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Babylon.js
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Babylon.js
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materialsLibrary
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dist
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babylon.normalMaterial.min.js

babylon.normalMaterial.min.js 28 KB
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  1. var BABYLON;!function(e){var n=4,i=function(e){function n(){e.call(this),this.DIFFUSE=!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.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(n,e),n}(e.MaterialDefines),t=function(t){function o(n,o){t.call(this,n,o),this.diffuseColor=new e.Color3(1,1,1),this.disableLighting=!1,this._worldViewProjectionMatrix=e.Matrix.Zero(),this._scaledDiffuse=new e.Color3,this._defines=new i,this._cachedDefines=new i,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,n,i){return n?this._defines.INSTANCES!==i?!1:n._materialDefines&&n._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(),a=!1,d=!1;if(this._defines.reset(),s.texturesEnabled&&this.diffuseTexture&&e.StandardMaterial.DiffuseTextureEnabled){if(!this.diffuseTexture.isReady())return!1;d=!0,this._defines.DIFFUSE=!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 r=0;if(s.lightsEnabled&&!this.disableLighting)for(var h=0;h<s.lights.length;h++){var l=s.lights[h];if(l.isEnabled()){if(l._excludedMeshesIds.length>0){for(var c=0;c<l._excludedMeshesIds.length;c++){var u=s.getMeshByID(l._excludedMeshesIds[c]);u&&l.excludedMeshes.push(u)}l._excludedMeshesIds=[]}if(l._includedOnlyMeshesIds.length>0){for(var v=0;v<l._includedOnlyMeshesIds.length;v++){var g=s.getMeshByID(l._includedOnlyMeshesIds[v]);g&&l.includedOnlyMeshes.push(g)}l._includedOnlyMeshesIds=[]}if(l.canAffectMesh(t)){a=!0,this._defines["LIGHT"+r]=!0;var m;if(m=l instanceof e.SpotLight?"SPOTLIGHT"+r:l instanceof e.HemisphericLight?"HEMILIGHT"+r:l instanceof e.PointLight?"POINTLIGHT"+r:"DIRLIGHT"+r,this._defines[m]=!0,s.shadowsEnabled){var p=l.getShadowGenerator();t&&t.receiveShadows&&p&&(this._defines["SHADOW"+r]=!0,this._defines.SHADOWS=!0,(p.useVarianceShadowMap||p.useBlurVarianceShadowMap)&&(this._defines["SHADOWVSM"+r]=!0),p.usePoissonSampling&&(this._defines["SHADOWPCF"+r]=!0))}if(r++,r===n)break}}}if(t&&(a&&t.isVerticesDataPresent(e.VertexBuffer.NormalKind)&&(this._defines.NORMAL=!0),d&&(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"),r=0;n>r;r++)this._defines["LIGHT"+r]&&(r>0&&L.addFallback(r,"LIGHT"+r),this._defines["SHADOW"+r]&&L.addFallback(0,"SHADOW"+r),this._defines["SHADOWPCF"+r]&&L.addFallback(0,"SHADOWPCF"+r),this._defines["SHADOWVSM"+r]&&L.addFallback(0,"SHADOWVSM"+r));this._defines.BONES4&&L.addFallback(0,"BONES4");var