Besides that should got handled in some early "Aums".
Quote:
fog_color = (fog_color == 0); // set fog_color to 0 (no fog) or 1 camera.fog_start = 500; // the fog starts at 500 quants camera.fog_end = 2500; // and ends at 2500 quants
"Make a great game or kill it early" (Bruce Shelley, Ensemble Studios)