I’m learning how to use Mocha Pro to take my plate of a subway car that’s bouncing around, track the car’s movement, and then remove the movement to do compositing. In this case, to mask off the subway car’s windows. I’ve watched Mary’s video on this (Mocha for After Effects: Reverse Motion Tracking with Power Pin - YouTube), but maybe since I am not just painting but also rotoscoping I am having problems. I have attached a screen grab. Please tell me where I went wrong and how to fix this problem.
- The motion tracking went great.
- I applied the motion tracking (inverse) to the plate. It is rock stable. Yay!
- I rotoscoped the windows (purple and pink mask outlines) as they closed- and they look great! As you see, they are in the right place.
- But the black stuff (background) showing through is in the wrong place.