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zhangyupeng
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Babylon.js
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Babylon.js
/
materialsLibrary
/
dist
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babylon.terrainMaterial.min.js

babylon.terrainMaterial.min.js 32 KB
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  1. var __decorate=this&&this.__decorate||function(e,i,n,t){if("object"==typeof Reflect&&"function"==typeof Reflect.decorate)return Reflect.decorate(e,i,n,t);switch(arguments.length){case 2:return e.reduceRight(function(e,i){return i&&i(e)||e},i);case 3:return e.reduceRight(function(e,t){return void(t&&t(i,n))},void 0);case 4:return e.reduceRight(function(e,t){return t&&t(i,n,e)||e},t)}},BABYLON;!function(e){var i=4,n=function(e){function i(){e.call(this),this.DIFFUSE=!1,this.BUMP=!1,this.CLIPPLANE=!1,this.ALPHATEST=!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.DIRLIGHT0=!1,this.DIRLIGHT1=!1,this.DIRLIGHT2=!1,this.DIRLIGHT3=!1,this.POINTLIGHT0=!1,this.POINTLIGHT1=!1,this.POINTLIGHT2=!1,this.POINTLIGHT3=!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.SPECULARTERM=!1,this.NORMAL=!1,this.UV1=!1,this.UV2=!1,this.VERTEXCOLOR=!1,this.VERTEXALPHA=!1,this.BONES=!1,this.BONES4=!1,this.BonesPerMesh=0,this.INSTANCES=!1,this._keys=Object.keys(this)}return __extends(i,e),i}(e.MaterialDefines),t=function(t){function o(i,o){t.call(this,i,o),this.diffuseColor=new e.Color3(1,1,1),this.specularColor=new e.Color3(0,0,0),this.specularPower=64,this.disableLighting=!1,this._worldViewProjectionMatrix=e.Matrix.Zero(),this._scaledDiffuse=new e.Color3,this._scaledSpecular=new e.Color3,this._defines=new n,this._cachedDefines=new n,this._cachedDefines.BonesPerMesh=-1}return __extends(o,t),o.prototype.needAlphaBlending=function(){return this.alpha<1},o.prototype.needAlphaTesting=function(){return!1},o.prototype.getAlphaTestTexture=function(){return null},o.prototype._checkCache=function(e,i,n){return i?this._defines.INSTANCES!==n?!1:i._materialDefines&&i._materialDefines.isEqual(this._defines)?!0:!1:!0},o.prototype.isReady=function(t,o){if(this.checkReadyOnlyOnce&&this._wasPreviouslyReady)return!0;var s=this.getScene();if(!this.checkReadyOnEveryCall&&this._renderId===s.getRenderId()&&this._checkCache(s,t,o))return!0;var f=s.getEngine(),r=!1,a=!1;if(this._defines.reset(),s.texturesEnabled){if(this.mixTexture&&e.StandardMaterial.DiffuseTextureEnabled){if(!this.mixTexture.isReady())return!1;a=!0,this._defines.DIFFUSE=!0}(this.bumpTexture1||this.bumpTexture2||this.bumpTexture3)&&e.StandardMaterial.BumpTextureEnabled&&(a=!0,r=!0,this._defines.BUMP=!0)}s.clipPlane&&(this._defines.CLIPPLANE=!0),f.getAlphaTesting()&&(this._defines.ALPHATEST=!0),(this.pointsCloud||s.forcePointsCloud)&&(this._defines.POINTSIZE=!0),s.fogEnabled&&t&&t.applyFog&&s.fogMode!==e.Scene.FOGMODE_NONE&&this.fogEnabled&&(this._defines.FOG=!0);var d=0;if(s.lightsEnabled&&!this.disableLighting)for(var l=0;l<s.lights.length;l++){var h=s.lights[l];if(h.isEnabled()){if(h._excludedMeshesIds.length>0){for(var u=0;u<h._excludedMeshesIds.length;u++){var c=s.getMeshByID(h._excludedMeshesIds[u]);c&&h.excludedMeshes.push(c)}h._excludedMeshesIds=[]}if(h._includedOnlyMeshesIds.length>0){for(var v=0;v<h._includedOnlyMeshesIds.length;v++){var p=s.getMeshByID(h._includedOnlyMeshesIds[v]);p&&h.includedOnlyMeshes.push(p)}h._includedOnlyMeshesIds=[]}if(h.canAffectMesh(t)){r=!0,this._defines["LIGHT"+d]=!0;var m;if(m=h instanceof e.SpotLight?"SPOTLIGHT"+d:h instanceof e.HemisphericLight?"HEMILIGHT"+d:h instanceof e.PointLight?"POINTLIGHT"+d:"DIRLIGHT"+d,this._defines[m]=!0,h.specular.equalsFloats(0,0,0)||(this._defines.SPECULARTERM=!0),s.shadowsEnabled){var