Smooth as silk here on 10.4.11. There are still a couple of software bugs that I'm anxious for them to fix but for the most part, everything is running a-ok. Rotoscoping is simply adding something that moves. (not to be confused with the actual, old-time rotoscope device itself) The light saber's post-film work is rotoscoping because it's added frame by frame manually. Adding a movie within a movie is also considered rotoscoping. So, animated texture maps fall within that category as well.