mirror of
https://github.com/ZDoom/gzdoom.git
synced 2024-12-11 13:11:48 +00:00
31 lines
634 B
Text
31 lines
634 B
Text
|
varying vec4 pixelpos;
|
||
|
|
|
||
|
|
//===========================================================================
|
||
|
|
//
|
||
|
|
// Main shader routine
|
||
|
|
//
|
||
|
|
//===========================================================================
|
||
|
|
|
||
|
|
void main()
|
||
|
|
{
|
||
|
|
float fogdist;
|
||
|
|
float fogfactor;
|
||
|
|
|
||
|
|
//
|
||
|
|
// calculate fog factor
|
||
|
|
//
|
||
|
|
#if (DEF_FOG_ENABLED == 1) && (DEF_FOG_RADIAL == 0) && (DEF_FOG_COLOURED == 1) // This was uFogEnabled = -1,, TODO check this
|
||
|
|
{
|
||
|
|
fogdist = pixelpos.w;
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
{
|
||
|
|
fogdist = max(16.0, distance(pixelpos.xyz, uCameraPos.xyz));
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
fogfactor = exp2 (uFogDensity * fogdist);
|
||
|
|
|
||
|
|
gl_FragColor = vec4(uFogColor.rgb, 1.0 - fogfactor);
|
||
|
|
}
|
||
|
|
|