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https://git.code.sf.net/p/quake/quakeforge
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12 lines
334 B
Text
12 lines
334 B
Text
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vec4
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FogBlend (vec4 color, vec4 fog)
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{
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float az = fog.a * 1 / gl_FragCoord.w;
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//float az = fog.a * (4 - gl_FragCoord.w);
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vec4 fog_color = vec4 (fog.rgb, 1.0);
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float fog_factor = exp (-az * az);
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//return vec4 (mix (fog_color.rgb, color.rgb, fog_factor), color.a);
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return mix (fog_color, color, fog_factor);
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}
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