Small tool for fast editing Lightness and keep colours untouched in LAB colourspace.
LightnessGrade
Updated: 2 March 2020
Author: dimetilamin
Compatible Nuke versions: 10.5 or later
Compatibility:
Somtimes it might be helpful to quickly change lightness and keep colour - for this purposes I made this simple and fast tool.
Also added functionality for editing some areas, usually I use it for shadows. You can change the offse tand saturation of selected area based on Keyer_CB selection method (choose master curve to select and move knots like on screenshot below)
Some examples of usage: