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- {"ast":null,"code":"// Do not edit.\nimport { ShaderStore } from \"../Engines/shaderStore.js\";\nconst name = \"screenSpaceReflectionPixelShader\";\nconst shader = `uniform sampler2D textureSampler;\n#ifdef SSR_SUPPORTED\nuniform sampler2D reflectivitySampler;uniform sampler2D normalSampler;uniform sampler2D positionSampler;\n#endif\nuniform mat4 view;uniform mat4 projection;uniform float stepSize;uniform float strength;uniform float threshold;uniform float roughnessFactor;uniform float reflectionSpecularFalloffExponent;varying vec2 vUV;\n#ifdef SSR_SUPPORTED\nstruct ReflectionInfo {vec3 color;vec4 coords;};/**\n* According to specular,see https:\n*/\nvec3 fresnelSchlick(float cosTheta,vec3 F0)\n{return F0+(1.0-F0)*pow(1.0-cosTheta,5.0);}\n/**\n* Once the pixel's coordinates has been found,let's adjust (smooth) a little bit\n* by sampling multiple reflection pixels.\n*/\nReflectionInfo smoothReflectionInfo(vec3 dir,vec3 hitCoord)\n{ReflectionInfo info;info.color=vec3(0.0);vec4 projectedCoord;float sampledDepth;for(int i=0; i<SMOOTH_STEPS; i++)\n{projectedCoord=projection*vec4(hitCoord,1.0);projectedCoord.xy/=projectedCoord.w;projectedCoord.xy=0.5*projectedCoord.xy+vec2(0.5);sampledDepth=(view*texture2D(positionSampler,projectedCoord.xy)).z;float depth=sampledDepth-hitCoord.z;dir*=0.5;if(depth>0.0)\nhitCoord-=dir;else\nhitCoord+=dir;info.color+=texture2D(textureSampler,projectedCoord.xy).rgb;}\nprojectedCoord=projection*vec4(hitCoord,1.0);projectedCoord.xy/=projectedCoord.w;projectedCoord.xy=0.5*projectedCoord.xy+vec2(0.5);info.coords=vec4(projectedCoord.xy,sampledDepth,1.0);info.color+=texture2D(textureSampler,projectedCoord.xy).rgb;info.color/=float(SMOOTH_STEPS+1);return info;}\n/**\n* Tests the given world position (hitCoord) according to the given reflection vector (dir)\n* until it finds a collision (means that depth is enough close to say \"it's the pixel to sample!\").\n*/\nReflectionInfo getReflectionInfo(vec3 dir,vec3 hitCoord)\n{ReflectionInfo info;vec4 projectedCoord;float sampledDepth;dir*=stepSize;for(int i=0; i<REFLECTION_SAMPLES; i++)\n{hitCoord+=dir;projectedCoord=projection*vec4(hitCoord,1.0);projectedCoord.xy/=projectedCoord.w;projectedCoord.xy=0.5*projectedCoord.xy+vec2(0.5);sampledDepth=(view*texture2D(positionSampler,projectedCoord.xy)).z;float depth=sampledDepth-hitCoord.z;\n#ifdef RIGHT_HANDED_SCENE\ndepth*=-1.0;\n#endif\nif(((depth-dir.z)<threshold) && depth<=0.0)\n{\n#ifdef ENABLE_SMOOTH_REFLECTIONS\nreturn smoothReflectionInfo(dir,hitCoord);\n#else\ninfo.color=texture2D(textureSampler,projectedCoord.xy).rgb;info.coords=vec4(projectedCoord.xy,sampledDepth,0.0);return info;\n#endif\n}}\ninfo.color=texture2D(textureSampler,projectedCoord.xy).rgb;info.coords=vec4(projectedCoord.xy,sampledDepth,0.0);return info;}\nvec3 hash(vec3 a)\n{a=fract(a*0.8);a+=dot(a,a.yxz+19.19);return fract((a.xxy+a.yxx)*a.zyx);}\n#endif\nvoid main()\n{\n#ifdef SSR_SUPPORTED\nvec4 albedoFull=texture2D(textureSampler,vUV);vec3 albedo=albedoFull.rgb;float