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Nodes · Transform

LensDistort

Transformv2coreNeeds full input

Overview

Applies or removes lens distortion. Undistort, comp straight, redistort — the matchmove round trip.

How to

How-to

Set strength (k1) and k2, or take them from a CameraTracker's solve; center and squeeze for anamorphic.
direction = undistort before compositing CG, redistort after — the matchmove round trip.

Inputs

Input	What it takes
in	the image this node works on

Outputs

Output	Type
out	Image

Parameters

Parameter	Type	Default	What it does
strength	Float	0.1	Radial distortion k1 (r²): positive barrels, negative pincushions.
k2	Float	0.0	Second radial term (r⁴) for the corners.
center	Float2	[0.5, 0.5]	The lens centre, normalised 0–1 across the frame.
p1	Float	0.0	Tangential (decentering) terms, Brown–Conrady.
p2	Float	0.0	Tangential (decentering) terms, Brown–Conrady.
squeeze	Float	1.0	Anamorphic squeeze: the distortion acts in the de-squeezed frame.
direction	Choice	undistort	undistort straightens a shot plate; distort re-applies the lens to CG. `undistortdistort`
disabled	Bool	false	Bypass: the node passes its first input through untouched (D in the graph). The knobs keep their values for when it comes back.
label	Text		A note shown under the node in the graph — what this node is FOR. Never affects the render or the cache.
hide_input	Bool	false	Draw the node without its input wire — a tidy graph for a node whose source is obvious (a Dot, a viewer tap).