22 lines
534 B
Plaintext
22 lines
534 B
Plaintext
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const float GAMMA = 2.2;
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const float INV_GAMMA = 1.0 / GAMMA;
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// linear to sRGB approximation
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// see http://chilliant.blogspot.com/2012/08/srgb-approximations-for-hlsl.html
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vec3 linearTosRGB(vec3 color)
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{
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return pow(color, vec3(INV_GAMMA));
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}
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// sRGB to linear approximation
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// see http://chilliant.blogspot.com/2012/08/srgb-approximations-for-hlsl.html
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vec3 sRGBToLinear(vec3 srgbIn)
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{
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return vec3(pow(srgbIn.xyz, vec3(GAMMA)));
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}
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vec4 sRGBToLinear(vec4 srgbIn)
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{
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return vec4(sRGBToLinear(srgbIn.xyz), srgbIn.w);
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}
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