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https://github.com/TorqueGameEngines/Torque3D.git
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30 lines
No EOL
1.1 KiB
C++
30 lines
No EOL
1.1 KiB
C++
#pragma once
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namespace IBLUtilities
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{
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void GenerateIrradianceMap(GFXTextureTargetRef renderTarget, GFXCubemapHandle cubemap, GFXCubemapHandle &cubemapOut);
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void GeneratePrefilterMap(GFXTextureTargetRef renderTarget, GFXCubemapHandle cubemap, U32 mipLevels, GFXCubemapHandle &cubemapOut);
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void GenerateBRDFTexture(GFXTexHandle &textureOut);
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void bakeReflection(String outputPath, S32 resolution);
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LinearColorF decodeSH(Point3F normal, const LinearColorF SHTerms[9], const F32 SHConstants[5]);
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MatrixF getSideMatrix(U32 side);
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F32 harmonics(U32 termId, Point3F normal);
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LinearColorF sampleSide(GBitmap* cubeFaceBitmaps[6], const U32& cubemapResolution, const U32& termindex, const U32& sideIndex);
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//
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//SH Calculations
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// From http://sunandblackcat.com/tipFullView.php?l=eng&topicid=32&topic=Spherical-Harmonics-From-Cube-Texture
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// With shader decode logic from https://github.com/nicknikolov/cubemap-sh
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void calculateSHTerms(GFXCubemapHandle cubemap, LinearColorF SHTerms[9], F32 SHConstants[5]);
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F32 texelSolidAngle(F32 aU, F32 aV, U32 width, U32 height);
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F32 areaElement(F32 x, F32 y);
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}; |