Derive Node Reference
Distortion Node
Description
The Distortion node distorts a source texture based on a destination texture. There are many different approaches to doing that, each yielding different results and distortion effects. In case of this node, the information based on which the distortion is being performed is obtained as follows:
1. The destination texture is interpreted as a grayscale height map and thus should be exactly that.
2. The slopes of the heightmap are calculated using a sobel operation.
3. The direction of the slopes determines the direction of the distortion.
4. The steepness of the slopes determines the strength of the distortion for that pixel.
Sample Tree
Properties
| Property Name | Property Type | Description |
|---|---|---|
|
Strength |
Float |
Determines the strength of the distortion operation, without interfering with the extraction of the distortion data from the destination texture. The strength value merely acts as a factor for the distortion strength given by the destination texture. |
Inputs
| Input Name | Allowed Data Types | Description |
|---|---|---|
|
Source |
Float, RGBA |
Input that takes the texture to be distorted. |
|
Destination |
Float, RGBA (automatically converted to grayscale, becoming float data) |
Input that takes the texture containing the data for distortion direction and strength. |
Outputs
| Output Name | Data Type | Description |
|---|---|---|
|
Output |
= Source Data Type |
Outputs the source texture with a distortion filter applied to it, whereby the distortion follows the properties specified by the destination texture and the distortion strength. |
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