ref: 26684157e0d0b5885f33e88c4d31805f48fa5d15
dir: /d_alpha.c/
#include "quakedef.h" float alphafor(int flags) { if(flags & (SURF_TELE|SURF_FENCE)) return 1.0; if(flags & SURF_LAVA) return r_lavaalpha.value; if(flags & SURF_SLIME) return r_slimealpha.value; return r_wateralpha.value; }