var BABYLON;!(function(e){var t;!(function(e){e[e.AUTO=0]="AUTO",e[e.PASS_THROUGH=1]="PASS_THROUGH",e[e.FORCE_RIGHT_HANDED=2]="FORCE_RIGHT_HANDED"})(t=e.GLTFLoaderCoordinateSystemMode||(e.GLTFLoaderCoordinateSystemMode={}));var r=(function(){function e(){this.coordinateSystemMode=t.AUTO,this.name="gltf",this.extensions={".gltf":{isBinary:!1},".glb":{isBinary:!0}}}return e.prototype.dispose=function(){this._loader&&(this._loader.dispose(),this._loader=null)},e.prototype.importMeshAsync=function(t,r,n,o,a,i,s){var l=e._parse(n,s);l&&(this.onParsed&&this.onParsed(l),this._loader=this._getLoader(l,s),this._loader&&this._loader.importMeshAsync(t,r,l,o,a,i,s))},e.prototype.loadAsync=function(t,r,n,o,a,i){var s=e._parse(r,i);if(s&&(this.onParsed&&this.onParsed(s),this._loader=this._getLoader(s,i),this._loader))return this._loader.loadAsync(t,s,n,o,a,i)},e.prototype.canDirectLoad=function(e){return e.indexOf("scene")!==-1&&e.indexOf("node")!==-1},e._parse=function(t,r){try{return t instanceof 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BABYLON;!(function(e){!(function(e){!(function(e){e[e.BYTE=5120]="BYTE",e[e.UNSIGNED_BYTE=5121]="UNSIGNED_BYTE",e[e.SHORT=5122]="SHORT",e[e.UNSIGNED_SHORT=5123]="UNSIGNED_SHORT",e[e.FLOAT=5126]="FLOAT"})(e.EComponentType||(e.EComponentType={}));!(function(e){e[e.FRAGMENT=35632]="FRAGMENT",e[e.VERTEX=35633]="VERTEX"})(e.EShaderType||(e.EShaderType={}));!(function(e){e[e.BYTE=5120]="BYTE",e[e.UNSIGNED_BYTE=5121]="UNSIGNED_BYTE",e[e.SHORT=5122]="SHORT",e[e.UNSIGNED_SHORT=5123]="UNSIGNED_SHORT",e[e.INT=5124]="INT",e[e.UNSIGNED_INT=5125]="UNSIGNED_INT",e[e.FLOAT=5126]="FLOAT",e[e.FLOAT_VEC2=35664]="FLOAT_VEC2",e[e.FLOAT_VEC3=35665]="FLOAT_VEC3",e[e.FLOAT_VEC4=35666]="FLOAT_VEC4",e[e.INT_VEC2=35667]="INT_VEC2",e[e.INT_VEC3=35668]="INT_VEC3",e[e.INT_VEC4=35669]="INT_VEC4",e[e.BOOL=35670]="BOOL",e[e.BOOL_VEC2=35671]="BOOL_VEC2",e[e.BOOL_VEC3=35672]="BOOL_VEC3",e[e.BOOL_VEC4=35673]="BOOL_VEC4",e[e.FLOAT_MAT2=35674]="FLOAT_MAT2",e[e.FLOAT_MAT3=35675]="FLOAT_MAT3",e[e.FLOAT_MAT4=35676]="FLOAT_MAT4",e[e.SAMPLER_2D=35678]="SAMPLER_2D"})(e.EParameterType||(e.EParameterType={}));!(function(e){e[e.CLAMP_TO_EDGE=33071]="CLAMP_TO_EDGE",e[e.MIRRORED_REPEAT=33648]="MIRRORED_REPEAT",e[e.REPEAT=10497]="REPEAT"})(e.ETextureWrapMode||(e.ETextureWrapMode={}));!(function(e){e[e.NEAREST=9728]="NEAREST",e[e.LINEAR=9728]="LINEAR",e[e.NEAREST_MIPMAP_NEAREST=9984]="NEAREST_MIPMAP_NEAREST",e[e.LINEAR_MIPMAP_NEAREST=9985]="LINEAR_MIPMAP_NEAREST",e[e.NEAREST_MIPMAP_LINEAR=9986]="NEAREST_MIPMAP_LINEAR",e[e.LINEAR_MIPMAP_LINEAR=9987]="LINEAR_MIPMAP_LINEAR"})(e.ETextureFilterType||(e.ETextureFilterType={}));!(function(e){e[e.ALPHA=6406]="ALPHA",e[e.RGB=6407]="RGB",e[e.RGBA=6408]="RGBA",e[e.LUMINANCE=6409]="LUMINANCE",e[e.LUMINANCE_ALPHA=6410]="LUMINANCE_ALPHA"})(e.ETextureFormat||(e.ETextureFormat={}));!(function(e){e[e.FRONT=1028]="FRONT",e[e.BACK=1029]="BACK",e[e.FRONT_AND_BACK=1032]="FRONT_AND_BACK"})(e.ECullingType||(e.ECullingType={}));!(function(e){e[e.ZERO=0]="ZERO",e[e.ONE=1]="ONE",e[e.SRC_COLOR=768]="SRC_COLOR",e[e.ONE_MINUS_SRC_COLOR=769]="ONE_MINUS_SRC_COLOR",e[e.DST_COLOR=774]="DST_COLOR",e[e.ONE_MINUS_DST_COLOR=775]="ONE_MINUS_DST_COLOR",e[e.SRC_ALPHA=770]="SRC_ALPHA",e[e.ONE_MINUS_SRC_ALPHA=771]="ONE_MINUS_SRC_ALPHA",e[e.DST_ALPHA=772]="DST_ALPHA",e[e.ONE_MINUS_DST_ALPHA=773]="ONE_MINUS_DST_ALPHA",e[e.CONSTANT_COLOR=32769]="CONSTANT_COLOR",e[e.ONE_MINUS_CONSTANT_COLOR=32770]="ONE_MINUS_CONSTANT_COLOR",e[e.CONSTANT_ALPHA=32771]="CONSTANT_ALPHA",e[e.ONE_MINUS_CONSTANT_ALPHA=32772]="ONE_MINUS_CONSTANT_ALPHA",e[e.SRC_ALPHA_SATURATE=776]="SRC_ALPHA_SATURATE"})(e.EBlendingFunction||(e.EBlendingFunction={}))})(e.GLTF1||(e.GLTF1={}))})(BABYLON||(BABYLON={}));var BABYLON;!(function(e){!(function(t){var r;!(function(e){e[e.IDENTIFIER=1]="IDENTIFIER",e[e.UNKNOWN=2]="UNKNOWN",e[e.END_OF_INPUT=3]="END_OF_INPUT"})(r||(r={}));var n=(function(){function e(e){this._pos=0,this.isLetterOrDigitPattern=/^[a-zA-Z0-9]+$/,this._toParse=e,this._maxPos=e.length}return e.prototype.getNextToken=function(){if(this.isEnd())return r.END_OF_INPUT;if(this.currentString=this.read(),this.currentToken=r.UNKNOWN,"_"===this.currentString||this.isLetterOrDigitPattern.test(this.currentString))for(this.currentToken=r.IDENTIFIER,this.currentIdentifier=this.currentString;!this.isEnd()&&(this.isLetterOrDigitPattern.test(this.currentString=this.peek())||"_"===this.currentString);)this.currentIdentifier+=this.currentString,this.forward();return this.currentToken},e.prototype.peek=function(){return this._toParse[this._pos]},e.prototype.read=function(){return this._toParse[this._pos++]},e.prototype.forward=function(){this._pos++},e.prototype.isEnd=function(){return 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o=r.animations[n],a=null,l=0;l<o.channels.length;l++){var u=o.channels[l],c=o.samplers[u.sampler];if(c){var f=null,d=null;o.parameters?(f=o.parameters[c.input],d=o.parameters[c.output]):(f=c.input,d=c.output);var h=t.GLTFUtils.GetBufferFromAccessor(r,r.accessors[f]),T=t.GLTFUtils.GetBufferFromAccessor(r,r.accessors[d]),p=u.target.id,_=r.scene.getNodeByID(p);if(null===_&&(_=r.scene.getNodeByName(p)),null!==_){var E=_ instanceof e.Bone,A=u.target.path,m=i.indexOf(A);m!==-1&&(A=s[m]);var y=e.Animation.ANIMATIONTYPE_MATRIX;E||("rotationQuaternion"===A?(y=e.Animation.ANIMATIONTYPE_QUATERNION,_.rotationQuaternion=new e.Quaternion):y=e.Animation.ANIMATIONTYPE_VECTOR3);var g=null,v=[],L=0,b=!1;E&&a&&a.getKeys().length===h.length&&(g=a,b=!0),b||(g=new e.Animation(n,E?"_matrix":A,1,y,e.Animation.ANIMATIONLOOPMODE_CYCLE));for(var N=0;N<h.length;N++){var x=null;if("rotationQuaternion"===A?(x=e.Quaternion.FromArray([T[L],T[L+1],T[L+2],T[L+3]]),L+=4):(x=e.Vector3.FromArray([T[L],T[L+1],T[L+2]]),L+=3),E){var M=_,O=e.Vector3.Zero(),F=new e.Quaternion,R=e.Vector3.Zero(),S=M.getBaseMatrix();b&&(S=a.getKeys()[N].value),S.decompose(R,F,O),"position"===A?O=x:"rotationQuaternion"===A?F=x:R=x,x=e.Matrix.Compose(R,F,O)}b?a.getKeys()[N].value=x:v.push({frame:h[N],value:x})}b||(g.setKeys(v),_.animations.push(g)),a=g,r.scene.stopAnimation(_),r.scene.beginAnimation(_,0,h[h.length-1],!0,1)}else e.Tools.Warn("Creating animation named "+n+". 