2020-05-22 19:59:34 +08:00
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/*
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2020-04-07 19:00:37 +08:00
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This shader experiments the effect of different tone mapping operators.
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This is still a work in progress.
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More info:
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http://slideshare.net/ozlael/hable-john-uncharted2-hdr-lighting
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http://filmicgames.com/archives/75
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http://filmicgames.com/archives/183
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http://filmicgames.com/archives/190
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http://imdoingitwrong.wordpress.com/2010/08/19/why-reinhard-desaturates-my-blacks-3/
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http://mynameismjp.wordpress.com/2010/04/30/a-closer-look-at-tone-mapping/
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http://renderwonk.com/publications/s2010-color-course/
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--
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Zavie
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*/
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2020-05-22 19:59:34 +08:00
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uniform float u_Exposure;
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2020-04-07 19:00:37 +08:00
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2020-05-22 19:59:34 +08:00
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vec3 toneMap(vec3 color)
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2020-04-07 19:00:37 +08:00
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{
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2020-05-22 19:59:34 +08:00
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color *= u_Exposure;
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2020-04-07 19:00:37 +08:00
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2020-05-22 19:59:34 +08:00
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#ifdef TONEMAP_UNCHARTED
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return toneMapUncharted(color);
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#endif
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2020-04-07 19:00:37 +08:00
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2020-05-22 19:59:34 +08:00
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#ifdef TONEMAP_HEJLRICHARD
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return toneMapHejlRichard(color);
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#endif
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2020-04-07 19:00:37 +08:00
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2020-05-22 19:59:34 +08:00
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#ifdef TONEMAP_ACES
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return toneMapACES(color);
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#endif
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2020-04-07 19:00:37 +08:00
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2020-05-22 19:59:34 +08:00
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#ifdef TONEMAP_LINEAR
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return linearToneMapping(color);
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#endif//TONEMAP_LINEAR
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#ifdef TONEMAP_SIMPLE_REINHARD
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return simpleReinhardToneMapping(color)
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#endif//TONEMAP_SIMPLE_REINHARD
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#ifdef TONEMAP_LUMA_BASED_REINHARD
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return lumaBasedReinhardToneMapping(color)
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#endif//TONE_MAP_LUMA_BASED_REINHARD
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#ifdef TONEMAP_WHITE_PRESERVING_LUMA_BASED_REINHARD
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return whitePreservingLumaBasedReinhardToneMapping(color)
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#endif//TONEMAP_WHITE_PRESERVING_LUMA_BASED_REINHARD
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#ifdef TONEMAP_ROM_BIN_DA_HOUSE
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return RomBinDaHouseToneMapping(color)
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#endif//TONEMAP_ROM_BIN_DA_HOUSE
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return linearTosRGB(color);
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2020-04-07 19:00:37 +08:00
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}
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