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filters/color-grading: Fix incorrect Lift logic (#515)

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Fixes #515
This commit is contained in:
Michael Fabian 'Xaymar' Dirks 2021-04-14 11:36:45 +02:00
parent 27c3420f31
commit 083ba935bc
1 changed files with 4 additions and 2 deletions
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6
data/effects/color-grade.effect
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@ -50,8 +50,10 @@ uniform float4 pCorrection;
// Functionality
//------------------------------------------------------------------------------
float3 grade_lift(float3 v) { // same as grade_offset?
return (v.rgb + pLift.rgb) + pLift.a;
float3 grade_lift(float3 v) {
float3 multiplier1 = float3(1., 1., 1.) - pLift.rgb;
float3 multiplier2 = float3(1., 1., 1.) - pLift.aaa;
return float3(1., 1., 1.) - ((float3(1., 1., 1.) - v) * multiplier1 * multiplier2);
};
float3 grade_gamma(float3 v) {