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https://github.com/ZDoom/gzdoom-gles.git
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eb9d2d9917
- reactivate alpha testing per fixed function pipeline - use the 'modern' way to define clip planes (GL_CLIP_DISTANCE). This is far more portable than the old glClipPlane method and a lot more robust than checking this in the fragment shader.
30 lines
554 B
GLSL
30 lines
554 B
GLSL
in vec4 pixelpos;
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in vec2 glowdist;
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out vec4 FragColor;
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//===========================================================================
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//
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// Main shader routine
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//
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//===========================================================================
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void main()
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{
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float fogdist;
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float fogfactor;
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//
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// calculate fog factor
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//
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if (uFogEnabled == -1)
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{
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fogdist = pixelpos.w;
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}
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else
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{
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fogdist = max(16.0, distance(pixelpos.xyz, uCameraPos.xyz));
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}
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fogfactor = exp2 (uFogDensity * fogdist);
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FragColor = vec4(uFogColor.rgb, 1.0 - fogfactor);
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}
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