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DS development > Additive blending in 3D.

#105248 - Dark Knight ez - Fri Oct 06, 2006 11:06 pm

Hey all.

Does the DS support additive blending with its 3D hardware?
If so, how can I use it? Does it support only additive blending between textures, or can regular coloured quads also be used?

Greets.

#105250 - sajiimori - Sat Oct 07, 2006 12:13 am

No. Easy answer. ;)

Of course, you can emulate anything in software... eventually.

#105259 - tepples - Sat Oct 07, 2006 2:37 am

Does the DS 3D support full alpha transparency or just on/off transparency? I know what Dark Knight ez is trying to do: some little glowing dustballs on a track.
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#105284 - Lick - Sat Oct 07, 2006 10:30 am

http://www.bottledlight.com/ds/index.php/Video/RasterizingEngine (See texture formats)

Seems like there is a mode with 3 alphabits (8 levels of transparency) and one with 5 (32 levels). I suppose that you could even combine texture transparency with polygontransparency to get more levels. Not sure though.
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