Back in 2018 I wrote,
Wanna feel like walking directly into the ocean? Try painstakingly isolating an object in frame after frame of video. Learning how to do this in the 90’s (using stone knives & bear skins, naturally), I just as quickly learned that I never wanted to do it again.
Happily the AE crew has kept improving automated tools, and they’ve just rolled out Roto Brush 2 in beta form. Ian Sansevera shows (below) how it compares & how to use it, and John Columbo provides a nice written overview.
In this After Effects tutorial I will explore and show you how to use Rotobrush 2 (which is insane by the way). Powered by Sensei, Roto Brush 2 will select and track the object, frame by frame, isolating the subject automatically.

Ahh, thanks J! Great to see you posting about this. It’s getting amazing feedback! — Michelle