A gizmo for creating a direction specific 2D rim light that wraps realistically around your plate detail based of Andrea Geremia's edge rim light tool.
GF_RimLight
Updated: 5 January 2024
Author: Viide
Compatible Nuke versions: 11.0 or later
Compatibility: Linux, Mac, Windows
The gizmo works by using a convolution matrix to essentially do an angle specific edge detect. If wanted a ST-map based distortion can be applied that wraps the rim light more realistically around the plate detail.
It works best when you have a hard roto for the object that you want to apply the rim to and in general works well with clothing or high contrast plates.
Here's a link to the blog post for it where you can find a short overview video:
https://www.guyfrutiger.com/toolbench/matrix-rimlight
Gizmo UI:
Some examples of how it can be used (white panel is the alpha out of the RimLight tool):
