Posted 29 June 2001 - 08:11 AM
Hey there all, heres a quick question for ya: GL_ALPHA_TEST supported in hardware, or is it strictly a software test? My hardware is a TNT2 Ultra, and whenever I enable Alpha testing, it cuts my framerate down to anywhere between 4-20 fps, depending on how much of the alpha tested poly I can see. Also, when Multitexture is enabled, is the alpha test performed before or after the texture units in the pipeline? I''m using multitexture to combine some alpha values, and I want to test the resulting alpha So far, it doesnt seem to work, and it slows me down incredibly. Any help would be greatly appreciated.