g=h.getShadowGenerator();t&&t.receiveShadows&&g&&(this._defines["SHADOW"+d]=!0,this._defines.SHADOWS=!0,(g.useVarianceShadowMap||g.useBlurVarianceShadowMap)&&(this._defines["SHADOWVSM"+d]=!0),g.usePoissonSampling&&(this._defines["SHADOWPCF"+d]=!0))}if(d++,d===i)break}}}if(t&&(r&&t.isVerticesDataPresent(e.VertexBuffer.NormalKind)&&(this._defines.NORMAL=!0),a&&(t.isVerticesDataPresent(e.VertexBuffer.UVKind)&&(this._defines.UV1=!0),t.isVerticesDataPresent(e.VertexBuffer.UV2Kind)&&(this._defines.UV2=!0)),t.useVertexColors&&t.isVerticesDataPresent(e.VertexBuffer.ColorKind)&&(this._defines.VERTEXCOLOR=!0,t.hasVertexAlpha&&(this._defines.VERTEXALPHA=!0)),t.useBones&&t.computeBonesUsingShaders&&(this._defines.BONES=!0,this._defines.BonesPerMesh=t.skeleton.bones.length+1,this._defines.BONES4=!0),o&&(this._defines.INSTANCES=!0)),!this._defines.isEqual(this._cachedDefines)){this._defines.cloneTo(this._cachedDefines),s.resetCachedMaterial();var L=new e.EffectFallbacks;for(this._defines.FOG&&L.addFallback(1,"FOG"),d=0;i>d;d++)this._defines["LIGHT"+d]&&(d>0&&L.addFallback(d,"LIGHT"+d),this._defines["SHADOW"+d]&&L.addFallback(0,"SHADOW"+d),this._defines["SHADOWPCF"+d]&&L.addFallback(0,"SHADOWPCF"+d),this._defines["SHADOWVSM"+d]&&L.addFallback(0,"SHADOWVSM"+d));this._defines.BONES4&&L.addFallback(0,"BONES4");var S=[e.VertexBuffer.PositionKind];this._defines.NORMAL&&S.push(e.VertexBuffer.NormalKind),this._defines.UV1&&S.push(e.VertexBuffer.UVKind),this._defines.UV2&&S.push(e.VertexBuffer.UV2Kind),this._defines.VERTEXCOLOR&&S.push(e.VertexBuffer.ColorKind),this._defines.BONES&&(S.push(e.VertexBuffer.MatricesIndicesKind),S.push(e.VertexBuffer.MatricesWeightsKind)),this._defines.INSTANCES&&(S.push("world0"),S.push("world1"),S.push("world2"),S.push("world3"));var T="terrain",I=this._defines.toString();this._effect=s.getEngine().createEffect(T,S,["world","view","viewProjection","vEyePosition","vLightsType","vDiffuseColor","vSpecularColor","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","vTextureInfos","mBones","vClipPlane","textureMatrix","shadowsInfo0","shadowsInfo1","shadowsInfo2","shadowsInfo3","diffuse1Infos","diffuse2Infos","diffuse3Infos"],["textureSampler","diffuse1Sampler","diffuse2Sampler","diffuse3Sampler","bump1Sampler","bump2Sampler","bump3Sampler","shadowSampler0","shadowSampler1","shadowSampler2","shadowSampler3"],I,L,this.onCompiled,this.onError)}return this._effect.isReady()?(this._renderId=s.getRenderId(),this._wasPreviouslyReady=!0,t&&(t._materialDefines||(t._materialDefines=new n),this._defines.cloneTo(t._materialDefines)),!0):!1},o.prototype.bindOnlyWorldMatrix=function(e){this._effect.setMatrix("world",e)},o.prototype.bind=function(n,o){var s=this.getScene();if(this.bindOnlyWorldMatrix(n),this._effect.setMatrix("viewProjection",s.getTransformMatrix()),o&&o.useBones&&o.computeBonesUsingShaders&&this._effect.setMatrices("mBones",o.skeleton.getTransformMatrices(o)),s.getCachedMaterial()!==this){if(this.mixTexture&&(this._effect.setTexture("textureSampler",this.mixTexture),this._effect.setFloat2("vTextureInfos",this.mixTexture.coordinatesIndex,this.mixTexture.level),this._effect.setMatrix("textureMatrix",this.mixTexture.getTextureMatrix()),e.StandardMaterial.DiffuseTextureEnabled&&(this.diffuseTexture1&&(this._effect.setTexture("diffuse1Sampler",this.diffuseTexture1),this._effect.setFloat2("diffuse1Infos",this.diffuseTexture1.uScale,this.diffuseTexture1.vScale)),this.diffuseTexture2&&(this._effect.setTexture("diffuse2Sampler",this.diffuseTexture2),this._effect.setFloat2("diffuse2Infos",this.diffuseTexture2.uScale,this.diffuseTexture2.vScale)),this.diffuseTexture3&&(this._effect.setTexture("diffuse3Sampler",this.diffuseTexture3),this._effect.setFloat2("diffuse3Infos",this.diffuseTexture3.uScale,this.diffuseTexture3.vScale))),e.StandardMaterial.BumpTextureEnabled&&s.getEngine().getCaps().standardDerivatives&&(this.bumpTexture1&&this._effect.setTexture("bump1Sampler",this.bumpTexture1),this.bumpTexture2&&this._effect.setTexture("bump2Sampler",this.bumpTexture2),this.bumpTexture3&&this._effect.setTexture("bump3Sampler",this.bumpTexture3))),s.clipPlane){var f=s.clipPlane;this._effect.setFloat4("vClipPlane",f.normal.x,f.normal.y,f.normal.z,f.d)}this.pointsCloud&&this._effect.setFloat("pointSize",this.pointSize),this._effect.setVector3("vEyePosition",s._mirroredCameraPosition?s._mirroredCameraPosition:s.activeCamera.position)}if(this._effect.setColor4("vDiffuseColor",this._scaledDiffuse,this.alpha*o.visibility),this._defines.SPECULARTERM&&this._effect.setColor4("vSpecularColor",this.specularColor,this.specularPower),s.lightsEnabled&&!this.disableLighting)for(var