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- {"ast":null,"code":"// Do not edit.\nimport { ShaderStore } from \"../../Engines/shaderStore.js\";\nconst name = \"importanceSampling\";\nconst shader = `fn hemisphereCosSample(u: vec2f)->vec3f {var phi: f32=2.*PI*u.x;var cosTheta2: f32=1.-u.y;var cosTheta: f32=sqrt(cosTheta2);var sinTheta: f32=sqrt(1.-cosTheta2);return vec3f(sinTheta*cos(phi),sinTheta*sin(phi),cosTheta);}\nfn hemisphereImportanceSampleDggx(u: vec2f,a: f32)->vec3f {var phi: f32=2.*PI*u.x;var cosTheta2: f32=(1.-u.y)/(1.+(a+1.)*((a-1.)*u.y));var cosTheta: f32=sqrt(cosTheta2);var sinTheta: f32=sqrt(1.-cosTheta2);return vec3f(sinTheta*cos(phi),sinTheta*sin(phi),cosTheta);}\nfn hemisphereImportanceSampleDCharlie(u: vec2f,a: f32)->vec3f { \nvar phi: f32=2.*PI*u.x;var sinTheta: f32=pow(u.y,a/(2.*a+1.));var cosTheta: f32=sqrt(1.-sinTheta*sinTheta);return vec3f(sinTheta*cos(phi),sinTheta*sin(phi),cosTheta);}`;\n// Sideeffect\nShaderStore.IncludesShadersStoreWGSL[name] = shader;\n/** @internal */\nexport const importanceSamplingWGSL = {\n name,\n shader\n};","map":{"version":3,"names":["ShaderStore","name","shader","IncludesShadersStoreWGSL","importanceSamplingWGSL"],"sources":["F:/workspace/202226701027/huinongbao-app/node_modules/@babylonjs/core/ShadersWGSL/ShadersInclude/importanceSampling.js"],"sourcesContent":["// Do not edit.\nimport { ShaderStore } from \"../../Engines/shaderStore.js\";\nconst name = \"importanceSampling\";\nconst shader = `fn hemisphereCosSample(u: vec2f)->vec3f {var phi: f32=2.*PI*u.x;var cosTheta2: f32=1.-u.y;var cosTheta: f32=sqrt(cosTheta2);var sinTheta: f32=sqrt(1.-cosTheta2);return vec3f(sinTheta*cos(phi),sinTheta*sin(phi),cosTheta);}\nfn hemisphereImportanceSampleDggx(u: vec2f,a: f32)->vec3f {var phi: f32=2.*PI*u.x;var cosTheta2: f32=(1.-u.y)/(1.+(a+1.)*((a-1.)*u.y));var cosTheta: f32=sqrt(cosTheta2);var sinTheta: f32=sqrt(1.-cosTheta2);return vec3f(sinTheta*cos(phi),sinTheta*sin(phi),cosTheta);}\nfn hemisphereImportanceSampleDCharlie(u: vec2f,a: f32)->vec3f { \nvar phi: f32=2.*PI*u.x;var sinTheta: f32=pow(u.y,a/(2.*a+1.));var cosTheta: f32=sqrt(1.-sinTheta*sinTheta);return vec3f(sinTheta*cos(phi),sinTheta*sin(phi),cosTheta);}`;\n// Sideeffect\nShaderStore.IncludesShadersStoreWGSL[name] = shader;\n/** @internal */\nexport const importanceSamplingWGSL = { name, shader };\n"],"mappings":"AAAA;AACA,SAASA,WAAW,QAAQ,8BAA8B;AAC1D,MAAMC,IAAI,GAAG,oBAAoB;AACjC,MAAMC,MAAM,GAAG;AACf;AACA;AACA,wKAAwK;AACxK;AACAF,WAAW,CAACG,wBAAwB,CAACF,IAAI,CAAC,GAAGC,MAAM;AACnD;AACA,OAAO,MAAME,sBAAsB,GAAG;EAAEH,IAAI;EAAEC;AAAO,CAAC","ignoreList":[]},"metadata":{},"sourceType":"module","externalDependencies":[]}
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