mirror of
https://github.com/TorqueGameEngines/Torque3D.git
synced 2026-01-19 20:24:49 +00:00
3aef90a6bc
GBitmap Changes: Added all other formats to gbitmap that we support gbitmap now supports cubemaps added converters for all these other formats added stb_image_resize for extrudemips so we can extrude mipmaps for all other formats GFXTextureManager Can now directly make cubemaps and texture arrays based on the GFXTextureProfile API implementations for all functions that cubemaps and arrays needed
71 lines
2.8 KiB
C++
71 lines
2.8 KiB
C++
//-----------------------------------------------------------------------------
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// Copyright (c) 2012 GarageGames, LLC
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//-----------------------------------------------------------------------------
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#ifndef IBL_UTILS_H_
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#define IBL_UTILS_H_
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#ifndef _GFXTARGET_H_
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#include "gfx/gfxTarget.h"
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#endif
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#ifndef _GFXCUBEMAP_H_
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#include "gfx/gfxCubemap.h"
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#endif
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#ifndef _COLOR_H_
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#include "core/color.h"
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#endif
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namespace IBLUtilities
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{
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void GenerateIrradianceMap(GFXTextureTargetRef renderTarget, GFXTexHandle cubemap, GFXTexHandle& cubemapOut);
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void GenerateAndSaveIrradianceMap(String outputPath, S32 resolution, GFXTexHandle cubemap, GFXTexHandle& cubemapOut);
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void GeneratePrefilterMap(GFXTextureTargetRef renderTarget, GFXTexHandle cubemap, U32 mipLevels, GFXTexHandle &cubemapOut);
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void GenerateAndSavePrefilterMap(String outputPath, S32 resolution, GFXTexHandle cubemap, U32 mipLevels, GFXTexHandle &cubemapOut);
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void SaveCubeMap(String outputPath, GFXTexHandle &cubemap);
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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(GFXTexHandle 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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};
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#endif
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