r=0,a=0;a<s.lights.length;a++){var d=s.lights[a];if(d.isEnabled()&&d.canAffectMesh(o)){if(d instanceof e.PointLight?d.transferToEffect(this._effect,"vLightData"+r):d instanceof e.DirectionalLight?d.transferToEffect(this._effect,"vLightData"+r):d instanceof e.SpotLight?d.transferToEffect(this._effect,"vLightData"+r,"vLightDirection"+r):d instanceof e.HemisphericLight&&d.transferToEffect(this._effect,"vLightData"+r,"vLightGround"+r),d.diffuse.scaleToRef(d.intensity,this._scaledDiffuse),this._effect.setColor4("vLightDiffuse"+r,this._scaledDiffuse,d.range),this._defines.SPECULARTERM&&(d.specular.scaleToRef(d.intensity,this._scaledSpecular),this._effect.setColor3("vLightSpecular"+r,this._scaledSpecular)),s.shadowsEnabled){var l=d.getShadowGenerator();o.receiveShadows&&l&&(this._effect.setMatrix("lightMatrix"+r,l.getTransformMatrix()),this._effect.setTexture("shadowSampler"+r,l.getShadowMapForRendering()),this._effect.setFloat3("shadowsInfo"+r,l.getDarkness(),l.getShadowMap().getSize().width,l.bias))}if(r++,r===i)break}}s.fogEnabled&&o.applyFog&&s.fogMode!==e.Scene.FOGMODE_NONE&&this._effect.setMatrix("view",s.getViewMatrix()),s.fogEnabled&&o.applyFog&&s.fogMode!==e.Scene.FOGMODE_NONE&&(this._effect.setFloat4("vFogInfos",s.fogMode,s.fogStart,s.fogEnd,s.fogDensity),this._effect.setColor3("vFogColor",s.fogColor)),t.prototype.bind.call(this,n,o)},o.prototype.getAnimatables=function(){var e=[];return this.mixTexture&&this.mixTexture.animations&&this.mixTexture.animations.length>0&&e.push(this.mixTexture),e},o.prototype.dispose=function(e){this.mixTexture&&this.mixTexture.dispose(),t.prototype.dispose.call(this,e)},o.prototype.clone=function(i){var n=this;return e.SerializationHelper.Clone(function(){return new o(i,n.getScene())},this)},o.prototype.serialize=function(){var i=e.SerializationHelper.Serialize(this);return i.customType="BABYLON.TerrainMaterial",i},o.Parse=function(i,n,t){return e.SerializationHelper.Parse(function(){return new o(i.name,n)},i,n,t)},__decorate([e.serializeAsTexture()],o.prototype,"mixTexture"),__decorate([e.serializeAsTexture()],o.prototype,"diffuseTexture1"),__decorate([e.serializeAsTexture()],o.prototype,"diffuseTexture2"),__decorate([e.serializeAsTexture()],o.prototype,"diffuseTexture3"),__decorate([e.serializeAsTexture()],o.prototype,"bumpTexture1"),__decorate([e.serializeAsTexture()],o.prototype,"bumpTexture2"),__decorate([e.serializeAsTexture()],o.prototype,"bumpTexture3"),__decorate([e.serializeAsColor3()],o.prototype,"diffuseColor"),__decorate([e.serializeAsColor3()],o.prototype,"specularColor"),__decorate([e.serialize()],o.prototype,"specularPower"),__decorate([e.serialize()],o.prototype,"disableLighting"),o}(e.Material);e.TerrainMaterial=t}(BABYLON||(BABYLON={})),BABYLON.Effect.ShadersStore.terrainVertexShader="precision highp float;\n\nattribute vec3 position;\n#ifdef NORMAL\nattribute vec3 normal;\n#endif\n#ifdef UV1\nattribute vec2 uv;\n#endif\n#ifdef UV2\nattribute vec2 uv2;\n#endif\n#ifdef VERTEXCOLOR\nattribute vec4 color;\n#endif\n#ifdef BONES\nattribute vec4 matricesIndices;\nattribute vec4 matricesWeights;\n#endif\n\n#ifdef INSTANCES\nattribute vec4 world0;\nattribute vec4 world1;\nattribute vec4 world2;\nattribute vec4 world3;\n#else\nuniform mat4 world;\n#endif\nuniform mat4 view;\nuniform mat4 viewProjection;\n#ifdef DIFFUSE\nvarying vec2 vTextureUV;\nuniform mat4 textureMatrix;\nuniform vec2 vTextureInfos;\n#endif\n#ifdef BONES\nuniform mat4 mBones[BonesPerMesh];\n#endif\n#ifdef POINTSIZE\nuniform float pointSize;\n#endif\n\nvarying vec3 vPositionW;\n#ifdef NORMAL\nvarying vec3 vNormalW;\n#endif\n#ifdef VERTEXCOLOR\nvarying vec4 vColor;\n#endif\n#ifdef CLIPPLANE\nuniform vec4 vClipPlane;\nvarying float fClipDistance;\n#endif\n#ifdef FOG\nvarying float fFogDistance;\n#endif\n#ifdef SHADOWS\n#if defined(SPOTLIGHT0) || defined(DIRLIGHT0)\nuniform mat4 lightMatrix0;\nvarying vec4 