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r=0;r<e.jointNames.length;r++)if(e.jointNames[r]===t)return!0;return!1},m=function(t,r,n,o){for(var a in t.nodes){var i=t.nodes[a],s=a;if(i.jointName&&!A(n,i.jointName)){var l=T(i),u=new e.Bone(i.name,r,null,l);u.id=s,o.push({bone:u,node:i,id:s})}}for(var c=0;c<o.length;c++)for(var f=o[c],d=f.node.children,h=0;h<d.length;h++){for(var p=null,_=0;_<o.length;_++)if(o[_].id===d[h]){p=o[_];break}p&&(p.bone._parent=f.bone,f.bone.children.push(p.bone))}},y=function(t,r,n,o,a){if(o||(o=new e.Skeleton(r.name,"",t.scene)),!r.babylonSkeleton)return o;var i=[],s=[];m(t,o,r,i),o.bones=[];for(var l=0;l<r.jointNames.length;l++){var u=E(t,r.jointNames[l]),c=u.node;if(c){var a=u.id,f=t.scene.getBoneByID(a);if(f)o.bones.push(f);else{for(var d=!1,h=null,A=0;A<l;A++){var y=E(t,r.jointNames[A]).node;if(y){var g=y.children;if(g){d=!1;for(var v=0;v<g.length;v++)if(g[v]===a){h=p(t,r,r.jointNames[A],o),d=!0;break}if(d)break}}else e.Tools.Warn("Joint named "+r.jointNames[A]+" does not exist when looking for 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Float32Array(L.length),m.normals.set(L);else if("POSITION"===b){if(e.GLTFFileLoader.HomogeneousCoordinates){m.positions=new Float32Array(L.length-L.length/4);for(var N=0;N<L.length;N+=4)m.positions[N]=L[N],m.positions[N+1]=L[N+1],m.positions[N+2]=L[N+2]}else m.positions=new Float32Array(L.length),m.positions.set(L);d.push(m.positions.length)}else if(b.indexOf("TEXCOORD_")!==-1){var x=Number(b.split("_")[1]),M=e.VertexBuffer.UVKind+(0===x?"":x+1),O=new Float32Array(L.length);O.set(L),f(O),m.set(O,M)}else"JOINT"===b?(m.matricesIndices=new Float32Array(L.length),m.matricesIndices.set(L)):"WEIGHT"===b?(m.matricesWeights=new Float32Array(L.length),m.matricesWeights.set(L)):"COLOR"===b&&(m.colors=new Float32Array(L.length),m.colors.set(L));if(v=r.accessors[y.indices])L=t.GLTFUtils.GetBufferFromAccessor(r,v),m.indices=new Int32Array(L.length),m.indices.set(L),T.push(m.indices.length);else{for(var F=[],N=0;N<m.positions.length/3;N++)F.push(N);m.indices=new Int32Array(F),T.push(m.indices.length)}l.merge(m),m=void 0;var R=r.scene.getMaterialByID(y.material);s.subMaterials.push(null===R?t.GLTFUtils.GetDefaultMaterial(r.scene):R),c.push(0===c.length?0:c[c.length-1]+d[d.length-2]),h.push(0===h.length?0:h[h.length-1]+T[T.length-2])}}u.setAllVerticesData(l,!1),i.computeWorldMatrix(!0),i.subMeshes=[];for(var S=0,p=0;p<o.length;p++){var _=o[p],E=r.meshes[_];if(E)for(var A=0;A<E.primitives.length;A++)E.primitives[A].mode,e.SubMesh.AddToMesh(S,c[S],d[S],h[S],T[S],i,i,!0),S++}return i},v=function(e,t,r,n){e.position&&(e.position=t),(e.rotationQuaternion||e.rotation)&&(e.rotationQuaternion=r),e.scaling&&(e.scaling=n)},L=function(t,r,n){if(r.matrix){var o=new e.Vector3(0,0,0),a=new e.Quaternion,i=new e.Vector3(0,0,0);e.Matrix.FromArray(r.matrix).decompose(i,a,o),v(t,o,a,i)}else v(t,e.Vector3.FromArray(r.translation),e.Quaternion.FromArray(r.rotation),e.Vector3.FromArray(r.scale));t.computeWorldMatrix(!0)},b=function(t,r,n,o){var a=null;if(t.importOnlyMeshes&&(r.skin||r.meshes)&&t.importMeshesNames.length>0&&t.importMeshesNames.indexOf(r.name)===-1)return null;if(r.skin){if(r.meshes){var i=t.skins[r.skin],s=g(t,r,r.meshes,n,r.babylonNode);s.skeleton=t.scene.getLastSkeletonByID(r.skin),null===s.skeleton&&(s.skeleton=y(t,i,0,i.babylonSkeleton,r.skin),i.babylonSkeleton||(i.babylonSkeleton=s.skeleton)),a=s}}else if(r.meshes){var s=g(t,r,r.mesh?[r.mesh]:r.meshes,n,r.babylonNode);a=s}else if(!r.light||r.babylonNode||t.importOnlyMeshes){if(r.camera&&!r.babylonNode&&!t.importOnlyMeshes){var l=t.cameras[r.camera];if(l)if("orthographic"===l.type){var u=new e.FreeCamera(r.camera,e.Vector3.Zero(),t.scene);u.name=r.name,u.mode=e.Camera.ORTHOGRAPHIC_CAMERA,u.attachControl(t.scene.getEngine().getRenderingCanvas()),a=u}else if("perspective"===l.type){var c=l[l.type],f=new e.FreeCamera(r.camera,e.Vector3.Zero(),t.scene);f.name=r.name,f.attachControl(t.scene.getEngine().getRenderingCanvas()),c.aspectRatio||(c.aspectRatio=t.scene.getEngine().getRenderWidth()/t.scene.getEngine().getRenderHeight()),c.znear&&c.zfar&&(f.maxZ=c.zfar,f.minZ=c.znear),a=f}}}else{var d=t.lights[r.light];if(d)if("ambient"===d.type){var h=d[d.type],T=new e.HemisphericLight(r.light,e.Vector3.Zero(),t.scene);T.name=r.name,h.color&&(T.diffuse=e.Color3.FromArray(h.color)),a=T}else if("directional"===d.type){var p=d[d.type],_=new e.DirectionalLight(r.light,e.Vector3.Zero(),t.scene);_.name=r.name,p.color&&(_.diffuse=e.Color3.FromArray(p.color)),a=_}else if("point"===d.type){var E=d[d.type],A=new e.PointLight(r.light,e.Vector3.Zero(),t.scene);A.name=r.name,E.color&&(A.diffuse=e.Color3.FromArray(E.color)),a=A}else if("spot"===d.type){var m=d[d.type],b=new e.SpotLight(r.light,e.Vector3.Zero(),e.Vector3.Zero(),0,0,t.scene);b.name=r.name,m.color&&(b.diffuse=e.Color3.FromArray(m.color)),m.fallOfAngle&&(b.angle=m.fallOfAngle),m.fallOffExponent&&(b.exponent=m.fallOffExponent),a=b}}if(!r.jointName){if(r.babylonNode)return r.babylonNode;if(null===a){var N=new e.Mesh(r.name,t.scene);r.babylonNode=N,a=N}}if(null!==a){if(r.matrix&&a instanceof e.Mesh)L(a,r);else{var x=r.translation||[0,0,0],M=r.rotation||[0,0,0,1],O=r.scale||[1,1,1];v(a,e.Vector3.FromArray(x),e.Quaternion.FromArray(M),e.Vector3.FromArray(O))}a.updateCache(!0),r.babylonNode=a}return a},N=function(e,t,r,n){var o=e.nodes[t],a=null;if(n=!(e.importOnlyMeshes&&!n)||(e.importMeshesNames.indexOf(o.name)!==-1||0===e.importMeshesNames.length),!o.jointName&&n&&null!==(a=b(e,o,t))&&(a.id=t,a.parent=r),o.children)for(var i=0;i<o.children.length;i++)N(e,o.children[i],a,n)},x=function(e){var t=e.currentScene;if(t)for(var r=0;r<t.nodes.length;r++)N(e,t.nodes[r],null);else for(var n in 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B=(function(){function r(){}return r.RegisterExtension=function(t){if(r.Extensions[t.name])return void e.Tools.Error('Tool with the same name "'+t.name+'" already exists');r.Extensions[t.name]=t},r.prototype.dispose=function(){},r.prototype.importMeshAsync=function(r,n,o,a,i,s,l){var u=this;return n.useRightHandedSystem=!0,t.GLTFLoaderExtension.LoadRuntimeAsync(n,o,a,(function(t){t.importOnlyMeshes=!0,""===r?t.importMeshesNames=[]:"string"==typeof r?t.importMeshesNames=[r]:!r||r instanceof Array?(t.importMeshesNames=[],e.Tools.Warn("Argument meshesNames must be of type string or string[]")):t.importMeshesNames=[r],u._createNodes(t);var n=new Array,o=new Array;for(var a in t.nodes){var l=t.nodes[a];l.babylonNode instanceof e.AbstractMesh&&n.push(l.babylonNode)}for(var c in t.skins){var f=t.skins[c];f.babylonSkeleton instanceof 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e.loadBufferAsync(r,n,o,a,i)}),(function(){e.GLTFLoaderBase.LoadBufferAsync(r,n,o,a,i)}))},t.LoadTextureAsync=function(e,r,n,o){t.LoadTextureBufferAsync(e,r,(function(a){return t.CreateTextureAsync(e,r,a,n,o)}),o)},t.LoadShaderStringAsync=function(r,n,o,a){t.ApplyExtensions((function(e){return e.loadShaderStringAsync(r,n,o,a)}),(function(){e.GLTFLoaderBase.LoadShaderStringAsync(r,n,o,a)}))},t.LoadMaterialAsync=function(r,n,o,a){t.ApplyExtensions((function(e){return e.loadMaterialAsync(r,n,o,a)}),(function(){e.GLTFLoaderBase.LoadMaterialAsync(r,n,o,a)}))},t.LoadTextureBufferAsync=function(r,n,o,a){t.ApplyExtensions((function(e){return e.loadTextureBufferAsync(r,n,o,a)}),(function(){e.GLTFLoaderBase.LoadTextureBufferAsync(r,n,o,a)}))},t.CreateTextureAsync=function(r,n,o,a,i){t.ApplyExtensions((function(e){return e.createTextureAsync(r,n,o,a,i)}),(function(){e.GLTFLoaderBase.CreateTextureAsync(r,n,o,a,i)}))},t.ApplyExtensions=function(t,r){for(var n in e.GLTFLoader.Extensions){if(t(e.GLTFLoader.Extensions[n]))return}r()},t})();e.GLTFLoaderExtension=t})(e.GLTF1||(e.GLTF1={}))})(BABYLON||(BABYLON={}));var __extends=this&&this.