Danasa Arsad shows ways to remove a background in After Effects without a green screen.

Maybe you have some footage that wasn’t shot in front of a blue or green screen, but you’d still like to have the subject keyed out of the background. Like other compositors, you have a couple of ways to handle this conundrum with After Effects. 

This new tutorial from ActionVFX hosted by Danasa Arsad shows how you can use luminance and Ae’s Rotobrush to isolate your subject or remove the background.