21 lines
574 B
Plaintext
21 lines
574 B
Plaintext
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// Uncharted 2 tone map
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// see: http://filmicworlds.com/blog/filmic-tonemapping-operators/
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vec3 toneMapUncharted2Impl(vec3 color)
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{
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const float A = 0.15;
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const float B = 0.50;
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const float C = 0.10;
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const float D = 0.20;
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const float E = 0.02;
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const float F = 0.30;
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return ((color*(A*color+C*B)+D*E)/(color*(A*color+B)+D*F))-E/F;
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}
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vec3 ToneMapping(vec3 color)
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{
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const float W = 11.2;
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color = toneMapUncharted2Impl(color * 2.0);
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vec3 whiteScale = 1.0 / toneMapUncharted2Impl(vec3(W));
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return linearTosRGB(color * whiteScale);
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}
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