Babylon.js/materialsLibrary/dist/babylon.pbrMaterial.min.js

var BABYLON;!function(e){var r=4,n=function(e){function r(){e.call(this),this.DIFFUSE=!1,this.AMBIENT=!1,this.OPACITY=!1,this.OPACITYRGB=!1,this.REFLECTION=!1,this.EMISSIVE=!1,this.SPECULAR=!1,this.BUMP=!1,this.SPECULAROVERALPHA=!1,this.CLIPPLANE=!1,this.ALPHATEST=!1,this.ALPHAFROMDIFFUSE=!1,this.POINTSIZE=!1,this.FOG=!1,this.LIGHT0=!1,this.LIGHT1=!1,this.LIGHT2=!1,this.LIGHT3=!1,this.SPOTLIGHT0=!1,this.SPOTLIGHT1=!1,this.SPOTLIGHT2=!1,this.SPOTLIGHT3=!1,this.HEMILIGHT0=!1,this.HEMILIGHT1=!1,this.HEMILIGHT2=!1,this.HEMILIGHT3=!1,this.POINTLIGHT0=!1,this.POINTLIGHT1=!1,this.POINTLIGHT2=!1,this.POINTLIGHT3=!1,this.DIRLIGHT0=!1,this.DIRLIGHT1=!1,this.DIRLIGHT2=!1,this.DIRLIGHT3=!1,this.SPECULARTERM=!1,this.SHADOW0=!1,this.SHADOW1=!1,this.SHADOW2=!1,this.SHADOW3=!1,this.SHADOWS=!1,this.SHADOWVSM0=!1,this.SHADOWVSM1=!1,this.SHADOWVSM2=!1,this.SHADOWVSM3=!1,this.SHADOWPCF0=!1,this.SHADOWPCF1=!1,this.SHADOWPCF2=!1,this.SHADOWPCF3=!1,this.OPACITYFRESNEL=!1,this.EMISSIVEFRESNEL=!1,this.FRESNEL=!1,this.NORMAL=!1,this.UV1=!1,this.UV2=!1,this.VERTEXCOLOR=!1,this.VERTEXALPHA=!1,this.NUM_BONE_INFLUENCERS=0,this.BonesPerMesh=0,this.INSTANCES=!1,this.GLOSSINESSFROMSPECULARMAP=!1,this.EMISSIVEASILLUMINATION=!1,this.LINKEMISSIVEWITHDIFFUSE=!1,this.LIGHTMAP=!1,this.USELIGHTMAPASSHADOWMAP=!1,this.REFLECTIONMAP_3D=!1,this.REFLECTIONMAP_SPHERICAL=!1,this.REFLECTIONMAP_PLANAR=!1,this.REFLECTIONMAP_CUBIC=!1,this.REFLECTIONMAP_PROJECTION=!1,this.REFLECTIONMAP_SKYBOX=!1,this.REFLECTIONMAP_EXPLICIT=!1,this.REFLECTIONMAP_EQUIRECTANGULAR=!1,this.INVERTCUBICMAP=!1,this.LOGARITHMICDEPTH=!1,this.CAMERATONEMAP=!1,this.CAMERACONTRAST=!1,this.OVERLOADEDVALUES=!1,this.OVERLOADEDSHADOWVALUES=!1,this._keys=Object.keys(this)}return __extends(r,e),r}(e.MaterialDefines),i=function(i){function t(r,t){var o=this;i.call(this,r,t),this.directIntensity=1,this.emissiveIntensity=1,this.environmentIntensity=1,this._lightingInfos=new e.Vector4(this.directIntensity,this.emissiveIntensity,this.environmentIntensity,0),this.overloadedShadowIntensity=1,this.overloadedShadeIntensity=1,this._overloadedShadowInfos=new e.Vector4(this.overloadedShadowIntensity,this.overloadedShadeIntensity,0,0),this.cameraExposure=1,this.cameraContrast=1,this._cameraInfos=new e.Vector4(1,1,0,0),this.overloadedAmbientIntensity=0,this.overloadedDiffuseIntensity=0,this.overloadedSpecularIntensity=0,this.overloadedEmissiveIntensity=0,this._overloadedIntensity=new e.Vector4(this.overloadedAmbientIntensity,this.overloadedDiffuseIntensity,this.overloadedSpecularIntensity,this.overloadedEmissiveIntensity),this.overloadedAmbient=e.Color3.White(),this.overloadedDiffuse=e.Color3.White(),this.overloadedSpecular=e.Color3.White(),this.overloadedEmissive=e.Color3.White(),this.overloadedReflection=e.Color3.White(),this.overloadedGlossiness=0,this.overloadedGlossinessIntensity=0,this.overloadedReflectionIntensity=0,this._overloadedGlossiness=new e.Vector3(this.overloadedGlossiness,this.overloadedGlossinessIntensity,this.overloadedReflectionIntensity),this.disableBumpMap=!1,this.ambientColor=new e.Color3(0,0,0),this.diffuseColor=new e.Color3(1,1,1),this.specularColor=new e.Color3(1,1,1),this.reflectionColor=new e.Color3(.5,.5,.5),this.glossiness=.5,this.emissiveColor=new e.Color3(0,0,0),this.useAlphaFromDiffuseTexture=!1,this.useEmissiveAsIllumination=!1,this.linkEmissiveWithDiffuse=!1,this.useSpecularOverAlpha=!0,this.disableLighting=!1,this.useLightmapAsShadowmap=!1,this.useGlossinessFromSpecularMapAlpha=!1,this._renderTargets=new e.SmartArray(16),this._worldViewProjectionMatrix=e.Matrix.Zero(),this._globalAmbientColor=new e.Color3(0,0,0),this._tempColor=new e.Color3,this._defines=new n,this._cachedDefines=new n,this._myScene=null,this._myShadowGenerator=null,this._cachedDefines.BonesPerMesh=-1,this.getRenderTargetTextures=function(){return o._renderTargets.reset(),o.reflectionTexture&&o.reflectionTexture.isRenderTarget&&o._renderTargets.push(o.reflectionTexture),o._renderTargets}}return __extends(t,i),Object.defineProperty(t.prototype,"useLogarithmicDepth",{get:function(){return this._useLogarithmicDepth},set:function(e){this._useLogarithmicDepth=e&&this.getScene().getEngine().getCaps().fragmentDepthSupported},enumerable:!0,configurable:!0}),t.prototype.needAlphaBlending=function(){return this.alpha<1||null!=this.opacityTexture||this._shouldUseAlphaFromDiffuseTexture()||this.opacityFresnelParameters&&this.opacityFresnelParameters.isEnabled},t.prototype.needAlphaTesting=function(){return null!=this.diffuseTexture&&this.diffuseTexture.hasAlpha},t.prototype._shouldUseAlphaFromDiffuseTexture=function(){return null!=this.diffuseTexture&&this.diffuseTexture.hasAlpha&&this.useAlphaFromDiffuseTexture},t.prototype.getAlphaTestTexture=function(){return this.diffuseTexture},t.prototype._checkCache=function(e,r,n){return r?this._defines.INSTANCES!==n?!1:r._materialDefines&&r._materialDefines.isEqual(this._defines)?!0:!1:!0},t.PrepareDefinesForLights=function(n,i,t){for(var o=0,s=!1,a=0;a<n.lights.length;a++){var f=n.lights[a];if(f.isEnabled()){if(f._excludedMeshesIds.length>0){for(var l=0;l<f._excludedMeshesIds.length;l++){var d=n.getMeshByID(f._excludedMeshesIds[l]);d&&f.excludedMeshes.push(d)}f._excludedMeshesIds=[]}if(f._includedOnlyMeshesIds.length>0){for(var c=0;c<f._includedOnlyMeshesIds.length;c++){var v=n.getMeshByID(f._includedOnlyMeshesIds[c]);v&&f.includedOnlyMeshes.push(v)}f._includedOnlyMeshesIds=[]}if(f.canAffectMesh(i)){s=!0,t["LIGHT"+o]=!0;var u;if(u=f instanceof e.SpotLight?"SPOTLIGHT"+o:f instanceof e.HemisphericLight?"HEMILIGHT"+o:f instanceof e.PointLight?"POINTLIGHT"+o:"DIRLIGHT"+o,t[u]=!0,f.specular.equalsFloats(0,0,0)||(t.SPECULARTERM=!0),n.shadowsEnabled){var h=f.getShadowGenerator();i&&i.receiveShadows&&h&&(t["SHADOW"+o]=!0,t.SHADOWS=!0,(h.useVarianceShadowMap||h.useBlurVarianceShadowMap)&&(t["SHADOWVSM"+o]=!0),h.usePoissonSampling&&(t["SHADOWPCF"+o]=!0))}if(o++,o===r)break}}}return s},t.BindLights=function(n,i,o,s){for(var a=0,f=0;f<n.lights.length;f++){var l=n.lights[f];if(l.isEnabled()&&l.canAffectMesh(i)){if(l instanceof e.PointLight?l.transferToEffect(o,"vLightData"+a):l instanceof e.DirectionalLight?l.transferToEffect(o,"vLightData"+a):l instanceof e.SpotLight?l.transferToEffect(o,"vLightData"+a,"vLightDirection"+a):l instanceof e.HemisphericLight&&l.transferToEffect(o,"vLightData"+a,"vLightGround"+a),l.diffuse.toLinearSpaceToRef(t._scaledDiffuse),t._scaledDiffuse.scaleToRef(l.intensity,t._scaledDiffuse),l.diffuse.scaleToRef(l.intensity,t._scaledDiffuse),o.setColor4("vLightDiffuse"+a,t._scaledDiffuse,l.range),s.SPECULARTERM&&(l.specular.toLinearSpaceToRef(t._scaledSpecular),t._scaledSpecular.scaleToRef(l.intensity,t._scaledSpecular),o.setColor3("vLightSpecular"+a,t._scaledSpecular)),n.shadowsEnabled){var d=l.getShadowGenerator();i.receiveShadows&&d&&(l.needCube()||o.setMatrix("lightMatrix"+a,d.getTransformMatrix()),o.setTexture("shadowSampler"+a,d.getShadowMapForRendering()),o.setFloat3("shadowsInfo"+a,d.getDarkness(),d.getShadowMap().getSize().width,d.bias))}if(a++,a===r)break}}},t.prototype.isReady=function(i,o){if(this.checkReadyOnlyOnce&&this._wasPreviouslyReady)return!0;var s=this.getScene();if(!this.checkReadyOnEveryCall&&this._renderId===s.getRenderId()&&this._checkCache(s,i,o))return!0;var a=s.getEngine(),f=!1,l=!1;if(this._defines.reset(),s.texturesEnabled){if(this.diffuseTexture&&e.StandardMaterial.DiffuseTextureEnabled){if(!this.diffuseTexture.isReady())return!1;l=!0,this._defines.DIFFUSE=!0}if(this.ambientTexture&&e.StandardMaterial.AmbientTextureEnabled){if(!this.ambientTexture.isReady())return!1;l=!0,this._defines.AMBIENT=!0}if(this.opacityTexture&&e.StandardMaterial.OpacityTextureEnabled){if(!this.opacityTexture.isReady())return!1;l=!0,this._defines.OPACITY=!0,this.opacityTexture.getAlphaFromRGB&&(this._defines.OPACITYRGB=!0)}if(this.reflectionTexture&&e.StandardMaterial.ReflectionTextureEnabled){if(!this.reflectionTexture.isReady())return!1;switch(f=!0,this._defines.REFLECTION=!0,this.reflectionTexture.coordinatesMode===e.Texture.INVCUBIC_MODE&&(this._defines.INVERTCUBICMAP=!0),this._defines.REFLECTIONMAP_3D=this.reflectionTexture.isCube,this.reflectionTexture.coordinatesMode){case e.Texture.CUBIC_MODE:case e.Texture.INVCUBIC_MODE:this._defines.REFLECTIONMAP_CUBIC=!0;break;case e.Texture.EXPLICIT_MODE:this._defines.REFLECTIONMAP_EXPLICIT=!0;break;case e.Texture.PLANAR_MODE:this._defines.REFLECTIONMAP_PLANAR=!0;break;case e.Texture.PROJECTION_MODE:this._defines.REFLECTIONMAP_PROJECTION=!0;break;case e.Texture.SKYBOX_MODE:this._defines.REFLECTIONMAP_SKYBOX=!0;break;case e.Texture.SPHERICAL_MODE:this._defines.REFLECTIONMAP_SPHERICAL=!0;break;case e.Texture.EQUIRECTANGULAR_MODE:this._defines.REFLECTIONMAP_EQUIRECTANGULAR=!0}}if(this.lightmapTexture&&e.StandardMaterial.LightmapEnabled){if(!this.lightmapTexture.isReady())return!1;l=!0,this._defines.LIGHTMAP=!0,this._defines.USELIGHTMAPASSHADOWMAP=this.useLightmapAsShadowmap}if(this.emissiveTexture&&e.StandardMaterial.EmissiveTextureEnabled){if(!this.emissiveTexture.isReady())return!1;l=!0,this._defines.EMISSIVE=!0}if(this.specularTexture&&e.StandardMaterial.SpecularTextureEnabled){if(!this.specularTexture.isReady())return!1;l=!0,this._defines.SPECULAR=!0,this._defines.GLOSSINESSFROMSPECULARMAP=this.useGlossinessFromSpecularMapAlpha}}if(s.getEngine().getCaps().standardDerivatives&&this.bumpTexture&&e.StandardMaterial.BumpTextureEnabled&&!this.disableBumpMap){if(!this.bumpTexture.isReady())return!1;l=!0,this._defines.BUMP=!0}if(s.clipPlane&&(this._defines.CLIPPLANE=!0),a.getAlphaTesting()&&(this._defines.ALPHATEST=!0),this._shouldUseAlphaFromDiffuseTexture()&&(this._defines.ALPHAFROMDIFFUSE=!0),this.useEmissiveAsIllumination&&(this._defines.EMISSIVEASILLUMINATION=!0),this.linkEmissiveWithDiffuse&&(this._defines.LINKEMISSIVEWITHDIFFUSE=!0),this.useLogarithmicDepth&&(this._defines.LOGARITHMICDEPTH=!0),1!=this.cameraContrast&&(this._defines.CAMERACONTRAST=!0),1!=this.cameraExposure&&(this._defines.CAMERATONEMAP=!0),(1!=this.overloadedShadeIntensity||1!=this.overloadedShadowIntensity)&&(this._defines.OVERLOADEDSHADOWVALUES=!0),(this.overloadedGlossinessIntensity>0||this.overloadedEmissiveIntensity>0||this.overloadedSpecularIntensity>0||this.overloadedDiffuseIntensity>0||this.overloadedAmbientIntensity>0||this.overloadedReflectionIntensity>0)&&(this._defines.OVERLOADEDVALUES=!0),(this.pointsCloud||s.forcePointsCloud)&&(this._defines.POINTSIZE=!0),s.fogEnabled&&i&&i.applyFog&&s.fogMode!==e.Scene.FOGMODE_NONE&&this.fogEnabled&&(this._defines.FOG=!0),s.lightsEnabled&&!this.disableLighting&&(f=t.PrepareDefinesForLights(s,i,this._defines)),e.StandardMaterial.FresnelEnabled&&(this.opacityFresnelParameters&&this.opacityFresnelParameters.isEnabled||this.emissiveFresnelParameters&&this.emissiveFresnelParameters.isEnabled)&&(this.opacityFresnelParameters&&this.opacityFresnelParameters.isEnabled&&(this._defines.OPACITYFRESNEL=!0),this.emissiveFresnelParameters&&this.emissiveFresnelParameters.isEnabled&&(this._defines.EMISSIVEFRESNEL=!0),f=!0,this._defines.FRESNEL=!0),this._defines.SPECULARTERM&&this.useSpecularOverAlpha&&(this._defines.SPECULAROVERALPHA=!0),i&&(f&&i.isVerticesDataPresent(e.VertexBuffer.NormalKind)&&(this._defines.NORMAL=!0),l&&(i.isVerticesDataPresent(e.VertexBuffer.UVKind)&&(this._defines.UV1=!0),i.isVerticesDataPresent(e.VertexBuffer.UV2Kind)&&(this._defines.UV2=!0)),i.useVertexColors&&i.isVerticesDataPresent(e.VertexBuffer.ColorKind)&&(this._defines.VERTEXCOLOR=!0,i.hasVertexAlpha&&(this._defines.VERTEXALPHA=!0)),i.useBones&&i.computeBonesUsingShaders&&(this._defines.NUM_BONE_INFLUENCERS=i.numBoneInfluencers,this._defines.BonesPerMesh=i.skeleton.bones.length+1),o&&(this._defines.INSTANCES=!0)),!this._defines.isEqual(this._cachedDefines)){this._defines.cloneTo(this._cachedDefines),s.resetCachedMaterial();var d=new e.EffectFallbacks;this._defines.REFLECTION&&d.addFallback(0,"REFLECTION"),this._defines.SPECULAR&&d.addFallback(0,"SPECULAR"),this._defines.BUMP&&d.addFallback(0,"BUMP"),this._defines.SPECULAROVERALPHA&&d.addFallback(0,"SPECULAROVERALPHA"),this._defines.FOG&&d.addFallback(1,"FOG"),this._defines.POINTSIZE&&d.addFallback(0,"POINTSIZE"),this._defines.LOGARITHMICDEPTH&&d.addFallback(0,"LOGARITHMICDEPTH");for(var c=0;r>c;c++)this._defines["LIGHT"+c]&&(c>0&&d.addFallback(c,"LIGHT"+c),this._defines["SHADOW"+c]&&d.addFallback(0,"SHADOW"+c),this._defines["SHADOWPCF"+c]&&d.addFallback(0,"SHADOWPCF"+c),this._defines["SHADOWVSM"+c]&&d.addFallback(0,"SHADOWVSM"+c));this._defines.SPECULARTERM&&d.addFallback(0,"SPECULARTERM"),this._defines.OPACITYFRESNEL&&d.addFallback(1,"OPACITYFRESNEL"),this._defines.EMISSIVEFRESNEL&&d.addFallback(2,"EMISSIVEFRESNEL"),this._defines.FRESNEL&&d.addFallback(3,"FRESNEL"),this._defines.NUM_BONE_INFLUENCERS>0&&d.addCPUSkinningFallback(0,i);var v=[e.VertexBuffer.PositionKind];this._defines.NORMAL&&v.push(e.VertexBuffer.NormalKind),this._defines.UV1&&v.push(e.VertexBuffer.UVKind),this._defines.UV2&&v.push(e.VertexBuffer.UV2Kind),this._defines.VERTEXCOLOR&&v.push(e.VertexBuffer.ColorKind),this._defines.NUM_BONE_INFLUENCERS>0&&(v.push(e.VertexBuffer.MatricesIndicesKind),v.push(e.VertexBuffer.MatricesWeightsKind),this._defines.NUM_BONE_INFLUENCERS>4&&(v.push(e.VertexBuffer.MatricesIndicesExtraKind),v.push(e.VertexBuffer.MatricesWeightsExtraKind))),this._defines.INSTANCES&&(v.push("world0"),v.push("world1"),v.push("world2"),v.push("world3"));var u="pbr";s.getEngine().getCaps().standardDerivatives||(u="legacypbr");var h=this._defines.toString();this._effect=s.getEngine().createEffect(u,v,["world","view","viewProjection","vEyePosition","vLightsType","vAmbientColor","vDiffuseColor","vSpecularColor","vEmissiveColor","vReflectionColor","vLightData0","vLightDiffuse0","vLightSpecular0","vLightDirection0","vLightGround0","lightMatrix0","vLightData1","vLightDiffuse1","vLightSpecular1","vLightDirection1","vLightGround1","lightMatrix1","vLightData2","vLightDiffuse2","vLightSpecular2","vLightDirection2","vLightGround2","lightMatrix2","vLightData3","vLightDiffuse3","vLightSpecular3","vLightDirection3","vLightGround3","lightMatrix3","vFogInfos","vFogColor","pointSize","vDiffuseInfos","vAmbientInfos","vOpacityInfos","vReflectionInfos","vEmissiveInfos","vSpecularInfos","vBumpInfos","vLightmapInfos","mBones","vClipPlane","diffuseMatrix","ambientMatrix","opacityMatrix","reflectionMatrix","emissiveMatrix","specularMatrix","bumpMatrix","lightmapMatrix","shadowsInfo0","shadowsInfo1","shadowsInfo2","shadowsInfo3","opacityParts","emissiveLeftColor","emissiveRightColor","vLightingIntensity","vOverloadedShadowIntensity","vOverloadedIntensity","vCameraInfos","vOverloadedDiffuse","vOverloadedReflection","vOverloadedSpecular","vOverloadedEmissive","vOverloadedGlossiness","logarithmicDepthConstant"],["diffuseSampler","ambientSampler","opacitySampler","reflectionCubeSampler","reflection2DSampler","emissiveSampler","specularSampler","bumpSampler","lightmapSampler","shadowSampler0","shadowSampler1","shadowSampler2","shadowSampler3"],h,d,this.onCompiled,this.onError)}return this._effect.isReady()?