gzdoom/wadsrc/static/shaders/scene/frag_fogboundary.glsl

25 lines
415 B
GLSL

void main()
{
float fogdist;
float fogfactor;
//
// calculate fog factor
//
if (uFogEnabled == -1)
{
fogdist = pixelpos.w;
}
else
{
fogdist = max(16.0, distance(pixelpos.xyz, uCameraPos.xyz));
}
fogfactor = exp2 (uFogDensity * fogdist);
FragColor = vec4(uFogColor.rgb, 1.0 - fogfactor);
#ifdef GBUFFER_PASS
FragFog = vec4(0.0, 0.0, 0.0, 1.0);
FragNormal = vec4(0.5, 0.5, 0.5, 1.0);
#endif
}