Using Mocha I've rotoscoped my actor out of some footage in order to composite him on top of something else.
After pasting the shape data to his layer in AE, I'm happy with the roto but now I need to adjust the position and scale. Changing the position parameter in layer properties works fine, but when I adjust scale, the rotoshape starts to go haywire. As the layer size increases, the mask around the rotoshape gets left behind, despite being on the same layer. Then if I scrub forward in time, the position of the roto mask has gone back to its original place too. There are no keyframes on it, the only thing I have applied is the Mocha shape data. Am I doing something wrong, or is this a glitch?
It works as it should - all mocha data is treated as absolute based on the size of the mocha project and then relative to the AE comp, not the layer. You cannot simply scale later. Pre-compose, then scale or insert the mocha shapes as masks...