(this._renderId=s.getRenderId(),this._wasPreviouslyReady=!0,i&&(i._materialDefines||(i._materialDefines=new n),this._defines.cloneTo(i._materialDefines)),!0):!1},t.prototype.unbind=function(){this.reflectionTexture&&this.reflectionTexture.isRenderTarget&&this._effect.setTexture("reflection2DSampler",null),i.prototype.unbind.call(this)},t.prototype.bindOnlyWorldMatrix=function(e){this._effect.setMatrix("world",e)},t.prototype.bind=function(r,n){this._myScene=this.getScene(),this.bindOnlyWorldMatrix(r),this._effect.setMatrix("viewProjection",this._myScene.getTransformMatrix()),n&&n.useBones&&n.computeBonesUsingShaders&&this._effect.setMatrices("mBones",n.skeleton.getTransformMatrices()),this._myScene.getCachedMaterial()!==this&&(e.StandardMaterial.FresnelEnabled&&(this.opacityFresnelParameters&&this.opacityFresnelParameters.isEnabled&&this._effect.setColor4("opacityParts",new e.Color3(this.opacityFresnelParameters.leftColor.toLuminance(),this.opacityFresnelParameters.rightColor.toLuminance(),this.opacityFresnelParameters.bias),this.opacityFresnelParameters.power),this.emissiveFresnelParameters&&this.emissiveFresnelParameters.isEnabled&&(this._effect.setColor4("emissiveLeftColor",this.emissiveFresnelParameters.leftColor,this.emissiveFresnelParameters.power),this._effect.setColor4("emissiveRightColor",this.emissiveFresnelParameters.rightColor,this.emissiveFresnelParameters.bias))),this.diffuseTexture&&e.StandardMaterial.DiffuseTextureEnabled&&(this._effect.setTexture("diffuseSampler",this.diffuseTexture),this._effect.setFloat2("vDiffuseInfos",this.diffuseTexture.coordinatesIndex,this.diffuseTexture.level),this._effect.setMatrix("diffuseMatrix",this.diffuseTexture.getTextureMatrix())),this.ambientTexture&&e.StandardMaterial.AmbientTextureEnabled&&(this._effect.setTexture("ambientSampler",this.ambientTexture),this._effect.setFloat2("vAmbientInfos",this.ambientTexture.coordinatesIndex,this.ambientTexture.level),this._effect.setMatrix("ambientMatrix",this.ambientTexture.getTextureMatrix())),this.opacityTexture&&e.StandardMaterial.OpacityTextureEnabled&&(this._effect.setTexture("opacitySampler",this.opacityTexture),this._effect.setFloat2("vOpacityInfos",this.opacityTexture.coordinatesIndex,this.opacityTexture.level),this._effect.setMatrix("opacityMatrix",this.opacityTexture.getTextureMatrix())),this.reflectionTexture&&e.StandardMaterial.ReflectionTextureEnabled&&(this.reflectionTexture.isCube?this._effect.setTexture("reflectionCubeSampler",this.reflectionTexture):this._effect.setTexture("reflection2DSampler",this.reflectionTexture),this._effect.setMatrix("reflectionMatrix",this.reflectionTexture.getReflectionTextureMatrix()),this._effect.setFloat2("vReflectionInfos",this.reflectionTexture.level,0)),this.emissiveTexture&&e.StandardMaterial.EmissiveTextureEnabled&&(this._effect.setTexture("emissiveSampler",this.emissiveTexture),this._effect.setFloat2("vEmissiveInfos",this.emissiveTexture.coordinatesIndex,this.emissiveTexture.level),this._effect.setMatrix("emissiveMatrix",this.emissiveTexture.getTextureMatrix())),this.lightmapTexture&&e.StandardMaterial.LightmapEnabled&&(this._effect.setTexture("lightmapSampler",this.lightmapTexture),this._effect.setFloat2("vLightmapInfos",this.lightmapTexture.coordinatesIndex,this.lightmapTexture.level),this._effect.setMatrix("lightmapMatrix",this.lightmapTexture.getTextureMatrix())),this.specularTexture&&e.StandardMaterial.SpecularTextureEnabled&&(this._effect.setTexture("specularSampler",this.specularTexture),this._effect.setFloat2("vSpecularInfos",this.specularTexture.coordinatesIndex,this.specularTexture.level),this._effect.setMatrix("specularMatrix",this.specularTexture.getTextureMatrix())),this.bumpTexture&&this._myScene.getEngine().getCaps().standardDerivatives&&e.StandardMaterial.BumpTextureEnabled&&!this.disableBumpMap&&(this._effect.setTexture("bumpSampler",this.bumpTexture),this._effect.setFloat2("vBumpInfos",this.bumpTexture.coordinatesIndex,1/this.bumpTexture.level),this._effect.setMatrix("bumpMatrix",this.bumpTexture.getTextureMatrix())),this._myScene.clipPlane&&this._effect.setFloat4("vClipPlane",this._myScene.clipPlane.normal.x,this._myScene.clipPlane.normal.y,this._myScene.clipPlane.normal.z,this._myScene.clipPlane.d),this.pointsCloud&&this._effect.setFloat("pointSize",this.pointSize),this._myScene.ambientColor.multiplyToRef(this.ambientColor,this._globalAmbientColor),this.specularColor.toLinearSpaceToRef(t._scaledSpecular),this._effect.setVector3("vEyePosition",this._myScene._mirroredCameraPosition?this._myScene._mirroredCameraPosition:this._myScene.activeCamera.position),this._effect.setColor3("vAmbientColor",this._globalAmbientColor),this._defines.SPECULARTERM&&this._effect.setColor4("vSpecularColor",t._scaledSpecular,this.glossiness),this.emissiveColor.toLinearSpaceToRef(t._scaledEmissive),this._effect.setColor3("vEmissiveColor",t._scaledEmissive),this.reflectionColor.toLinearSpaceToRef(t._scaledReflection),this._effect.setColor3("vReflectionColor",t._scaledReflection)),this.diffuseColor.toLinearSpaceToRef(t._scaledDiffuse),this._effect.setColor4("vDiffuseColor",t._scaledDiffuse,this.alpha*n.visibility),this._myScene.lightsEnabled&&!this.disableLighting&&t.BindLights(this._myScene,n,this._effect,this._defines),(this._myScene.fogEnabled&&n.applyFog&&this._myScene.fogMode!==e.Scene.FOGMODE_NONE||this.reflectionTexture)&&this._effect.setMatrix("view",this._myScene.getViewMatrix()),this._myScene.fogEnabled&&n.applyFog&&this._myScene.fogMode!==e.Scene.FOGMODE_NONE&&(this._effect.setFloat4("vFogInfos",this._myScene.fogMode,this._myScene.fogStart,this._myScene.fogEnd,this._myScene.fogDensity),this._effect.setColor3("vFogColor",this._myScene.fogColor)),this._lightingInfos.x=this.directIntensity,this._lightingInfos.y=this.emissiveIntensity,this._lightingInfos.z=this.environmentIntensity,this._effect.setVector4("vLightingIntensity",this._lightingInfos),this._overloadedShadowInfos.x=this.overloadedShadowIntensity,this._overloadedShadowInfos.y=this.overloadedShadeIntensity,this._effect.setVector4("vOverloadedShadowIntensity",this._overloadedShadowInfos),this._cameraInfos.x=this.cameraExposure,this._cameraInfos.y=this.cameraContrast,this._effect.setVector4("vCameraInfos",this._cameraInfos),this._overloadedIntensity.x=this.overloadedAmbientIntensity,this._overloadedIntensity.y=this.overloadedDiffuseIntensity,this._overloadedIntensity.z=this.overloadedSpecularIntensity,this._overloadedIntensity.w=this.overloadedEmissiveIntensity,this._effect.setVector4("vOverloadedIntensity",this._overloadedIntensity),this.overloadedAmbient.toLinearSpaceToRef(this._tempColor),this._effect.setColor3("vOverloadedAmbient",this._tempColor),this.overloadedDiffuse.toLinearSpaceToRef(this._tempColor),this._effect.setColor3("vOverloadedDiffuse",this._tempColor),this.overloadedSpecular.toLinearSpaceToRef(this._tempColor),this._effect.setColor3("vOverloadedSpecular",this._tempColor),this.overloadedEmissive.toLinearSpaceToRef(this._tempColor),this._effect.setColor3("vOverloadedEmissive",this._tempColor),this.overloadedReflection.toLinearSpaceToRef(this._tempColor),this._effect.setColor3("vOverloadedReflection",this._tempColor),this._overloadedGlossiness.x=this.overloadedGlossiness,this._overloadedGlossiness.y=this.overloadedGlossinessIntensity,this._overloadedGlossiness.z=this.overloadedReflectionIntensity,this._effect.setVector3("vOverloadedGlossiness",this._overloadedGlossiness),this._defines.LOGARITHMICDEPTH&&this._effect.setFloat("logarithmicDepthConstant",2/(Math.log(this._myScene.activeCamera.maxZ+1)/Math.LN2)),i.prototype.bind.call(this,r,n),this._myScene=null},t.prototype.getAnimatables=function(){var e=[];return this.diffuseTexture&&this.diffuseTexture.animations&&this.diffuseTexture.animations.length>0&&e.push(this.diffuseTexture),this.ambientTexture&&this.ambientTexture.animations&&this.ambientTexture.animations.length>0&&e.push(this.ambientTexture),this.opacityTexture&&this.opacityTexture.animations&&this.opacityTexture.animations.length>0&&e.push(this.opacityTexture),this.reflectionTexture&&this.reflectionTexture.animations&&this.reflectionTexture.animations.length>0&&e.push(this.reflectionTexture),this.emissiveTexture&&this.emissiveTexture.animations&&this.emissiveTexture.animations.length>0&&e.push(this.emissiveTexture),this.specularTexture&&this.specularTexture.animations&&this.specularTexture.animations.length>0&&e.push(this.specularTexture),this.bumpTexture&&this.bumpTexture.animations&&this.bumpTexture.animations.length>0&&e.push(this.bumpTexture),e},t.prototype.dispose=function(e){this.diffuseTexture&&this.diffuseTexture.dispose(),this.ambientTexture&&this.ambientTexture.dispose(),this.opacityTexture&&this.opacityTexture.dispose(),this.reflectionTexture&&this.reflectionTexture.dispose(),this.emissiveTexture&&this.emissiveTexture.dispose(),this.specularTexture&&this.specularTexture.dispose(),this.bumpTexture&&this.bumpTexture.dispose(),i.prototype.dispose.call(this,e)},t.prototype.clone=function(e){var r=new t(e,this.getScene());return this.copyTo(r),r.directIntensity=this.directIntensity,r.emissiveIntensity=this.emissiveIntensity,r.environmentIntensity=this.environmentIntensity,r.cameraExposure=this.cameraExposure,r.cameraContrast=this.cameraContrast,r.overloadedShadowIntensity=this.overloadedShadowIntensity,r.overloadedShadeIntensity=this.overloadedShadeIntensity,r.overloadedAmbientIntensity=this.overloadedAmbientIntensity,r.overloadedDiffuseIntensity=this.overloadedDiffuseIntensity,r.overloadedSpecularIntensity=this.overloadedSpecularIntensity,r.overloadedEmissiveIntensity=this.overloadedEmissiveIntensity,r.overloadedAmbient=this.overloadedAmbient,r.overloadedDiffuse=this.overloadedDiffuse,r.overloadedSpecular=this.overloadedSpecular,r.overloadedEmissive=this.overloadedEmissive,r.overloadedReflection=this.overloadedReflection,r.overloadedGlossiness=this.overloadedGlossiness,r.overloadedGlossinessIntensity=this.overloadedGlossinessIntensity,r.overloadedReflectionIntensity=this.overloadedReflectionIntensity,r.disableBumpMap=this.disableBumpMap,this.diffuseTexture&&this.diffuseTexture.clone&&(r.diffuseTexture=this.diffuseTexture.clone()),this.ambientTexture&&this.ambientTexture.clone&&(r.ambientTexture=this.ambientTexture.clone()),this.opacityTexture&&this.opacityTexture.clone&&(r.opacityTexture=this.opacityTexture.clone()),this.reflectionTexture&&this.reflectionTexture.clone&&(r.reflectionTexture=this.reflectionTexture.clone()),this.emissiveTexture&&this.emissiveTexture.clone&&(r.emissiveTexture=this.emissiveTexture.clone()),this.specularTexture&&this.specularTexture.clone&&(r.specularTexture=this.specularTexture.clone()),this.bumpTexture&&this.bumpTexture.clone&&(r.bumpTexture=this.bumpTexture.clone()),this.lightmapTexture&&this.lightmapTexture.clone&&(r.lightmapTexture=this.lightmapTexture.clone(),r.useLightmapAsShadowmap=this.useLightmapAsShadowmap),r.ambientColor=this.ambientColor.clone(),r.diffuseColor=this.diffuseColor.clone(),r.specularColor=this.specularColor.clone(),r.reflectionColor=this.reflectionColor.clone(),r.glossiness=this.glossiness,r.emissiveColor=this.emissiveColor.clone(),r.useAlphaFromDiffuseTexture=this.useAlphaFromDiffuseTexture,r.useEmissiveAsIllumination=this.useEmissiveAsIllumination,r.useGlossinessFromSpecularMapAlpha=this.useGlossinessFromSpecularMapAlpha,r.useSpecularOverAlpha=this.useSpecularOverAlpha,r.emissiveFresnelParameters=this.emissiveFresnelParameters.clone(),r.opacityFresnelParameters=this.opacityFresnelParameters.clone(),r},t.prototype.serialize=function(){var e=i.prototype.serialize.call(this);return