Tool for overscanning a distorsion/undistorsion stmap beyond the format with a decent approximation. Based on Marty Blumens Stmap_extension.
STMap_Overscan
First submitted: 20 August 2026
Updated: 31 August 2026
Author: Calle Granström
Website: https://github.com/drDeckard/nuketools
Compatible Nuke versions: 14.0 or later
Compatibility: Source
Four different algorithms for extending a stmap beyond the format. Linear, Quadratic, Least Squares Regression and most often the best; Brown-Conrady.
It samples the stmap from the edge towards the center of lens (format or sampled from stmap) to approximate the extended distorsion.
Also an option for branching out the samples like a fan that sometimes can help. The gizmo defaults to removing repeated values in the edges so we extend from the correct edge of the stmap.
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