoint=function(t,optionalTarget){var point=optionalTarget||new Vector2();var twoPi=Math.PI*2;var deltaAngle=this.aEndAngle-this.aStartAngle;var samePoints=Math.abs(deltaAngle)<Number.EPSILON;// ensures that deltaAngle is 0 .. 2 PI
while(deltaAngle<0)deltaAngle+=twoPi;while(deltaAngle>twoPi)deltaAngle-=twoPi;if(deltaAngle<Number.EPSILON){if(samePoints){deltaAngle=0;}else {deltaAngle=twoPi;}}if(this.aClockwise===true&&!samePoints){if(deltaAngle===twoPi){deltaAngle=-twoPi;}else {deltaAngle=deltaAngle-twoPi;}}var angle=this.aStartAngle+t*deltaAngle;var x=this.aX+this.xRadius*Math.cos(angle);var y=this.aY+this.yRadius*Math.sin(angle);if(this.aRotation!==0){var cos=Math.cos(this.aRotation);var sin=Math.sin(this.aRotation);var tx=x-this.aX;var ty=y-this.aY;// Rotate the point about the center of the ellipse.
x=tx*cos-ty*sin+this.aX;y=tx*sin+ty*cos+this.aY;}return point.set(x,y);};EllipseCurve.prototype.copy=function(source){Curve.prototype.copy.call(this,source);this.aX=source.aX;this.aY=source.aY;this.xRadius=source.xRadius;this.yRadius=source.yRadius;this.aStartAngle=source.aStartAngle;this.aEndAngle=source.aEndAngle;this.aClockwise=source.aClockwise;this.aRotation=source.aRotation;return this;};EllipseCurve.prototype.toJSON=function(){var data=Curve.prototype.toJSON.call(this);data.aX=this.aX;data.aY=this.aY;data.xRadius=this.xRadius;data.yRadius=this.yRadius;data.aStartAngle=this.aStartAngle;data.aEndAngle=this.aEndAngle;data.aClockwise=this.aClockwise;data.aRotation=this.aRotation;return data;};EllipseCurve.prototype.fromJSON=function(json){Curve.prototype.fromJSON.call(this,json);this.aX=json.aX;this.aY=json.aY;this.xRadius=json.xRadius;this.yRadius=json.yRadius;this.aStartAngle=json.aStartAngle;this.aEndAngle=json.aEndAngle;this.aClockwise=json.aClockwise;this.aRotation=json.aRotation;return this;};function ArcCurve(aX,aY,aRadius,aStartAngle,aEndAngle,aClockwise){EllipseCurve.call(this,aX,aY,aRadius,aRadius,aStartAngle,aEndAngle,aClockwise);this.type='ArcCurve';}ArcCurve.prototype=Object.create(EllipseCurve.prototype);ArcCurve.prototype.constructor=ArcCurve;ArcCurve.prototype.isArcCurve=true;/**
 * Centripetal CatmullRom Curve - which is useful for avoiding
 * cusps and self-intersections in non-uniform catmull rom curves.
 * http://www.cemyuksel.com/research/catmullrom_param/catmullrom.pdf
 *
 * curve.type accepts centripetal(default), chordal and catmullrom
 * curve.tension is used for catmullrom which defaults to 0.5
 */ /*
Based on an optimized c++ solution in
 - http://stackoverflow.com/questions/9489736/catmull-rom-curve-with-no-cusps-and-no-self-intersections/
 - http://ideone.com/NoEbVM

