!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t(require("babylonjs")):"function"==typeof define&&define.amd?define("babylonjs-materials",["babylonjs"],t):"object"==typeof exports?exports["babylonjs-materials"]=t(require("babylonjs")):e.MATERIALS=t(e.BABYLON)}("undefined"!=typeof self?self:"undefined"!=typeof global?global:this,(function(e){return function(e){var t={};function r(i){if(t[i])return t[i].exports;var n=t[i]={i:i,l:!1,exports:{}};return e[i].call(n.exports,n,n.exports,r),n.l=!0,n.exports}return r.m=e,r.c=t,r.d=function(e,t,i){r.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:i})},r.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},r.t=function(e,t){if(1&t&&(e=r(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var i=Object.create(null);if(r.r(i),Object.defineProperty(i,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var n in e)r.d(i,n,function(t){return e[t]}.bind(null,n));return i},r.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return r.d(t,"a",t),t},r.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},r.p="",r(r.s=32)}({0:function(t,r){t.exports=e},1:function(e,t,r){"use strict";r.d(t,"b",(function(){return n})),r.d(t,"a",(function(){return o}));
/*! *****************************************************************************
Copyright (c) Microsoft Corporation.

Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
***************************************************************************** */
var i=function(e,t){return(i=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])})(e,t)};function n(e,t){function r(){this.constructor=e}i(e,t),e.prototype=null===t?Object.create(t):(r.prototype=t.prototype,new r)}function o(e,t,r,i){var n,o=arguments.length,s=o<3?t:null===i?i=Object.getOwnPropertyDescriptor(t,r):i;if("object"==typeof Reflect&&"function"==typeof Reflect.decorate)s=Reflect.decorate(e,t,r,i);else for(var u=e.length-1;u>=0;u--)(n=e[u])&&(s=(o<3?n(s):o>3?n(t,r,s):n(t,r))||s);return o>3&&s&&Object.defineProperty(t,r,s),s}Object.create;Object.create},2:function(e,t){var r;r=function(){return this}();try{r=r||new Function("return this")()}catch(e){"object"==typeof window&&(r=window)}e.exports=r},32:function(e,t,r){"use strict";r.r(t),function(e){var i=r(8);r.d(t,"TerrainMaterial",(function(){return i.TerrainMaterial}));var n=void 0!==e?e:"undefined"!=typeof window?window:void 0;if(void 0!==n)for(var o in i)n.BABYLON[o]=i[o]}.call(this,r(2))},8:function(e,t,r){"use strict";r.r(t),r.d(t,"TerrainMaterial",(function(){return a}));var i=r(1),n=r(0),o="precision highp float;\n\nuniform vec3 vEyePosition;\nuniform vec4 vDiffuseColor;\n#ifdef SPECULARTERM\nuniform vec4 vSpecularColor;\n#endif\n\nvarying vec3 vPositionW;\n#ifdef NORMAL\nvarying vec3 vNormalW;\n#endif\n#ifdef VERTEXCOLOR\nvarying vec4 vColor;\n#endif\n\n#include<helperFunctions>\n\n#include<__decl__lightFragment>[0..maxSimultaneousLights]\n\n#ifdef