The amazing thing about rotoscoping is that it's very malleable. Unlike green screen, where the computer subtracts out the background, rotoscoping is an additive technology in that you don't take anything away from the footage - you add layers on top of it.

The amazing thing about rotoscoping is that it's very malleable. Unlike green screen, where the computer subtracts out the background, rotoscoping is an additive technology in that you don't take anything away from the footage - you add layers on top of it.