This CubicPoly class could be used for reusing some variables and calculations,
but for three.js curve use, it could be possible inlined and flatten into a single function call
which can be placed in CurveUtils.
*/function CubicPoly(){var c0=0,c1=0,c2=0,c3=0;/*
	 * Compute coefficients for a cubic polynomial
	 *   p(s) = c0 + c1*s + c2*s^2 + c3*s^3
	 * such that
	 *   p(0) = x0, p(1) = x1
	 *  and
	 *   p'(0) = t0, p'(1) = t1.
	 */function init(x0,x1,t0,t1){c0=x0;c1=t0;c2=-3*x0+3*x1-2*t0-t1;c3=2*x0-2*x1+t0+t1;}return {initCatmullRom:function initCatmullRom(x0,x1,x2,x3,tension){init(x1,x2,tension*(x2-x0),tension*(x3-x1));},initNonuniformCatmullRom:function initNonuniformCatmullRom(x0,x1,x2,x3,dt0,dt1,dt2){// compute tangents when parameterized in [t1,t2]
var t1=(x1-x0)/dt0-(x2-x0)/(dt0+dt1)+(x2-x1)/dt1;var t2=(x2-x1)/dt1-(x3-x1)/(dt1+dt2)+(x3-x2)/dt2;// rescale tangents for parametrization in [0,1]
t1*=dt1;t2*=dt1;init(x1,x2,t1,t2);},calc:function calc(t){var t2=t*t;var t3=t2*t;return c0+c1*t+c2*t2+c3*t3;}};}//
var tmp=new Vector3();var px=new CubicPoly(),py=new CubicPoly(),pz=new CubicPoly();function CatmullRomCurve3(){var points=arguments.length>0&&arguments[0]!==undefined?arguments[0]:[];var closed=arguments.length>1&&arguments[1]!==undefined?arguments[1]:false;var curveType=arguments.length>2&&arguments[2]!==undefined?arguments[2]:'centripetal';var tension=arguments.length>3&&arguments[3]!==undefined?arguments[3]:0.5;Curve.call(this);this.type='CatmullRomCurve3';this.points=points;this.closed=closed;this.curveType=curveType;this.tension=tension;}CatmullRomCurve3.prototype=Object.create(Curve.prototype);CatmullRomCurve3.prototype.constructor=CatmullRomCurve3;CatmullRomCurve3.prototype.isCatmullRomCurve3=true;CatmullRomCurve3.prototype.getPoint=function(t){var optionalTarget=arguments.length>1&&arguments[1]!==undefined?arguments[1]:new Vector3();var point=optionalTarget;var points=this.points;var l=points.length;var p=(l-(this.closed?0:1))*t;var intPoint=Math.floor(p);var weight=p-intPoint;if(this.closed){intPoint+=intPoint>0?0:(Math.floor(Math.abs(intPoint)/l)+1)*l;}else if(weight===0&&intPoint===l-1){intPoint=l-2;weight=1;}var p0,p3;// 4 points (p1 & p2 defined below)
if(this.closed||intPoint>0){p0=points[(intPoint-1)%l];}else {// extrapolate first point
tmp.subVectors(points[0],points[1]).add(points[0]);p0=tmp;}var p1=points[intPoint%l];var p2=points[(intPoint+1)%l];if(this.closed||intPoint+2<l){p3=points[(intPoint+2)%l];}else {// extrapolate last point
tmp.subVectors(points[l-1],points[l-2]).add(points[l-1]);p3=tmp;}if(this.curveType==='centripetal'||this.curveType==='chordal'){// init Centripetal / Chordal Catmull-Rom
var pow=this.curveType==='chordal'?0.5:0.25;var dt0=Math.pow(p0.distanceToSquared(p1),pow);var dt1=Math.pow(p1.distanceToSquared(p2),pow);var dt2=Math.pow(p2.distanceToSquared(p3),pow);// safety check for repeated points
if(dt1<1e-4)dt1=1.0;if(dt0<1e-4)dt0=dt1;if(dt2<1e-4)dt2=dt1;px.initNonuniformCatmullRom(p0.x,p1.x,p2.x,p3.x,dt0,dt1,dt2);py.initNonuniformCatmullRom(p0.y,p1.y,p2.y,p3.y,dt0,dt1,dt2);pz.initNonuniformCatmullRom(p0.z,p1.z,p2.z,p3.z,dt0,dt1,dt2);}else if(this.curveType==='catmullrom'){px.initCatmullRom(p0.x,p1.x,p2.x,p3.x,this.tension);py.initCatmullRom(p0.y,p1.y,p2.y,p3.y,this.tension);pz.initCatmullRom(p0.z,p1.z,p2.z,p3.z,this.tension);}point.set(px.calc(weight),py.calc(weight),pz.calc(weight));return point;};CatmullRomCurve3.prototype.copy=function(source){Curve.prototype.copy.call(this,source);this.points=[];for(var _i280=0,l=source.points.length;_i280<l;_i280++){var point=source.points[_i280];this.points.push(point.clone());}this.closed=source.closed;this.curveType=source.curveType;this.tension=source.tension;return this;};CatmullRomCurve3.prototype.toJSON=function(){var data=Curve.prototype.toJSON.call(this);data.points=[];for(var _i281=0,l=this.points.length;_i281<l;_i281++){var point=this.points[_i281];data.points.push(point.toArray());}data.closed=this.closed;data.curveType=this.curveType;data.tension=this.tension;return data;};CatmullRomCurve3.prototype.fromJSON=function(json){Curve.prototype.fromJSON.call(this,json);this.points=[];for(var _i282=0,l=json.points.length;_i282<l;_i282++){var point=json.points[_i282];this.points.push(new Vector3().fromArray(point));}this.closed=json.closed;this.curveType=json.curveType;this.tension=json.tension;return this;};/**
 * Bezier Curves formulas obtained from
 * http://en.wikipedia.org/wiki/Bézier_curve
 */function CatmullRom(t,p0,p1,p2,p3){var v0=(p2-p0)*0.5;var v1=(p3-p1)*0.5;var t2=t*t;var t3=t*t2;return (2*p1-2*p2+v0+v1)*t3+(-3*p1+3*p2-2*v0-v1)*t2+v0*t+p1;}//
function QuadraticBezierP0(t,p){var k=1-t;return k*k*p;}function QuadraticBezierP1(t,p){return 2*(1-t)*t*p;}function QuadraticBezierP2(t,p){return t*t*p;}function QuadraticBezier(t,p0,p1,p2){return QuadraticBezierP0(t,p0)+QuadraticBezierP1(t,p1)+QuadraticBezierP2(t,p2);}//
function CubicBezierP0(t,p){var k=1-t;return k*k*k*p;}function CubicBezierP1(t,p){var k=1-t;return 3*k*k*t*p;}function CubicBezierP2(t,p){return 3*(1-t)*t*t*p;}function CubicBezierP3(t,p){return t*t*t*p;}function CubicBezier(t,p0,p1,p2,p3){return CubicBezierP0(t,p0)+CubicBezierP1(t,p1)+CubicBezierP2(t,p2)+CubicBezierP3(t,p3);}function CubicBezierCurve(){var v0=arguments.length>0&&arguments[0]!==undefined?arguments[0]:new Vector2();var v1=arguments.length>1&&arguments[1]!==undefined?arguments[1]:new Vector2();var v2=arguments.length>2&&arguments[2]!==undefined?arguments[2]:new Vector2();var v3=arguments.length>3&&arguments[3]!==undefined?arguments[3]:new Vector2();Curve.call(this);this.type='CubicBezierCurve';this.v0=v0;this.v1=v1;this.v2=v2;this.v3=v3;}CubicBezierCurve.prototype=Object.create(Curve.prototype);CubicBezierCurve.prototype.constructor=CubicBezierCurve;CubicBezierCurve.prototype.isCubicBezierCurve=true;CubicBezierCurve.prototype.getPoint=function(t){var optionalTarget=arguments.length>1&&arguments[1]!==undefined?arguments[1]:new Vector2();var point=optionalTarget;var v0=this.v0,v1=this.v1,v2=this.v2,v3=this.v3;point.set(CubicBezier(t,v0.x,v1.x,v2.x,v3.x),CubicBezier(t,v0.y,v1.y,v2.y,v3.y));return point;};CubicBezierCurve.prototype.copy=function(source){Curve.prototype.copy.call(this,source);this.v0.copy(source.v0);this.v1.copy(source.v1);this.v2.copy(source.v2);this.v3.copy(source.v3);return this;};CubicBezierCurve.prototype.toJSON=function(){var data=Curve.prototype.toJSON.call(this);data.v0=this.v0.toArray();data.v1=this.v1.toArray();data.v2=this.v2.toArray();data.v3=this.v3.toArray();return data;};CubicBezierCurve.prototype.fromJSON=function(json){Curve.prototype.fromJSON.call(this,json);this.v0.fromArray(json.v0);this.v1.fromArray(json.v1);this.v2.fromArray(json.v2);this.v3.fromArray(json.v3);return this;};function CubicBezierCurve3(){var v0=arguments.length>0&&arguments[0]!==undefined?arguments[0]:new Vector3();var v1=arguments.length>1&&arguments[1]!==undefined?arguments[1]:new Vector3();var v2=arguments.length>2&&arguments[2]!==undefined?arguments[2]:new Vector3();var v3=arguments.length>3&&arguments[3]!==undefined?arguments[3]:new Vector3();Curve.call(this);this.type='CubicBezierCurve3';this.v0=v0;this.v1=v1;this.v2=v2;this.v3=v3;}CubicBezierCurve3.prototype=Object.create(Curve.prototype);CubicBezierCurve3.prototype.constructor=CubicBezierCurve3;CubicBezierCurve3.prototype.isCubicBezierCurve3=true;CubicBezierCurve3.prototype.getPoint=function(t){var optionalTarget=arguments.length>1&&arguments[1]!==undefined?arguments[1]:new Vector3();var point=optionalTarget;var v0=this.v0,v1=this.v1,v2=this.v2,v3=this.v3;point.set(CubicBezier(t,v0.x,v1.x,v2.x,v3.x),CubicBezier(t,v0.y,v1.y,v2.y,v3.y),CubicBezier(t,v0.z,v1.z,v2.z,v3.z));return point;};CubicBezierCurve3.prototype.copy=function(source){Curve.prototype.copy.call(this,source);this.v0.copy(source.v0);this.v1.copy(source.v1);this.v2.copy(source.v2);this.v3.copy(source.v3);return this;};CubicBezierCurve3.prototype.toJSON=function(){var data=Curve.prototype.toJSON.call(this);data.v0=this.v0.toArray();data.v1=this.v1.toArray();data.v2=this.v2.toArray();data.v3=this.v3.toArray();return data;};CubicBezierCurve3.prototype.fromJSON=function(json){Curve.prototype.fromJSON.call(this,json);this.v0.fromArray(json.v0);this.v1.fromArray(json.v1);this.v2.fromArray(json.v2);this.v3.fromArray(json.v3);return this;};function LineCurve(){var v1=arguments.length>0&&arguments[0]!==undefined?arguments[0]:new Vector2();var v2=arguments.length>1&&arguments[1]!==undefined?arguments[1]:new Vector2();Curve.call(this);this.type='LineCurve';this.v1=v1;this.v2=v2;}LineCurve.prototype=Object.create(Curve.prototype);LineCurve.prototype.constructor=LineCurve;LineCurve.prototype.isLineCurve=true;LineCurve.prototype.getPoint=function(t){var optionalTarget=arguments.length>1&&arguments[1]!==undefined?arguments[1]:new Vector2();var point=optionalTarget;if(t===1){point.copy(this.v2);}else {point.copy(this.v2).sub(this.v1);point.multiplyScalar(t).add(this.v1);}return point;};// Line curve is linear, so we can overwrite default getPointAt
LineCurve.prototype.getPointAt=function(u,optionalTarget){return this.getPoint(u,optionalTarget);};LineCurve.prototype.getTangent=function(t,optionalTarget){var tangent=optionalTarget||new Vector2();tangent.copy(this.v2).sub(this.v1).normalize();return tangent;};LineCurve.prototype.copy=function(source){Curve.prototype.copy.call(this,source);this.v1.copy(source.v1);this.v2.copy(source.v2);return this;};LineCurve.prototype.toJSON=function(){var data=Curve.prototype.toJSON.call(this);data.v1=this.v1.toArray();data.v2=this.v2.toArray();return data;};LineCurve.prototype.fromJSON=function(json){Curve.prototype.fromJSON.call(this,json);this.v1.fromArray(json.v1);this.v2.fromArray(json.v2);return this;};function LineCurve3(){var v1=arguments.length>0&&arguments[0]!==undefined?arguments[0]:new Vector3();var v2=arguments.length>1&&arguments[1]!==undefined?arguments[1]:new Vector3();Curve.call(this);this.type='LineCurve3';this.v1=v1;this.v2=v2;}LineCurve3.prototype=Object.create(Curve.prototype);LineCurve3.prototype.constructor=LineCurve3;LineCurve3.prototype.isLineCurve3=true;LineCurve3.prototype.getPoint=function(t){var optionalTarget=arguments.length>1&&arguments[1]!==undefined?arguments[1]:new Vector3();var point=optionalTarget;if(t===1){point.copy(this.v2);}else {point.copy(this.v2).sub(this.v1);point.multiplyScalar(t).add(this.v1);}return point;};// Line curve is linear, so we can overwrite default getPointAt
LineCurve3.prototype.getPointAt=function(u,optionalTarget){return this.getPoint(u,optionalTarget);};LineCurve3.prototype.copy=function(source){Curve.prototype.copy.call(this,source);this.v1.copy(source.v1);this.v2.copy(source.v2);return this;};LineCurve3.prototype.toJSON=function(){var data=Curve.prototype.toJSON.call(this);data.v1=this.v1.toArray();data.v2=this.v2.toArray();return data;};LineCurve3.prototype.fromJSON=function(json){Curve.prototype.fromJSON.call(this,json);this.v1.fromArray(json.v1);this.v2.fromArray(json.v2);return this;};function QuadraticBezierCurve(){var v0=arguments.length>0&&arguments[0]!==undefined?arguments[0]:new Vector2();var v1=arguments.length>1&&arguments[1]!==undefined?arguments[1]:new Vector2();var v2=arguments.length>2&&arguments[2]!==undefined?arguments[2]:new Vector2();Curve.call(this);this.type='QuadraticBezierCurve';this.v0=v0;this.v1=v1;this.v2=v2;}QuadraticBezierCurve.prototype=Object.create(Curve.prototype);QuadraticBezierCurve.prototype.constructor=QuadraticBezierCurve;QuadraticBezierCurve.prototype.isQuadraticBezierCurve=true;QuadraticBezierCurve.prototype.getPoint=function(t){var optionalTarget=arguments.length>1&&arguments[1]!==undefined?arguments[1]:new Vector2();var point=optionalTarget;var v0=this.v0,v1=this.v1,v2=this.v2;point.set(QuadraticBezier(t,v0.x,v1.x,v2.x),QuadraticBezier(t,v0.y,v1.y,v2.y));return point;};QuadraticBezierCurve.prototype.copy=function(source){Curve.prototype.copy.call(this,source);this.v0.copy(source.v0);this.v1.copy(source.v1);this.v2.copy(source.v2);return this;};QuadraticBezierCurve.prototype.toJSON=function(){var data=Curve.prototype.toJSON.call(this);data.v0=this.v0.toArray();data.v1=this.v1.toArray();data.v2=this.v2.toArray();return data;};QuadraticBezierCurve.prototype.fromJSON=function(json){Curve.prototype.fromJSON.call(this,json);this.v0.fromArray(json.v0);this.v1.fromArray(json.v1);this.v2.fromArray(json.v2);return this;};function QuadraticBezierCurve3(){var v0=arguments.length>0&&arguments[0]!==undefined?arguments[0]:new Vector3();var v1=arguments.length>1&&arguments[1]!==undefined?arguments[1]:new Vector3();var v2=arguments.length>2&&arguments[2]!==undefined?arguments[2]:new Vector3();Curve.call(this);this.type='QuadraticBezierCurve3';this.v0=v0;this.v1=v1;this.v2=v2;}QuadraticBezierCurve3.prototype=Object.create(Curve.prototype);QuadraticBezierCurve3.prototype.constructor=QuadraticBezierCurve3;QuadraticBezierCurve3.prototype.isQuadraticBezierCurve3=true;QuadraticBezierCurve3.prototype.getPoint=function(t){var optionalTarget=arguments.length>1&&arguments[1]!==undefined?arguments[1]:new Vector3();var point=optionalTarget;var v0=this.v0,v1=this.v1,v2=this.v2;point.set(QuadraticBezier(t,v0.x,v1.x,v2.x),QuadraticBezier(t,v0.y,v1.y,v2.y),QuadraticBezier(t,v0.z,v1.z,v2.z));return point;};QuadraticBezierCurve3.prototype.copy=function(source){Curve.prototype.copy.call(this,source);this.v0.copy(source.v0);this.v1.copy(source.v1);this.v2.copy(source.v2);return this;};QuadraticBezierCurve3.prototype.toJSON=function(){var data=Curve.prototype.toJSON.call(this);data.v0=this.v0.toArray();data.v1=this.v1.toArray();data.v2=this.v2.toArray();return data;};QuadraticBezierCurve3.prototype.fromJSON=function(json){Curve.prototype.fromJSON.call(this,json);this.v0.fromArray(json.v0);this.v1.fromArray(json.v1);this.v2.fromArray(json.v2);return this;};function SplineCurve(){var points=arguments.length>0&&arguments[0]!==undefined?arguments[0]:[];Curve.call(this);this.type='SplineCurve';this.points=points;}SplineCurve.prototype=Object.create(Curve.prototype);SplineCurve.prototype.constructor=SplineCurve;SplineCurve.prototype.isSplineCurve=true;SplineCurve.prototype.getPoint=function(t){var optionalTarget=arguments.length>1&&arguments[1]!==undefined?arguments[1]:new Vector2();var point=optionalTarget;var points=this.points;var p=(points.length-1)*t;var intPoint=Math.floor(p);var weight=p-intPoint;var p0=points[intPoint===0?intPoint:intPoint-1];var p1=points[intPoint];var p2=points[intPoint>points.length-2?points.length-1:intPoint+1];var p3=points[intPoint>points.length-3?points.length-1:intPoint+2];point.set(CatmullRom(weight,p0.x,p1.x,p2.x,p3.x),CatmullRom(weight,p0.y,p1.y,p2.y,p3.y));return point;};SplineCurve.prototype.copy=function(source){Curve.prototype.copy.call(this,source);this.points=[];for(var _i283=0,l=source.points.length;_i283<l;_i283++){var point=source.points[_i283];this.points.push(point.clone());}return this;};SplineCurve.prototype.toJSON=function(){var data=Curve.prototype.toJSON.call(this);data.points=[];for(var _i284=0,l=this.points.length;_i284<l;_i284++){var point=this.points[_i284];data.points.push(point.toArray());}return data;};SplineCurve.prototype.fromJSON=function(json){Curve.prototype.fromJSON.call(this,json);this.points=[];for(var _i285=0,l=json.points.length;_i285<l;_i285++){var point=json.points[_i285];this.points.push(new Vector2().fromArray(point));}return this;};var Curves=/*#__PURE__*/Object.freeze({__proto__:null,ArcCurve:ArcCurve,CatmullRomCurve3:CatmullRomCurve3,CubicBezierCurve:CubicBezierCurve,CubicBezierCurve3:CubicBezierCurve3,EllipseCurve:EllipseCurve,LineCurve:LineCurve,LineCurve3:LineCurve3,QuadraticBezierCurve:QuadraticBezierCurve,QuadraticBezierCurve3:QuadraticBezierCurve3,SplineCurve:SplineCurve});/**************************************************************
 *	Curved Path - a curve path is simply a array of connected
 *  curves, but retains the api of a curve
 **************************************************************/function CurvePath(){Curve.call(this);this.type='CurvePath';this.curves=[];this.autoClose=false;// Automatically closes the path
}CurvePath.prototype=Object.assign(Object.create(Curve.prototype),{constructor:CurvePath,add:function add(curve){this.curves.push(curve);},closePath:function closePath(){// Add a line curve if start and end of lines are not connected
var startPoint=this.curves[0].getPoint(0);var endPoint=this.curves[this.curves.length-1].getPoint(1);if(!startPoint.equals(endPoint)){this.curves.push(new LineCurve(endPoint,startPoint));}},// To get accurate point with reference to
// entire path distance at time t,
// following has to be done:
// 1. Length of each sub path have to be known
// 2. Locate and identify type of curve
// 3. Get t for the curve
// 4. Return curve.getPointAt(t')
getPoint:function getPoint(t){var d=t*this.getLength();var curveLengths=this.getCurveLengths();var i=0;// To think about boundaries points.
while(i<curveLengths.length){if(curveLengths[i]>=d){var diff=curveLengths[i]-d;var curve=this.curves[i];var segmentLength=curve.getLength();var u=segmentLength===0?0:1-diff/segmentLength;return curve.getPointAt(u);}i++;}return null;// loop where sum != 0, sum > d , sum+1 <d
},// We cannot use the default THREE.Curve getPoint() with getLength() because in
// THREE.Curve, getLength() depends on getPoint() but in THREE.CurvePath
// getPoint() depends on getLength
getLength:function getLength(){var lens=this.getCurveLengths();return lens[lens.length-1];},// cacheLengths must be recalculated.
updateArcLengths:function updateArcLengths(){this.needsUpdate=true;this.cacheLengths=null;this.getCurveLengths();},// Compute lengths and cache them
// We cannot overwrite getLengths() because UtoT mapping uses it.
getCurveLengths:function getCurveLengths(){// We use cache values if curves and cache array are same length
if(this.cacheLengths&&this.cacheLengths.length===this.curves.length){return this.cacheLengths;}// Get length of sub-curve
// Push sums into cached array
var lengths=[];var sums=0;for(var _i286=0,l=this.curves.length;_i286<l;_i286++){sums+=this.curves[_i286].getLength();lengths.push(sums);}this.cacheLengths=lengths;return lengths;},getSpacedPoints:function getSpacedPoints(){var divisions=arguments.length>0&&arguments[0]!==undefined?arguments[0]:40;var points=[];for(var _i287=0;_i287<=divisions;_i287++){points.push(this.getPoint(_i287/divisions));}if(this.autoClose){points.push(points[0]);}return points;},getPoints:function getPoints(){var divisions=arguments.length>0&&arguments[0]!==undefined?arguments[0]:12;var points=[];var last;for(var _i288=0,curves=this.curves;_i288<curves.length;_i288++){var curve=curves[_i288];var resolution=curve&&curve.isEllipseCurve?divisions*2:curve&&(curve.isLineCurve||curve.isLineCurve3)?1:curve&&curve.isSplineCurve?divisions*curve.points.length:divisions;var pts=curve.getPoints(resolution);for(var j=0;j<pts.length;j++){var point=pts[j];if(last&&last.equals(point))continue;// ensures no consecutive points are duplicates
points.push(point);last=point;}}if(this.autoClose&&points.length>1&&!points[points.length-1].equals(points[0])){points.push(points[0]);}return points;},copy:function copy(source){Curve.prototype.copy.call(this,source);this.curves=[];for(var _i289=0,l=source.curves.length;_i289<l;_i289++){var curve=source.curves[_i289];this.curves.push(curve.clone());}this.autoClose=source.autoClose;return this;},toJSON:function toJSON(){var data=Curve.prototype.toJSON.call(this);data.autoClose=this.autoClose;data.curves=[];for(var _i290=0,l=this.curves.length;_i290<l;_i290++){var curve=this.curves[_i290];data.curves.push(curve.toJSON());}return data;},fromJSON:function fromJSON(json){Curve.prototype.fromJSON.call(this,json);this.autoClose=json.autoClose;this.curves=[];for(var _i291=0,l=json.curves.length;_i291<l;_i291++){var curve=json.curves[_i291];this.curves.push(new Curves[curve.type]().fromJSON(curve));}return this;}});function Path(points){CurvePath.call(this);this.type='Path';this.currentPoint=new Vector2();if(points){this.setFromPoints(points);}}Path.prototype=Object.assign(Object.create(CurvePath.prototype),{constructor:Path,setFromPoints:function setFromPoints(points){this.moveTo(points[0].x,points[0].y);for(var _i292=1,l=points.length;_i292<l;_i292++){this.lineTo(points[_i292].x,points[_i292].y);}return this;},moveTo:function moveTo(x,y){this.currentPoint.set(x,y);// TODO consider referencing vectors instead of copying?
return this;},lineTo:function lineTo(x,y){var curve=new LineCurve(this.currentPoint.clone(),new Vector2(x,y));this.curves.push(curve);this.currentPoint.set(x,y);return this;},quadraticCurveTo:function quadraticCurveTo(aCPx,aCPy,aX,aY){var curve=new QuadraticBezierCurve(this.currentPoint.clone(),new Vector2(aCPx,aCPy),new Vector2(aX,aY));this.curves.push(curve);this.currentPoint.set(aX,aY);return this;},bezierCurveTo:function bezierCurveTo(aCP1x,aCP1y,aCP2x,aCP2y,aX,aY){var curve=new CubicBezierCurve(this.currentPoint.clone(),new Vector2(aCP1x,aCP1y),new Vector2(aCP2x,aCP2y),new Vector2(aX,aY));this.curves.push(curve);this.currentPoint.set(aX,aY);return this;},splineThru:function splineThru(pts/*Array of Vector*/){var npts=[this.currentPoint.clone()].concat(pts);var curve=new SplineCurve(npts);this.curves.push(curve);this.currentPoint.copy(pts[pts.length-1]);return this;},arc:function arc(aX,aY,aRadius,aStartAngle,aEndAngle,aClockwise){var x0=this.currentPoint.x;var y0=this.currentPoint.y;this.absarc(aX+x0,aY+y0,aRadius,aStartAngle,aEndAngle,aClockwise);return this;},absarc:function absarc(aX,aY,aRadius,aStartAngle,aEndAngle,aClockwise){this.absellipse(aX,aY,aRadius,aRadius,aStartAngle,aEndAngle,aClockwise);return this;},ellipse:function ellipse(aX,aY,xRadius,yRadius,aStartAngle,aEndAngle,aClockwise,aRotation){var x0=this.currentPoint.x;var y0=this.currentPoint.y;this.absellipse(aX+x0,aY+y0,xRadius,yRadius,aStartAngle,aEndAngle,aClockwise,aRotation);return this;},absellipse:function absellipse(aX,aY,xRadius,yRadius,aStartAngle,aEndAngle,aClockwise,aRotation){var curve=new EllipseCurve(aX,aY,xRadius,yRadius,aStartAngle,aEndAngle,aClockwise,aRotation);if(this.curves.length>0){// if a previous curve is present, attempt to join
var firstPoint=curve.getPoint(0);if(!firstPoint.equals(this.currentPoint)){this.lineTo(firstPoint.x,firstPoint.y);}}this.curves.push(curve);var lastPoint=curve.getPoint(1);this.currentPoint.copy(lastPoint);return this;},copy:function copy(source){CurvePath.prototype.copy.call(this,source);this.currentPoint.copy(source.currentPoint);return this;},toJSON:function toJSON(){var data=CurvePath.prototype.toJSON.call(this);data.currentPoint=this.currentPoint.toArray();return data;},fromJSON:function fromJSON(json){CurvePath.prototype.fromJSON.call(this,json);this.currentPoint.fromArray(json.currentPoint);return this;}});function Shape(points){Path.call(this,points);this.uuid=MathUtils.generateUUID();this.type='Shape';this.holes=[];}Shape.prototype=Object.assign(Object.create(Path.prototype),{constructor:Shape,getPointsHoles:function getPointsHoles(divisions){var holesPts=[];for(var _i293=0,l=this.holes.length;_i293<l;_i293++){holesPts[_i293]=this.holes[_i293].getPoints(divisions);}return holesPts;},// get points of shape and holes (keypoints based on segments parameter)
extractPoints:function extractPoints(divisions){return {shape:this.getPoints(divisions),holes:this.getPointsHoles(divisions)};},copy:function copy(source){Path.prototype.copy.call(this,source);this.holes=[];for(var _i294=0,l=source.holes.length;_i294<l;_i294++){var hole=source.holes[_i294];this.holes.push(hole.clone());}return this;},toJSON:function toJSON(){var data=Path.prototype.toJSON.call(this);data.uuid=this.uuid;data.holes=[];for(var _i295=0,l=this.holes.length;_i295<l;_i295++){var hole=this.holes[_i295];data.holes.push(hole.toJSON());}return data;},fromJSON:function fromJSON(json){Path.prototype.fromJSON.call(this,json);this.uuid=json.uuid;this.holes=[];for(var _i296=0,l=json.holes.length;_i296<l;_i296++){var hole=json.holes[_i296];this.holes.push(new Path().fromJSON(hole));}return this;}});function Light(color){var intensity=arguments.length>1&&arguments[1]!==undefined?arguments[1]:1;Object3D.call(this);this.type='Light';this.color=new Color(color);this.intensity=intensity;}Light.prototype=Object.assign(Object.create(Object3D.prototype),{constructor:Light,isLight:true,copy:function copy(source){Object3D.prototype.copy.call(this,source);this.color.copy(source.color);this.intensity=source.intensity;return this;},toJSON:function toJSON(meta){var data=Object3D.prototype.toJSON.call(this,meta);data.object.color=this.color.getHex();data.object.intensity=this.intensity;if(this.groundColor!==undefined)data.object.groundColor=this.groundColor.getHex();if(this.distance!==undefined)data.object.distance=this.distance;if(this.angle!==undefined)data.object.angle=this.angle;if(this.decay!==undefined)data.object.decay=this.decay;if(this.penumbra!==undefined)data.object.penumbra=this.penumbra;if(this.shadow!==undefined)data.object.shadow=this.shadow.toJSON();return data;}});function HemisphereLight(skyColor,groundColor,intensity){Light.call(this,skyColor,intensity);this.type='HemisphereLight';this.position.copy(Object3D.DefaultUp);this.updateMatrix();this.groundColor=new Color(groundColor);}HemisphereLight.prototype=Object.assign(Object.create(Light.prototype),{constructor:HemisphereLight,isHemisphereLight:true,copy:function copy(source){Light.prototype.copy.call(this,source);this.groundColor.copy(source.groundColor);return this;}});function LightShadow(camera){this.camera=camera;this.bias=0;this.normalBias=0;this.radius=1;this.mapSize=new Vector2(512,512);this.map=null;this.mapPass=null;this.matrix=new Matrix4();this.autoUpdate=true;this.needsUpdate=false;this._frustum=new Frustum();this._frameExtents=new Vector2(1,1);this._viewportCount=1;this._viewports=[new Vector4(0,0,1,1)];}Object.assign(LightShadow.prototype,{_projScreenMatrix:new Matrix4(),_lightPositionWorld:new Vector3(),_lookTarget:new Vector3(),getViewportCount:function getViewportCount(){return this._viewportCount;},getFrustum:function getFrustum(){return this._frustum;},updateMatrices:function updateMatrices(light){var shadowCamera=this.camera,shadowMatrix=this.matrix,projScreenMatrix=this._projScreenMatrix,lookTarget=this._lookTarget,lightPositionWorld=this._lightPositionWorld;lightPositionWorld.setFromMatrixPosition(light.matrixWorld);shadowCamera.position.copy(lightPositionWorld);lookTarget.setFromMatrixPosition(light.target.matrixWorld);shadowCamera.lookAt(lookTarget);shadowCamera.updateMatrixWorld();projScreenMatrix.multiplyMatrices(shadowCamera.projectionMatrix,shadowCamera.matrixWorldInverse);this._frustum.setFromProjectionMatrix(projScreenMatrix);shadowMatrix.set(0.5,0.0,0.0,0.5,0.0,0.5,0.0,0.5,0.0,0.0,0.5,0.5,0.0,0.0,0.0,1.0);shadowMatrix.multiply(shadowCamera.projectionMatrix);shadowMatrix.multiply(shadowCamera.matrixWorldInverse);},getViewport:function getViewport(viewportIndex){return this._viewports[viewportIndex];},getFrameExtents:function getFrameExtents(){return this._frameExtents;},copy:function copy(source){this.camera=source.camera.clone();this.bias=source.bias;this.radius=source.radius;this.mapSize.copy(source.mapSize);return this;},clone:function clone(){return new this.constructor().copy(this);},toJSON:function toJSON(){var object={};if(this.bias!==0)object.bias=this.bias;if(this.normalBias!==0)object.normalBias=this.normalBias;if(this.radius!==1)object.radius=this.radius;if(this.mapSize.x!==512||this.mapSize.y!==512)object.mapSize=this.mapSize.toArray();object.camera=this.camera.toJSON(false).object;delete object.camera.matrix;return object;}});function SpotLightShadow(){LightShadow.call(this,new PerspectiveCamera(50,1,0.5,500));this.focus=1;}SpotLightShadow.prototype=Object.assign(Object.create(LightShadow.prototype),{constructor:SpotLightShadow,isSpotLightShadow:true,updateMatrices:function updateMatrices(light){var camera=this.camera;var fov=MathUtils.RAD2DEG*2*light.angle*this.focus;var aspect=this.mapSize.width/this.mapSize.height;var far=light.distance||camera.far;if(fov!==camera.fov||aspect!==camera.aspect||far!==camera.far){camera.fov=fov;camera.aspect=aspect;camera.far=far;camera.updateProjectionMatrix();}LightShadow.prototype.updateMatrices.call(this,light);}});function SpotLight(color,intensity,distance,angle,penumbra,decay){Light.call(this,color,intensity);this.type='SpotLight';this.position.copy(Object3D.DefaultUp);this.updateMatrix();this.target=new Object3D();Object.defineProperty(this,'power',{get:function get(){// intensity = power per solid angle.
// ref: equation (17) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
return this.intensity*Math.PI;},set:function set(power){// intensity = power per solid angle.
// ref: equation (17) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
this.intensity=power/Math.PI;}});this.distance=distance!==undefined?distance:0;this.angle=angle!==undefined?angle:Math.PI/3;this.penumbra=penumbra!==undefined?penumbra:0;this.decay=decay!==undefined?decay:1;// for physically correct lights, should be 2.
this.shadow=new SpotLightShadow();}SpotLight.prototype=Object.assign(Object.create(Light.prototype),{constructor:SpotLight,isSpotLight:true,copy:function copy(source){Light.prototype.copy.call(this,source);this.distance=source.distance;this.angle=source.angle;this.penumbra=source.penumbra;this.decay=source.decay;this.target=source.target.clone();this.shadow=source.shadow.clone();return this;}});function PointLightShadow(){LightShadow.call(this,new PerspectiveCamera(90,1,0.5,500));this._frameExtents=new Vector2(4,2);this._viewportCount=6;this._viewports=[// These viewports map a cube-map onto a 2D texture with the
// following orientation:
//
//  xzXZ
//   y Y
//
// X - Positive x direction
// x - Negative x direction
// Y - Positive y direction
// y - Negative y direction
// Z - Positive z direction
// z - Negative z direction
// positive X
new Vector4(2,1,1,1),// negative X
new Vector4(0,1,1,1),// positive Z
new Vector4(3,1,1,1),// negative Z
new Vector4(1,1,1,1),// positive Y
new Vector4(3,0,1,1),// negative Y
new Vector4(1,0,1,1)];this._cubeDirections=[new Vector3(1,0,0),new Vector3(-1,0,0),new Vector3(0,0,1),new Vector3(0,0,-1),new Vector3(0,1,0),new Vector3(0,-1,0)];this._cubeUps=[new Vector3(0,1,0),new Vector3(0,1,0),new Vector3(0,1,0),new Vector3(0,1,0),new Vector3(0,0,1),new Vector3(0,0,-1)];}PointLightShadow.prototype=Object.assign(Object.create(LightShadow.prototype),{constructor:PointLightShadow,isPointLightShadow:true,updateMatrices:function updateMatrices(light){var viewportIndex=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;var camera=this.camera,shadowMatrix=this.matrix,lightPositionWorld=this._lightPositionWorld,lookTarget=this._lookTarget,projScreenMatrix=this._projScreenMatrix;lightPositionWorld.setFromMatrixPosition(light.matrixWorld);camera.position.copy(lightPositionWorld);lookTarget.copy(camera.position);lookTarget.add(this._cubeDirections[viewportIndex]);camera.up.copy(this._cubeUps[viewportIndex]);camera.lookAt(lookTarget);camera.updateMatrixWorld();shadowMatrix.makeTranslation(-lightPositionWorld.x,-lightPositionWorld.y,-lightPositionWorld.z);projScreenMatrix.multiplyMatrices(camera.projectionMatrix,camera.matrixWorldInverse);this._frustum.setFromProjectionMatrix(projScreenMatrix);}});function PointLight(color,intensity,distance,decay){Light.call(this,color,intensity);this.type='PointLight';Object.defineProperty(this,'power',{get:function get(){// intensity = power per solid angle.
// ref: equation (15) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
return this.intensity*4*Math.PI;},set:function set(power){// intensity = power per solid angle.
// ref: equation (15) from https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf
this.intensity=power/(4*Math.PI);}});this.distance=distance!==undefined?distance:0;this.decay=decay!==undefined?decay:1;// for physically correct lights, should be 2.
this.shadow=new PointLightShadow();}PointLight.prototype=Object.assign(Object.create(Light.prototype),{constructor:PointLight,isPointLight:true,copy:function copy(source){Light.prototype.copy.call(this,source);this.distance=source.distance;this.decay=source.decay;this.shadow=source.shadow.clone();return this;}});function OrthographicCamera(){var left=arguments.length>0&&arguments[0]!==undefined?arguments[0]:-1;var right=arguments.length>1&&arguments[1]!==undefined?arguments[1]:1;var top=arguments.length>2&&arguments[2]!==undefined?arguments[2]:1;var bottom=arguments.length>3&&arguments[3]!==undefined?arguments[3]:-1;var near=arguments.length>4&&arguments[4]!==undefined?arguments[4]:0.1;var far=arguments.length>5&&arguments[5]!==undefined?arguments[5]:2000;Camera.call(this);this.type='OrthographicCamera';this.zoom=1;this.view=null;this.left=left;this.right=right;this.top=top;this.bottom=bottom;this.near=near;this.far=far;this.updateProjectionMatrix();}OrthographicCamera.prototype=Object.assign(Object.create(Camera.prototype),{constructor:OrthographicCamera,isOrthographicCamera:true,copy:function copy(source,recursive){Camera.prototype.copy.call(this,source,recursive);this.left=source.left;this.right=source.right;this.top=source.top;this.bottom=source.bottom;this.near=source.near;this.far=source.far;this.zoom=source.zoom;this.view=source.view===null?null:Object.assign({},source.view);return this;},setViewOffset:function setViewOffset(fullWidth,fullHeight,x,y,width,height){if(this.view===null){this.view={enabled:true,fullWidth:1,fullHeight:1,offsetX:0,offsetY:0,width:1,height:1};}this.view.enabled=true;this.view.fullWidth=fullWidth;this.view.fullHeight=fullHeight;this.view.offsetX=x;this.view.offsetY=y;this.view.width=width;this.view.height=height;this.updateProjectionMatrix();},clearViewOffset:function clearViewOffset(){if(this.view!==null){this.view.enabled=false;}this.updateProjectionMatrix();},updateProjectionMatrix:function updateProjectionMatrix(){var dx=(this.right-this.left)/(2*this.zoom);var dy=(this.top-this.bottom)/(2*this.zoom);var cx=(this.right+this.left)/2;var cy=(this.top+this.bottom)/2;var left=cx-dx;var right=cx+dx;var top=cy+dy;var bottom=cy-dy;if(this.view!==null&&this.view.enabled){var scaleW=(this.right-this.left)/this.view.fullWidth/this.zoom;var scaleH=(this.top-this.bottom)/this.view.fullHeight/this.zoom;left+=scaleW*this.view.offsetX;right=left+scaleW*this.view.width;top-=scaleH*this.view.offsetY;bottom=top-scaleH*this.view.height;}this.projectionMatrix.makeOrthographic(left,right,top,bottom,this.near,this.far);this.projectionMatrixInverse.copy(this.projectionMatrix).invert();},toJSON:function toJSON(meta){var data=Object3D.prototype.toJSON.call(this,meta);data.object.zoom=this.zoom;data.object.left=this.left;data.object.right=this.right;data.object.top=this.top;data.object.bottom=this.bottom;data.object.near=this.near;data.object.far=this.far;if(this.view!==null)data.object.view=Object.assign({},this.view);return data;}});function DirectionalLightShadow(){LightShadow.call(this,new OrthographicCamera(-5,5,5,-5,0.5,500));}DirectionalLightShadow.prototype=Object.assign(Object.create(LightShadow.prototype),{constructor:DirectionalLightShadow,isDirectionalLightShadow:true,updateMatrices:function updateMatrices(light){LightShadow.prototype.updateMatrices.call(this,light);}});function DirectionalLight(color,intensity){Light.call(this,color,intensity);this.type='DirectionalLight';this.position.copy(Object3D.DefaultUp);this.updateMatrix();this.target=new Object3D();this.shadow=new DirectionalLightShadow();}DirectionalLight.prototype=Object.assign(Object.create(Light.prototype),{constructor:DirectionalLight,isDirectionalLight:true,copy:function copy(source){Light.prototype.copy.call(this,source);this.target=source.target.clone();this.shadow=source.shadow.clone();return this;}});function AmbientLight(color,intensity){Light.call(this,color,intensity);this.type='AmbientLight';}AmbientLight.prototype=Object.assign(Object.create(Light.prototype),{constructor:AmbientLight,isAmbientLight:true});function RectAreaLight(color,intensity,width,height){Light.call(this,color,intensity);this.type='RectAreaLight';this.width=width!==undefined?width:10;this.height=height!==undefined?height:10;}RectAreaLight.prototype=Object.assign(Object.create(Light.prototype),{constructor:RectAreaLight,isRectAreaLight:true,copy:function copy(source){Light.prototype.copy.call(this,source);this.width=source.width;this.height=source.height;return this;},toJSON:function toJSON(meta){var data=Light.prototype.toJSON.call(this,meta);data.object.width=this.width;data.object.height=this.height;return data;}});/**
 * Primary reference:
 *   https://graphics.stanford.edu/papers/envmap/envmap.pdf
 *
 * Secondary reference:
 *   https://www.ppsloan.org/publications/StupidSH36.pdf
 */ // 3-band SH defined by 9 coefficients
class SphericalHarmonics3{constructor(){Object.defineProperty(this,'isSphericalHarmonics3',{value:true});this.coefficients=[];for(var _i297=0;_i297<9;_i297++){this.coefficients.push(new Vector3());}}set(coefficients){for(var _i298=0;_i298<9;_i298++){this.coefficients[_i298].copy(coefficients[_i298]);}return this;}zero(){for(var _i299=0;_i299<9;_i299++){this.coefficients[_i299].set(0,0,0);}return this;}// get the radiance in the direction of the normal
// target is a Vector3
getAt(normal,target){// normal is assumed to be unit length
var x=normal.x,y=normal.y,z=normal.z;var coeff=this.coefficients;// band 0
target.copy(coeff[0]).multiplyScalar(0.282095);// band 1
target.addScaledVector(coeff[1],0.488603*y);target.addScaledVector(coeff[2],0.488603*z);target.addScaledVector(coeff[3],0.488603*x);// band 2
target.addScaledVector(coeff[4],1.092548*(x*y));target.addScaledVector(coeff[5],1.092548*(y*z));target.addScaledVector(coeff[6],0.315392*(3.0*z*z-1.0));target.addScaledVector(coeff[7],1.092548*(x*z));target.addScaledVector(coeff[8],0.546274*(x*x-y*y));return target;}// get the irradiance (radiance convolved with cosine lobe) in the direction of the normal
// target is a Vector3
// https://graphics.stanford.edu/papers/envmap/envmap.pdf
getIrradianceAt(normal,target){// normal is assumed to be unit length
var x=normal.x,y=normal.y,z=normal.z;var coeff=this.coefficients;// band 0
target.copy(coeff[0]).multiplyScalar(0.886227);// π * 0.282095
// band 1
target.addScaledVector(coeff[1],2.0*0.511664*y);// ( 2 * π / 3 ) * 0.488603
target.addScaledVector(coeff[2],2.0*0.511664*z);target.addScaledVector(coeff[3],2.0*0.511664*x);// band 2
target.addScaledVector(coeff[4],2.0*0.429043*x*y);// ( π / 4 ) * 1.092548
target.addScaledVector(coeff[5],2.0*0.429043*y*z);target.addScaledVector(coeff[6],0.743125*z*z-0.247708);// ( π / 4 ) * 0.315392 * 3
target.addScaledVector(coeff[7],2.0*0.429043*x*z);target.addScaledVector(coeff[8],0.429043*(x*x-y*y));// ( π / 4 ) * 0.546274
return target;}add(sh){for(var _i300=0;_i300<9;_i300++){this.coefficients[_i300].add(sh.coefficients[_i300]);}return this;}addScaledSH(sh,s){for(var _i301=0;_i301<9;_i301++){this.coefficients[_i301].addScaledVector(sh.coefficients[_i301],s);}return this;}scale(s){for(var _i302=0;_i302<9;_i302++){this.coefficients[_i302].multiplyScalar(s);}return this;}lerp(sh,alpha){for(var _i303=0;_i303<9;_i303++){this.coefficients[_i303].lerp(sh.coefficients[_i303],alpha);}return this;}equals(sh){for(var _i304=0;_i304<9;_i304++){if(!this.coefficients[_i304].equals(sh.coefficients[_i304])){return false;}}return true;}copy(sh){return this.set(sh.coefficients);}clone(){return new this.constructor().copy(this);}fromArray(array){var offset=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;var coefficients=this.coefficients;for(var _i305=0;_i305<9;_i305++){coefficients[_i305].fromArray(array,offset+_i305*3);}return this;}toArray(){var array=arguments.length>0&&arguments[0]!==undefined?arguments[0]:[];var offset=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;var coefficients=this.coefficients;for(var _i306=0;_i306<9;_i306++){coefficients[_i306].toArray(array,offset+_i306*3);}return array;}// evaluate the basis functions
// shBasis is an Array[ 9 ]
static getBasisAt(normal,shBasis){// normal is assumed to be unit length
var x=normal.x,y=normal.y,z=normal.z;// band 0
shBasis[0]=0.282095;// band 1
shBasis[1]=0.488603*y;shBasis[2]=0.488603*z;shBasis[3]=0.488603*x;// band 2
shBasis[4]=1.092548*x*y;shBasis[5]=1.092548*y*z;shBasis[6]=0.315392*(3*z*z-1);shBasis[7]=1.092548*x*z;shBasis[8]=0.546274*(x*x-y*y);}}function LightProbe(sh,intensity){Light.call(this,undefined,intensity);this.type='LightProbe';this.sh=sh!==undefined?sh:new SphericalHarmonics3();}LightProbe.prototype=Object.assign(Object.create(Light.prototype),{constructor:LightProbe,isLightProbe:true,copy:function copy(source){Light.prototype.copy.call(this,source);this.sh.copy(source.sh);return this;},fromJSON:function fromJSON(json){this.intensity=json.intensity;// TODO: Move this bit to Light.fromJSON();
this.sh.fromArray(json.sh);return this;},toJSON:function toJSON(meta){var data=Light.prototype.toJSON.call(this,meta);data.object.sh=this.sh.toArray();return data;}});function MaterialLoader(manager){Loader.call(this,manager);this.textures={};}MaterialLoader.prototype=Object.assign(Object.create(Loader.prototype),{constructor:MaterialLoader,load:function load(url,onLoad,onProgress,onError){var scope=this;var loader=new FileLoader(scope.manager);loader.setPath(scope.path);loader.setRequestHeader(scope.requestHeader);loader.setWithCredentials(scope.withCredentials);loader.load(url,function(text){try{onLoad(scope.parse(JSON.parse(text)));}catch(e){if(onError){onError(e);}else {console.error(e);}scope.manager.itemError(url);}},onProgress,onError);},parse:function parse(json){var textures=this.textures;function getTexture(name){if(textures[name]===undefined){console.warn('THREE.MaterialLoader: Undefined texture',name);}return textures[name];}var material=new Materials[json.type]();if(json.uuid!==undefined)material.uuid=json.uuid;if(json.name!==undefined)material.name=json.name;if(json.color!==undefined&&material.color!==undefined)material.color.setHex(json.color);if(json.roughness!==undefined)material.roughness=json.roughness;if(json.metalness!==undefined)material.metalness=json.metalness;if(json.sheen!==undefined)material.sheen=new Color().setHex(json.sheen);if(json.emissive!==undefined&&material.emissive!==undefined)material.emissive.setHex(json.emissive);if(json.specular!==undefined&&material.specular!==undefined)material.specular.setHex(json.specular);if(json.shininess!==undefined)material.shininess=json.shininess;if(json.clearcoat!==undefined)material.clearcoat=json.clearcoat;if(json.clearcoatRoughness!==undefined)material.clearcoatRoughness=json.clearcoatRoughness;if(json.fog!==undefined)material.fog=json.fog;if(json.flatShading!==undefined)material.flatShading=json.flatShading;if(json.blending!==undefined)material.blending=json.blending;if(json.combine!==undefined)material.combine=json.combine;if(json.side!==undefined)material.side=json.side;if(json.opacity!==undefined)material.opacity=json.opacity;if(json.transparent!==undefined)material.transparent=json.transparent;if(json.alphaTest!==undefined)material.alphaTest=json.alphaTest;if(json.depthTest!==undefined)material.depthTest=json.depthTest;if(json.depthWrite!==undefined)material.depthWrite=json.depthWrite;if(json.colorWrite!==undefined)material.colorWrite=json.colorWrite;if(json.stencilWrite!==undefined)material.stencilWrite=json.stencilWrite;if(json.stencilWriteMask!==undefined)material.stencilWriteMask=json.stencilWriteMask;if(json.stencilFunc!==undefined)material.stencilFunc=json.stencilFunc;if(json.stencilRef!==undefined)material.stencilRef=json.stencilRef;if(json.stencilFuncMask!==undefined)material.stencilFuncMask=json.stencilFuncMask;if(json.stencilFail!==undefined)material.stencilFail=json.stencilFail;if(json.stencilZFail!==undefined)material.stencilZFail=json.stencilZFail;if(json.stencilZPass!==undefined)material.stencilZPass=json.stencilZPass;if(json.wireframe!==undefined)material.wireframe=json.wireframe;if(json.wireframeLinewidth!==undefined)material.wireframeLinewidth=json.wireframeLinewidth;if(json.wireframeLinecap!==undefined)material.wireframeLinecap=json.wireframeLinecap;if(json.wireframeLinejoin!==undefined)material.wireframeLinejoin=json.wireframeLinejoin;if(json.rotation!==undefined)material.rotation=json.rotation;if(json.linewidth!==1)material.linewidth=json.linewidth;if(json.dashSize!==undefined)material.dashSize=json.dashSize;if(json.gapSize!==undefined)material.gapSize=json.gapSize;if(json.scale!==undefined)material.scale=json.scale;if(json.polygonOffset!==undefined)material.polygonOffset=json.polygonOffset;if(json.polygonOffsetFactor!==undefined)material.polygonOffsetFactor=json.polygonOffsetFactor;if(json.polygonOffsetUnits!==undefined)material.polygonOffsetUnits=json.polygonOffsetUnits;if(json.skinning!==undefined)material.skinning=json.skinning;if(json.morphTargets!==undefined)material.morphTargets=json.morphTargets;if(json.morphNormals!==undefined)material.morphNormals=json.morphNormals;if(json.dithering!==undefined)material.dithering=json.dithering;if(json.vertexTangents!==undefined)material.vertexTangents=json.vertexTangents;if(json.visible!==undefined)material.visible=json.visible;if(json.toneMapped!==undefined)material.toneMapped=json.toneMapped;if(json.userData!==undefined)material.userData=json.userData;if(json.vertexColors!==undefined){if(typeof json.vertexColors==='number'){material.vertexColors=json.vertexColors>0?true:false;}else {material.vertexColors=json.vertexColors;}}// Shader Material
