[SDL] Blit effects

Bill Kendrick nbs at sonic.net
Mon Mar 17 15:58:51 PDT 2008


On Mon, Mar 17, 2008 at 12:47:17PM -0700, Mason Wheeler wrote:
> When blitting an image, how do you do special effects?  For example, it's easy to do a direct copy, an alpha-blended copy or a color-keyed copy, but what if I wanted to use effects such as Add, Multiply, Maximum, etc?  How do I set those up?

Right now, you do them yourself on a per-pixel-basis, I believe.

-- 
-bill!
bill at newbreedsoftware.com
http://www.newbreedsoftware.com/


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