Method
This node can be used to simulate distortions in real-world camera lenses. It creates a bulging or pinching effect from the centre of the image. See Wikipedia for more information.
| Raw texture |
Processed texture |
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| Example Nodegraph |
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Attributes
| Name |
Description |
| Active |
Turn the effect on or off. Values < 0.1 will turn the effect off, and deferred rendering must be on. |
| 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. |
Affect Channels
Select which of the RGBA colour channels are affected by the effect.
Inputs
| Name |
Description |
Typical Node Input |
| Active |
Turn the effect on or off. Values < 0.1 will turn the effect off, and deferred rendering must be on. |
Envelope Modifier |
Outputs
There are no outputs from this node.