if(json.uniforms!==undefined){for(var name in json.uniforms){var uniform=json.uniforms[name];material.uniforms[name]={};switch(uniform.type){case't':material.uniforms[name].value=getTexture(uniform.value);break;case'c':material.uniforms[name].value=new Color().setHex(uniform.value);break;case'v2':material.uniforms[name].value=new Vector2().fromArray(uniform.value);break;case'v3':material.uniforms[name].value=new Vector3().fromArray(uniform.value);break;case'v4':material.uniforms[name].value=new Vector4().fromArray(uniform.value);break;case'm3':material.uniforms[name].value=new Matrix3().fromArray(uniform.value);break;case'm4':material.uniforms[name].value=new Matrix4().fromArray(uniform.value);break;default:material.uniforms[name].value=uniform.value;}}}if(json.defines!==undefined)material.defines=json.defines;if(json.vertexShader!==undefined)material.vertexShader=json.vertexShader;if(json.fragmentShader!==undefined)material.fragmentShader=json.fragmentShader;if(json.extensions!==undefined){for(var key in json.extensions){material.extensions[key]=json.extensions[key];}}// Deprecated
if(json.shading!==undefined)material.flatShading=json.shading===1;// THREE.FlatShading
// for PointsMaterial
if(json.size!==undefined)material.size=json.size;if(json.sizeAttenuation!==undefined)material.sizeAttenuation=json.sizeAttenuation;// maps
if(json.map!==undefined)material.map=getTexture(json.map);if(json.matcap!==undefined)material.matcap=getTexture(json.matcap);if(json.alphaMap!==undefined)material.alphaMap=getTexture(json.alphaMap);if(json.bumpMap!==undefined)material.bumpMap=getTexture(json.bumpMap);if(json.bumpScale!==undefined)material.bumpScale=json.bumpScale;if(json.normalMap!==undefined)material.normalMap=getTexture(json.normalMap);if(json.normalMapType!==undefined)material.normalMapType=json.normalMapType;if(json.normalScale!==undefined){var normalScale=json.normalScale;if(Array.isArray(normalScale)===false){// Blender exporter used to export a scalar. See #7459
normalScale=[normalScale,normalScale];}material.normalScale=new Vector2().fromArray(normalScale);}if(json.displacementMap!==undefined)material.displacementMap=getTexture(json.displacementMap);if(json.displacementScale!==undefined)material.displacementScale=json.displacementScale;if(json.displacementBias!==undefined)material.displacementBias=json.displacementBias;if(json.roughnessMap!==undefined)material.roughnessMap=getTexture(json.roughnessMap);if(json.metalnessMap!==undefined)material.metalnessMap=getTexture(json.metalnessMap);if(json.emissiveMap!==undefined)material.emissiveMap=getTexture(json.emissiveMap);if(json.emissiveIntensity!==undefined)material.emissiveIntensity=json.emissiveIntensity;if(json.specularMap!==undefined)material.specularMap=getTexture(json.specularMap);if(json.envMap!==undefined)material.envMap=getTexture(json.envMap);if(json.envMapIntensity!==undefined)material.envMapIntensity=json.envMapIntensity;if(json.reflectivity!==undefined)material.reflectivity=json.reflectivity;if(json.refractionRatio!==undefined)material.refractionRatio=json.refractionRatio;if(json.lightMap!==undefined)material.lightMap=getTexture(json.lightMap);if(json.lightMapIntensity!==undefined)material.lightMapIntensity=json.lightMapIntensity;if(json.aoMap!==undefined)material.aoMap=getTexture(json.aoMap);if(json.aoMapIntensity!==undefined)material.aoMapIntensity=json.aoMapIntensity;if(json.gradientMap!==undefined)material.gradientMap=getTexture(json.gradientMap);if(json.clearcoatMap!==undefined)material.clearcoatMap=getTexture(json.clearcoatMap);if(json.clearcoatRoughnessMap!==undefined)material.clearcoatRoughnessMap=getTexture(json.clearcoatRoughnessMap);if(json.clearcoatNormalMap!==undefined)material.clearcoatNormalMap=getTexture(json.clearcoatNormalMap);if(json.clearcoatNormalScale!==undefined)material.clearcoatNormalScale=new Vector2().fromArray(json.clearcoatNormalScale);if(json.transmission!==undefined)material.transmission=json.transmission;if(json.transmissionMap!==undefined)material.transmissionMap=getTexture(json.transmissionMap);return material;},setTextures:function setTextures(value){this.textures=value;return this;}});var LoaderUtils={decodeText:function decodeText(array){if(typeof TextDecoder!=='undefined'){return new TextDecoder().decode(array);}// Avoid the String.fromCharCode.apply(null, array) shortcut, which
// throws a "maximum call stack size exceeded" error for large arrays.
var s='';for(var _i307=0,il=array.length;_i307<il;_i307++){// Implicitly assumes little-endian.
s+=String.fromCharCode(array[_i307]);}try{// merges multi-byte utf-8 characters.
return decodeURIComponent(escape(s));}catch(e){// see #16358
return s;}},extractUrlBase:function extractUrlBase(url){var index=url.lastIndexOf('/');if(index===-1)return './';return url.substr(0,index+1);}};function InstancedBufferGeometry(){BufferGeometry.call(this);this.type='InstancedBufferGeometry';this.instanceCount=Infinity;}InstancedBufferGeometry.prototype=Object.assign(Object.create(BufferGeometry.prototype),{constructor:InstancedBufferGeometry,isInstancedBufferGeometry:true,copy:function copy(source){BufferGeometry.prototype.copy.call(this,source);this.instanceCount=source.instanceCount;return this;},clone:function clone(){return new this.constructor().copy(this);},toJSON:function toJSON(){var data=BufferGeometry.prototype.toJSON.call(this);data.instanceCount=this.instanceCount;data.isInstancedBufferGeometry=true;return data;}});function InstancedBufferAttribute(array,itemSize,normalized,meshPerAttribute){if(typeof normalized==='number'){meshPerAttribute=normalized;normalized=false;console.error('THREE.InstancedBufferAttribute: The constructor now expects normalized as the third argument.');}BufferAttribute.call(this,array,itemSize,normalized);this.meshPerAttribute=meshPerAttribute||1;}InstancedBufferAttribute.prototype=Object.assign(Object.create(BufferAttribute.prototype),{constructor:InstancedBufferAttribute,isInstancedBufferAttribute:true,copy:function copy(source){BufferAttribute.prototype.copy.call(this,source);this.meshPerAttribute=source.meshPerAttribute;return this;},toJSON:function toJSON(){var data=BufferAttribute.prototype.toJSON.call(this);data.meshPerAttribute=this.meshPerAttribute;data.isInstancedBufferAttribute=true;return data;}});function BufferGeometryLoader(manager){Loader.call(this,manager);}BufferGeometryLoader.prototype=Object.assign(Object.create(Loader.prototype),{constructor:BufferGeometryLoader,load:function load(url,onLoad,onProgress,onError){var scope=this;var loader=new FileLoader(scope.manager);loader.setPath(scope.path);loader.setRequestHeader(scope.requestHeader);loader.setWithCredentials(scope.withCredentials);loader.load(url,function(text){try{onLoad(scope.parse(JSON.parse(text)));}catch(e){if(onError){onError(e);}else {console.error(e);}scope.manager.itemError(url);}},onProgress,onError);},parse:function parse(json){var interleavedBufferMap={};var arrayBufferMap={};function getInterleavedBuffer(json,uuid){if(interleavedBufferMap[uuid]!==undefined)return interleavedBufferMap[uuid];var interleavedBuffers=json.interleavedBuffers;var interleavedBuffer=interleavedBuffers[uuid];var buffer=getArrayBuffer(json,interleavedBuffer.buffer);var array=getTypedArray(interleavedBuffer.type,buffer);var ib=new InterleavedBuffer(array,interleavedBuffer.stride);ib.uuid=interleavedBuffer.uuid;interleavedBufferMap[uuid]=ib;return ib;}function getArrayBuffer(json,uuid){if(arrayBufferMap[uuid]!==undefined)return arrayBufferMap[uuid];var arrayBuffers=json.arrayBuffers;var arrayBuffer=arrayBuffers[uuid];var ab=new Uint32Array(arrayBuffer).buffer;arrayBufferMap[uuid]=ab;return ab;}var geometry=json.isInstancedBufferGeometry?new InstancedBufferGeometry():new BufferGeometry();var index=json.data.index;if(index!==undefined){var typedArray=getTypedArray(index.type,index.array);geometry.setIndex(new BufferAttribute(typedArray,1));}var attributes=json.data.attributes;for(var key in attributes){var attribute=attributes[key];var bufferAttribute=void 0;if(attribute.isInterleavedBufferAttribute){var interleavedBuffer=getInterleavedBuffer(json.data,attribute.data);bufferAttribute=new InterleavedBufferAttribute(interleavedBuffer,attribute.itemSize,attribute.offset,attribute.normalized);}else {var _typedArray=getTypedArray(attribute.type,attribute.array);var bufferAttributeConstr=attribute.isInstancedBufferAttribute?InstancedBufferAttribute:BufferAttribute;bufferAttribute=new bufferAttributeConstr(_typedArray,attribute.itemSize,attribute.normalized);}if(attribute.name!==undefined)bufferAttribute.name=attribute.name;geometry.setAttribute(key,bufferAttribute);}var morphAttributes=json.data.morphAttributes;if(morphAttributes){for(var _key6 in morphAttributes){var attributeArray=morphAttributes[_key6];var array=[];for(var _i308=0,il=attributeArray.length;_i308<il;_i308++){var _attribute9=attributeArray[_i308];var _bufferAttribute=void 0;if(_attribute9.isInterleavedBufferAttribute){var _interleavedBuffer=getInterleavedBuffer(json.data,_attribute9.data);_bufferAttribute=new InterleavedBufferAttribute(_interleavedBuffer,_attribute9.itemSize,_attribute9.offset,_attribute9.normalized);}else {var _typedArray2=getTypedArray(_attribute9.type,_attribute9.array);_bufferAttribute=new BufferAttribute(_typedArray2,_attribute9.itemSize,_attribute9.normalized);}if(_attribute9.name!==undefined)_bufferAttribute.name=_attribute9.name;array.push(_bufferAttribute);}geometry.morphAttributes[_key6]=array;}}var morphTargetsRelative=json.data.morphTargetsRelative;if(morphTargetsRelative){geometry.morphTargetsRelative=true;}var groups=json.data.groups||json.data.drawcalls||json.data.offsets;if(groups!==undefined){for(var _i309=0,n=groups.length;_i309!==n;++_i309){var group=groups[_i309];geometry.addGroup(group.start,group.count,group.materialIndex);}}var boundingSphere=json.data.boundingSphere;if(boundingSphere!==undefined){var center=new Vector3();if(boundingSphere.center!==undefined){center.fromArray(boundingSphere.center);}geometry.boundingSphere=new Sphere(center,boundingSphere.radius);}if(json.name)geometry.name=json.name;if(json.userData)geometry.userData=json.userData;return geometry;}});function ImageBitmapLoader(manager){if(typeof createImageBitmap==='undefined'){console.warn('THREE.ImageBitmapLoader: createImageBitmap() not supported.');}if(typeof fetch==='undefined'){console.warn('THREE.ImageBitmapLoader: fetch() not supported.');}Loader.call(this,manager);this.options={premultiplyAlpha:'none'};}ImageBitmapLoader.prototype=Object.assign(Object.create(Loader.prototype),{constructor:ImageBitmapLoader,isImageBitmapLoader:true,setOptions:function setOptions(options){this.options=options;return this;},load:function load(url,onLoad,onProgress,onError){if(url===undefined)url='';if(this.path!==undefined)url=this.path+url;url=this.manager.resolveURL(url);var scope=this;var cached=Cache.get(url);if(cached!==undefined){scope.manager.itemStart(url);setTimeout(function(){if(onLoad)onLoad(cached);scope.manager.itemEnd(url);},0);return cached;}var fetchOptions={};fetchOptions.credentials=this.crossOrigin==='anonymous'?'same-origin':'include';fetch(url,fetchOptions).then(function(res){return res.blob();}).then(function(blob){//console.log('getBlob', url   )
return createImageBitmap(blob,scope.options);}).then(function(imageBitmap){Cache.add(url,imageBitmap);if(onLoad)onLoad(imageBitmap);scope.manager.itemEnd(url);}).catch(function(e){//console.log('error', url, e)
if(onError)onError(e,url);scope.manager.itemError(url);scope.manager.itemEnd(url);});scope.manager.itemStart(url);}});function ShapePath(){this.type='ShapePath';this.color=new Color();this.subPaths=[];this.currentPath=null;}Object.assign(ShapePath.prototype,{moveTo:function moveTo(x,y){this.currentPath=new Path();this.subPaths.push(this.currentPath);this.currentPath.moveTo(x,y);return this;},lineTo:function lineTo(x,y){this.currentPath.lineTo(x,y);return this;},quadraticCurveTo:function quadraticCurveTo(aCPx,aCPy,aX,aY){this.currentPath.quadraticCurveTo(aCPx,aCPy,aX,aY);return this;},bezierCurveTo:function bezierCurveTo(aCP1x,aCP1y,aCP2x,aCP2y,aX,aY){this.currentPath.bezierCurveTo(aCP1x,aCP1y,aCP2x,aCP2y,aX,aY);return this;},splineThru:function splineThru(pts){this.currentPath.splineThru(pts);return this;},toShapes:function toShapes(isCCW,noHoles){function toShapesNoHoles(inSubpaths){var shapes=[];for(var _i320=0,l=inSubpaths.length;_i320<l;_i320++){var _tmpPath=inSubpaths[_i320];var _tmpShape=new Shape();_tmpShape.curves=_tmpPath.curves;shapes.push(_tmpShape);}return shapes;}function isPointInsidePolygon(inPt,inPolygon){var polyLen=inPolygon.length;// inPt on polygon contour => immediate success    or
// toggling of inside/outside at every single! intersection point of an edge
//  with the horizontal line through inPt, left of inPt
//  not counting lowerY endpoints of edges and whole edges on that line
var inside=false;for(var p=polyLen-1,q=0;q<polyLen;p=q++){var edgeLowPt=inPolygon[p];var edgeHighPt=inPolygon[q];var edgeDx=edgeHighPt.x-edgeLowPt.x;var edgeDy=edgeHighPt.y-edgeLowPt.y;if(Math.abs(edgeDy)>Number.EPSILON){// not parallel
if(edgeDy<0){edgeLowPt=inPolygon[q];edgeDx=-edgeDx;edgeHighPt=inPolygon[p];edgeDy=-edgeDy;}if(inPt.y<edgeLowPt.y||inPt.y>edgeHighPt.y)continue;if(inPt.y===edgeLowPt.y){if(inPt.x===edgeLowPt.x)return true;// inPt is on contour ?
// continue;				// no intersection or edgeLowPt => doesn't count !!!
}else {var perpEdge=edgeDy*(inPt.x-edgeLowPt.x)-edgeDx*(inPt.y-edgeLowPt.y);if(perpEdge===0)return true;// inPt is on contour ?
if(perpEdge<0)continue;inside=!inside;// true intersection left of inPt
}}else {// parallel or collinear
if(inPt.y!==edgeLowPt.y)continue;// parallel
// edge lies on the same horizontal line as inPt
if(edgeHighPt.x<=inPt.x&&inPt.x<=edgeLowPt.x||edgeLowPt.x<=inPt.x&&inPt.x<=edgeHighPt.x)return true;// inPt: Point on contour !
// continue;
}}return inside;}var isClockWise=ShapeUtils.isClockWise;var subPaths=this.subPaths;if(subPaths.length===0)return [];if(noHoles===true)return toShapesNoHoles(subPaths);var solid,tmpPath,tmpShape;var shapes=[];if(subPaths.length===1){tmpPath=subPaths[0];tmpShape=new Shape();tmpShape.curves=tmpPath.curves;shapes.push(tmpShape);return shapes;}var holesFirst=!isClockWise(subPaths[0].getPoints());holesFirst=isCCW?!holesFirst:holesFirst;// console.log("Holes first", holesFirst);
var betterShapeHoles=[];var newShapes=[];var newShapeHoles=[];var mainIdx=0;var tmpPoints;newShapes[mainIdx]=undefined;newShapeHoles[mainIdx]=[];for(var _i321=0,l=subPaths.length;_i321<l;_i321++){tmpPath=subPaths[_i321];tmpPoints=tmpPath.getPoints();solid=isClockWise(tmpPoints);solid=isCCW?!solid:solid;if(solid){if(!holesFirst&&newShapes[mainIdx])mainIdx++;newShapes[mainIdx]={s:new Shape(),p:tmpPoints};newShapes[mainIdx].s.curves=tmpPath.curves;if(holesFirst)mainIdx++;newShapeHoles[mainIdx]=[];//console.log('cw', i);
}else {newShapeHoles[mainIdx].push({h:tmpPath,p:tmpPoints[0]});//console.log('ccw', i);
}}// only Holes? -> probably all Shapes with wrong orientation
if(!newShapes[0])return toShapesNoHoles(subPaths);if(newShapes.length>1){var ambiguous=false;var toChange=[];for(var sIdx=0,sLen=newShapes.length;sIdx<sLen;sIdx++){betterShapeHoles[sIdx]=[];}for(var _sIdx=0,_sLen=newShapes.length;_sIdx<_sLen;_sIdx++){var sho=newShapeHoles[_sIdx];for(var hIdx=0;hIdx<sho.length;hIdx++){var ho=sho[hIdx];var hole_unassigned=true;for(var s2Idx=0;s2Idx<newShapes.length;s2Idx++){if(isPointInsidePolygon(ho.p,newShapes[s2Idx].p)){if(_sIdx!==s2Idx)toChange.push({froms:_sIdx,tos:s2Idx,hole:hIdx});if(hole_unassigned){hole_unassigned=false;betterShapeHoles[s2Idx].push(ho);}else {ambiguous=true;}}}if(hole_unassigned){betterShapeHoles[_sIdx].push(ho);}}}// console.log("ambiguous: ", ambiguous);
if(toChange.length>0){// console.log("to change: ", toChange);
if(!ambiguous)newShapeHoles=betterShapeHoles;}}var tmpHoles;for(var _i322=0,il=newShapes.length;_i322<il;_i322++){tmpShape=newShapes[_i322].s;shapes.push(tmpShape);tmpHoles=newShapeHoles[_i322];for(var j=0,jl=tmpHoles.length;j<jl;j++){tmpShape.holes.push(tmpHoles[j].h);}}//console.log("shape", shapes);
return shapes;}});function Font(data){this.type='Font';this.data=data;}Object.assign(Font.prototype,{isFont:true,generateShapes:function generateShapes(text){var size=arguments.length>1&&arguments[1]!==undefined?arguments[1]:100;var shapes=[];var paths=createPaths(text,size,this.data);for(var p=0,pl=paths.length;p<pl;p++){Array.prototype.push.apply(shapes,paths[p].toShapes());}return shapes;}});function createPaths(text,size,data){var chars=Array.from?Array.from(text):String(text).split('');// workaround for IE11, see #13988
var scale=size/data.resolution;var line_height=(data.boundingBox.yMax-data.boundingBox.yMin+data.underlineThickness)*scale;var paths=[];var offsetX=0,offsetY=0;for(var _i323=0;_i323<chars.length;_i323++){var char=chars[_i323];if(char==='\n'){offsetX=0;offsetY-=line_height;}else {var ret=createPath(char,scale,offsetX,offsetY,data);offsetX+=ret.offsetX;paths.push(ret.path);}}return paths;}function createPath(char,scale,offsetX,offsetY,data){var glyph=data.glyphs[char]||data.glyphs['?'];if(!glyph){console.error('THREE.Font: character "'+char+'" does not exists in font family '+data.familyName+'.');return;}var path=new ShapePath();var x,y,cpx,cpy,cpx1,cpy1,cpx2,cpy2;if(glyph.o){var outline=glyph._cachedOutline||(glyph._cachedOutline=glyph.o.split(' '));for(var _i324=0,l=outline.length;_i324<l;){var action=outline[_i324++];switch(action){case'm':// moveTo
x=outline[_i324++]*scale+offsetX;y=outline[_i324++]*scale+offsetY;path.moveTo(x,y);break;case'l':// lineTo
x=outline[_i324++]*scale+offsetX;y=outline[_i324++]*scale+offsetY;path.lineTo(x,y);break;case'q':// quadraticCurveTo
cpx=outline[_i324++]*scale+offsetX;cpy=outline[_i324++]*scale+offsetY;cpx1=outline[_i324++]*scale+offsetX;cpy1=outline[_i324++]*scale+offsetY;path.quadraticCurveTo(cpx1,cpy1,cpx,cpy);break;case'b':// bezierCurveTo
cpx=outline[_i324++]*scale+offsetX;cpy=outline[_i324++]*scale+offsetY;cpx1=outline[_i324++]*scale+offsetX;cpy1=outline[_i324++]*scale+offsetY;cpx2=outline[_i324++]*scale+offsetX;cpy2=outline[_i324++]*scale+offsetY;path.bezierCurveTo(cpx1,cpy1,cpx2,cpy2,cpx,cpy);break;}}}return {offsetX:glyph.ha*scale,path:path};}function FontLoader(manager){Loader.call(this,manager);}FontLoader.prototype=Object.assign(Object.create(Loader.prototype),{constructor:FontLoader,load:function load(url,onLoad,onProgress,onError){var scope=this;var loader=new FileLoader(this.manager);loader.setPath(this.path);loader.setRequestHeader(this.requestHeader);loader.setWithCredentials(scope.withCredentials);loader.load(url,function(text){var json;try{json=JSON.parse(text);}catch(e){console.warn('THREE.FontLoader: typeface.js support is being deprecated. Use typeface.json instead.');json=JSON.parse(text.substring(65,text.length-2));}var font=scope.parse(json);if(onLoad)onLoad(font);},onProgress,onError);},parse:function parse(json){return new Font(json);}});var _context;var AudioContext={getContext:function getContext(){if(_context===undefined){_context=new(window.AudioContext||window.webkitAudioContext)();}return _context;},setContext:function setContext(value){_context=value;}};function AudioLoader(manager){Loader.call(this,manager);}AudioLoader.prototype=Object.assign(Object.create(Loader.prototype),{constructor:AudioLoader,load:function load(url,onLoad,onProgress,onError){var scope=this;var loader=new FileLoader(scope.manager);loader.setResponseType('arraybuffer');loader.setPath(scope.path);loader.setRequestHeader(scope.requestHeader);loader.setWithCredentials(scope.withCredentials);loader.load(url,function(buffer){try{// Create a copy of the buffer. The `decodeAudioData` method
// detaches the buffer when complete, preventing reuse.
var bufferCopy=buffer.slice(0);var context=AudioContext.getContext();context.decodeAudioData(bufferCopy,function(audioBuffer){onLoad(audioBuffer);});}catch(e){if(onError){onError(e);}else {console.error(e);}scope.manager.itemError(url);}},onProgress,onError);}});function HemisphereLightProbe(skyColor,groundColor,intensity){LightProbe.call(this,undefined,intensity);var color1=new Color().set(skyColor);var color2=new Color().set(groundColor);var sky=new Vector3(color1.r,color1.g,color1.b);var ground=new Vector3(color2.r,color2.g,color2.b);// without extra factor of PI in the shader, should = 1 / Math.sqrt( Math.PI );
var c0=Math.sqrt(Math.PI);var c1=c0*Math.sqrt(0.75);this.sh.coefficients[0].copy(sky).add(ground).multiplyScalar(c0);this.sh.coefficients[1].copy(sky).sub(ground).multiplyScalar(c1);}HemisphereLightProbe.prototype=Object.assign(Object.create(LightProbe.prototype),{constructor:HemisphereLightProbe,isHemisphereLightProbe:true,copy:function copy(source){// modifying colors not currently supported
LightProbe.prototype.copy.call(this,source);return this;},toJSON:function toJSON(meta){var data=LightProbe.prototype.toJSON.call(this,meta);// data.sh = this.sh.toArray(); // todo
return data;}});function AmbientLightProbe(color,intensity){LightProbe.call(this,undefined,intensity);var color1=new Color().set(color);// without extra factor of PI in the shader, would be 2 / Math.sqrt( Math.PI );
this.sh.coefficients[0].set(color1.r,color1.g,color1.b).multiplyScalar(2*Math.sqrt(Math.PI));}AmbientLightProbe.prototype=Object.assign(Object.create(LightProbe.prototype),{constructor:AmbientLightProbe,isAmbientLightProbe:true,copy:function copy(source){// modifying color not currently supported
LightProbe.prototype.copy.call(this,source);return this;},toJSON:function toJSON(meta){var data=LightProbe.prototype.toJSON.call(this,meta);// data.sh = this.sh.toArray(); // todo
return data;}});var _eyeRight=new Matrix4();var _eyeLeft=new Matrix4();function StereoCamera(){this.type='StereoCamera';this.aspect=1;this.eyeSep=0.064;this.cameraL=new PerspectiveCamera();this.cameraL.layers.enable(1);this.cameraL.matrixAutoUpdate=false;this.cameraR=new PerspectiveCamera();this.cameraR.layers.enable(2);this.cameraR.matrixAutoUpdate=false;this._cache={focus:null,fov:null,aspect:null,near:null,far:null,zoom:null,eyeSep:null};}Object.assign(StereoCamera.prototype,{update:function update(camera){var cache=this._cache;var needsUpdate=cache.focus!==camera.focus||cache.fov!==camera.fov||cache.aspect!==camera.aspect*this.aspect||cache.near!==camera.near||cache.far!==camera.far||cache.zoom!==camera.zoom||cache.eyeSep!==this.eyeSep;if(needsUpdate){cache.focus=camera.focus;cache.fov=camera.fov;cache.aspect=camera.aspect*this.aspect;cache.near=camera.near;cache.far=camera.far;cache.zoom=camera.zoom;cache.eyeSep=this.eyeSep;// Off-axis stereoscopic effect based on
// http://paulbourke.net/stereographics/stereorender/
var projectionMatrix=camera.projectionMatrix.clone();var eyeSepHalf=cache.eyeSep/2;var eyeSepOnProjection=eyeSepHalf*cache.near/cache.focus;var ymax=cache.near*Math.tan(MathUtils.DEG2RAD*cache.fov*0.5)/cache.zoom;var xmin,xmax;// translate xOffset
_eyeLeft.elements[12]=-eyeSepHalf;_eyeRight.elements[12]=eyeSepHalf;// for left eye
xmin=-ymax*cache.aspect+eyeSepOnProjection;xmax=ymax*cache.aspect+eyeSepOnProjection;projectionMatrix.elements[0]=2*cache.near/(xmax-xmin);projectionMatrix.elements[8]=(xmax+xmin)/(xmax-xmin);this.cameraL.projectionMatrix.copy(projectionMatrix);// for right eye
xmin=-ymax*cache.aspect-eyeSepOnProjection;xmax=ymax*cache.aspect-eyeSepOnProjection;projectionMatrix.elements[0]=2*cache.near/(xmax-xmin);projectionMatrix.elements[8]=(xmax+xmin)/(xmax-xmin);this.cameraR.projectionMatrix.copy(projectionMatrix);}this.cameraL.matrixWorld.copy(camera.matrixWorld).multiply(_eyeLeft);this.cameraR.matrixWorld.copy(camera.matrixWorld).multiply(_eyeRight);}});class Audio extends Object3D{constructor(listener){super();this.type='Audio';this.listener=listener;this.context=listener.context;this.gain=this.context.createGain();this.gain.connect(listener.getInput());this.autoplay=false;this.buffer=null;this.detune=0;this.loop=false;this.loopStart=0;this.loopEnd=0;this.offset=0;this.duration=undefined;this.playbackRate=1;this.isPlaying=false;this.hasPlaybackControl=true;this.source=null;this.sourceType='empty';this._startedAt=0;this._progress=0;this._connected=false;this.filters=[];}getOutput(){return this.gain;}setNodeSource(audioNode){this.hasPlaybackControl=false;this.sourceType='audioNode';this.source=audioNode;this.connect();return this;}setMediaElementSource(mediaElement){this.hasPlaybackControl=false;this.sourceType='mediaNode';this.source=this.context.createMediaElementSource(mediaElement);this.connect();return this;}setMediaStreamSource(mediaStream){this.hasPlaybackControl=false;this.sourceType='mediaStreamNode';this.source=this.context.createMediaStreamSource(mediaStream);this.connect();return this;}setBuffer(audioBuffer){this.buffer=audioBuffer;this.sourceType='buffer';if(this.autoplay)this.play();return this;}play(){var delay=arguments.length>0&&arguments[0]!==undefined?arguments[0]:0;if(this.isPlaying===true){console.warn('THREE.Audio: Audio is already playing.');return;}if(this.hasPlaybackControl===false){console.warn('THREE.Audio: this Audio has no playback control.');return;}this._startedAt=this.context.currentTime+delay;var source=this.context.createBufferSource();source.buffer=this.buffer;source.loop=this.loop;source.loopStart=this.loopStart;source.loopEnd=this.loopEnd;source.onended=this.onEnded.bind(this);source.start(this._startedAt,this._progress+this.offset,this.duration);this.isPlaying=true;this.source=source;this.setDetune(this.detune);this.setPlaybackRate(this.playbackRate);return this.connect();}pause(){if(this.hasPlaybackControl===false){console.warn('THREE.Audio: this Audio has no playback control.');return;}if(this.isPlaying===true){// update current progress
this._progress+=Math.max(this.context.currentTime-this._startedAt,0)*this.playbackRate;if(this.loop===true){// ensure _progress does not exceed duration with looped audios
this._progress=this._progress%(this.duration||this.buffer.duration);}this.source.stop();this.source.onended=null;this.isPlaying=false;}return this;}stop(){if(this.hasPlaybackControl===false){console.warn('THREE.Audio: this Audio has no playback control.');return;}this._progress=0;this.source.stop();this.source.onended=null;this.isPlaying=false;return this;}connect(){if(this.filters.length>0){this.source.connect(this.filters[0]);for(var _i325=1,l=this.filters.length;_i325<l;_i325++){this.filters[_i325-1].connect(this.filters[_i325]);}this.filters[this.filters.length-1].connect(this.getOutput());}else {this.source.connect(this.getOutput());}this._connected=true;return this;}disconnect(){if(this.filters.length>0){this.source.disconnect(this.filters[0]);for(var _i326=1,l=this.filters.length;_i326<l;_i326++){this.filters[_i326-1].disconnect(this.filters[_i326]);}this.filters[this.filters.length-1].disconnect(this.getOutput());}else {this.source.disconnect(this.getOutput());}this._connected=false;return this;}getFilters(){return this.filters;}setFilters(value){if(!value)value=[];if(this._connected===true){this.disconnect();this.filters=value.slice();this.connect();}else {this.filters=value.slice();}return this;}setDetune(value){this.detune=value;if(this.source.detune===undefined)return;// only set detune when available
if(this.isPlaying===true){this.source.detune.setTargetAtTime(this.detune,this.context.currentTime,0.01);}return this;}getDetune(){return this.detune;}getFilter(){return this.getFilters()[0];}setFilter(filter){return this.setFilters(filter?[filter]:[]);}setPlaybackRate(value){if(this.hasPlaybackControl===false){console.warn('THREE.Audio: this Audio has no playback control.');return;}this.playbackRate=value;if(this.isPlaying===true){this.source.playbackRate.setTargetAtTime(this.playbackRate,this.context.currentTime,0.01);}return this;}getPlaybackRate(){return this.playbackRate;}onEnded(){this.isPlaying=false;}getLoop(){if(this.hasPlaybackControl===false){console.warn('THREE.Audio: this Audio has no playback control.');return false;}return this.loop;}setLoop(value){if(this.hasPlaybackControl===false){console.warn('THREE.Audio: this Audio has no playback control.');return;}this.loop=value;if(this.isPlaying===true){this.source.loop=this.loop;}return this;}setLoopStart(value){this.loopStart=value;return this;}setLoopEnd(value){this.loopEnd=value;return this;}getVolume(){return this.gain.gain.value;}setVolume(value){this.gain.gain.setTargetAtTime(value,this.context.currentTime,0.01);return this;}}class AudioAnalyser{constructor(audio){var fftSize=arguments.length>1&&arguments[1]!==undefined?arguments[1]:2048;this.analyser=audio.context.createAnalyser();this.analyser.fftSize=fftSize;this.data=new Uint8Array(this.analyser.frequencyBinCount);audio.getOutput().connect(this.analyser);}getFrequencyData(){this.analyser.getByteFrequencyData(this.data);return this.data;}getAverageFrequency(){var value=0;var data=this.getFrequencyData();for(var _i327=0;_i327<data.length;_i327++){value+=data[_i327];}return value/data.length;}}function PropertyMixer(binding,typeName,valueSize){this.binding=binding;this.valueSize=valueSize;var mixFunction,mixFunctionAdditive,setIdentity;// buffer layout: [ incoming | accu0 | accu1 | orig | addAccu | (optional work) ]
//
// interpolators can use .buffer as their .result
// the data then goes to 'incoming'
//
// 'accu0' and 'accu1' are used frame-interleaved for
// the cumulative result and are compared to detect
// changes
//
// 'orig' stores the original state of the property
//
// 'add' is used for additive cumulative results
//
// 'work' is optional and is only present for quaternion types. It is used
// to store intermediate quaternion multiplication results
switch(typeName){case'quaternion':mixFunction=this._slerp;mixFunctionAdditive=this._slerpAdditive;setIdentity=this._setAdditiveIdentityQuaternion;this.buffer=new Float64Array(valueSize*6);this._workIndex=5;break;case'string':case'bool':mixFunction=this._select;// Use the regular mix function and for additive on these types,
// additive is not relevant for non-numeric types
mixFunctionAdditive=this._select;setIdentity=this._setAdditiveIdentityOther;this.buffer=new Array(valueSize*5);break;default:mixFunction=this._lerp;mixFunctionAdditive=this._lerpAdditive;setIdentity=this._setAdditiveIdentityNumeric;this.buffer=new Float64Array(valueSize*5);}this._mixBufferRegion=mixFunction;this._mixBufferRegionAdditive=mixFunctionAdditive;this._setIdentity=setIdentity;this._origIndex=3;this._addIndex=4;this.cumulativeWeight=0;this.cumulativeWeightAdditive=0;this.useCount=0;this.referenceCount=0;}Object.assign(PropertyMixer.prototype,{// accumulate data in the 'incoming' region into 'accu<i>'
accumulate:function accumulate(accuIndex,weight){// note: happily accumulating nothing when weight = 0, the caller knows
// the weight and shouldn't have made the call in the first place
var buffer=this.buffer,stride=this.valueSize,offset=accuIndex*stride+stride;var currentWeight=this.cumulativeWeight;if(currentWeight===0){// accuN := incoming * weight
for(var _i328=0;_i328!==stride;++_i328){buffer[offset+_i328]=buffer[_i328];}currentWeight=weight;}else {// accuN := accuN + incoming * weight
currentWeight+=weight;var mix=weight/currentWeight;this._mixBufferRegion(buffer,offset,0,mix,stride);}this.cumulativeWeight=currentWeight;},// accumulate data in the 'incoming' region into 'add'
accumulateAdditive:function accumulateAdditive(weight){var buffer=this.buffer,stride=this.valueSize,offset=stride*this._addIndex;if(this.cumulativeWeightAdditive===0){// add = identity
this._setIdentity();}// add := add + incoming * weight
this._mixBufferRegionAdditive(buffer,offset,0,weight,stride);this.cumulativeWeightAdditive+=weight;},// apply the state of 'accu<i>' to the binding when accus differ
apply:function apply(accuIndex){var stride=this.valueSize,buffer=this.buffer,offset=accuIndex*stride+stride,weight=this.cumulativeWeight,weightAdditive=this.cumulativeWeightAdditive,binding=this.binding;this.cumulativeWeight=0;this.cumulativeWeightAdditive=0;if(weight<1){// accuN := accuN + original * ( 1 - cumulativeWeight )
var originalValueOffset=stride*this._origIndex;this._mixBufferRegion(buffer,offset,originalValueOffset,1-weight,stride);}if(weightAdditive>0){// accuN := accuN + additive accuN
this._mixBufferRegionAdditive(buffer,offset,this._addIndex*stride,1,stride);}for(var _i329=stride,e=stride+stride;_i329!==e;++_i329){if(buffer[_i329]!==buffer[_i329+stride]){// value has changed -> update scene graph
binding.setValue(buffer,offset);break;}}},// remember the state of the bound property and copy it to both accus
saveOriginalState:function saveOriginalState(){var binding=this.binding;var buffer=this.buffer,stride=this.valueSize,originalValueOffset=stride*this._origIndex;binding.getValue(buffer,originalValueOffset);// accu[0..1] := orig -- initially detect changes against the original
for(var _i330=stride,e=originalValueOffset;_i330!==e;++_i330){buffer[_i330]=buffer[originalValueOffset+_i330%stride];}// Add to identity for additive
this._setIdentity();this.cumulativeWeight=0;this.cumulativeWeightAdditive=0;},// apply the state previously taken via 'saveOriginalState' to the binding
restoreOriginalState:function restoreOriginalState(){var originalValueOffset=this.valueSize*3;this.binding.setValue(this.buffer,originalValueOffset);},_setAdditiveIdentityNumeric:function _setAdditiveIdentityNumeric(){var startIndex=this._addIndex*this.valueSize;var endIndex=startIndex+this.valueSize;for(var _i331=startIndex;_i331<endIndex;_i331++){this.buffer[_i331]=0;}},_setAdditiveIdentityQuaternion:function _setAdditiveIdentityQuaternion(){this._setAdditiveIdentityNumeric();this.buffer[this._addIndex*this.valueSize+3]=1;},_setAdditiveIdentityOther:function _setAdditiveIdentityOther(){var startIndex=this._origIndex*this.valueSize;var targetIndex=this._addIndex*this.valueSize;for(var _i332=0;_i332<this.valueSize;_i332++){this.buffer[targetIndex+_i332]=this.buffer[startIndex+_i332];}},// mix functions
_select:function _select(buffer,dstOffset,srcOffset,t,stride){if(t>=0.5){for(var _i333=0;_i333!==stride;++_i333){buffer[dstOffset+_i333]=buffer[srcOffset+_i333];}}},_slerp:function _slerp(buffer,dstOffset,srcOffset,t){Quaternion.slerpFlat(buffer,dstOffset,buffer,dstOffset,buffer,srcOffset,t);},_slerpAdditive:function _slerpAdditive(buffer,dstOffset,srcOffset,t,stride){var workOffset=this._workIndex*stride;// Store result in intermediate buffer offset
Quaternion.multiplyQuaternionsFlat(buffer,workOffset,buffer,dstOffset,buffer,srcOffset);// Slerp to the intermediate result
Quaternion.slerpFlat(buffer,dstOffset,buffer,dstOffset,buffer,workOffset,t);},_lerp:function _lerp(buffer,dstOffset,srcOffset,t,stride){var s=1-t;for(var _i334=0;_i334!==stride;++_i334){var j=dstOffset+_i334;buffer[j]=buffer[j]*s+buffer[srcOffset+_i334]*t;}},_lerpAdditive:function _lerpAdditive(buffer,dstOffset,srcOffset,t,stride){for(var _i335=0;_i335!==stride;++_i335){var j=dstOffset+_i335;buffer[j]=buffer[j]+buffer[srcOffset+_i335]*t;}}});// Characters [].:/ are reserved for track binding syntax.
var _RESERVED_CHARS_RE='\\[\\]\\.:\\/';var _reservedRe=new RegExp('['+_RESERVED_CHARS_RE+']','g');// Attempts to allow node names from any language. ES5's `\w` regexp matches
// only latin characters, and the unicode \p{L} is not yet supported. So
// instead, we exclude reserved characters and match everything else.
var _wordChar='[^'+_RESERVED_CHARS_RE+']';var _wordCharOrDot='[^'+_RESERVED_CHARS_RE.replace('\\.','')+']';// Parent directories, delimited by '/' or ':'. Currently unused, but must
// be matched to parse the rest of the track name.
var _directoryRe=/((?:WC+[\/:])*)/.source.replace('WC',_wordChar);// Target node. May contain word characters (a-zA-Z0-9_) and '.' or '-'.
var _nodeRe=/(WCOD+)?/.source.replace('WCOD',_wordCharOrDot);// Object on target node, and accessor. May not contain reserved
// characters. Accessor may contain any character except closing bracket.
var _objectRe=/(?:\.(WC+)(?:\[(.+)\])?)?/.source.replace('WC',_wordChar);// Property and accessor. May not contain reserved characters. Accessor may
// contain any non-bracket characters.
var _propertyRe=/\.(WC+)(?:\[(.+)\])?/.source.replace('WC',_wordChar);var _trackRe=new RegExp(''+'^'+_directoryRe+_nodeRe+_objectRe+_propertyRe+'$');var _supportedObjectNames=['material','materials','bones'];function Composite(targetGroup,path,optionalParsedPath){var parsedPath=optionalParsedPath||PropertyBinding.parseTrackName(path);this._targetGroup=targetGroup;this._bindings=targetGroup.subscribe_(path,parsedPath);}Object.assign(Composite.prototype,{getValue:function getValue(array,offset){this.bind();// bind all binding
var firstValidIndex=this._targetGroup.nCachedObjects_,binding=this._bindings[firstValidIndex];// and only call .getValue on the first
if(binding!==undefined)binding.getValue(array,offset);},setValue:function setValue(array,offset){var bindings=this._bindings;for(var _i336=this._targetGroup.nCachedObjects_,n=bindings.length;_i336!==n;++_i336){bindings[_i336].setValue(array,offset);}},bind:function bind(){var bindings=this._bindings;for(var _i337=this._targetGroup.nCachedObjects_,n=bindings.length;_i337!==n;++_i337){bindings[_i337].bind();}},unbind:function unbind(){var bindings=this._bindings;for(var _i338=this._targetGroup.nCachedObjects_,n=bindings.length;_i338!==n;++_i338){bindings[_i338].unbind();}}});function PropertyBinding(rootNode,path,parsedPath){this.path=path;this.parsedPath=parsedPath||PropertyBinding.parseTrackName(path);this.node=PropertyBinding.findNode(rootNode,this.parsedPath.nodeName)||rootNode;this.rootNode=rootNode;}Object.assign(PropertyBinding,{Composite:Composite,create:function create(root,path,parsedPath){if(!(root&&root.isAnimationObjectGroup)){return new PropertyBinding(root,path,parsedPath);}else {return new PropertyBinding.Composite(root,path,parsedPath);}},/**
	 * Replaces spaces with underscores and removes unsupported characters from
	 * node names, to ensure compatibility with parseTrackName().
	 *
	 * @param {string} name Node name to be sanitized.
	 * @return {string}
	 */sanitizeNodeName:function sanitizeNodeName(name){return name.replace(/\s/g,'_').replace(_reservedRe,'');},parseTrackName:function parseTrackName(trackName){var matches=_trackRe.exec(trackName);if(!matches){throw new Error('PropertyBinding: Cannot parse trackName: '+trackName);}var results={// directoryName: matches[ 1 ], // (tschw) currently unused
nodeName:matches[2],objectName:matches[3],objectIndex:matches[4],propertyName:matches[5],// required
propertyIndex:matches[6]};var lastDot=results.nodeName&&results.nodeName.lastIndexOf('.');if(lastDot!==undefined&&lastDot!==-1){var objectName=results.nodeName.substring(lastDot+1);// Object names must be checked against an allowlist. Otherwise, there
// is no way to parse 'foo.bar.baz': 'baz' must be a property, but
// 'bar' could be the objectName, or part of a nodeName (which can
// include '.' characters).
if(_supportedObjectNames.indexOf(objectName)!==-1){results.nodeName=results.nodeName.substring(0,lastDot);results.objectName=objectName;}}if(results.propertyName===null||results.propertyName.length===0){throw new Error('PropertyBinding: can not parse propertyName from trackName: '+trackName);}return results;},findNode:function findNode(root,nodeName){if(!nodeName||nodeName===''||nodeName==='.'||nodeName===-1||nodeName===root.name||nodeName===root.uuid){return root;}// search into skeleton bones.
if(root.skeleton){var bone=root.skeleton.getBoneByName(nodeName);if(bone!==undefined){return bone;}}// search into node subtree.
if(root.children){var _searchNodeSubtree=function searchNodeSubtree(children){for(var _i339=0;_i339<children.length;_i339++){var childNode=children[_i339];if(childNode.name===nodeName||childNode.uuid===nodeName){return childNode;}var result=_searchNodeSubtree(childNode.children);if(result)return result;}return null;};var subTreeNode=_searchNodeSubtree(root.children);if(subTreeNode){return subTreeNode;}}return null;}});Object.assign(PropertyBinding.prototype,{// prototype, continued
// these are used to "bind" a nonexistent property
_getValue_unavailable:function _getValue_unavailable(){},_setValue_unavailable:function _setValue_unavailable(){},BindingType:{Direct:0,EntireArray:1,ArrayElement:2,HasFromToArray:3},Versioning:{None:0,NeedsUpdate:1,MatrixWorldNeedsUpdate:2},GetterByBindingType:[function getValue_direct(buffer,offset){buffer[offset]=this.node[this.propertyName];},function getValue_array(buffer,offset){var source=this.resolvedProperty;for(var _i340=0,n=source.length;_i340!==n;++_i340){buffer[offset++]=source[_i340];}},function getValue_arrayElement(buffer,offset){buffer[offset]=this.resolvedProperty[this.propertyIndex];},function getValue_toArray(buffer,offset){this.resolvedProperty.toArray(buffer,offset);}],SetterByBindingTypeAndVersioning:[[// Direct
function setValue_direct(buffer,offset){this.targetObject[this.propertyName]=buffer[offset];},function setValue_direct_setNeedsUpdate(buffer,offset){this.targetObject[this.propertyName]=buffer[offset];this.targetObject.needsUpdate=true;},function setValue_direct_setMatrixWorldNeedsUpdate(buffer,offset){this.targetObject[this.propertyName]=buffer[offset];this.targetObject.matrixWorldNeedsUpdate=true;}],[// EntireArray
function setValue_array(buffer,offset){var dest=this.resolvedProperty;for(var _i341=0,n=dest.length;_i341!==n;++_i341){dest[_i341]=buffer[offset++];}},function setValue_array_setNeedsUpdate(buffer,offset){var dest=this.resolvedProperty;for(var _i342=0,n=dest.length;_i342!==n;++_i342){dest[_i342]=buffer[offset++];}this.targetObject.needsUpdate=true;},function setValue_array_setMatrixWorldNeedsUpdate(buffer,offset){var dest=this.resolvedProperty;for(var _i343=0,n=dest.length;_i343!==n;++_i343){dest[_i343]=buffer[offset++];}this.targetObject.matrixWorldNeedsUpdate=true;}],[// ArrayElement
function setValue_arrayElement(buffer,offset){this.resolvedProperty[this.propertyIndex]=buffer[offset];},function setValue_arrayElement_setNeedsUpdate(buffer,offset){this.resolvedProperty[this.propertyIndex]=buffer[offset];this.targetObject.needsUpdate=true;},function setValue_arrayElement_setMatrixWorldNeedsUpdate(buffer,offset){this.resolvedProperty[this.propertyIndex]=buffer[offset];this.targetObject.matrixWorldNeedsUpdate=true;}],[// HasToFromArray
function setValue_fromArray(buffer,offset){this.resolvedProperty.fromArray(buffer,offset);},function setValue_fromArray_setNeedsUpdate(buffer,offset){this.resolvedProperty.fromArray(buffer,offset);this.targetObject.needsUpdate=true;},function setValue_fromArray_setMatrixWorldNeedsUpdate(buffer,offset){this.resolvedProperty.fromArray(buffer,offset);this.targetObject.matrixWorldNeedsUpdate=true;}]],getValue:function getValue_unbound(targetArray,offset){this.bind();this.getValue(targetArray,offset);// Note: This class uses a State pattern on a per-method basis:
// 'bind' sets 'this.getValue' / 'setValue' and shadows the
// prototype version of these methods with one that represents
// the bound state. When the property is not found, the methods
// become no-ops.
},setValue:function getValue_unbound(sourceArray,offset){this.bind();this.setValue(sourceArray,offset);},// create getter / setter pair for a property in the scene graph
bind:function bind(){var targetObject=this.node;var parsedPath=this.parsedPath;var objectName=parsedPath.objectName;var propertyName=parsedPath.propertyName;var propertyIndex=parsedPath.propertyIndex;if(!targetObject){targetObject=PropertyBinding.findNode(this.rootNode,parsedPath.nodeName)||this.rootNode;this.node=targetObject;}// set fail state so we can just 'return' on error
this.getValue=this._getValue_unavailable;this.setValue=this._setValue_unavailable;// ensure there is a value node
