I want to take an animated scene created in Maya, bring it into AE and replace the screen with footage.

I was using the locators method, but noticed that my footage was drifting. I vaguely remember that there's a way to map the footage onto the screen by rendering a matte or something like that from Maya. But I can't remember, and most tutorials don't cover Maya's updates.

It's really a simple thing, but I can't recall the process.

Thanks in advance!