Plasma node — Natron 2.5.0 documentation

# Plasma node

This documentation is for version 2.0 of Plasma (net.sf.cimg.CImgPlasma).

## Description

Draw a random plasma texture (using the mid-point algorithm).

Uses the ‘draw_plasma’ function from the CImg library, modified so that noise is reproductible at each render..

CImg is a free, open-source library distributed under the CeCILL-C (close to the GNU LGPL) or CeCILL (compatible with the GNU GPL) licenses. It can be used in commercial applications (see http://cimg.eu).

## Inputs

Input | Description | Optional
--- | --- | ---
Source |  | Yes
Mask |  | Yes

## Controls

Parameter / script name | Type | Default | Function
--- | --- | --- | ---
Alpha / `alpha` | Double | 0.002 | Alpha-parameter, in intensity units (>=0).
Beta / `beta` | Double | 0 | Beta-parameter, in intensity units (>=0).
Scale / `scale` | Integer | 8 | Noise scale, as a power of two (>=0).
Offset / `offset` | Double | 0 | Offset to add to the plasma noise.
Seed / `seed` | Integer | 2000 | Random seed: change this if you want different instances to have different noise.
Static Seed / `staticSeed` | Boolean | On | When enabled, the dither pattern remains the same for every frame producing a constant noise effect.
(Un)premult / `premult` | Boolean | Off | Divide the image by the alpha channel before processing, and re-multiply it afterwards. Use if the input images are premultiplied.
Invert Mask / `maskInvert` | Boolean | Off | When checked, the effect is fully applied where the mask is 0.
Mix / `mix` | Double | 1 | Mix factor between the original and the transformed image.