I=[e.VertexBuffer.PositionKind];this._defines.NORMAL&&I.push(e.VertexBuffer.NormalKind),this._defines.UV1&&I.push(e.VertexBuffer.UVKind),this._defines.UV2&&I.push(e.VertexBuffer.UV2Kind),this._defines.VERTEXCOLOR&&I.push(e.VertexBuffer.ColorKind),this._defines.BONES&&(I.push(e.VertexBuffer.MatricesIndicesKind),I.push(e.VertexBuffer.MatricesWeightsKind)),this._defines.INSTANCES&&(I.push("world0"),I.push("world1"),I.push("world2"),I.push("world3"));var D="normal",S=this._defines.toString();this._effect=s.getEngine().createEffect(D,I,["world","view","viewProjection","vEyePosition","vLightsType","vDiffuseColor","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","mBones","vClipPlane","diffuseMatrix","shadowsInfo0","shadowsInfo1","shadowsInfo2","shadowsInfo3"],["diffuseSampler","shadowSampler0","shadowSampler1","shadowSampler2","shadowSampler3"],S,L,this.onCompiled,this.onError)}return this._effect.isReady()?(this._renderId=s.getRenderId(),this._wasPreviouslyReady=!0,t&&(t._materialDefines||(t._materialDefines=new i),this._defines.cloneTo(t._materialDefines)),!0):!1},o.prototype.bindOnlyWorldMatrix=function(e){this._effect.setMatrix("world",e)},o.prototype.bind=function(i,o){var s=this.getScene();if(this.bindOnlyWorldMatrix(i),this._effect.setMatrix("viewProjection",s.getTransformMatrix()),o&&o.useBones&&o.computeBonesUsingShaders&&this._effect.setMatrices("mBones",o.skeleton.getTransformMatrices()),s.getCachedMaterial()!==this){if(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())),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),s.lightsEnabled&&!this.disableLighting)for(var a=0,d=0;d<s.lights.length;d++){var r=s.lights[d];if(r.isEnabled()&&r.canAffectMesh(o)){if(r instanceof e.PointLight?r.transferToEffect(this._effect,"vLightData"+a):r instanceof e.DirectionalLight?r.transferToEffect(this._effect,"vLightData"+a):r instanceof e.SpotLight?r.transferToEffect(this._effect,"vLightData"+a,"vLightDirection"+a):r instanceof e.HemisphericLight&&r.transferToEffect(this._effect,"vLightData"+a,"vLightGround"+a),r.diffuse.scaleToRef(r.intensity,this._scaledDiffuse),this._effect.setColor4("vLightDiffuse"+a,this._scaledDiffuse,r.range),s.shadowsEnabled){var h=r.getShadowGenerator();o.receiveShadows&&h&&(this._effect.setMatrix("lightMatrix"+a,h.getTransformMatrix()),this._effect.setTexture("shadowSampler"+a,h.getShadowMapForRendering()),this._effect.setFloat3("shadowsInfo"+a,h.getDarkness(),h.getShadowMap().getSize().width,h.bias))}if(a++,a===n)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,i,o)},o.prototype.getAnimatables=function(){var e=[];return this.diffuseTexture&&this.diffuseTexture.animations&&this.diffuseTexture.animations.length>0&&e.push(this.diffuseTexture),e},o.prototype.dispose=function(e){this.diffuseTexture&&this.diffuseTexture.dispose(),t.prototype.dispose.call(this,e)},o.prototype.clone=function(e){var n=new o(e,this.getScene());return this.copyTo(n),this.diffuseTexture&&this.diffuseTexture.clone&&(n.diffuseTexture=this.diffuseTexture.clone()),n.diffuseColor=this.diffuseColor.clone(),n},o.prototype.serialize=function(){var