Plasma node

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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.