Ok, thanks for all the tips so far, all seems to be going to plan.

I'm having a problem figuring out the resolutions of my video components and the gem_win size, something which is apparently important to make chroma_key work well.

When I create a new GEM Window, PD reports it's created a 500x500 window. But even if I set the pix_snap2tex dimensions to match, the screen grab from my i-sight comes out at different proportions. I've got both a pix_snap2tex feed and an unaffected pix_video feed rendering to the same 4 3 rectangle, but the only the pix_snap2tex is appearing wrongly.

On 16/4/06 21:58, "patco" megalegoland@yahoo.fr wrote:

From: Alexandre Quessy "This objects outputs a snapshot of the Gem window on every bang it receives. Maybe you dont want to bang it on every frame."

Very nice trick, I've just tested [pix_snap2tex] with my linux box, it works fine..

But, it doesn't with the windows version, the snapped texture is not correctly displayed on the square in the example, maybe it will be fixed in the next official windows version?

Patco.

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