2016-08-03 07:59:29 +00:00
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#version 120
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2011-12-01 21:07:48 +00:00
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//#define fog_FuncTION
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2012-02-14 16:38:18 +00:00
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//varying vec3 PointPos;
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2011-11-27 23:59:33 +00:00
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vec3 fog_Func(vec3 color, int type)
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{
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//if (type == 0){
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const float LOG2 = 1.442695;
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2012-02-14 16:38:18 +00:00
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//float fogCoord =length(PointPos);
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2012-03-15 19:06:45 +00:00
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float fogCoord = gl_ProjectionMatrix[3].z/(gl_FragCoord.z * -2.0 + 1.0 - gl_ProjectionMatrix[2].z);
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2011-11-27 23:59:33 +00:00
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float fogFactor = exp2(-gl_Fog.density * gl_Fog.density * fogCoord * fogCoord * LOG2);
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if(gl_Fog.density == 1.0)
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fogFactor=1.0;
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return mix(gl_Fog.color.rgb, color, fogFactor);
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2016-08-03 07:59:29 +00:00
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}
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