mirror of
https://github.com/ZDoom/gzdoom.git
synced 2024-11-17 09:51:26 +00:00
21 lines
404 B
GLSL
21 lines
404 B
GLSL
|
|
in vec2 TexCoord;
|
|
out vec4 FragColor;
|
|
|
|
uniform sampler2D InputTexture;
|
|
uniform float InvGamma;
|
|
uniform float Contrast;
|
|
uniform float Brightness;
|
|
|
|
vec4 ApplyGamma(vec4 c)
|
|
{
|
|
vec3 val = c.rgb * Contrast - (Contrast - 1.0) * 0.5;
|
|
val += Brightness * 0.5;
|
|
val = pow(max(val, vec3(0.0)), vec3(InvGamma));
|
|
return vec4(val, c.a);
|
|
}
|
|
|
|
void main()
|
|
{
|
|
FragColor = ApplyGamma(texture(InputTexture, TexCoord));
|
|
}
|