DIFFUSE\nvarying vec2 vTextureUV;\nuniform sampler2D textureSampler;\nuniform vec2 vTextureInfos;\nuniform sampler2D diffuse1Sampler;\nuniform sampler2D diffuse2Sampler;\nuniform sampler2D diffuse3Sampler;\nuniform vec2 diffuse1Infos;\nuniform vec2 diffuse2Infos;\nuniform vec2 diffuse3Infos;\n#endif\n#ifdef BUMP\nuniform sampler2D bump1Sampler;\nuniform sampler2D bump2Sampler;\nuniform sampler2D bump3Sampler;\n#endif\n\n#include<lightsFragmentFunctions>\n#include<shadowsFragmentFunctions>\n#include<clipPlaneFragmentDeclaration>\n\n#include<fogFragmentDeclaration>\n\n#ifdef BUMP\n#extension GL_OES_standard_derivatives : enable\n\nmat3 cotangent_frame(vec3 normal,vec3 p,vec2 uv)\n{\n\nvec3 dp1=dFdx(p);\nvec3 dp2=dFdy(p);\nvec2 duv1=dFdx(uv);\nvec2 duv2=dFdy(uv);\n\nvec3 dp2perp=cross(dp2,normal);\nvec3 dp1perp=cross(normal,dp1);\nvec3 tangent=dp2perp*duv1.x+dp1perp*duv2.x;\nvec3 binormal=dp2perp*duv1.y+dp1perp*duv2.y;\n\nfloat invmax=inversesqrt(max(dot(tangent,tangent),dot(binormal,binormal)));\nreturn mat3(tangent*invmax,binormal*invmax,normal);\n}\nvec3 perturbNormal(vec3 viewDir,vec3 mixColor)\n{\nvec3 bump1Color=texture2D(bump1Sampler,vTextureUV*diffuse1Infos).xyz;\nvec3 bump2Color=texture2D(bump2Sampler,vTextureUV*diffuse2Infos).xyz;\nvec3 bump3Color=texture2D(bump3Sampler,vTextureUV*diffuse3Infos).xyz;\nbump1Color.rgb*=mixColor.r;\nbump2Color.rgb=mix(bump1Color.rgb,bump2Color.rgb,mixColor.g);\nvec3 map=mix(bump2Color.rgb,bump3Color.rgb,mixColor.b);\nmap=map*255./127.-128./127.;\nmat3 TBN=cotangent_frame(vNormalW*vTextureInfos.y,-viewDir,vTextureUV);\nreturn normalize(TBN*map);\n}\n#endif\nvoid main(void) {\n\n#include<clipPlaneFragment>\nvec3 viewDirectionW=normalize(vEyePosition-vPositionW);\n\nvec4 baseColor=vec4(1.,1.,1.,1.);\nvec3 diffuseColor=vDiffuseColor.rgb;\n#ifdef SPECULARTERM\nfloat glossiness=vSpecularColor.a;\nvec3 specularColor=vSpecularColor.rgb;\n#else\nfloat glossiness=0.;\n#endif\n\nfloat alpha=vDiffuseColor.a;\n\n#ifdef NORMAL\nvec3 normalW=normalize(vNormalW);\n#else\nvec3 normalW=vec3(1.0,1.0,1.0);\n#endif\n#ifdef DIFFUSE\nbaseColor=texture2D(textureSampler,vTextureUV);\n#if defined(BUMP) && defined(DIFFUSE)\nnormalW=perturbNormal(viewDirectionW,baseColor.rgb);\n#endif\n#ifdef ALPHATEST\nif (baseColor.a<0.4)\ndiscard;\n#endif\n#include<depthPrePass>\nbaseColor.rgb*=vTextureInfos.y;\nvec4 diffuse1Color=texture2D(diffuse1Sampler,vTextureUV*diffuse1Infos);\nvec4 diffuse2Color=texture2D(diffuse2Sampler,vTextureUV*diffuse2Infos);\nvec4 diffuse3Color=texture2D(diffuse3Sampler,vTextureUV*diffuse3Infos);\ndiffuse1Color.rgb*=baseColor.r;\ndiffuse2Color.rgb=mix(diffuse1Color.rgb,diffuse2Color.rgb,baseColor.g);\nbaseColor.rgb=mix(diffuse2Color.rgb,diffuse3Color.rgb,baseColor.b);\n#endif\n#ifdef VERTEXCOLOR\nbaseColor.rgb*=vColor.rgb;\n#endif\n\nvec3 diffuseBase=vec3(0.,0.,0.);\nlightingInfo