yes, that's what I'm trying to achieve, it just misses the pretty fading we can obtain with biquad processing, but that is exactly that,
thanks ++++ Patrice Colet - 06 32 66 03 57
----- "Jack" jack@rybn.org a écrit :
Here a patch using GLSL and the frame buffer for feedback. Hope it helps. ++
Jack
Le lundi 07 juin 2010 à 17:00 +0200, patko a écrit :
oupse I've mixed [pix_threshold] and [pix_alpha]
it's about pix_alpha rather but I think you've understood,
indeed I'd like the particle reveals background image
the idea is about snaping the particle system over a black rectangle
(the mask)
and then turning the white pixels to alpha for revelating the
(purple) rectangle
that should be rendered first
i've attached again the same patch but with [gemhead 5] instead of
[gemhead 0]
+++
----- "Jack" jack@rybn.org a écrit :
order rendering' because [gemwin 0] <=> [gemwin 50]. If I understand, you want to see a background image when the particles are drawn ? ++
Jack