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- {"ast":null,"code":"// Do not edit.\nimport { ShaderStore } from \"../Engines/shaderStore.js\";\nimport \"./ShadersInclude/fibonacci.js\";\nimport \"./ShadersInclude/helperFunctions.js\";\nimport \"./ShadersInclude/subSurfaceScatteringFunctions.js\";\nimport \"./ShadersInclude/diffusionProfile.js\";\nconst name = \"subSurfaceScatteringPixelShader\";\nconst shader = `#include<fibonacci>\n#include<helperFunctions>\n#include<subSurfaceScatteringFunctions>\n#include<diffusionProfile>\nvarying vec2 vUV;uniform vec2 texelSize;uniform sampler2D textureSampler;uniform sampler2D irradianceSampler;uniform sampler2D depthSampler;uniform sampler2D albedoSampler;uniform vec2 viewportSize;uniform float metersPerUnit;const float LOG2_E=1.4426950408889634;const float SSS_PIXELS_PER_SAMPLE=4.;const int _SssSampleBudget=40;\n#define rcp(x) 1./x\n#define Sq(x) x*x\n#define SSS_BILATERAL_FILTER true\nvec3 EvalBurleyDiffusionProfile(float r,vec3 S)\n{vec3 exp_13=exp2(((LOG2_E*(-1.0/3.0))*r)*S); \nvec3 expSum=exp_13*(1.+exp_13*exp_13); \nreturn (S*rcp(8.*PI))*expSum; }\nvec2 SampleBurleyDiffusionProfile(float u,float rcpS)\n{u=1.-u; \nfloat g=1.+(4.*u)*(2.*u+sqrt(1.+(4.*u)*u));float n=exp2(log2(g)*(-1.0/3.0)); \nfloat p=(g*n)*n; \nfloat c=1.+p+n; \nfloat d=(3./LOG2_E*2.)+(3./LOG2_E)*log2(u); \nfloat x=(3./LOG2_E)*log2(c)-d; \nfloat rcpExp=((c*c)*c)*rcp((4.*u)*((c*c)+(4.*u)*(4.*u)));float r=x*rcpS;float rcpPdf=(8.*PI*rcpS)*rcpExp; \nreturn vec2(r,rcpPdf);}\nvec3 ComputeBilateralWeight(float xy2,float z,float mmPerUnit,vec3 S,float rcpPdf)\n{\n#ifndef SSS_BILATERAL_FILTER\nz=0.;\n#endif\nfloat r=sqrt(xy2+(z*mmPerUnit)*(z*mmPerUnit));float area=rcpPdf;\n#if SSS_CLAMP_ARTIFACT\nreturn clamp(EvalBurleyDiffusionProfile(r,S)*area,0.0,1.0);\n#else\nreturn EvalBurleyDiffusionProfile(r,S)*area;\n#endif\n}\nvoid EvaluateSample(int i,int n,vec3 S,float d,vec3 centerPosVS,float mmPerUnit,float pixelsPerMm,\nfloat phase,inout vec3 totalIrradiance,inout vec3 totalWeight)\n{float scale =rcp(float(n));float offset=rcp(float(n))*0.5;float sinPhase,cosPhase;sinPhase=sin(phase);cosPhase=cos(phase);vec2 bdp=SampleBurleyDiffusionProfile(float(i)*scale+offset,d);float r=bdp.x;float rcpPdf=bdp.y;float phi=SampleDiskGolden(i,n).y;float sinPhi,cosPhi;sinPhi=sin(phi);cosPhi=cos(phi);float sinPsi=cosPhase*sinPhi+sinPhase*cosPhi; \nfloat cosPsi=cosPhase*cosPhi-sinPhase*sinPhi; \nvec2 vec=r*vec2(cosPsi,sinPsi);vec2 position; \nfloat xy2;position=vUV+round((pixelsPerMm*r)*vec2(cosPsi,sinPsi))*texelSize;xy2 =r*r;vec4 textureSample=texture2D(irradianceSampler,position);float viewZ=texture2D(depthSampler,position).r;vec3 irradiance =textureSample.rgb;if (testLightingForSSS(textureSample.a))\n{float