vPositionFromLight0;\n#endif\n#if defined(SPOTLIGHT1) || defined(DIRLIGHT1)\nuniform mat4 lightMatrix1;\nvarying vec4 vPositionFromLight1;\n#endif\n#if defined(SPOTLIGHT2) || defined(DIRLIGHT2)\nuniform mat4 lightMatrix2;\nvarying vec4 vPositionFromLight2;\n#endif\n#if defined(SPOTLIGHT3) || defined(DIRLIGHT3)\nuniform mat4 lightMatrix3;\nvarying vec4 vPositionFromLight3;\n#endif\n#endif\nvoid main(void) {\nmat4 finalWorld;\n#ifdef INSTANCES\nfinalWorld=mat4(world0,world1,world2,world3);\n#else\nfinalWorld=world;\n#endif\n#ifdef BONES\nmat4 m0=mBones[int(matricesIndices.x)]*matricesWeights.x;\nmat4 m1=mBones[int(matricesIndices.y)]*matricesWeights.y;\nmat4 m2=mBones[int(matricesIndices.z)]*matricesWeights.z;\n#ifdef BONES4\nmat4 m3=mBones[int(matricesIndices.w)]*matricesWeights.w;\nfinalWorld=finalWorld*(m0+m1+m2+m3);\n#else\nfinalWorld=finalWorld*(m0+m1+m2);\n#endif \n#endif\ngl_Position=viewProjection*finalWorld*vec4(position,1.0);\nvec4 worldPos=finalWorld*vec4(position,1.0);\nvPositionW=vec3(worldPos);\n#ifdef NORMAL\nvNormalW=normalize(vec3(finalWorld*vec4(normal,0.0)));\n#endif\n\n#ifndef UV1\nvec2 uv=vec2(0.,0.);\n#endif\n#ifndef UV2\nvec2 uv2=vec2(0.,0.);\n#endif\n#ifdef DIFFUSE\nif (vTextureInfos.x == 0.)\n{\nvTextureUV=vec2(textureMatrix*vec4(uv,1.0,0.0));\n}\nelse\n{\nvTextureUV=vec2(textureMatrix*vec4(uv2,1.0,0.0));\n}\n#endif\n\n#ifdef CLIPPLANE\nfClipDistance=dot(worldPos,vClipPlane);\n#endif\n\n#ifdef FOG\nfFogDistance=(view*worldPos).z;\n#endif\n\n#ifdef SHADOWS\n#if defined(SPOTLIGHT0) || defined(DIRLIGHT0)\nvPositionFromLight0=lightMatrix0*worldPos;\n#endif\n#if defined(SPOTLIGHT1) || defined(DIRLIGHT1)\nvPositionFromLight1=lightMatrix1*worldPos;\n#endif\n#if defined(SPOTLIGHT2) || defined(DIRLIGHT2)\nvPositionFromLight2=lightMatrix2*worldPos;\n#endif\n#if defined(SPOTLIGHT3) || defined(DIRLIGHT3)\nvPositionFromLight3=lightMatrix3*worldPos;\n#endif\n#endif\n\n#ifdef VERTEXCOLOR\nvColor=color;\n#endif\n\n#ifdef POINTSIZE\ngl_PointSize=pointSize;\n#endif\n}\n",BABYLON.Effect.ShadersStore.terrainPixelShader="precision highp float;\n\nuniform vec3 vEyePosition;\nuniform vec4 vDiffuseColor;\n#ifdef SPECULARTERM\nuniform vec4 vSpecularColor;\n#endif\n\nvarying vec3 vPositionW;\n#ifdef NORMAL\nvarying vec3 vNormalW;\n#endif\n#ifdef VERTEXCOLOR\nvarying vec4 vColor;\n#endif\n\n#ifdef LIGHT0\nuniform vec4 vLightData0;\nuniform vec4 vLightDiffuse0;\n#ifdef SPECULARTERM\nuniform vec3 vLightSpecular0;\n#endif\n#ifdef SHADOW0\n#if defined(SPOTLIGHT0) || defined(DIRLIGHT0)\nvarying vec4 vPositionFromLight0;\nuniform sampler2D shadowSampler0;\n#else\nuniform samplerCube shadowSampler0;\n#endif\nuniform vec3 shadowsInfo0;\n#endif\n#ifdef SPOTLIGHT0\nuniform vec4 vLightDirection0;\n#endif\n#ifdef HEMILIGHT0\nuniform vec3 vLightGround0;\n#endif\n#endif\n#ifdef LIGHT1\nuniform vec4 vLightData1;\nuniform vec4 vLightDiffuse1;\n#ifdef SPECULARTERM\nuniform vec3 vLightSpecular1;\n#endif\n#ifdef SHADOW1\n#if defined(SPOTLIGHT1) || defined(DIRLIGHT1)\nvarying vec4 vPositionFromLight1;\nuniform sampler2D shadowSampler1;\n#else\nuniform samplerCube shadowSampler1;\n#endif\nuniform vec3 shadowsInfo1;\n#endif\n#ifdef SPOTLIGHT1\nuniform vec4 vLightDirection1;\n#endif\n#ifdef HEMILIGHT1\nuniform vec3 vLightGround1;\n#endif\n#endif\n#ifdef LIGHT2\nuniform vec4 vLightData2;\nuniform vec4 vLightDiffuse2;\n#ifdef SPECULARTERM\nuniform vec3 vLightSpecular2;\n#endif\n#ifdef SHADOW2\n#if defined(SPOTLIGHT2) || defined(DIRLIGHT2)\nvarying vec4 vPositionFromLight2;\nuniform sampler2D shadowSampler2;\n#else\nuniform samplerCube shadowSampler2;\n#endif\nuniform vec3 shadowsInfo2;\n#endif\n#ifdef SPOTLIGHT2\nuniform vec4 vLightDirection2;\n#endif\n#ifdef HEMILIGHT2\nuniform vec3 vLightGround2;\n#endif\n#endif\n#ifdef LIGHT3\nuniform vec4 vLightData3;\nuniform vec4 vLightDiffuse3;\n#ifdef SPECULARTERM\nuniform vec3 vLightSpecular3;\n#endif\n#ifdef SHADOW3\n#if defined(SPOTLIGHT3) || defined(DIRLIGHT3)\nvarying vec4 vPositionFromLight3;\nuniform sampler2D shadowSampler3;\n#else\nuniform samplerCube shadowSampler3;\n#endif\nuniform vec3 