__extends||(function(){var e=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var r in t)t.hasOwnProperty(r)&&(e[r]=t[r])};return function(t,r){function n(){this.constructor=t}e(t,r),t.prototype=null===r?Object.create(r):(n.prototype=r.prototype,new n)}})(),BABYLON;!(function(e){!(function(e){var t=(function(t){function r(){return t.call(this,"KHR_binary_glTF")||this}return __extends(r,t),r.prototype.loadRuntimeAsync=function(t,r,n,o,a){var i=r.json.extensionsUsed;return!(!i||i.indexOf(this.name)===-1)&&(this._bin=r.bin,o(e.GLTFLoaderBase.CreateRuntime(r.json,t,n)),!0)},r.prototype.loadBufferAsync=function(e,t,r,n){return e.extensionsUsed.indexOf(this.name)!==-1&&("binary_glTF"===t&&(r(this._bin),!0))},r.prototype.loadTextureBufferAsync=function(t,r,n,o){var a=t.textures[r],i=t.images[a.source];if(!(i.extensions&&this.name in i.extensions))return!1;var s=i.extensions[this.name],l=t.bufferViews[s.bufferView];return n(e.GLTFUtils.GetBufferFromBufferView(t,l,0,l.byteLength,e.EComponentType.UNSIGNED_BYTE)),!0},r.prototype.loadShaderStringAsync=function(t,r,n,o){var a=t.shaders[r];if(!(a.extensions&&this.name in a.extensions))return!1;var i=a.extensions[this.name],s=t.bufferViews[i.bufferView],l=e.GLTFUtils.GetBufferFromBufferView(t,s,0,s.byteLength,e.EComponentType.UNSIGNED_BYTE);return setTimeout((function(){var t=e.GLTFUtils.DecodeBufferToText(l);n(t)})),!0},r})(e.GLTFLoaderExtension);e.GLTFBinaryExtension=t,e.GLTFLoader.RegisterExtension(new t)})(e.GLTF1||(e.GLTF1={}))})(BABYLON||(BABYLON={}));var __extends=this&&this.__extends||(function(){var e=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var r in t)t.hasOwnProperty(r)&&(e[r]=t[r])};return function(t,r){function n(){this.constructor=t}e(t,r),t.prototype=null===r?Object.create(r):(n.prototype=r.prototype,new n)}})(),BABYLON;!(function(e){!(function(t){var r=(function(r){function n(){return r.call(this,"KHR_materials_common")||this}return __extends(n,r),n.prototype.loadRuntimeExtensionsAsync=function(t,r,n){if(!t.extensions)return!1;var o=t.extensions[this.name];if(!o)return!1;var a=o.lights;if(a)for(var i in a){var s=a[i];switch(s.type){case"ambient":var l=new e.HemisphericLight(s.name,new e.Vector3(0,1,0),t.scene),u=s.ambient;l.diffuse=e.Color3.FromArray(u.color||[1,1,1]);break;case"point":var c=new e.PointLight(s.name,new e.Vector3(10,10,10),t.scene),f=s.point;c.diffuse=e.Color3.FromArray(f.color||[1,1,1]);break;case"directional":var d=new e.DirectionalLight(s.name,new e.Vector3(0,-1,0),t.scene),h=s.directional;d.diffuse=e.Color3.FromArray(h.color||[1,1,1]);break;case"spot":var T=s.spot,p=new e.SpotLight(s.name,new e.Vector3(0,10,0),new e.Vector3(0,-1,0),s.spot.fallOffAngle||Math.PI,s.spot.fallOffExponent||0,t.scene);p.diffuse=e.Color3.FromArray(T.color||[1,1,1]);break;default:e.Tools.Warn('GLTF Material Common extension: light type "'+s.type+"” not supported")}}return!1},n.prototype.loadMaterialAsync=function(t,r,n,o){var a=t.materials[r];if(!a||!a.extensions)return!1;var i=a.extensions[this.name];if(!i)return!1;var s=new e.StandardMaterial(r,t.scene);return s.sideOrientation=e.Material.CounterClockWiseSideOrientation,"CONSTANT"===i.technique&&(s.disableLighting=!0),s.backFaceCulling=void 0!==i.doubleSided&&!i.doubleSided,s.alpha=void 0===i.values.transparency?1:i.values.transparency,s.specularPower=void 0===i.values.shininess?0:i.values.shininess,"string"==typeof i.values.ambient?this._loadTexture(t,i.values.ambient,s,"ambientTexture",o):s.ambientColor=e.Color3.FromArray(i.values.ambient||[0,0,0]),"string"==typeof i.values.diffuse?this._loadTexture(t,i.values.diffuse,s,"diffuseTexture",o):s.diffuseColor=e.Color3.FromArray(i.values.diffuse||[0,0,0]),"string"==typeof i.values.emission?this._loadTexture(t,i.values.emission,s,"emissiveTexture",o):s.emissiveColor=e.Color3.FromArray(i.values.emission||[0,0,0]),"string"==typeof i.values.specular?this._loadTexture(t,i.values.specular,s,"specularTexture",o):s.specularColor=e.Color3.FromArray(i.values.specular||[0,0,0]),!0},n.prototype._loadTexture=function(e,r,n,o,a){t.GLTFLoaderBase.LoadTextureBufferAsync(e,r,(function(i){t.GLTFLoaderBase.CreateTextureAsync(e,r,i,(function(e){return n[o]=e}),a)}),a)},n})(t.GLTFLoaderExtension);t.GLTFMaterialsCommonExtension=r,t.GLTFLoader.RegisterExtension(new r)})(e.GLTF1||(e.GLTF1={}))})(BABYLON||(BABYLON={}));var BABYLON;!(function(e){!(function(e){!(function(e){e[e.BYTE=5120]="BYTE",e[e.UNSIGNED_BYTE=5121]="UNSIGNED_BYTE",e[e.SHORT=5122]="SHORT",e[e.UNSIGNED_SHORT=5123]="UNSIGNED_SHORT",e[e.UNSIGNED_INT=5125]="UNSIGNED_INT",e[e.FLOAT=5126]="FLOAT"})(e.EComponentType||(e.EComponentType={}));!(function(e){e[e.POINTS=0]="POINTS",e[e.LINES=1]="LINES",e[e.LINE_LOOP=2]="LINE_LOOP",e[e.LINE_STRIP=3]="LINE_STRIP",e[e.TRIANGLES=4]="TRIANGLES",e[e.TRIANGLE_STRIP=5]="TRIANGLE_STRIP",e[e.TRIANGLE_FAN=6]="TRIANGLE_FAN"})(e.EMeshPrimitiveMode||(e.EMeshPrimitiveMode={}));!(function(e){e[e.NEAREST=9728]="NEAREST",e[e.LINEAR=9729]="LINEAR"})(e.ETextureMagFilter||(e.ETextureMagFilter={}));!(function(e){e[e.NEAREST=9728]="NEAREST",e[e.LINEAR=9729]="LINEAR",e[e.NEAREST_MIPMAP_NEAREST=9984]="NEAREST_MIPMAP_NEAREST",e[e.LINEAR_MIPMAP_NEAREST=9985]="LINEAR_MIPMAP_NEAREST",e[e.NEAREST_MIPMAP_LINEAR=9986]="NEAREST_MIPMAP_LINEAR",e[e.LINEAR_MIPMAP_LINEAR=9987]="LINEAR_MIPMAP_LINEAR"})(e.ETextureMinFilter||(e.ETextureMinFilter={}));!(function(e){e[e.CLAMP_TO_EDGE=33071]="CLAMP_TO_EDGE",e[e.MIRRORED_REPEAT=33648]="MIRRORED_REPEAT",e[e.REPEAT=10497]="REPEAT"})(e.ETextureWrapMode||(e.ETextureWrapMode={}))})(e.GLTF2||(e.GLTF2={}))})(BABYLON||(BABYLON={}));var BABYLON;!(function(e){!(function(t){var r=(function(){function e(e){this._pendingCount=0,this._callback=e}return e.prototype._addPendingData=function(e){this._pendingCount++},e.prototype._removePendingData=function(e){0==--this._pendingCount&&this._callback()},e})(),n=(function(){function n(t){this._disposed=!1,this._renderReady=!1,this._requests=new Array,this._renderReadyObservable=new e.Observable,this._renderPendingCount=0,this._loaderPendingCount=0,this._loaderTrackers=new Array,this._parent=t}return n.RegisterExtension=function(r){if(n.Extensions[r.name])return void e.Tools.Error("Extension with the same name '"+r.name+"' already exists");n.Extensions[r.name]=r,t.GLTFLoaderExtension._Extensions.push(r)},n.prototype.dispose=function(){if(!this._disposed){this._disposed=!0;for(var e=0,t=this._requests;e<t.length;e++){var r=t[e];r.readyState!