Barrel Distortion
Simulate distortion of real-world camera lenses in an image.
Barrel Distortion
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.
Parameter Details Active Enables 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 Amount Changes 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.
k1 First radial distortion coefficient. barrel distortion typically will have a negative term for k1 whereas pincushion distortion will have a positive value.
k2 Second radial distortion coefficient.
k3 Third radial distortion coefficient.
Distortion Scale X The distortion scale amount in x.
Distortion Scale Y The distortion scale amount in y.
Toggle which of the RGBA channels are affected by the effect.
Inputs
These properties control the core behaviours of the node.
| Parameter | Details |
|---|---|
| Active | Enables 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 Amount | Changes 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. |
| k1 | First radial distortion coefficient. barrel distortion typically will have a negative term for k1 whereas pincushion distortion will have a positive value. |
| k2 | Second radial distortion coefficient. |
| k3 | Third radial distortion coefficient. |
| Distortion Scale X | The distortion scale amount in x. |
| Distortion Scale Y | The distortion scale amount in y. |
Toggle which of the RGBA channels are affected by the effect.
| Name | Description | Typical Input |
|---|---|---|
| Active | Enables 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 |