Notch Notch Manual 0.9.23
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Barrel Distortion

Barrel Distortion

Simulate distortion of real-world camera lenses in an image.

image

Method #

This node can be used to simulate distortions in real-world camera lenses using k numbers, creating a bulging or pinching effect from the centre of the image. Mainly useful when attempting to correct unwanted distortion in an image or video.

See Wikipedia for more information.

Parameters

These properties control the core behaviours of the node.

ParameterDetails
ActiveEnables or disables the effect. Disabling the effect means it will no longer compute, so disabling a node when not in use can improve performance.
Blend AmountChanges the opacity of the new effect over the original image.
Blend Mode (RGB)Change how the generated effect blends with the parent image RGB.
Blend Mode (Alpha)Change how the generated effect blends with the parent image alpha.
k1First radial distortion coefficient. barrel distortion typically will have a negative term for k1 whereas pincushion distortion will have a positive value.
k2Second radial distortion coefficient.
k3Third radial distortion coefficient.
Distortion Scale XThe distortion scale amount in x.
Distortion Scale YThe distortion scale amount in y.

Toggle which of the RGBA channels are affected by the effect.

Inputs

NameDescriptionTypical Input
ActiveEnables or disables the effect. Disabling the effect means it will no longer compute, so disabling a node when not in use can improve performance.Envelope Modifier