==(XMLHttpRequest.DONE||4)&&r.abort()}if(this._gltf.textures)for(var n=0,o=this._gltf.textures;n<o.length;n++){var a=o[n];a.url&&URL.revokeObjectURL(a.url)}this._gltf=void 0,this._babylonScene=void 0,this._parent=void 0,this._rootUrl=void 0,this._defaultMaterial=void 0,this._rootNode=void 0,this._successCallback=void 0,this._progressCallback=void 0,this._errorCallback=void 0,this._renderReady=!1,this._requests=void 0,this._renderReadyObservable=void 0,this._renderPendingCount=0,this._loaderPendingCount=0,this._loaderTrackers=void 0}},n.prototype.importMeshAsync=function(e,t,r,n,o,a,i){var s=this;this._loadAsync(e,t,r,n,(function(){o(s._getMeshes(),null,s._getSkeletons())}),a,i)},n.prototype.loadAsync=function(e,t,r,n,o,a){this._loadAsync(null,e,t,r,n,o,a)},n.prototype._loadAsync=function(e,r,n,o,a,i,s){var l=this;this._tryCatchOnError((function(){l._loadData(n),l._babylonScene=r,l._rootUrl=o,l._successCallback=a,l._progressCallback=i,l._errorCallback=s,t.GLTFUtils.AssignIndices(l._gltf.accessors),t.GLTFUtils.AssignIndices(l._gltf.animations),t.GLTFUtils.AssignIndices(l._gltf.buffers),t.GLTFUtils.AssignIndices(l._gltf.bufferViews),t.GLTFUtils.AssignIndices(l._gltf.images),t.GLTFUtils.AssignIndices(l._gltf.materials),t.GLTFUtils.AssignIndices(l._gltf.meshes),t.GLTFUtils.AssignIndices(l._gltf.nodes),t.GLTFUtils.AssignIndices(l._gltf.scenes),t.GLTFUtils.AssignIndices(l._gltf.skins),t.GLTFUtils.AssignIndices(l._gltf.textures),l._addPendingData(l),l._loadDefaultScene(e),l._loadAnimations(),l._removePendingData(l)}))},n.prototype._onError=function(t){this._disposed||(e.Tools.Error("glTF Loader: "+t),this._errorCallback&&this._errorCallback(t),this.dispose())},n.prototype._onProgress=function(e){this._disposed||this._progressCallback&&this._progressCallback(e)},n.prototype._executeWhenRenderReady=function(e){this._renderReady?e():this._renderReadyObservable.add(e)},n.prototype._onRenderReady=function(){this._rootNode.babylonMesh.setEnabled(!0),this._startAnimations(),this._successCallback(),this._renderReadyObservable.notifyObservers(this)},n.prototype._onComplete=function(){this._parent.onComplete&&this._parent.onComplete(),this.dispose()},n.prototype._loadData=function(t){if(this._gltf=t.json,t.bin){var r=this._gltf.buffers;if(r&&r[0]&&!r[0].uri){var n=r[0];n.byteLength!=t.bin.byteLength&&e.Tools.Warn("Binary buffer length ("+n.byteLength+") from JSON does not match chunk length ("+t.bin.byteLength+")"),n.loadedData=t.bin}else e.Tools.Warn("Unexpected BIN chunk")}},n.prototype._getMeshes=function(){var e=[this._rootNode.babylonMesh],t=this._gltf.nodes;if(t)for(var r=0,n=t;r<n.length;r++){var o=n[r];o.babylonMesh&&e.push(o.babylonMesh)}return e},n.prototype._getSkeletons=function(){var t=new Array,r=this._gltf.skins;if(r)for(var n=0,o=r;n<o.length;n++){var a=o[n];a.babylonSkeleton instanceof e.Skeleton&&t.push(a.babylonSkeleton)}return t},n.prototype._getAnimationTargets=function(){var e=new Array,t=this._gltf.animations;if(t)for(var r=0,n=t;r<n.length;r++){var o=n[r];e.push.apply(e,o.targets)}return e},n.prototype._startAnimations=function(){for(var e=0,t=this._getAnimationTargets();e<t.length;e++){var r=t[e];this._babylonScene.beginAnimation(r,0,Number.MAX_VALUE,!0)}},n.prototype._loadDefaultScene=function(e){var r=t.GLTFUtils.GetArrayItem(this._gltf.scenes,this._gltf.scene||0);if(!r)throw new Error("Failed to find scene "+(this._gltf.scene||0));this._loadScene("#/scenes/"+r.index,r,e)},n.prototype._loadScene=function(r,n,o){switch(this._rootNode={babylonMesh:new e.Mesh("__root__",this._babylonScene)},this._parent.coordinateSystemMode){case e.GLTFLoaderCoordinateSystemMode.AUTO:this._babylonScene.useRightHandedSystem||(this._rootNode.babylonMesh.rotation=new e.Vector3(0,Math.PI,0),this._rootNode.babylonMesh.scaling=new e.Vector3(1,1,-1));break;case e.GLTFLoaderCoordinateSystemMode.PASS_THROUGH:break;case e.GLTFLoaderCoordinateSystemMode.FORCE_RIGHT_HANDED:this._babylonScene.useRightHandedSystem=!0;break;default:return void e.Tools.Error("Invalid coordinate system mode ("+this._parent.coordinateSystemMode+")")}var a=n.nodes;if(this._traverseNodes(r,a,(function(e,t){return e.parent=t,!0}),this._rootNode),o){o instanceof Array||(o=[o]);var i=new Array;this._traverseNodes(r,a,(function(e){return o.indexOf(e.name)===-1||(i.push(e.index),!1)}),this._rootNode),a=i}for(var s=0,l=a;s<l.length;s++){var u=l[s],c=t.GLTFUtils.GetArrayItem(this._gltf.nodes,u);if(!c)throw new Error(r+": Failed to find node "+u);this._loadNode("#/nodes/"+u,c)}this._rootNode.babylonMesh.setEnabled(!1)},n.prototype._loadNode=function(r,n){if(!t.GLTFLoaderExtension.LoadNode(this,r,n)){if(n.babylonMesh=new e.Mesh(n.name||"mesh"+n.index,this._babylonScene),this._loadTransform(n),null!=n.mesh){var o=t.GLTFUtils.GetArrayItem(this._gltf.meshes,n.mesh);if(!o)throw new Error(r+": Failed to find mesh "+n.mesh);this._loadMesh("#/meshes/"+n.mesh,n,o)}if(n.babylonMesh.parent=n.parent?n.parent.babylonMesh:null,n.babylonAnimationTargets=n.babylonAnimationTargets||[],n.babylonAnimationTargets.push(n.babylonMesh),null!=n.skin){var a=t.GLTFUtils.GetArrayItem(this._gltf.skins,n.skin);if(!a)throw new Error(r+": Failed to find skin "+n.skin);n.babylonMesh.skeleton=this._loadSkin("#/skins/"+n.skin,a)}if(n.camera,n.children)for(var i=0,s=n.children;i<s.length;i++){var l=s[i],u=t.GLTFUtils.GetArrayItem(this._gltf.nodes,l);if(!u)throw new Error(r+": Failed to find child node "+l);this._loadNode("#/nodes/"+l,u)}}},n.prototype._loadMesh=function(r,n,o){var a=this;n.babylonMesh.name=n.babylonMesh.name||o.name;var i=o.primitives;if(!i||0===i.length)throw new Error(r+": Primitives are missing");this._createMorphTargets(r,n,o),this._loadAllVertexDataAsync(r,o,(function(){a._loadMorphTargets(r,n,o);for(var t=new e.VertexData,s=0,l=i;s<l.length;s++){var u=l[s];t.merge(u.vertexData)}new e.Geometry(n.babylonMesh.name,a._babylonScene,t,!1,n.babylonMesh),n.babylonMesh.subMeshes=[];for(var c=0,f=0,d=0;d<i.length;d++){var h=i[d].vertexData,T=h.positions.length,p=h.indices.length;e.SubMesh.AddToMesh(d,c,T,f,p,n.babylonMesh),c+=T,f+=p}}));var s=new e.MultiMaterial(n.babylonMesh.name,this._babylonScene);n.babylonMesh.material=s;for(var l=s.subMaterials,u=this,c=0;c<i.length;c++)!