e.customType="BABYLON.PBRMaterial",e.directIntensity=this.directIntensity,e.emissiveIntensity=this.emissiveIntensity,e.environmentIntensity=this.environmentIntensity,e.cameraExposure=this.cameraExposure,e.cameraContrast=this.cameraContrast,e.overloadedShadowIntensity=this.overloadedShadowIntensity,e.overloadedShadeIntensity=this.overloadedShadeIntensity,e.overloadedAmbientIntensity=this.overloadedAmbientIntensity,e.overloadedDiffuseIntensity=this.overloadedDiffuseIntensity,e.overloadedSpecularIntensity=this.overloadedSpecularIntensity,e.overloadedEmissiveIntensity=this.overloadedEmissiveIntensity,e.overloadedAmbient=this.overloadedAmbient.asArray(),e.overloadedDiffuse=this.overloadedDiffuse.asArray(),e.overloadedSpecular=this.overloadedSpecular.asArray(),e.overloadedEmissive=this.overloadedEmissive.asArray(),e.overloadedReflection=this.overloadedReflection.asArray(),e.overloadedGlossiness=this.overloadedGlossiness,e.overloadedGlossinessIntensity=this.overloadedGlossinessIntensity,e.overloadedReflectionIntensity=this.overloadedReflectionIntensity,e.disableBumpMap=this.disableBumpMap,this.diffuseTexture&&(e.diffuseTexture=this.diffuseTexture.serialize()),this.ambientTexture&&(e.ambientTexture=this.ambientTexture.serialize()),this.opacityTexture&&(e.opacityTexture=this.opacityTexture.serialize()),this.reflectionTexture&&(e.reflectionTexture=this.reflectionTexture.serialize()),this.emissiveTexture&&(e.emissiveTexture=this.emissiveTexture.serialize()),this.specularTexture&&(e.specularTexture=this.specularTexture.serialize()),this.bumpTexture&&(e.bumpTexture=this.bumpTexture.serialize()),this.lightmapTexture&&(e.lightmapTexture=this.lightmapTexture.serialize(),e.useLightmapAsShadowmap=this.useLightmapAsShadowmap),e.ambientColor=this.ambientColor.asArray(),e.diffuseColor=this.diffuseColor.asArray(),e.specularColor=this.specularColor.asArray(),e.reflectionColor=this.reflectionColor.asArray(),e.glossiness=this.glossiness,e.emissiveColor=this.emissiveColor.asArray(),e.useAlphaFromDiffuseTexture=this.useAlphaFromDiffuseTexture,e.useEmissiveAsIllumination=this.useEmissiveAsIllumination,e.useGlossinessFromSpecularMapAlpha=this.useGlossinessFromSpecularMapAlpha,e.useSpecularOverAlpha=this.useSpecularOverAlpha,e.emissiveFresnelParameters=this.emissiveFresnelParameters.serialize(),e.opacityFresnelParameters=this.opacityFresnelParameters.serialize(),e},t.Parse=function(r,n,i){var o=new t(r.name,n);return o.alpha=r.alpha,o.id=r.id,r.disableDepthWrite&&(o.disableDepthWrite=r.disableDepthWrite),r.checkReadyOnlyOnce&&(o.checkReadyOnlyOnce=r.checkReadyOnlyOnce),e.Tags.AddTagsTo(o,r.tags),o.backFaceCulling=r.backFaceCulling,o.wireframe=r.wireframe,o.directIntensity=r.directIntensity,o.emissiveIntensity=r.emissiveIntensity,o.environmentIntensity=r.environmentIntensity,o.cameraExposure=r.cameraExposure,o.cameraContrast=r.cameraContrast,o.overloadedShadowIntensity=r.overloadedShadowIntensity,o.overloadedShadeIntensity=r.overloadedShadeIntensity,o.overloadedAmbientIntensity=r.overloadedAmbientIntensity,o.overloadedDiffuseIntensity=r.overloadedDiffuseIntensity,o.overloadedSpecularIntensity=r.overloadedSpecularIntensity,o.overloadedEmissiveIntensity=r.overloadedEmissiveIntensity,o.overloadedAmbient=e.Color3.FromArray(r.overloadedAmbient),o.overloadedDiffuse=e.Color3.FromArray(r.overloadedDiffuse),o.overloadedSpecular=e.Color3.FromArray(r.overloadedSpecular),o.overloadedEmissive=e.Color3.FromArray(r.overloadedEmissive),o.overloadedReflection=e.Color3.FromArray(r.overloadedReflection),o.overloadedGlossiness=r.overloadedGlossiness,o.overloadedGlossinessIntensity=r.overloadedGlossinessIntensity,o.overloadedReflectionIntensity=r.overloadedReflectionIntensity,o.disableBumpMap=r.disableBumpMap,r.diffuseTexture&&(o.diffuseTexture=e.Texture.Parse(r.diffuseTexture,n,i)),r.ambientTexture&&(o.ambientTexture=e.Texture.Parse(r.ambientTexture,n,i)),r.opacityTexture&&(o.opacityTexture=e.Texture.Parse(r.opacityTexture,n,i)),r.reflectionTexture&&(o.reflectionTexture=e.Texture.Parse(r.reflectionTexture,n,i)),r.emissiveTexture&&(o.emissiveTexture=e.Texture.Parse(r.emissiveTexture,n,i)),r.specularTexture&&(o.specularTexture=e.Texture.Parse(r.specularTexture,n,i)),r.bumpTexture&&(o.bumpTexture=e.Texture.Parse(r.bumpTexture,n,i)),r.lightmapTexture&&(o.lightmapTexture=e.Texture.Parse(r.lightmapTexture,n,i),o.useLightmapAsShadowmap=r.useLightmapAsShadowmap),o.ambientColor=e.Color3.FromArray(r.ambient),o.diffuseColor=e.Color3.FromArray(r.diffuse),o.specularColor=e.Color3.FromArray(r.specular),o.reflectionColor=e.Color3.FromArray(r.reflectionColor),o.glossiness=r.glossiness,o.emissiveColor=e.Color3.FromArray(r.emissive),o.useAlphaFromDiffuseTexture=r.useAlphaFromDiffuseTexture,o.useEmissiveAsIllumination=r.useEmissiveAsIllumination,o.useGlossinessFromSpecularMapAlpha=r.useGlossinessFromSpecularMapAlpha,o.useSpecularOverAlpha=r.useSpecularOverAlpha,o.emissiveFresnelParameters=e.FresnelParameters.Parse(r.emissiveFresnelParameters),o.opacityFresnelParameters=e.FresnelParameters.Parse(r.opacityFresnelParameters),o},t._scaledDiffuse=new e.Color3,t._scaledSpecular=new e.Color3,t._scaledEmissive=new e.Color3,t._scaledReflection=new e.Color3,t}(e.Material);e.PBRMaterial=i}(BABYLON||(BABYLON={})),BABYLON.Effect.ShadersStore.pbrVertexShader="precision highp float;\r\n\r\n// Attributes\r\nattribute vec3 position;\r\n#ifdef NORMAL\r\nattribute vec3 normal;\r\n#endif\r\n#ifdef UV1\r\nattribute vec2 uv;\r\n#endif\r\n#ifdef UV2\r\nattribute vec2 uv2;\r\n#endif\r\n#ifdef VERTEXCOLOR\r\nattribute vec4 color;\r\n#endif\r\n#if NUM_BONE_INFLUENCERS > 0\r\nuniform mat4 mBones[BonesPerMesh];\r\n\r\nattribute vec4 matricesIndices;\r\nattribute vec4 matricesWeights;\r\n#if NUM_BONE_INFLUENCERS > 4\r\nattribute vec4 matricesIndicesExtra;\r\nattribute vec4 matricesWeightsExtra;\r\n#endif\r\n#endif\r\n\r\n// Uniforms\r\n\r\n#ifdef INSTANCES\r\nattribute vec4 world0;\r\nattribute vec4 world1;\r\nattribute vec4 world2;\r\nattribute vec4 world3;\r\n#else\r\nuniform mat4 world;\r\n#endif\r\n\r\nuniform mat4 view;\r\nuniform mat4 viewProjection;\r\n\r\n#ifdef DIFFUSE\r\nvarying vec2 vDiffuseUV;\r\nuniform mat4 diffuseMatrix;\r\nuniform vec2 vDiffuseInfos;\r\n#endif\r\n\r\n#ifdef AMBIENT\r\nvarying vec2 vAmbientUV;\r\nuniform mat4 ambientMatrix;\r\nuniform vec2 vAmbientInfos;\r\n#endif\r\n\r\n#ifdef OPACITY\r\nvarying vec2 vOpacityUV;\r\nuniform mat4 opacityMatrix;\r\nuniform vec2 vOpacityInfos;\r\n#endif\r\n\r\n#ifdef EMISSIVE\r\nvarying vec2 vEmissiveUV;\r\nuniform vec2 vEmissiveInfos;\r\nuniform mat4 emissiveMatrix;\r\n#endif\r\n\r\n#ifdef LIGHTMAP\r\nvarying vec2 vLightmapUV;\r\nuniform vec2 vLightmapInfos;\r\nuniform mat4 lightmapMatrix;\r\n#endif\r\n\r\n#if defined(SPECULAR) && defined(SPECULARTERM)\r\nvarying vec2 vSpecularUV;\r\nuniform vec2 vSpecularInfos;\r\nuniform mat4 specularMatrix;\r\n#endif\r\n\r\n#ifdef BUMP\r\nvarying vec2 vBumpUV;\r\nuniform vec2 vBumpInfos;\r\nuniform mat4 bumpMatrix;\r\n#endif\r\n\r\n#ifdef POINTSIZE\r\nuniform float pointSize;\r\n#endif\r\n\r\n// Output\r\nvarying vec3 vPositionW;\r\n#ifdef NORMAL\r\nvarying vec3 vNormalW;\r\n#endif\r\n\r\n#ifdef VERTEXCOLOR\r\nvarying vec4 vColor;\r\n#endif\r\n\r\n#ifdef CLIPPLANE\r\nuniform vec4 vClipPlane;\r\nvarying float fClipDistance;\r\n#endif\r\n\r\n#ifdef FOG\r\nvarying float fFogDistance;\r\n#endif\r\n\r\n#ifdef SHADOWS\r\n#if defined(SPOTLIGHT0) || defined(DIRLIGHT0)\r\nuniform mat4 lightMatrix0;\r\nvarying vec4 vPositionFromLight0;\r\n#endif\r\n#if defined(SPOTLIGHT1) || defined(DIRLIGHT1)\r\nuniform mat4 lightMatrix1;\r\nvarying vec4 vPositionFromLight1;\r\n#endif\r\n#if defined(SPOTLIGHT2) || defined(DIRLIGHT2)\r\nuniform mat4 lightMatrix2;\r\nvarying vec4 vPositionFromLight2;\r\n#endif\r\n#if defined(SPOTLIGHT3) || defined(DIRLIGHT3)\r\nuniform mat4 lightMatrix3;\r\nvarying vec4 vPositionFromLight3;\r\n#endif\r\n#endif\r\n\r\n#ifdef REFLECTIONMAP_SKYBOX\r\nvarying vec3 vPositionUVW;\r\n#endif\r\n\r\n#ifdef REFLECTIONMAP_EQUIRECTANGULAR\r\nvarying vec3 vDirectionW;\r\n#endif\r\n\r\n#ifdef LOGARITHMICDEPTH\r\nuniform float logarithmicDepthConstant;\r\nvarying float vFragmentDepth;\r\n#endif\r\n\r\nvoid main(void) {\r\n\r\n#ifdef REFLECTIONMAP_SKYBOX\r\n    vPositionUVW = position;\r\n#endif \r\n\r\n#ifdef INSTANCES\r\n    mat4 finalWorld = mat4(world0, world1, world2, world3);\r\n#else\r\n    mat4 finalWorld = world;\r\n#endif\r\n\r\n#if NUM_BONE_INFLUENCERS > 0\r\n    mat4 influence;\r\n    influence = mBones[int(matricesIndices[0])] * matricesWeights[0];\r\n\r\n#if NUM_BONE_INFLUENCERS > 1\r\n    influence += mBones[int(matricesIndices[1])] * matricesWeights[1];\r\n#endif \r\n#if NUM_BONE_INFLUENCERS > 2\r\n    influence += mBones[int(matricesIndices[2])] * matricesWeights[2];\r\n#endif	\r\n#if NUM_BONE_INFLUENCERS > 3\r\n    influence += mBones[int(matricesIndices[3])] * matricesWeights[3];\r\n#endif	\r\n\r\n#if NUM_BONE_INFLUENCERS > 4\r\n    influence += mBones[int(matricesIndicesExtra[0])] * matricesWeightsExtra[0];\r\n#endif\r\n#if NUM_BONE_INFLUENCERS > 5\r\n    influence += mBones[int(matricesIndicesExtra[1])] * matricesWeightsExtra[1];\r\n#endif	\r\n#if NUM_BONE_INFLUENCERS > 6\r\n    influence += mBones[int(matricesIndicesExtra[2])] * matricesWeightsExtra[2];\r\n#endif	\r\n#if NUM_BONE_INFLUENCERS > 7\r\n    influence += mBones[int(matricesIndicesExtra[3])] * matricesWeightsExtra[3];\r\n#endif	\r\n\r\n    finalWorld = finalWorld * influence;\r\n#endif\r\n\r\n    gl_Position = viewProjection * finalWorld * vec4(position, 1.0);\r\n\r\n    vec4 worldPos = finalWorld * vec4(position, 1.0);\r\n    vPositionW = vec3(worldPos);\r\n\r\n#ifdef NORMAL\r\n    vNormalW = normalize(vec3(finalWorld * vec4(normal, 0.0)));\r\n#endif\r\n\r\n#ifdef REFLECTIONMAP_EQUIRECTANGULAR\r\n    vDirectionW = normalize(vec3(finalWorld * vec4(position, 0.0)));\r\n#endif\r\n\r\n    // Texture coordinates\r\n#ifndef UV1\r\n    vec2 uv = vec2(0., 0.);\r\n#endif\r\n#ifndef UV2\r\n    vec2 uv2 = vec2(0., 0.);\r\n#endif\r\n\r\n#ifdef DIFFUSE\r\n    if (vDiffuseInfos.x == 0.)\r\n    {\r\n        vDiffuseUV = vec2(diffuseMatrix * vec4(uv, 1.0, 0.0));\r\n    }\r\n    else\r\n    {\r\n        vDiffuseUV = vec2(diffuseMatrix * vec4(uv2, 1.0, 0.0));\r\n    }\r\n#endif\r\n\r\n#ifdef AMBIENT\r\n    if (vAmbientInfos.x == 0.)\r\n    {\r\n        vAmbientUV = vec2(ambientMatrix * vec4(uv, 1.0, 0.0));\r\n    }\r\n    else\r\n    {\r\n        vAmbientUV = vec2(ambientMatrix * vec4(uv2, 1.0, 0.0));\r\n    }\r\n#endif\r\n\r\n#ifdef OPACITY\r\n    if (vOpacityInfos.x == 0.)\r\n    {\r\n        vOpacityUV = vec2(opacityMatrix * vec4(uv, 1.0, 0.0));\r\n    }\r\n    else\r\n    {\r\n        vOpacityUV = vec2(opacityMatrix * vec4(uv2, 1.0, 0.0));\r\n    }\r\n#endif\r\n\r\n#ifdef EMISSIVE\r\n    if (vEmissiveInfos.x == 0.)\r\n    {\r\n        vEmissiveUV = vec2(emissiveMatrix * vec4(uv, 1.0, 0.0));\r\n    }\r\n    else\r\n    {\r\n        vEmissiveUV = vec2(emissiveMatrix * vec4(uv2, 1.0, 0.0));\r\n    }\r\n#endif\r\n\r\n#ifdef LIGHTMAP\r\n    if (vLightmapInfos.x == 0.)\r\n    {\r\n        vLightmapUV = vec2(lightmapMatrix * vec4(uv, 1.0, 0.0));\r\n    }\r\n    else\r\n    {\r\n        vLightmapUV = vec2(lightmapMatrix * vec4(uv2, 1.0, 0.0));\r\n    }\r\n#endif\r\n\r\n#if defined(SPECULAR) && defined(SPECULARTERM)\r\n    if (vSpecularInfos.x == 0.)\r\n    {\r\n        vSpecularUV = vec2(specularMatrix * vec4(uv, 1.0, 0.0));\r\n    }\r\n    else\r\n    {\r\n        vSpecularUV = vec2(specularMatrix * vec4(uv2, 1.0, 0.0));\r\n    }\r\n#endif\r\n\r\n#ifdef BUMP\r\n    if (vBumpInfos.x == 0.)\r\n    {\r\n        vBumpUV = vec2(bumpMatrix * vec4(uv, 1.0, 0.0));\r\n    }\r\n    else\r\n    {\r\n        vBumpUV = vec2(bumpMatrix * vec4(uv2, 1.0, 0.0));\r\n    }\r\n#endif\r\n\r\n    // Clip plane\r\n#ifdef CLIPPLANE\r\n    fClipDistance = dot(worldPos, vClipPlane);\r\n#endif\r\n\r\n    // Fog\r\n#ifdef FOG\r\n    fFogDistance = (view * worldPos).z;\r\n#endif\r\n\r\n    // Shadows\r\n#ifdef SHADOWS\r\n#if defined(SPOTLIGHT0) || defined(DIRLIGHT0)\r\n    vPositionFromLight0 = lightMatrix0 * worldPos;\r\n#endif\r\n#if defined(SPOTLIGHT1) || defined(DIRLIGHT1)\r\n    vPositionFromLight1 = lightMatrix1 * worldPos;\r\n#endif\r\n#if defined(SPOTLIGHT2) || defined(DIRLIGHT2)\r\n    vPositionFromLight2 = lightMatrix2 * worldPos;\r\n#endif\r\n#if defined(SPOTLIGHT3) || defined(DIRLIGHT3)\r\n    vPositionFromLight3 = lightMatrix3 * worldPos;\r\n#endif\r\n#endif\r\n\r\n    // Vertex color\r\n#ifdef VERTEXCOLOR\r\n    vColor = color;\r\n#endif\r\n\r\n    // Point size\r\n#ifdef POINTSIZE\r\n    gl_PointSize = pointSize;\r\n#endif\r\n\r\n    // Log. depth\r\n#ifdef LOGARITHMICDEPTH\r\n    vFragmentDepth = 1.0 + gl_Position.w;\r\n    gl_Position.z = log2(max(0.000001, vFragmentDepth)) * logarithmicDepthConstant;\r\n#endif\r\n}",
BABYLON.Effect.ShadersStore.pbrPixelShader="#ifdef BUMP\r\n#extension GL_OES_standard_derivatives : enable\r\n#endif\r\n\r\n#ifdef LOGARITHMICDEPTH\r\n#extension GL_EXT_frag_depth : enable\r\n#endif\r\n\r\nprecision highp float;\r\n\r\n// Constants\r\n#define RECIPROCAL_PI2 0.15915494\r\n#define FRESNEL_MAXIMUM_ON_ROUGH 0.25\r\n\r\nuniform vec3 vEyePosition;\r\nuniform vec3 vAmbientColor;\r\nuniform vec3 vReflectionColor;\r\nuniform vec4 vDiffuseColor;\r\n\r\n// CUSTOM CONTROLS\r\nuniform vec4 vLightingIntensity;\r\nuniform vec4 vCameraInfos;\r\n\r\n#ifdef OVERLOADEDVALUES\r\n    uniform vec4 vOverloadedIntensity;\r\n    uniform vec3 vOverloadedAmbient;\r\n    uniform vec3 vOverloadedDiffuse;\r\n    uniform vec3 vOverloadedSpecular;\r\n    uniform vec3 vOverloadedEmissive;\r\n    uniform vec3 vOverloadedReflection;\r\n    uniform vec3 vOverloadedGlossiness;\r\n#endif\r\n\r\n#ifdef OVERLOADEDSHADOWVALUES\r\n    uniform vec4 vOverloadedShadowIntensity;\r\n#endif\r\n\r\n// PBR CUSTOM CONSTANTS\r\nconst float kPi = 3.1415926535897932384626433832795;\r\n\r\n// PBR HELPER METHODS\r\nfloat Square(float value)\r\n{\r\n    return value * value;\r\n}\r\n\r\nfloat getLuminance(vec3 color)\r\n{\r\n    return clamp(dot(color, vec3(0.2126, 0.7152, 0.0722)), 0., 1.);\r\n}\r\n\r\nfloat convertRoughnessToAverageSlope(float roughness)\r\n{\r\n    // Calculate AlphaG as square of roughness; add epsilon to avoid numerical issues\r\n    const float kMinimumVariance = 0.0005;\r\n    float alphaG = Square(roughness) + kMinimumVariance;\r\n    return alphaG;\r\n}\r\n\r\n// From Microfacet Models for Refraction through Rough Surfaces, Walter et al. 2007\r\nfloat smithVisibilityG1_TrowbridgeReitzGGX(float dot, float alphaG)\r\n{\r\n    float tanSquared = (1.0 - dot * dot) / (dot * dot);\r\n    return 2.0 / (1.0 + sqrt(1.0 + alphaG * alphaG * tanSquared));\r\n}\r\n\r\nfloat smithVisibilityG_TrowbridgeReitzGGX_Walter(float NdotL, float NdotV, float alphaG)\r\n{\r\n    return smithVisibilityG1_TrowbridgeReitzGGX(NdotL, alphaG) * smithVisibilityG1_TrowbridgeReitzGGX(NdotV, alphaG);\r\n}\r\n\r\n// Trowbridge-Reitz (GGX)\r\n// Generalised Trowbridge-Reitz with gamma power=2.0\r\nfloat normalDistributionFunction_TrowbridgeReitzGGX(float NdotH, float alphaG)\r\n{\r\n    // Note: alphaG is average slope (gradient) of the normals in slope-space.