e=t.prototype.serialize.call(this);return e.customType="BABYLON.NormalMaterial",e.diffuseColor=this.diffuseColor.asArray(),e.disableLighting=this.disableLighting,this.diffuseTexture&&(e.diffuseTexture=this.diffuseTexture.serialize()),e},o.Parse=function(n,i,t){var s=new o(n.name,i);return s.diffuseColor=e.Color3.FromArray(n.diffuseColor),s.disableLighting=n.disableLighting,s.alpha=n.alpha,s.id=n.id,e.Tags.AddTagsTo(s,n.tags),s.backFaceCulling=n.backFaceCulling,s.wireframe=n.wireframe,n.diffuseTexture&&(s.diffuseTexture=e.Texture.Parse(n.diffuseTexture,i,t)),n.checkReadyOnlyOnce&&(s.checkReadyOnlyOnce=n.checkReadyOnlyOnce),s},o}(e.Material);e.NormalMaterial=t}(BABYLON||(BABYLON={})),BABYLON.Effect.ShadersStore.normalVertexShader="precision highp float;\n\n// Attributes\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// Uniforms\n\n#ifdef INSTANCES\nattribute vec4 world0;\nattribute vec4 world1;\nattribute vec4 world2;\nattribute vec4 world3;\n#else\nuniform mat4 world;\n#endif\n\nuniform mat4 view;\nuniform mat4 viewProjection;\n\n#ifdef DIFFUSE\nvarying vec2 vDiffuseUV;\nuniform mat4 diffuseMatrix;\nuniform vec2 vDiffuseInfos;\n#endif\n\n#ifdef BONES\nuniform mat4 mBones[BonesPerMesh];\n#endif\n\n#ifdef POINTSIZE\nuniform float pointSize;\n#endif\n\n// Output\nvarying vec3 vPositionW;\n#ifdef NORMAL\nvarying vec3 vNormalW;\n#endif\n\n#ifdef VERTEXCOLOR\nvarying vec4 vColor;\n#endif\n\n#ifdef CLIPPLANE\nuniform vec4 vClipPlane;\nvarying float fClipDistance;\n#endif\n\n#ifdef FOG\nvarying float fFogDistance;\n#endif\n\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\n\nvoid main(void) {\n	mat4 finalWorld;\n\n#ifdef INSTANCES\n	finalWorld = mat4(world0, world1, world2, world3);\n#else\n	finalWorld = world;\n#endif\n\n#ifdef BONES\n	mat4 m0 = mBones[int(matricesIndices.x)] * matricesWeights.x;\n	mat4 m1 = mBones[int(matricesIndices.y)] * matricesWeights.y;\n	mat4 m2 = mBones[int(matricesIndices.z)] * matricesWeights.z;\n\n#ifdef BONES4\n	mat4 m3 = mBones[int(matricesIndices.w)] * matricesWeights.w;\n	finalWorld = finalWorld * (m0 + m1 + m2 + m3);\n#else\n	finalWorld = finalWorld * (m0 + m1 + m2);\n#endif \n\n#endif\n	gl_Position = viewProjection * finalWorld * vec4(position, 1.0);\n\n	vec4 worldPos = finalWorld * vec4(position, 1.0);\n	vPositionW = vec3(worldPos);\n\n#ifdef NORMAL\n	vNormalW = normalize(vec3(finalWorld * vec4(normal, 0.0)));\n#endif\n\n	// Texture coordinates\n#ifndef UV1\n	vec2 uv = vec2(0., 0.);\n#endif\n#ifndef UV2\n	vec2 uv2 = vec2(0., 0.);\n#endif\n\n#ifdef DIFFUSE\n	if (vDiffuseInfos.x == 0.)