DXT1 RGB has no alpha channel and so everything is 100% visible.
DXT1 ARGB is 1 bit alpha, meaning stuff can either be 100% transparent or not transparent.
DXT3 has explicit alpha and DXT5 has interpolated alpha. I don't know the difference between these, but both save the alpha channel (basically) on a per pixel basis.
I cannot figure out how everyone deals with alpha being part of the image, and how you can control how transparent things are without an alpha channel.
Quib
Last edited by Quib : 02-05-2005 at 01:38 PM.
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