\r\n    // It is also the (trigonometric) tangent of the median distribution value, i.e. 50% of normals have\r\n    // a tangent (gradient) closer to the macrosurface than this slope.\r\n    float a2 = Square(alphaG);\r\n    float d = NdotH * NdotH * (a2 - 1.0) + 1.0;\r\n    return a2 / (kPi * d * d);\r\n}\r\n\r\nvec3 fresnelSchlickGGX(float VdotH, vec3 reflectance0, vec3 reflectance90)\r\n{\r\n    return reflectance0 + (reflectance90 - reflectance0) * pow(clamp(1.0 - VdotH, 0., 1.), 5.0);\r\n}\r\n\r\nvec3 FresnelSchlickEnvironmentGGX(float VdotN, vec3 reflectance0, vec3 reflectance90, float smoothness)\r\n{\r\n    // Schlick fresnel approximation, extended with basic smoothness term so that rough surfaces do not approach reflectance90 at grazing angle\r\n    float weight = mix(FRESNEL_MAXIMUM_ON_ROUGH, 1.0, smoothness);\r\n    return reflectance0 + weight * (reflectance90 - reflectance0) * pow(clamp(1.0 - VdotN, 0., 1.), 5.0);\r\n}\r\n\r\n// Cook Torance Specular computation.\r\nvec3 computeSpecularTerm(float NdotH, float NdotL, float NdotV, float VdotH, float roughness, vec3 specularColor)\r\n{\r\n    float alphaG = convertRoughnessToAverageSlope(roughness);\r\n    float distribution = normalDistributionFunction_TrowbridgeReitzGGX(NdotH, alphaG);\r\n    float visibility = smithVisibilityG_TrowbridgeReitzGGX_Walter(NdotL, NdotV, alphaG);\r\n    visibility /= (4.0 * NdotL * NdotV); // Cook Torance Denominator  integated in viibility to avoid issues when visibility function changes.\r\n\r\n    vec3 fresnel = fresnelSchlickGGX(VdotH, specularColor, vec3(1., 1., 1.));\r\n\r\n    float specTerm = max(0., visibility * distribution) * NdotL;\r\n    return fresnel * specTerm * kPi; // TODO: audit pi constants\r\n}\r\n\r\nfloat computeDiffuseTerm(float NdotL, float NdotV, float VdotH, float roughness)\r\n{\r\n    // Diffuse fresnel falloff as per Disney principled BRDF, and in the spirit of\r\n    // of general coupled diffuse/specular models e.g. Ashikhmin Shirley.\r\n    float diffuseFresnelNV = pow(clamp(1.0 - NdotL, 0.000001, 1.), 5.0);\r\n    float diffuseFresnelNL = pow(clamp(1.0 - NdotV, 0.000001, 1.), 5.0);\r\n    float diffuseFresnel90 = 0.5 + 2.0 * VdotH * VdotH * roughness;\r\n    float diffuseFresnelTerm =\r\n        (1.0 + (diffuseFresnel90 - 1.0) * diffuseFresnelNL) *\r\n        (1.0 + (diffuseFresnel90 - 1.0) * diffuseFresnelNV);\r\n\r\n\r\n    return diffuseFresnelTerm * NdotL;\r\n    // PI Test\r\n    // diffuseFresnelTerm /= kPi;\r\n}\r\n\r\nfloat computeDefaultGlossiness(float glossiness, vec3 specularColor)\r\n{\r\n    float kSpecularNoAlphaWorkflow_SmoothnessMax = 0.95;\r\n\r\n    float specularLuminance = getLuminance(specularColor);\r\n    float specularLuma = sqrt(specularLuminance);\r\n    glossiness = specularLuma * kSpecularNoAlphaWorkflow_SmoothnessMax;\r\n\r\n    return glossiness;\r\n}\r\n\r\nvec3 toLinearSpace(vec3 color)\r\n{\r\n    return vec3(pow(color.r, 2.2), pow(color.g, 2.2), pow(color.b, 2.2));\r\n}\r\n\r\nvec3 toGammaSpace(vec3 color)\r\n{\r\n    return vec3(pow(color.r, 1.0 / 2.2), pow(color.g, 1.0 / 2.2), pow(color.b, 1.0 / 2.2));\r\n}\r\n\r\n#ifdef CAMERATONEMAP\r\n    vec3 toneMaps(vec3 color)\r\n    {\r\n        color = max(color, 0.0);\r\n\r\n        // TONE MAPPING / EXPOSURE\r\n        color.rgb = color.rgb * vCameraInfos.x;\r\n\r\n        float tuning = 1.5; // TODO: sync up so e.g. 18% greys are matched to exposure appropriately\r\n        // PI Test\r\n        // tuning *=  kPi;\r\n        vec3 tonemapped = 1.0 - exp2(-color.rgb * tuning); // simple local photographic tonemapper\r\n        color.rgb = mix(color.rgb, tonemapped, 1.0);\r\n        return color;\r\n    }\r\n#endif\r\n\r\n#ifdef CAMERACONTRAST\r\n    vec4 contrasts(vec4 color)\r\n    {\r\n        color = clamp(color, 0.0, 1.0);\r\n\r\n        vec3 resultHighContrast = color.rgb * color.rgb * (3.0 - 2.0 * color.rgb);\r\n        float contrast = vCameraInfos.y;\r\n        if (contrast < 1.0)\r\n        {\r\n            // Decrease contrast: interpolate towards zero-contrast image (flat grey)\r\n            color.rgb = mix(vec3(0.5, 0.5, 0.5), color.rgb, contrast);\r\n        }\r\n        else\r\n        {\r\n            // Increase contrast: apply simple shoulder-toe high contrast curve\r\n            color.rgb = mix(color.rgb, resultHighContrast, contrast - 1.0);\r\n        }\r\n\r\n        return color;\r\n    }\r\n#endif\r\n// END PBR HELPER METHODS\r\n\r\n#ifdef SPECULARTERM\r\nuniform vec4 vSpecularColor;\r\n#endif\r\nuniform vec3 vEmissiveColor;\r\n\r\n// Input\r\nvarying vec3 vPositionW;\r\n\r\n#ifdef NORMAL\r\nvarying vec3 vNormalW;\r\n#endif\r\n\r\n#ifdef VERTEXCOLOR\r\nvarying vec4 vColor;\r\n#endif\r\n\r\n// Lights\r\n#ifdef LIGHT0\r\nuniform vec4 vLightData0;\r\nuniform vec4 vLightDiffuse0;\r\n#ifdef SPECULARTERM\r\nuniform vec3 vLightSpecular0;\r\n#endif\r\n#ifdef SHADOW0\r\n#if defined(SPOTLIGHT0) || defined(DIRLIGHT0)\r\nvarying vec4 vPositionFromLight0;\r\nuniform sampler2D shadowSampler0;\r\n#else\r\nuniform samplerCube shadowSampler0;\r\n#endif\r\nuniform vec3 shadowsInfo0;\r\n#endif\r\n#ifdef SPOTLIGHT0\r\nuniform vec4 vLightDirection0;\r\n#endif\r\n#ifdef HEMILIGHT0\r\nuniform vec3 vLightGround0;\r\n#endif\r\n#endif\r\n\r\n#ifdef LIGHT1\r\nuniform vec4 vLightData1;\r\nuniform vec4 vLightDiffuse1;\r\n#ifdef SPECULARTERM\r\nuniform vec3 vLightSpecular1;\r\n#endif\r\n#ifdef SHADOW1\r\n#if defined(SPOTLIGHT1) || defined(DIRLIGHT1)\r\nvarying vec4 vPositionFromLight1;\r\nuniform sampler2D shadowSampler1;\r\n#else\r\nuniform samplerCube shadowSampler1;\r\n#endif\r\nuniform vec3 shadowsInfo1;\r\n#endif\r\n#ifdef SPOTLIGHT1\r\nuniform vec4 vLightDirection1;\r\n#endif\r\n#ifdef HEMILIGHT1\r\nuniform vec3 vLightGround1;\r\n#endif\r\n#endif\r\n\r\n#ifdef LIGHT2\r\nuniform vec4 vLightData2;\r\nuniform vec4 vLightDiffuse2;\r\n#ifdef SPECULARTERM\r\nuniform vec3 vLightSpecular2;\r\n#endif\r\n#ifdef SHADOW2\r\n#if defined(SPOTLIGHT2) || defined(DIRLIGHT2)\r\nvarying vec4 vPositionFromLight2;\r\nuniform sampler2D shadowSampler2;\r\n#else\r\nuniform samplerCube shadowSampler2;\r\n#endif\r\nuniform vec3 shadowsInfo2;\r\n#endif\r\n#ifdef SPOTLIGHT2\r\nuniform vec4 vLightDirection2;\r\n#endif\r\n#ifdef HEMILIGHT2\r\nuniform vec3 vLightGround2;\r\n#endif\r\n#endif\r\n\r\n#ifdef LIGHT3\r\nuniform vec4 vLightData3;\r\nuniform vec4 vLightDiffuse3;\r\n#ifdef SPECULARTERM\r\nuniform vec3 vLightSpecular3;\r\n#endif\r\n#ifdef SHADOW3\r\n#if defined(SPOTLIGHT3) || defined(DIRLIGHT3)\r\nvarying vec4 vPositionFromLight3;\r\nuniform sampler2D shadowSampler3;\r\n#else\r\nuniform samplerCube shadowSampler3;\r\n#endif\r\nuniform vec3 shadowsInfo3;\r\n#endif\r\n#ifdef SPOTLIGHT3\r\nuniform vec4 vLightDirection3;\r\n#endif\r\n#ifdef HEMILIGHT3\r\nuniform vec3 vLightGround3;\r\n#endif\r\n#endif\r\n\r\n// Samplers\r\n#ifdef DIFFUSE\r\nvarying vec2 vDiffuseUV;\r\nuniform sampler2D diffuseSampler;\r\nuniform vec2 vDiffuseInfos;\r\n#endif\r\n\r\n#ifdef AMBIENT\r\nvarying vec2 vAmbientUV;\r\nuniform sampler2D ambientSampler;\r\nuniform vec2 vAmbientInfos;\r\n#endif\r\n\r\n#ifdef OPACITY	\r\nvarying vec2 vOpacityUV;\r\nuniform sampler2D opacitySampler;\r\nuniform vec2 vOpacityInfos;\r\n#endif\r\n\r\n#ifdef EMISSIVE\r\nvarying vec2 vEmissiveUV;\r\nuniform vec2 vEmissiveInfos;\r\nuniform sampler2D emissiveSampler;\r\n#endif\r\n\r\n#ifdef LIGHTMAP\r\nvarying vec2 vLightmapUV;\r\nuniform vec2 vLightmapInfos;\r\nuniform sampler2D lightmapSampler;\r\n#endif\r\n\r\n#if defined(SPECULAR) && defined(SPECULARTERM)\r\nvarying vec2 vSpecularUV;\r\nuniform vec2 vSpecularInfos;\r\nuniform sampler2D specularSampler;\r\n#endif\r\n\r\n// Fresnel\r\n#ifdef FRESNEL\r\nfloat computeFresnelTerm(vec3 viewDirection, vec3 worldNormal, float bias, float power)\r\n{\r\n    float fresnelTerm = pow(bias + abs(dot(viewDirection, worldNormal)), power);\r\n    return clamp(fresnelTerm, 0., 1.);\r\n}\r\n#endif\r\n\r\n#ifdef OPACITYFRESNEL\r\nuniform vec4 opacityParts;\r\n#endif\r\n\r\n#ifdef EMISSIVEFRESNEL\r\nuniform vec4 emissiveLeftColor;\r\nuniform vec4 emissiveRightColor;\r\n#endif\r\n\r\n// Reflection\r\n#ifdef REFLECTION\r\nuniform vec2 vReflectionInfos;\r\n\r\n#ifdef REFLECTIONMAP_3D\r\nuniform samplerCube reflectionCubeSampler;\r\n#else\r\nuniform sampler2D reflection2DSampler;\r\n#endif\r\n\r\n#ifdef REFLECTIONMAP_SKYBOX\r\nvarying vec3 vPositionUVW;\r\n#else\r\n#ifdef REFLECTIONMAP_EQUIRECTANGULAR\r\nvarying vec3 vDirectionW;\r\n#endif\r\n\r\n#if defined(REFLECTIONMAP_PLANAR) || defined(REFLECTIONMAP_CUBIC) || defined(REFLECTIONMAP_PROJECTION)\r\nuniform mat4 reflectionMatrix;\r\n#endif\r\n#if defined(REFLECTIONMAP_SPHERICAL) || defined(REFLECTIONMAP_PROJECTION)\r\nuniform mat4 view;\r\n#endif\r\n#endif\r\n\r\nvec3 computeReflectionCoords(vec4 worldPos, vec3 worldNormal)\r\n{\r\n#ifdef REFLECTIONMAP_EQUIRECTANGULAR\r\n    vec3 direction = normalize(vDirectionW);\r\n\r\n    float t = clamp(direction.y * -0.5 + 0.5, 0., 1.0);\r\n    float s = atan(direction.z, direction.x) * RECIPROCAL_PI2 + 0.5;\r\n\r\n    return vec3(s, t, 0);\r\n#endif\r\n\r\n#ifdef REFLECTIONMAP_SPHERICAL\r\n    vec3 viewDir = normalize(vec3(view * worldPos));\r\n    vec3 viewNormal = normalize(vec3(view * vec4(worldNormal, 0.0)));\r\n\r\n    vec3 r = reflect(viewDir, viewNormal);\r\n    r.z = r.z - 1.0;\r\n\r\n    float m = 2.0 * length(r);\r\n\r\n    return vec3(r.x / m + 0.5, 1.0 - r.y / m - 0.5, 0);\r\n#endif\r\n\r\n#ifdef REFLECTIONMAP_PLANAR\r\n    vec3 viewDir = worldPos.xyz - vEyePosition;\r\n    vec3 coords = normalize(reflect(viewDir, worldNormal));\r\n\r\n    return vec3(reflectionMatrix * vec4(coords, 1));\r\n#endif\r\n\r\n#ifdef REFLECTIONMAP_CUBIC\r\n    vec3 viewDir = worldPos.xyz - vEyePosition;\r\n    vec3 coords = reflect(viewDir, worldNormal);\r\n#ifdef INVERTCUBICMAP\r\n    coords.y = 1.0 - coords.y;\r\n#endif\r\n    return vec3(reflectionMatrix * vec4(coords, 0));\r\n#endif\r\n\r\n#ifdef REFLECTIONMAP_PROJECTION\r\n    return vec3(reflectionMatrix * (view * worldPos));\r\n#endif\r\n\r\n#ifdef REFLECTIONMAP_SKYBOX\r\n    return vPositionUVW;\r\n#endif\r\n\r\n#ifdef REFLECTIONMAP_EXPLICIT\r\n    return vec3(0, 0, 0);\r\n#endif\r\n}\r\n\r\n#endif\r\n\r\n// Shadows\r\n#ifdef SHADOWS\r\n\r\nfloat unpack(vec4 color)\r\n{\r\n    const vec4 bit_shift = vec4(1.0 / (255.0 * 255.0 * 255.0), 1.0 / (255.0 * 255.0), 1.0 / 255.0, 1.0);\r\n    return dot(color, bit_shift);\r\n}\r\n\r\n#if defined(POINTLIGHT0) || defined(POINTLIGHT1) || defined(POINTLIGHT2) || defined(POINTLIGHT3)\r\nfloat computeShadowCube(vec3 lightPosition, samplerCube shadowSampler, float darkness, float bias)\r\n{\r\n    vec3 directionToLight = vPositionW - lightPosition;\r\n    float depth = length(directionToLight);\r\n\r\n    depth = clamp(depth, 0., 1.);\r\n\r\n    directionToLight.y = 1.0 - directionToLight.y;\r\n\r\n    float shadow = unpack(textureCube(shadowSampler, directionToLight)) + bias;\r\n\r\n    if (depth > shadow)\r\n    {\r\n#ifdef OVERLOADEDSHADOWVALUES\r\n        return mix(1.0, darkness, vOverloadedShadowIntensity.x);\r\n#else\r\n        return darkness;\r\n#endif\r\n    }\r\n    return 1.0;\r\n}\r\n\r\nfloat computeShadowWithPCFCube(vec3 lightPosition, samplerCube shadowSampler, float mapSize, float bias, float darkness)\r\n{\r\n    vec3 directionToLight = vPositionW - lightPosition;\r\n    float depth = length(directionToLight);\r\n    float diskScale = (1.0 - (1.0 + depth * 3.0)) / mapSize;\r\n\r\n    depth = clamp(depth, 0., 1.);\r\n\r\n    directionToLight.y = 1.0 - directionToLight.y;\r\n\r\n    float visibility = 1.;\r\n\r\n    vec3 poissonDisk[4];\r\n    poissonDisk[0] = vec3(-1.0, 1.0, -1.0);\r\n    poissonDisk[1] = vec3(1.0, -1.0, -1.0);\r\n    poissonDisk[2] = vec3(-1.0, -1.0, -1.0);\r\n    poissonDisk[3] = vec3(1.0, -1.0, 1.0);\r\n\r\n    // Poisson Sampling\r\n    float biasedDepth = depth - bias;\r\n\r\n    if (unpack(textureCube(shadowSampler, directionToLight + poissonDisk[0] * diskScale)) < biasedDepth) visibility -= 0.25;\r\n    if (unpack(textureCube(shadowSampler, directionToLight + poissonDisk[1] * diskScale)) < biasedDepth) visibility -= 0.25;\r\n    if (unpack(textureCube(shadowSampler, directionToLight + poissonDisk[2] * diskScale)) < biasedDepth) visibility -= 0.25;\r\n    if (unpack(textureCube(shadowSampler, directionToLight + poissonDisk[3] * diskScale)) < biasedDepth) visibility -= 0.25;\r\n\r\n#ifdef OVERLOADEDSHADOWVALUES\r\n    return  min(1.0, mix(1.0, visibility + darkness, vOverloadedShadowIntensity.x));\r\n#else\r\n    return  min(1.0, visibility + darkness);\r\n#endif\r\n}\r\n#endif\r\n\r\n#if defined(SPOTLIGHT0) || defined(SPOTLIGHT1) || defined(SPOTLIGHT2) || defined(SPOTLIGHT3) ||  defined(DIRLIGHT0) || defined(DIRLIGHT1) || defined(DIRLIGHT2) || defined(DIRLIGHT3)\r\nfloat computeShadow(vec4 vPositionFromLight, sampler2D shadowSampler, float darkness, float bias)\r\n{\r\n    vec3 depth = vPositionFromLight.xyz / vPositionFromLight.w;\r\n    depth = 0.5 * depth + vec3(0.5);\r\n    vec2 uv = depth.xy;\r\n\r\n    if (uv.x < 0. || uv.x > 1.0 || uv.y < 0. || uv.y > 1.0)\r\n    {\r\n        return 1.0;\r\n    }\r\n\r\n    float shadow = unpack(texture2D(shadowSampler, uv)) + bias;\r\n\r\n    if (depth.z > shadow)\r\n    {\r\n#ifdef OVERLOADEDSHADOWVALUES\r\n        return mix(1.0, darkness, vOverloadedShadowIntensity.x);\r\n#else\r\n        return darkness;\r\n#endif\r\n    }\r\n    return 1.;\r\n}\r\n\r\nfloat computeShadowWithPCF(vec4 vPositionFromLight, sampler2D shadowSampler, float mapSize, float bias, float darkness)\r\n{\r\n    vec3 depth = vPositionFromLight.xyz / vPositionFromLight.w;\r\n    depth = 0.5 * depth + vec3(0.5);\r\n    vec2 uv = depth.xy;\r\n\r\n    if (uv.x < 0. || uv.x > 1.0 || uv.y < 0. || uv.y > 1.0)\r\n    {\r\n        return 1.0;\r\n    }\r\n\r\n    float visibility = 1.;\r\n\r\n    vec2 poissonDisk[4];\r\n    