if(!targetObject){console.error('THREE.PropertyBinding: Trying to update node for track: '+this.path+' but it wasn\'t found.');return;}if(objectName){var objectIndex=parsedPath.objectIndex;// special cases were we need to reach deeper into the hierarchy to get the face materials....
switch(objectName){case'materials':if(!targetObject.material){console.error('THREE.PropertyBinding: Can not bind to material as node does not have a material.',this);return;}if(!targetObject.material.materials){console.error('THREE.PropertyBinding: Can not bind to material.materials as node.material does not have a materials array.',this);return;}targetObject=targetObject.material.materials;break;case'bones':if(!targetObject.skeleton){console.error('THREE.PropertyBinding: Can not bind to bones as node does not have a skeleton.',this);return;}// potential future optimization: skip this if propertyIndex is already an integer
// and convert the integer string to a true integer.
targetObject=targetObject.skeleton.bones;// support resolving morphTarget names into indices.
for(var _i344=0;_i344<targetObject.length;_i344++){if(targetObject[_i344].name===objectIndex){objectIndex=_i344;break;}}break;default:if(targetObject[objectName]===undefined){console.error('THREE.PropertyBinding: Can not bind to objectName of node undefined.',this);return;}targetObject=targetObject[objectName];}if(objectIndex!==undefined){if(targetObject[objectIndex]===undefined){console.error('THREE.PropertyBinding: Trying to bind to objectIndex of objectName, but is undefined.',this,targetObject);return;}targetObject=targetObject[objectIndex];}}// resolve property
var nodeProperty=targetObject[propertyName];if(nodeProperty===undefined){var nodeName=parsedPath.nodeName;console.error('THREE.PropertyBinding: Trying to update property for track: '+nodeName+'.'+propertyName+' but it wasn\'t found.',targetObject);return;}// determine versioning scheme
var versioning=this.Versioning.None;this.targetObject=targetObject;if(targetObject.needsUpdate!==undefined){// material
versioning=this.Versioning.NeedsUpdate;}else if(targetObject.matrixWorldNeedsUpdate!==undefined){// node transform
versioning=this.Versioning.MatrixWorldNeedsUpdate;}// determine how the property gets bound
var bindingType=this.BindingType.Direct;if(propertyIndex!==undefined){// access a sub element of the property array (only primitives are supported right now)
if(propertyName==='morphTargetInfluences'){// potential optimization, skip this if propertyIndex is already an integer, and convert the integer string to a true integer.
// support resolving morphTarget names into indices.
if(!targetObject.geometry){console.error('THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.',this);return;}if(targetObject.geometry.isBufferGeometry){if(!targetObject.geometry.morphAttributes){console.error('THREE.PropertyBinding: Can not bind to morphTargetInfluences because node does not have a geometry.morphAttributes.',this);return;}if(targetObject.morphTargetDictionary[propertyIndex]!==undefined){propertyIndex=targetObject.morphTargetDictionary[propertyIndex];}}else {console.error('THREE.PropertyBinding: Can not bind to morphTargetInfluences on THREE.Geometry. Use THREE.BufferGeometry instead.',this);return;}}bindingType=this.BindingType.ArrayElement;this.resolvedProperty=nodeProperty;this.propertyIndex=propertyIndex;}else if(nodeProperty.fromArray!==undefined&&nodeProperty.toArray!==undefined){// must use copy for Object3D.Euler/Quaternion
bindingType=this.BindingType.HasFromToArray;this.resolvedProperty=nodeProperty;}else if(Array.isArray(nodeProperty)){bindingType=this.BindingType.EntireArray;this.resolvedProperty=nodeProperty;}else {this.propertyName=propertyName;}// select getter / setter
this.getValue=this.GetterByBindingType[bindingType];this.setValue=this.SetterByBindingTypeAndVersioning[bindingType][versioning];},unbind:function unbind(){this.node=null;// back to the prototype version of getValue / setValue
// note: avoiding to mutate the shape of 'this' via 'delete'
this.getValue=this._getValue_unbound;this.setValue=this._setValue_unbound;}});// DECLARE ALIAS AFTER assign prototype
Object.assign(PropertyBinding.prototype,{// initial state of these methods that calls 'bind'
_getValue_unbound:PropertyBinding.prototype.getValue,_setValue_unbound:PropertyBinding.prototype.setValue});/**
 *
 * A group of objects that receives a shared animation state.
 *
 * Usage:
 *
 *  - Add objects you would otherwise pass as 'root' to the
 *    constructor or the .clipAction method of AnimationMixer.
 *
 *  - Instead pass this object as 'root'.
 *
 *  - You can also add and remove objects later when the mixer
 *    is running.
 *
 * Note:
 *
 *    Objects of this class appear as one object to the mixer,
 *    so cache control of the individual objects must be done
 *    on the group.
 *
 * Limitation:
 *
 *  - The animated properties must be compatible among the
 *    all objects in the group.
 *
 *  - A single property can either be controlled through a
 *    target group or directly, but not both.
 */function AnimationObjectGroup(){this.uuid=MathUtils.generateUUID();// cached objects followed by the active ones
this._objects=Array.prototype.slice.call(arguments);this.nCachedObjects_=0;// threshold
// note: read by PropertyBinding.Composite
var indices={};this._indicesByUUID=indices;// for bookkeeping
for(var _i345=0,n=arguments.length;_i345!==n;++_i345){indices[arguments[_i345].uuid]=_i345;}this._paths=[];// inside: string
this._parsedPaths=[];// inside: { we don't care, here }
this._bindings=[];// inside: Array< PropertyBinding >
this._bindingsIndicesByPath={};// inside: indices in these arrays
var scope=this;this.stats={objects:{get total(){return scope._objects.length;},get inUse(){return this.total-scope.nCachedObjects_;}},get bindingsPerObject(){return scope._bindings.length;}};}Object.assign(AnimationObjectGroup.prototype,{isAnimationObjectGroup:true,add:function add(){var objects=this._objects,indicesByUUID=this._indicesByUUID,paths=this._paths,parsedPaths=this._parsedPaths,bindings=this._bindings,nBindings=bindings.length;var knownObject=undefined,nObjects=objects.length,nCachedObjects=this.nCachedObjects_;for(var _i346=0,n=arguments.length;_i346!==n;++_i346){var object=arguments[_i346],uuid=object.uuid;var index=indicesByUUID[uuid];if(index===undefined){// unknown object -> add it to the ACTIVE region
index=nObjects++;indicesByUUID[uuid]=index;objects.push(object);// accounting is done, now do the same for all bindings
for(var j=0,m=nBindings;j!==m;++j){bindings[j].push(new PropertyBinding(object,paths[j],parsedPaths[j]));}}else if(index<nCachedObjects){knownObject=objects[index];// move existing object to the ACTIVE region
var firstActiveIndex=--nCachedObjects,lastCachedObject=objects[firstActiveIndex];indicesByUUID[lastCachedObject.uuid]=index;objects[index]=lastCachedObject;indicesByUUID[uuid]=firstActiveIndex;objects[firstActiveIndex]=object;// accounting is done, now do the same for all bindings
for(var _j25=0,_m2=nBindings;_j25!==_m2;++_j25){var bindingsForPath=bindings[_j25],lastCached=bindingsForPath[firstActiveIndex];var binding=bindingsForPath[index];bindingsForPath[index]=lastCached;if(binding===undefined){// since we do not bother to create new bindings
// for objects that are cached, the binding may
// or may not exist
binding=new PropertyBinding(object,paths[_j25],parsedPaths[_j25]);}bindingsForPath[firstActiveIndex]=binding;}}else if(objects[index]!==knownObject){console.error('THREE.AnimationObjectGroup: Different objects with the same UUID '+'detected. Clean the caches or recreate your infrastructure when reloading scenes.');}// else the object is already where we want it to be
}// for arguments
this.nCachedObjects_=nCachedObjects;},remove:function remove(){var objects=this._objects,indicesByUUID=this._indicesByUUID,bindings=this._bindings,nBindings=bindings.length;var nCachedObjects=this.nCachedObjects_;for(var _i347=0,n=arguments.length;_i347!==n;++_i347){var object=arguments[_i347],uuid=object.uuid,index=indicesByUUID[uuid];if(index!==undefined&&index>=nCachedObjects){// move existing object into the CACHED region
var lastCachedIndex=nCachedObjects++,firstActiveObject=objects[lastCachedIndex];indicesByUUID[firstActiveObject.uuid]=index;objects[index]=firstActiveObject;indicesByUUID[uuid]=lastCachedIndex;objects[lastCachedIndex]=object;// accounting is done, now do the same for all bindings
for(var j=0,m=nBindings;j!==m;++j){var bindingsForPath=bindings[j],firstActive=bindingsForPath[lastCachedIndex],binding=bindingsForPath[index];bindingsForPath[index]=firstActive;bindingsForPath[lastCachedIndex]=binding;}}}// for arguments
this.nCachedObjects_=nCachedObjects;},// remove & forget
uncache:function uncache(){var objects=this._objects,indicesByUUID=this._indicesByUUID,bindings=this._bindings,nBindings=bindings.length;var nCachedObjects=this.nCachedObjects_,nObjects=objects.length;for(var _i348=0,n=arguments.length;_i348!==n;++_i348){var object=arguments[_i348],uuid=object.uuid,index=indicesByUUID[uuid];if(index!==undefined){delete indicesByUUID[uuid];if(index<nCachedObjects){// object is cached, shrink the CACHED region
var firstActiveIndex=--nCachedObjects,lastCachedObject=objects[firstActiveIndex],lastIndex=--nObjects,lastObject=objects[lastIndex];// last cached object takes this object's place
indicesByUUID[lastCachedObject.uuid]=index;objects[index]=lastCachedObject;// last object goes to the activated slot and pop
indicesByUUID[lastObject.uuid]=firstActiveIndex;objects[firstActiveIndex]=lastObject;objects.pop();// accounting is done, now do the same for all bindings
for(var j=0,m=nBindings;j!==m;++j){var bindingsForPath=bindings[j],lastCached=bindingsForPath[firstActiveIndex],last=bindingsForPath[lastIndex];bindingsForPath[index]=lastCached;bindingsForPath[firstActiveIndex]=last;bindingsForPath.pop();}}else {// object is active, just swap with the last and pop
var _lastIndex=--nObjects,_lastObject=objects[_lastIndex];if(_lastIndex>0){indicesByUUID[_lastObject.uuid]=index;}objects[index]=_lastObject;objects.pop();// accounting is done, now do the same for all bindings
for(var _j26=0,_m3=nBindings;_j26!==_m3;++_j26){var _bindingsForPath=bindings[_j26];_bindingsForPath[index]=_bindingsForPath[_lastIndex];_bindingsForPath.pop();}}// cached or active
}// if object is known
}// for arguments
this.nCachedObjects_=nCachedObjects;},// Internal interface used by befriended PropertyBinding.Composite:
subscribe_:function subscribe_(path,parsedPath){// returns an array of bindings for the given path that is changed
// according to the contained objects in the group
var indicesByPath=this._bindingsIndicesByPath;var index=indicesByPath[path];var bindings=this._bindings;if(index!==undefined)return bindings[index];var paths=this._paths,parsedPaths=this._parsedPaths,objects=this._objects,nObjects=objects.length,nCachedObjects=this.nCachedObjects_,bindingsForPath=new Array(nObjects);index=bindings.length;indicesByPath[path]=index;paths.push(path);parsedPaths.push(parsedPath);bindings.push(bindingsForPath);for(var _i349=nCachedObjects,n=objects.length;_i349!==n;++_i349){var object=objects[_i349];bindingsForPath[_i349]=new PropertyBinding(object,path,parsedPath);}return bindingsForPath;},unsubscribe_:function unsubscribe_(path){// tells the group to forget about a property path and no longer
// update the array previously obtained with 'subscribe_'
var indicesByPath=this._bindingsIndicesByPath,index=indicesByPath[path];if(index!==undefined){var paths=this._paths,parsedPaths=this._parsedPaths,bindings=this._bindings,lastBindingsIndex=bindings.length-1,lastBindings=bindings[lastBindingsIndex],lastBindingsPath=path[lastBindingsIndex];indicesByPath[lastBindingsPath]=index;bindings[index]=lastBindings;bindings.pop();parsedPaths[index]=parsedPaths[lastBindingsIndex];parsedPaths.pop();paths[index]=paths[lastBindingsIndex];paths.pop();}}});class AnimationAction{constructor(mixer,clip){var localRoot=arguments.length>2&&arguments[2]!==undefined?arguments[2]:null;var blendMode=arguments.length>3&&arguments[3]!==undefined?arguments[3]:clip.blendMode;this._mixer=mixer;this._clip=clip;this._localRoot=localRoot;this.blendMode=blendMode;var tracks=clip.tracks,nTracks=tracks.length,interpolants=new Array(nTracks);var interpolantSettings={endingStart:ZeroCurvatureEnding,endingEnd:ZeroCurvatureEnding};for(var _i350=0;_i350!==nTracks;++_i350){var interpolant=tracks[_i350].createInterpolant(null);interpolants[_i350]=interpolant;interpolant.settings=interpolantSettings;}this._interpolantSettings=interpolantSettings;this._interpolants=interpolants;// bound by the mixer
// inside: PropertyMixer (managed by the mixer)
this._propertyBindings=new Array(nTracks);this._cacheIndex=null;// for the memory manager
this._byClipCacheIndex=null;// for the memory manager
this._timeScaleInterpolant=null;this._weightInterpolant=null;this.loop=LoopRepeat;this._loopCount=-1;// global mixer time when the action is to be started
// it's set back to 'null' upon start of the action
this._startTime=null;// scaled local time of the action
// gets clamped or wrapped to 0..clip.duration according to loop
this.time=0;this.timeScale=1;this._effectiveTimeScale=1;this.weight=1;this._effectiveWeight=1;this.repetitions=Infinity;// no. of repetitions when looping
this.paused=false;// true -> zero effective time scale
this.enabled=true;// false -> zero effective weight
this.clampWhenFinished=false;// keep feeding the last frame?
this.zeroSlopeAtStart=true;// for smooth interpolation w/o separate
this.zeroSlopeAtEnd=true;// clips for start, loop and end
}// State & Scheduling
play(){this._mixer._activateAction(this);return this;}stop(){this._mixer._deactivateAction(this);return this.reset();}reset(){this.paused=false;this.enabled=true;this.time=0;// restart clip
this._loopCount=-1;// forget previous loops
this._startTime=null;// forget scheduling
return this.stopFading().stopWarping();}isRunning(){return this.enabled&&!this.paused&&this.timeScale!==0&&this._startTime===null&&this._mixer._isActiveAction(this);}// return true when play has been called
isScheduled(){return this._mixer._isActiveAction(this);}startAt(time){this._startTime=time;return this;}setLoop(mode,repetitions){this.loop=mode;this.repetitions=repetitions;return this;}// Weight
// set the weight stopping any scheduled fading
// although .enabled = false yields an effective weight of zero, this
// method does *not* change .enabled, because it would be confusing
setEffectiveWeight(weight){this.weight=weight;// note: same logic as when updated at runtime
this._effectiveWeight=this.enabled?weight:0;return this.stopFading();}// return the weight considering fading and .enabled
getEffectiveWeight(){return this._effectiveWeight;}fadeIn(duration){return this._scheduleFading(duration,0,1);}fadeOut(duration){return this._scheduleFading(duration,1,0);}crossFadeFrom(fadeOutAction,duration,warp){fadeOutAction.fadeOut(duration);this.fadeIn(duration);if(warp){var fadeInDuration=this._clip.duration,fadeOutDuration=fadeOutAction._clip.duration,startEndRatio=fadeOutDuration/fadeInDuration,endStartRatio=fadeInDuration/fadeOutDuration;fadeOutAction.warp(1.0,startEndRatio,duration);this.warp(endStartRatio,1.0,duration);}return this;}crossFadeTo(fadeInAction,duration,warp){return fadeInAction.crossFadeFrom(this,duration,warp);}stopFading(){var weightInterpolant=this._weightInterpolant;if(weightInterpolant!==null){this._weightInterpolant=null;this._mixer._takeBackControlInterpolant(weightInterpolant);}return this;}// Time Scale Control
// set the time scale stopping any scheduled warping
// although .paused = true yields an effective time scale of zero, this
// method does *not* change .paused, because it would be confusing
setEffectiveTimeScale(timeScale){this.timeScale=timeScale;this._effectiveTimeScale=this.paused?0:timeScale;return this.stopWarping();}// return the time scale considering warping and .paused
getEffectiveTimeScale(){return this._effectiveTimeScale;}setDuration(duration){this.timeScale=this._clip.duration/duration;return this.stopWarping();}syncWith(action){this.time=action.time;this.timeScale=action.timeScale;return this.stopWarping();}halt(duration){return this.warp(this._effectiveTimeScale,0,duration);}warp(startTimeScale,endTimeScale,duration){var mixer=this._mixer,now=mixer.time,timeScale=this.timeScale;var interpolant=this._timeScaleInterpolant;if(interpolant===null){interpolant=mixer._lendControlInterpolant();this._timeScaleInterpolant=interpolant;}var times=interpolant.parameterPositions,values=interpolant.sampleValues;times[0]=now;times[1]=now+duration;values[0]=startTimeScale/timeScale;values[1]=endTimeScale/timeScale;return this;}stopWarping(){var timeScaleInterpolant=this._timeScaleInterpolant;if(timeScaleInterpolant!==null){this._timeScaleInterpolant=null;this._mixer._takeBackControlInterpolant(timeScaleInterpolant);}return this;}// Object Accessors
getMixer(){return this._mixer;}getClip(){return this._clip;}getRoot(){return this._localRoot||this._mixer._root;}// Interna
_update(time,deltaTime,timeDirection,accuIndex){// called by the mixer
if(!this.enabled){// call ._updateWeight() to update ._effectiveWeight
this._updateWeight(time);return;}var startTime=this._startTime;if(startTime!==null){// check for scheduled start of action
var timeRunning=(time-startTime)*timeDirection;if(timeRunning<0||timeDirection===0){return;// yet to come / don't decide when delta = 0
}// start
this._startTime=null;// unschedule
deltaTime=timeDirection*timeRunning;}// apply time scale and advance time
deltaTime*=this._updateTimeScale(time);var clipTime=this._updateTime(deltaTime);// note: _updateTime may disable the action resulting in
// an effective weight of 0
var weight=this._updateWeight(time);if(weight>0){var interpolants=this._interpolants;var propertyMixers=this._propertyBindings;switch(this.blendMode){case AdditiveAnimationBlendMode:for(var j=0,m=interpolants.length;j!==m;++j){interpolants[j].evaluate(clipTime);propertyMixers[j].accumulateAdditive(weight);}break;case NormalAnimationBlendMode:default:for(var _j27=0,_m4=interpolants.length;_j27!==_m4;++_j27){interpolants[_j27].evaluate(clipTime);propertyMixers[_j27].accumulate(accuIndex,weight);}}}}_updateWeight(time){var weight=0;if(this.enabled){weight=this.weight;var interpolant=this._weightInterpolant;if(interpolant!==null){var interpolantValue=interpolant.evaluate(time)[0];weight*=interpolantValue;if(time>interpolant.parameterPositions[1]){this.stopFading();if(interpolantValue===0){// faded out, disable
this.enabled=false;}}}}this._effectiveWeight=weight;return weight;}_updateTimeScale(time){var timeScale=0;if(!this.paused){timeScale=this.timeScale;var interpolant=this._timeScaleInterpolant;if(interpolant!==null){var interpolantValue=interpolant.evaluate(time)[0];timeScale*=interpolantValue;if(time>interpolant.parameterPositions[1]){this.stopWarping();if(timeScale===0){// motion has halted, pause
this.paused=true;}else {// warp done - apply final time scale
this.timeScale=timeScale;}}}}this._effectiveTimeScale=timeScale;return timeScale;}_updateTime(deltaTime){var duration=this._clip.duration;var loop=this.loop;var time=this.time+deltaTime;var loopCount=this._loopCount;var pingPong=loop===LoopPingPong;if(deltaTime===0){if(loopCount===-1)return time;return pingPong&&(loopCount&1)===1?duration-time:time;}if(loop===LoopOnce){if(loopCount===-1){// just started
this._loopCount=0;this._setEndings(true,true,false);}handle_stop:{if(time>=duration){time=duration;}else if(time<0){time=0;}else {this.time=time;break handle_stop;}if(this.clampWhenFinished)this.paused=true;else this.enabled=false;this.time=time;this._mixer.dispatchEvent({type:'finished',action:this,direction:deltaTime<0?-1:1});}}else {// repetitive Repeat or PingPong
if(loopCount===-1){// just started
if(deltaTime>=0){loopCount=0;this._setEndings(true,this.repetitions===0,pingPong);}else {// when looping in reverse direction, the initial
// transition through zero counts as a repetition,
// so leave loopCount at -1
this._setEndings(this.repetitions===0,true,pingPong);}}if(time>=duration||time<0){// wrap around
var loopDelta=Math.floor(time/duration);// signed
time-=duration*loopDelta;loopCount+=Math.abs(loopDelta);var pending=this.repetitions-loopCount;if(pending<=0){// have to stop (switch state, clamp time, fire event)
if(this.clampWhenFinished)this.paused=true;else this.enabled=false;time=deltaTime>0?duration:0;this.time=time;this._mixer.dispatchEvent({type:'finished',action:this,direction:deltaTime>0?1:-1});}else {// keep running
if(pending===1){// entering the last round
var atStart=deltaTime<0;this._setEndings(atStart,!atStart,pingPong);}else {this._setEndings(false,false,pingPong);}this._loopCount=loopCount;this.time=time;this._mixer.dispatchEvent({type:'loop',action:this,loopDelta:loopDelta});}}else {this.time=time;}if(pingPong&&(loopCount&1)===1){// invert time for the "pong round"
return duration-time;}}return time;}_setEndings(atStart,atEnd,pingPong){var settings=this._interpolantSettings;if(pingPong){settings.endingStart=ZeroSlopeEnding;settings.endingEnd=ZeroSlopeEnding;}else {// assuming for LoopOnce atStart == atEnd == true
if(atStart){settings.endingStart=this.zeroSlopeAtStart?ZeroSlopeEnding:ZeroCurvatureEnding;}else {settings.endingStart=WrapAroundEnding;}if(atEnd){settings.endingEnd=this.zeroSlopeAtEnd?ZeroSlopeEnding:ZeroCurvatureEnding;}else {settings.endingEnd=WrapAroundEnding;}}}_scheduleFading(duration,weightNow,weightThen){var mixer=this._mixer,now=mixer.time;var interpolant=this._weightInterpolant;if(interpolant===null){interpolant=mixer._lendControlInterpolant();this._weightInterpolant=interpolant;}var times=interpolant.parameterPositions,values=interpolant.sampleValues;times[0]=now;values[0]=weightNow;times[1]=now+duration;values[1]=weightThen;return this;}}function AnimationMixer(root){this._root=root;this._initMemoryManager();this._accuIndex=0;this.time=0;this.timeScale=1.0;}AnimationMixer.prototype=Object.assign(Object.create(EventDispatcher.prototype),{constructor:AnimationMixer,_bindAction:function _bindAction(action,prototypeAction){var root=action._localRoot||this._root,tracks=action._clip.tracks,nTracks=tracks.length,bindings=action._propertyBindings,interpolants=action._interpolants,rootUuid=root.uuid,bindingsByRoot=this._bindingsByRootAndName;var bindingsByName=bindingsByRoot[rootUuid];if(bindingsByName===undefined){bindingsByName={};bindingsByRoot[rootUuid]=bindingsByName;}for(var _i351=0;_i351!==nTracks;++_i351){var track=tracks[_i351],trackName=track.name;var binding=bindingsByName[trackName];if(binding!==undefined){bindings[_i351]=binding;}else {binding=bindings[_i351];if(binding!==undefined){// existing binding, make sure the cache knows
if(binding._cacheIndex===null){++binding.referenceCount;this._addInactiveBinding(binding,rootUuid,trackName);}continue;}var path=prototypeAction&&prototypeAction._propertyBindings[_i351].binding.parsedPath;binding=new PropertyMixer(PropertyBinding.create(root,trackName,path),track.ValueTypeName,track.getValueSize());++binding.referenceCount;this._addInactiveBinding(binding,rootUuid,trackName);bindings[_i351]=binding;}interpolants[_i351].resultBuffer=binding.buffer;}},_activateAction:function _activateAction(action){if(!this._isActiveAction(action)){if(action._cacheIndex===null){// this action has been forgotten by the cache, but the user
// appears to be still using it -> rebind
var rootUuid=(action._localRoot||this._root).uuid,clipUuid=action._clip.uuid,actionsForClip=this._actionsByClip[clipUuid];this._bindAction(action,actionsForClip&&actionsForClip.knownActions[0]);this._addInactiveAction(action,clipUuid,rootUuid);}var bindings=action._propertyBindings;// increment reference counts / sort out state
for(var _i352=0,n=bindings.length;_i352!==n;++_i352){var binding=bindings[_i352];if(binding.useCount++===0){this._lendBinding(binding);binding.saveOriginalState();}}this._lendAction(action);}},_deactivateAction:function _deactivateAction(action){if(this._isActiveAction(action)){var bindings=action._propertyBindings;// decrement reference counts / sort out state
for(var _i353=0,n=bindings.length;_i353!==n;++_i353){var binding=bindings[_i353];if(--binding.useCount===0){binding.restoreOriginalState();this._takeBackBinding(binding);}}this._takeBackAction(action);}},// Memory manager
_initMemoryManager:function _initMemoryManager(){this._actions=[];// 'nActiveActions' followed by inactive ones
this._nActiveActions=0;this._actionsByClip={};// inside:
// {
// 	knownActions: Array< AnimationAction > - used as prototypes
// 	actionByRoot: AnimationAction - lookup
// }
this._bindings=[];// 'nActiveBindings' followed by inactive ones
this._nActiveBindings=0;this._bindingsByRootAndName={};// inside: Map< name, PropertyMixer >
this._controlInterpolants=[];// same game as above
this._nActiveControlInterpolants=0;var scope=this;this.stats={actions:{get total(){return scope._actions.length;},get inUse(){return scope._nActiveActions;}},bindings:{get total(){return scope._bindings.length;},get inUse(){return scope._nActiveBindings;}},controlInterpolants:{get total(){return scope._controlInterpolants.length;},get inUse(){return scope._nActiveControlInterpolants;}}};},// Memory management for AnimationAction objects
_isActiveAction:function _isActiveAction(action){var index=action._cacheIndex;return index!==null&&index<this._nActiveActions;},_addInactiveAction:function _addInactiveAction(action,clipUuid,rootUuid){var actions=this._actions,actionsByClip=this._actionsByClip;var actionsForClip=actionsByClip[clipUuid];if(actionsForClip===undefined){actionsForClip={knownActions:[action],actionByRoot:{}};action._byClipCacheIndex=0;actionsByClip[clipUuid]=actionsForClip;}else {var knownActions=actionsForClip.knownActions;action._byClipCacheIndex=knownActions.length;knownActions.push(action);}action._cacheIndex=actions.length;actions.push(action);actionsForClip.actionByRoot[rootUuid]=action;},_removeInactiveAction:function _removeInactiveAction(action){var actions=this._actions,lastInactiveAction=actions[actions.length-1],cacheIndex=action._cacheIndex;lastInactiveAction._cacheIndex=cacheIndex;actions[cacheIndex]=lastInactiveAction;actions.pop();action._cacheIndex=null;var clipUuid=action._clip.uuid,actionsByClip=this._actionsByClip,actionsForClip=actionsByClip[clipUuid],knownActionsForClip=actionsForClip.knownActions,lastKnownAction=knownActionsForClip[knownActionsForClip.length-1],byClipCacheIndex=action._byClipCacheIndex;lastKnownAction._byClipCacheIndex=byClipCacheIndex;knownActionsForClip[byClipCacheIndex]=lastKnownAction;knownActionsForClip.pop();action._byClipCacheIndex=null;var actionByRoot=actionsForClip.actionByRoot,rootUuid=(action._localRoot||this._root).uuid;delete actionByRoot[rootUuid];if(knownActionsForClip.length===0){delete actionsByClip[clipUuid];}this._removeInactiveBindingsForAction(action);},_removeInactiveBindingsForAction:function _removeInactiveBindingsForAction(action){var bindings=action._propertyBindings;for(var _i354=0,n=bindings.length;_i354!==n;++_i354){var binding=bindings[_i354];if(--binding.referenceCount===0){this._removeInactiveBinding(binding);}}},_lendAction:function _lendAction(action){// [ active actions |  inactive actions  ]
// [  active actions >| inactive actions ]
//                 s        a
//                  <-swap->
//                 a        s
var actions=this._actions,prevIndex=action._cacheIndex,lastActiveIndex=this._nActiveActions++,firstInactiveAction=actions[lastActiveIndex];action._cacheIndex=lastActiveIndex;actions[lastActiveIndex]=action;firstInactiveAction._cacheIndex=prevIndex;actions[prevIndex]=firstInactiveAction;},_takeBackAction:function _takeBackAction(action){// [  active actions  | inactive actions ]
// [ active actions |< inactive actions  ]
//        a        s
//         <-swap->
//        s        a
var actions=this._actions,prevIndex=action._cacheIndex,firstInactiveIndex=--this._nActiveActions,lastActiveAction=actions[firstInactiveIndex];action._cacheIndex=firstInactiveIndex;actions[firstInactiveIndex]=action;lastActiveAction._cacheIndex=prevIndex;actions[prevIndex]=lastActiveAction;},// Memory management for PropertyMixer objects
_addInactiveBinding:function _addInactiveBinding(binding,rootUuid,trackName){var bindingsByRoot=this._bindingsByRootAndName,bindings=this._bindings;var bindingByName=bindingsByRoot[rootUuid];if(bindingByName===undefined){bindingByName={};bindingsByRoot[rootUuid]=bindingByName;}bindingByName[trackName]=binding;binding._cacheIndex=bindings.length;bindings.push(binding);},_removeInactiveBinding:function _removeInactiveBinding(binding){var bindings=this._bindings,propBinding=binding.binding,rootUuid=propBinding.rootNode.uuid,trackName=propBinding.path,bindingsByRoot=this._bindingsByRootAndName,bindingByName=bindingsByRoot[rootUuid],lastInactiveBinding=bindings[bindings.length-1],cacheIndex=binding._cacheIndex;lastInactiveBinding._cacheIndex=cacheIndex;bindings[cacheIndex]=lastInactiveBinding;bindings.pop();delete bindingByName[trackName];if(Object.keys(bindingByName).length===0){delete bindingsByRoot[rootUuid];}},_lendBinding:function _lendBinding(binding){var bindings=this._bindings,prevIndex=binding._cacheIndex,lastActiveIndex=this._nActiveBindings++,firstInactiveBinding=bindings[lastActiveIndex];binding._cacheIndex=lastActiveIndex;bindings[lastActiveIndex]=binding;firstInactiveBinding._cacheIndex=prevIndex;bindings[prevIndex]=firstInactiveBinding;},_takeBackBinding:function _takeBackBinding(binding){var bindings=this._bindings,prevIndex=binding._cacheIndex,firstInactiveIndex=--this._nActiveBindings,lastActiveBinding=bindings[firstInactiveIndex];binding._cacheIndex=firstInactiveIndex;bindings[firstInactiveIndex]=binding;lastActiveBinding._cacheIndex=prevIndex;bindings[prevIndex]=lastActiveBinding;},// Memory management of Interpolants for weight and time scale
_lendControlInterpolant:function _lendControlInterpolant(){var interpolants=this._controlInterpolants,lastActiveIndex=this._nActiveControlInterpolants++;var interpolant=interpolants[lastActiveIndex];if(interpolant===undefined){interpolant=new LinearInterpolant(new Float32Array(2),new Float32Array(2),1,this._controlInterpolantsResultBuffer);interpolant.__cacheIndex=lastActiveIndex;interpolants[lastActiveIndex]=interpolant;}return interpolant;},_takeBackControlInterpolant:function _takeBackControlInterpolant(interpolant){var interpolants=this._controlInterpolants,prevIndex=interpolant.__cacheIndex,firstInactiveIndex=--this._nActiveControlInterpolants,lastActiveInterpolant=interpolants[firstInactiveIndex];interpolant.__cacheIndex=firstInactiveIndex;interpolants[firstInactiveIndex]=interpolant;lastActiveInterpolant.__cacheIndex=prevIndex;interpolants[prevIndex]=lastActiveInterpolant;},_controlInterpolantsResultBuffer:new Float32Array(1),// return an action for a clip optionally using a custom root target
// object (this method allocates a lot of dynamic memory in case a
// previously unknown clip/root combination is specified)
clipAction:function clipAction(clip,optionalRoot,blendMode){var root=optionalRoot||this._root,rootUuid=root.uuid;var clipObject=typeof clip==='string'?AnimationClip.findByName(root,clip):clip;var clipUuid=clipObject!==null?clipObject.uuid:clip;var actionsForClip=this._actionsByClip[clipUuid];var prototypeAction=null;if(blendMode===undefined){if(clipObject!==null){blendMode=clipObject.blendMode;}else {blendMode=NormalAnimationBlendMode;}}if(actionsForClip!==undefined){var existingAction=actionsForClip.actionByRoot[rootUuid];if(existingAction!==undefined&&existingAction.blendMode===blendMode){return existingAction;}// we know the clip, so we don't have to parse all
// the bindings again but can just copy
prototypeAction=actionsForClip.knownActions[0];// also, take the clip from the prototype action
if(clipObject===null)clipObject=prototypeAction._clip;}// clip must be known when specified via string
if(clipObject===null)return null;// allocate all resources required to run it
var newAction=new AnimationAction(this,clipObject,optionalRoot,blendMode);this._bindAction(newAction,prototypeAction);// and make the action known to the memory manager
this._addInactiveAction(newAction,clipUuid,rootUuid);return newAction;},// get an existing action
existingAction:function existingAction(clip,optionalRoot){var root=optionalRoot||this._root,rootUuid=root.uuid,clipObject=typeof clip==='string'?AnimationClip.findByName(root,clip):clip,clipUuid=clipObject?clipObject.uuid:clip,actionsForClip=this._actionsByClip[clipUuid];if(actionsForClip!==undefined){return actionsForClip.actionByRoot[rootUuid]||null;}return null;},// deactivates all previously scheduled actions
stopAllAction:function stopAllAction(){var actions=this._actions,nActions=this._nActiveActions;for(var _i355=nActions-1;_i355>=0;--_i355){actions[_i355].stop();}return this;},// advance the time and update apply the animation
update:function update(deltaTime){deltaTime*=this.timeScale;var actions=this._actions,nActions=this._nActiveActions,time=this.time+=deltaTime,timeDirection=Math.sign(deltaTime),accuIndex=this._accuIndex^=1;// run active actions
for(var _i356=0;_i356!==nActions;++_i356){var action=actions[_i356];action._update(time,deltaTime,timeDirection,accuIndex);}// update scene graph
var bindings=this._bindings,nBindings=this._nActiveBindings;for(var _i357=0;_i357!==nBindings;++_i357){bindings[_i357].apply(accuIndex);}return this;},// Allows you to seek to a specific time in an animation.
setTime:function setTime(timeInSeconds){this.time=0;// Zero out time attribute for AnimationMixer object;
for(var _i358=0;_i358<this._actions.length;_i358++){this._actions[_i358].time=0;// Zero out time attribute for all associated AnimationAction objects.
}return this.update(timeInSeconds);// Update used to set exact time. Returns "this" AnimationMixer object.
},// return this mixer's root target object
getRoot:function getRoot(){return this._root;},// free all resources specific to a particular clip
uncacheClip:function uncacheClip(clip){var actions=this._actions,clipUuid=clip.uuid,actionsByClip=this._actionsByClip,actionsForClip=actionsByClip[clipUuid];if(actionsForClip!==undefined){// note: just calling _removeInactiveAction would mess up the
// iteration state and also require updating the state we can
// just throw away
var actionsToRemove=actionsForClip.knownActions;for(var _i359=0,n=actionsToRemove.length;_i359!==n;++_i359){var action=actionsToRemove[_i359];this._deactivateAction(action);var cacheIndex=action._cacheIndex,lastInactiveAction=actions[actions.length-1];action._cacheIndex=null;action._byClipCacheIndex=null;lastInactiveAction._cacheIndex=cacheIndex;actions[cacheIndex]=lastInactiveAction;actions.pop();this._removeInactiveBindingsForAction(action);}delete actionsByClip[clipUuid];}},// free all resources specific to a particular root target object
uncacheRoot:function uncacheRoot(root){var rootUuid=root.uuid,actionsByClip=this._actionsByClip;for(var clipUuid in actionsByClip){var actionByRoot=actionsByClip[clipUuid].actionByRoot,action=actionByRoot[rootUuid];if(action!==undefined){this._deactivateAction(action);this._removeInactiveAction(action);}}var bindingsByRoot=this._bindingsByRootAndName,bindingByName=bindingsByRoot[rootUuid];if(bindingByName!==undefined){for(var trackName in bindingByName){var binding=bindingByName[trackName];binding.restoreOriginalState();this._removeInactiveBinding(binding);}}},// remove a targeted clip from the cache
uncacheAction:function uncacheAction(clip,optionalRoot){var action=this.existingAction(clip,optionalRoot);if(action!==null){this._deactivateAction(action);this._removeInactiveAction(action);}}});class Uniform{constructor(value){if(typeof value==='string'){console.warn('THREE.Uniform: Type parameter is no longer needed.');value=arguments[1];}this.value=value;}clone(){return new Uniform(this.value.clone===undefined?this.value:this.value.clone());}}function InstancedInterleavedBuffer(array,stride,meshPerAttribute){InterleavedBuffer.call(this,array,stride);this.meshPerAttribute=meshPerAttribute||1;}InstancedInterleavedBuffer.prototype=Object.assign(Object.create(InterleavedBuffer.prototype),{constructor:InstancedInterleavedBuffer,isInstancedInterleavedBuffer:true,copy:function copy(source){InterleavedBuffer.prototype.copy.call(this,source);this.meshPerAttribute=source.meshPerAttribute;return this;},clone:function clone(data){var ib=InterleavedBuffer.prototype.clone.call(this,data);ib.meshPerAttribute=this.meshPerAttribute;return ib;},toJSON:function toJSON(data){var json=InterleavedBuffer.prototype.toJSON.call(this,data);json.isInstancedInterleavedBuffer=true;json.meshPerAttribute=this.meshPerAttribute;return json;}});function GLBufferAttribute(buffer,type,itemSize,elementSize,count){this.buffer=buffer;this.type=type;this.itemSize=itemSize;this.elementSize=elementSize;this.count=count;this.version=0;}Object.defineProperty(GLBufferAttribute.prototype,'needsUpdate',{set:function set(value){if(value===true)this.version++;}});Object.assign(GLBufferAttribute.prototype,{isGLBufferAttribute:true,setBuffer:function setBuffer(buffer){this.buffer=buffer;return this;},setType:function setType(type,elementSize){this.type=type;this.elementSize=elementSize;return this;},setItemSize:function setItemSize(itemSize){this.itemSize=itemSize;return this;},setCount:function setCount(count){this.count=count;return this;}});function Raycaster(origin,direction,near,far){this.ray=new Ray(origin,direction);// direction is assumed to be normalized (for accurate distance calculations)
this.near=near||0;this.far=far||Infinity;this.camera=null;this.layers=new Layers();this.params={Mesh:{},Line:{threshold:1},LOD:{},Points:{threshold:1},Sprite:{}};Object.defineProperties(this.params,{PointCloud:{get:function get(){console.warn('THREE.Raycaster: params.PointCloud has been renamed to params.Points.');return this.Points;}}});}function ascSort(a,b){return a.distance-b.distance;}function _intersectObject(object,raycaster,intersects,recursive){if(object.layers.test(raycaster.layers)){object.raycast(raycaster,intersects);}if(recursive===true){var children=object.children;for(var _i360=0,l=children.length;_i360<l;_i360++){_intersectObject(children[_i360],raycaster,intersects,true);}}}Object.assign(Raycaster.prototype,{set:function set(origin,direction){// direction is assumed to be normalized (for accurate distance calculations)
this.ray.set(origin,direction);},setFromCamera:function setFromCamera(coords,camera){if(camera&&camera.isPerspectiveCamera){this.ray.origin.setFromMatrixPosition(camera.matrixWorld);this.ray.direction.set(coords.x,coords.y,0.5).unproject(camera).sub(this.ray.origin).normalize();this.camera=camera;}else if(camera&&camera.isOrthographicCamera){this.ray.origin.set(coords.x,coords.y,(camera.near+camera.far)/(camera.near-camera.far)).unproject(camera);// set origin in plane of camera
this.ray.direction.set(0,0,-1).transformDirection(camera.matrixWorld);this.camera=camera;}else {console.error('THREE.Raycaster: Unsupported camera type: '+camera.type);}},intersectObject:function intersectObject(object,recursive,optionalTarget){var intersects=optionalTarget||[];_intersectObject(object,this,intersects,recursive);intersects.sort(ascSort);return intersects;},intersectObjects:function intersectObjects(objects,recursive,optionalTarget){var intersects=optionalTarget||[];if(Array.isArray(objects)===false){console.warn('THREE.Raycaster.intersectObjects: objects is not an Array.');return intersects;}for(var _i361=0,l=objects.length;_i361<l;_i361++){_intersectObject(objects[_i361],this,intersects,recursive);}intersects.sort(ascSort);return intersects;}});var _vector$8=/*@__PURE__*/new Vector2();class Box2{constructor(min,max){Object.defineProperty(this,'isBox2',{value:true});this.min=min!==undefined?min:new Vector2(+Infinity,+Infinity);this.max=max!==undefined?max:new Vector2(-Infinity,-Infinity);}set(min,max){this.min.copy(min);this.max.copy(max);return this;}setFromPoints(points){this.makeEmpty();for(var _i362=0,il=points.length;_i362<il;_i362++){this.expandByPoint(points[_i362]);}return this;}setFromCenterAndSize(center,size){var halfSize=_vector$8.copy(size).multiplyScalar(0.5);this.min.copy(center).sub(halfSize);this.max.copy(center).add(halfSize);return this;}clone(){return new this.constructor().copy(this);}copy(box){this.min.copy(box.min);this.max.copy(box.max);return this;}makeEmpty(){this.min.x=this.min.y=+Infinity;this.max.x=this.max.y=-Infinity;return this;}isEmpty(){// this is a more robust check for empty than ( volume <= 0 ) because volume can get positive with two negative axes
return this.max.x<this.min.x||this.max.y<this.min.y;}getCenter(target){if(target===undefined){console.warn('THREE.Box2: .getCenter() target is now required');target=new Vector2();}return this.isEmpty()?target.set(0,0):target.addVectors(this.min,this.max).multiplyScalar(0.5);}getSize(target){if(target===undefined){console.warn('THREE.Box2: .getSize() target is now required');target=new Vector2();}return this.isEmpty()?target.set(0,0):target.subVectors(this.max,this.min);}expandByPoint(point){this.min.min(point);this.max.max(point);return this;}expandByVector(vector){this.min.sub(vector);this.max.add(vector);return this;}expandByScalar(scalar){this.min.addScalar(-scalar);this.max.addScalar(scalar);return this;}containsPoint(point){return point.x<this.min.x||point.x>this.max.x||point.y<this.min.y||point.y>this.max.y?false:true;}containsBox(box){return this.min.x<=box.min.x&&box.max.x<=this.max.x&&this.min.y<=box.min.y&&box.max.y<=this.max.y;}getParameter(point,target){// This can potentially have a divide by zero if the box
// has a size dimension of 0.
if(target===undefined){console.warn('THREE.Box2: .getParameter() target is now required');target=new Vector2();}return target.set((point.x-this.min.x)/(this.max.x-this.min.x),(point.y-this.min.y)/(this.max.y-this.min.y));}intersectsBox(box){// using 4 splitting planes to rule out intersections
