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fteqw/engine/shaders/vulkan/defaultgammacb.glsl

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!!samps 1
//this shader is applies gamma/contrast/brightness to the source image, and dumps it out.
#include "sys/defs.h"
layout(location=0) varying vec2 tc;
layout(location=1) varying vec4 vc;
#ifdef VERTEX_SHADER
void main ()
{
tc = v_texcoord;
vc = v_colour;
gl_Position = ftetransform();
}
#endif
#ifdef FRAGMENT_SHADER
void main ()
{
gl_FragColor = pow(texture2D(s_t0, tc) * vc.g, vec4(vc.r)) + vc.b;
}
#endif