poissonDisk[0] = vec2(-0.94201624, -0.39906216);\r\n    poissonDisk[1] = vec2(0.94558609, -0.76890725);\r\n    poissonDisk[2] = vec2(-0.094184101, -0.92938870);\r\n    poissonDisk[3] = vec2(0.34495938, 0.29387760);\r\n\r\n    // Poisson Sampling\r\n    float biasedDepth = depth.z - bias;\r\n\r\n    if (unpack(texture2D(shadowSampler, uv + poissonDisk[0] / mapSize)) < biasedDepth) visibility -= 0.25;\r\n    if (unpack(texture2D(shadowSampler, uv + poissonDisk[1] / mapSize)) < biasedDepth) visibility -= 0.25;\r\n    if (unpack(texture2D(shadowSampler, uv + poissonDisk[2] / mapSize)) < biasedDepth) visibility -= 0.25;\r\n    if (unpack(texture2D(shadowSampler, uv + poissonDisk[3] / mapSize)) < biasedDepth) visibility -= 0.25;\r\n\r\n#ifdef OVERLOADEDSHADOWVALUES\r\n    return  min(1.0, mix(1.0, visibility + darkness, vOverloadedShadowIntensity.x));\r\n#else\r\n    return  min(1.0, visibility + darkness);\r\n#endif\r\n}\r\n\r\n// Thanks to http://devmaster.net/\r\nfloat unpackHalf(vec2 color)\r\n{\r\n    return color.x + (color.y / 255.0);\r\n}\r\n\r\nfloat linstep(float low, float high, float v) {\r\n    return clamp((v - low) / (high - low), 0.0, 1.0);\r\n}\r\n\r\nfloat ChebychevInequality(vec2 moments, float compare, float bias)\r\n{\r\n    float p = smoothstep(compare - bias, compare, moments.x);\r\n    float variance = max(moments.y - moments.x * moments.x, 0.02);\r\n    float d = compare - moments.x;\r\n    float p_max = linstep(0.2, 1.0, variance / (variance + d * d));\r\n\r\n    return clamp(max(p, p_max), 0.0, 1.0);\r\n}\r\n\r\nfloat computeShadowWithVSM(vec4 vPositionFromLight, sampler2D shadowSampler, float bias, float darkness)\r\n{\r\n    vec3 depth = vPositionFromLight.xyz / vPositionFromLight.w;\r\n    depth = 0.5 * depth + vec3(0.5);\r\n    vec2 uv = depth.xy;\r\n\r\n    if (uv.x < 0. || uv.x > 1.0 || uv.y < 0. || uv.y > 1.0 || depth.z >= 1.0)\r\n    {\r\n        return 1.0;\r\n    }\r\n\r\n    vec4 texel = texture2D(shadowSampler, uv);\r\n\r\n    vec2 moments = vec2(unpackHalf(texel.xy), unpackHalf(texel.zw));\r\n#ifdef OVERLOADEDSHADOWVALUES\r\n    return min(1.0, mix(1.0, 1.0 - ChebychevInequality(moments, depth.z, bias) + darkness, vOverloadedShadowIntensity.x));\r\n#else\r\n    return min(1.0, 1.0 - ChebychevInequality(moments, depth.z, bias) + darkness);\r\n#endif\r\n}\r\n#endif\r\n\r\n#endif\r\n\r\n// Bump\r\n#ifdef BUMP\r\nvarying vec2 vBumpUV;\r\nuniform vec2 vBumpInfos;\r\nuniform sampler2D bumpSampler;\r\n\r\n// Thanks to http://www.thetenthplanet.de/archives/1180\r\nmat3 cotangent_frame(vec3 normal, vec3 p, vec2 uv)\r\n{\r\n    // get edge vectors of the pixel triangle\r\n    vec3 dp1 = dFdx(p);\r\n    vec3 dp2 = dFdy(p);\r\n    vec2 duv1 = dFdx(uv);\r\n    vec2 duv2 = dFdy(uv);\r\n\r\n    // solve the linear system\r\n    vec3 dp2perp = cross(dp2, normal);\r\n    vec3 dp1perp = cross(normal, dp1);\r\n    vec3 tangent = dp2perp * duv1.x + dp1perp * duv2.x;\r\n    vec3 binormal = dp2perp * duv1.y + dp1perp * duv2.y;\r\n\r\n    // construct a scale-invariant frame \r\n    float invmax = inversesqrt(max(dot(tangent, tangent), dot(binormal, binormal)));\r\n    return mat3(tangent * invmax, binormal * invmax, normal);\r\n}\r\n\r\nvec3 perturbNormal(vec3 viewDir)\r\n{\r\n    vec3 map = texture2D(bumpSampler, vBumpUV).xyz;\r\n    map = map * 255. / 127. - 128. / 127.;\r\n    mat3 TBN = cotangent_frame(vNormalW * vBumpInfos.y, -viewDir, vBumpUV);\r\n    return normalize(TBN * map);\r\n}\r\n#endif\r\n\r\n#ifdef CLIPPLANE\r\nvarying float fClipDistance;\r\n#endif\r\n\r\n#ifdef LOGARITHMICDEPTH\r\nuniform float logarithmicDepthConstant;\r\nvarying float vFragmentDepth;\r\n#endif\r\n\r\n// Fog\r\n#ifdef FOG\r\n\r\n#define FOGMODE_NONE    0.\r\n#define FOGMODE_EXP     1.\r\n#define FOGMODE_EXP2    2.\r\n#define FOGMODE_LINEAR  3.\r\n#define E 2.71828\r\n\r\nuniform vec4 vFogInfos;\r\nuniform vec3 vFogColor;\r\nvarying float fFogDistance;\r\n\r\nfloat CalcFogFactor()\r\n{\r\n    float fogCoeff = 1.0;\r\n    float fogStart = vFogInfos.y;\r\n    float fogEnd = vFogInfos.z;\r\n    float fogDensity = vFogInfos.w;\r\n\r\n    if (FOGMODE_LINEAR == vFogInfos.x)\r\n    {\r\n        fogCoeff = (fogEnd - fFogDistance) / (fogEnd - fogStart);\r\n    }\r\n    else if (FOGMODE_EXP == vFogInfos.x)\r\n    {\r\n        fogCoeff = 1.0 / pow(E, fFogDistance * fogDensity);\r\n    }\r\n    else if (FOGMODE_EXP2 == vFogInfos.x)\r\n    {\r\n        fogCoeff = 1.0 / pow(E, fFogDistance * fFogDistance * fogDensity * fogDensity);\r\n    }\r\n\r\n    return clamp(fogCoeff, 0.0, 1.0);\r\n}\r\n#endif\r\n\r\n// Light Computing\r\nstruct lightingInfo\r\n{\r\n    vec3 diffuse;\r\n#ifdef SPECULARTERM\r\n    vec3 specular;\r\n#endif\r\n};\r\n\r\nlightingInfo computeLighting(vec3 viewDirectionW, vec3 vNormal, vec4 lightData, vec3 diffuseColor, vec3 specularColor, float range, float roughness, float NdotV) {\r\n    lightingInfo result;\r\n\r\n    vec3 lightVectorW;\r\n    float attenuation = 1.0;\r\n    if (lightData.w == 0.)\r\n    {\r\n        vec3 direction = lightData.xyz - vPositionW;\r\n\r\n        attenuation = max(0., 1.0 - length(direction) / range);\r\n        lightVectorW = normalize(direction);\r\n    }\r\n    else\r\n    {\r\n        lightVectorW = normalize(-lightData.xyz);\r\n    }\r\n\r\n    // diffuse\r\n    vec3 H = normalize(viewDirectionW + lightVectorW);\r\n    float NdotL = max(0.00000000001, dot(vNormal, lightVectorW));\r\n    float VdotH = clamp(0.00000000001, 1.0, dot(viewDirectionW, H));\r\n\r\n    float diffuseTerm = computeDiffuseTerm(NdotL, NdotV, VdotH, roughness);\r\n    result.diffuse = diffuseTerm * diffuseColor * attenuation;\r\n\r\n#ifdef SPECULARTERM\r\n    // Specular\r\n    float NdotH = max(0.00000000001, dot(vNormal, H));\r\n\r\n    vec3 specTerm = computeSpecularTerm(NdotH, NdotL, NdotV, VdotH, roughness, specularColor);\r\n    result.specular = specTerm * attenuation;\r\n#endif\r\n\r\n    return result;\r\n}\r\n\r\nlightingInfo computeSpotLighting(vec3 viewDirectionW, vec3 vNormal, vec4 lightData, vec4 lightDirection, vec3 diffuseColor, vec3 specularColor, float range, float roughness, float NdotV) {\r\n    lightingInfo result;\r\n\r\n    vec3 direction = lightData.xyz - vPositionW;\r\n    vec3 lightVectorW = normalize(direction);\r\n    float attenuation = max(0., 1.0 - length(direction) / range);\r\n\r\n    // diffuse\r\n    float cosAngle = max(0.0000001, dot(-lightDirection.xyz, lightVectorW));\r\n    float spotAtten = 0.0;\r\n\r\n    if (cosAngle >= lightDirection.w)\r\n    {\r\n        cosAngle = max(0., pow(cosAngle, lightData.w));\r\n        spotAtten = clamp((cosAngle - lightDirection.w) / (1. - cosAngle), 0.0, 1.0);\r\n\r\n        // Diffuse\r\n        vec3 H = normalize(viewDirectionW - lightDirection.xyz);\r\n        float NdotL = max(0.00000000001, dot(vNormal, -lightDirection.xyz));\r\n        float VdotH = clamp(dot(viewDirectionW, H), 0.00000000001, 1.0);\r\n\r\n        float diffuseTerm = computeDiffuseTerm(NdotL, NdotV, VdotH, roughness);\r\n        result.diffuse = diffuseTerm * diffuseColor * attenuation * spotAtten;\r\n\r\n#ifdef SPECULARTERM\r\n        // Specular\r\n        float NdotH = max(0.00000000001, dot(vNormal, H));\r\n\r\n        vec3 specTerm = computeSpecularTerm(NdotH, NdotL, NdotV, VdotH, roughness, specularColor);\r\n        result.specular = specTerm  * attenuation * spotAtten;\r\n#endif\r\n\r\n        return result;\r\n    }\r\n\r\n    result.diffuse = vec3(0.);\r\n#ifdef SPECULARTERM\r\n    result.specular = vec3(0.);\r\n#endif\r\n\r\n    return result;\r\n}\r\n\r\nlightingInfo computeHemisphericLighting(vec3 viewDirectionW, vec3 vNormal, vec4 lightData, vec3 diffuseColor, vec3 specularColor, vec3 groundColor, float roughness, float NdotV) {\r\n    lightingInfo result;\r\n\r\n    vec3 lightVectorW = normalize(lightData.xyz);\r\n\r\n    // Diffuse\r\n    float ndl = dot(vNormal, lightData.xyz) * 0.5 + 0.5;\r\n    result.diffuse = mix(groundColor, diffuseColor, ndl);\r\n\r\n#ifdef SPECULARTERM\r\n    // Specular\r\n    vec3 H = normalize(viewDirectionW + lightVectorW);\r\n    float NdotH = max(0.00000000001, dot(vNormal, H));\r\n    float NdotL = max(0.00000000001, ndl);\r\n    float VdotH = clamp(0.00000000001, 1.0, dot(viewDirectionW, H));\r\n\r\n    vec3 specTerm = computeSpecularTerm(NdotH, NdotL, NdotV, VdotH, roughness, specularColor);\r\n    result.specular = specTerm;\r\n#endif\r\n\r\n    return result;\r\n}\r\n\r\nvoid main(void) {\r\n    // Clip plane\r\n#ifdef CLIPPLANE\r\n    if (fClipDistance > 0.0)\r\n        discard;\r\n#endif\r\n\r\n    vec3 viewDirectionW = normalize(vEyePosition - vPositionW);\r\n\r\n    // Base color\r\n    vec4 baseColor = vec4(1., 1., 1., 1.);\r\n    vec3 diffuseColor = vDiffuseColor.rgb;\r\n    \r\n    // Alpha\r\n    float alpha = vDiffuseColor.a;\r\n\r\n#ifdef DIFFUSE\r\n    baseColor = texture2D(diffuseSampler, vDiffuseUV);\r\n    baseColor = vec4(toLinearSpace(baseColor.rgb), baseColor.a);\r\n\r\n#ifdef ALPHATEST\r\n    if (baseColor.a < 0.4)\r\n        discard;\r\n#endif\r\n\r\n#ifdef ALPHAFROMDIFFUSE\r\n    alpha *= baseColor.a;\r\n#endif\r\n\r\n    baseColor.rgb *= vDiffuseInfos.y;\r\n#endif\r\n\r\n#ifdef VERTEXCOLOR\r\n    baseColor.rgb *= vColor.rgb;\r\n#endif\r\n\r\n#ifdef OVERLOADEDVALUES\r\n    baseColor.rgb = mix(baseColor.rgb, vOverloadedDiffuse, vOverloadedIntensity.y);\r\n    diffuseColor.rgb = mix(diffuseColor.rgb, vOverloadedDiffuse, vOverloadedIntensity.y);\r\n#endif\r\n\r\n    // Bump\r\n#ifdef NORMAL\r\n    vec3 normalW = normalize(vNormalW);\r\n#else\r\n    vec3 normalW = vec3(1.0, 1.0, 1.0);\r\n#endif\r\n\r\n\r\n#ifdef BUMP\r\n    normalW = perturbNormal(viewDirectionW);\r\n#endif\r\n\r\n    // Ambient color\r\n    vec3 baseAmbientColor = vec3(1., 1., 1.);\r\n\r\n#ifdef AMBIENT\r\n    baseAmbientColor = texture2D(ambientSampler, vAmbientUV).rgb * vAmbientInfos.y;\r\n    \r\n    #ifdef OVERLOADEDVALUES\r\n        baseAmbientColor.rgb = mix(baseAmbientColor.rgb, vOverloadedAmbient, vOverloadedIntensity.x);\r\n    #endif\r\n#endif\r\n\r\n    // Specular map\r\n#ifdef SPECULARTERM\r\n    float glossiness = vSpecularColor.a;\r\n    vec3 specularColor = vSpecularColor.rgb;\r\n    \r\n    #ifdef OVERLOADEDVALUES\r\n        specularColor.rgb = mix(specularColor.rgb, vOverloadedSpecular, vOverloadedIntensity.z);\r\n    #endif\r\n\r\n    #ifdef SPECULAR\r\n        vec4 specularMapColor = texture2D(specularSampler, vSpecularUV);\r\n        specularColor = toLinearSpace(specularMapColor.rgb);\r\n\r\n        #ifdef OVERLOADEDVALUES\r\n                specularColor.rgb = mix(specularColor.rgb, vOverloadedSpecular, vOverloadedIntensity.z);\r\n        #endif\r\n\r\n        #ifdef GLOSSINESSFROMSPECULARMAP\r\n            glossiness = specularMapColor.a;\r\n        #else\r\n            glossiness = computeDefaultGlossiness(glossiness, specularColor);\r\n        #endif\r\n    #endif\r\n\r\n    #ifdef OVERLOADEDVALUES\r\n        glossiness = mix(glossiness, vOverloadedGlossiness.x, vOverloadedGlossiness.y);\r\n    #endif\r\n#else\r\n    float glossiness = 0.;\r\n    #ifdef OVERLOADEDVALUES\r\n        glossiness = mix(glossiness, vOverloadedGlossiness.x, vOverloadedGlossiness.y);\r\n    #endif\r\n    \r\n    vec3 specularColor = vec3(0., 0., 0);\r\n    #ifdef OVERLOADEDVALUES\r\n        specularColor.rgb = mix(specularColor.rgb, vOverloadedSpecular, vOverloadedIntensity.z);\r\n    #endif\r\n#endif\r\n\r\n    // Apply Energy Conservation taking in account the environment level only if the environment is present.\r\n    float reflectance = max(max(specularColor.r, specularColor.g), specularColor.b);\r\n    baseColor.rgb = (1. - reflectance) * baseColor.rgb;\r\n\r\n    // Compute Specular Fresnel + Reflectance.\r\n    float NdotV = max(0.00000000001, dot(normalW, viewDirectionW));\r\n\r\n    // Adapt glossiness.\r\n    glossiness = clamp(glossiness, 0., 1.) * 0.98;\r\n\r\n    // Call rough to not conflict with previous one.\r\n    float rough = clamp(1. - glossiness, 0.000001, 1.0);\r\n\r\n    // Lighting\r\n    vec3 diffuseBase = vec3(0., 0., 0.);\r\n    \r\n#ifdef OVERLOADEDSHADOWVALUES\r\n    vec3 shadowedOnlyDiffuseBase = vec3(1., 1., 1.);\r\n#endif\r\n\r\n#ifdef SPECULARTERM\r\n    vec3 specularBase = vec3(0., 0., 0.);\r\n#endif\r\n    float shadow = 1.;\r\n\r\n#ifdef LIGHT0\r\n#ifndef SPECULARTERM\r\n    vec3 vLightSpecular0 = vec3(0.0);\r\n#endif\r\n#ifdef SPOTLIGHT0\r\n    lightingInfo info = computeSpotLighting(viewDirectionW, normalW, vLightData0, vLightDirection0, vLightDiffuse0.rgb, vLightSpecular0, vLightDiffuse0.a, rough, NdotV);\r\n#endif\r\n#ifdef HEMILIGHT0\r\n    lightingInfo info = computeHemisphericLighting(viewDirectionW, normalW, vLightData0, vLightDiffuse0.rgb, vLightSpecular0, vLightGround0, rough, NdotV);\r\n#endif\r\n#if defined(POINTLIGHT0) || defined(DIRLIGHT0)\r\n    lightingInfo info = computeLighting(viewDirectionW, normalW, vLightData0, vLightDiffuse0.rgb, vLightSpecular0, vLightDiffuse0.a, rough, NdotV);\r\n#endif\r\n#ifdef SHADOW0\r\n#ifdef SHADOWVSM0\r\n    shadow = computeShadowWithVSM(vPositionFromLight0, shadowSampler0, shadowsInfo0.z, shadowsInfo0.x);\r\n#else\r\n#ifdef SHADOWPCF0\r\n#if defined(POINTLIGHT0)\r\n    shadow = computeShadowWithPCFCube(vLightData0.xyz, shadowSampler0, shadowsInfo0.y, shadowsInfo0.z, shadowsInfo0.x);\r\n#else\r\n    shadow = computeShadowWithPCF(vPositionFromLight0, shadowSampler0, shadowsInfo0.y, shadowsInfo0.z, shadowsInfo0.x);\r\n#endif\r\n#else\r\n#if defined(POINTLIGHT0)\r\n    shadow = computeShadowCube(vLightData0.xyz, shadowSampler0, shadowsInfo0.x, shadowsInfo0.z);\r\n#else\r\n    shadow = computeShadow(vPositionFromLight0, shadowSampler0, shadowsInfo0.x, shadowsInfo0.z);\r\n#endif\r\n#endif\r\n#endif\r\n#else\r\n    shadow = 1.;\r\n#endif\r\n    diffuseBase += info.diffuse * shadow;\r\n#ifdef OVERLOADEDSHADOWVALUES\r\n    shadowedOnlyDiffuseBase *= shadow;\r\n#endif\r\n\r\n#ifdef SPECULARTERM\r\n    specularBase += info.specular * shadow;\r\n#endif\r\n#endif\r\n\r\n#ifdef LIGHT1\r\n#ifndef SPECULARTERM\r\n    vec3 vLightSpecular1 = vec3(0.0);\r\n#endif\r\n#ifdef SPOTLIGHT1\r\n    info = computeSpotLighting(viewDirectionW, normalW, vLightData1, vLightDirection1, vLightDiffuse1.rgb, vLightSpecular1, vLightDiffuse1.a, rough, NdotV);\r\n#endif\r\n#ifdef HEMILIGHT1\r\n    info = computeHemisphericLighting(viewDirectionW, normalW, vLightData1, vLightDiffuse1.rgb, vLightSpecular1, vLightGround1, rough, NdotV);\r\n#endif\r\n#if defined(POINTLIGHT1) || defined(DIRLIGHT1)\r\n    info = computeLighting(viewDirectionW, normalW, vLightData1, vLightDiffuse1.rgb, vLightSpecular1, vLightDiffuse1.a, rough, NdotV);\r\n#endif\r\n#ifdef SHADOW1\r\n#ifdef SHADOWVSM1\r\n    shadow = computeShadowWithVSM(vPositionFromLight1, shadowSampler1, shadowsInfo1.z, shadowsInfo1.x);\r\n#else\r\n#ifdef SHADOWPCF1\r\n#if defined(POINTLIGHT1)\r\n    shadow = computeShadowWithPCFCube(vLightData1.xyz, shadowSampler1, shadowsInfo1.y, shadowsInfo1.z, shadowsInfo1.x);\r\n#else\r\n    shadow = computeShadowWithPCF(vPositionFromLight1, shadowSampler1, shadowsInfo1.y, shadowsInfo1.z, shadowsInfo1.x);\r\n#endif\r\n#else\r\n#if defined(POINTLIGHT1)\r\n    shadow = computeShadowCube(vLightData1.xyz, shadowSampler1, shadowsInfo1.x, shadowsInfo1.z);\r\n#else\r\n    shadow = computeShadow(vPositionFromLight1, shadowSampler1, shadowsInfo1.x, shadowsInfo1.z);\r\n#endif\r\n#endif\r\n#endif\r\n#else\r\n    shadow = 1.;\r\n#endif\r\n\r\n    diffuseBase += info.diffuse * shadow;\r\n#ifdef OVERLOADEDSHADOWVALUES\r\n    shadowedOnlyDiffuseBase *= shadow;\r\n#endif\r\n\r\n#ifdef SPECULARTERM\r\n    specularBase += info.specular * shadow;\r\n#endif\r\n#endif\r\n\r\n#ifdef LIGHT2\r\n#ifndef SPECULARTERM\r\n    vec3 vLightSpecular2 = vec3(0.0);\r\n#endif\r\n#ifdef SPOTLIGHT2\r\n    info = computeSpotLighting(viewDirectionW, normalW, vLightData2, vLightDirection2, vLightDiffuse2.rgb, vLightSpecular2, vLightDiffuse2.a, rough, NdotV);\r\n#endif\r\n#ifdef HEMILIGHT2\r\n    info = computeHemisphericLighting(viewDirectionW, normalW, vLightData2, vLightDiffuse2.rgb, vLightSpecular2, vLightGround2, rough, NdotV);\r\n#endif\r\n#if defined(POINTLIGHT2) || defined(DIRLIGHT2)\r\n    info = computeLighting(viewDirectionW, normalW, vLightData2, vLightDiffuse2.rgb, vLightSpecular2, vLightDiffuse2.a, rough, NdotV);\r\n#endif\r\n#ifdef SHADOW2\r\n#ifdef SHADOWVSM2\r\n    shadow = computeShadowWithVSM(vPositionFromLight2, shadowSampler2, shadowsInfo2.z, shadowsInfo2.x);\r\n#else\r\n#ifdef SHADOWPCF2\r\n#if defined(POINTLIGHT2)\r\n    shadow = computeShadowWithPCFCube(vLightData2.xyz, shadowSampler2, shadowsInfo2.y, shadowsInfo2.z, shadowsInfo2.x);\r\n#else\r\n    shadow = computeShadowWithPCF(vPositionFromLight2, shadowSampler2, shadowsInfo2.y, shadowsInfo2.z, shadowsInfo2.x);\r\n#endif\r\n#else\r\n#if defined(POINTLIGHT2)\r\n    shadow = computeShadowCube(vLightData2.xyz, shadowSampler2, shadowsInfo2.x, shadowsInfo2.z);\r\n#else\r\n    shadow = computeShadow(vPositionFromLight2, shadowSampler2, shadowsInfo2.x, shadowsInfo2.z);\r\n#endif\r\n#endif	\r\n#endif	\r\n#else\r\n    shadow = 1.;\r\n#endif\r\n\r\n    diffuseBase += info.diffuse * shadow;\r\n#ifdef OVERLOADEDSHADOWVALUES\r\n    shadowedOnlyDiffuseBase *= shadow;\r\n#endif\r\n\r\n#ifdef SPECULARTERM\r\n    specularBase += info.specular * shadow;\r\n#endif\r\n#endif\r\n\r\n#ifdef LIGHT3\r\n#ifndef SPECULARTERM\r\n    vec3 vLightSpecular3 = vec3(0.0);\r\n#endif\r\n#ifdef SPOTLIGHT3\r\n    info = computeSpotLighting(viewDirectionW, normalW, vLightData3, vLightDirection3, vLightDiffuse3.rgb, vLightSpecular3, vLightDiffuse3.a, rough, NdotV);\r\n#endif\r\n#ifdef HEMILIGHT3\r\n    info = computeHemisphericLighting(viewDirectionW, normalW, vLightData3, vLightDiffuse3.rgb, vLightSpecular3, vLightGround3, rough, NdotV);\r\n#endif\r\n#if defined(POINTLIGHT3) || defined(DIRLIGHT3)\r\n    info = computeLighting(viewDirectionW, normalW, vLightData3, vLightDiffuse3.rgb, vLightSpecular3, vLightDiffuse3.a, rough, NdotV);\r\n#endif\r\n#ifdef SHADOW3\r\n#ifdef SHADOWVSM3\r\n    shadow = computeShadowWithVSM(vPositionFromLight3, shadowSampler3, shadowsInfo3.z, shadowsInfo3.x);\r\n#else\r\n#ifdef SHADOWPCF3\r\n#if defined(POINTLIGHT3)\r\n    shadow = computeShadowWithPCFCube(vLightData3.xyz, shadowSampler3, shadowsInfo3.y, shadowsInfo3.z, shadowsInfo3.x);\r\n#else\r\n    shadow = computeShadowWithPCF(vPositionFromLight3, shadowSampler3, shadowsInfo3.y, shadowsInfo3.z, shadowsInfo3.x);\r\n#endif\r\n#else\r\n#if defined(POINTLIGHT3)\r\n    shadow = computeShadowCube(vLightData3.xyz, shadowSampler3, shadowsInfo3.x, shadowsInfo3.z);\r\n#else\r\n    shadow = computeShadow(vPositionFromLight3, shadowSampler3, shadowsInfo3.x, shadowsInfo3.z);\r\n#endif\r\n#endif	\r\n#endif	\r\n#else\r\n    shadow = 1.;\r\n#endif\r\n\r\n    diffuseBase += info.diffuse * shadow;\r\n#ifdef OVERLOADEDSHADOWVALUES\r\n    shadowedOnlyDiffuseBase *= shadow;\r\n#endif\r\n\r\n#ifdef SPECULARTERM\r\n    specularBase += info.specular * shadow;\r\n#endif\r\n#endif\r\n\r\n// Reflection\r\nvec3 reflectionColor = vReflectionColor.rgb;\r\nvec3 ambientReflectionColor = vReflectionColor.rgb;\r\n\r\n#ifdef REFLECTION\r\n    vec3 vReflectionUVW = computeReflectionCoords(vec4(vPositionW, 1.0), normalW);\r\n\r\n    #ifdef REFLECTIONMAP_3D\r\n        float bias = 0.;\r\n\r\n        #ifdef SPECULARTERM\r\n            // Go mat -> blurry reflexion according to glossiness\r\n            bias = 20. * (1.0 - glossiness);\r\n        #endif\r\n\r\n        reflectionColor = textureCube(reflectionCubeSampler, vReflectionUVW, bias).rgb * vReflectionInfos.x;\r\n        reflectionColor = toLinearSpace(reflectionColor.rgb);\r\n\r\n        ambientReflectionColor = textureCube(reflectionCubeSampler, normalW, 20.).rgb * vReflectionInfos.x;\r\n        ambientReflectionColor = toLinearSpace(ambientReflectionColor.rgb);\r\n    #else\r\n        vec2 coords = vReflectionUVW.xy;\r\n\r\n        #ifdef REFLECTIONMAP_PROJECTION\r\n            coords /= vReflectionUVW.z;\r\n        #endif\r\n\r\n        coords.y = 1.0 - coords.y;\r\n\r\n        reflectionColor = texture2D(reflection2DSampler, coords).rgb * vReflectionInfos.x;\r\n        reflectionColor = toLinearSpace(reflectionColor.rgb);\r\n\r\n        ambientReflectionColor = texture2D(reflection2DSampler, coords, 20.).rgb * vReflectionInfos.x;\r\n        ambientReflectionColor = toLinearSpace(ambientReflectionColor.rgb);\r\n    #endif\r\n#endif\r\n\r\n#ifdef OVERLOADEDVALUES\r\n    ambientReflectionColor = mix(ambientReflectionColor, vOverloadedReflection, vOverloadedGlossiness.z);\r\n    reflectionColor = mix(reflectionColor, vOverloadedReflection, vOverloadedGlossiness.z);\r\n#endif\r\n\r\nreflectionColor *= vLightingIntensity.z;\r\nambientReflectionColor *= vLightingIntensity.z;\r\n\r\n// Compute reflection specular fresnel\r\nvec3 specularEnvironmentR0 = specularColor.rgb;\r\nvec3 specularEnvironmentR90 = vec3(1.0, 1.0, 1.0);\r\nvec3 specularEnvironmentReflectanceViewer = FresnelSchlickEnvironmentGGX(clamp(NdotV, 0., 1.), specularEnvironmentR0, specularEnvironmentR90, sqrt(glossiness));\r\nreflectionColor *= specularEnvironmentReflectanceViewer;\r\n\r\n#ifdef OPACITY\r\n    vec4 opacityMap = texture2D(opacitySampler, vOpacityUV);\r\n\r\n    #ifdef OPACITYRGB\r\n        opacityMap.rgb = opacityMap.rgb * vec3(0.3, 0.59, 0.11);\r\n        alpha *= (opacityMap.x + opacityMap.y + opacityMap.z)* vOpacityInfos.y;\r\n    #else\r\n        alpha *= opacityMap.a * vOpacityInfos.y;\r\n    #endif\r\n\r\n#endif\r\n\r\n#ifdef VERTEXALPHA\r\n    alpha *= vColor.a;\r\n#endif\r\n\r\n#ifdef OPACITYFRESNEL\r\n    float opacityFresnelTerm = computeFresnelTerm(viewDirectionW, normalW, opacityParts.z, opacityParts.w);\r\n\r\n    alpha += opacityParts.x * (1.0 - opacityFresnelTerm) + opacityFresnelTerm * opacityParts.y;\r\n#endif\r\n\r\n    // Emissive\r\n    vec3 emissiveColor = vEmissiveColor;\r\n#ifdef EMISSIVE\r\n    vec3 emissiveColorTex = texture2D(emissiveSampler, vEmissiveUV).rgb;\r\n    emissiveColor = toLinearSpace(emissiveColorTex.rgb) * emissiveColor * vEmissiveInfos.y;\r\n#endif\r\n\r\n#ifdef OVERLOADEDVALUES\r\n    emissiveColor = mix(emissiveColor, vOverloadedEmissive, vOverloadedIntensity.w);\r\n#endif\r\n\r\n#ifdef EMISSIVEFRESNEL\r\n    float emissiveFresnelTerm = computeFresnelTerm(viewDirectionW, normalW, emissiveRightColor.a, emissiveLeftColor.a);\r\n\r\n    emissiveColor *= emissiveLeftColor.rgb * (1.0 - emissiveFresnelTerm) + emissiveFresnelTerm * emissiveRightColor.rgb;\r\n#endif\r\n\r\n    // Composition\r\n#ifdef EMISSIVEASILLUMINATION\r\n    vec3 finalDiffuse = max(diffuseBase * diffuseColor + vAmbientColor, 0.0) * baseColor.rgb;\r\n    \r\n    #ifdef OVERLOADEDSHADOWVALUES\r\n        shadowedOnlyDiffuseBase = max(shadowedOnlyDiffuseBase * diffuseColor + vAmbientColor, 0.0) * baseColor.rgb;\r\n    #endif\r\n#else\r\n    #ifdef LINKEMISSIVEWITHDIFFUSE\r\n        vec3 finalDiffuse = max((diffuseBase + emissiveColor) * diffuseColor + vAmbientColor, 0.0) * baseColor.rgb;\r\n\r\n        #ifdef OVERLOADEDSHADOWVALUES\r\n            shadowedOnlyDiffuseBase = max((shadowedOnlyDiffuseBase + emissiveColor) * diffuseColor + vAmbientColor, 0.0) * baseColor.rgb;\r\n        #endif\r\n    #else\r\n        vec3 finalDiffuse = max(diffuseBase * diffuseColor + emissiveColor + vAmbientColor, 0.0) * baseColor.rgb;\r\n\r\n        #ifdef OVERLOADEDSHADOWVALUES\r\n            shadowedOnlyDiffuseBase = max(shadowedOnlyDiffuseBase * diffuseColor + emissiveColor + vAmbientColor, 0.0) * baseColor.rgb;\r\n        #endif\r\n    #endif\r\n#endif\r\n\r\n#ifdef OVERLOADEDSHADOWVALUES\r\n    finalDiffuse = mix(finalDiffuse, shadowedOnlyDiffuseBase, (1.0 - vOverloadedShadowIntensity.y));\r\n#endif\r\n\r\n// diffuse lighting from environment 0.2 replaces Harmonic...\r\n// Ambient Reflection already includes the environment intensity.\r\nfinalDiffuse += baseColor.rgb * ambientReflectionColor * 0.2;\r\n\r\n#ifdef SPECULARTERM\r\n    vec3 finalSpecular = specularBase * specularColor;\r\n#else\r\n    vec3 finalSpecular = vec3(0.0);\r\n#endif\r\n\r\n#ifdef OVERLOADEDSHADOWVALUES\r\n    finalSpecular = mix(finalSpecular, vec3(0.0), (1.0 - vOverloadedShadowIntensity.y));\r\n#endif\r\n\r\n#ifdef SPECULAROVERALPHA\r\n    alpha = clamp(alpha + dot(finalSpecular, vec3(0.3, 0.59, 0.11)), 0., 1.);\r\n#endif\r\n\r\n// Composition\r\n// Reflection already includes the environment intensity.\r\n#ifdef EMISSIVEASILLUMINATION\r\n    vec4 color = vec4(finalDiffuse * baseAmbientColor * vLightingIntensity.x + finalSpecular * vLightingIntensity.x + reflectionColor + emissiveColor * vLightingIntensity.y, alpha);\r\n#else\r\n    vec4 color = vec4(finalDiffuse * baseAmbientColor * vLightingIntensity.x + finalSpecular * vLightingIntensity.x + reflectionColor, alpha);\r\n#endif\r\n\r\n#ifdef LIGHTMAP\r\n    vec3 lightmapColor = texture2D(lightmapSampler, vLightmapUV).rgb * vLightmapInfos.y;\r\n\r\n    #ifdef USELIGHTMAPASSHADOWMAP\r\n        color.rgb *= lightmapColor;\r\n    #else\r\n        color.rgb += lightmapColor;\r\n    #endif\r\n#endif\r\n\r\n#ifdef FOG\r\n    float fog = CalcFogFactor();\r\n    color.rgb = fog * color.rgb + (1.0 - fog) * vFogColor;\r\n#endif\r\n\r\n    color = max(color, 0.0);\r\n\r\n#ifdef CAMERATONEMAP\r\n    color.rgb = toneMaps(color.rgb);\r\n#endif\r\n\r\n    color.rgb = toGammaSpace(color.rgb);\r\n\r\n#ifdef CAMERACONTRAST\r\n    color = contrasts(color);\r\n#endif\r\n\r\n    // Normal Display.\r\n    // gl_FragColor = vec4(normalW * 0.5 + 0.5, 1.0);\r\n\r\n    // Ambient reflection color.\r\n    // gl_FragColor = vec4(ambientReflectionColor, 1.0);\r\n\r\n    // Reflection color.\r\n    // gl_FragColor = vec4(reflectionColor, 1.0);\r\n\r\n    // Base color.\r\n    // gl_FragColor = vec4(baseColor.rgb, 1.0);\r\n\r\n    // Specular color.\r\n    // gl_FragColor = vec4(specularColor.rgb, 1.0);\r\n\r\n    // Glossiness color.\r\n    // gl_FragColor = vec4(glossiness, glossiness, glossiness, 1.0);\r\n\r\n    // Specular Map\r\n    // gl_FragColor = vec4(specularMapColor.rgb, 1.0);\r\n\r\n    //// Emissive Color\r\n    //vec2 test = vEmissiveUV * 0.5 + 0.5;\r\n    //gl_FragColor = vec4(test.x, test.y, 1.0, 1.0);\r\n\r\n    gl_FragColor = color;\r\n}",