return box.max.x<this.min.x||box.min.x>this.max.x||box.max.y<this.min.y||box.min.y>this.max.y?false:true;}clampPoint(point,target){if(target===undefined){console.warn('THREE.Box2: .clampPoint() target is now required');target=new Vector2();}return target.copy(point).clamp(this.min,this.max);}distanceToPoint(point){var clampedPoint=_vector$8.copy(point).clamp(this.min,this.max);return clampedPoint.sub(point).length();}intersect(box){this.min.max(box.min);this.max.min(box.max);return this;}union(box){this.min.min(box.min);this.max.max(box.max);return this;}translate(offset){this.min.add(offset);this.max.add(offset);return this;}equals(box){return box.min.equals(this.min)&&box.max.equals(this.max);}}var _startP=/*@__PURE__*/new Vector3();var _startEnd=/*@__PURE__*/new Vector3();class Line3{constructor(start,end){this.start=start!==undefined?start:new Vector3();this.end=end!==undefined?end:new Vector3();}set(start,end){this.start.copy(start);this.end.copy(end);return this;}clone(){return new this.constructor().copy(this);}copy(line){this.start.copy(line.start);this.end.copy(line.end);return this;}getCenter(target){if(target===undefined){console.warn('THREE.Line3: .getCenter() target is now required');target=new Vector3();}return target.addVectors(this.start,this.end).multiplyScalar(0.5);}delta(target){if(target===undefined){console.warn('THREE.Line3: .delta() target is now required');target=new Vector3();}return target.subVectors(this.end,this.start);}distanceSq(){return this.start.distanceToSquared(this.end);}distance(){return this.start.distanceTo(this.end);}at(t,target){if(target===undefined){console.warn('THREE.Line3: .at() target is now required');target=new Vector3();}return this.delta(target).multiplyScalar(t).add(this.start);}closestPointToPointParameter(point,clampToLine){_startP.subVectors(point,this.start);_startEnd.subVectors(this.end,this.start);var startEnd2=_startEnd.dot(_startEnd);var startEnd_startP=_startEnd.dot(_startP);var t=startEnd_startP/startEnd2;if(clampToLine){t=MathUtils.clamp(t,0,1);}return t;}closestPointToPoint(point,clampToLine,target){var t=this.closestPointToPointParameter(point,clampToLine);if(target===undefined){console.warn('THREE.Line3: .closestPointToPoint() target is now required');target=new Vector3();}return this.delta(target).multiplyScalar(t).add(this.start);}applyMatrix4(matrix){this.start.applyMatrix4(matrix);this.end.applyMatrix4(matrix);return this;}equals(line){return line.start.equals(this.start)&&line.end.equals(this.end);}}function ImmediateRenderObject(material){Object3D.call(this);this.material=material;this.render=function/* renderCallback */(){};this.hasPositions=false;this.hasNormals=false;this.hasColors=false;this.hasUvs=false;this.positionArray=null;this.normalArray=null;this.colorArray=null;this.uvArray=null;this.count=0;}ImmediateRenderObject.prototype=Object.create(Object3D.prototype);ImmediateRenderObject.prototype.constructor=ImmediateRenderObject;ImmediateRenderObject.prototype.isImmediateRenderObject=true;var _vector$a=/*@__PURE__*/new Vector3();var _boneMatrix=/*@__PURE__*/new Matrix4();var _matrixWorldInv=/*@__PURE__*/new Matrix4();class SkeletonHelper extends LineSegments{constructor(object){var bones=getBoneList(object);var geometry=new BufferGeometry();var vertices=[];var colors=[];var color1=new Color(0,0,1);var color2=new Color(0,1,0);for(var _i364=0;_i364<bones.length;_i364++){var bone=bones[_i364];if(bone.parent&&bone.parent.isBone){vertices.push(0,0,0);vertices.push(0,0,0);colors.push(color1.r,color1.g,color1.b);colors.push(color2.r,color2.g,color2.b);}}geometry.setAttribute('position',new Float32BufferAttribute(vertices,3));geometry.setAttribute('color',new Float32BufferAttribute(colors,3));var material=new LineBasicMaterial({vertexColors:true,depthTest:false,depthWrite:false,toneMapped:false,transparent:true});super(geometry,material);this.type='SkeletonHelper';this.isSkeletonHelper=true;this.root=object;this.bones=bones;this.matrix=object.matrixWorld;this.matrixAutoUpdate=false;}updateMatrixWorld(force){var bones=this.bones;var geometry=this.geometry;var position=geometry.getAttribute('position');_matrixWorldInv.copy(this.root.matrixWorld).invert();for(var _i365=0,j=0;_i365<bones.length;_i365++){var bone=bones[_i365];if(bone.parent&&bone.parent.isBone){_boneMatrix.multiplyMatrices(_matrixWorldInv,bone.matrixWorld);_vector$a.setFromMatrixPosition(_boneMatrix);position.setXYZ(j,_vector$a.x,_vector$a.y,_vector$a.z);_boneMatrix.multiplyMatrices(_matrixWorldInv,bone.parent.matrixWorld);_vector$a.setFromMatrixPosition(_boneMatrix);position.setXYZ(j+1,_vector$a.x,_vector$a.y,_vector$a.z);j+=2;}}geometry.getAttribute('position').needsUpdate=true;super.updateMatrixWorld(force);}}function getBoneList(object){var boneList=[];if(object&&object.isBone){boneList.push(object);}for(var _i366=0;_i366<object.children.length;_i366++){boneList.push.apply(boneList,getBoneList(object.children[_i366]));}return boneList;}class GridHelper extends LineSegments{constructor(){var size=arguments.length>0&&arguments[0]!==undefined?arguments[0]:10;var divisions=arguments.length>1&&arguments[1]!==undefined?arguments[1]:10;var color1=arguments.length>2&&arguments[2]!==undefined?arguments[2]:0x444444;var color2=arguments.length>3&&arguments[3]!==undefined?arguments[3]:0x888888;color1=new Color(color1);color2=new Color(color2);var center=divisions/2;var step=size/divisions;var halfSize=size/2;var vertices=[],colors=[];for(var _i368=0,j=0,k=-halfSize;_i368<=divisions;_i368++,k+=step){vertices.push(-halfSize,0,k,halfSize,0,k);vertices.push(k,0,-halfSize,k,0,halfSize);var color=_i368===center?color1:color2;color.toArray(colors,j);j+=3;color.toArray(colors,j);j+=3;color.toArray(colors,j);j+=3;color.toArray(colors,j);j+=3;}var geometry=new BufferGeometry();geometry.setAttribute('position',new Float32BufferAttribute(vertices,3));geometry.setAttribute('color',new Float32BufferAttribute(colors,3));var material=new LineBasicMaterial({vertexColors:true,toneMapped:false});super(geometry,material);this.type='GridHelper';}}var _floatView=new Float32Array(1);var _int32View=new Int32Array(_floatView.buffer);var DataUtils={// Converts float32 to float16 (stored as uint16 value).
toHalfFloat:function toHalfFloat(val){// Source: http://gamedev.stackexchange.com/questions/17326/conversion-of-a-number-from-single-precision-floating-point-representation-to-a/17410#17410
/* This method is faster than the OpenEXR implementation (very often
		* used, eg. in Ogre), with the additional benefit of rounding, inspired
		* by James Tursa?s half-precision code. */_floatView[0]=val;var x=_int32View[0];var bits=x>>16&0x8000;/* Get the sign */var m=x>>12&0x07ff;/* Keep one extra bit for rounding */var e=x>>23&0xff;/* Using int is faster here */ /* If zero, or denormal, or exponent underflows too much for a denormal
			* half, return signed zero. */if(e<103)return bits;/* If NaN, return NaN. If Inf or exponent overflow, return Inf. */if(e>142){bits|=0x7c00;/* If exponent was 0xff and one mantissa bit was set, it means NaN,
						* not Inf, so make sure we set one mantissa bit too. */bits|=(e==255?0:1)&&x&0x007fffff;return bits;}/* If exponent underflows but not too much, return a denormal */if(e<113){m|=0x0800;/* Extra rounding may overflow and set mantissa to 0 and exponent
				* to 1, which is OK. */bits|=(m>>114-e)+(m>>113-e&1);return bits;}bits|=e-112<<10|m>>1;/* Extra rounding. An overflow will set mantissa to 0 and increment
			* the exponent, which is OK. */bits+=m&1;return bits;}};Curve.create=function(construct,getPoint){console.log('THREE.Curve.create() has been deprecated');construct.prototype=Object.create(Curve.prototype);construct.prototype.constructor=construct;construct.prototype.getPoint=getPoint;return construct;};//
Object.assign(CurvePath.prototype,{createPointsGeometry:function createPointsGeometry(divisions){console.warn('THREE.CurvePath: .createPointsGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.');// generate geometry from path points (for Line or Points objects)
var pts=this.getPoints(divisions);return this.createGeometry(pts);},createSpacedPointsGeometry:function createSpacedPointsGeometry(divisions){console.warn('THREE.CurvePath: .createSpacedPointsGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.');// generate geometry from equidistant sampling along the path
var pts=this.getSpacedPoints(divisions);return this.createGeometry(pts);},createGeometry:function createGeometry(points){console.warn('THREE.CurvePath: .createGeometry() has been removed. Use new THREE.Geometry().setFromPoints( points ) instead.');var geometry=new Geometry();for(var _i378=0,l=points.length;_i378<l;_i378++){var point=points[_i378];geometry.vertices.push(new Vector3(point.x,point.y,point.z||0));}return geometry;}});//
Object.assign(Path.prototype,{fromPoints:function fromPoints(points){console.warn('THREE.Path: .fromPoints() has been renamed to .setFromPoints().');return this.setFromPoints(points);}});//
function Spline(points){console.warn('THREE.Spline has been removed. Use THREE.CatmullRomCurve3 instead.');CatmullRomCurve3.call(this,points);this.type='catmullrom';}Spline.prototype=Object.create(CatmullRomCurve3.prototype);Object.assign(Spline.prototype,{initFromArray:function initFromArray(/* a */){console.error('THREE.Spline: .initFromArray() has been removed.');},getControlPointsArray:function getControlPointsArray(/* optionalTarget */){console.error('THREE.Spline: .getControlPointsArray() has been removed.');},reparametrizeByArcLength:function reparametrizeByArcLength(/* samplingCoef */){console.error('THREE.Spline: .reparametrizeByArcLength() has been removed.');}});//
GridHelper.prototype.setColors=function(){console.error('THREE.GridHelper: setColors() has been deprecated, pass them in the constructor instead.');};SkeletonHelper.prototype.update=function(){console.error('THREE.SkeletonHelper: update() no longer needs to be called.');};Object.assign(Loader.prototype,{extractUrlBase:function extractUrlBase(url){console.warn('THREE.Loader: .extractUrlBase() has been deprecated. Use THREE.LoaderUtils.extractUrlBase() instead.');return LoaderUtils.extractUrlBase(url);}});Loader.Handlers={add:function add(/* regex, loader */){console.error('THREE.Loader: Handlers.add() has been removed. Use LoadingManager.addHandler() instead.');},get:function get(/* file */){console.error('THREE.Loader: Handlers.get() has been removed. Use LoadingManager.getHandler() instead.');}};Object.assign(Box2.prototype,{center:function center(optionalTarget){console.warn('THREE.Box2: .center() has been renamed to .getCenter().');return this.getCenter(optionalTarget);},empty:function empty(){console.warn('THREE.Box2: .empty() has been renamed to .isEmpty().');return this.isEmpty();},isIntersectionBox:function isIntersectionBox(box){console.warn('THREE.Box2: .isIntersectionBox() has been renamed to .intersectsBox().');return this.intersectsBox(box);},size:function size(optionalTarget){console.warn('THREE.Box2: .size() has been renamed to .getSize().');return this.getSize(optionalTarget);}});Object.assign(Box3.prototype,{center:function center(optionalTarget){console.warn('THREE.Box3: .center() has been renamed to .getCenter().');return this.getCenter(optionalTarget);},empty:function empty(){console.warn('THREE.Box3: .empty() has been renamed to .isEmpty().');return this.isEmpty();},isIntersectionBox:function isIntersectionBox(box){console.warn('THREE.Box3: .isIntersectionBox() has been renamed to .intersectsBox().');return this.intersectsBox(box);},isIntersectionSphere:function isIntersectionSphere(sphere){console.warn('THREE.Box3: .isIntersectionSphere() has been renamed to .intersectsSphere().');return this.intersectsSphere(sphere);},size:function size(optionalTarget){console.warn('THREE.Box3: .size() has been renamed to .getSize().');return this.getSize(optionalTarget);}});Object.assign(Sphere.prototype,{empty:function empty(){console.warn('THREE.Sphere: .empty() has been renamed to .isEmpty().');return this.isEmpty();}});Frustum.prototype.setFromMatrix=function(m){console.warn('THREE.Frustum: .setFromMatrix() has been renamed to .setFromProjectionMatrix().');return this.setFromProjectionMatrix(m);};Line3.prototype.center=function(optionalTarget){console.warn('THREE.Line3: .center() has been renamed to .getCenter().');return this.getCenter(optionalTarget);};Object.assign(MathUtils,{random16:function random16(){console.warn('THREE.Math: .random16() has been deprecated. Use Math.random() instead.');return Math.random();},nearestPowerOfTwo:function nearestPowerOfTwo(value){console.warn('THREE.Math: .nearestPowerOfTwo() has been renamed to .floorPowerOfTwo().');return MathUtils.floorPowerOfTwo(value);},nextPowerOfTwo:function nextPowerOfTwo(value){console.warn('THREE.Math: .nextPowerOfTwo() has been renamed to .ceilPowerOfTwo().');return MathUtils.ceilPowerOfTwo(value);}});Object.assign(Matrix3.prototype,{flattenToArrayOffset:function flattenToArrayOffset(array,offset){console.warn('THREE.Matrix3: .flattenToArrayOffset() has been deprecated. Use .toArray() instead.');return this.toArray(array,offset);},multiplyVector3:function multiplyVector3(vector){console.warn('THREE.Matrix3: .multiplyVector3() has been removed. Use vector.applyMatrix3( matrix ) instead.');return vector.applyMatrix3(this);},multiplyVector3Array:function multiplyVector3Array(/* a */){console.error('THREE.Matrix3: .multiplyVector3Array() has been removed.');},applyToBufferAttribute:function applyToBufferAttribute(attribute){console.warn('THREE.Matrix3: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix3( matrix ) instead.');return attribute.applyMatrix3(this);},applyToVector3Array:function applyToVector3Array(/* array, offset, length */){console.error('THREE.Matrix3: .applyToVector3Array() has been removed.');},getInverse:function getInverse(matrix){console.warn('THREE.Matrix3: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead.');return this.copy(matrix).invert();}});Object.assign(Matrix4.prototype,{extractPosition:function extractPosition(m){console.warn('THREE.Matrix4: .extractPosition() has been renamed to .copyPosition().');return this.copyPosition(m);},flattenToArrayOffset:function flattenToArrayOffset(array,offset){console.warn('THREE.Matrix4: .flattenToArrayOffset() has been deprecated. Use .toArray() instead.');return this.toArray(array,offset);},getPosition:function getPosition(){console.warn('THREE.Matrix4: .getPosition() has been removed. Use Vector3.setFromMatrixPosition( matrix ) instead.');return new Vector3().setFromMatrixColumn(this,3);},setRotationFromQuaternion:function setRotationFromQuaternion(q){console.warn('THREE.Matrix4: .setRotationFromQuaternion() has been renamed to .makeRotationFromQuaternion().');return this.makeRotationFromQuaternion(q);},multiplyToArray:function multiplyToArray(){console.warn('THREE.Matrix4: .multiplyToArray() has been removed.');},multiplyVector3:function multiplyVector3(vector){console.warn('THREE.Matrix4: .multiplyVector3() has been removed. Use vector.applyMatrix4( matrix ) instead.');return vector.applyMatrix4(this);},multiplyVector4:function multiplyVector4(vector){console.warn('THREE.Matrix4: .multiplyVector4() has been removed. Use vector.applyMatrix4( matrix ) instead.');return vector.applyMatrix4(this);},multiplyVector3Array:function multiplyVector3Array(/* a */){console.error('THREE.Matrix4: .multiplyVector3Array() has been removed.');},rotateAxis:function rotateAxis(v){console.warn('THREE.Matrix4: .rotateAxis() has been removed. Use Vector3.transformDirection( matrix ) instead.');v.transformDirection(this);},crossVector:function crossVector(vector){console.warn('THREE.Matrix4: .crossVector() has been removed. Use vector.applyMatrix4( matrix ) instead.');return vector.applyMatrix4(this);},translate:function translate(){console.error('THREE.Matrix4: .translate() has been removed.');},rotateX:function rotateX(){console.error('THREE.Matrix4: .rotateX() has been removed.');},rotateY:function rotateY(){console.error('THREE.Matrix4: .rotateY() has been removed.');},rotateZ:function rotateZ(){console.error('THREE.Matrix4: .rotateZ() has been removed.');},rotateByAxis:function rotateByAxis(){console.error('THREE.Matrix4: .rotateByAxis() has been removed.');},applyToBufferAttribute:function applyToBufferAttribute(attribute){console.warn('THREE.Matrix4: .applyToBufferAttribute() has been removed. Use attribute.applyMatrix4( matrix ) instead.');return attribute.applyMatrix4(this);},applyToVector3Array:function applyToVector3Array(/* array, offset, length */){console.error('THREE.Matrix4: .applyToVector3Array() has been removed.');},makeFrustum:function makeFrustum(left,right,bottom,top,near,far){console.warn('THREE.Matrix4: .makeFrustum() has been removed. Use .makePerspective( left, right, top, bottom, near, far ) instead.');return this.makePerspective(left,right,top,bottom,near,far);},getInverse:function getInverse(matrix){console.warn('THREE.Matrix4: .getInverse() has been removed. Use matrixInv.copy( matrix ).invert(); instead.');return this.copy(matrix).invert();}});Plane.prototype.isIntersectionLine=function(line){console.warn('THREE.Plane: .isIntersectionLine() has been renamed to .intersectsLine().');return this.intersectsLine(line);};Object.assign(Quaternion.prototype,{multiplyVector3:function multiplyVector3(vector){console.warn('THREE.Quaternion: .multiplyVector3() has been removed. Use is now vector.applyQuaternion( quaternion ) instead.');return vector.applyQuaternion(this);},inverse:function inverse(){console.warn('THREE.Quaternion: .inverse() has been renamed to invert().');return this.invert();}});Object.assign(Ray.prototype,{isIntersectionBox:function isIntersectionBox(box){console.warn('THREE.Ray: .isIntersectionBox() has been renamed to .intersectsBox().');return this.intersectsBox(box);},isIntersectionPlane:function isIntersectionPlane(plane){console.warn('THREE.Ray: .isIntersectionPlane() has been renamed to .intersectsPlane().');return this.intersectsPlane(plane);},isIntersectionSphere:function isIntersectionSphere(sphere){console.warn('THREE.Ray: .isIntersectionSphere() has been renamed to .intersectsSphere().');return this.intersectsSphere(sphere);}});Object.assign(Triangle.prototype,{area:function area(){console.warn('THREE.Triangle: .area() has been renamed to .getArea().');return this.getArea();},barycoordFromPoint:function barycoordFromPoint(point,target){console.warn('THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().');return this.getBarycoord(point,target);},midpoint:function midpoint(target){console.warn('THREE.Triangle: .midpoint() has been renamed to .getMidpoint().');return this.getMidpoint(target);},normal:function normal(target){console.warn('THREE.Triangle: .normal() has been renamed to .getNormal().');return this.getNormal(target);},plane:function plane(target){console.warn('THREE.Triangle: .plane() has been renamed to .getPlane().');return this.getPlane(target);}});Object.assign(Triangle,{barycoordFromPoint:function barycoordFromPoint(point,a,b,c,target){console.warn('THREE.Triangle: .barycoordFromPoint() has been renamed to .getBarycoord().');return Triangle.getBarycoord(point,a,b,c,target);},normal:function normal(a,b,c,target){console.warn('THREE.Triangle: .normal() has been renamed to .getNormal().');return Triangle.getNormal(a,b,c,target);}});Object.assign(Shape.prototype,{extractAllPoints:function extractAllPoints(divisions){console.warn('THREE.Shape: .extractAllPoints() has been removed. Use .extractPoints() instead.');return this.extractPoints(divisions);},extrude:function extrude(options){console.warn('THREE.Shape: .extrude() has been removed. Use ExtrudeGeometry() instead.');return new ExtrudeGeometry(this,options);},makeGeometry:function makeGeometry(options){console.warn('THREE.Shape: .makeGeometry() has been removed. Use ShapeGeometry() instead.');return new ShapeGeometry(this,options);}});Object.assign(Vector2.prototype,{fromAttribute:function fromAttribute(attribute,index,offset){console.warn('THREE.Vector2: .fromAttribute() has been renamed to .fromBufferAttribute().');return this.fromBufferAttribute(attribute,index,offset);},distanceToManhattan:function distanceToManhattan(v){console.warn('THREE.Vector2: .distanceToManhattan() has been renamed to .manhattanDistanceTo().');return this.manhattanDistanceTo(v);},lengthManhattan:function lengthManhattan(){console.warn('THREE.Vector2: .lengthManhattan() has been renamed to .manhattanLength().');return this.manhattanLength();}});Object.assign(Vector3.prototype,{setEulerFromRotationMatrix:function setEulerFromRotationMatrix(){console.error('THREE.Vector3: .setEulerFromRotationMatrix() has been removed. Use Euler.setFromRotationMatrix() instead.');},setEulerFromQuaternion:function setEulerFromQuaternion(){console.error('THREE.Vector3: .setEulerFromQuaternion() has been removed. Use Euler.setFromQuaternion() instead.');},getPositionFromMatrix:function getPositionFromMatrix(m){console.warn('THREE.Vector3: .getPositionFromMatrix() has been renamed to .setFromMatrixPosition().');return this.setFromMatrixPosition(m);},getScaleFromMatrix:function getScaleFromMatrix(m){console.warn('THREE.Vector3: .getScaleFromMatrix() has been renamed to .setFromMatrixScale().');return this.setFromMatrixScale(m);},getColumnFromMatrix:function getColumnFromMatrix(index,matrix){console.warn('THREE.Vector3: .getColumnFromMatrix() has been renamed to .setFromMatrixColumn().');return this.setFromMatrixColumn(matrix,index);},applyProjection:function applyProjection(m){console.warn('THREE.Vector3: .applyProjection() has been removed. Use .applyMatrix4( m ) instead.');return this.applyMatrix4(m);},fromAttribute:function fromAttribute(attribute,index,offset){console.warn('THREE.Vector3: .fromAttribute() has been renamed to .fromBufferAttribute().');return this.fromBufferAttribute(attribute,index,offset);},distanceToManhattan:function distanceToManhattan(v){console.warn('THREE.Vector3: .distanceToManhattan() has been renamed to .manhattanDistanceTo().');return this.manhattanDistanceTo(v);},lengthManhattan:function lengthManhattan(){console.warn('THREE.Vector3: .lengthManhattan() has been renamed to .manhattanLength().');return this.manhattanLength();}});Object.assign(Vector4.prototype,{fromAttribute:function fromAttribute(attribute,index,offset){console.warn('THREE.Vector4: .fromAttribute() has been renamed to .fromBufferAttribute().');return this.fromBufferAttribute(attribute,index,offset);},lengthManhattan:function lengthManhattan(){console.warn('THREE.Vector4: .lengthManhattan() has been renamed to .manhattanLength().');return this.manhattanLength();}});//
Object.assign(Geometry.prototype,{computeTangents:function computeTangents(){console.error('THREE.Geometry: .computeTangents() has been removed.');},computeLineDistances:function computeLineDistances(){console.error('THREE.Geometry: .computeLineDistances() has been removed. Use THREE.Line.computeLineDistances() instead.');},applyMatrix:function applyMatrix(matrix){console.warn('THREE.Geometry: .applyMatrix() has been renamed to .applyMatrix4().');return this.applyMatrix4(matrix);}});Object.assign(Object3D.prototype,{getChildByName:function getChildByName(name){console.warn('THREE.Object3D: .getChildByName() has been renamed to .getObjectByName().');return this.getObjectByName(name);},renderDepth:function renderDepth(){console.warn('THREE.Object3D: .renderDepth has been removed. Use .renderOrder, instead.');},translate:function translate(distance,axis){console.warn('THREE.Object3D: .translate() has been removed. Use .translateOnAxis( axis, distance ) instead.');return this.translateOnAxis(axis,distance);},getWorldRotation:function getWorldRotation(){console.error('THREE.Object3D: .getWorldRotation() has been removed. Use THREE.Object3D.getWorldQuaternion( target ) instead.');},applyMatrix:function applyMatrix(matrix){console.warn('THREE.Object3D: .applyMatrix() has been renamed to .applyMatrix4().');return this.applyMatrix4(matrix);}});Object.defineProperties(Object3D.prototype,{eulerOrder:{get:function get(){console.warn('THREE.Object3D: .eulerOrder is now .rotation.order.');return this.rotation.order;},set:function set(value){console.warn('THREE.Object3D: .eulerOrder is now .rotation.order.');this.rotation.order=value;}},useQuaternion:{get:function get(){console.warn('THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.');},set:function set(){console.warn('THREE.Object3D: .useQuaternion has been removed. The library now uses quaternions by default.');}}});Object.assign(Mesh.prototype,{setDrawMode:function setDrawMode(){console.error('THREE.Mesh: .setDrawMode() has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.');}});Object.defineProperties(Mesh.prototype,{drawMode:{get:function get(){console.error('THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode.');return TrianglesDrawMode;},set:function set(){console.error('THREE.Mesh: .drawMode has been removed. The renderer now always assumes THREE.TrianglesDrawMode. Transform your geometry via BufferGeometryUtils.toTrianglesDrawMode() if necessary.');}}});Object.defineProperties(LOD.prototype,{objects:{get:function get(){console.warn('THREE.LOD: .objects has been renamed to .levels.');return this.levels;}}});Object.defineProperty(Skeleton.prototype,'useVertexTexture',{get:function get(){console.warn('THREE.Skeleton: useVertexTexture has been removed.');},set:function set(){console.warn('THREE.Skeleton: useVertexTexture has been removed.');}});SkinnedMesh.prototype.initBones=function(){console.error('THREE.SkinnedMesh: initBones() has been removed.');};Object.defineProperty(Curve.prototype,'__arcLengthDivisions',{get:function get(){console.warn('THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.');return this.arcLengthDivisions;},set:function set(value){console.warn('THREE.Curve: .__arcLengthDivisions is now .arcLengthDivisions.');this.arcLengthDivisions=value;}});//
PerspectiveCamera.prototype.setLens=function(focalLength,filmGauge){console.warn('THREE.PerspectiveCamera.setLens is deprecated. '+'Use .setFocalLength and .filmGauge for a photographic setup.');if(filmGauge!==undefined)this.filmGauge=filmGauge;this.setFocalLength(focalLength);};//
Object.defineProperties(Light.prototype,{onlyShadow:{set:function set(){console.warn('THREE.Light: .onlyShadow has been removed.');}},shadowCameraFov:{set:function set(value){console.warn('THREE.Light: .shadowCameraFov is now .shadow.camera.fov.');this.shadow.camera.fov=value;}},shadowCameraLeft:{set:function set(value){console.warn('THREE.Light: .shadowCameraLeft is now .shadow.camera.left.');this.shadow.camera.left=value;}},shadowCameraRight:{set:function set(value){console.warn('THREE.Light: .shadowCameraRight is now .shadow.camera.right.');this.shadow.camera.right=value;}},shadowCameraTop:{set:function set(value){console.warn('THREE.Light: .shadowCameraTop is now .shadow.camera.top.');this.shadow.camera.top=value;}},shadowCameraBottom:{set:function set(value){console.warn('THREE.Light: .shadowCameraBottom is now .shadow.camera.bottom.');this.shadow.camera.bottom=value;}},shadowCameraNear:{set:function set(value){console.warn('THREE.Light: .shadowCameraNear is now .shadow.camera.near.');this.shadow.camera.near=value;}},shadowCameraFar:{set:function set(value){console.warn('THREE.Light: .shadowCameraFar is now .shadow.camera.far.');this.shadow.camera.far=value;}},shadowCameraVisible:{set:function set(){console.warn('THREE.Light: .shadowCameraVisible has been removed. Use new THREE.CameraHelper( light.shadow.camera ) instead.');}},shadowBias:{set:function set(value){console.warn('THREE.Light: .shadowBias is now .shadow.bias.');this.shadow.bias=value;}},shadowDarkness:{set:function set(){console.warn('THREE.Light: .shadowDarkness has been removed.');}},shadowMapWidth:{set:function set(value){console.warn('THREE.Light: .shadowMapWidth is now .shadow.mapSize.width.');this.shadow.mapSize.width=value;}},shadowMapHeight:{set:function set(value){console.warn('THREE.Light: .shadowMapHeight is now .shadow.mapSize.height.');this.shadow.mapSize.height=value;}}});//
Object.defineProperties(BufferAttribute.prototype,{length:{get:function get(){console.warn('THREE.BufferAttribute: .length has been deprecated. Use .count instead.');return this.array.length;}},dynamic:{get:function get(){console.warn('THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead.');return this.usage===DynamicDrawUsage;},set:function set(/* value */){console.warn('THREE.BufferAttribute: .dynamic has been deprecated. Use .usage instead.');this.setUsage(DynamicDrawUsage);}}});Object.assign(BufferAttribute.prototype,{setDynamic:function setDynamic(value){//console.warn( 'THREE.BufferAttribute: .setDynamic() has been deprecated. Use .setUsage() instead.' );
this.setUsage(value===true?DynamicDrawUsage:StaticDrawUsage);return this;},copyIndicesArray:function copyIndicesArray(/* indices */){console.error('THREE.BufferAttribute: .copyIndicesArray() has been removed.');},setArray:function setArray(/* array */){console.error('THREE.BufferAttribute: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers');}});Object.assign(BufferGeometry.prototype,{addIndex:function addIndex(index){console.warn('THREE.BufferGeometry: .addIndex() has been renamed to .setIndex().');this.setIndex(index);},addAttribute:function addAttribute(name,attribute){console.warn('THREE.BufferGeometry: .addAttribute() has been renamed to .setAttribute().');if(!(attribute&&attribute.isBufferAttribute)&&!(attribute&&attribute.isInterleavedBufferAttribute)){console.warn('THREE.BufferGeometry: .addAttribute() now expects ( name, attribute ).');return this.setAttribute(name,new BufferAttribute(arguments[1],arguments[2]));}if(name==='index'){console.warn('THREE.BufferGeometry.addAttribute: Use .setIndex() for index attribute.');this.setIndex(attribute);return this;}return this.setAttribute(name,attribute);},addDrawCall:function addDrawCall(start,count,indexOffset){if(indexOffset!==undefined){console.warn('THREE.BufferGeometry: .addDrawCall() no longer supports indexOffset.');}console.warn('THREE.BufferGeometry: .addDrawCall() is now .addGroup().');this.addGroup(start,count);},clearDrawCalls:function clearDrawCalls(){console.warn('THREE.BufferGeometry: .clearDrawCalls() is now .clearGroups().');this.clearGroups();},computeTangents:function computeTangents(){console.warn('THREE.BufferGeometry: .computeTangents() has been removed.');},computeOffsets:function computeOffsets(){console.warn('THREE.BufferGeometry: .computeOffsets() has been removed.');},removeAttribute:function removeAttribute(name){console.warn('THREE.BufferGeometry: .removeAttribute() has been renamed to .deleteAttribute().');return this.deleteAttribute(name);},applyMatrix:function applyMatrix(matrix){console.warn('THREE.BufferGeometry: .applyMatrix() has been renamed to .applyMatrix4().');return this.applyMatrix4(matrix);}});Object.defineProperties(BufferGeometry.prototype,{drawcalls:{get:function get(){console.error('THREE.BufferGeometry: .drawcalls has been renamed to .groups.');return this.groups;}},offsets:{get:function get(){console.warn('THREE.BufferGeometry: .offsets has been renamed to .groups.');return this.groups;}}});Object.defineProperties(InstancedBufferGeometry.prototype,{maxInstancedCount:{get:function get(){console.warn('THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount.');return this.instanceCount;},set:function set(value){console.warn('THREE.InstancedBufferGeometry: .maxInstancedCount has been renamed to .instanceCount.');this.instanceCount=value;}}});Object.defineProperties(Raycaster.prototype,{linePrecision:{get:function get(){console.warn('THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead.');return this.params.Line.threshold;},set:function set(value){console.warn('THREE.Raycaster: .linePrecision has been deprecated. Use .params.Line.threshold instead.');this.params.Line.threshold=value;}}});Object.defineProperties(InterleavedBuffer.prototype,{dynamic:{get:function get(){console.warn('THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead.');return this.usage===DynamicDrawUsage;},set:function set(value){console.warn('THREE.InterleavedBuffer: .length has been deprecated. Use .usage instead.');this.setUsage(value);}}});Object.assign(InterleavedBuffer.prototype,{setDynamic:function setDynamic(value){console.warn('THREE.InterleavedBuffer: .setDynamic() has been deprecated. Use .setUsage() instead.');this.setUsage(value===true?DynamicDrawUsage:StaticDrawUsage);return this;},setArray:function setArray(/* array */){console.error('THREE.InterleavedBuffer: .setArray has been removed. Use BufferGeometry .setAttribute to replace/resize attribute buffers');}});//
Object.assign(ExtrudeBufferGeometry.prototype,{getArrays:function getArrays(){console.error('THREE.ExtrudeBufferGeometry: .getArrays() has been removed.');},addShapeList:function addShapeList(){console.error('THREE.ExtrudeBufferGeometry: .addShapeList() has been removed.');},addShape:function addShape(){console.error('THREE.ExtrudeBufferGeometry: .addShape() has been removed.');}});//
Object.assign(Scene.prototype,{dispose:function dispose(){console.error('THREE.Scene: .dispose() has been removed.');}});//
Object.defineProperties(Uniform.prototype,{dynamic:{set:function set(){console.warn('THREE.Uniform: .dynamic has been removed. Use object.onBeforeRender() instead.');}},onUpdate:{value:function value(){console.warn('THREE.Uniform: .onUpdate() has been removed. Use object.onBeforeRender() instead.');return this;}}});//
Object.defineProperties(Material.prototype,{wrapAround:{get:function get(){console.warn('THREE.Material: .wrapAround has been removed.');},set:function set(){console.warn('THREE.Material: .wrapAround has been removed.');}},overdraw:{get:function get(){console.warn('THREE.Material: .overdraw has been removed.');},set:function set(){console.warn('THREE.Material: .overdraw has been removed.');}},wrapRGB:{get:function get(){console.warn('THREE.Material: .wrapRGB has been removed.');return new Color();}},shading:{get:function get(){console.error('THREE.'+this.type+': .shading has been removed. Use the boolean .flatShading instead.');},set:function set(value){console.warn('THREE.'+this.type+': .shading has been removed. Use the boolean .flatShading instead.');this.flatShading=value===FlatShading;}},stencilMask:{get:function get(){console.warn('THREE.'+this.type+': .stencilMask has been removed. Use .stencilFuncMask instead.');return this.stencilFuncMask;},set:function set(value){console.warn('THREE.'+this.type+': .stencilMask has been removed. Use .stencilFuncMask instead.');this.stencilFuncMask=value;}}});Object.defineProperties(MeshPhongMaterial.prototype,{metal:{get:function get(){console.warn('THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead.');return false;},set:function set(){console.warn('THREE.MeshPhongMaterial: .metal has been removed. Use THREE.MeshStandardMaterial instead');}}});Object.defineProperties(MeshPhysicalMaterial.prototype,{transparency:{get:function get(){console.warn('THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission.');return this.transmission;},set:function set(value){console.warn('THREE.MeshPhysicalMaterial: .transparency has been renamed to .transmission.');this.transmission=value;}}});Object.defineProperties(ShaderMaterial.prototype,{derivatives:{get:function get(){console.warn('THREE.ShaderMaterial: .derivatives has been moved to .extensions.derivatives.');return this.extensions.derivatives;},set:function set(value){console.warn('THREE. ShaderMaterial: .derivatives has been moved to .extensions.derivatives.');this.extensions.derivatives=value;}}});//
Object.assign(WebGLRenderer.prototype,{clearTarget:function clearTarget(renderTarget,color,depth,stencil){console.warn('THREE.WebGLRenderer: .clearTarget() has been deprecated. Use .setRenderTarget() and .clear() instead.');this.setRenderTarget(renderTarget);this.clear(color,depth,stencil);},animate:function animate(callback){console.warn('THREE.WebGLRenderer: .animate() is now .setAnimationLoop().');this.setAnimationLoop(callback);},getCurrentRenderTarget:function getCurrentRenderTarget(){console.warn('THREE.WebGLRenderer: .getCurrentRenderTarget() is now .getRenderTarget().');return this.getRenderTarget();},getMaxAnisotropy:function getMaxAnisotropy(){console.warn('THREE.WebGLRenderer: .getMaxAnisotropy() is now .capabilities.getMaxAnisotropy().');return this.capabilities.getMaxAnisotropy();},getPrecision:function getPrecision(){console.warn('THREE.WebGLRenderer: .getPrecision() is now .capabilities.precision.');return this.capabilities.precision;},resetGLState:function resetGLState(){console.warn('THREE.WebGLRenderer: .resetGLState() is now .state.reset().');return this.state.reset();},supportsFloatTextures:function supportsFloatTextures(){console.warn('THREE.WebGLRenderer: .supportsFloatTextures() is now .extensions.get( \'OES_texture_float\' ).');return this.extensions.get('OES_texture_float');},supportsHalfFloatTextures:function supportsHalfFloatTextures(){console.warn('THREE.WebGLRenderer: .supportsHalfFloatTextures() is now .extensions.get( \'OES_texture_half_float\' ).');return this.extensions.get('OES_texture_half_float');},supportsStandardDerivatives:function supportsStandardDerivatives(){console.warn('THREE.WebGLRenderer: .supportsStandardDerivatives() is now .extensions.get( \'OES_standard_derivatives\' ).');return this.extensions.get('OES_standard_derivatives');},supportsCompressedTextureS3TC:function supportsCompressedTextureS3TC(){console.warn('THREE.WebGLRenderer: .supportsCompressedTextureS3TC() is now .extensions.get( \'WEBGL_compressed_texture_s3tc\' ).');return this.extensions.get('WEBGL_compressed_texture_s3tc');},supportsCompressedTexturePVRTC:function supportsCompressedTexturePVRTC(){console.warn('THREE.WebGLRenderer: .supportsCompressedTexturePVRTC() is now .extensions.get( \'WEBGL_compressed_texture_pvrtc\' ).');return this.extensions.get('WEBGL_compressed_texture_pvrtc');},supportsBlendMinMax:function supportsBlendMinMax(){console.warn('THREE.WebGLRenderer: .supportsBlendMinMax() is now .extensions.get( \'EXT_blend_minmax\' ).');return this.extensions.get('EXT_blend_minmax');},supportsVertexTextures:function supportsVertexTextures(){console.warn('THREE.WebGLRenderer: .supportsVertexTextures() is now .capabilities.vertexTextures.');return this.capabilities.vertexTextures;},supportsInstancedArrays:function supportsInstancedArrays(){console.warn('THREE.WebGLRenderer: .supportsInstancedArrays() is now .extensions.get( \'ANGLE_instanced_arrays\' ).');return this.extensions.get('ANGLE_instanced_arrays');},enableScissorTest:function enableScissorTest(boolean){console.warn('THREE.WebGLRenderer: .enableScissorTest() is now .setScissorTest().');this.setScissorTest(boolean);},initMaterial:function initMaterial(){console.warn('THREE.WebGLRenderer: .initMaterial() has been removed.');},addPrePlugin:function addPrePlugin(){console.warn('THREE.WebGLRenderer: .addPrePlugin() has been removed.');},addPostPlugin:function addPostPlugin(){console.warn('THREE.WebGLRenderer: .addPostPlugin() has been removed.');},updateShadowMap:function updateShadowMap(){console.warn('THREE.WebGLRenderer: .updateShadowMap() has been removed.');},setFaceCulling:function setFaceCulling(){console.warn('THREE.WebGLRenderer: .setFaceCulling() has been removed.');},allocTextureUnit:function allocTextureUnit(){console.warn('THREE.WebGLRenderer: .allocTextureUnit() has been removed.');},setTexture:function setTexture(){console.warn('THREE.WebGLRenderer: .setTexture() has been removed.');},setTexture2D:function setTexture2D(){console.warn('THREE.WebGLRenderer: .setTexture2D() has been removed.');},setTextureCube:function setTextureCube(){console.warn('THREE.WebGLRenderer: .setTextureCube() has been removed.');},getActiveMipMapLevel:function getActiveMipMapLevel(){console.warn('THREE.WebGLRenderer: .getActiveMipMapLevel() is now .getActiveMipmapLevel().');return this.getActiveMipmapLevel();}});Object.defineProperties(WebGLRenderer.prototype,{shadowMapEnabled:{get:function get(){return this.shadowMap.enabled;},set:function set(value){console.warn('THREE.WebGLRenderer: .shadowMapEnabled is now .shadowMap.enabled.');this.shadowMap.enabled=value;}},shadowMapType:{get:function get(){return this.shadowMap.type;},set:function set(value){console.warn('THREE.WebGLRenderer: .shadowMapType is now .shadowMap.type.');this.shadowMap.type=value;}},shadowMapCullFace:{get:function get(){console.warn('THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.');return undefined;},set:function set(/* value */){console.warn('THREE.WebGLRenderer: .shadowMapCullFace has been removed. Set Material.shadowSide instead.');}},context:{get:function get(){console.warn('THREE.WebGLRenderer: .context has been removed. Use .getContext() instead.');return this.getContext();}},vr:{get:function get(){console.warn('THREE.WebGLRenderer: .vr has been renamed to .xr');return this.xr;}},gammaInput:{get:function get(){console.warn('THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead.');return false;},set:function set(){console.warn('THREE.WebGLRenderer: .gammaInput has been removed. Set the encoding for textures via Texture.encoding instead.');}},gammaOutput:{get:function get(){console.warn('THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead.');return false;},set:function set(value){console.warn('THREE.WebGLRenderer: .gammaOutput has been removed. Set WebGLRenderer.outputEncoding instead.');this.outputEncoding=value===true?sRGBEncoding:LinearEncoding;}},toneMappingWhitePoint:{get:function get(){console.warn('THREE.WebGLRenderer: .toneMappingWhitePoint has been removed.');return 1.0;},set:function set(){console.warn('THREE.WebGLRenderer: .toneMappingWhitePoint has been removed.');}}});Object.defineProperties(WebGLShadowMap.prototype,{cullFace:{get:function get(){console.warn('THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.');return undefined;},set:function set(/* cullFace */){console.warn('THREE.WebGLRenderer: .shadowMap.cullFace has been removed. Set Material.shadowSide instead.');}},renderReverseSided:{get:function get(){console.warn('THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.');return undefined;},set:function set(){console.warn('THREE.WebGLRenderer: .shadowMap.renderReverseSided has been removed. Set Material.shadowSide instead.');}},renderSingleSided:{get:function get(){console.warn('THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.');return undefined;},set:function set(){console.warn('THREE.WebGLRenderer: .shadowMap.renderSingleSided has been removed. Set Material.shadowSide instead.');}}});Object.defineProperties(WebGLRenderTarget.prototype,{wrapS:{get:function get(){console.warn('THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.');return this.texture.wrapS;},set:function set(value){console.warn('THREE.WebGLRenderTarget: .wrapS is now .texture.wrapS.');this.texture.wrapS=value;}},wrapT:{get:function get(){console.warn('THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.');return this.texture.wrapT;},set:function set(value){console.warn('THREE.WebGLRenderTarget: .wrapT is now .texture.wrapT.');this.texture.wrapT=value;}},magFilter:{get:function get(){console.warn('THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.');return this.texture.magFilter;},set:function set(value){console.warn('THREE.WebGLRenderTarget: .magFilter is now .texture.magFilter.');this.texture.magFilter=value;}},minFilter:{get:function get(){console.warn('THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.');return this.texture.minFilter;},set:function set(value){console.warn('THREE.WebGLRenderTarget: .minFilter is now .texture.minFilter.');this.texture.minFilter=value;}},anisotropy:{get:function get(){console.warn('THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.');return this.texture.anisotropy;},set:function set(value){console.warn('THREE.WebGLRenderTarget: .anisotropy is now .texture.anisotropy.');this.texture.anisotropy=value;}},offset:{get:function get(){console.warn('THREE.WebGLRenderTarget: .offset is now .texture.offset.');return this.texture.offset;},set:function set(value){console.warn('THREE.WebGLRenderTarget: .offset is now .texture.offset.');this.texture.offset=value;}},repeat:{get:function get(){console.warn('THREE.WebGLRenderTarget: .repeat is now .texture.repeat.');return this.texture.repeat;},set:function set(value){console.warn('THREE.WebGLRenderTarget: .repeat is now .texture.repeat.');this.texture.repeat=value;}},format:{get:function get(){console.warn('THREE.WebGLRenderTarget: .format is now .texture.format.');return this.texture.format;},set:function set(value){console.warn('THREE.WebGLRenderTarget: .format is now .texture.format.');this.texture.format=value;}},type:{get:function get(){console.warn('THREE.WebGLRenderTarget: .type is now .texture.type.');return this.texture.type;},set:function set(value){console.warn('THREE.WebGLRenderTarget: .type is now .texture.type.');this.texture.type=value;}},generateMipmaps:{get:function get(){console.warn('THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.');return this.texture.generateMipmaps;},set:function set(value){console.warn('THREE.WebGLRenderTarget: .generateMipmaps is now .texture.generateMipmaps.');this.texture.generateMipmaps=value;}}});//
Object.defineProperties(Audio.prototype,{load:{value:function value(file){console.warn('THREE.Audio: .load has been deprecated. Use THREE.AudioLoader instead.');var scope=this;var audioLoader=new AudioLoader();audioLoader.load(file,function(buffer){scope.setBuffer(buffer);});return this;}},startTime:{set:function set(){console.warn('THREE.Audio: .startTime is now .play( delay ).');}}});AudioAnalyser.prototype.getData=function(){console.warn('THREE.AudioAnalyser: .getData() is now .getFrequencyData().');return this.getFrequencyData();};//
CubeCamera.prototype.updateCubeMap=function(renderer,scene){console.warn('THREE.CubeCamera: .updateCubeMap() is now .update().');return this.update(renderer,scene);};CubeCamera.prototype.clear=function(renderer,color,depth,stencil){console.warn('THREE.CubeCamera: .clear() is now .renderTarget.clear().');return this.renderTarget.clear(renderer,color,depth,stencil);};//
ImageUtils.crossOrigin=undefined;ImageUtils.loadTexture=function(url,mapping,onLoad,onError){console.warn('THREE.ImageUtils.loadTexture has been deprecated. Use THREE.TextureLoader() instead.');var loader=new TextureLoader();loader.setCrossOrigin(this.crossOrigin);var texture=loader.load(url,onLoad,undefined,onError);if(mapping)texture.mapping=mapping;return texture;};ImageUtils.loadTextureCube=function(urls,mapping,onLoad,onError){console.warn('THREE.ImageUtils.loadTextureCube has been deprecated. Use THREE.CubeTextureLoader() instead.');var loader=new CubeTextureLoader();loader.setCrossOrigin(this.crossOrigin);var texture=loader.load(urls,onLoad,undefined,onError);if(mapping)texture.mapping=mapping;return texture;};ImageUtils.loadCompressedTexture=function(){console.error('THREE.ImageUtils.loadCompressedTexture has been removed. Use THREE.DDSLoader instead.');};ImageUtils.loadCompressedTextureCube=function(){console.error('THREE.ImageUtils.loadCompressedTextureCube has been removed. Use THREE.DDSLoader instead.');};//
if(typeof __THREE_DEVTOOLS__!=='undefined'){/* eslint-disable no-undef */__THREE_DEVTOOLS__.dispatchEvent(new CustomEvent('register',{detail:{revision:REVISION}}));/* eslint-enable no-undef */}