\n	{\n		vDiffuseUV = vec2(diffuseMatrix * vec4(uv, 1.0, 0.0));\n	}\n	else\n	{\n		vDiffuseUV = vec2(diffuseMatrix * vec4(uv2, 1.0, 0.0));\n	}\n#endif\n\n	// Clip plane\n#ifdef CLIPPLANE\n	fClipDistance = dot(worldPos, vClipPlane);\n#endif\n\n	// Fog\n#ifdef FOG\n	fFogDistance = (view * worldPos).z;\n#endif\n\n	// Shadows\n#ifdef SHADOWS\n#if defined(SPOTLIGHT0) || defined(DIRLIGHT0)\n	vPositionFromLight0 = lightMatrix0 * worldPos;\n#endif\n#if defined(SPOTLIGHT1) || defined(DIRLIGHT1)\n	vPositionFromLight1 = lightMatrix1 * worldPos;\n#endif\n#if defined(SPOTLIGHT2) || defined(DIRLIGHT2)\n	vPositionFromLight2 = lightMatrix2 * worldPos;\n#endif\n#if defined(SPOTLIGHT3) || defined(DIRLIGHT3)\n	vPositionFromLight3 = lightMatrix3 * worldPos;\n#endif\n#endif\n\n	// Vertex color\n#ifdef VERTEXCOLOR\n	vColor = color;\n#endif\n\n	// Point size\n#ifdef POINTSIZE\n	gl_PointSize = pointSize;\n#endif\n}\n",BABYLON.Effect.ShadersStore.normalPixelShader="precision highp float;\n\n// Constants\nuniform vec3 vEyePosition;\nuniform vec4 vDiffuseColor;\n\n// Input\nvarying vec3 vPositionW;\n\n#ifdef NORMAL\nvarying vec3 vNormalW;\n#endif\n\n#ifdef VERTEXCOLOR\nvarying vec4 vColor;\n#endif\n\n// Lights\n#ifdef LIGHT0\nuniform vec4 vLightData0;\nuniform vec4 vLightDiffuse0;\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\n#ifdef LIGHT1\nuniform vec4 vLightData1;\nuniform vec4 vLightDiffuse1;\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\n#ifdef LIGHT2\nuniform vec4 vLightData2;\nuniform vec4 vLightDiffuse2;\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\n#ifdef LIGHT3\nuniform vec4 vLightData3;\nuniform vec4 vLightDiffuse3;\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// Samplers\n#ifdef DIFFUSE\nvarying vec2 vDiffuseUV;\nuniform sampler2D diffuseSampler;\nuniform vec2 vDiffuseInfos;\n#endif\n\n// Shadows\n#ifdef SHADOWS\n\nfloat unpack(vec4 color)\n{\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);\n	return dot(color, bit_shift);\n}\n\n#if defined(POINTLIGHT0) || defined(POINTLIGHT1) || defined(POINTLIGHT2) || defined(POINTLIGHT3)\nfloat computeShadowCube(vec3 lightPosition, samplerCube shadowSampler, float darkness, float bias)\n{\n	vec3 directionToLight = vPositionW - lightPosition;\n	float depth = length(directionToLight);\n\n	depth = clamp(depth, 0., 1.);\n\n	directionToLight.y = 1.0 - directionToLight.y;\n\n	float shadow = unpack(textureCube(shadowSampler, directionToLight)) + bias;\n\n	if (depth > shadow)\n	{\n		return darkness;\n	}\n	return 1.0;\n}\n\nfloat computeShadowWithPCFCube(vec3 lightPosition, samplerCube shadowSampler, float bias, float darkness)\n{\n	vec3 directionToLight = vPositionW - lightPosition;\n	float depth = length(directionToLight);\n\n	depth = clamp(depth, 0., 1.);\n\n	directionToLight.y = 1.0 - directionToLight.y;\n\n	float visibility = 1.;\n\n	vec3 poissonDisk[4];\n	poissonDisk[0] = vec3(-0.094201624, 0.04, -0.039906216);\n	poissonDisk[1] = vec3(0.094558609, -0.04, -0.076890725);\n	poissonDisk[2] = vec3(-0.094184101, 0.01, -0.092938870);\n	poissonDisk[3] = vec3(0.034495938, -0.01, 0.029387760);\n\n	// Poisson Sampling\n	float biasedDepth = depth - bias;\n\n	if (unpack(textureCube(shadowSampler, directionToLight + poissonDisk[0])) < biasedDepth) visibility -= 0.25;\n	if (unpack(textureCube(shadowSampler, directionToLight + poissonDisk[1])) < biasedDepth) visibility -= 0.25;\n	if (unpack(textureCube(shadowSampler, directionToLight + poissonDisk[2])) < biasedDepth) visibility -= 0.25;\n	if (unpack(textureCube(shadowSampler, directionToLight + poissonDisk[3])) < biasedDepth) visibility -= 0.25;\n\n	return  min(1.0, visibility + darkness);\n}\n#endif\n\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{\n	vec3 depth = vPositionFromLight.xyz / vPositionFromLight.w;\n	depth = 0.5 * depth + vec3(0.5);\n	vec2 uv = depth.xy;\n\n	if (uv.x < 0. || uv.x > 1.0 || uv.y < 0. || uv.y > 1.0)\n	{\n		return 1.0;\n	}\n\n	float shadow = unpack(texture2D(shadowSampler, uv)) + bias;\n\n	if (depth.z > shadow)\n	{\n		return darkness;\n	}\n	return 1.;\n}\n\nfloat computeShadowWithPCF(vec4 vPositionFromLight, sampler2D shadowSampler, float mapSize, float bias, float darkness)\n{\n	vec3 depth = vPositionFromLight.xyz / vPositionFromLight.w;\n	depth = 0.5 * depth + vec3(0.5);\n	vec2 uv = depth.xy;\n\n	if (uv.x < 0. || uv.x > 1.0 || uv.y < 0. || uv.y > 1.0)\n	{\n		return 1.0;\n	}\n\n	float visibility = 1.;\n\n	vec2 poissonDisk[4];\n	poissonDisk[0] = vec2(-0.94201624, -0.39906216);\n	poissonDisk[1] = vec2(0.94558609, -0.76890725);\n	poissonDisk[2] = vec2(-0.094184101, -0.92938870);\n	poissonDisk[3] = vec2(0.34495938, 0.29387760);\n\n	// Poisson Sampling\n	float biasedDepth = depth.z - bias;\n\n	if (unpack(texture2D(shadowSampler, uv + poissonDisk[0] / mapSize)) < biasedDepth) visibility -= 0.25;\n	if (unpack(texture2D(shadowSampler, uv + poissonDisk[1] / mapSize)) < biasedDepth) visibility -= 0.25;\n	if (unpack(texture2D(shadowSampler, uv + poissonDisk[2] / mapSize)) < biasedDepth) visibility -= 0.25;\n	if (unpack(texture2D(shadowSampler, uv + poissonDisk[3] / mapSize)) < biasedDepth) visibility -= 0.25;\n\n	return  min(1.0, visibility + darkness);\n}\n\n// Thanks to http://devmaster.net/\nfloat unpackHalf(vec2 color)\n{\n	return color.x + (color.y / 255.0);\n}\n\nfloat linstep(float low, float high, float v) {\n	return clamp((v - low) / (high - low), 0.0, 1.0);\n}\n\nfloat ChebychevInequality(vec2 moments, float compare, float bias)\n{\n	float p = smoothstep(compare - bias, compare, moments.x);\n	float variance = max(moments.y - moments.x * moments.x, 0.02);\n	float d = compare - moments.x;\n	float p_max = linstep(0.2, 1.0, variance / (variance + d * d));\n\n	return clamp(max(p, p_max), 0.0, 1.0);\n}\n\nfloat computeShadowWithVSM(vec4 vPositionFromLight, sampler2D shadowSampler, float bias, float darkness)\n{\n	vec3 depth = vPositionFromLight.xyz / vPositionFromLight.w;\n	depth = 0.5 * depth + vec3(0.5);\n	vec2 uv = depth.xy;\n\n	if (uv.x < 0. || uv.x > 1.0 || uv.y < 0. || uv.y > 1.0 || depth.z >= 1.0)\n	{\n		return 1.0;\n	}\n\n	vec4 texel = texture2D(shadowSampler, uv);\n\n	vec2 moments = vec2(unpackHalf(texel.xy), unpackHalf(texel.zw));\n	