Difference between revisions of "Choose the right DXTC compression algorithm"

Choose the right DXTC compression algorithm (edit)

419 bytes added , 15:07, 3 December 2006

Anonymous user

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 =Glow map= (identified by the _g.dds suffix)
-'''RGB Channels''': they are used in desaturated/greyscale version for storing glowing info (white: glowing, black: dull)
+'''RGB Channels''': Stores the ''minimum'' amount of lighting used on the texture.  White = full lighting, Black = no lighting (the same as if there were no glow map), #2080FF = a blue light, etc.  Note that regular light brighter than the glow map will override it, so if you put a dull red glowmap on a white texture, it will appear red in the dark but normal white under good lighting conditions.  Also note that it is the minimum amount of light, so a green glowmap on a texture which has nothing in the green channel will appear black.
 '''Alpha Channel''': from my knowledge, is never used, so I recommend using DXT1 in all cases.