class Version {
  constructor(version) {
    this.version = version;
    var vmLength = version.indexOf('.') === -1 ? version.length : version.indexOf('.');
    this.versionMajor = parseInt(version.substr(0, vmLength));
    this.versionMinor = parseInt(version.substr(vmLength + 1));
    if (this.versionMinor.length === 0) {
      this.versionMinor = 0;
    }
  }
  newerThan(version) {
    var v = new Version(version);
    if (this.versionMajor > v.versionMajor) {
      return true;
    } else if (this.versionMajor === v.versionMajor && this.versionMinor > v.versionMinor) {
      return true;
    } else {
      return false;
    }
  }
  equalOrHigher(version) {
    var v = new Version(version);
    if (this.versionMajor > v.versionMajor) {
      return true;
    } else if (this.versionMajor === v.versionMajor && this.versionMinor >= v.versionMinor) {
      return true;
    } else {
      return false;
    }
  }
  upTo(version) {
    return !this.newerThan(version);
  }
}

/**
 * Some types of possible point attribute data formats
 *
 * @class
 */
var PointAttributeTypes = {
  DATA_TYPE_DOUBLE: {
    ordinal: 0,
    name: "double",
    size: 8
  },
  DATA_TYPE_FLOAT: {
    ordinal: 1,
    name: "float",
    size: 4
  },
  DATA_TYPE_INT8: {
    ordinal: 2,
    name: "int8",
    size: 1
  },
  DATA_TYPE_UINT8: {
    ordinal: 3,
    name: "uint8",
    size: 1
  },
  DATA_TYPE_INT16: {
    ordinal: 4,
    name: "int16",
    size: 2
  },
  DATA_TYPE_UINT16: {
    ordinal: 5,
    name: "uint16",
    size: 2
  },
  DATA_TYPE_INT32: {
    ordinal: 6,
    name: "int32",
    size: 4
  },
  DATA_TYPE_UINT32: {
    ordinal: 7,
    name: "uint32",
    size: 4
  },
  DATA_TYPE_INT64: {
    ordinal: 8,
    name: "int64",
    size: 8
  },
  DATA_TYPE_UINT64: {
    ordinal: 9,
    name: "uint64",
    size: 8
  }
};
var i$1 = 0;
for (var obj in PointAttributeTypes) {
  PointAttributeTypes[i$1] = PointAttributeTypes[obj];
  i$1++;
}
class PointAttribute {
  constructor(name, type, numElements) {
    this.name = name;
    this.type = type;
    this.numElements = numElements;
    this.byteSize = this.numElements * this.type.size;
    this.description = "";
    this.range = [Infinity, -Infinity];
  }
}
PointAttribute.POSITION_CARTESIAN = new PointAttribute("POSITION_CARTESIAN", PointAttributeTypes.DATA_TYPE_FLOAT, 3);
PointAttribute.RGBA_PACKED = new PointAttribute("COLOR_PACKED", PointAttributeTypes.DATA_TYPE_INT8, 4);
PointAttribute.COLOR_PACKED = PointAttribute.RGBA_PACKED;
PointAttribute.RGB_PACKED = new PointAttribute("COLOR_PACKED", PointAttributeTypes.DATA_TYPE_INT8, 3);
PointAttribute.NORMAL_FLOATS = new PointAttribute("NORMAL_FLOATS", PointAttributeTypes.DATA_TYPE_FLOAT, 3);
PointAttribute.INTENSITY = new PointAttribute("INTENSITY", PointAttributeTypes.DATA_TYPE_UINT16, 1);
PointAttribute.CLASSIFICATION = new PointAttribute("CLASSIFICATION", PointAttributeTypes.DATA_TYPE_UINT8, 1);
PointAttribute.NORMAL_SPHEREMAPPED = new PointAttribute("NORMAL_SPHEREMAPPED", PointAttributeTypes.DATA_TYPE_UINT8, 2);
PointAttribute.NORMAL_OCT16 = new PointAttribute("NORMAL_OCT16", PointAttributeTypes.DATA_TYPE_UINT8, 2);
PointAttribute.NORMAL = new PointAttribute("NORMAL", PointAttributeTypes.DATA_TYPE_FLOAT, 3);
PointAttribute.RETURN_NUMBER = new PointAttribute("RETURN_NUMBER", PointAttributeTypes.DATA_TYPE_UINT8, 1);
PointAttribute.NUMBER_OF_RETURNS = new PointAttribute("NUMBER_OF_RETURNS", PointAttributeTypes.DATA_TYPE_UINT8, 1);
PointAttribute.SOURCE_ID = new PointAttribute("SOURCE_ID", PointAttributeTypes.DATA_TYPE_UINT16, 1);
PointAttribute.INDICES = new PointAttribute("INDICES", PointAttributeTypes.DATA_TYPE_UINT32, 1);
PointAttribute.SPACING = new PointAttribute("SPACING", PointAttributeTypes.DATA_TYPE_FLOAT, 1);
PointAttribute.GPS_TIME = new PointAttribute("GPS_TIME", PointAttributeTypes.DATA_TYPE_DOUBLE, 1);