info;\nfloat shadow=1.;\n#ifdef SPECULARTERM\nvec3 specularBase=vec3(0.,0.,0.);\n#endif\n#include<lightFragment>[0..maxSimultaneousLights]\n#ifdef VERTEXALPHA\nalpha*=vColor.a;\n#endif\n#ifdef SPECULARTERM\nvec3 finalSpecular=specularBase*specularColor;\n#else\nvec3 finalSpecular=vec3(0.0);\n#endif\nvec3 finalDiffuse=clamp(diffuseBase*diffuseColor*baseColor.rgb,0.0,1.0);\n\nvec4 color=vec4(finalDiffuse+finalSpecular,alpha);\n#include<fogFragment>\ngl_FragColor=color;\n}\n";n.Effect.ShadersStore.terrainPixelShader=o;var s="precision highp float;\n\nattribute vec3 position;\n#ifdef NORMAL\nattribute vec3 normal;\n#endif\n#ifdef UV1\nattribute vec2 uv;\n#endif\n#ifdef UV2\nattribute vec2 uv2;\n#endif\n#ifdef VERTEXCOLOR\nattribute vec4 color;\n#endif\n#include<bonesDeclaration>\n\n#include<instancesDeclaration>\nuniform mat4 view;\nuniform mat4 viewProjection;\n#ifdef DIFFUSE\nvarying vec2 vTextureUV;\nuniform mat4 textureMatrix;\nuniform vec2 vTextureInfos;\n#endif\n#ifdef POINTSIZE\nuniform float pointSize;\n#endif\n\nvarying vec3 vPositionW;\n#ifdef NORMAL\nvarying vec3 vNormalW;\n#endif\n#ifdef VERTEXCOLOR\nvarying vec4 vColor;\n#endif\n#include<clipPlaneVertexDeclaration>\n#include<fogVertexDeclaration>\n#include<__decl__lightFragment>[0..maxSimultaneousLights]\nvoid main(void) {\n#include<instancesVertex>\n#include<bonesVertex>\nvec4 worldPos=finalWorld*vec4(position,1.0);\ngl_Position=viewProjection*worldPos;\nvPositionW=vec3(worldPos);\n#ifdef NORMAL\nvNormalW=normalize(vec3(finalWorld*vec4(normal,0.0)));\n#endif\n\n#ifndef UV1\nvec2 uv=vec2(0.,0.);\n#endif\n#ifndef UV2\nvec2 uv2=vec2(0.,0.);\n#endif\n#ifdef DIFFUSE\nif (vTextureInfos.x == 0.)\n{\nvTextureUV=vec2(textureMatrix*vec4(uv,1.0,0.0));\n}\nelse\n{\nvTextureUV=vec2(textureMatrix*vec4(uv2,1.0,0.0));\n}\n#endif\n\n#include<clipPlaneVertex>\n\n#include<fogVertex>\n\n#include<shadowsVertex>[0..maxSimultaneousLights]\n\n#ifdef VERTEXCOLOR\nvColor=color;\n#endif\n\n#ifdef POINTSIZE\ngl_PointSize=pointSize;\n#endif\n}\n";n.Effect.ShadersStore.terrainVertexShader=s;var u=function(e){function t(){var t=e.call(this)||this;return t.DIFFUSE=!1,t.BUMP=!1,t.CLIPPLANE=!1,t.CLIPPLANE2=!1,t.CLIPPLANE3=!1,t.CLIPPLANE4=!1,t.CLIPPLANE5=!1,t.CLIPPLANE6=!1,t.ALPHATEST=!1,t.DEPTHPREPASS=!1,t.POINTSIZE=!1,t.FOG=!1,t.SPECULARTERM=!1,t.NORMAL=!1,t.UV1=!1,t.UV2=!1,t.VERTEXCOLOR=!1,t.VERTEXALPHA=!1,t.NUM_BONE_INFLUENCERS=0,t.BonesPerMesh=0,t.INSTANCES=!1,t.rebuild(),t}return Object(i.b)(t,e),t}(n.MaterialDefines),a=function(e){function t(t,r){var i=e.call(this,t,r)||this;return i.diffuseColor=new n.Color3(1,1,1),i.specularColor=new n.Color3(0,0,0),i.specularPower=64,i._disableLighting=!1,i._maxSimultaneousLights=4,i}return Object(i.b)(t,e),t.prototype.needAlphaBlending=function(){return this.alpha<1},t.prototype.needAlphaTesting=function(){return!1},t.prototype.getAlphaTestTexture=function(){return