[PD] mask videos

Andres Cabrera andres at geminiflux.com
Fri Dec 17 13:43:26 CET 2004

What I've found when exporting from Final Cut Pro, is that the only 
codec that keeps the alpha channel is "Animation" when using Millions of 
colors+. Anyone found another one?
If you want to mask according to a color of the image (like chroma 
keying), you can use either [pix_coloralpha] or [pix_ chroma_key], 
depending on what you need. Don't forget to put [alpha] somewhere in the 
chain to enable alpha blending, and be careful of the rendering order 
(gemhead number), because objects drawn earlier, even if in front will 
not blend correctly.


Andrei R. Thomaz wrote:

> is it possible to mask videos with GEM ? I tried pix_mask, but it
> doesn't work with videos (at least, with .MOV videos in linux).
> bye,
> andrei

More information about the Pd-list mailing list