function _defineProperty(e, r, t) {
  return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, {
    value: t,
    enumerable: !0,
    configurable: !0,
    writable: !0
  }) : e[r] = t, e;
}
function _toPrimitive(t, r) {
  if ("object" != typeof t || !t) return t;
  var e = t[Symbol.toPrimitive];
  if (void 0 !== e) {
    var i = e.call(t, r || "default");
    if ("object" != typeof i) return i;
    throw new TypeError("@@toPrimitive must return a primitive value.");
  }
  return ("string" === r ? String : Number)(t);
}
function _toPropertyKey(t) {
  var i = _toPrimitive(t, "string");
  return "symbol" == typeof i ? i : i + "";
}

//import SorterWasm from './sorter.wasm';  //wasm加载报错： (Note that you need plugins to import files that are not JavaScript)

var SorterWasm = "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";

//sortIndexes 按照深度排序 

function sortWorker(self) {
  var wasmInstance;
  var wasmMemory;
  var useSharedMemory;
  var integerBasedSort;
  var dynamicMode;
  var splatCount;
  var sortedIndexesOffset = 0;
  var transformIndexesOffset;
  var transformsOffset;
  var precomputedDistancesOffset;
  var mappedDistancesOffset;
  var frequenciesOffset;
  var centersFloatOffset, centersIntOffset, sortedCentersOffset; //
  var colorsOffset, sortedColorsOffset, covsOffset, sortedCovs1Offset, sortedCovs2Offset;
  var modelViewProjOffset;
  var countsZero;
  var sortedIndexesOut;
  var dataInited;
  var Constants;

  /* const uintToFloat = (function(){ 
      const int32View = new Int32Array(1);
      const floatView = new Float32Array(int32View.buffer);
      
      return function(f) {
          int32View[0] = f;
          return floatView[0];
      }; 
  })(); */

  function sort(splatSortCount, splatRenderCount, modelViewProj, usePrecomputedDistances, /* copyIndexesToSort, */copyPrecomputedDistances, copyTransforms) {
    var sortStartTime = performance.now();
    if (!dataInited) {
      return self.postMessage({
        'sortDone': true,
        'splatSortCount': splatSortCount,
        'splatRenderCount': splatRenderCount,
        'sortTime': 0
      });
    }

    //console.log('startSort')

    if (!useSharedMemory) {
      /* const indexesToSort = new Uint32Array(wasmMemory, indexesToSortOffset, copyIndexesToSort.byteLength / Potree.defines.gs3d.BytesPerInt);
      indexesToSort.set(copyIndexesToSort); */
      var transforms = new Float32Array(wasmMemory, transformsOffset, copyTransforms.byteLength / Constants.BytesPerFloat);
      transforms.set(copyTransforms);
      if (usePrecomputedDistances) {
        var precomputedDistances;
        if (integerBasedSort) {
          //可以提高速度，但可能溢出。默认是true
          precomputedDistances = new Int32Array(wasmMemory, precomputedDistancesOffset, copyPrecomputedDistances.byteLength / Constants.BytesPerInt);
        } else {
          precomputedDistances = new Float32Array(wasmMemory, precomputedDistancesOffset, copyPrecomputedDistances.byteLength / Constants.BytesPerFloat);
        }
        precomputedDistances.set(copyPrecomputedDistances);
      }
    }
    if (!countsZero) countsZero = new Uint32Array(Constants.DepthMapRange);
    new Float32Array(wasmMemory, modelViewProjOffset, 16).set(modelViewProj); //由于新数组已经与 WebAssembly 内存关联，实际上是将 modelViewProj 的数据复制到了 WebAssembly 内存的指定位置。
    new Uint32Array(wasmMemory, frequenciesOffset, Constants.DepthMapRange).set(countsZero);
    var sortStartTime1 = performance.now();
    wasmInstance.exports.sortIndexes(centersFloatOffset, centersIntOffset, sortedCentersOffset, precomputedDistancesOffset, colorsOffset, sortedColorsOffset, covsOffset, sortedCovs1Offset, sortedCovs2Offset, mappedDistancesOffset, frequenciesOffset, modelViewProjOffset, sortedIndexesOffset, transformIndexesOffset, transformsOffset, Constants.DepthMapRange, splatSortCount, splatRenderCount, splatCount, usePrecomputedDistances, integerBasedSort, dynamicMode);
    var sortMessage = {
      'sortDone': true,
      'splatSortCount': splatSortCount,
      'splatRenderCount': splatRenderCount,
      'sortTime': 0
      /* datas */
    };
    if (!useSharedMemory) {
      var sortedIndexes = new Uint32Array(wasmMemory, sortedIndexesOffset, splatRenderCount);
      if (!sortedIndexesOut || sortedIndexesOut.length < splatRenderCount) {
        sortedIndexesOut = new Uint32Array(splatRenderCount);
      }
      sortedIndexesOut.set(sortedIndexes);
      sortMessage.sortedIndexes = sortedIndexesOut;
    }
    var sortEndTime = performance.now();
    sortMessage.sortTime = sortEndTime - sortStartTime;
    self.postMessage(sortMessage);
  }
  self.onmessage = e => {
    if (e.data.sort) {
      //请求sort
      var renderCount = e.data.sort.splatRenderCount || 0;
      var sortCount = e.data.sort.splatSortCount || 0;
      var usePrecomputedDistances = e.data.sort.usePrecomputedDistances;
      var copyPrecomputedDistances;
      var copyTransforms;
      if (!useSharedMemory) {
        //copyIndexesToSort = e.data.sort.indexesToSort;
        copyTransforms = e.data.sort.transforms;
        if (usePrecomputedDistances) copyPrecomputedDistances = e.data.sort.precomputedDistances;
      }
      sort(sortCount, renderCount, e.data.sort.modelViewProj, usePrecomputedDistances, copyPrecomputedDistances, copyTransforms);
    } else if (e.data.init) {
      //初始化 分配空间
      // Yep, this is super hacky and gross :(

      Constants = e.data.init.Constants;
      splatCount = e.data.init.splatCount;
      useSharedMemory = e.data.init.useSharedMemory;
      integerBasedSort = e.data.init.integerBasedSort;
      dynamicMode = e.data.init.dynamicMode;
      var CENTERS_BYTES_PER_ENTRY = integerBasedSort ? Constants.BytesPerInt * 4 : Constants.BytesPerFloat * 4;
      var sorterWasmBytes = new Uint8Array(e.data.init.sorterWasmBytes);
      var matrixSize = 16 * Constants.BytesPerFloat;
      var memoryRequiredForIndexesToSort = splatCount * Constants.BytesPerInt;
      var memoryRequiredForCenters = splatCount * CENTERS_BYTES_PER_ENTRY;
      var memoryRequiredForCentersOut = splatCount * Constants.BytesPerFloat * 3;
      //add:------
      var memoryRequiredForColors = splatCount * 1 * 4; //4 byte
      var memoryRequiredForCovsHalf = splatCount * Constants.BytesPerFloat * 3;
      var memoryRequiredForModelViewProjectionMatrix = matrixSize;
      var memoryRequiredForPrecomputedDistances = integerBasedSort ? splatCount * Constants.BytesPerInt : splatCount * Constants.BytesPerFloat;
      var memoryRequiredForMappedDistances = splatCount * Constants.BytesPerInt;
      var memoryRequiredForSortedIndexes = splatCount * Constants.BytesPerInt;
      var memoryRequiredForIntermediateSortBuffers = Constants.DepthMapRange * Constants.BytesPerInt * 2;
      var memoryRequiredforTransformIndexes = dynamicMode ? splatCount * Constants.BytesPerInt : 0;
      var memoryRequiredforTransforms = dynamicMode ? Constants.MaxScenes * matrixSize : 0;
      var extraMemory = Constants.MemoryPageSize * 32;
      var totalRequiredMemory =
      //memoryRequiredForIndexesToSort +
      memoryRequiredForCenters * (integerBasedSort ? 2 : 1) +
      //change !!
      memoryRequiredForCentersOut + memoryRequiredForColors * 2 +
      //add !!
      memoryRequiredForCovsHalf * 4 +
      //add !! 
      memoryRequiredForModelViewProjectionMatrix + memoryRequiredForPrecomputedDistances + memoryRequiredForMappedDistances + memoryRequiredForIntermediateSortBuffers +
      //memoryRequiredForSortedIndexes +
      memoryRequiredforTransformIndexes + memoryRequiredforTransforms + extraMemory;
      var totalPagesRequired = Math.floor(totalRequiredMemory / Constants.MemoryPageSize) + 1;
      var sorterWasmImport = {
        module: {},
        env: {
          memory: new WebAssembly.Memory({
            initial: totalPagesRequired * 2,
            //创建一个初始大小为 .. 页（每页64KiB）的内存实例
            maximum: totalPagesRequired * 4,
            shared: true
          })
        }
      };
      WebAssembly.compile(sorterWasmBytes).then(wasmModule => {
        return WebAssembly.instantiate(wasmModule, sorterWasmImport);
      }).then(instance => {
        wasmInstance = instance;
        //indexesToSortOffset = 0;
        //centersOffset = indexesToSortOffset + memoryRequiredForIndexesToSort;

        centersFloatOffset = 0;
        if (integerBasedSort) {
          centersIntOffset = centersFloatOffset + memoryRequiredForCenters;
        }
        sortedCentersOffset = (integerBasedSort ? centersIntOffset : centersFloatOffset) + memoryRequiredForCenters;
        colorsOffset = sortedCentersOffset + memoryRequiredForCentersOut;
        sortedColorsOffset = colorsOffset + memoryRequiredForColors;
        covsOffset = sortedColorsOffset + memoryRequiredForColors;
        sortedCovs1Offset = covsOffset + memoryRequiredForCovsHalf * 2;
        sortedCovs2Offset = sortedCovs1Offset + memoryRequiredForCovsHalf;
        modelViewProjOffset = sortedCovs2Offset + memoryRequiredForCovsHalf;
        precomputedDistancesOffset = modelViewProjOffset + memoryRequiredForModelViewProjectionMatrix;
        mappedDistancesOffset = precomputedDistancesOffset + memoryRequiredForPrecomputedDistances;
        frequenciesOffset = mappedDistancesOffset + memoryRequiredForMappedDistances;

        //sortedIndexesOffset = frequenciesOffset + memoryRequiredForIntermediateSortBuffers; 

        transformIndexesOffset = frequenciesOffset + memoryRequiredForIntermediateSortBuffers;
        transformsOffset = transformIndexesOffset + memoryRequiredforTransformIndexes;
        wasmMemory = sorterWasmImport.env.memory.buffer; //SharedArrayBuffer
        if (useSharedMemory) {
          self.postMessage({
            'sortSetupPhase1Complete': true,
            '//indexesToSortBuffer': wasmMemory,
            'sortedIndexesOffset': sortedIndexesOffset,
            //'precomputedDistancesBuffer': wasmMemory,
            'precomputedDistancesOffset': precomputedDistancesOffset,
            //'transformsBuffer': wasmMemory,
            'transformsOffset': transformsOffset,
            centersFloatOffset,
            centersIntOffset,
            sortedCentersOffset,
            colorsOffset,
            sortedColorsOffset,
            covsOffset,
            sortedCovs1Offset,
            sortedCovs2Offset,
            wasmMemory
          });
        } else {
          self.postMessage({
            'sortSetupPhase1Complete': true
          });
        }
      });
    } else if (e.data.dataInited) {
      dataInited = true;
    }
  };
}
function createSortWorker(splatCount, integerBasedSort, dynamicMode) {
  var useSharedMemory = true;
  var worker = new Worker(URL.createObjectURL(new Blob(['(', sortWorker.toString(), ')(self)'], {
    type: 'application/javascript'
  })));
  var sorterWasmBinaryString = atob(SorterWasm); //二进制代码
  var sorterWasmBytes = new Uint8Array(sorterWasmBinaryString.length);
  for (var i = 0; i < sorterWasmBinaryString.length; i++) {
    sorterWasmBytes[i] = sorterWasmBinaryString.charCodeAt(i);
  }
  worker.postMessage({
    'init': {
      'sorterWasmBytes': sorterWasmBytes.buffer,
      'splatCount': splatCount,
      'useSharedMemory': useSharedMemory,
      'integerBasedSort': integerBasedSort,
      'dynamicMode': dynamicMode,
      // Super hacky
      'Constants': {
        'BytesPerFloat': Potree.defines.gs3d.BytesPerFloat,
        'BytesPerInt': Potree.defines.gs3d.BytesPerInt,
        'DepthMapRange': Potree.defines.gs3d.DepthMapRange,
        'MemoryPageSize': Potree.defines.gs3d.MemoryPageSize,
        'MaxScenes': Potree.defines.gs3d.MaxScenes
      }
    }
  });
  return worker;
}

/* 

    相关函数见  setupSortWorker     updateSplatSort     updateRenderIndexes  addSplatBuffers

    不share buffer 的话似乎不可行

 */

var dummyGeometry = new BufferGeometry();
var dummyMaterial = new MeshBasicMaterial();

//只允许存在至多一个Splat

class Splat extends Mesh {
  constructor() {
    super(dummyGeometry, dummyMaterial);
    _defineProperty(this, "gatherSceneNodesForSort", function () {
      //将要渲染的点的index写入sortWorkerIndexesToSort的buffer 
      return function () {
        var time0 = performance.now();
        var CenterType = this.integerBasedSort ? Int32Array : Float32Array;
        var CENTERS_BYTES_PER_ENTRY = this.integerBasedSort ? Potree.defines.gs3d.BytesPerInt * 4 : Potree.defines.gs3d.BytesPerFloat * 4;
        var COLORS_BYTES_PER_ENTRY = 1 * 4; //4 byte
        var COVS_BYTES_PER_ENTRY = Potree.defines.gs3d.BytesPerFloat * 6;
        var currentByteOffset = {
          centers: 0,
          centersInt: 0,
          colors: 0,
          covs: 0
        };
        var {
          centersFloat,
          centersInt,
          colors,
          covs
        } = this.sortWorkerDatas.toSort;
        var buffer = centersFloat.buffer; //大伙buffer都是同一个

        var i = 0,
          nodeCount = Potree.visibleNodes.length,
          splatCount = 0;
        while (splatCount < Potree.config.maxSplatCount && i < nodeCount) {
          var numPoints = Potree.visibleNodes[i].geometryNode.numPoints;
          if (numPoints + splatCount > Potree.config.maxSplatCount) break;
          splatCount += numPoints;
          var c0 = numPoints * 3,
            c1 = numPoints * 4,
            c2 = numPoints * 6;
          var geo = Potree.visibleNodes[i].geometryNode.geometry;
          var destView = new Float32Array(buffer, centersFloat.byteOffset + currentByteOffset.centers, c0);
          destView.set(geo.attributes.position.array);
          if (this.integerBasedSort) {
            destView = new Int32Array(buffer, centersInt.byteOffset + currentByteOffset.centersInt, c1);
            destView.set(geo.attributes.centersInt.array);
          }
          destView = new Uint8Array(buffer, colors.byteOffset + currentByteOffset.colors, c1);
          destView.set(geo.attributes.rgba.array);
          destView = new Float32Array(buffer, covs.byteOffset + currentByteOffset.covs, c2);
          destView.set(geo.attributes.covs.array);
          currentByteOffset.centers += numPoints * CENTERS_BYTES_PER_ENTRY;
          currentByteOffset.colors += numPoints * COLORS_BYTES_PER_ENTRY;
          currentByteOffset.covs += numPoints * COVS_BYTES_PER_ENTRY;
        }
        this.sortWorker.postMessage({
          'dataInited': true
        });
        return {
          'splatRenderCount': splatCount
        };
      };
    }());
    _defineProperty(this, "updateSort", function () {
      var mvpMatrix = new Matrix4();
      var cameraPositionArray = [];
      var lastSortViewDir = new Vector3(0, 0, -1);
      var sortViewDir = new Vector3(0, 0, -1);
      var lastSortViewPos = new Vector3();
      var sortViewOffset = new Vector3();
      return async function () {
        if (this.sortRunning || this.unableSort) return;
        var camera = viewer.mainViewport.camera;
        console.log('updateSort');

        /* let angleDiff = 0;
        let positionDiff = 0;
        let needsRefreshForRotation = false;
        let needsRefreshForPosition = false;
          sortViewDir.set(0, 0, -1).applyQuaternion(this.camera.quaternion);
        angleDiff = sortViewDir.dot(lastSortViewDir);
        positionDiff = sortViewOffset.copy(this.camera.position).sub(lastSortViewPos).length();
          if (!force) {
            if (!this.sortNeededForSceneChange && !this.splatMesh.dynamicMode && queuedSorts.length === 0) {
                if (angleDiff <= 0.99) needsRefreshForRotation = true;
                if (positionDiff >= 1.0) needsRefreshForPosition = true;
                if (!needsRefreshForRotation && !needsRefreshForPosition) return;
            }
        } */

        this.sortRunning = true;
        var {
          splatRenderCount
        } = this.gatherSceneNodesForSort();
        this.splatRenderCount = splatRenderCount;
        mvpMatrix.copy(camera.matrixWorld).invert();
        mvpMatrix.premultiply(camera.projectionMatrix);
        mvpMatrix.multiply(this.pointclouds[0].matrixWorld /* this.matrixWorld */);

        /* if (this.gpuAcceleratedSort && (queuedSorts.length <= 1 || queuedSorts.length % 2 === 0)) {
            await this.splatMesh.computeDistancesOnGPU(mvpMatrix, this.sortWorkerPrecomputedDistances);
        } */

        /* if (this.dynamicMode ) {
            queuedSorts.push(this.splatRenderCount);
        } else {
            if (queuedSorts.length === 0) {
                for (let partialSort of partialSorts) {
                    if (angleDiff < partialSort.angleThreshold) {
                        for (let sortFraction of partialSort.sortFractions) {
                            queuedSorts.push(Math.floor(this.splatRenderCount * sortFraction));
                        }
                        break;
                    }
                }
                queuedSorts.push(this.splatRenderCount);
            }
        }
        let sortCount = Math.min(queuedSorts.shift(), this.splatRenderCount); */
        var sortCount = this.splatRenderCount;
        cameraPositionArray[0] = camera.position.x;
        cameraPositionArray[1] = camera.position.y;
        cameraPositionArray[2] = camera.position.z;
        var sortMessage = {
          'modelViewProj': mvpMatrix.elements,
          'cameraPosition': cameraPositionArray,
          'splatRenderCount': this.splatRenderCount,
          'splatSortCount': sortCount,
          'usePrecomputedDistances': this.gpuAcceleratedSort
        };
        /* if (this.splatMesh.dynamicMode) {
            this.splatMesh.fillTransformsArray(this.sortWorkerTransforms);
        } 
        if (!this.sharedMemoryForWorkers) {
            //sortMessage.indexesToSort = this.sortWorkerIndexesToSort;
            sortMessage.transforms = this.sortWorkerTransforms;
            if (this.gpuAcceleratedSort) {
                sortMessage.precomputedDistances = this.sortWorkerPrecomputedDistances;
            }
        }*/

        this.sortPromise = new Promise(resolve => {
          this.sortPromiseResolver = resolve;
        });
        this.sortWorker.postMessage({
          'sort': sortMessage
        });

        /* if (queuedSorts.length === 0) {
            lastSortViewPos.copy( camera.position);
            lastSortViewDir.copy(sortViewDir);
        } 
          this.sortNeededForSceneChange = false;*/
      };
    }());
    this.geometry = this.buildGeometry();
    this.material = this.buildMaterial();
    this.focalAdjustment = 1;
    this.integerBasedSort = true;
    Potree.Utils.setObjectLayers(this, 'model');
    this.pointclouds = [];
    var maxSplatCount = Potree.config.maxSplatCount;
    var PosArrayType = this.integerBasedSort ? Int32Array : Float32Array;
    this.sortWorker = createSortWorker(maxSplatCount, true, true);
    this.sortWorker.onmessage = e => {
      if (e.data.sortDone) {
        this.sortRunning = false;
        var {
          centers,
          colors,
          covs1,
          covs2
        } = this.sortWorkerDatas.sorted;
        this.updateRenderIndexes(centers, colors, covs1, covs2, e.data.splatRenderCount);
        this.lastSortTime = e.data.sortTime;
        this.sortPromiseResolver();
        this.sortPromiseResolver = null;
        viewer.dispatchEvent('content_changed'); //this.forceRenderNextFrame();
      } else if (e.data.sortCanceled) {
        this.sortRunning = false;
      } else if (e.data.sortSetupPhase1Complete) {
        //sortWorker init 完毕
        console.log('Sorting web worker WASM setup complete.');
        var CENTERS_BYTES_PER_ENTRY = this.integerBasedSort ? Potree.defines.gs3d.BytesPerInt * 4 : Potree.defines.gs3d.BytesPerFloat * 4;
        this.sortWorkerDatas = {
          sorted: {
            centers: new Float32Array(e.data.wasmMemory, e.data.sortedCentersOffset, maxSplatCount * 3),
            colors: new Uint8Array(e.data.wasmMemory, e.data.sortedColorsOffset, maxSplatCount * 4),
            covs1: new Float32Array(e.data.wasmMemory, e.data.sortedCovs1Offset, maxSplatCount * 3),
            covs2: new Float32Array(e.data.wasmMemory, e.data.sortedCovs2Offset, maxSplatCount * 3)
          },
          toSort: {
            centersFloat: new Float32Array(e.data.wasmMemory, e.data.centersFloatOffset, maxSplatCount * 4),
            colors: new Uint8Array(e.data.wasmMemory, e.data.colorsOffset, maxSplatCount * 4),
            //所有类型参数均为：buffer, byteOffset, length， 第三个参数是item个数，而非字节数
            covs: new Float32Array(e.data.wasmMemory, e.data.covsOffset, maxSplatCount * 6)
          }
        };
        if (this.integerBasedSort) {
          this.sortWorkerDatas.toSort.centersInt = new Int32Array(e.data.wasmMemory, e.data.centersIntOffset, maxSplatCount * 4);
        }

        //if gpuAcceleratedSort  and dont shareMemory
        //this.sortWorkerPrecomputedDistances = new PosArrayType(e.data.wasmMemory, e.data.precomputedDistancesOffset, maxSplatCount);
        //this.sortWorkerTransforms = new Float32Array(e.data.wasmMemory, e.data.transformsOffset, Potree.defines.gs3d.MaxScenes * 16);

        //this.sortWorker.maxSplatCount = maxSplatCount;//总点数

        console.log('Sorting web worker ready.');
      }
    };

    /* viewer.mainViewport.
    
    gatherSceneNodesForSort */
  }
  addPointcloud(pointcloud) {
    //添加点云，数据先借助点云加载，再转过来
    var index = this.pointclouds.indexOf(pointcloud);
    index == -1 && this.pointclouds.push(pointcloud);
    //this.update()
  }
  removePointcloud(pointcloud) {
    //删除
    var index = this.pointclouds.indexOf(pointcloud);
    index > -1 && this.pointclouds.splice(index, 1);
    //this.update()
  }
  buildGeometry() {
    var baseGeometry = new BufferGeometry();
    baseGeometry.setIndex([0, 1, 2, 0, 2, 3]);