return min(1.0, 1.0 - ChebychevInequality(moments, depth.z, bias) + darkness);\n}\n#endif\n#endif\n\n\n#ifdef CLIPPLANE\nvarying float fClipDistance;\n#endif\n\n// Fog\n#ifdef FOG\n\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\n\nuniform vec4 vFogInfos;\nuniform vec3 vFogColor;\nvarying float fFogDistance;\n\nfloat CalcFogFactor()\n{\n	float fogCoeff = 1.0;\n	float fogStart = vFogInfos.y;\n	float fogEnd = vFogInfos.z;\n	float fogDensity = vFogInfos.w;\n\n	if (FOGMODE_LINEAR == vFogInfos.x)\n	{\n		fogCoeff = (fogEnd - fFogDistance) / (fogEnd - fogStart);\n	}\n	else if (FOGMODE_EXP == vFogInfos.x)\n	{\n		fogCoeff = 1.0 / pow(E, fFogDistance * fogDensity);\n	}\n	else if (FOGMODE_EXP2 == vFogInfos.x)\n	{\n		fogCoeff = 1.0 / pow(E, fFogDistance * fFogDistance * fogDensity * fogDensity);\n	}\n\n	return clamp(fogCoeff, 0.0, 1.0);\n}\n#endif\n\n// Light Computing\nstruct lightingInfo\n{\n	vec3 diffuse;\n};\n\nlightingInfo computeLighting(vec3 viewDirectionW, vec3 vNormal, vec4 lightData, vec3 diffuseColor, float range) {\n	lightingInfo result;\n\n	vec3 lightVectorW;\n	float attenuation = 1.0;\n	if (lightData.w == 0.)\n	{\n		vec3 direction = lightData.xyz - vPositionW;\n\n		attenuation = max(0., 1.0 - length(direction) / range);\n		lightVectorW = normalize(direction);\n	}\n	else\n	{\n		lightVectorW = normalize(-lightData.xyz);\n	}\n\n	// diffuse\n	float ndl = max(0., dot(vNormal, lightVectorW));\n	result.diffuse = ndl * diffuseColor * attenuation;\n\n	return result;\n}\n\nlightingInfo computeSpotLighting(vec3 viewDirectionW, vec3 vNormal, vec4 lightData, vec4 lightDirection, vec3 diffuseColor, float range) {\n	lightingInfo result;\n\n	vec3 direction = lightData.xyz - vPositionW;\n	vec3 lightVectorW = normalize(direction);\n	float attenuation = max(0., 1.0 - length(direction) / range);\n\n	// diffuse\n	float cosAngle = max(0., dot(-lightDirection.xyz, lightVectorW));\n	float spotAtten = 0.0;\n\n	if (cosAngle >= lightDirection.w)\n	{\n		cosAngle = max(0., pow(cosAngle, lightData.w));\n		spotAtten = clamp((cosAngle - lightDirection.w) / (1. - cosAngle), 0.0, 1.0);\n\n		// Diffuse\n		float ndl = max(0., dot(vNormal, -lightDirection.xyz));\n		result.diffuse = ndl * spotAtten * diffuseColor * attenuation;\n\n		return result;\n	}\n\n	result.diffuse = vec3(0.);\n\n	return result;\n}\n\nlightingInfo computeHemisphericLighting(vec3 viewDirectionW, vec3 vNormal, vec4 lightData, vec3 diffuseColor, vec3 groundColor) {\n	lightingInfo result;\n\n	// Diffuse\n	float ndl = dot(vNormal, lightData.xyz) * 0.5 + 0.5;\n	result.diffuse = mix(groundColor, diffuseColor, ndl);\n\n	return result;\n}\n\nvoid main(void) {\n	// Clip plane\n#ifdef CLIPPLANE\n	if (fClipDistance > 0.0)\n		discard;\n#endif\n\n	vec3 viewDirectionW = normalize(vEyePosition - vPositionW);\n\n	// Base color\n	vec4 baseColor = vec4(1., 1., 1., 1.);\n	vec3 diffuseColor = vDiffuseColor.rgb;\n\n	// Alpha\n	