Magic key is based on the IBK philosophy but without any alpha. This is like an additive keyer. You can add the desired zones through a merge 'Copy' node. I added a checkbox to get out the Multiply layer as a Rough Alpha channel ^^
MagicKey
Updated: 29 November 2021
Author: herbert_muda
Compatible Nuke versions: 12.0 or later
Compatibility: Linux, Mac, Windows