relZ=viewZ-centerPosVS.z;vec3 weight=ComputeBilateralWeight(xy2,relZ,mmPerUnit,S,rcpPdf);totalIrradiance+=weight*irradiance;totalWeight +=weight;}\nelse\n{}}\n#define CUSTOM_FRAGMENT_DEFINITIONS\nvoid main(void) \n{vec4 irradianceAndDiffusionProfile =texture2D(irradianceSampler,vUV);vec3 centerIrradiance=irradianceAndDiffusionProfile.rgb;int diffusionProfileIndex=int(round(irradianceAndDiffusionProfile.a*255.));float centerDepth =0.;vec4 inputColor=texture2D(textureSampler,vUV);bool passedStencilTest=testLightingForSSS(irradianceAndDiffusionProfile.a);if (passedStencilTest)\n{centerDepth=texture2D(depthSampler,vUV).r;}\nif (!passedStencilTest) { \ngl_FragColor=inputColor;return;}\nfloat distScale =1.;vec3 S =diffusionS[diffusionProfileIndex];float d =diffusionD[diffusionProfileIndex];float filterRadius=filterRadii[diffusionProfileIndex];vec2 centerPosNDC=vUV;vec2 cornerPosNDC=vUV+0.5*texelSize;vec3 centerPosVS =vec3(centerPosNDC*viewportSize,1.0)*centerDepth; \nvec3 cornerPosVS =vec3(cornerPosNDC*viewportSize,1.0)*centerDepth; \nfloat mmPerUnit =1000.*(metersPerUnit*rcp(distScale));float unitsPerMm=rcp(mmPerUnit);float unitsPerPixel=2.*abs(cornerPosVS.x-centerPosVS.x);float pixelsPerMm =rcp(unitsPerPixel)*unitsPerMm;float filterArea =PI*Sq(filterRadius*pixelsPerMm);int sampleCount =int(filterArea*rcp(SSS_PIXELS_PER_SAMPLE));int sampleBudget=_SssSampleBudget;int texturingMode=0;vec3 albedo =texture2D(albedoSampler,vUV).rgb;if (distScale==0. || sampleCount<1)\n{\n#ifdef DEBUG_SSS_SAMPLES\nvec3 green=vec3(0.,1.,0.);gl_FragColor=vec4(green,1.0);return;\n#endif\ngl_FragColor=vec4(inputColor.rgb+albedo*centerIrradiance,1.0);return;}\n#ifdef DEBUG_SSS_SAMPLES\nvec3 red =vec3(1.,0.,0.);vec3 blue=vec3(0.,0.,1.);gl_FragColor=vec4(mix(blue,red,clamp(float(sampleCount)/float(sampleBudget),0.0,1.0)),1.0);return;\n#endif\nfloat phase=0.;int n=min(sampleCount,sampleBudget);vec3 centerWeight =vec3(0.); \nvec3 totalIrradiance=vec3(0.);vec3 totalWeight =vec3(0.);for (int i=0; i<n; i++)\n{EvaluateSample(i,n,S,d,centerPosVS,mmPerUnit,pixelsPerMm,\nphase,totalIrradiance,totalWeight);}\ntotalWeight=max(totalWeight,HALF_MIN);gl_FragColor=vec4(inputColor.rgb+albedo*max(totalIrradiance/totalWeight,vec3(0.0)),1.);}`;\n// Sideeffect\nShaderStore.ShadersStore[name] = shader;\n/** @internal */\nexport const subSurfaceScatteringPixelShader = {\n name,\n shader\n};","map":{"version":3,"names":["ShaderStore","name","shader","ShadersStore","subSurfaceScatteringPixelShader"],"sources":["F:/workspace/202226701027/huinongbao-app/node_modules/@babylonjs/core/Shaders/subSurfaceScattering.fragment.js"],"sourcesContent":["// Do not edit.