Hey List,
I'm trying to figure out a bit about the current rendering pipeline
so that I can set up and run a couple of different post process effects
at a time. My goal is to have each effect read from an unaltered
framebuffer so that the successive effects won't interfere with each
other, but rather will be able to be blended in a more specific way. A
good example of the kind of situation that I need this for would be the
edge highlighting and blur filters. I don't want the edge highlighter
to read from the results of the blur filter because then the edges won't
be quite true, but I also don't want the blur filter to read from the
results of the highlighter, because then the highlights will be blurry
as well.
I ran across a couple of functions that might be useful in doing
something like this, such as materials->CopyRenderTargetToTexture, and
I could always just create a custom render target and then copy that to
the frame buffer when the composition is complete, but I can't shake the
suspicion that there is some kind of support for this kind of thing
already that I'm just missing.
Is there, or should I just roll my own?
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