float alpha = vDiffuseColor.a;\n\n#ifdef DIFFUSE\n	baseColor = texture2D(diffuseSampler, vDiffuseUV);\n\n#ifdef ALPHATEST\n	if (baseColor.a < 0.4)\n		discard;\n#endif\n\n	baseColor.rgb *= vDiffuseInfos.y;\n#endif\n\n	// Mix with normal color\n	baseColor = mix(baseColor, vec4(vNormalW, 1.0), 0.5);\n\n#ifdef VERTEXCOLOR\n	baseColor.rgb *= vColor.rgb;\n#endif\n\n	// Bump\n#ifdef NORMAL\n	vec3 normalW = normalize(vNormalW);\n#else\n	vec3 normalW = vec3(1.0, 1.0, 1.0);\n#endif\n\n	// Lighting\n	vec3 diffuseBase = vec3(0., 0., 0.);\n	float shadow = 1.;\n\n#ifdef LIGHT0\n#ifdef SPOTLIGHT0\n	lightingInfo info = computeSpotLighting(viewDirectionW, normalW, vLightData0, vLightDirection0, vLightDiffuse0.rgb, vLightDiffuse0.a);\n#endif\n#ifdef HEMILIGHT0\n	lightingInfo info = computeHemisphericLighting(viewDirectionW, normalW, vLightData0, vLightDiffuse0.rgb, vLightGround0);\n#endif\n#if defined(POINTLIGHT0) || defined(DIRLIGHT0)\n	lightingInfo info = computeLighting(viewDirectionW, normalW, vLightData0, vLightDiffuse0.rgb, vLightDiffuse0.a);\n#endif\n#ifdef SHADOW0\n#ifdef SHADOWVSM0\n	shadow = computeShadowWithVSM(vPositionFromLight0, shadowSampler0, shadowsInfo0.z, shadowsInfo0.x);\n#else\n#ifdef SHADOWPCF0\n	#if defined(POINTLIGHT0)\n	shadow = computeShadowWithPCFCube(vLightData0.xyz, shadowSampler0, shadowsInfo0.z, shadowsInfo0.x);\n	#else\n	shadow = computeShadowWithPCF(vPositionFromLight0, shadowSampler0, shadowsInfo0.y, shadowsInfo0.z, shadowsInfo0.x);\n	#endif\n#else\n	#if defined(POINTLIGHT0)\n	shadow = computeShadowCube(vLightData0.xyz, shadowSampler0, shadowsInfo0.x, shadowsInfo0.z);\n	#else\n	shadow = computeShadow(vPositionFromLight0, shadowSampler0, shadowsInfo0.x, shadowsInfo0.z);\n	#endif\n#endif\n#endif\n#else\n	shadow = 1.;\n#endif\n	diffuseBase += info.diffuse * shadow;\n#endif\n\n#ifdef LIGHT1\n#ifdef SPOTLIGHT1\n	info = computeSpotLighting(viewDirectionW, normalW, vLightData1, vLightDirection1, vLightDiffuse1.rgb, vLightDiffuse1.a);\n#endif\n#ifdef HEMILIGHT1\n	info = computeHemisphericLighting(viewDirectionW, normalW, vLightData1, vLightDiffuse1.rgb, vLightGround1.a);\n#endif\n#if defined(POINTLIGHT1) || defined(DIRLIGHT1)\n	info = computeLighting(viewDirectionW, normalW, vLightData1, vLightDiffuse1.rgb, vLightDiffuse1.a);\n#endif\n#ifdef SHADOW1\n#ifdef SHADOWVSM1\n	shadow = computeShadowWithVSM(vPositionFromLight1, shadowSampler1, shadowsInfo1.z, shadowsInfo1.x);\n#else\n#ifdef SHADOWPCF1\n#if defined(POINTLIGHT1)\n	shadow = computeShadowWithPCFCube(vLightData1.xyz, shadowSampler1, shadowsInfo1.z, shadowsInfo1.x);\n#else\n	shadow = computeShadowWithPCF(vPositionFromLight1, shadowSampler1, shadowsInfo1.y, shadowsInfo1.z, shadowsInfo1.x);\n#endif\n#else\n	#if defined(POINTLIGHT1)\n	shadow = computeShadowCube(vLightData1.xyz, shadowSampler1, shadowsInfo1.x, shadowsInfo1.z);\n	#else\n	shadow = computeShadow(vPositionFromLight1, shadowSampler1, shadowsInfo1.x, shadowsInfo1.z);\n	