Moving images with videoplane before Chroma-keying through slab. Transparency

    Mar 18 2015 | 3:23 pm
    Hi all!
    I'm working on a patch to blend together three layers of video with some chroma keying, scaling, moving around working together. It would be so very great if I could get this one thing to work;
    How do I move a .mov around with xy-coordinates and scaling, before sending it through a slab object that performs some chroma keying to get transparency? The moving around bit I can do through, but when I try to route that video into the object, I loose the transparency. It seems like the object only accepts old-school matrix info, rather than OpenGL?
    Below you'll find a patch where I've isolated the problem. I would be very grateful for any input ;-)
    / Nils