{"ast":null,"code":"// Do not edit.\nimport { ShaderStore } from \"../../Engines/shaderStore.js\";\nimport \"./samplerFragmentDeclaration.js\";\nconst name = \"bumpFragmentFunctions\";\nconst shader = `#if defined(BUMP)\n#include<samplerFragmentDeclaration>(_DEFINENAME_,BUMP,_VARYINGNAME_,Bump,_SAMPLERNAME_,bump)\n#endif\n#if defined(DETAIL)\n#include<samplerFragmentDeclaration>(_DEFINENAME_,DETAIL,_VARYINGNAME_,Detail,_SAMPLERNAME_,detail)\n#endif\n#if defined(BUMP) && defined(PARALLAX)\nconst float minSamples=4.;const float maxSamples=15.;const int iMaxSamples=15;vec2 parallaxOcclusion(vec3 vViewDirCoT,vec3 vNormalCoT,vec2 texCoord,float parallaxScale) {float parallaxLimit=length(vViewDirCoT.xy)/vViewDirCoT.z;parallaxLimit*=parallaxScale;vec2 vOffsetDir=normalize(vViewDirCoT.xy);vec2 vMaxOffset=vOffsetDir*parallaxLimit;float numSamples=maxSamples+(dot(vViewDirCoT,vNormalCoT)*(minSamples-maxSamples));float stepSize=1.0/numSamples;float currRayHeight=1.0;vec2 vCurrOffset=vec2(0,0);vec2 vLastOffset=vec2(0,0);float lastSampledHeight=1.0;float currSampledHeight=1.0;bool keepWorking=true;for (int i=0; i<iMaxSamples; i++)\n{currSampledHeight=texture2D(bumpSampler,texCoord+vCurrOffset).w;if (!keepWorking)\n{}\nelse if (currSampledHeight>currRayHeight)\n{float delta1=currSampledHeight-currRayHeight;float delta2=(currRayHeight+stepSize)-lastSampledHeight;float ratio=delta1/(delta1+delta2);vCurrOffset=(ratio)* vLastOffset+(1.0-ratio)*vCurrOffset;keepWorking=false;}\nelse\n{currRayHeight-=stepSize;vLastOffset=vCurrOffset;\n#ifdef PARALLAX_RHS\nvCurrOffset-=stepSize*vMaxOffset;\n#else\nvCurrOffset+=stepSize*vMaxOffset;\n#endif\nlastSampledHeight=currSampledHeight;}}\nreturn vCurrOffset;}\nvec2 parallaxOffset(vec3 viewDir,float heightScale)\n{float height=texture2D(bumpSampler,vBumpUV).w;vec2 texCoordOffset=heightScale*viewDir.xy*height;\n#ifdef PARALLAX_RHS\nreturn texCoordOffset;\n#else\nreturn -texCoordOffset;\n#endif\n}\n#endif\n`;\n// Sideeffect\nShaderStore.IncludesShadersStore[name] = shader;\n/** @internal */\nexport const bumpFragmentFunctions = {\n  name,\n  shader\n};","map":{"version":3,"names":["ShaderStore","name","shader","IncludesShadersStore","bumpFragmentFunctions"],"sources":["F:/workspace/202226701027/huinongbao-app/node_modules/@babylonjs/core/Shaders/ShadersInclude/bumpFragmentFunctions.js"],"sourcesContent":["// Do not edit.\nimport { ShaderStore } from \"../../Engines/shaderStore.js\";\nimport \"./samplerFragmentDeclaration.js\";\nconst name = \"bumpFragmentFunctions\";\nconst shader = `#if defined(BUMP)\n#include<samplerFragmentDeclaration>(_DEFINENAME_,BUMP,_VARYINGNAME_,Bump,_SAMPLERNAME_,bump)\n#endif\n#if defined(DETAIL)\n#include<samplerFragmentDeclaration>(_DEFINENAME_,DETAIL,_VARYINGNAME_,Detail,_SAMPLERNAME_,detail)\n#endif\n#if defined(BUMP) && defined(PARALLAX)\nconst float minSamples=4.;const float maxSamples=15.;const int iMaxSamples=15;vec2 parallaxOcclusion(vec3 vViewDirCoT,vec3 vNormalCoT,vec2 texCoord,float parallaxScale) {float parallaxLimit=length(vViewDirCoT.xy)/vViewDirCoT.z;parallaxLimit*=parallaxScale;vec2 vOffsetDir=normalize(vViewDirCoT.xy);vec2 vMaxOffset=vOffsetDir*parallaxLimit;float numSamples=maxSamples+(dot(vViewDirCoT,vNormalCoT)*(minSamples-maxSamples));float stepSize=1.0/numSamples;float currRayHeight=1.0;vec2 vCurrOffset=vec2(0,0);vec2 vLastOffset=vec2(0,0);float lastSampledHeight=1.0;float currSampledHeight=1.0;bool keepWorking=true;for (int i=0; i<iMaxSamples; i++)\n{currSampledHeight=texture2D(bumpSampler,texCoord+vCurrOffset).w;if (!keepWorking)\n{}\nelse if (currSampledHeight>currRayHeight)\n{float delta1=currSampledHeight-currRayHeight;float delta2=(currRayHeight+stepSize)-lastSampledHeight;float ratio=delta1/(delta1+delta2);vCurrOffset=(ratio)* vLastOffset+(1.0-ratio)*vCurrOffset;keepWorking=false;}\nelse\n{currRayHeight-=stepSize;vLastOffset=vCurrOffset;\n#ifdef PARALLAX_RHS\nvCurrOffset-=stepSize*vMaxOffset;\n#else\nvCurrOffset+=stepSize*vMaxOffset;\n#endif\nlastSampledHeight=currSampledHeight;}}\nreturn vCurrOffset;}\nvec2 parallaxOffset(vec3 viewDir,float heightScale)\n{float height=texture2D(bumpSampler,vBumpUV).w;vec2 texCoordOffset=heightScale*viewDir.xy*height;\n#ifdef PARALLAX_RHS\nreturn texCoordOffset;\n#else\nreturn -texCoordOffset;\n#endif\n}\n#endif\n`;\n// Sideeffect\nShaderStore.IncludesShadersStore[name] = shader;\n/** @internal */\nexport const bumpFragmentFunctions = { name, shader };\n"],"mappings":"AAAA;AACA,SAASA,WAAW,QAAQ,8BAA8B;AAC1D,OAAO,iCAAiC;AACxC,MAAMC,IAAI,GAAG,uBAAuB;AACpC,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,CAAC;AACD;AACAF,WAAW,CAACG,oBAAoB,CAACF,IAAI,CAAC,GAAGC,MAAM;AAC/C;AACA,OAAO,MAAME,qBAAqB,GAAG;EAAEH,IAAI;EAAEC;AAAO,CAAC","ignoreList":[]},"metadata":{},"sourceType":"module","externalDependencies":[]}