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add option to blend in linear gamma

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hunterk 2017-06-14 09:25:43 -05:00
parent c8b177a9da
commit 046904ea99
1 changed files with 12 additions and 2 deletions
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14
dithering/shaders/gdapt/gdapt-pass1.slang
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@ -16,10 +16,12 @@ layout(push_constant) uniform Push
uint FrameCount;
float STEPS;
float DEBUG;
float linear_gamma;
} params;
#pragma parameter STEPS "GDAPT Error Prevention LVL" 1.0 0.0 5.0 1.0
#pragma parameter DEBUG "GDAPT Adjust View" 0.0 0.0 1.0 1.0
#pragma parameter linear_gamma "Use Linear Gamma" 0.0 0.0 1.0 1.0
layout(std140, set = 0, binding = 0) uniform UBO
{
@ -53,7 +55,13 @@ void main()
vec4 L = TEX(-1, 0);
vec4 R = TEX( 1, 0);
if(params.linear_gamma > 0.5)
{
C.xyz = pow(C.xyz, vec3(2.2)).xyz;
L.xyz = pow(L.xyz, vec3(2.2)).xyz;
R.xyz = pow(R.xyz, vec3(2.2)).xyz;
}
float str = 0.0;
if(params.STEPS == 0.0){
@ -89,5 +97,7 @@ void main()
float wght = max(L.w, R.w);
wght = (wght == 0.0) ? 1.0 : sum/wght;
FragColor = vec4(mix(C.xyz, (wght*C.xyz + L.w*L.xyz + R.w*R.xyz)/(wght + sum), str), 1.0);
vec4 final = vec4(mix(C.xyz, (wght*C.xyz + L.w*L.xyz + R.w*R.xyz)/(wght + sum), str), 1.0);
FragColor = final;
if(params.linear_gamma > 0.5) FragColor = pow(final, vec4(1.0 / 2.2));
}