shadowsInfo3;\n#endif\n#ifdef SPOTLIGHT3\nuniform vec4 vLightDirection3;\n#endif\n#ifdef HEMILIGHT3\nuniform vec3 vLightGround3;\n#endif\n#endif\n\n#ifdef DIFFUSE\nvarying vec2 vTextureUV;\nuniform sampler2D textureSampler;\nuniform vec2 vTextureInfos;\nuniform sampler2D diffuse1Sampler;\nuniform sampler2D diffuse2Sampler;\nuniform sampler2D diffuse3Sampler;\nuniform vec2 diffuse1Infos;\nuniform vec2 diffuse2Infos;\nuniform vec2 diffuse3Infos;\n#endif\n#ifdef BUMP\nuniform sampler2D bump1Sampler;\nuniform sampler2D bump2Sampler;\nuniform sampler2D bump3Sampler;\n#endif\n\n#ifdef SHADOWS\nfloat unpack(vec4 color)\n{\nconst vec4 bit_shift=vec4(1.0/(255.0*255.0*255.0),1.0/(255.0*255.0),1.0/255.0,1.0);\nreturn dot(color,bit_shift);\n}\n#if defined(POINTLIGHT0) || defined(POINTLIGHT1) || defined(POINTLIGHT2) || defined(POINTLIGHT3)\nfloat computeShadowCube(vec3 lightPosition,samplerCube shadowSampler,float darkness,float bias)\n{\nvec3 directionToLight=vPositionW-lightPosition;\nfloat depth=length(directionToLight);\ndepth=clamp(depth,0.,1.0);\ndirectionToLight=normalize(directionToLight);\ndirectionToLight.y =-directionToLight.y;\nfloat shadow=unpack(textureCube(shadowSampler,directionToLight))+bias;\nif (depth>shadow)\n{\nreturn darkness;\n}\nreturn 1.0;\n}\nfloat computeShadowWithPCFCube(vec3 lightPosition,samplerCube shadowSampler,float mapSize,float bias,float darkness)\n{\nvec3 directionToLight=vPositionW-lightPosition;\nfloat depth=length(directionToLight);\ndepth=clamp(depth,0.,1.0);\nfloat diskScale=2.0/mapSize;\ndirectionToLight=normalize(directionToLight);\ndirectionToLight.y=-directionToLight.y;\nfloat visibility=1.;\nvec3 poissonDisk[4];\npoissonDisk[0]=vec3(-1.0,1.0,-1.0);\npoissonDisk[1]=vec3(1.0,-1.0,-1.0);\npoissonDisk[2]=vec3(-1.0,-1.0,-1.0);\npoissonDisk[3]=vec3(1.0,-1.0,1.0);\n\nfloat biasedDepth=depth-bias;\nif (unpack(textureCube(shadowSampler,directionToLight+poissonDisk[0]*diskScale))<biasedDepth) visibility-=0.25;\nif (unpack(textureCube(shadowSampler,directionToLight+poissonDisk[1]*diskScale))<biasedDepth) visibility-=0.25;\nif (unpack(textureCube(shadowSampler,directionToLight+poissonDisk[2]*diskScale))<biasedDepth) visibility-=0.25;\nif (unpack(textureCube(shadowSampler,directionToLight+poissonDisk[3]*diskScale))<biasedDepth) visibility-=0.25;\nreturn min(1.0,visibility+darkness);\n}\n#endif\n#if defined(SPOTLIGHT0) || defined(SPOTLIGHT1) || defined(SPOTLIGHT2) || defined(SPOTLIGHT3) || defined(DIRLIGHT0) || defined(DIRLIGHT1) || defined(DIRLIGHT2) || defined(DIRLIGHT3)\nfloat computeShadow(vec4 vPositionFromLight,sampler2D shadowSampler,float darkness,float bias)\n{\nvec3 depth=vPositionFromLight.xyz/vPositionFromLight.w;\ndepth=0.5*depth+vec3(0.5);\nvec2 uv=depth.xy;\nif (uv.x<0. || uv.x>1.0 || uv.y<0. || uv.y>1.0)\n{\nreturn 1.0;\n}\nfloat shadow=unpack(texture2D(shadowSampler,uv))+bias;\nif (depth.z>shadow)\n{\nreturn darkness;\n}\nreturn 1.;\n}\nfloat computeShadowWithPCF(vec4 vPositionFromLight,sampler2D shadowSampler,float mapSize,float bias,float darkness)\n{\nvec3 depth=vPositionFromLight.xyz/vPositionFromLight.w;\ndepth=0.5*depth+vec3(0.5);\nvec2 uv=depth.xy;\nif (uv.x<0. || uv.x>1.0 || uv.y<0. || uv.y>1.0)\n{\nreturn 1.0;\n}\nfloat visibility=1.;\nvec2 poissonDisk[4];\npoissonDisk[0]=vec2(-0.94201624,-0.39906216);\npoissonDisk[1]=vec2(0.94558609,-0.76890725);\npoissonDisk[2]=vec2(-0.094184101,-0.92938870);\npoissonDisk[3]=vec2(0.34495938,0.29387760);\n\nfloat biasedDepth=depth.z-bias;\nif (unpack(texture2D(shadowSampler,uv+poissonDisk[0]/mapSize))<biasedDepth) visibility-=0.25;\nif (unpack(texture2D(shadowSampler,uv+poissonDisk[1]/mapSize))<biasedDepth) visibility-=0.25;\nif (unpack(texture2D(shadowSampler,uv+poissonDisk[2]/mapSize))<biasedDepth) visibility-=0.25;\nif (unpack(texture2D(shadowSampler,uv+poissonDisk[3]/mapSize))<biasedDepth) visibility-=0.25;\nreturn min(1.0,visibility+darkness);\n}\n\nfloat unpackHalf(vec2 color)\n{\nreturn color.x+(color.y/255.0);\n}\nfloat linstep(float low,float high,float v) {\nreturn clamp((v-low)/(high-low),0.0,1.0);\n}\nfloat ChebychevInequality(vec2 