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Alfablending with direct draw

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Hi! I just want to know if there are any support for alfablending in direct draw (not D3D). I know how to do it "manually" but it''s so terrible slow to lock/unlock surfaces. I''m using VC++ DirectDraw7 Tnx // Javelin -- Why do something today when you can do it tomorrow... --

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its alph a blending yes there is, but i'm not sure how to do it. i don't really know dd7, but there has to be alphablending in it.

[edited by - billybob on July 30, 2002 6:53:10 AM]

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Guest Anonymous Poster
There is no alphablending support in DirectDraw7. But, you can write it yourself still and get good results. See this: http://www.gamedev.net/reference/programming/features/mmxblend/default.asp

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Tnx...
Then it really is as I tought... *grrrr*

// Javelin
-- Why do something today when you can do it tomorrow... --

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You can use alpha blending in D3D if you use DrawPrimitive with transformed and light vertices in the call.
This will give you more or less the same functionality as DirectDraw (ie 2D blits) with scaling and rotations etc.

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