\nimport { ShaderStore } from \"../Engines/shaderStore.js\";\nimport \"./ShadersInclude/fibonacci.js\";\nimport \"./ShadersInclude/helperFunctions.js\";\nimport \"./ShadersInclude/subSurfaceScatteringFunctions.js\";\nimport \"./ShadersInclude/diffusionProfile.js\";\nconst name = \"subSurfaceScatteringPixelShader\";\nconst shader = `#include<fibonacci>\n#include<helperFunctions>\n#include<subSurfaceScatteringFunctions>\n#include<diffusionProfile>\nvarying vec2 vUV;uniform vec2 texelSize;uniform sampler2D textureSampler;uniform sampler2D irradianceSampler;uniform sampler2D depthSampler;uniform sampler2D albedoSampler;uniform vec2 viewportSize;uniform float metersPerUnit;const float LOG2_E=1.4426950408889634;const float SSS_PIXELS_PER_SAMPLE=4.;const int _SssSampleBudget=40;\n#define rcp(x) 1./x\n#define Sq(x) x*x\n#define SSS_BILATERAL_FILTER true\nvec3 EvalBurleyDiffusionProfile(float r,vec3 S)\n{vec3 exp_13=exp2(((LOG2_E*(-1.0/3.0))*r)*S); \nvec3 expSum=exp_13*(1.+exp_13*exp_13); \nreturn (S*rcp(8.*PI))*expSum; }\nvec2 SampleBurleyDiffusionProfile(float u,float rcpS)\n{u=1.-u; \nfloat g=1.+(4.*u)*(2.*u+sqrt(1.+(4.*u)*u));float n=exp2(log2(g)*(-1.0/3.0)); \nfloat p=(g*n)*n; \nfloat c=1.+p+n; \nfloat d=(3./LOG2_E*2.)+(3./LOG2_E)*log2(u); \nfloat x=(3./LOG2_E)*log2(c)-d; \nfloat rcpExp=((c*c)*c)*rcp((4.*u)*((c*c)+(4.*u)*(4.*u)));float r=x*rcpS;float rcpPdf=(8.*PI*rcpS)*rcpExp; \nreturn vec2(r,rcpPdf);}\nvec3 ComputeBilateralWeight(float xy2,float z,float mmPerUnit,vec3 S,float rcpPdf)\n{\n#ifndef SSS_BILATERAL_FILTER\nz=0.;\n#endif\nfloat r=sqrt(xy2+(z*mmPerUnit)*(z*mmPerUnit));float area=rcpPdf;\n#if SSS_CLAMP_ARTIFACT\nreturn clamp(EvalBurleyDiffusionProfile(r,S)*area,0.0,1.0);\n#else\nreturn EvalBurleyDiffusionProfile(r,S)*area;\n#endif\n}\nvoid EvaluateSample(int i,int n,vec3 S,float d,vec3 centerPosVS,float mmPerUnit,float pixelsPerMm,\nfloat phase,inout vec3 totalIrradiance,inout vec3 totalWeight)\n{float scale =rcp(float(n));float offset=rcp(float(n))*0.5;float sinPhase,cosPhase;sinPhase=sin(phase);cosPhase=cos(phase);vec2 bdp=SampleBurleyDiffusionProfile(float(i)*scale+offset,d);float r=bdp.x;float rcpPdf=bdp.y;float phi=SampleDiskGolden(i,n).y;float sinPhi,cosPhi;sinPhi=sin(phi);cosPhi=cos(phi);float sinPsi=cosPhase*sinPhi+sinPhase*cosPhi; \nfloat cosPsi=cosPhase*cosPhi-sinPhase*sinPhi; \nvec2 vec=r*vec2(cosPsi,sinPsi);vec2 position; \nfloat xy2;position=vUV+round((pixelsPerMm*r)*vec2(cosPsi,sinPsi))*texelSize;xy2 =r*r;vec4 textureSample=texture2D(irradianceSampler,position);float viewZ=texture2D(depthSampler,position).r;vec3 irradiance =textureSample.rgb;if (testLightingForSSS(textureSample.a))\n{float relZ=viewZ-centerPosVS.z;vec3 weight=ComputeBilateralWeight(xy2,relZ,mmPerUnit,S,rcpPdf);totalIrradiance+=weight*irradiance;totalWeight +=weight;}\nelse\n{}}\n#define CUSTOM_FRAGMENT_DEFINITIONS\nvoid main(void) \n{vec4 irradianceAndDiffusionProfile =texture2D(irradianceSampler,vUV);vec3 centerIrradiance=irradianceAndDiffusionProfile.rgb;int diffusionProfileIndex=int(round(irradianceAndDiffusionProfile.a*255.));float centerDepth =0.;vec4 inputColor=texture2D(textureSampler,vUV);bool passedStencilTest=testLightingForSSS(irradianceAndDiffusionProfile.a);if (passedStencilTest)\n{centerDepth=texture2D(depthSampler,vUV).r;}\nif (!passedStencilTest) { \ngl_FragColor=inputColor;return;}\nfloat distScale =1.;vec3 S =diffusionS[diffusionProfileIndex];float d =diffusionD[diffusionProfileIndex];float filterRadius=filterRadii[diffusionProfileIndex];vec2 centerPosNDC=vUV;vec2 cornerPosNDC=vUV+0.5*texelSize;vec3 centerPosVS =vec3(centerPosNDC*viewportSize,1.0)*centerDepth; \nvec3 cornerPosVS =vec3(cornerPosNDC*viewportSize,1.0)*centerDepth; \nfloat mmPerUnit =1000.*(metersPerUnit*rcp(distScale));float unitsPerMm=rcp(mmPerUnit);float unitsPerPixel=2.*abs(cornerPosVS.x-centerPosVS.x);float pixelsPerMm =rcp(unitsPerPixel)*unitsPerMm;float filterArea =PI*Sq(filterRadius*pixelsPerMm);int sampleCount =int(filterArea*rcp(SSS_PIXELS_PER_SAMPLE));int sampleBudget=_SssSampleBudget;int texturingMode=0;vec3 albedo =texture2D(albedoSampler,vUV).rgb;if (distScale==0. || sampleCount<1)\n{\n#ifdef DEBUG_SSS_SAMPLES\nvec3 green=vec3(0.,1.,0.);gl_FragColor=vec4(green,1.0);return;\n#endif\ngl_FragColor=vec4(inputColor.rgb+albedo*centerIrradiance,1.0);return;}\n#ifdef DEBUG_SSS_SAMPLES\nvec3 red =vec3(1.,0.,0.);vec3 blue=vec3(0.,0.,1.);gl_FragColor=vec4(mix(blue,red,clamp(float(sampleCount)/float(sampleBudget),0.0,1.0)),1.0);return;\n#endif\nfloat phase=0.;int n=min(sampleCount,sampleBudget);vec3 centerWeight =vec3(0.); \nvec3 totalIrradiance=vec3(0.);vec3 totalWeight =vec3(0.);for (int i=0; i<n; i++)\n{EvaluateSample(i,n,S,d,centerPosVS,mmPerUnit,pixelsPerMm,\nphase,totalIrradiance,totalWeight);}\ntotalWeight=max(totalWeight,HALF_MIN);gl_FragColor=vec4(inputColor.rgb+albedo*max(totalIrradiance/totalWeight,vec3(0.0)),1.);}`;\n// Sideeffect\nShaderStore.ShadersStore[name] = shader;\n/** @internal */\nexport const subSurfaceScatteringPixelShader = { name, shader };\n"],"mappings":"AAAA;AACA,SAASA,WAAW,QAAQ,2BAA2B;AACvD,OAAO,+BAA+B;AACtC,OAAO,qCAAqC;AAC5C,OAAO,mDAAmD;AAC1D,OAAO,sCAAsC;AAC7C,MAAMC,IAAI,GAAG,iCAAiC;AAC9C,MAAMC,MAAM,GAAG;AACf;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,+HAA+H;AAC/H;AACAF,WAAW,CAACG,YAAY,CAACF,IAAI,CAAC,GAAGC,MAAM;AACvC;AACA,OAAO,MAAME,+BAA+B,GAAG;EAAEH,IAAI;EAAEC;AAAO,CAAC","ignoreList":[]},"metadata":{},"sourceType":"module","externalDependencies":[]}
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