moments,float compare,float bias)\n{\nfloat p=smoothstep(compare-bias,compare,moments.x);\nfloat variance=max(moments.y-moments.x*moments.x,0.02);\nfloat d=compare-moments.x;\nfloat p_max=linstep(0.2,1.0,variance/(variance+d*d));\nreturn clamp(max(p,p_max),0.0,1.0);\n}\nfloat computeShadowWithVSM(vec4 vPositionFromLight,sampler2D shadowSampler,float bias,float darkness)\n{\nvec3 depth=vPositionFromLight.xyz/vPositionFromLight.w;\ndepth=0.5*depth+vec3(0.5);\nvec2 uv=depth.xy;\nif (uv.x<0. || uv.x>1.0 || uv.y<0. || uv.y>1.0 || depth.z>=1.0)\n{\nreturn 1.0;\n}\nvec4 texel=texture2D(shadowSampler,uv);\nvec2 moments=vec2(unpackHalf(texel.xy),unpackHalf(texel.zw));\nreturn min(1.0,1.0-ChebychevInequality(moments,depth.z,bias)+darkness);\n}\n#endif\n#endif\n#ifdef CLIPPLANE\nvarying float fClipDistance;\n#endif\n\n#ifdef FOG\n#define FOGMODE_NONE 0.\n#define FOGMODE_EXP 1.\n#define FOGMODE_EXP2 2.\n#define FOGMODE_LINEAR 3.\n#define E 2.71828\nuniform vec4 vFogInfos;\nuniform vec3 vFogColor;\nvarying float fFogDistance;\nfloat CalcFogFactor()\n{\nfloat fogCoeff=1.0;\nfloat fogStart=vFogInfos.y;\nfloat fogEnd=vFogInfos.z;\nfloat fogDensity=vFogInfos.w;\nif (FOGMODE_LINEAR == vFogInfos.x)\n{\nfogCoeff=(fogEnd-fFogDistance)/(fogEnd-fogStart);\n}\nelse if (FOGMODE_EXP == vFogInfos.x)\n{\nfogCoeff=1.0/pow(E,fFogDistance*fogDensity);\n}\nelse if (FOGMODE_EXP2 == vFogInfos.x)\n{\nfogCoeff=1.0/pow(E,fFogDistance*fFogDistance*fogDensity*fogDensity);\n}\nreturn clamp(fogCoeff,0.0,1.0);\n}\n#endif\n\n#ifdef BUMP\n#extension GL_OES_standard_derivatives : enable\n\nmat3 cotangent_frame(vec3 normal,vec3 p,vec2 uv)\n{\n\nvec3 dp1=dFdx(p);\nvec3 dp2=dFdy(p);\nvec2 duv1=dFdx(uv);\nvec2 duv2=dFdy(uv);\n\nvec3 dp2perp=cross(dp2,normal);\nvec3 dp1perp=cross(normal,dp1);\nvec3 tangent=dp2perp*duv1.x+dp1perp*duv2.x;\nvec3 binormal=dp2perp*duv1.y+dp1perp*duv2.y;\n\nfloat invmax=inversesqrt(max(dot(tangent,tangent),dot(binormal,binormal)));\nreturn mat3(tangent*invmax,binormal*invmax,normal);\n}\nvec3 perturbNormal(vec3 viewDir,vec3 mixColor)\n{ \nvec3 bump1Color=texture2D(bump1Sampler,vTextureUV*diffuse1Infos).xyz;\nvec3 bump2Color=texture2D(bump2Sampler,vTextureUV*diffuse2Infos).xyz;\nvec3 bump3Color=texture2D(bump3Sampler,vTextureUV*diffuse3Infos).xyz;\nbump1Color.rgb*=mixColor.r;\nbump2Color.rgb=mix(bump1Color.rgb,bump2Color.rgb,mixColor.g);\nvec3 map=mix(bump2Color.rgb,bump3Color.rgb,mixColor.b);\nmap=map*255./127.-128./127.;\nmat3 TBN=cotangent_frame(vNormalW*vTextureInfos.y,-viewDir,vTextureUV);\nreturn normalize(TBN*map);\n}\n#endif\n\nstruct lightingInfo\n{\nvec3 diffuse;\n#ifdef SPECULARTERM\nvec3 specular;\n#endif\n};\nlightingInfo computeLighting(vec3 viewDirectionW,vec3 vNormal,vec4 lightData,vec3 diffuseColor,vec3 specularColor,float range,float glossiness) {\nlightingInfo result;\nvec3 lightVectorW;\nfloat attenuation=1.0;\nif (lightData.w == 0.)\n{\nvec3 direction=lightData.xyz-vPositionW;\nattenuation=max(0.,1.0-length(direction)/range);\nlightVectorW=normalize(direction);\n}\nelse\n{\nlightVectorW=normalize(-lightData.xyz);\n}\n\nfloat ndl=max(0.,dot(vNormal,lightVectorW));\nresult.diffuse=ndl*diffuseColor*attenuation;\n#ifdef SPECULARTERM\n\nvec3 angleW=normalize(viewDirectionW+lightVectorW);\nfloat specComp=max(0.,dot(vNormal,angleW));\nspecComp=pow(specComp,max(1.,glossiness));\nresult.specular=specComp*specularColor*attenuation;\n#endif\nreturn result;\n}\nlightingInfo computeSpotLighting(vec3 viewDirectionW,vec3 vNormal,vec4 lightData,vec4 lightDirection,vec3 diffuseColor,vec3 specularColor,float range,float glossiness) {\nlightingInfo result;\nvec3 direction=lightData.xyz-vPositionW;\nvec3 lightVectorW=normalize(direction);\nfloat attenuation=max(0.,1.0-length(direction)/range);\n\nfloat cosAngle=max(0.,dot(-lightDirection.xyz,lightVectorW));\nfloat spotAtten=0.0;\nif (cosAngle>=lightDirection.w)\n{\ncosAngle=max(0.,pow(cosAngle,lightData.w));\nspotAtten=clamp((cosAngle-lightDirection.w)/(1.