(function(e){var o=i[e];if(null==o.material)l[e]=u._getDefaultMaterial();else{var s=t.GLTFUtils.GetArrayItem(u._gltf.materials,o.material);if(!s)throw new Error(r+": Failed to find material "+o.material);u._loadMaterial("#/materials/"+s.index,s,(function(t,r){r&&a._parent.onMaterialLoaded&&a._parent.onMaterialLoaded(t),a._parent.onBeforeMaterialReadyAsync?(a._addLoaderPendingData(s),a._parent.onBeforeMaterialReadyAsync(t,n.babylonMesh,null!=l[e],(function(){a._tryCatchOnError((function(){l[e]=t,a._removeLoaderPendingData(s)}))}))):l[e]=t}))}})(c)},n.prototype._loadAllVertexDataAsync=function(e,t,r){for(var n=t.primitives,o=n.length,a=this,i=0;i<n.length;i++)!(function(i){var s=n[i];a._loadVertexDataAsync(e+"/primitive/"+i,t,s,(function(e){s.vertexData=e,0==--o&&r()}))})(i)},n.prototype._loadVertexDataAsync=function(r,n,o,a){var i=this,s=o.attributes;if(!s)throw new Error(r+": Attributes are missing");if(o.mode&&o.mode!==t.EMeshPrimitiveMode.TRIANGLES)throw new Error(r+": Mode "+o.mode+" is not currently supported");var l=new e.VertexData,u=Object.keys(s).length,c=this;for(var f in s)!(function(n){var f=t.GLTFUtils.GetArrayItem(c._gltf.accessors,s[n]);if(!f)throw new Error(r+": Failed to find attribute '"+n+"' accessor "+s[n]);c._loadAccessorAsync("#/accessors/"+f.index,f,(function(s){switch(n){case"NORMAL":l.normals=s;break;case"POSITION":l.positions=s;break;case"TANGENT":l.tangents=s;break;case"TEXCOORD_0":l.uvs=s;break;case"TEXCOORD_1":l.uvs2=s;break;case"JOINTS_0":l.matricesIndices=new Float32Array(Array.prototype.slice.apply(s));break;case"WEIGHTS_0":l.matricesWeights=s;break;case"COLOR_0":l.colors=s;break;default:e.Tools.Warn("Ignoring unrecognized attribute '"+n+"'")}if(0==--u)if(null==o.indices){l.indices=new Uint32Array(l.positions.length/3);for(var c=0;c<l.indices.length;c++)l.indices[c]=c;a(l)}else{var f=t.GLTFUtils.GetArrayItem(i._gltf.accessors,o.indices);if(!f)throw new Error(r+": Failed to find indices accessor "+o.indices);i._loadAccessorAsync("#/accessors/"+f.index,f,(function(e){l.indices=e,a(l)}))}}))})(f)},n.prototype._createMorphTargets=function(t,r,n){var o=n.primitives,a=o[0].targets;if(a){for(var i=0,s=o;i<s.length;i++){var l=s[i];if(!l.targets||l.targets.length!=a.length)throw new Error(t+": All primitives are required to list the same number of targets")}var u=new e.MorphTargetManager;r.babylonMesh.morphTargetManager=u;for(var c=0;c<a.length;c++){var f=r.weights?r.weights[c]:n.weights?n.weights[c]:0;u.addTarget(new e.MorphTarget("morphTarget"+c,f))}}},n.prototype._loadMorphTargets=function(t,r,n){var o=r.babylonMesh.morphTargetManager;o&&this._loadAllMorphTargetVertexDataAsync(t,r,n,(function(){for(var t=o.numTargets,r=0;r<t;r++){for(var a=new e.VertexData,i=0,s=n.primitives;i<s.length;i++){var l=s[i];a.merge(l.targetsVertexData[r],{tangentLength:3})}var u=o.getTarget(r);u.setNormals(a.normals),u.setPositions(a.positions),u.setTangents(a.tangents)}}))},n.prototype._loadAllMorphTargetVertexDataAsync=function(e,t,r,n){for(var o=r.primitives.length*t.babylonMesh.morphTargetManager.numTargets,a=this,i=0,s=r.primitives;i<s.length;i++){var l=s[i];!(function(t){var r=t.targets;t.targetsVertexData=new Array(r.length);for(var i=0;i<r.length;i++)!(function(i){a._loadMorphTargetVertexDataAsync(e+"/targets/"+i,t.vertexData,r[i],(function(e){t.targetsVertexData[i]=e,0==--o&&n()}))})(i)})(l)}},n.prototype._loadMorphTargetVertexDataAsync=function(r,n,o,a){var i=new e.VertexData,s=Object.keys(o).length,l=this;for(var u in o)!(function(u){var c=t.GLTFUtils.GetArrayItem(l._gltf.accessors,o[u]);if(!c)throw new Error(r+": Failed to find attribute '"+u+"' accessor "+o[u]);l._loadAccessorAsync("#/accessors/"+c.index,c,(function(t){var r=t;switch(u){case"NORMAL":for(var o=0;o<r.length;o++)r[o]+=n.normals[o];i.normals=r;break;case"POSITION":for(var o=0;o<r.length;o++)r[o]+=n.positions[o];i.positions=r;break;case"TANGENT":for(var o=0,l=0;o<r.length;o++,l++)r[o]+=n.tangents[l],(o+1)%3==0&&l++;i.tangents=r;break;default:e.Tools.Warn("Ignoring unrecognized attribute '"+u+"'")}0==--s&&a(i)}))})(u)},n.prototype._loadTransform=function(t){var r=e.Vector3.Zero(),n=e.Quaternion.Identity(),o=e.Vector3.One();if(t.matrix){e.Matrix.FromArray(t.matrix).decompose(o,n,r)}else t.translation&&(r=e.Vector3.FromArray(t.translation)),t.rotation&&(n=e.Quaternion.FromArray(t.rotation)),t.scale&&(o=e.Vector3.FromArray(t.scale));t.babylonMesh.position=r,t.babylonMesh.rotationQuaternion=n,t.babylonMesh.scaling=o},n.prototype._loadSkin=function(r,n){var o=this,a="skeleton"+n.index;if(n.babylonSkeleton=new e.Skeleton(n.name||a,a,this._babylonScene),null==n.inverseBindMatrices)this._loadBones(r,n,null);else{var i=t.GLTFUtils.GetArrayItem(this._gltf.accessors,n.inverseBindMatrices);if(!i)throw new Error(r+": Failed to find inverse bind matrices attribute "+n.inverseBindMatrices);this._loadAccessorAsync("#/accessors/"+i.index,i,(function(e){o._loadBones(r,n,e)}))}return n.babylonSkeleton},n.prototype._createBone=function(t,r,n,o,a,i){var s=new e.Bone(t.name||"bone"+t.index,r.babylonSkeleton,n,o,null,a,i);return t.babylonBones=t.babylonBones||{},t.babylonBones[r.index]=s,t.babylonAnimationTargets=t.babylonAnimationTargets||[],t.babylonAnimationTargets.push(s),s},n.prototype._loadBones=function(e,r,n){for(var o={},a=0,i=r.joints;a<i.length;a++){var s=i[a],l=t.GLTFUtils.GetArrayItem(this._gltf.nodes,s);if(!l)throw new Error(e+": Failed to find joint "+s);this._loadBone(l,r,n,o)}},n.prototype._loadBone=function(t,r,n,o){var a=o[t.index];if(a)return a;var i=r.joints.indexOf(t.index),s=e.Matrix.Identity();n&&i!==-1&&(s=e.Matrix.FromArray(n,16*i),s.invertToRef(s));var l;return t.index!==r.skeleton&&t.parent!==this._rootNode&&(l=this._loadBone(t.parent,r,n,o),s.multiplyToRef(l.getInvertedAbsoluteTransform(),s)),a=this._createBone(t,r,l,this._getNodeMatrix(t),s,i),o[t.index]=a,a},n.prototype._getNodeMatrix=function(t){return t.matrix?e.Matrix.FromArray(t.matrix):e.Matrix.Compose(t.scale?e.Vector3.FromArray(t.scale):e.Vector3.One(),t.rotation?e.Quaternion.FromArray(t.rotation):e.Quaternion.Identity(),t.translation?e.Vector3.FromArray(t.translation):e.Vector3.Zero())},n.prototype._traverseNodes=function(e,r,n,o){void 0===o&&(o=null);for(var a=0,i=r;a<i.length;a++){var s=i[a],l=t.GLTFUtils.GetArrayItem(this._gltf.nodes,s);if(!l)throw new Error(e+": Failed to find node "+s);this._traverseNode(e,l,n,o)}},n.prototype._traverseNode=function(e,r,n,o){void 0===o&&(o=null),t.GLTFLoaderExtension.TraverseNode(this,e,r,n,o)||n(r,o)&&r.children&&this._traverseNodes(e,r.children,n,r)},n.prototype._loadAnimations=function(){var e=this._gltf.animations;if(e)for(var r=0;r<e.length;r++)for(var n=e[r],o="#/animations/"+r,a=0;a<n.channels.length;a++){var i=t.GLTFUtils.GetArrayItem(n.channels,a);if(!i)throw new Error(o+": Failed to find channel "+a);var s=t.GLTFUtils.GetArrayItem(n.samplers,i.sampler);if(!s)throw