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SMAA: Fix color edge detection

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Fix incorrect calculation of local contrast adaption in color edge detection

This is the fix from PR iryoku/smaa#11
This commit is contained in:
Jonatas Esteves 2021-09-13 21:16:41 -03:00
parent a7b7e9179d
commit 629f08f7b1
1 changed files with 2 additions and 2 deletions
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4
anti-aliasing/shaders/smaa/SMAA.hlsl
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@ -792,11 +792,11 @@ float2 SMAAColorEdgeDetectionPS(float2 texcoord,
// Calculate left-left and top-top deltas: // Calculate left-left and top-top deltas:
float3 Cleftleft = SMAASamplePoint(colorTex, offset[2].xy).rgb; float3 Cleftleft = SMAASamplePoint(colorTex, offset[2].xy).rgb;
t = abs(C - Cleftleft); t = abs(Cleft - Cleftleft);
delta.z = max(max(t.r, t.g), t.b); delta.z = max(max(t.r, t.g), t.b);
float3 Ctoptop = SMAASamplePoint(colorTex, offset[2].zw).rgb; float3 Ctoptop = SMAASamplePoint(colorTex, offset[2].zw).rgb;
t = abs(C - Ctoptop); t = abs(Ctop - Ctoptop);
delta.w = max(max(t.r, t.g), t.b); delta.w = max(max(t.r, t.g), t.b);
// Calculate the final maximum delta: // Calculate the final maximum delta: