28 Nov
2009
28 Nov
'09
5:53 p.m.
Hi,
Now, I don't know if this is possible at all.
Suppose I have a [rectangle] (or whatever primitive indeed) with a texture, and something behind the rectangle. Is it possible to have the rectangle "blend" with the background with some blending mode (such as add, multiply, etc)? (without having to render all the rest of the scene except the rectangle into a texture via gemframebuffer, and then blending the two textures with pix_add and friends)???
Isn't it a matter of shaders? I guess it could be achieved using openGL functions... but is there a "simple" way?
Thanks m.
--
Matteo Sisti Sette
matteosistisette@gmail.com
http://www.matteosistisette.com