spec=texture2D(reflectivitySampler,vUV).r;if (spec==0.0) {gl_FragColor=albedoFull;return;}\nvec3 normal=(texture2D(normalSampler,vUV)).xyz;vec3 position=(view*texture2D(positionSampler,vUV)).xyz;vec3 reflected=normalize(reflect(normalize(position),normalize(normal)));float roughness=1.0-texture2D(reflectivitySampler,vUV).a;vec3 jitt=mix(vec3(0.0),hash(position),roughness)*roughnessFactor;ReflectionInfo info=getReflectionInfo(jitt+reflected,position);vec2 dCoords=smoothstep(0.2,0.6,abs(vec2(0.5,0.5)-info.coords.xy));float screenEdgefactor=clamp(1.0-(dCoords.x+dCoords.y),0.0,1.0);vec3 F0=vec3(0.04);F0 =mix(F0,albedo,spec);vec3 fresnel=fresnelSchlick(max(dot(normalize(normal),normalize(position)),0.0),F0);\n#ifdef RIGHT_HANDED_SCENE\nreflected.z*=-1.0;\n#endif\nfloat reflectionMultiplier=clamp(pow(spec*strength,reflectionSpecularFalloffExponent)*screenEdgefactor*reflected.z,0.0,0.9);float albedoMultiplier=1.0-reflectionMultiplier;vec3 SSR=info.color*fresnel;gl_FragColor=vec4((albedo*albedoMultiplier)+(SSR*reflectionMultiplier),albedoFull.a);\n#else\ngl_FragColor=texture2D(textureSampler,vUV);\n#endif\n}\n`;\n// Sideeffect\nShaderStore.ShadersStore[name] = shader;\n/** @internal */\nexport const screenSpaceReflectionPixelShader = {\n name,\n shader\n};","map":{"version":3,"names":["ShaderStore","name","shader","ShadersStore","screenSpaceReflectionPixelShader"],"sources":["F:/workspace/202226701027/huinongbao-app/node_modules/@babylonjs/core/Shaders/screenSpaceReflection.fragment.js"],"sourcesContent":["// Do not edit.\nimport { ShaderStore } from \"../Engines/shaderStore.js\";\nconst name = \"screenSpaceReflectionPixelShader\";\nconst shader = `uniform sampler2D textureSampler;\n#ifdef SSR_SUPPORTED\nuniform sampler2D reflectivitySampler;uniform sampler2D normalSampler;uniform sampler2D positionSampler;\n#endif\nuniform mat4 view;uniform mat4 projection;uniform float stepSize;uniform float strength;uniform float threshold;uniform float roughnessFactor;uniform float reflectionSpecularFalloffExponent;varying vec2 vUV;\n#ifdef SSR_SUPPORTED\nstruct ReflectionInfo {vec3 color;vec4 coords;};/**\n* According to specular,see https:\n*/\nvec3 fresnelSchlick(float cosTheta,vec3 F0)\n{return F0+(1.0-F0)*pow(1.0-cosTheta,5.0);}\n/**\n* Once the pixel's coordinates has been found,let's adjust (smooth) a little bit\n* by sampling multiple reflection pixels.\n*/\nReflectionInfo smoothReflectionInfo(vec3 dir,vec3 hitCoord)\n{ReflectionInfo info;info.color=vec3(0.0);vec4 projectedCoord;float sampledDepth;for(int i=0; i<SMOOTH_STEPS; i++)\n{projectedCoord=projection*vec4(hitCoord,1.0);projectedCoord.xy/=projectedCoord.w;projectedCoord.xy=0.5*projectedCoord.xy+vec2(0.5);sampledDepth=(view*texture2D(positionSampler,projectedCoord.xy)).z;float depth=sampledDepth-hitCoord.z;dir*=0.5;if(depth>0.0)\nhitCoord-=dir;else\nhitCoord+=dir;info.color+=texture2D(textureSampler,projectedCoord.xy).rgb;}\nprojectedCoord=projection*vec4(hitCoord,1.0);projectedCoord.xy/=projectedCoord.w;projectedCoord.xy=0.5*projectedCoord.xy+vec2(0.5);info.coords=vec4(projectedCoord.xy,sampledDepth,1.0);info.color+=texture2D(textureSampler,projectedCoord.xy).rgb;info.color/=float(SMOOTH_STEPS+1);return info;}\n/**\n* Tests the given world position (hitCoord) according to the given reflection vector (dir)\n* until it finds a collision (means that depth is enough close to say \"it's the pixel to sample!