BABYLON.Effect.ShadersStore.legacypbrVertexShader="precision mediump float;\r\n\r\n// Attributes\r\nattribute vec3 position;\r\nattribute vec3 normal;\r\n#ifdef UV1\r\nattribute vec2 uv;\r\n#endif\r\n#ifdef UV2\r\nattribute vec2 uv2;\r\n#endif\r\n#ifdef VERTEXCOLOR\r\nattribute vec4 color;\r\n#endif\r\n\r\n#if NUM_BONE_INFLUENCERS > 0\r\nuniform mat4 mBones[BonesPerMesh];\r\n\r\nattribute vec4 matricesIndices;\r\nattribute vec4 matricesWeights;\r\n#if NUM_BONE_INFLUENCERS > 4\r\nattribute vec4 matricesIndicesExtra;\r\nattribute vec4 matricesWeightsExtra;\r\n#endif\r\n#endif\r\n\r\n// Uniforms\r\nuniform mat4 world;\r\nuniform mat4 view;\r\nuniform mat4 viewProjection;\r\n\r\n#ifdef DIFFUSE\r\nvarying vec2 vDiffuseUV;\r\nuniform mat4 diffuseMatrix;\r\nuniform vec2 vDiffuseInfos;\r\n#endif\r\n\r\n#ifdef AMBIENT\r\nvarying vec2 vAmbientUV;\r\nuniform mat4 ambientMatrix;\r\nuniform vec2 vAmbientInfos;\r\n#endif\r\n\r\n#ifdef OPACITY\r\nvarying vec2 vOpacityUV;\r\nuniform mat4 opacityMatrix;\r\nuniform vec2 vOpacityInfos;\r\n#endif\r\n\r\n#ifdef EMISSIVE\r\nvarying vec2 vEmissiveUV;\r\nuniform vec2 vEmissiveInfos;\r\nuniform mat4 emissiveMatrix;\r\n#endif\r\n\r\n#if defined(SPECULAR) && defined(SPECULARTERM)\r\nvarying vec2 vSpecularUV;\r\nuniform vec2 vSpecularInfos;\r\nuniform mat4 specularMatrix;\r\n#endif\r\n\r\n// Output\r\nvarying vec3 vPositionW;\r\nvarying vec3 vNormalW;\r\n\r\n#ifdef VERTEXCOLOR\r\nvarying vec4 vColor;\r\n#endif\r\n\r\n#ifdef CLIPPLANE\r\nuniform vec4 vClipPlane;\r\nvarying float fClipDistance;\r\n#endif\r\n\r\nvoid main(void) {\r\n    mat4 finalWorld = world;\r\n\r\n#if NUM_BONE_INFLUENCERS > 0\r\n    mat4 influence;\r\n    influence = mBones[int(matricesIndices[0])] * matricesWeights[0];\r\n\r\n#if NUM_BONE_INFLUENCERS > 1\r\n    influence += mBones[int(matricesIndices[1])] * matricesWeights[1];\r\n#endif \r\n#if NUM_BONE_INFLUENCERS > 2\r\n    influence += mBones[int(matricesIndices[2])] * matricesWeights[2];\r\n#endif	\r\n#if NUM_BONE_INFLUENCERS > 3\r\n    influence += mBones[int(matricesIndices[3])] * matricesWeights[3];\r\n#endif	\r\n\r\n#if NUM_BONE_INFLUENCERS > 4\r\n    influence += mBones[int(matricesIndicesExtra[0])] * matricesWeightsExtra[0];\r\n#endif\r\n#if NUM_BONE_INFLUENCERS > 5\r\n    influence += mBones[int(matricesIndicesExtra[1])] * matricesWeightsExtra[1];\r\n#endif	\r\n#if NUM_BONE_INFLUENCERS > 6\r\n    influence += mBones[int(matricesIndicesExtra[2])] * matricesWeightsExtra[2];\r\n#endif	\r\n#if NUM_BONE_INFLUENCERS > 7\r\n    influence += mBones[int(matricesIndicesExtra[3])] * matricesWeightsExtra[3];\r\n#endif	\r\n\r\n    finalWorld = finalWorld * influence;\r\n#endif\r\n\r\n	gl_Position = viewProjection * finalWorld * vec4(position, 1.0);\r\n\r\n	vec4 worldPos = finalWorld * vec4(position, 1.0);\r\n	vPositionW = vec3(worldPos);\r\n	vNormalW = normalize(vec3(finalWorld * vec4(normal, 0.0)));\r\n\r\n	// Texture coordinates\r\n#ifndef UV1\r\n	vec2 uv = vec2(0., 0.);\r\n#endif\r\n#ifndef UV2\r\n	vec2 uv2 = vec2(0., 0.);\r\n#endif\r\n\r\n#ifdef DIFFUSE\r\n	if (vDiffuseInfos.x == 0.)\r\n	{\r\n		vDiffuseUV = vec2(diffuseMatrix * vec4(uv, 1.0, 0.0));\r\n	}\r\n	else\r\n	{\r\n		vDiffuseUV = vec2(diffuseMatrix * vec4(uv2, 1.0, 0.0));\r\n	}\r\n#endif\r\n\r\n#ifdef AMBIENT\r\n	if (vAmbientInfos.x == 0.)\r\n	{\r\n		vAmbientUV = vec2(ambientMatrix * vec4(uv, 1.0, 0.0));\r\n	}\r\n	else\r\n	{\r\n		vAmbientUV = vec2(ambientMatrix * vec4(uv2, 1.0, 0.0));\r\n	}\r\n#endif\r\n\r\n#ifdef OPACITY\r\n	if (vOpacityInfos.x == 0.)\r\n	{\r\n		vOpacityUV = vec2(opacityMatrix * vec4(uv, 1.0, 0.0));\r\n	}\r\n	else\r\n	{\r\n		vOpacityUV = vec2(opacityMatrix * vec4(uv2, 1.0, 0.0));\r\n	}\r\n#endif\r\n\r\n#ifdef EMISSIVE\r\n	if (vEmissiveInfos.x == 0.)\r\n	{\r\n		vEmissiveUV = vec2(emissiveMatrix * vec4(uv, 1.0, 0.0));\r\n	}\r\n	else\r\n	{\r\n		vEmissiveUV = vec2(emissiveMatrix * vec4(uv2, 1.0, 0.0));\r\n	}\r\n#endif\r\n\r\n#if defined(SPECULAR) && defined(SPECULARTERM)\r\n	if (vSpecularInfos.x == 0.)\r\n	{\r\n		vSpecularUV = vec2(specularMatrix * vec4(uv, 1.0, 0.0));\r\n	}\r\n	else\r\n	{\r\n		vSpecularUV = vec2(specularMatrix * vec4(uv2, 1.0, 0.0));\r\n	}\r\n#endif\r\n\r\n	// Clip plane\r\n#ifdef CLIPPLANE\r\n	fClipDistance = dot(worldPos, vClipPlane);\r\n#endif\r\n\r\n	// Vertex color\r\n#ifdef VERTEXCOLOR\r\n	vColor = color;\r\n#endif\r\n}",BABYLON.Effect.ShadersStore.legacypbrPixelShader="precision mediump float;\r\n\r\n// Constants\r\n#define RECIPROCAL_PI2 0.15915494\r\n#define FRESNEL_MAXIMUM_ON_ROUGH 0.25\r\n\r\nuniform vec3 vEyePosition;\r\nuniform vec3 vAmbientColor;\r\nuniform vec4 vDiffuseColor;\r\nuniform vec3 vReflectionColor;\r\n\r\n// CUSTOM CONTROLS\r\nuniform vec4 vLightingIntensity;\r\nuniform vec4 vCameraInfos;\r\n\r\n#ifdef OVERLOADEDVALUES\r\nuniform vec4 vOverloadedIntensity;\r\nuniform vec3 vOverloadedAmbient;\r\nuniform vec3 vOverloadedDiffuse;\r\nuniform vec3 vOverloadedSpecular;\r\nuniform vec3 vOverloadedEmissive;\r\nuniform vec3 vOverloadedReflection;\r\nuniform vec3 vOverloadedGlossiness;\r\n#endif\r\n\r\n#ifdef OVERLOADEDSHADOWVALUES\r\nuniform vec4 vOverloadedShadowIntensity;\r\n#endif\r\n\r\n// PBR CUSTOM CONSTANTS\r\nconst float kPi = 3.1415926535897932384626433832795;\r\n\r\n// PBR HELPER METHODS\r\nfloat Square(float value)\r\n{\r\n    return value * value;\r\n}\r\n\r\nfloat getLuminance(vec3 color)\r\n{\r\n    return clamp(dot(color, vec3(0.2126, 0.7152, 0.0722)), 0., 1.);\r\n}\r\n\r\nfloat convertRoughnessToAverageSlope(float roughness)\r\n{\r\n    // Calculate AlphaG as square of roughness; add epsilon to avoid numerical issues\r\n    const float kMinimumVariance = 0.0005;\r\n    float alphaG = Square(roughness) + kMinimumVariance;\r\n    return alphaG;\r\n}\r\n\r\n// From Microfacet Models for Refraction through Rough Surfaces, Walter et al. 2007\r\nfloat smithVisibilityG1_TrowbridgeReitzGGX(float dot, float alphaG)\r\n{\r\n    float tanSquared = (1.0 - dot * dot) / (dot * dot);\r\n    return 2.0 / (1.0 + sqrt(1.0 + alphaG * alphaG * tanSquared));\r\n}\r\n\r\nfloat smithVisibilityG_TrowbridgeReitzGGX_Walter(float NdotL, float NdotV, float alphaG)\r\n{\r\n    return smithVisibilityG1_TrowbridgeReitzGGX(NdotL, alphaG) * smithVisibilityG1_TrowbridgeReitzGGX(NdotV, alphaG);\r\n}\r\n\r\n// Trowbridge-Reitz (GGX)\r\n// Generalised Trowbridge-Reitz with gamma power=2.0\r\nfloat normalDistributionFunction_TrowbridgeReitzGGX(float NdotH, float alphaG)\r\n{\r\n    // Note: alphaG is average slope (gradient) of the normals in slope-space.\r\n    // It is also the (trigonometric) tangent of the median distribution value, i.e. 50% of normals have\r\n    // a tangent (gradient) closer to the macrosurface than this slope.\r\n    float a2 = Square(alphaG);\r\n    float d = NdotH * NdotH * (a2 - 1.0) + 1.0;\r\n    return a2 / (kPi * d * d);\r\n}\r\n\r\nvec3 fresnelSchlickGGX(float VdotH, vec3 reflectance0, vec3 reflectance90)\r\n{\r\n    return reflectance0 + (reflectance90 - reflectance0) * pow(clamp(1.0 - VdotH, 0., 1.), 5.0);\r\n}\r\n\r\nvec3 FresnelSchlickEnvironmentGGX(float VdotN, vec3 reflectance0, vec3 reflectance90, float smoothness)\r\n{\r\n    // Schlick fresnel approximation, extended with basic smoothness term so that rough surfaces do not approach reflectance90 at grazing angle\r\n    float weight = mix(FRESNEL_MAXIMUM_ON_ROUGH, 1.0, smoothness);\r\n    return reflectance0 + weight * (reflectance90 - reflectance0) * pow(clamp(1.0 - VdotN, 0., 1.), 5.0);\r\n}\r\n\r\n// Cook Torance Specular computation.\r\nvec3 computeSpecularTerm(float NdotH, float NdotL, float NdotV, float VdotH, float roughness, vec3 specularColor)\r\n{\r\n    float alphaG = convertRoughnessToAverageSlope(roughness);\r\n    float distribution = normalDistributionFunction_TrowbridgeReitzGGX(NdotH, alphaG);\r\n    float visibility = smithVisibilityG_TrowbridgeReitzGGX_Walter(NdotL, NdotV, alphaG);\r\n    visibility /= (4.0 * NdotL * NdotV); // Cook Torance Denominator  integated in viibility to avoid issues when visibility function changes.\r\n\r\n    vec3 fresnel = fresnelSchlickGGX(VdotH, specularColor, vec3(1., 1., 1.));\r\n\r\n    float specTerm = max(0., visibility * distribution) * NdotL;\r\n    return fresnel * specTerm;\r\n}\r\n\r\nfloat computeDiffuseTerm(float NdotL, float NdotV, float VdotH, float roughness)\r\n{\r\n    // Diffuse fresnel falloff as per Disney principled BRDF, and in the spirit of\r\n    // of general coupled diffuse/specular models e.g. Ashikhmin Shirley.\r\n    float diffuseFresnelNV = pow(clamp(1.0 - NdotL, 0.000001, 1.), 5.0);\r\n    float diffuseFresnelNL = pow(clamp(1.0 - NdotV, 0.000001, 1.), 5.0);\r\n    float diffuseFresnel90 = 0.5 + 2.0 * VdotH * VdotH * roughness;\r\n    float diffuseFresnelTerm =\r\n        (1.0 + (diffuseFresnel90 - 1.0) * diffuseFresnelNL) *\r\n        (1.0 + (diffuseFresnel90 - 1.0) * diffuseFresnelNV);\r\n\r\n    return diffuseFresnelTerm * NdotL;\r\n}\r\n\r\nfloat computeDefaultGlossiness(float glossiness, vec3 specularColor)\r\n{\r\n    if (glossiness == 0.)\r\n    {\r\n        float kSpecularNoAlphaWorkflow_SmoothnessMax = 0.95;\r\n\r\n        float specularLuminance = getLuminance(specularColor);\r\n        float specularLuma = sqrt(specularLuminance);\r\n        glossiness = specularLuma * kSpecularNoAlphaWorkflow_SmoothnessMax;\r\n    }\r\n    return glossiness;\r\n}\r\n\r\nvec3 toLinearSpace(vec3 color)\r\n{\r\n    return vec3(pow(color.r, 2.2), pow(color.g, 2.2), pow(color.b, 2.2));\r\n}\r\n\r\nvec3 toGammaSpace(vec3 color)\r\n{\r\n    return vec3(pow(color.r, 1.0 / 2.2), pow(color.g, 1.0 / 2.2), pow(color.b, 1.0 / 2.2));\r\n}\r\n\r\n#ifdef CAMERATONEMAP\r\n    vec3 toneMaps(vec3 color)\r\n    {\r\n        color = max(color, 0.0);\r\n\r\n        // TONE MAPPING / EXPOSURE\r\n        color.rgb = color.rgb * vCameraInfos.x;\r\n\r\n        float tuning = 1.5; // TODO: sync up so e.g. 18% greys are matched to exposure appropriately\r\n        vec3 tonemapped = 1.0 - exp2(-color.rgb * tuning); // simple local photographic tonemapper\r\n        color.rgb = mix(color.rgb, tonemapped, 1.0);\r\n        return color;\r\n    }\r\n#endif\r\n\r\n#ifdef CAMERACONTRAST\r\n    vec4 contrasts(vec4 color)\r\n    {\r\n        color = clamp(color, 0.0, 1.0);\r\n\r\n        vec3 resultHighContrast = color.rgb * color.rgb * (3.0 - 2.0 * color.rgb);\r\n        float contrast = vCameraInfos.y;\r\n        if (contrast < 1.0)\r\n        {\r\n            // Decrease contrast: interpolate towards zero-contrast image (flat grey)\r\n            color.rgb = mix(vec3(0.5, 0.5, 0.5), color.rgb, contrast);\r\n        }\r\n        else\r\n        {\r\n            // Increase contrast: apply simple shoulder-toe high contrast curve\r\n            color.rgb = mix(color.rgb, resultHighContrast, contrast - 1.0);\r\n        }\r\n\r\n        return color;\r\n    }\r\n#endif\r\n// END PBR HELPER METHODS\r\n\r\n#ifdef SPECULARTERM\r\nuniform vec4 vSpecularColor;\r\n#endif\r\nuniform vec3 vEmissiveColor;\r\n\r\n// Input\r\nvarying vec3 vPositionW;\r\n\r\n#ifdef NORMAL\r\nvarying vec3 vNormalW;\r\n#endif\r\n\r\n#ifdef VERTEXCOLOR\r\nvarying vec4 vColor;\r\n#endif\r\n\r\n// Lights\r\n#ifdef LIGHT0\r\nuniform vec4 vLightData0;\r\nuniform vec4 vLightDiffuse0;\r\n#ifdef SPECULARTERM\r\nuniform vec3 vLightSpecular0;\r\n#endif\r\n#ifdef SHADOW0\r\n#if defined(SPOTLIGHT0) || defined(DIRLIGHT0)\r\nvarying vec4 vPositionFromLight0;\r\nuniform sampler2D shadowSampler0;\r\n#else\r\nuniform samplerCube shadowSampler0;\r\n#endif\r\nuniform vec3 shadowsInfo0;\r\n#endif\r\n#ifdef SPOTLIGHT0\r\nuniform vec4 vLightDirection0;\r\n#endif\r\n#ifdef HEMILIGHT0\r\nuniform vec3 vLightGround0;\r\n#endif\r\n#endif\r\n\r\n#ifdef LIGHT1\r\nuniform vec4 vLightData1;\r\nuniform vec4 vLightDiffuse1;\r\n#ifdef SPECULARTERM\r\nuniform vec3 vLightSpecular1;\r\n#endif\r\n#ifdef SHADOW1\r\n#if defined(SPOTLIGHT1) || defined(DIRLIGHT1)\r\nvarying vec4 vPositionFromLight1;\r\nuniform sampler2D shadowSampler1;\r\n#else\r\nuniform samplerCube shadowSampler1;\r\n#endif\r\nuniform vec3 shadowsInfo1;\r\n#endif\r\n#ifdef SPOTLIGHT1\r\nuniform vec4 vLightDirection1;\r\n#endif\r\n#ifdef HEMILIGHT1\r\nuniform vec3 vLightGround1;\r\n#endif\r\n#endif\r\n\r\n#ifdef LIGHT2\r\nuniform vec4 vLightData2;\r\nuniform vec4 vLightDiffuse2;\r\n#ifdef SPECULARTERM\r\nuniform vec3 vLightSpecular2;\r\n#endif\r\n#ifdef SHADOW2\r\n#if defined(SPOTLIGHT2) || defined(DIRLIGHT2)\r\nvarying vec4 vPositionFromLight2;\r\nuniform sampler2D shadowSampler2;\r\n#else\r\nuniform samplerCube shadowSampler2;\r\n#endif\r\nuniform vec3 shadowsInfo2;\r\n#endif\r\n#ifdef SPOTLIGHT2\r\nuniform vec4 vLightDirection2;\r\n#endif\r\n#ifdef HEMILIGHT2\r\nuniform vec3 vLightGround2;\r\n#endif\r\n#endif\r\n\r\n#ifdef LIGHT3\r\nuniform vec4 vLightData3;\r\nuniform vec4 vLightDiffuse3;\r\n#ifdef SPECULARTERM\r\nuniform vec3 vLightSpecular3;\r\n#endif\r\n#ifdef SHADOW3\r\n#if defined(SPOTLIGHT3) || defined(DIRLIGHT3)\r\nvarying vec4 vPositionFromLight3;\r\nuniform sampler2D shadowSampler3;\r\n#else\r\nuniform samplerCube shadowSampler3;\r\n#endif\r\nuniform vec3 shadowsInfo3;\r\n#endif\r\n#ifdef SPOTLIGHT3\r\nuniform vec4 vLightDirection3;\r\n#endif\r\n#ifdef HEMILIGHT3\r\nuniform vec3 vLightGround3;\r\n#endif\r\n#endif\r\n\r\n// Samplers\r\n#ifdef DIFFUSE\r\nvarying vec2 vDiffuseUV;\r\nuniform sampler2D diffuseSampler;\r\nuniform vec2 vDiffuseInfos;\r\n#endif\r\n\r\n#ifdef AMBIENT\r\nvarying vec2 vAmbientUV;\r\nuniform sampler2D ambientSampler;\r\nuniform vec2 vAmbientInfos;\r\n#endif\r\n\r\n#ifdef OPACITY	\r\nvarying vec2 vOpacityUV;\r\nuniform sampler2D opacitySampler;\r\nuniform vec2 vOpacityInfos;\r\n#endif\r\n\r\n#ifdef EMISSIVE\r\nvarying vec2 vEmissiveUV;\r\nuniform vec2 vEmissiveInfos;\r\nuniform sampler2D emissiveSampler;\r\n#endif\r\n\r\n#ifdef LIGHTMAP\r\nvarying vec2 vLightmapUV;\r\nuniform vec2 vLightmapInfos;\r\nuniform sampler2D lightmapSampler;\r\n#endif\r\n\r\n#if defined(SPECULAR) && defined(SPECULARTERM)\r\nvarying vec2 vSpecularUV;\r\nuniform vec2 vSpecularInfos;\r\nuniform sampler2D specularSampler;\r\n#endif\r\n\r\n#ifdef CLIPPLANE\r\nvarying float fClipDistance;\r\n#endif\r\n\r\n// Light Computing\r\nstruct lightingInfo\r\n{\r\n    vec3 diffuse;\r\n#ifdef SPECULARTERM\r\n    vec3 specular;\r\n#endif\r\n};\r\n\r\nlightingInfo computeLighting(vec3 viewDirectionW, vec3 vNormal, vec4 lightData, vec3 diffuseColor, vec3 specularColor, float range, float roughness, float NdotV) {\r\n    lightingInfo result;\r\n\r\n    vec3 lightVectorW;\r\n    float attenuation = 1.0;\r\n    if (lightData.w == 0.)