I’m pretty sure this is very easy and I should know how to do this, but I just can’t remember, nor can I figure out the right search terms to find the answer.
I have two guys standing in front of a green screen. I keyed out the green screen and placed the guys in front of an illustrated background. To make them match the storybook nature of the setting they’re now in, I want to apply a paper texture to just the guys, not the background. I downloaded a stock paper texture and dropped it in the timeline below the video layer, above the background, and tried every layer mode on the video layer. Stencil luma gives the guys the texture I’m looking for (I need to find a better paper sample, but it’s going in the right direction), but it blacks out everywhere else making the background invisible.
What am I missing? How do I apply this paper texture to just the video layer?
Another way to do it without precomposing would be to place your paper texture at the top, use the people layer as a track matte for the paper texture and make sure you turn the paper texture back on. With the new Track Mattes in the latest version of AE, you have a TON more flexibility on where you put layers and the track mattes that affect them. Then you just make the paper layer whatever blending mode you need.
Alternatively, if you have Red Giants Universe, I’d say Texturize or especially Texturize Motion would be amazing for just this sort of thing.