Matchbox for high pass and low pass

Flame Flame Questions
1

I’m pretty sure @lewis made a shader that generates high pass and low pass, but I can never remember the name?

2

Lumps?

6 Likes
3

Ah, that’s why I never remember the name. Thanks.

4

Also, crock-seperate (?) does this but is 2 passes only whereas Lewis’ has a mid output.