new Error(o+": Failed to find sampler "+i.sampler);this._loadAnimationChannel(n,o+"/channels/"+a,i,o+"/samplers/"+i.sampler,s)}},n.prototype._loadAnimationChannel=function(r,n,o,a,i){var s=t.GLTFUtils.GetArrayItem(this._gltf.nodes,o.target.node);if(!s)throw new Error(n+": Failed to find target node "+o.target.node);var l,u;switch(o.target.path){case"translation":l="position",u=e.Animation.ANIMATIONTYPE_VECTOR3;break;case"rotation":l="rotationQuaternion",u=e.Animation.ANIMATIONTYPE_QUATERNION;break;case"scale":l="scaling",u=e.Animation.ANIMATIONTYPE_VECTOR3;break;case"weights":l="influence",u=e.Animation.ANIMATIONTYPE_FLOAT;break;default:throw new Error(n+": Invalid target path '"+o.target.path+"'")}var c,f,d=function(){if(c&&f){var t,n=0;switch(l){case"position":t=function(){var t=e.Vector3.FromArray(f,n);return n+=3,t};break;case"rotationQuaternion":t=function(){var t=e.Quaternion.FromArray(f,n);return n+=4,t};break;case"scaling":t=function(){var t=e.Vector3.FromArray(f,n);return n+=3,t};break;case"influence":t=function(){for(var e=s.babylonMesh.morphTargetManager.numTargets,t=new Array(e),r=0;r<e;r++)t[r]=f[n++];return t}}var o;switch(i.interpolation){case"LINEAR":o=function(e){return{frame:c[e],value:t()}};break;case"CUBICSPLINE":o=function(e){return{frame:c[e],inTangent:t(),value:t(),outTangent:t()}};break;default:throw new Error(a+": Invalid interpolation '"+i.interpolation+"'")}for(var d=new Array(c.length),h=0;h<c.length;h++)d[h]=o(h);if(r.targets=r.targets||[],"influence"===l)for(var T=s.babylonMesh.morphTargetManager,p=0;p<T.numTargets;p++)!(function(t){var n=T.getTarget(t),o=(r.name||"anim"+r.index)+"_"+t,a=new e.Animation(o,l,1,u);a.setKeys(d.map((function(e){return{frame:e.frame,inTangent:e.inTangent?e.inTangent[t]:void 0,value:e.value[t],outTangent:e.outTangent?e.outTangent[t]:void 0}}))),n.animations.push(a),r.targets.push(n)})(p);else{var _=r.name||"anim"+r.index,E=new e.Animation(_,l,1,u);E.setKeys(d);for(var A=0,m=s.babylonAnimationTargets;A<m.length;A++){var y=m[A];y.animations.push(E.clone()),r.targets.push(y)}}}},h=t.GLTFUtils.GetArrayItem(this._gltf.accessors,i.input);if(!h)throw new Error(a+": Failed to find input accessor "+i.input);this._loadAccessorAsync("#/accessors/"+h.index,h,(function(e){c=e,d()}));var T=t.GLTFUtils.GetArrayItem(this._gltf.accessors,i.output);if(!T)throw new Error(a+": Failed to find output accessor "+i.output);this._loadAccessorAsync("#/accessors/"+T.index,T,(function(e){f=e,d()}))},n.prototype._loadBufferAsync=function(r,n,o){var a=this;if(this._addPendingData(n),n.loadedData)o(n.loadedData),this._removePendingData(n);else if(n.loadedObservable)n.loadedObservable.add((function(e){o(e.loadedData),a._removePendingData(e)}));else{if(!n.uri)throw new Error(r+": Uri is missing");if(t.GLTFUtils.IsBase64(n.uri)){var i=t.GLTFUtils.DecodeBase64(n.uri);n.loadedData=new Uint8Array(i),o(n.loadedData),this._removePendingData(n)}else n.loadedObservable=new e.Observable,n.loadedObservable.add((function(e){o(e.loadedData),a._removePendingData(e)})),this._loadUri(r,n.uri,(function(e){n.loadedData=e,n.loadedObservable.notifyObservers(n),n.loadedObservable=null}))}},n.prototype._loadBufferViewAsync=function(e,r,n){var o=this,a=t.GLTFUtils.GetArrayItem(this._gltf.buffers,r.buffer);if(!a)throw new Error(e+": Failed to find buffer "+r.buffer);this._loadBufferAsync("#/buffers/"+a.index,a,(function(t){if(!o._disposed){var a;try{a=new Uint8Array(t.buffer,t.byteOffset+(r.byteOffset||0),r.byteLength)}catch(t){throw new Error(e+": "+t.message)}n(a)}}))},n.prototype._loadAccessorAsync=function(e,r,n){var o=this;if(r.sparse)throw new Error(e+": Sparse accessors are not currently supported");if(r.normalized)throw new Error(e+": Normalized accessors are not currently supported");var a=t.GLTFUtils.GetArrayItem(this._gltf.bufferViews,r.bufferView);if(!a)throw new Error(e+": Failed to find buffer view "+r.bufferView);this._loadBufferViewAsync("#/bufferViews/"+a.index,a,(function(i){var s=o._getNumComponentsOfType(r.type);if(0===s)throw new Error(e+": Invalid type ("+r.type+")");var l;try{switch(r.componentType){case t.EComponentType.BYTE:l=o._buildArrayBuffer(Float32Array,i,r.byteOffset,r.count,s,a.byteStride);break;case t.EComponentType.UNSIGNED_BYTE:l=o._buildArrayBuffer(Uint8Array,i,r.byteOffset,r.count,s,a.byteStride);break;case t.EComponentType.SHORT:l=o._buildArrayBuffer(Int16Array,i,r.byteOffset,r.count,s,a.byteStride);break;case t.EComponentType.UNSIGNED_SHORT:l=o._buildArrayBuffer(Uint16Array,i,r.byteOffset,r.count,s,a.byteStride);break;case t.EComponentType.UNSIGNED_INT:l=o._buildArrayBuffer(Uint32Array,i,r.byteOffset,r.count,s,a.byteStride);break;case t.EComponentType.FLOAT:l=o._buildArrayBuffer(Float32Array,i,r.byteOffset,r.count,s,a.byteStride);break;default:throw new Error(e+": Invalid component type ("+r.componentType+")")}}catch(t){throw new Error(e+": "+t)}n(l)}))},n.prototype._getNumComponentsOfType=function(e){switch(e){case"SCALAR":return 1;case"VEC2":return 2;case"VEC3":return 3;case"VEC4":case"MAT2":return 4;case"MAT3":return 9;case"MAT4":return 16}return 0},n.prototype._buildArrayBuffer=function(e,t,r,n,o,a){r=t.byteOffset+(r||0);var i=n*o;if(null==a||a===o*e.BYTES_PER_ELEMENT)return new e(t.buffer,r,i);for(var s=a/e.BYTES_PER_ELEMENT,l=new e(t.buffer,r,s*n),u=new e(i),c=0,f=0;f<i;){for(var d=0;d<o;d++)u[f]=l[c+d],f++;c+=s}return u},n.prototype._addPendingData=function(e){this._renderReady||this._renderPendingCount++,this._addLoaderPendingData(e)},n.prototype._removePendingData=function(e){this._renderReady||0==--this._renderPendingCount&&(this._renderReady=!0,this._onRenderReady()),this._removeLoaderPendingData(e)},n.prototype._addLoaderPendingData=function(e){this._loaderPendingCount++;for(var t=0,r=this._loaderTrackers;t<r.length;t++){r[t]._addPendingData(e)}},n.prototype._removeLoaderPendingData=function(e){for(var t=0,r=this._loaderTrackers;t<r.length;t++){r[t]._removePendingData(e)}0==--this._loaderPendingCount&&this._onComplete()},n.prototype._whenAction=function(e,t){var n=this,o=new r(function(){n._loaderTrackers.splice(n._loaderTrackers.indexOf(o)),t()});this._loaderTrackers.push(o),this._addLoaderPendingData(o),e(),this._removeLoaderPendingData(o)},n.prototype._getDefaultMaterial=function(){if(!this._defaultMaterial){var t="__gltf_default",r=this._babylonScene.getMaterialByName(t);r||(r=new e.PBRMaterial(t,this._babylonScene),r.sideOrientation=e.Material.CounterClockWiseSideOrientation,r.metallic=1,r.roughness=1),this._defaultMaterial=r}return this._defaultMaterial},n.prototype._loadMaterialMetallicRoughnessProperties=function(r,n){var o=n.babylonMaterial;o.metallic=1,o.roughness=1;var a=n.pbrMetallicRoughness;if(a){if(o.albedoColor=a.baseColorFactor?e.Color3.FromArray(a.baseColorFactor):new