Plasma node


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


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


Input Description Optional
Source   Yes
Mask   Yes


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.