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20 lines
618 B
GLSL
20 lines
618 B
GLSL
#include "core.h"
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#ifdef SH_FRAGMENT_SHADER
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SH_BEGIN_PROGRAM
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shInput(float2, UV)
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shSampler2D(SceneBuffer)
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shUniform(float2, contrast_invGamma) @shSharedParameter(contrast_invGamma)
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SH_START_PROGRAM
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{
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shOutputColour(0) = shSample(SceneBuffer, UV);
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// contrast
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shOutputColour(0).xyz = (shOutputColour(0).xyz - float3(0.5,0.5,0.5)) * contrast_invGamma.x + float3(0.5,0.5,0.5);
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shOutputColour(0).xyz = shSaturate(shOutputColour(0).xyz);
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// gamma
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shOutputColour(0).xyz = pow(shOutputColour(0).xyz, contrast_invGamma.yyy);
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}
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#endif
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