-cosAngle),0.0,1.0);\n\nfloat ndl=max(0.,dot(vNormal,-lightDirection.xyz));\nresult.diffuse=ndl*spotAtten*diffuseColor*attenuation;\n#ifdef SPECULARTERM\n\nvec3 angleW=normalize(viewDirectionW-lightDirection.xyz);\nfloat specComp=max(0.,dot(vNormal,angleW));\nspecComp=pow(specComp,max(1.,glossiness));\nresult.specular=specComp*specularColor*spotAtten*attenuation;\n#endif\nreturn result;\n}\nresult.diffuse=vec3(0.);\n#ifdef SPECULARTERM\nresult.specular=vec3(0.);\n#endif\nreturn result;\n}\nlightingInfo computeHemisphericLighting(vec3 viewDirectionW,vec3 vNormal,vec4 lightData,vec3 diffuseColor,vec3 specularColor,vec3 groundColor,float glossiness) {\nlightingInfo result;\n\nfloat ndl=dot(vNormal,lightData.xyz)*0.5+0.5;\nresult.diffuse=mix(groundColor,diffuseColor,ndl);\n#ifdef SPECULARTERM\n\nvec3 angleW=normalize(viewDirectionW+lightData.xyz);\nfloat specComp=max(0.,dot(vNormal,angleW));\nspecComp=pow(specComp,max(1.,glossiness));\nresult.specular=specComp*specularColor;\n#endif\nreturn result;\n}\nvoid main(void) {\n\n#ifdef CLIPPLANE\nif (fClipDistance>0.0)\ndiscard;\n#endif\nvec3 viewDirectionW=normalize(vEyePosition-vPositionW);\n\nvec4 baseColor=vec4(1.,1.,1.,1.);\nvec3 diffuseColor=vDiffuseColor.rgb;\n#ifdef SPECULARTERM\nfloat glossiness=vSpecularColor.a;\nvec3 specularColor=vSpecularColor.rgb;\n#else\nfloat glossiness=0.;\n#endif\n\nfloat alpha=vDiffuseColor.a;\n\n#ifdef NORMAL\nvec3 normalW=normalize(vNormalW);\n#else\nvec3 normalW=vec3(1.0,1.0,1.0);\n#endif\n#ifdef DIFFUSE\nbaseColor=texture2D(textureSampler,vTextureUV);\n#if defined(BUMP) && defined(DIFFUSE)\nnormalW=perturbNormal(viewDirectionW,baseColor.rgb);\n#endif\n#ifdef ALPHATEST\nif (baseColor.a<0.4)\ndiscard;\n#endif\nbaseColor.rgb*=vTextureInfos.y;\nvec4 diffuse1Color=texture2D(diffuse1Sampler,vTextureUV*diffuse1Infos);\nvec4 diffuse2Color=texture2D(diffuse2Sampler,vTextureUV*diffuse2Infos);\nvec4 diffuse3Color=texture2D(diffuse3Sampler,vTextureUV*diffuse3Infos);\ndiffuse1Color.rgb*=baseColor.r;\ndiffuse2Color.rgb=mix(diffuse1Color.rgb,diffuse2Color.rgb,baseColor.g);\nbaseColor.rgb=mix(diffuse2Color.rgb,diffuse3Color.rgb,baseColor.b);\n#endif\n#ifdef VERTEXCOLOR\nbaseColor.rgb*=vColor.rgb;\n#endif\n\nvec3 diffuseBase=vec3(0.,0.,0.);\n#ifdef SPECULARTERM\nvec3 specularBase=vec3(0.,0.,0.);\n#endif\nfloat shadow=1.;\n#ifdef LIGHT0\n#ifndef SPECULARTERM\nvec3 vLightSpecular0=vec3(0.0);\n#endif\n#ifdef SPOTLIGHT0\nlightingInfo info=computeSpotLighting(viewDirectionW,normalW,vLightData0,vLightDirection0,vLightDiffuse0.rgb,vLightSpecular0,vLightDiffuse0.a,glossiness);\n#endif\n#ifdef HEMILIGHT0\nlightingInfo info=computeHemisphericLighting(viewDirectionW,normalW,vLightData0,vLightDiffuse0.rgb,vLightSpecular0,vLightGround0,glossiness);\n#endif\n#if defined(POINTLIGHT0) || defined(DIRLIGHT0)\nlightingInfo info=computeLighting(viewDirectionW,normalW,vLightData0,vLightDiffuse0.rgb,vLightSpecular0,vLightDiffuse0.a,glossiness);\n#endif\n#ifdef SHADOW0\n#ifdef SHADOWVSM0\nshadow=computeShadowWithVSM(vPositionFromLight0,shadowSampler0,shadowsInfo0.z,shadowsInfo0.x);\n#else\n#ifdef SHADOWPCF0\n#if defined(POINTLIGHT0)\nshadow=computeShadowWithPCFCube(vLightData0.xyz,shadowSampler0,shadowsInfo0.y,shadowsInfo0.z,shadowsInfo0.x);\n#else\nshadow=computeShadowWithPCF(vPositionFromLight0,shadowSampler0,shadowsInfo0.y,shadowsInfo0.z,shadowsInfo0.x);\n#endif\n#else\n#if defined(POINTLIGHT0)\nshadow=computeShadowCube(vLightData0.xyz,shadowSampler0,shadowsInfo0.x,shadowsInfo0.z);\n#else\nshadow=computeShadow(vPositionFromLight0,shadowSampler0,shadowsInfo0.x,shadowsInfo0.z);\n#endif\n#endif\n#endif\n#else\nshadow=1.;\n#endif\ndiffuseBase+=info.diffuse*shadow;\n#ifdef SPECULARTERM\nspecularBase+=info.specular*shadow;\n#endif\n#endif\n#ifdef LIGHT1\n#ifndef SPECULARTERM\nvec3 vLightSpecular1=vec3(0.0);\n#endif\n#ifdef SPOTLIGHT1\ninfo=computeSpotLighting(viewDirectionW,normalW,vLightData1,vLightDirection1,vLightDiffuse1.rgb,vLightSpecular1,vLightDiffuse1.a,glossiness);\n#endif\n#ifdef HEMILIGHT1\ninfo=computeHemisphericLighting(viewDirectionW,normalW,vLightData1,vLightDiffuse1.rgb,vLightSpecular1,vLightGround1,glossiness);\n#endif\n#if