Max escribió:
well, you've asked for the simple way....
Ok I just hoped there was a simple way to achieve add and multiply as well. So can I assume ther isn't?
other than that the solution is pretty much outlined in your question already.
Do I have to learn glsl programming?
Would that allow me to do it in a more "direct" way THAN rendering the background into a gemframebuffer and combining textures with pix_add and pix_multiply? Or would it, at the end, be almost equivalent?
(by "direct" I mean technically more direct, not "easier" which is a very subjective concept)
I'll try to formulate my question in a way that makes more sense... By using glsl programming, would I be able to just 'tell the rectangle' how to blend with its background, or would I end up combining textures anyway? (does it make more sense now?)
Thanks m.