I have a basic After Effects question, but I don't know the right words for it to find what I need.
I have a composition that consists of three side-by-side videos. But, for now, it's just three layers on top of eachother. I created three skewed rectangles (Shapes). I want each of the layers to be shown on top ONLY of one of the shape layers. So, I want footage A to be shown on top of shape A, footage B on shape B, footage C on shape C. There is also some whitespace, between the shapes, so the background video is shown as well.
How would I accomplish this?