null},t.prototype.isReadyForSubMesh=function(e,t,r){if(this.isFrozen&&t.effect&&t.effect._wasPreviouslyReady)return!0;t._materialDefines||(t._materialDefines=new u);var i=t._materialDefines,o=this.getScene();if(this._isReadyForSubMesh(t))return!0;var s=o.getEngine();if(o.texturesEnabled){if(!this.mixTexture||!this.mixTexture.isReady())return!1;if(i._needUVs=!0,n.MaterialFlags.DiffuseTextureEnabled){if(!this.diffuseTexture1||!this.diffuseTexture1.isReady())return!1;if(!this.diffuseTexture2||!this.diffuseTexture2.isReady())return!1;if(!this.diffuseTexture3||!this.diffuseTexture3.isReady())return!1;i.DIFFUSE=!0}if(this.bumpTexture1&&this.bumpTexture2&&this.bumpTexture3&&n.MaterialFlags.BumpTextureEnabled){if(!this.bumpTexture1.isReady())return!1;if(!this.bumpTexture2.isReady())return!1;if(!this.bumpTexture3.isReady())return!1;i._needNormals=!0,i.BUMP=!0}}if(n.MaterialHelper.PrepareDefinesForMisc(e,o,!1,this.pointsCloud,this.fogEnabled,this._shouldTurnAlphaTestOn(e),i),i._needNormals=n.MaterialHelper.PrepareDefinesForLights(o,e,i,!1,this._maxSimultaneousLights,this._disableLighting),n.MaterialHelper.PrepareDefinesForFrameBoundValues(o,s,i,!!r),n.MaterialHelper.PrepareDefinesForAttributes(e,i,!0,!0),i.isDirty){i.markAsProcessed(),o.resetCachedMaterial();var a=new n.EffectFallbacks;i.FOG&&a.addFallback(1,"FOG"),n.MaterialHelper.HandleFallbacksForShadows(i,a,this.maxSimultaneousLights),i.NUM_BONE_INFLUENCERS>0&&a.addCPUSkinningFallback(0,e);var f=[n.VertexBuffer.PositionKind];i.NORMAL&&f.push(n.VertexBuffer.NormalKind),i.UV1&&f.push(n.VertexBuffer.UVKind),i.UV2&&f.push(n.VertexBuffer.UV2Kind),i.VERTEXCOLOR&&f.push(n.VertexBuffer.ColorKind),n.MaterialHelper.PrepareAttributesForBones(f,e,i,a),n.MaterialHelper.PrepareAttributesForInstances(f,i);var l=i.toString(),c=["world","view","viewProjection","vEyePosition","vLightsType","vDiffuseColor","vSpecularColor","vFogInfos","vFogColor","pointSize","vTextureInfos","mBones","vClipPlane","vClipPlane2","vClipPlane3","vClipPlane4","vClipPlane5","vClipPlane6","textureMatrix","diffuse1Infos","diffuse2Infos","diffuse3Infos"],d=["textureSampler","diffuse1Sampler","diffuse2Sampler","diffuse3Sampler","bump1Sampler","bump2Sampler","bump3Sampler"],p=new Array;n.MaterialHelper.PrepareUniformsAndSamplersList({uniformsNames:c,uniformBuffersNames:p,samplers:d,defines:i,maxSimultaneousLights:this.maxSimultaneousLights}),t.setEffect(o.getEngine().createEffect("terrain",{attributes:f,uniformsNames:c,uniformBuffersNames:p,samplers:d,defines:l,fallbacks:a,onCompiled:this.onCompiled,onError:this.onError,indexParameters:{maxSimultaneousLights:this.maxSimultaneousLights}},s),i)}return!