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Alpha channel support?

Mar 2, 2009 at 6:05 PM
I'm having trouble getting alpha channels on my textures to work, for example gratings and stuff; they are rendering opaque instead.  The textures I'm using are TGAs with alpha data, and I'm using q3 shaders that should handle them.  Everything else is working great.  Are alpha channels known to work, known not to work, do I need to change some things like the pixel shader I'm using, or something?