{"ast":null,"code":"// Do not edit.\nimport { ShaderStore } from \"../Engines/shaderStore.js\";\nconst name = \"iblShadowsIcdfxPixelShader\";\nconst shader = `precision highp sampler2D;\n#define PI 3.1415927\nvarying vec2 vUV;uniform sampler2D cdfx;float fetchCDF(int x) {return texelFetch(cdfx,ivec2(x,0),0).x;}\nfloat bisect(int size,float targetValue)\n{int a=0,b=size-1;while (b-a>1) {int c=a+b>>1;if (fetchCDF(c)<targetValue)\na=c;else\nb=c;}\nreturn mix(float(a),float(b),(targetValue-fetchCDF(a))/(fetchCDF(b)-fetchCDF(a)))/float(size-1);}\nvoid main(void) {ivec2 cdfSize=textureSize(cdfx,0);int cdfWidth=cdfSize.x;int icdfWidth=cdfWidth-1;ivec2 currentPixel=ivec2(gl_FragCoord.xy);if (currentPixel.x==0)\n{gl_FragColor=vec4(0.0);}\nelse if (currentPixel.x==icdfWidth-1) {gl_FragColor=vec4(1.0);} else {float targetValue=fetchCDF(cdfWidth-1)*vUV.x;gl_FragColor=vec4(vec3(bisect(cdfWidth,targetValue)),1.0);}}`;\n// Sideeffect\nShaderStore.ShadersStore[name] = shader;\n/** @internal */\nexport const iblShadowsIcdfxPixelShader = {\n  name,\n  shader\n};","map":{"version":3,"names":["ShaderStore","name","shader","ShadersStore","iblShadowsIcdfxPixelShader"],"sources":["F:/workspace/202226701027/huinongbao-app/node_modules/@babylonjs/core/Shaders/iblShadowsIcdfx.fragment.js"],"sourcesContent":["// Do not edit.\nimport { ShaderStore } from \"../Engines/shaderStore.js\";\nconst name = \"iblShadowsIcdfxPixelShader\";\nconst shader = `precision highp sampler2D;\n#define PI 3.1415927\nvarying vec2 vUV;uniform sampler2D cdfx;float fetchCDF(int x) {return texelFetch(cdfx,ivec2(x,0),0).x;}\nfloat bisect(int size,float targetValue)\n{int a=0,b=size-1;while (b-a>1) {int c=a+b>>1;if (fetchCDF(c)<targetValue)\na=c;else\nb=c;}\nreturn mix(float(a),float(b),(targetValue-fetchCDF(a))/(fetchCDF(b)-fetchCDF(a)))/float(size-1);}\nvoid main(void) {ivec2 cdfSize=textureSize(cdfx,0);int cdfWidth=cdfSize.x;int icdfWidth=cdfWidth-1;ivec2 currentPixel=ivec2(gl_FragCoord.xy);if (currentPixel.x==0)\n{gl_FragColor=vec4(0.0);}\nelse if (currentPixel.x==icdfWidth-1) {gl_FragColor=vec4(1.0);} else {float targetValue=fetchCDF(cdfWidth-1)*vUV.x;gl_FragColor=vec4(vec3(bisect(cdfWidth,targetValue)),1.0);}}`;\n// Sideeffect\nShaderStore.ShadersStore[name] = shader;\n/** @internal */\nexport const iblShadowsIcdfxPixelShader = { name, shader };\n"],"mappings":"AAAA;AACA,SAASA,WAAW,QAAQ,2BAA2B;AACvD,MAAMC,IAAI,GAAG,4BAA4B;AACzC,MAAMC,MAAM,GAAG;AACf;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,gLAAgL;AAChL;AACAF,WAAW,CAACG,YAAY,CAACF,IAAI,CAAC,GAAGC,MAAM;AACvC;AACA,OAAO,MAAME,0BAA0B,GAAG;EAAEH,IAAI;EAAEC;AAAO,CAAC","ignoreList":[]},"metadata":{},"sourceType":"module","externalDependencies":[]}