(!t.effect||!t.effect.isReady())&&(i._renderId=o.getRenderId(),t.effect._wasPreviouslyReady=!0,!0)},t.prototype.bindForSubMesh=function(e,t,r){var i=this.getScene(),o=r._materialDefines;if(o){var s=r.effect;s&&(this._activeEffect=s,this.bindOnlyWorldMatrix(e),this._activeEffect.setMatrix("viewProjection",i.getTransformMatrix()),n.MaterialHelper.BindBonesParameters(t,this._activeEffect),this._mustRebind(i,s)&&(this.mixTexture&&(this._activeEffect.setTexture("textureSampler",this._mixTexture),this._activeEffect.setFloat2("vTextureInfos",this._mixTexture.coordinatesIndex,this._mixTexture.level),this._activeEffect.setMatrix("textureMatrix",this._mixTexture.getTextureMatrix()),n.MaterialFlags.DiffuseTextureEnabled&&(this._diffuseTexture1&&(this._activeEffect.setTexture("diffuse1Sampler",this._diffuseTexture1),this._activeEffect.setFloat2("diffuse1Infos",this._diffuseTexture1.uScale,this._diffuseTexture1.vScale)),this._diffuseTexture2&&(this._activeEffect.setTexture("diffuse2Sampler",this._diffuseTexture2),this._activeEffect.setFloat2("diffuse2Infos",this._diffuseTexture2.uScale,this._diffuseTexture2.vScale)),this._diffuseTexture3&&(this._activeEffect.setTexture("diffuse3Sampler",this._diffuseTexture3),this._activeEffect.setFloat2("diffuse3Infos",this._diffuseTexture3.uScale,this._diffuseTexture3.vScale))),n.MaterialFlags.BumpTextureEnabled&&i.getEngine().getCaps().standardDerivatives&&(this._bumpTexture1&&this._activeEffect.setTexture("bump1Sampler",this._bumpTexture1),this._bumpTexture2&&this._activeEffect.setTexture("bump2Sampler",this._bumpTexture2),this._bumpTexture3&&this._activeEffect.setTexture("bump3Sampler",this._bumpTexture3))),n.MaterialHelper.BindClipPlane(this._activeEffect,i),this.pointsCloud&&this._activeEffect.setFloat("pointSize",this.pointSize),n.MaterialHelper.BindEyePosition(s,i)),this._activeEffect.setColor4("vDiffuseColor",this.diffuseColor,this.alpha*t.visibility),o.SPECULARTERM&&this._activeEffect.setColor4("vSpecularColor",this.specularColor,this.specularPower),i.lightsEnabled&&!this.disableLighting&&n.MaterialHelper.BindLights(i,t,this._activeEffect,o,this.maxSimultaneousLights),i.fogEnabled&&t.applyFog&&i.fogMode!==n.Scene.FOGMODE_NONE&&this._activeEffect.setMatrix("view",i.getViewMatrix()),n.MaterialHelper.BindFogParameters(i,t,this._activeEffect),this._afterBind(t,this._activeEffect))}},t.prototype.getAnimatables=function(){var e=[];return this.mixTexture&&this.mixTexture.animations&&this.mixTexture.animations.length>0&&e.push(this.mixTexture),e},t.prototype.getActiveTextures=function(){var t=e.prototype.getActiveTextures.call(this);return this._mixTexture&&t.push(this._mixTexture),this._diffuseTexture1&&t.push(this._diffuseTexture1),this._diffuseTexture2&&t.push(this._diffuseTexture2),this._diffuseTexture3&&t.push(this._diffuseTexture3),this._bumpTexture1&&t.push(this._bumpTexture1),this._bumpTexture2&&t.push(this._bumpTexture2),this._bumpTexture3&&t.push(this._bumpTexture3),t},t.prototype.hasTexture=function(t){return!!e.prototype.hasTexture.call(this,t)||(this._mixTexture===t||(this._diffuseTexture1===t||(this._diffuseTexture2===t||(this._diffuseTexture3===t||(this._bumpTexture1===t||(this._bumpTexture2===t||this._bumpTexture3===t))))))},t.prototype.dispose=function(t){this.mixTexture&&this.mixTexture.dispose(),e.prototype.dispose.call(this,t)},t.prototype.clone=function(e){var