defined(POINTLIGHT1) || defined(DIRLIGHT1)\ninfo=computeLighting(viewDirectionW,normalW,vLightData1,vLightDiffuse1.rgb,vLightSpecular1,vLightDiffuse1.a,glossiness);\n#endif\n#ifdef SHADOW1\n#ifdef SHADOWVSM1\nshadow=computeShadowWithVSM(vPositionFromLight1,shadowSampler1,shadowsInfo1.z,shadowsInfo1.x);\n#else\n#ifdef SHADOWPCF1\n#if defined(POINTLIGHT1)\nshadow=computeShadowWithPCFCube(vLightData1.xyz,shadowSampler1,shadowsInfo1.y,shadowsInfo1.z,shadowsInfo1.x);\n#else\nshadow=computeShadowWithPCF(vPositionFromLight1,shadowSampler1,shadowsInfo1.y,shadowsInfo1.z,shadowsInfo1.x);\n#endif\n#else\n#if defined(POINTLIGHT1)\nshadow=computeShadowCube(vLightData1.xyz,shadowSampler1,shadowsInfo1.x,shadowsInfo1.z);\n#else\nshadow=computeShadow(vPositionFromLight1,shadowSampler1,shadowsInfo1.x,shadowsInfo1.z);\n#endif\n#endif\n#endif\n#else\nshadow=1.;\n#endif\ndiffuseBase+=info.diffuse*shadow;\n#ifdef SPECULARTERM\nspecularBase+=info.specular*shadow;\n#endif\n#endif\n#ifdef LIGHT2\n#ifndef SPECULARTERM\nvec3 vLightSpecular2=vec3(0.0);\n#endif\n#ifdef SPOTLIGHT2\ninfo=computeSpotLighting(viewDirectionW,normalW,vLightData2,vLightDirection2,vLightDiffuse2.rgb,vLightSpecular2,vLightDiffuse2.a,glossiness);\n#endif\n#ifdef HEMILIGHT2\ninfo=computeHemisphericLighting(viewDirectionW,normalW,vLightData2,vLightDiffuse2.rgb,vLightSpecular2,vLightGround2,glossiness);\n#endif\n#if defined(POINTLIGHT2) || defined(DIRLIGHT2)\ninfo=computeLighting(viewDirectionW,normalW,vLightData2,vLightDiffuse2.rgb,vLightSpecular2,vLightDiffuse2.a,glossiness);\n#endif\n#ifdef SHADOW2\n#ifdef SHADOWVSM2\nshadow=computeShadowWithVSM(vPositionFromLight2,shadowSampler2,shadowsInfo2.z,shadowsInfo2.x);\n#else\n#ifdef SHADOWPCF2\n#if defined(POINTLIGHT2)\nshadow=computeShadowWithPCFCube(vLightData2.xyz,shadowSampler2,shadowsInfo2.y,shadowsInfo2.z,shadowsInfo2.x);\n#else\nshadow=computeShadowWithPCF(vPositionFromLight2,shadowSampler2,shadowsInfo2.y,shadowsInfo2.z,shadowsInfo2.x);\n#endif\n#else\n#if defined(POINTLIGHT2)\nshadow=computeShadowCube(vLightData2.xyz,shadowSampler2,shadowsInfo2.x,shadowsInfo2.z);\n#else\nshadow=computeShadow(vPositionFromLight2,shadowSampler2,shadowsInfo2.x,shadowsInfo2.z);\n#endif\n#endif \n#endif \n#else\nshadow=1.;\n#endif\ndiffuseBase+=info.diffuse*shadow;\n#ifdef SPECULARTERM\nspecularBase+=info.specular*shadow;\n#endif\n#endif\n#ifdef LIGHT3\n#ifndef SPECULARTERM\nvec3 vLightSpecular3=vec3(0.0);\n#endif\n#ifdef SPOTLIGHT3\ninfo=computeSpotLighting(viewDirectionW,normalW,vLightData3,vLightDirection3,vLightDiffuse3.rgb,vLightSpecular3,vLightDiffuse3.a,glossiness);\n#endif\n#ifdef HEMILIGHT3\ninfo=computeHemisphericLighting(viewDirectionW,normalW,vLightData3,vLightDiffuse3.rgb,vLightSpecular3,vLightGround3,glossiness);\n#endif\n#if defined(POINTLIGHT3) || defined(DIRLIGHT3)\ninfo=computeLighting(viewDirectionW,normalW,vLightData3,vLightDiffuse3.rgb,vLightSpecular3,vLightDiffuse3.a,glossiness);\n#endif\n#ifdef SHADOW3\n#ifdef SHADOWVSM3\nshadow=computeShadowWithVSM(vPositionFromLight3,shadowSampler3,shadowsInfo3.z,shadowsInfo3.x);\n#else\n#ifdef SHADOWPCF3\n#if defined(POINTLIGHT3)\nshadow=computeShadowWithPCFCube(vLightData3.xyz,shadowSampler3,shadowsInfo3.y,shadowsInfo3.z,shadowsInfo3.x);\n#else\nshadow=computeShadowWithPCF(vPositionFromLight3,shadowSampler3,shadowsInfo3.y,shadowsInfo3.z,shadowsInfo3.x);\n#endif\n#else\n#if defined(POINTLIGHT3)\nshadow=computeShadowCube(vLightData3.xyz,shadowSampler3,shadowsInfo3.x,shadowsInfo3.z);\n#else\nshadow=computeShadow(vPositionFromLight3,shadowSampler3,shadowsInfo3.x,shadowsInfo3.z);\n#endif\n#endif \n#endif \n#else\nshadow=1.;\n#endif\ndiffuseBase+=info.diffuse*shadow;\n#ifdef SPECULARTERM\nspecularBase+=info.specular*shadow;\n#endif\n#endif\n#ifdef VERTEXALPHA\nalpha*=vColor.a;\n#endif\n#ifdef SPECULARTERM\nvec3 finalSpecular=specularBase*specularColor;\n#else\nvec3 finalSpecular=vec3(0.0);\n#endif\nvec3 finalDiffuse=clamp(diffuseBase*diffuseColor*baseColor.rgb,0.0,1.0);\n\nvec4 color=vec4(finalDiffuse+finalSpecular,alpha);\n#ifdef FOG\nfloat fog=CalcFogFactor();\ncolor.rgb=fog*color.rgb+(1.0-fog)*vFogColor;\n#endif\ngl_FragColor=color;\n}\n";
    2.