    // Vertices for the instanced quad
    var positionsArray = new Float32Array(4 * 3);
    var positions = new BufferAttribute(positionsArray, 3);
    baseGeometry.setAttribute('position', positions);
    positions.setXYZ(0, -1.0, -1.0, 0.0);
    positions.setXYZ(1, -1.0, 1.0, 0.0);
    positions.setXYZ(2, 1.0, 1.0, 0.0);
    positions.setXYZ(3, 1.0, -1.0, 0.0);
    positions.needsUpdate = true;
    var geometry = new InstancedBufferGeometry().copy(baseGeometry);
    var posArray = new Float32Array(Potree.config.maxSplatCount * 3);
    var centers = new InstancedBufferAttribute(posArray, 3, false);
    centers.setUsage(DynamicDrawUsage);
    geometry.setAttribute('center', centers);
    var colorArray = new Uint8Array(Potree.config.maxSplatCount * 4);
    var colors = new InstancedBufferAttribute(colorArray, 4, true); //第三个参数是normalized， 开启后 WebGL 会在内部将每个颜色分量从 [0, 255] 转换到 [0.0, 1.0] 范围 
    colors.setUsage(DynamicDrawUsage);
    geometry.setAttribute('color', colors);
    var covArray1 = new Float32Array(Potree.config.maxSplatCount * 3);
    var covs1 = new InstancedBufferAttribute(covArray1, 3, false);
    covs1.setUsage(DynamicDrawUsage);
    geometry.setAttribute('covRow1', covs1);
    var covArray2 = new Float32Array(Potree.config.maxSplatCount * 3);
    var covs2 = new InstancedBufferAttribute(covArray2, 3, false);
    covs2.setUsage(DynamicDrawUsage);
    geometry.setAttribute('covRow2', covs2);
    geometry.instanceCount = 0;
    return geometry;
  }
  buildMaterial() {
    var maxScreenSpaceSplatSize = 2048; // 这啥

    var vs = "\n            precision highp float;\n            #include <common>\n            \n            attribute vec3 center;\n            attribute vec4 color;\n            attribute vec3 covRow1;\n            attribute vec3 covRow2;\n            \n            uniform vec2 focal;\n            uniform float orthoZoom;\n            uniform int orthographicMode;\n            uniform int pointCloudModeEnabled;\n            uniform float inverseFocalAdjustment;\n            uniform vec2 viewport;\n            uniform vec2 basisViewport; \n             \n             \n           \n            uniform float splatScale;\n            \n            varying vec4 vColor;\n            varying vec2 vUv;\n\n            varying vec2 vPosition;\n            \n            const float sqrt8 = sqrt(8.0);\n            const float minAlpha = 1.0 / 255.0;\n            \n            void main () {\n\n                mat4 transformModelViewMatrix = modelViewMatrix; \n            \n                vec4 viewCenter = transformModelViewMatrix * vec4(center, 1.0);\n\n                vec4 clipCenter = projectionMatrix * viewCenter;\n\n                float clip = 1.2 * clipCenter.w;\n                if (clipCenter.z < -clip || clipCenter.x < -clip || clipCenter.x > clip || clipCenter.y < -clip || clipCenter.y > clip) {\n                    gl_Position = vec4(0.0, 0.0, 2.0, 1.0);\n                    return;\n                }\n\n                vPosition = position.xy;\n                vColor = color;\n\n\n                mat3 Vrk = mat3(                             // Construct the 3D covariance matrix\n                    covRow1.x, covRow1.y, covRow1.z,\n                    covRow1.y, covRow2.x, covRow2.y,\n                    covRow1.z, covRow2.y, covRow2.z\n                );\n                \n                //\u7FFB\u8BD1\u7ED3\u679C\uFF1A\u6784\u5EFA\u6295\u5F71\u77E9\u9635\u4EFF\u5C04\u8FD1\u4F3C\u7684\u96C5\u53EF\u6BD4\u77E9\u9635\u3002\u5B83\u5C06\u88AB\u7528\u6765\u53D8\u63623D\u534F\u65B9\u5DEE\u77E9\u9635\uFF0C\u800C\u4E0D\u662F\u76F4\u63A5\u4F7F\u7528\u5B9E\u9645\u7684\u6295\u5F71\u77E9\u9635\uFF0C\u56E0\u4E3A\u4F7F\u7528\u5B9E\u9645\u6295\u5F71\u77E9\u9635\u8FDB\u884C\u53D8\u6362\u9700\u8981\u5305\u542B\u975E\u7EBF\u6027\u6210\u5206\uFF08\u900F\u89C6\u9664\u6CD5\uFF09\uFF0C\u8FD9\u4F1A\u5BFC\u81F4\u975E\u9AD8\u65AF\u7684\u7ED3\u679C\u3002\u8FD9\u91CC\u5047\u8BBE\u5F53\u524D\u7684\u6295\u5F71\u4E3A\u900F\u89C6\u6295\u5F71\u3002\n                \n                mat3 J;\n                if (orthographicMode == 1) {\n                    J = transpose(mat3(orthoZoom, 0.0, 0.0,\n                                       0.0, orthoZoom, 0.0,\n                                       0.0, 0.0, 0.0));\n                } else {\n                    float s = 1.0 / (viewCenter.z * viewCenter.z);\n                    J = mat3(\n                        focal.x / viewCenter.z, 0., -(focal.x * viewCenter.x) * s,\n                        0., focal.y / viewCenter.z, -(focal.y * viewCenter.y) * s,\n                        0., 0., 0.\n                    );\n                }\n        \n                // Concatenate the projection approximation with the model-view transformation\n                mat3 W = transpose(mat3(transformModelViewMatrix));\n                mat3 T = W * J;\n\n                // Transform the 3D covariance matrix (Vrk) to compute the 2D covariance matrix\n                mat3 cov2Dm = transpose(T) * Vrk * T;\n                \n         \n                cov2Dm[0][0] += 0.3;\n                cov2Dm[1][1] += 0.3;\n                float compensation = 1.0;\n                \n                \n                \n                vColor.a *= compensation;\n\n                if (vColor.a < minAlpha) return;\n\n                // We are interested in the upper-left 2x2 portion of the projected 3D covariance matrix because\n                // we only care about the X and Y values. We want the X-diagonal, cov2Dm[0][0],\n                // the Y-diagonal, cov2Dm[1][1], and the correlation between the two cov2Dm[0][1]. We don't\n                // need cov2Dm[1][0] because it is a symetric matrix.\n                vec3 cov2Dv = vec3(cov2Dm[0][0], cov2Dm[0][1], cov2Dm[1][1]);\n\n                vec3 ndcCenter = clipCenter.xyz / clipCenter.w;\n\n                float a = cov2Dv.x;\n                float d = cov2Dv.z;\n                float b = cov2Dv.y;\n                float D = a * d - b * b;\n                float trace = a + d;                        //\u8FFD\u8E2A\n                float traceOver2 = 0.5 * trace;\n                float term2 = sqrt(max(0.1f, traceOver2 * traceOver2 - D));\n                float eigenValue1 = traceOver2 + term2;     //\u7279\u5F81\u503CL1\n                float eigenValue2 = traceOver2 - term2;     //\u7279\u5F81\u503CL1\n\n                if (pointCloudModeEnabled == 1) {// each splat is rendered as a filled circle\n                    eigenValue1 = eigenValue2 = 0.2;\n                }\n\n                if (eigenValue2 <= 0.0) return;\n\n                vec2 eigenVector1 = normalize(vec2(b, eigenValue1 - a));\n                // since the eigen vectors are orthogonal, we derive the second one from the first \u7531\u4E8E\u672C\u5F81\u5411\u91CF\u662F\u6B63\u4EA4\u7684\uFF0C\u56E0\u6B64\u6211\u4EEC\u4ECE\u7B2C\u4E00\u4E2A\u5BFC\u51FA\u7B2C\u4E8C\u4E2A\n                vec2 eigenVector2 = vec2(eigenVector1.y, -eigenVector1.x);\n\n                // We use sqrt(8) standard deviations\u504F\u5DEE instead of 3 to eliminate\u6D88\u9664 more of the splat with a very low opacity.\n                vec2 basisVector1 = eigenVector1 * splatScale * min(sqrt8 * sqrt(eigenValue1), ".concat(parseInt(maxScreenSpaceSplatSize), ".0);\n                vec2 basisVector2 = eigenVector2 * splatScale * min(sqrt8 * sqrt(eigenValue2), ").concat(parseInt(maxScreenSpaceSplatSize), ".0);\n\n                vec2 ndcOffset = vec2(vPosition.x * basisVector1 + vPosition.y * basisVector2) *\n                                 basisViewport * 2.0 * inverseFocalAdjustment;\n\n                vec4 quadPos = vec4(ndcCenter.xy + ndcOffset,   ndcCenter.z  , 1.0);\n                gl_Position = quadPos;\n\n                // Scale the position data we send to the fragment shader\n                vPosition *= sqrt8;\n            }\n        ");

    /* vs = `
    
      precision highp float;
      #include <common>
      attribute vec3 center;
      
      mat4 transformModelViewMatrix = modelViewMatrix; 
      
          vec4 viewCenter = transformModelViewMatrix * vec4(center, 1.0);
            vec4 clipCenter = projectionMatrix * viewCenter;
          
          vec3 ndcCenter = clipCenter.xyz / clipCenter.w;
          
          vec3 position2 = position * 0.001;
      gl_Position = vec4(ndcCenter.xyz + position2,  1.0);
    
    ` */

    var fs = "\n            precision highp float;\n            #include <common>\n \n            uniform vec3 debugColor;\n\n            varying vec4 vColor;\n            varying vec2 vUv;\n\n            varying vec2 vPosition;\n\n            void main () {\n                \n                \n                float A = dot(vPosition, vPosition);\n                if (A > 8.0) discard;            //position\u7684\u8303\u56F4\u534A\u5F84\u4E3A1\u3002\u6307\u4E00\u4E2Arectangle\u9762\u4E2D\u7684\u8303\u56F4\u3002\u692D\u5706\u5916\u7684\u5B8C\u5168\u900F\u660E\n                vec3 color = vColor.rgb;\n\n                float opacity = exp(-0.5 * A) * vColor.a;   //\u5468\u56F4\u7684\u900F\u660E\u5EA6\u964D\u4F4E\n\n                gl_FragColor = vec4(color.rgb, opacity); \n                \n                \n                //gl_FragColor = vec4(1.0,1.0,1.0,1.0);\n            }\n        ";
    var uniforms = {
      'orthographicMode': {
        'type': 'i',
        'value': 0
      },
      'focal': {
        'type': 'v2',
        'value': new Vector2()
      },
      'orthoZoom': {
        'type': 'f',
        'value': 1.0
      },
      'inverseFocalAdjustment': {
        'type': 'f',
        'value': 1.0
      },
      'viewport': {
        'type': 'v2',
        'value': new Vector2()
      },
      'basisViewport': {
        'type': 'v2',
        'value': new Vector2()
      },
      'splatScale': {
        'type': 'f',
        'value': 1
      },
      'pointCloudModeEnabled': {
        'type': 'i',
        'value': 0
      }
    };
    var material = new ShaderMaterial({
      uniforms: uniforms,
      vertexShader: vs,
      fragmentShader: fs,
      transparent: true,
      alphaTest: 1.0,
      blending: NormalBlending,
      depthTest: true,
      depthWrite: false,
      side: DoubleSide
    });
    return material;
  }
  update() {
    this.updateMesh();
  }
  updateMesh() {
    //updateSplatMesh
    if (!this.splatMesh) return;

    //this.updateTransforms(); 
    var renderDimensions = viewer.renderer.getSize(new Vector2());
    var focalLengthX = viewer.camera.projectionMatrix.elements[0] * 0.5 * window.devicePixelRatio * renderDimensions.x;
    var focalLengthY = viewer.camera.projectionMatrix.elements[5] * 0.5 * window.devicePixelRatio * renderDimensions.y;
    var focalMultiplier = viewer.camera.isOrthographicCamera ? 1.0 / window.devicePixelRatio : 1.0;
    var focalAdjustment = this.focalAdjustment * focalMultiplier;
    var inverseFocalAdjustment = 1.0 / focalAdjustment;
    this.updateUniforms(renderDimensions, focalLengthX * focalAdjustment, focalLengthY * focalAdjustment, this.camera.isOrthographicCamera, this.camera.zoom || 1.0, inverseFocalAdjustment);
  }
  updateUniforms(renderDimensions, cameraFocalLengthX, cameraFocalLengthY, orthographicMode, orthographicZoom, inverseFocalAdjustment) {
    var viewport = new Vector2();
    var splatCount = this.getSplatCount();
    if (splatCount > 0) {
      viewport.set(renderDimensions.x * this.devicePixelRatio, renderDimensions.y * this.devicePixelRatio);
      this.material.uniforms.viewport.value.copy(viewport);
      this.material.uniforms.basisViewport.value.set(1.0 / viewport.x, 1.0 / viewport.y);
      this.material.uniforms.focal.value.set(cameraFocalLengthX, cameraFocalLengthY);
      this.material.uniforms.orthographicMode.value = orthographicMode ? 1 : 0;
      this.material.uniforms.orthoZoom.value = orthographicZoom;
      this.material.uniforms.inverseFocalAdjustment.value = inverseFocalAdjustment;
      if (this.dynamicMode) {
        for (var i = 0; i < this.scenes.length; i++) {
          this.material.uniforms.transforms.value[i].copy(this.getScene(i).transform);
        }
      }
      this.material.uniformsNeedUpdate = true;
    }
  }
  updateRenderIndexes(globalCenters, globalColors, globalCovs1, globalCovs2, renderSplatCount) {
    var geometry = this.geometry;
    var start = performance.now();
    geometry.attributes.center.array = globalCenters; //直接更改速度快，但会有鬼影, why?? 明明sort前的区间和sort后的完全独立互不干扰了
    geometry.attributes.center.needsUpdate = true;
    geometry.attributes.color.array = globalColors;
    geometry.attributes.color.needsUpdate = true;
    geometry.attributes.covRow1.array = globalCovs1;
    geometry.attributes.covRow1.needsUpdate = true;
    geometry.attributes.covRow2.array = globalCovs2;
    geometry.attributes.covRow2.needsUpdate = true;
    if (renderSplatCount > 0) geometry.instanceCount = renderSplatCount;
  }
}
_defineProperty(Splat, "computeCovariance", function () {
  //通过旋转和缩放计算协方差（决定姿态）得到6个数  

  var tempMatrix4 = new Matrix4();
  var scaleMatrix = new Matrix3();
  var rotationMatrix = new Matrix3();
  var covarianceMatrix = new Matrix3();
  var transformedCovariance = new Matrix3();
  var transform3x3 = new Matrix3();
  var transform3x3Transpose = new Matrix3();
  var thf = DataUtils.toHalfFloat.bind(DataUtils);
  return function (scale, rotation, transform, outCovariance) {
    var outOffset = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 0;
    var desiredOutputCompressionLevel = arguments.length > 5 ? arguments[5] : undefined;
    tempMatrix4.makeScale(scale.x, scale.y, scale.z);
    scaleMatrix.setFromMatrix4(tempMatrix4);
    tempMatrix4.makeRotationFromQuaternion(rotation);
    rotationMatrix.setFromMatrix4(tempMatrix4);
    covarianceMatrix.copy(rotationMatrix).multiply(scaleMatrix);
    transformedCovariance.copy(covarianceMatrix).transpose().premultiply(covarianceMatrix); //为什么要乘以自己的转置呀？

    if (transform) {
      //场景的整体transform   如果可能移动就不传，在sort时直接乘
      transform3x3.setFromMatrix4(transform);
      transform3x3Transpose.copy(transform3x3).transpose();
      transformedCovariance.multiply(transform3x3Transpose);
      transformedCovariance.premultiply(transform3x3);
    }
    if (desiredOutputCompressionLevel === 1) {
      //压缩
      outCovariance[outOffset] = thf(transformedCovariance.elements[0]);
      outCovariance[outOffset + 1] = thf(transformedCovariance.elements[3]);
      outCovariance[outOffset + 2] = thf(transformedCovariance.elements[6]);
      outCovariance[outOffset + 3] = thf(transformedCovariance.elements[4]);
      outCovariance[outOffset + 4] = thf(transformedCovariance.elements[7]);
      outCovariance[outOffset + 5] = thf(transformedCovariance.elements[8]);
    } else {
      outCovariance[outOffset] = transformedCovariance.elements[0];
      outCovariance[outOffset + 1] = transformedCovariance.elements[3];
      outCovariance[outOffset + 2] = transformedCovariance.elements[6];
      outCovariance[outOffset + 3] = transformedCovariance.elements[4];
      outCovariance[outOffset + 4] = transformedCovariance.elements[7];
      outCovariance[outOffset + 5] = transformedCovariance.elements[8];
    }

    /* 
    Vrk 中的元素分别是transformedCovariance的 [
        0,3,6,
        3,4,7,
        6,7,8 
    ]
    
    */
  };
}());

var typedArrayMapping = {
  "int8": Int8Array,
  "int16": Int16Array,
  "int32": Int32Array,
  "int64": Float64Array,
  "uint8": Uint8Array,
  "uint16": Uint16Array,
  "uint32": Uint32Array,
  "uint64": Float64Array,
  "float": Float32Array,
  "double": Float64Array
};
var gs3dProplist = ['f_dc_0',
//color
'f_dc_1', 'f_dc_2', 'f_rest_0',
// has sh if not null  at origin inriav1parser.js
'f_rest_1', 'f_rest_2', 'f_rest_3', 'f_rest_4', 'f_rest_5', 'f_rest_6', 'f_rest_7', 'f_rest_8', 'f_rest_9', 'f_rest_10', 'f_rest_11', 'f_rest_12', 'f_rest_13', 'f_rest_14', 'f_rest_15', 'f_rest_16', 'f_rest_17', 'f_rest_18', 'f_rest_19', 'f_rest_20', 'f_rest_21', 'f_rest_22', 'f_rest_23', 'f_rest_24', 'f_rest_25', 'f_rest_26', 'f_rest_27', 'f_rest_28', 'f_rest_29', 'f_rest_30', 'f_rest_31', 'f_rest_32', 'f_rest_33', 'f_rest_34', 'f_rest_35', 'f_rest_36', 'f_rest_37', 'f_rest_38', 'f_rest_39', 'f_rest_40', 'f_rest_41', 'f_rest_42', 'f_rest_43', 'f_rest_44', 'opacity', 'scale_0', 'scale_1', 'scale_2', 'rot_0', 'rot_1', 'rot_2', 'rot_3'];
Potree = {};
onmessage = function onmessage(event) {
  performance.mark("binary-decoder-start");
  var buffer = event.data.buffer;
  var pointAttributes = event.data.pointAttributes;
  var numPoints = buffer.byteLength / pointAttributes.byteSize;
  var view = new DataView(buffer);
  var version = new Version(event.data.version);
  var nodeOffset = event.data.offset;
  var scale = event.data.scale;
  var spacing = event.data.spacing;
  var hasChildren = event.data.hasChildren;
  var name = event.data.name;
  var tightBoxMin = [Number.POSITIVE_INFINITY, Number.POSITIVE_INFINITY, Number.POSITIVE_INFINITY];
  var tightBoxMax = [Number.NEGATIVE_INFINITY, Number.NEGATIVE_INFINITY, Number.NEGATIVE_INFINITY];
  var mean = [0, 0, 0];
  var attributeBuffers = {};
  var inOffset = 0;
  var hasGS3D = pointAttributes.attributes.some(e => e.name == 'GS3D');
  var _loop = function _loop(pointAttribute) {
    if (pointAttribute.name === "POSITION_CARTESIAN") {
      var _buff = new ArrayBuffer(numPoints * 4 * 3);
      var positions = new Float32Array(_buff);
      for (var _j = 0; _j < numPoints; _j++) {
        var x = void 0,
          y = void 0,
          z = void 0;
        if (version.newerThan('1.3')) {
          x = view.getUint32(inOffset + _j * pointAttributes.byteSize + 0, true) * scale;
          y = view.getUint32(inOffset + _j * pointAttributes.byteSize + 4, true) * scale;
          z = view.getUint32(inOffset + _j * pointAttributes.byteSize + 8, true) * scale;
        } else {
          x = view.getFloat32(_j * pointAttributes.byteSize + 0, true) + nodeOffset[0];
          y = view.getFloat32(_j * pointAttributes.byteSize + 4, true) + nodeOffset[1];
          z = view.getFloat32(_j * pointAttributes.byteSize + 8, true) + nodeOffset[2];
        }
        positions[3 * _j + 0] = x;
        positions[3 * _j + 1] = y;
        positions[3 * _j + 2] = z;
        mean[0] += x / numPoints;
        mean[1] += y / numPoints;
        mean[2] += z / numPoints;
        tightBoxMin[0] = Math.min(tightBoxMin[0], x);
        tightBoxMin[1] = Math.min(tightBoxMin[1], y);
        tightBoxMin[2] = Math.min(tightBoxMin[2], z);
        tightBoxMax[0] = Math.max(tightBoxMax[0], x);
        tightBoxMax[1] = Math.max(tightBoxMax[1], y);
        tightBoxMax[2] = Math.max(tightBoxMax[2], z);
      }
      attributeBuffers[pointAttribute.name] = {
        buffer: _buff,
        attribute: pointAttribute
      };
      if (hasGS3D) {
        //add 
        var buff2 = new ArrayBuffer(numPoints * 4 * 4);
        var centersInt = new Int32Array(buff2);
        for (var _i = 0; _i < numPoints; _i++) {
          centersInt[4 * _i + 0] = positions[3 * _i + 0] * 1000;
          centersInt[4 * _i + 1] = positions[3 * _i + 1] * 1000;
          centersInt[4 * _i + 2] = positions[3 * _i + 2] * 1000;
          centersInt[4 * _i + 3] = 1000;
        }
        attributeBuffers['centersInt'] = {
          buffer: buff2,
          attribute: pointAttribute
        };
      }
    } else if (pointAttribute.name === "rgba") {
      var _buff2 = new ArrayBuffer(numPoints * 4);
      var colors = new Uint8Array(_buff2);
      for (var _j2 = 0; _j2 < numPoints; _j2++) {
        colors[4 * _j2 + 0] = view.getUint8(inOffset + _j2 * pointAttributes.byteSize + 0);
        colors[4 * _j2 + 1] = view.getUint8(inOffset + _j2 * pointAttributes.byteSize + 1);
        colors[4 * _j2 + 2] = view.getUint8(inOffset + _j2 * pointAttributes.byteSize + 2);
      }
      attributeBuffers[pointAttribute.name] = {
        buffer: _buff2,
        attribute: pointAttribute
      };
    } else if (pointAttribute.name === "NORMAL_SPHEREMAPPED") {
      var _buff3 = new ArrayBuffer(numPoints * 4 * 3);
      var normals = new Float32Array(_buff3);
      for (var _j3 = 0; _j3 < numPoints; _j3++) {
        var bx = view.getUint8(inOffset + _j3 * pointAttributes.byteSize + 0);
        var by = view.getUint8(inOffset + _j3 * pointAttributes.byteSize + 1);
        var ex = bx / 255;
        var ey = by / 255;
        var nx = ex * 2 - 1;
        var ny = ey * 2 - 1;
        var nz = 1;
        var nw = -1;
        var l = nx * -nx + ny * -ny + nz * -nw;
        nz = l;
        nx = nx * Math.sqrt(l);
        ny = ny * Math.sqrt(l);
        nx = nx * 2;
        ny = ny * 2;
        nz = nz * 2 - 1;
        normals[3 * _j3 + 0] = nx;
        normals[3 * _j3 + 1] = ny;
        normals[3 * _j3 + 2] = nz;
      }
      attributeBuffers[pointAttribute.name] = {
        buffer: _buff3,
        attribute: pointAttribute
      };
    } else if (pointAttribute.name === "NORMAL_OCT16") {
      //只需要2 byte！ 原本需要12个byte
      var _buff4 = new ArrayBuffer(numPoints * 4 * 3);
      var _normals = new Float32Array(_buff4);
      for (var _j4 = 0; _j4 < numPoints; _j4++) {
        var _bx = view.getUint8(inOffset + _j4 * pointAttributes.byteSize + 0);
        var _by = view.getUint8(inOffset + _j4 * pointAttributes.byteSize + 1);
        var u = _bx / 255 * 2 - 1;
        var v = _by / 255 * 2 - 1;
        var _z = 1 - Math.abs(u) - Math.abs(v);
        var _x = 0;
        var _y = 0;
        if (_z >= 0) {
          _x = u;
          _y = v;
        } else {
          _x = -(v / Math.sign(v) - 1) / Math.sign(u);
          _y = -(u / Math.sign(u) - 1) / Math.sign(v);
        }
        var length = Math.sqrt(_x * _x + _y * _y + _z * _z); //因法线长度固定为1，所以只需要xy就能算出z（不过这里似乎是约定相加为1？）
        _x = _x / length; //x和y都只有一个byte，所以精度很低，只有256个分段            
        _y = _y / length;
        _z = _z / length;
        _normals[3 * _j4 + 0] = _x;
        _normals[3 * _j4 + 1] = _y;
        _normals[3 * _j4 + 2] = _z;
      }
      attributeBuffers[pointAttribute.name] = {
        buffer: _buff4,
        attribute: pointAttribute
      };
    } else if (pointAttribute.name === "NORMAL") {
      var _buff5 = new ArrayBuffer(numPoints * 4 * 3);
      var _normals2 = new Float32Array(_buff5);
      for (var _j5 = 0; _j5 < numPoints; _j5++) {
        var _x2 = view.getFloat32(inOffset + _j5 * pointAttributes.byteSize + 0, true);
        var _y2 = view.getFloat32(inOffset + _j5 * pointAttributes.byteSize + 4, true);
        var _z2 = view.getFloat32(inOffset + _j5 * pointAttributes.byteSize + 8, true);
        _normals2[3 * _j5 + 0] = _x2;
        _normals2[3 * _j5 + 1] = _y2;
        _normals2[3 * _j5 + 2] = _z2;
      }
      attributeBuffers[pointAttribute.name] = {
        buffer: _buff5,
        attribute: pointAttribute
      };
    } else if (pointAttribute.name === "GS3D") {
      //add  见inriav1plyparser.js
      //////////////////////////////////////////////////////////
      var _buff6 = new ArrayBuffer(numPoints * pointAttribute.byteSize);
      var _f = new Float32Array(_buff6);
      for (var _j6 = 0; _j6 < numPoints; _j6++) {
        //仿照position的写法 填入数据
        for (var _i2 = 0; _i2 < pointAttribute.numElements; _i2++) {
          //f32[pointAttribute.numElements * j + i] = view.getUint32( inOffset + j * pointAttributes.byteSize + 4*i, true) * scale   ;
          _f[pointAttribute.numElements * _j6 + _i2] = view.getFloat32(inOffset + _j6 * pointAttributes.byteSize + 4 * _i2, true); //+ nodeOffset[0];
          //是Uint32还是Float32？ PlyParserUtils.js中写的是getFloat32 （    rawVertex[fieldId] = vertexData.getFloat32(offset + fieldOffsets[fieldId], true);）
        }
      }
      attributeBuffers[pointAttribute.name] = {
        buffer: _buff6,
        attribute: pointAttribute
      };

      //得到颜色

      var _buff7 = new ArrayBuffer(numPoints * 4);
      var _colors = new Uint8Array(_buff7);
      var SH_C0 = 0.28209479177387814;
      var offset_opa = gs3dProplist.indexOf('opacity');
      var offset_col = gs3dProplist.indexOf('f_dc_0');
      var getColor = index => {
        var value = (0.5 + SH_C0 * _f[index + offset_col]) * 255;
        return MathUtils.clamp(Math.floor(value), 0, 255);
      };
      var getOpacity = index => {
        var value = 1 / (1 + Math.exp(-_f[index + offset_opa])) * 255;
        return MathUtils.clamp(Math.floor(value), 0, 255);
      };
      for (var _j7 = 0; _j7 < numPoints; _j7++) {
        _colors[4 * _j7 + 0] = getColor(_j7 * pointAttribute.numElements + 0);
        _colors[4 * _j7 + 1] = getColor(_j7 * pointAttribute.numElements + 1);
        _colors[4 * _j7 + 2] = getColor(_j7 * pointAttribute.numElements + 2);
        _colors[4 * _j7 + 3] = getOpacity(_j7 * pointAttribute.numElements + 2);
      }
      attributeBuffers['rgba'] = {
        buffer: _buff7,
        attribute: pointAttribute
      };

      //scale 
      /* let buff4 = new ArrayBuffer(numPoints * 12);
      let scale = new Float32Array(buff4);
      const offset_scale = gs3dProplist.indexOf('scale_0') //第49个数开始是      
      let getScale = (index)=>{
          return Math.exp(f32[index+offset_scale]); 
      }
      for (let j = 0; j < numPoints; j++) {
      scale[3 * j + 0] = getScale(j * pointAttribute.numElements + 0)   
      scale[3 * j + 1] = getScale(j * pointAttribute.numElements + 1) 
      scale[3 * j + 2] = getScale(j * pointAttribute.numElements + 2) 
      }
      attributeBuffers['scale'] = { buffer: buff4, attribute: pointAttribute };
      
      
      //rotation
      let buff5 = new ArrayBuffer(numPoints * 16);
      let qua = new Float32Array(buff5);
      const offset_rot = gs3dProplist.indexOf('rot_0')        
      let getRot = (index)=>{
          return f32[index+offset_rot] ; 
      }
      for (let j = 0; j < numPoints; j++) {
      qua[4 * j + 0] = getRot(j * pointAttribute.numElements + 0)   
      qua[4 * j + 1] = getRot(j * pointAttribute.numElements + 1) 
      qua[4 * j + 2] = getRot(j * pointAttribute.numElements + 2) 
          qua[4 * j + 2] = getRot(j * pointAttribute.numElements + 3) 
      }
      attributeBuffers['qua'] = { buffer: buff5, attribute: pointAttribute }; */

      //compute cov:
      var buff3 = new ArrayBuffer(numPoints * 24);
      var covs = new Float32Array(buff3);
      var offset_scale = gs3dProplist.indexOf('scale_0'); //第49个数开始是      
      var offset_rot = gs3dProplist.indexOf('rot_0');
      var _scale2 = new Vector3();
      var quaternion = new Quaternion();
      var getScale = index => {
        var get = offset => {
          return Math.exp(_f[index * pointAttribute.numElements + offset + offset_scale]);
        };
        _scale2.set(get(0), get(1), get(2));
      };
      var getQuatenion = index => {
        var get = offset => {
          return _f[index * pointAttribute.numElements + offset + offset_rot];
        };
        quaternion.set(get(0), get(1), get(2), get(3));
      };
      for (var _j8 = 0; _j8 < numPoints; _j8++) {
        getScale(_j8);
        getQuatenion(_j8);
        Splat.computeCovariance(_scale2, quaternion, null, covs, 6 * _j8);
      }
      attributeBuffers['covs'] = {
        buffer: buff3,
        attribute: pointAttribute
      };

      ////////////////////////////////////////////////////////////////////////////////    
    } else {
      var _buff8 = new ArrayBuffer(numPoints * 4);
      var _f2 = new Float32Array(_buff8);
      var TypedArray = typedArrayMapping[pointAttribute.type.name];
      preciseBuffer = new TypedArray(numPoints);
      var [min, max] = [Infinity, -Infinity];
      var [_offset, _scale3] = [0, 1];
      var getterMap = {
        "int8": view.getInt8,
        "int16": view.getInt16,
        "int32": view.getInt32,
        "int64": view.getInt64,
        "uint8": view.getUint8,
        "uint16": view.getUint16,
        "uint32": view.getUint32,
        "uint64": view.getUint64,
        "float": view.getFloat32,
        "double": view.getFloat64
      };
      var _getter = getterMap[pointAttribute.type.name].bind(view);

      // compute offset and scale to pack larger types into 32 bit floats
      if (pointAttribute.type.size > 4) {
        for (var _j9 = 0; _j9 < numPoints; _j9++) {
          var _value = _getter(inOffset + _j9 * pointAttributes.byteSize, true);
          if (!Number.isNaN(_value)) {
            min = Math.min(min, _value);
            max = Math.max(max, _value);
          }
        }
        if (pointAttribute.initialRange != null) {
          _offset = pointAttribute.initialRange[0];
          _scale3 = 1 / (pointAttribute.initialRange[1] - pointAttribute.initialRange[0]);
        } else {
          _offset = min;
          _scale3 = 1 / (max - min);
        }
      }
      for (var _j10 = 0; _j10 < numPoints; _j10++) {
        var _value2 = _getter(inOffset + _j10 * pointAttributes.byteSize, true);
        if (!Number.isNaN(_value2)) {
          min = Math.min(min, _value2);
          max = Math.max(max, _value2);
        }
        _f2[_j10] = (_value2 - _offset) * _scale3;
        preciseBuffer[_j10] = _value2;
      }
      pointAttribute.range = [min, max];
      attributeBuffers[pointAttribute.name] = {
        buffer: _buff8,
        preciseBuffer: preciseBuffer,
        attribute: pointAttribute,
        offset: _offset,
        scale: _scale3
      };
    }
    inOffset += pointAttribute.byteSize;
  };
  for (var pointAttribute of pointAttributes.attributes) {
    _loop(pointAttribute);
  }
  {
    // add indices
    var buff = new ArrayBuffer(numPoints * 4);
    var indices = new Uint32Array(buff);
    for (var i = 0; i < numPoints; i++) {
      indices[i] = i;
    }
    attributeBuffers["INDICES"] = {
      buffer: buff,
      attribute: PointAttribute.INDICES
    };
  }
  {
    // handle attribute vectors
    var vectors = pointAttributes.vectors;
    for (var vector of vectors) {
      var {
        name: _name,
        attributes
      } = vector;
      var numVectorElements = attributes.length;
      var _buffer = new ArrayBuffer(numVectorElements * numPoints * 4);
      var f32 = new Float32Array(_buffer);
      var iElement = 0;
      for (var sourceName of attributes) {
        var sourceBuffer = attributeBuffers[sourceName];
        var {
          offset,
          scale: _scale
        } = sourceBuffer;
        var _view = new DataView(sourceBuffer.buffer);
        var getter = _view.getFloat32.bind(_view);
        for (var j = 0; j < numPoints; j++) {
          var value = getter(j * 4, true);
          f32[j * numVectorElements + iElement] = value / _scale + offset;
        }
        iElement++;
      }
      var vecAttribute = new PointAttribute(_name, PointAttributeTypes.DATA_TYPE_FLOAT, 3);
      attributeBuffers[_name] = {
        buffer: _buffer,
        attribute: vecAttribute
      };
    }
  }
  performance.mark("binary-decoder-end");

  // { // print timings
  // 	//performance.measure("spacing", "spacing-start", "spacing-end");
  // 	performance.measure("binary-decoder", "binary-decoder-start", "binary-decoder-end");
  // 	let measure = performance.getEntriesByType("measure")[0];
  // 	let dpp = 1000 * measure.duration / numPoints;
  // 	let pps = parseInt(numPoints / (measure.duration / 1000));
  // 	let debugMessage = `${measure.duration.toFixed(3)} ms, ${numPoints} points, ${pps.toLocaleString()} points/sec`;
  // 	console.log(debugMessage);
  // }

  performance.clearMarks();
  performance.clearMeasures();
  var message = {
    buffer: buffer,
    mean: mean,
    attributeBuffers: attributeBuffers,
    tightBoundingBox: {
      min: tightBoxMin,
      max: tightBoxMax
    }
  };
  var transferables = [];
  for (var property in message.attributeBuffers) {
    transferables.push(message.attributeBuffers[property].buffer);
  }
  transferables.push(buffer);
  postMessage(message, transferables);
};