r=this;return n.SerializationHelper.Clone((function(){return new t(e,r.getScene())}),this)},t.prototype.serialize=function(){var e=n.SerializationHelper.Serialize(this);return e.customType="BABYLON.TerrainMaterial",e},t.prototype.getClassName=function(){return"TerrainMaterial"},t.Parse=function(e,r,i){return n.SerializationHelper.Parse((function(){return new t(e.name,r)}),e,r,i)},Object(i.a)([Object(n.serializeAsTexture)("mixTexture")],t.prototype,"_mixTexture",void 0),Object(i.a)([Object(n.expandToProperty)("_markAllSubMeshesAsTexturesDirty")],t.prototype,"mixTexture",void 0),Object(i.a)([Object(n.serializeAsTexture)("diffuseTexture1")],t.prototype,"_diffuseTexture1",void 0),Object(i.a)([Object(n.expandToProperty)("_markAllSubMeshesAsTexturesDirty")],t.prototype,"diffuseTexture1",void 0),Object(i.a)([Object(n.serializeAsTexture)("diffuseTexture2")],t.prototype,"_diffuseTexture2",void 0),Object(i.a)([Object(n.expandToProperty)("_markAllSubMeshesAsTexturesDirty")],t.prototype,"diffuseTexture2",void 0),Object(i.a)([Object(n.serializeAsTexture)("diffuseTexture3")],t.prototype,"_diffuseTexture3",void 0),Object(i.a)([Object(n.expandToProperty)("_markAllSubMeshesAsTexturesDirty")],t.prototype,"diffuseTexture3",void 0),Object(i.a)([Object(n.serializeAsTexture)("bumpTexture1")],t.prototype,"_bumpTexture1",void 0),Object(i.a)([Object(n.expandToProperty)("_markAllSubMeshesAsTexturesDirty")],t.prototype,"bumpTexture1",void 0),Object(i.a)([Object(n.serializeAsTexture)("bumpTexture2")],t.prototype,"_bumpTexture2",void 0),Object(i.a)([Object(n.expandToProperty)("_markAllSubMeshesAsTexturesDirty")],t.prototype,"bumpTexture2",void 0),Object(i.a)([Object(n.serializeAsTexture)("bumpTexture3")],t.prototype,"_bumpTexture3",void 0),Object(i.a)([Object(n.expandToProperty)("_markAllSubMeshesAsTexturesDirty")],t.prototype,"bumpTexture3",void 0),Object(i.a)([Object(n.serializeAsColor3)()],t.prototype,"diffuseColor",void 0),Object(i.a)([Object(n.serializeAsColor3)()],t.prototype,"specularColor",void 0),Object(i.a)([Object(n.serialize)()],t.prototype,"specularPower",void 0),Object(i.a)([Object(n.serialize)("disableLighting")],t.prototype,"_disableLighting",void 0),Object(i.a)([Object(n.expandToProperty)("_markAllSubMeshesAsLightsDirty")],t.prototype,"disableLighting",void 0),Object(i.a)([Object(n.serialize)("maxSimultaneousLights")],t.prototype,"_maxSimultaneousLights",void 0),Object(i.a)([Object(n.expandToProperty)("_markAllSubMeshesAsLightsDirty")],t.prototype,"maxSimultaneousLights",void 0),t}(n.PushMaterial);n._TypeStore.RegisteredTypes["BABYLON.TerrainMaterial"]=a}})}));