mirror of
https://github.com/Ttanasart-pt/Pixel-Composer.git
synced 2024-11-14 06:23:55 +01:00
29 lines
653 B
GLSL
29 lines
653 B
GLSL
//
|
|
// Simple passthrough fragment shader
|
|
//
|
|
varying vec2 v_vTexcoord;
|
|
varying vec4 v_vColour;
|
|
|
|
uniform int colors;
|
|
uniform int alpha;
|
|
|
|
uniform vec2 gamma;
|
|
uniform int gammaUseSurf;
|
|
uniform sampler2D gammaSurf;
|
|
|
|
void main() {
|
|
float gam = gamma.x;
|
|
if(gammaUseSurf == 1) {
|
|
vec4 _vMap = texture2D( gammaSurf, v_vTexcoord );
|
|
gam = mix(gamma.x, gamma.y, (_vMap.r + _vMap.g + _vMap.b) / 3.);
|
|
}
|
|
|
|
vec4 _col = texture2D( gm_BaseTexture, v_vTexcoord );
|
|
vec4 c = _col;
|
|
c = floor(pow(c, vec4(gam)) * float(colors));
|
|
c = pow(c / float(colors), vec4(1.0 / gam));
|
|
|
|
if(alpha == 1) gl_FragColor = c;
|
|
else gl_FragColor = vec4(c.rgb, _col.a);
|
|
}
|