e.Color3(1,1,1),o.metallic=null==a.metallicFactor?1:a.metallicFactor,o.roughness=null==a.roughnessFactor?1:a.roughnessFactor,a.baseColorTexture){var i=t.GLTFUtils.GetArrayItem(this._gltf.textures,a.baseColorTexture.index);if(!i)throw new Error(r+": Failed to find base color texture "+a.baseColorTexture.index);o.albedoTexture=this._loadTexture("#/textures/"+i.index,i,a.baseColorTexture.texCoord)}if(a.metallicRoughnessTexture){var i=t.GLTFUtils.GetArrayItem(this._gltf.textures,a.metallicRoughnessTexture.index);if(!i)throw new Error(r+": Failed to find metallic roughness texture "+a.metallicRoughnessTexture.index);o.metallicTexture=this._loadTexture("#/textures/"+i.index,i,a.metallicRoughnessTexture.texCoord),o.useMetallnessFromMetallicTextureBlue=!0,o.useRoughnessFromMetallicTextureGreen=!0,o.useRoughnessFromMetallicTextureAlpha=!1}this._loadMaterialAlphaProperties(r,n,a.baseColorFactor)}},n.prototype._loadMaterial=function(e,r,n){if(r.babylonMaterial)return void n(r.babylonMaterial,!1);t.GLTFLoaderExtension.LoadMaterial(this,e,r,n)||(this._createPbrMaterial(r),this._loadMaterialBaseProperties(e,r),this._loadMaterialMetallicRoughnessProperties(e,r),n(r.babylonMaterial,!0))},n.prototype._createPbrMaterial=function(t){var r=new e.PBRMaterial(t.name||"mat"+t.index,this._babylonScene);r.sideOrientation=e.Material.CounterClockWiseSideOrientation,t.babylonMaterial=r},n.prototype._loadMaterialBaseProperties=function(r,n){var o=n.babylonMaterial;if(o.emissiveColor=n.emissiveFactor?e.Color3.FromArray(n.emissiveFactor):new e.Color3(0,0,0),n.doubleSided&&(o.backFaceCulling=!1,o.twoSidedLighting=!0),n.normalTexture){var a=t.GLTFUtils.GetArrayItem(this._gltf.textures,n.normalTexture.index);if(!a)throw new Error(r+": Failed to find normal texture "+n.normalTexture.index);o.bumpTexture=this._loadTexture("#/textures/"+a.index,a,n.normalTexture.texCoord),o.invertNormalMapX=!this._babylonScene.useRightHandedSystem,o.invertNormalMapY=this._babylonScene.useRightHandedSystem,null!=n.normalTexture.scale&&(o.bumpTexture.level=n.normalTexture.scale)}if(n.occlusionTexture){var a=t.GLTFUtils.GetArrayItem(this._gltf.textures,n.occlusionTexture.index);if(!a)throw new Error(r+": Failed to find occlusion texture "+n.occlusionTexture.index);o.ambientTexture=this._loadTexture("#/textures/"+a.index,a,n.occlusionTexture.texCoord),o.useAmbientInGrayScale=!0,null!=n.occlusionTexture.strength&&(o.ambientTextureStrength=n.occlusionTexture.strength)}if(n.emissiveTexture){var a=t.GLTFUtils.GetArrayItem(this._gltf.textures,n.emissiveTexture.index);if(!a)throw new Error(r+": Failed to find emissive texture "+n.emissiveTexture.index);o.emissiveTexture=this._loadTexture("#/textures/"+a.index,a,n.emissiveTexture.texCoord)}},n.prototype._loadMaterialAlphaProperties=function(e,t,r){var n=t.babylonMaterial;switch(t.alphaMode||"OPAQUE"){case"OPAQUE":break;case"MASK":n.alphaCutOff=null==t.alphaCutoff?.5:t.alphaCutoff,r&&(0==r[3]?n.alphaCutOff=1:n.alphaCutOff/=r[3]),n.albedoTexture&&(n.albedoTexture.hasAlpha=!0);break;case"BLEND":r&&(n.alpha=r[3]),n.albedoTexture&&(n.albedoTexture.hasAlpha=!0,n.useAlphaFromAlbedoTexture=!0);break;default:throw new Error(e+": Invalid alpha mode '"+t.alphaMode+"'")}},
n.prototype._loadTexture=function(r,n,o){var a=this,i=null==n.sampler?{}:t.GLTFUtils.GetArrayItem(this._gltf.samplers,n.sampler);if(!i)throw new Error(r+": Failed to find sampler "+n.sampler);var s=i.minFilter===t.ETextureMinFilter.NEAREST||i.minFilter===t.ETextureMinFilter.LINEAR,l=t.GLTFUtils.GetTextureSamplingMode(i.magFilter,i.minFilter);this._addPendingData(n);var u=new e.Texture(null,this._babylonScene,s,!1,l,function(){a._tryCatchOnError((function(){a._removePendingData(n)}))},function(e){a._tryCatchOnError((function(){throw new Error(r+": "+e)}))});if(n.url)u.updateURL(n.url);else if(n.dataReadyObservable)n.dataReadyObservable.add((function(e){u.updateURL(e.url)}));else{n.dataReadyObservable=new e.Observable,n.dataReadyObservable.add((function(e){u.updateURL(e.url)}));var c=t.GLTFUtils.GetArrayItem(this._gltf.images,n.source);if(!c)throw new Error(r+": Failed to find source "+n.source);this._loadImage("#/images/"+c.index,c,(function(e){n.url=URL.createObjectURL(new Blob([e],{type:c.mimeType})),n.dataReadyObservable.notifyObservers(n)}))}return u.coordinatesIndex=o||0,u.wrapU=t.GLTFUtils.GetTextureWrapMode(i.wrapS),u.wrapV=t.GLTFUtils.GetTextureWrapMode(i.wrapT),u.name=n.name||"texture"+n.index,this._parent.onTextureLoaded&&this._parent.onTextureLoaded(u),u},n.prototype._loadImage=function(e,r,n){if(r.uri)t.GLTFUtils.IsBase64(r.uri)?n(new Uint8Array(t.GLTFUtils.DecodeBase64(r.uri))):this._loadUri(e,r.uri,n);else{var o=t.GLTFUtils.GetArrayItem(this._gltf.bufferViews,r.bufferView);if(!o)throw new Error(e+": Failed to find buffer view "+r.bufferView);this._loadBufferViewAsync("#/bufferViews/"+o.index,o,n)}},n.prototype._loadUri=function(r,n,o){var a=this;if(!t.GLTFUtils.ValidateUri(n))throw new Error(r+": Uri '"+n+"' is invalid");var i=e.Tools.LoadFile(this._rootUrl+n,(function(e){a._tryCatchOnError((function(){o(new Uint8Array(e))}))}),(function(e){a._tryCatchOnError((function(){a._onProgress(e)}))}),this._babylonScene.database,!0,(function(e){a._tryCatchOnError((function(){throw new Error(r+": Failed to load '"+n+"'"+(e?": "+e.status+" "+e.statusText:""))}))}));i&&this._requests.push(i)},n.prototype._tryCatchOnError=function(e){try{e()}catch(e){this._onError(e.message)}},n.Extensions={},n})();t.GLTFLoader=n,e.GLTFFileLoader.CreateGLTFLoaderV2=function(e){return new n(e)}})(e.GLTF2||(e.GLTF2={}))})(BABYLON||(BABYLON={}));var BABYLON;!(function(e){!(function(t){var r=(function(){function r(){}return r.IsBase64=function(e){return!(e.length<5)&&"data:"===e.substr(0,5)},r.DecodeBase64=function(e){for(var t=atob(e.split(",")[1]),r=t.length,n=new Uint8Array(new ArrayBuffer(r)),o=0;o<r;o++)n[o]=t.charCodeAt(o);return n.buffer},r.ValidateUri=function(e){return e.indexOf("..")===-1},r.AssignIndices=function(e){if(e)for(var t=0;t<e.length;t++)e[t].index=t},r.GetArrayItem=function(e,t){return e&&e[t]?e[t]:null},r.GetTextureWrapMode=function(r){switch(r=void 0===r?t.ETextureWrapMode.REPEAT:r){case t.ETextureWrapMode.CLAMP_TO_EDGE:return e.Texture.CLAMP_ADDRESSMODE;case t.ETextureWrapMode.MIRRORED_REPEAT:return e.Texture.MIRROR_ADDRESSMODE;case t.ETextureWrapMode.REPEAT:return e.Texture.WRAP_ADDRESSMODE;default:return e.Tools.Warn("Invalid texture wrap mode ("+r+")"),e.Texture.WRAP_ADDRESSMODE}},r.GetTextureSamplingMode=function(r,n){if(r=void 0===r?t.ETextureMagFilter.LINEAR:r,n=void 0===n?t.ETextureMinFilter.LINEAR_MIPMAP_LINEAR:n,r===t.ETextureMagFilter.LINEAR)switch(n){case t.ETextureMinFilter.NEAREST:return e.Texture.LINEAR_NEAREST;case t.ETextureMinFilter.LINEAR:return e.Texture.LINEAR_LINEAR;case t.ETextureMinFilter.NEAREST_MIPMAP_NEAREST:return e.Texture.LINEAR_NEAREST_MIPNEAREST;case t.ETextureMinFilter.LINEAR_MIPMAP_NEAREST:return e.Texture.LINEAR_LINEAR_MIPNEAREST;case t.ETextureMinFilter.NEAREST_MIPMAP_LINEAR:return e.Texture.LINEAR_NEAREST_MIPLINEAR;case t.ETextureMinFilter.LINEAR_MIPMAP_LINEAR:return e.Texture.LINEAR_LINEAR_MIPLINEAR;default:return e.Tools.Warn("Invalid texture minification filter ("+n+")"),e.Texture.LINEAR_LINEAR_MIPLINEAR}else switch(r!==t.ETextureMagFilter.NEAREST&&e.Tools.Warn("Invalid texture magnification filter ("+r+")"),n){case t.ETextureMinFilter.NEAREST:return e.Texture.NEAREST_NEAREST;case t.ETextureMinFilter.LINEAR:return e.Texture.NEAREST_LINEAR;case t.ETextureMinFilter.NEAREST_MIPMAP_NEAREST:return e.Texture.NEAREST_NEAREST_MIPNEAREST;case t.ETextureMinFilter.LINEAR_MIPMAP_NEAREST:return e.Texture.NEAREST_LINEAR_MIPNEAREST;case t.ETextureMinFilter.NEAREST_MIPMAP_LINEAR:return e.Texture.NEAREST_NEAREST_MIPLINEAR;case t.ETextureMinFilter.LINEAR_MIPMAP_LINEAR:return e.Texture.NEAREST_LINEAR_MIPLINEAR;default:return e.Tools.Warn("Invalid texture minification filter ("+n+")"),e.Texture.NEAREST_NEAREST_MIPNEAREST}},r})();t.GLTFUtils=r})(e.GLTF2||(e.GLTF2={}))})(BABYLON||(BABYLON={}));var BABYLON;!(function(e){!(function(e){var t=(function(){function e(){this.enabled=!0}return e.prototype._traverseNode=function(e,t,r,n,o){return!1},e.prototype._loadNode=function(e,t,r){return!1},e.prototype._loadMaterial=function(e,t,r,n){return!1},e.prototype._loadExtension=function(e,t){var r=this;if(!e.extensions)return!1;var n=e.extensions[this.name];return!!n&&(e.extensions[this.name]=void 0,t(n,(function(){e.extensions[r.name]=n})),!0)},e.TraverseNode=function(e,t,r,n,o){return this._ApplyExtensions((function(a){return a._traverseNode(e,t,r,n,o)}))},e.LoadNode=function(e,t,r){return this._ApplyExtensions((function(n){return n._loadNode(e,t,r)}))},e.LoadMaterial=function(e,t,r,n){return this._ApplyExtensions((function(o){return o._loadMaterial(e,t,r,n)}))},e._ApplyExtensions=function(t){var r=e._Extensions;if(!r)return!1;for(var n=0,o=r;n<o.length;n++){var a=o[n];if(a.enabled&&t(a))return!0}return!1},e._Extensions=[],e})();e.GLTFLoaderExtension=t})(e.GLTF2||(e.GLTF2={}))})(BABYLON||(BABYLON={}));var __extends=this&&this.__extends||(function(){var e=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var r in t)t.hasOwnProperty(r)&&(e[r]=t[r])};return function(t,r){function n(){this.constructor=t}e(t,r),t.prototype=null===r?Object.create(r):(n.prototype=r.prototype,new n)}})(),BABYLON;!(function(e){!(function(t){!(function(r){var n=(function(r){function n(){return null!==r&&r.apply(this,arguments)||this}return __extends(n,r),Object.defineProperty(n.prototype,"name",{get:function(){return"MSFT_lod"},enumerable:!0,configurable:!0}),n.prototype._traverseNode=function(e,r,n,o,a){return this._loadExtension(n,(function(i,s){for(var l=i.ids.length-1;l>=0;l--){var u=t.GLTFUtils.GetArrayItem(e._gltf.nodes,i.ids[l]);if(!u)throw new Error(r+": Failed to find node "+i.ids[l]);e._traverseNode(r,u,o,a)}e._traverseNode(r,n,o,a),s()}))},n.prototype._loadNode=function(e,t,r){var n=this;return this._loadExtension(r,(function(o,a){var i=[r.index].concat(o.ids).map((function(t){return e._gltf.nodes[t]}));e._addLoaderPendingData(r),n._loadNodeLOD(e,t,i,i.length-1,(function(){e._removeLoaderPendingData(r),a()}))}))},n.prototype._loadNodeLOD=function(e,t,r,o,a){var i=this;e._whenAction((function(){e._loadNode(t,r[o])}),(function(){if(o!==r.length-1){r[o+1].babylonMesh.setEnabled(!1)}if(0===o)return void a();setTimeout((function(){e._tryCatchOnError((function(){i._loadNodeLOD(e,t,r,o-1,a)}))}),n.MinimalLODDelay)}))},n.prototype._loadMaterial=function(e,t,r,n){var o=this;return this._loadExtension(r,(function(a,i){var s=[r.index].concat(a.ids).map((function(t){return e._gltf.materials[t]}));e._addLoaderPendingData(r),o._loadMaterialLOD(e,t,s,s.length-1,n,(function(){r.extensions[o.name]=a,e._removeLoaderPendingData(r),i()}))}))},n.prototype._loadMaterialLOD=function(t,r,o,a,i,s){var l=this;t._loadMaterial(r,o[a],(function(u,c){if(i(u,c),0===a)return void s();t._executeWhenRenderReady((function(){e.BaseTexture.WhenAllReady(u.getActiveTextures(),(function(){setTimeout((function(){t._tryCatchOnError((function(){l._loadMaterialLOD(t,r,o,a-1,i,s)}))}),n.MinimalLODDelay)}))}))}))},n.MinimalLODDelay=250,n})(t.GLTFLoaderExtension);r.MSFTLOD=n,t.GLTFLoader.RegisterExtension(new n)})(t.Extensions||(t.Extensions={}))})(e.GLTF2||(e.GLTF2={}))})(BABYLON||(BABYLON={}));var __extends=this&&this.__extends||(function(){var e=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(e,t){e.__proto__=t}||function(e,t){for(var r in t)t.hasOwnProperty(r)&&(e[r]=t[r])};return function(t,r){function n(){this.constructor=t}e(t,r),t.prototype=null===r?Object.create(r):(n.prototype=r.prototype,new n)}})(),BABYLON;!(function(e){!(function(t){!(function(r){var n=(function(r){function n(){return null!==r&&r.apply(this,arguments)||this}return __extends(n,r),Object.defineProperty(n.prototype,"name",{get:function(){return"KHR_materials_pbrSpecularGlossiness"},enumerable:!0,configurable:!0}),n.prototype._loadMaterial=function(e,t,r,n){var o=this;return this._loadExtension(r,(function(a,i){e._createPbrMaterial(r),e._loadMaterialBaseProperties(t,r),o._loadSpecularGlossinessProperties(e,t,r,a),n(r.babylonMaterial,!0)}))},n.prototype._loadSpecularGlossinessProperties=function(r,n,o,a){var i=o.babylonMaterial;if(i.albedoColor=a.diffuseFactor?e.Color3.FromArray(a.diffuseFactor):new e.Color3(1,1,1),i.reflectivityColor=a.specularFactor?e.Color3.FromArray(a.specularFactor):new e.Color3(1,1,1),i.microSurface=null==a.glossinessFactor?1:a.glossinessFactor,a.diffuseTexture){var s=t.GLTFUtils.GetArrayItem(r._gltf.textures,a.diffuseTexture.index);if(!s)throw new Error(n+": Failed to find diffuse texture "+a.diffuseTexture.index);i.albedoTexture=r._loadTexture("textures["+s.index+"]",s,a.diffuseTexture.texCoord)}if(a.specularGlossinessTexture){var s=t.GLTFUtils.GetArrayItem(r._gltf.textures,a.specularGlossinessTexture.index);if(!s)throw new Error(n+": Failed to find diffuse texture "+a.specularGlossinessTexture.index);i.reflectivityTexture=r._loadTexture("textures["+s.index+"]",s,a.specularGlossinessTexture.texCoord),i.reflectivityTexture.hasAlpha=!0,i.useMicroSurfaceFromReflectivityMapAlpha=!0}r._loadMaterialAlphaProperties(n,o,a.diffuseFactor)},n})(t.GLTFLoaderExtension);r.KHRMaterialsPbrSpecularGlossiness=n,t.GLTFLoader.RegisterExtension(new n)})(t.Extensions||(t.Extensions={}))})(e.GLTF2||(e.GLTF2={}))})(BABYLON||(BABYLON={}));