The big classic Exponential Glow, with iterations dynamic control, quality setting, squeeze value, crop and Mask input. Comp tree optimization.
Exponential Glow iterations
Updated: 3 September 2020
Author: Olivier_Blanchet
Compatible Nuke versions: 10.0 or later
Compatibility: Linux, Mac, Windows
1.2 minor fix
1.1 faster, overscan added
Exponential Glow, no need further explanations, right?
This group, based on a well known Gizmo offers you few more options:
Iteration dynamic control, squeeze value, blur quality, crop and Mask input.
Example of use:

UI:
