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add option to blend in linear gamma

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hunterk 2017-06-14 09:16:09 -05:00
parent f5753a91a6
commit 7eb2eff5f2
1 changed files with 13 additions and 2 deletions
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15
dithering/shaders/gdapt/gdapt-pass1.glsl
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@ -16,13 +16,16 @@
// Parameter lines go here:
#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
#ifdef PARAMETER_UNIFORM
// All parameter floats need to have COMPAT_PRECISION in front of them
uniform COMPAT_PRECISION float STEPS;
uniform COMPAT_PRECISION float DEBUG;
uniform COMPAT_PRECISION float linear_gamma;
#else
#define STEPS 1.0
#define DEBUG 0.0
#define linear_gamma 0.0
#endif
#if defined(VERTEX)
@ -116,7 +119,13 @@ void main()
vec4 L = TEX(-1, 0);
vec4 R = TEX( 1, 0);
if(linear_gamma > 0.5)
{
C.xyz = pow(TEX( 0, 0), vec3(2.2)).xyz;
L.xyz = pow(TEX(-1, 0), vec3(2.2)).xyz;
R.xyz = pow(TEX( 1, 0), vec3(2.2)).xyz;
}
float str = 0.0;
if(STEPS == 0.0){
@ -152,6 +161,8 @@ 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(linear_gamma > 0.5) FragColor = pow(final, vec4(1.0 / 2.2));
}
#endif