I'm using Vegas 7 HD and I've been trying to figure out how to do the effect that leaves the whole video B&W except that one thing. I know how to do this with still images and layering and alpha channels and all, but how can I do this with moving video? Or is it something that would have to be filmed with green screen or something? I just wanna do it to existing footage if possible.
Can someone help me out here ?
Thanks a bundle