(Yeah, okay.. so I keep forgetting how small text is.. oops. Didn't want to rerecord so i just scaled up a couple bits. My bad :|)
Cryptomattes are pretty much standard things now, but I recall when I first touched them it was a "wait what black sorcery is this" kind of moment?
0:00 - Regular ID mattes
2:10 - Cryptomattes
Sample images - see https://github.com/Psyop/Cryptomatte and that Cryptomatte node is stock Nuke these days (since what, Nuke 13?)
Bonus Bunneh - https://en.wikipedia.org/wiki/Stanfor...