#endif\n#endif\n#endif\n#else\n	shadow = 1.;\n#endif\n	diffuseBase += info.diffuse * shadow;\n#endif\n\n#ifdef LIGHT2\n#ifdef SPOTLIGHT2\n	info = computeSpotLighting(viewDirectionW, normalW, vLightData2, vLightDirection2, vLightDiffuse2.rgb, vLightDiffuse2.a);\n#endif\n#ifdef HEMILIGHT2\n	info = computeHemisphericLighting(viewDirectionW, normalW, vLightData2, vLightDiffuse2.rgb, vLightGround2);\n#endif\n#if defined(POINTLIGHT2) || defined(DIRLIGHT2)\n	info = computeLighting(viewDirectionW, normalW, vLightData2, vLightDiffuse2.rgb, vLightDiffuse2.a);\n#endif\n#ifdef SHADOW2\n#ifdef SHADOWVSM2\n	shadow = computeShadowWithVSM(vPositionFromLight2, shadowSampler2, shadowsInfo2.z, shadowsInfo2.x);\n#else\n#ifdef SHADOWPCF2\n#if defined(POINTLIGHT2)\n	shadow = computeShadowWithPCFCube(vLightData2.xyz, shadowSampler2, shadowsInfo2.z, shadowsInfo2.x);\n#else\n	shadow = computeShadowWithPCF(vPositionFromLight2, shadowSampler2, shadowsInfo2.y, shadowsInfo2.z, shadowsInfo2.x);\n#endif\n#else\n	#if defined(POINTLIGHT2)\n	shadow = computeShadowCube(vLightData2.xyz, shadowSampler2, shadowsInfo2.x, shadowsInfo2.z);\n	#else\n	shadow = computeShadow(vPositionFromLight2, shadowSampler2, shadowsInfo2.x, shadowsInfo2.z);\n	#endif\n#endif	\n#endif	\n#else\n	shadow = 1.;\n#endif\n	diffuseBase += info.diffuse * shadow;\n#endif\n\n#ifdef LIGHT3\n#ifdef SPOTLIGHT3\n	info = computeSpotLighting(viewDirectionW, normalW, vLightData3, vLightDirection3, vLightDiffuse3.rgb, vLightDiffuse3.a);\n#endif\n#ifdef HEMILIGHT3\n	info = computeHemisphericLighting(viewDirectionW, normalW, vLightData3, vLightDiffuse3.rgb, vLightGround3);\n#endif\n#if defined(POINTLIGHT3) || defined(DIRLIGHT3)\n	info = computeLighting(viewDirectionW, normalW, vLightData3, vLightDiffuse3.rgb, vLightDiffuse3.a);\n#endif\n#ifdef SHADOW3\n#ifdef SHADOWVSM3\n		shadow = computeShadowWithVSM(vPositionFromLight3, shadowSampler3, shadowsInfo3.z, shadowsInfo3.x);\n#else\n#ifdef SHADOWPCF3\n#if defined(POINTLIGHT3)\n	shadow = computeShadowWithPCFCube(vLightData3.xyz, shadowSampler3, shadowsInfo3.z, shadowsInfo3.x);\n#else\n	shadow = computeShadowWithPCF(vPositionFromLight3, shadowSampler3, shadowsInfo3.y, shadowsInfo3.z, shadowsInfo3.x);\n#endif\n#else\n	#if defined(POINTLIGHT3)\n	shadow = computeShadowCube(vLightData3.xyz, shadowSampler3, shadowsInfo3.x, shadowsInfo3.z);\n	#else\n	shadow = computeShadow(vPositionFromLight3, shadowSampler3, shadowsInfo3.x, shadowsInfo3.z);\n	#endif\n#endif	\n#endif	\n#else\n	shadow = 1.;\n#endif\n	diffuseBase += info.diffuse * shadow;\n#endif\n\n#ifdef VERTEXALPHA\n	alpha *= vColor.a;\n#endif\n\n	vec3 finalDiffuse = clamp(diffuseBase * diffuseColor, 0.0, 1.0) * baseColor.rgb;\n\n	// Composition\n	vec4 color = vec4(finalDiffuse, alpha);\n\n#ifdef FOG\n	float fog = CalcFogFactor();\n	color.rgb = fog * color.rgb + (1.0 - fog) * vFogColor;\n#endif\n\n	gl_FragColor = color;\n}";
    2.