\").\n*/\nReflectionInfo getReflectionInfo(vec3 dir,vec3 hitCoord)\n{ReflectionInfo info;vec4 projectedCoord;float sampledDepth;dir*=stepSize;for(int i=0; i<REFLECTION_SAMPLES; i++)\n{hitCoord+=dir;projectedCoord=projection*vec4(hitCoord,1.0);projectedCoord.xy/=projectedCoord.w;projectedCoord.xy=0.5*projectedCoord.xy+vec2(0.5);sampledDepth=(view*texture2D(positionSampler,projectedCoord.xy)).z;float depth=sampledDepth-hitCoord.z;\n#ifdef RIGHT_HANDED_SCENE\ndepth*=-1.0;\n#endif\nif(((depth-dir.z)<threshold) && depth<=0.0)\n{\n#ifdef ENABLE_SMOOTH_REFLECTIONS\nreturn smoothReflectionInfo(dir,hitCoord);\n#else\ninfo.color=texture2D(textureSampler,projectedCoord.xy).rgb;info.coords=vec4(projectedCoord.xy,sampledDepth,0.0);return info;\n#endif\n}}\ninfo.color=texture2D(textureSampler,projectedCoord.xy).rgb;info.coords=vec4(projectedCoord.xy,sampledDepth,0.0);return info;}\nvec3 hash(vec3 a)\n{a=fract(a*0.8);a+=dot(a,a.yxz+19.19);return fract((a.xxy+a.yxx)*a.zyx);}\n#endif\nvoid main()\n{\n#ifdef SSR_SUPPORTED\nvec4 albedoFull=texture2D(textureSampler,vUV);vec3 albedo=albedoFull.rgb;float spec=texture2D(reflectivitySampler,vUV).r;if (spec==0.0) {gl_FragColor=albedoFull;return;}\nvec3 normal=(texture2D(normalSampler,vUV)).xyz;vec3 position=(view*texture2D(positionSampler,vUV)).xyz;vec3 reflected=normalize(reflect(normalize(position),normalize(normal)));float roughness=1.0-texture2D(reflectivitySampler,vUV).a;vec3 jitt=mix(vec3(0.0),hash(position),roughness)*roughnessFactor;ReflectionInfo info=getReflectionInfo(jitt+reflected,position);vec2 dCoords=smoothstep(0.2,0.6,abs(vec2(0.5,0.5)-info.coords.xy));float screenEdgefactor=clamp(1.0-(dCoords.x+dCoords.y),0.0,1.0);vec3 F0=vec3(0.04);F0 =mix(F0,albedo,spec);vec3 fresnel=fresnelSchlick(max(dot(normalize(normal),normalize(position)),0.0),F0);\n#ifdef RIGHT_HANDED_SCENE\nreflected.z*=-1.0;\n#endif\nfloat reflectionMultiplier=clamp(pow(spec*strength,reflectionSpecularFalloffExponent)*screenEdgefactor*reflected.z,0.0,0.9);float albedoMultiplier=1.0-reflectionMultiplier;vec3 SSR=info.color*fresnel;gl_FragColor=vec4((albedo*albedoMultiplier)+(SSR*reflectionMultiplier),albedoFull.a);\n#else\ngl_FragColor=texture2D(textureSampler,vUV);\n#endif\n}\n`;\n// Sideeffect\nShaderStore.ShadersStore[name] = shader;\n/** @internal */\nexport const screenSpaceReflectionPixelShader = { name, shader };\n"],"mappings":"AAAA;AACA,SAASA,WAAW,QAAQ,2BAA2B;AACvD,MAAMC,IAAI,GAAG,kCAAkC;AAC/C,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,CAAC;AACD;AACAF,WAAW,CAACG,YAAY,CAACF,IAAI,CAAC,GAAGC,MAAM;AACvC;AACA,OAAO,MAAME,gCAAgC,GAAG;EAAEH,IAAI;EAAEC;AAAO,CAAC","ignoreList":[]},"metadata":{},"sourceType":"module","externalDependencies":[]}
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