\r\n    {\r\n        vec3 direction = lightData.xyz - vPositionW;\r\n\r\n        attenuation = max(0., 1.0 - length(direction) / range);\r\n        lightVectorW = normalize(direction);\r\n    }\r\n    else\r\n    {\r\n        lightVectorW = normalize(-lightData.xyz);\r\n    }\r\n\r\n    // diffuse\r\n    vec3 H = normalize(viewDirectionW + lightVectorW);\r\n    float NdotL = max(0.00000000001, dot(vNormal, lightVectorW));\r\n    float VdotH = clamp(0.00000000001, 1.0, dot(viewDirectionW, H));\r\n\r\n    float diffuseTerm = computeDiffuseTerm(NdotL, NdotV, VdotH, roughness);\r\n    result.diffuse = diffuseTerm * diffuseColor * attenuation;\r\n\r\n#ifdef SPECULARTERM\r\n    // Specular\r\n    float NdotH = max(0.00000000001, dot(vNormal, H));\r\n\r\n    vec3 specTerm = computeSpecularTerm(NdotH, NdotL, NdotV, VdotH, roughness, specularColor);\r\n    result.specular = specTerm * specularColor * attenuation;\r\n#endif\r\n\r\n    return result;\r\n}\r\n\r\nlightingInfo computeSpotLighting(vec3 viewDirectionW, vec3 vNormal, vec4 lightData, vec4 lightDirection, vec3 diffuseColor, vec3 specularColor, float range, float roughness, float NdotV) {\r\n    lightingInfo result;\r\n\r\n    vec3 direction = lightData.xyz - vPositionW;\r\n    vec3 lightVectorW = normalize(direction);\r\n    float attenuation = max(0., 1.0 - length(direction) / range);\r\n\r\n    // diffuse\r\n    float cosAngle = max(0.0000001, dot(-lightDirection.xyz, lightVectorW));\r\n    float spotAtten = 0.0;\r\n\r\n    if (cosAngle >= lightDirection.w)\r\n    {\r\n        cosAngle = max(0., pow(cosAngle, lightData.w));\r\n        spotAtten = clamp((cosAngle - lightDirection.w) / (1. - cosAngle), 0.0, 1.0);\r\n\r\n        // Diffuse\r\n        vec3 H = normalize(viewDirectionW - lightDirection.xyz);\r\n        float NdotL = max(0.00000000001, dot(vNormal, -lightDirection.xyz));\r\n        float VdotH = clamp(dot(viewDirectionW, H), 0.00000000001, 1.0);\r\n\r\n        float diffuseTerm = computeDiffuseTerm(NdotL, NdotV, VdotH, roughness);\r\n        result.diffuse = diffuseTerm * diffuseColor * attenuation * spotAtten;\r\n\r\n#ifdef SPECULARTERM\r\n        // Specular\r\n        float NdotH = max(0.00000000001, dot(vNormal, H));\r\n\r\n        vec3 specTerm = computeSpecularTerm(NdotH, NdotL, NdotV, VdotH, roughness, specularColor);\r\n        result.specular = specTerm * specularColor * attenuation * spotAtten;\r\n#endif\r\n\r\n        return result;\r\n    }\r\n\r\n    result.diffuse = vec3(0.);\r\n#ifdef SPECULARTERM\r\n    result.specular = vec3(0.);\r\n#endif\r\n\r\n    return result;\r\n}\r\n\r\nlightingInfo computeHemisphericLighting(vec3 viewDirectionW, vec3 vNormal, vec4 lightData, vec3 diffuseColor, vec3 specularColor, vec3 groundColor, float roughness, float NdotV) {\r\n    lightingInfo result;\r\n\r\n    vec3 lightVectorW = normalize(lightData.xyz);\r\n\r\n    // Diffuse\r\n    float ndl = dot(vNormal, lightData.xyz) * 0.5 + 0.5;\r\n    result.diffuse = mix(groundColor, diffuseColor, ndl);\r\n\r\n#ifdef SPECULARTERM\r\n    // Specular\r\n    vec3 H = normalize(viewDirectionW + lightVectorW);\r\n    float NdotH = max(0.00000000001, dot(vNormal, H));\r\n    float NdotL = max(0.00000000001, ndl);\r\n    float VdotH = clamp(0.00000000001, 1.0, dot(viewDirectionW, H));\r\n\r\n    vec3 specTerm = computeSpecularTerm(NdotH, NdotL, NdotV, VdotH, roughness, specularColor);\r\n    result.specular = specTerm * specularColor;\r\n#endif\r\n\r\n    return result;\r\n}\r\n\r\nvoid main(void) {\r\n    // Clip plane\r\n#ifdef CLIPPLANE\r\n    if (fClipDistance > 0.0)\r\n        discard;\r\n#endif\r\n\r\n    vec3 viewDirectionW = normalize(vEyePosition - vPositionW);\r\n\r\n    // Base color\r\n    vec4 baseColor = vec4(1., 1., 1., 1.);\r\n    vec3 diffuseColor = vDiffuseColor.rgb;\r\n    \r\n    // Alpha\r\n    float alpha = vDiffuseColor.a;\r\n\r\n#ifdef DIFFUSE\r\n    baseColor = texture2D(diffuseSampler, vDiffuseUV);\r\n    baseColor = vec4(toLinearSpace(baseColor.rgb), baseColor.a);\r\n\r\n#ifdef ALPHATEST\r\n    if (baseColor.a < 0.4)\r\n        discard;\r\n#endif\r\n\r\n#ifdef ALPHAFROMDIFFUSE\r\n    alpha *= baseColor.a;\r\n#endif\r\n\r\n    baseColor.rgb *= vDiffuseInfos.y;\r\n#endif\r\n\r\n#ifdef VERTEXCOLOR\r\n    baseColor.rgb *= vColor.rgb;\r\n#endif\r\n\r\n#ifdef OVERLOADEDVALUES\r\n    baseColor.rgb = mix(baseColor.rgb, vOverloadedDiffuse, vOverloadedIntensity.y);\r\n    diffuseColor.rgb = mix(diffuseColor.rgb, vOverloadedDiffuse, vOverloadedIntensity.y);\r\n#endif\r\n\r\n    // Bump\r\n#ifdef NORMAL\r\n    vec3 normalW = normalize(vNormalW);\r\n#else\r\n    vec3 normalW = vec3(1.0, 1.0, 1.0);\r\n#endif\r\n\r\n    // Ambient color\r\n    vec3 baseAmbientColor = vec3(1., 1., 1.);\r\n\r\n#ifdef AMBIENT\r\n    baseAmbientColor = texture2D(ambientSampler, vAmbientUV).rgb * vAmbientInfos.y;\r\n    #ifdef OVERLOADEDVALUES\r\n        baseAmbientColor.rgb = mix(baseAmbientColor.rgb, vOverloadedAmbient, vOverloadedIntensity.x);\r\n    #endif\r\n#endif\r\n\r\n    // Specular map\r\n#ifdef SPECULARTERM\r\n    float glossiness = vSpecularColor.a;\r\n    vec3 specularColor = vSpecularColor.rgb;\r\n\r\n    #ifdef OVERLOADEDVALUES\r\n        specularColor.rgb = mix(specularColor.rgb, vOverloadedSpecular, vOverloadedIntensity.z);\r\n    #endif\r\n\r\n    #ifdef SPECULAR\r\n            vec4 specularMapColor = texture2D(specularSampler, vSpecularUV);\r\n            specularColor = toLinearSpace(specularMapColor.rgb);\r\n\r\n        #ifdef OVERLOADEDVALUES\r\n                specularColor.rgb = mix(specularColor.rgb, vOverloadedSpecular, vOverloadedIntensity.z);\r\n        #endif\r\n\r\n        #ifdef GLOSSINESSFROMSPECULARMAP\r\n            glossiness = specularMapColor.a;\r\n        #else\r\n            glossiness = computeDefaultGlossiness(glossiness, specularColor);\r\n        #endif\r\n    #endif\r\n\r\n    #ifdef OVERLOADEDVALUES\r\n        glossiness = mix(glossiness, vOverloadedGlossiness.x, vOverloadedGlossiness.y);\r\n    #endif\r\n#else\r\n    float glossiness = 0.;\r\n    #ifdef OVERLOADEDVALUES\r\n        glossiness = mix(glossiness, vOverloadedGlossiness.x, vOverloadedGlossiness.y);\r\n    #endif\r\n\r\n    vec3 specularColor = vec3(0., 0., 0);\r\n    #ifdef OVERLOADEDVALUES\r\n            specularColor.rgb = mix(specularColor.rgb, vOverloadedSpecular, vOverloadedIntensity.z);\r\n    #endif\r\n#endif\r\n\r\n    // Apply Energy Conservation taking in account the environment level only if the environment is present.\r\n    float reflectance = max(max(specularColor.r, specularColor.g), specularColor.b);\r\n    baseColor.rgb = (1. - reflectance) * baseColor.rgb;\r\n\r\n    // Compute Specular Fresnel + Reflectance.\r\n    float NdotV = max(0.00000000001, dot(normalW, viewDirectionW));\r\n\r\n    // Adapt glossiness.\r\n    glossiness = clamp(glossiness, 0., 1.) * 0.98;\r\n\r\n    // Call rough to not conflict with previous one.\r\n    float rough = clamp(1. - glossiness, 0.000001, 1.0);\r\n\r\n    // Lighting\r\n    vec3 diffuseBase = vec3(0., 0., 0.);\r\n\r\n#ifdef OVERLOADEDSHADOWVALUES\r\n    vec3 shadowedOnlyDiffuseBase = vec3(1., 1., 1.);\r\n#endif\r\n\r\n#ifdef SPECULARTERM\r\n    vec3 specularBase = vec3(0., 0., 0.);\r\n#endif\r\n    float shadow = 1.;\r\n\r\n#ifdef LIGHT0\r\n#ifndef SPECULARTERM\r\n    vec3 vLightSpecular0 = vec3(0.0);\r\n#endif\r\n#ifdef SPOTLIGHT0\r\n    lightingInfo info = computeSpotLighting(viewDirectionW, normalW, vLightData0, vLightDirection0, vLightDiffuse0.rgb, vLightSpecular0, vLightDiffuse0.a, rough, NdotV);\r\n#endif\r\n#ifdef HEMILIGHT0\r\n    lightingInfo info = computeHemisphericLighting(viewDirectionW, normalW, vLightData0, vLightDiffuse0.rgb, vLightSpecular0, vLightGround0, rough, NdotV);\r\n#endif\r\n#if defined(POINTLIGHT0) || defined(DIRLIGHT0)\r\n    lightingInfo info = computeLighting(viewDirectionW, normalW, vLightData0, vLightDiffuse0.rgb, vLightSpecular0, vLightDiffuse0.a, rough, NdotV);\r\n#endif\r\n\r\n    shadow = 1.;\r\n    diffuseBase += info.diffuse * shadow;\r\n#ifdef OVERLOADEDSHADOWVALUES\r\n    shadowedOnlyDiffuseBase *= shadow;\r\n#endif\r\n\r\n#ifdef SPECULARTERM\r\n    specularBase += info.specular * shadow;\r\n#endif\r\n#endif\r\n\r\n#ifdef LIGHT1\r\n#ifndef SPECULARTERM\r\n    vec3 vLightSpecular1 = vec3(0.0);\r\n#endif\r\n#ifdef SPOTLIGHT1\r\n    info = computeSpotLighting(viewDirectionW, normalW, vLightData1, vLightDirection1, vLightDiffuse1.rgb, vLightSpecular1, vLightDiffuse1.a, rough, NdotV);\r\n#endif\r\n#ifdef HEMILIGHT1\r\n    info = computeHemisphericLighting(viewDirectionW, normalW, vLightData1, vLightDiffuse1.rgb, vLightSpecular1, vLightGround1, rough, NdotV);\r\n#endif\r\n#if defined(POINTLIGHT1) || defined(DIRLIGHT1)\r\n    info = computeLighting(viewDirectionW, normalW, vLightData1, vLightDiffuse1.rgb, vLightSpecular1, vLightDiffuse1.a, rough, NdotV);\r\n#endif\r\n\r\n    shadow = 1.;\r\n    diffuseBase += info.diffuse * shadow;\r\n#ifdef OVERLOADEDSHADOWVALUES\r\n    shadowedOnlyDiffuseBase *= shadow;\r\n#endif\r\n\r\n#ifdef SPECULARTERM\r\n    specularBase += info.specular * shadow;\r\n#endif\r\n#endif\r\n\r\n#ifdef LIGHT2\r\n#ifndef SPECULARTERM\r\n    vec3 vLightSpecular2 = vec3(0.0);\r\n#endif\r\n#ifdef SPOTLIGHT2\r\n    info = computeSpotLighting(viewDirectionW, normalW, vLightData2, vLightDirection2, vLightDiffuse2.rgb, vLightSpecular2, vLightDiffuse2.a, rough, NdotV);\r\n#endif\r\n#ifdef HEMILIGHT2\r\n    info = computeHemisphericLighting(viewDirectionW, normalW, vLightData2, vLightDiffuse2.rgb, vLightSpecular2, vLightGround2, rough, NdotV);\r\n#endif\r\n#if defined(POINTLIGHT2) || defined(DIRLIGHT2)\r\n    info = computeLighting(viewDirectionW, normalW, vLightData2, vLightDiffuse2.rgb, vLightSpecular2, vLightDiffuse2.a, rough, NdotV);\r\n#endif\r\n\r\n    shadow = 1.;\r\n    diffuseBase += info.diffuse * shadow;\r\n#ifdef OVERLOADEDSHADOWVALUES\r\n    shadowedOnlyDiffuseBase *= shadow;\r\n#endif\r\n\r\n#ifdef SPECULARTERM\r\n    specularBase += info.specular * shadow;\r\n#endif\r\n#endif\r\n\r\n#ifdef LIGHT3\r\n#ifndef SPECULARTERM\r\n    vec3 vLightSpecular3 = vec3(0.0);\r\n#endif\r\n#ifdef SPOTLIGHT3\r\n    info = computeSpotLighting(viewDirectionW, normalW, vLightData3, vLightDirection3, vLightDiffuse3.rgb, vLightSpecular3, vLightDiffuse3.a, rough, NdotV);\r\n#endif\r\n#ifdef HEMILIGHT3\r\n    info = computeHemisphericLighting(viewDirectionW, normalW, vLightData3, vLightDiffuse3.rgb, vLightSpecular3, vLightGround3, rough, NdotV);\r\n#endif\r\n#if defined(POINTLIGHT3) || defined(DIRLIGHT3)\r\n    info = computeLighting(viewDirectionW, normalW, vLightData3, vLightDiffuse3.rgb, vLightSpecular3, vLightDiffuse3.a, rough, NdotV);\r\n#endif\r\n\r\n    shadow = 1.;\r\n    diffuseBase += info.diffuse * shadow;\r\n#ifdef OVERLOADEDSHADOWVALUES\r\n    shadowedOnlyDiffuseBase *= shadow;\r\n#endif\r\n\r\n#ifdef SPECULARTERM\r\n    specularBase += info.specular * shadow;\r\n#endif\r\n#endif\r\n\r\n// Reflection\r\nvec3 reflectionColor = vReflectionColor.rgb;\r\nvec3 ambientReflectionColor = vReflectionColor.rgb;\r\n\r\nreflectionColor *= vLightingIntensity.z;\r\nambientReflectionColor *= vLightingIntensity.z;\r\n\r\n// Compute reflection specular fresnel\r\nvec3 specularEnvironmentR0 = specularColor.rgb;\r\nvec3 specularEnvironmentR90 = vec3(1.0, 1.0, 1.0);\r\nvec3 specularEnvironmentReflectanceViewer = FresnelSchlickEnvironmentGGX(clamp(NdotV, 0., 1.), specularEnvironmentR0, specularEnvironmentR90, sqrt(glossiness));\r\nreflectionColor *= specularEnvironmentReflectanceViewer;\r\n\r\n#ifdef OVERLOADEDVALUES\r\n    ambientReflectionColor = mix(ambientReflectionColor, vOverloadedReflection, vOverloadedGlossiness.z);\r\n    reflectionColor = mix(reflectionColor, vOverloadedReflection, vOverloadedGlossiness.z);\r\n#endif\r\n\r\n#ifdef OPACITY\r\n    vec4 opacityMap = texture2D(opacitySampler, vOpacityUV);\r\n\r\n#ifdef OPACITYRGB\r\n    opacityMap.rgb = opacityMap.rgb * vec3(0.3, 0.59, 0.11);\r\n    alpha *= (opacityMap.x + opacityMap.y + opacityMap.z)* vOpacityInfos.y;\r\n#else\r\n    alpha *= opacityMap.a * vOpacityInfos.y;\r\n#endif\r\n\r\n#endif\r\n\r\n#ifdef VERTEXALPHA\r\n    alpha *= vColor.a;\r\n#endif\r\n\r\n    // Emissive\r\n    vec3 emissiveColor = vEmissiveColor;\r\n#ifdef EMISSIVE\r\n    vec3 emissiveColorTex = texture2D(emissiveSampler, vEmissiveUV).rgb;\r\n    emissiveColor = toLinearSpace(emissiveColorTex.rgb) * emissiveColor * vEmissiveInfos.y;\r\n#endif\r\n\r\n#ifdef OVERLOADEDVALUES\r\n    emissiveColor = mix(emissiveColor, vOverloadedEmissive, vOverloadedIntensity.w);\r\n#endif\r\n\r\n    // Composition\r\n#ifdef EMISSIVEASILLUMINATION\r\n    vec3 finalDiffuse = max(diffuseBase * diffuseColor + vAmbientColor, 0.0) * baseColor.rgb;\r\n\r\n    #ifdef OVERLOADEDSHADOWVALUES\r\n        shadowedOnlyDiffuseBase = max(shadowedOnlyDiffuseBase * diffuseColor + vAmbientColor, 0.0) * baseColor.rgb;\r\n    #endif\r\n#else\r\n    #ifdef LINKEMISSIVEWITHDIFFUSE\r\n        vec3 finalDiffuse = max((diffuseBase + emissiveColor) * diffuseColor + vAmbientColor, 0.0) * baseColor.rgb;\r\n        #ifdef OVERLOADEDSHADOWVALUES\r\n                shadowedOnlyDiffuseBase = max((shadowedOnlyDiffuseBase + emissiveColor) * diffuseColor + vAmbientColor, 0.0) * baseColor.rgb;\r\n        #endif\r\n    #else\r\n        vec3 finalDiffuse = max(diffuseBase * diffuseColor + emissiveColor + vAmbientColor, 0.0) * baseColor.rgb;\r\n        #ifdef OVERLOADEDSHADOWVALUES\r\n            shadowedOnlyDiffuseBase = max(shadowedOnlyDiffuseBase * diffuseColor + emissiveColor + vAmbientColor, 0.0) * baseColor.rgb;\r\n        #endif\r\n    #endif\r\n#endif\r\n\r\n#ifdef OVERLOADEDSHADOWVALUES\r\n      finalDiffuse = mix(finalDiffuse, shadowedOnlyDiffuseBase, (1.0 - vOverloadedShadowIntensity.y));\r\n#endif\r\n\r\n// diffuse lighting from environment 0.2 replaces Harmonic...\r\n// Ambient Reflection already includes the environment intensity.\r\nfinalDiffuse += baseColor.rgb * ambientReflectionColor * 0.2;\r\n\r\n#ifdef SPECULARTERM\r\n    vec3 finalSpecular = specularBase * specularColor;\r\n#else\r\n    vec3 finalSpecular = vec3(0.0);\r\n#endif\r\n\r\n#ifdef SPECULAROVERALPHA\r\n    alpha = clamp(alpha + dot(finalSpecular, vec3(0.3, 0.59, 0.11)), 0., 1.);\r\n#endif\r\n\r\n// Composition\r\n// Reflection already includes the environment intensity.\r\n#ifdef EMISSIVEASILLUMINATION\r\n    vec4 color = vec4(finalDiffuse * baseAmbientColor * vLightingIntensity.x + finalSpecular * vLightingIntensity.x + reflectionColor + emissiveColor * vLightingIntensity.y, alpha);\r\n#else\r\n    vec4 color = vec4(finalDiffuse * baseAmbientColor * vLightingIntensity.x + finalSpecular * vLightingIntensity.x + reflectionColor, alpha);\r\n#endif\r\n\r\n    color = max(color, 0.0);\r\n\r\n#ifdef CAMERATONEMAP\r\n    color.rgb = toneMaps(color.rgb);\r\n#endif\r\n\r\n    color.rgb = toGammaSpace(color.rgb);\r\n\r\n#ifdef CAMERACONTRAST\r\n    color = contrasts(color);\r\n#endif\r\n\r\n    gl_FragColor = color;\r\n}";