STMap_Overscan

Tool for overscanning a distorsion/undistorsion stmap beyond the format with a decent approximation using least squares regression. Based on Marty Blumens Stmap_extension.

First submitted: 20 August 2026

Author: Calle Granström

Website: https://github.com/drDeckard/nuketools

Compatible Nuke versions: 14.0 or later

Compatibility: Source

Three different algorithms for extending a stmap beyond the format. Linear, Quadratic and most often the best; Least Squares Regression.

It samples the stmap from the edge towards the center of frame 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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