I have some green screen footage and the key dropped out a blue green shirt. I know, shoulda woulda coulda shot it on blue screen. Anyway, so now I am rotoscoping out the shirt. I also need to key out the background,the part that falls off the green screen,using a mask around the subject, so I have a rotoscope within a mask. I need to use that mask to drop out the background, but it won't work. The rotoscope either drops out the rest of the frame or,if I invert, just the shirt. How do I get my rotoscope to keep the shirt from keying out, and make my scene mask key out the background? Good news is I have time - no tight deadline, imagine that!