Sorry, I mean a mask, not a matte (are they the same?)
Anyway, this is what I’m trying to do: I have two footages, one on top of the other. I drew a mask shape (a circle) on the footage on top. Now in the footage under, there’s this moving object that I tracked.
The reason for the mask is that I want the footage on top to show only the area inside the circle (mask). Now I want the mask to move in the same direction as the object I tracked on the footage underneath it. Thanks.