S_TexturePlasma Creates an abstract texture resembling an electrical plasma effect. The Phase Speed parameter causes the pattern to automatically undulate over time. In the Sapphire Render effects submenu. Inputs: Background:  Optional.   The clip to combine the texture image with. This may be ignored if the Combine option is set to Texture Only.

Parameters:

Noise Frequency:   Default: 1.2,  Range: 0.01 or greater.
The spatial frequency of the initial noise texture. Increase to zoom out, decrease to zoom in.

Noise Freq Rel X:   Default: 1,  Range: 0.01 or greater.
The relative horizontal frequency of the initial noise texture. Increase to stretch it vertically or decrease to stretch it horizontally.

Noise Octaves:   Integer,  Default: 4,  Range: 1 to 10.
The number of summed layers of noise. Each octave is twice the frequency and half the amplitude of the previous. A single octave gives a smooth texture. Adding octaves makes the result approach a fractal (1/f) noise texture.

Noise Seed:   Default: 0.12,  Range: 0 or greater.
Used to initialize the random number generator. The actual seed value is not significant, but different seeds give different results and the same value should give a repeatable result.

Add Grad:   X & Y,   Default: [0.1 0],  Range: any.
Determines the amplitude and direction of a gradient which orients the plasma lines. Increasing X makes the lines more vertical, and increasing Y makes them horizontal.

Layers:   Default: 4.5,  Range: 0 or greater.
The number of layers of plasma lines. Increase for a more striped effect.

Threshold:   Default: 0.5,  Range: 0 or greater.
Determines the thickness of the plasma lines. Increase for thinner lines, decrease for thicker and brighter ones.

Shift:   X & Y,   Default: [0 0],  Range: any.
Translation offset of the texture. Since the texture is procedurally generated it can be shifted with no repeating units or seams occurring. This parameter can be adjusted using the Shift Widget.

Phase Start:   Default: 0,  Range: any.
Phase offset of the plasma lines.

Phase Speed:   Default: 1,  Range: any.
Phase speed of the plasma lines. If non-zero, the lines are automatically animated to undulate at this rate.

Brightness:   Default: 1,  Range: 0 or greater.
Scales the brightness of the result.

Color:   Default rgb: [1 1 1].
Scales the color of the result. For example, if it is yellow [1 1 0], the blue of the result will be 0.

Glow Brightness:   Default: 3,  Range: 0 or greater.
Scales the brightness of the glow applied to the plasma texture.

Glow Color:   Default rgb: [0.6 0.8 1].
Scales the color of the glow applied to the plasma texture.

Glow Width:   Default: 0.25,  Range: 0 or greater.
The width of the glow applied to the plasma texture.

Glow Width Red:   Default: 0.6,  Range: 0 or greater.
The relative red width of the glow.

Glow Width Grn:   Default: 1.2,  Range: 0 or greater.
The relative green width of the glow.

Glow Width Blue:   Default: 1.8,  Range: 0 or greater.
The relative blue width of the glow.

Bg Brightness:   Default: 1,  Range: 0 or greater.
The background brightness is scaled by this value before being combined with the texture.

Combine:   Popup menu,  Default: Screen.
Determines how the texture is combined with the Background.

Texture Only:  gives only the texture image with no Background.

Mult:  the texture is multiplied by the Background.

Add:  the texture is added to the Background.

Screen:  the texture is blended with the Background using a screen operation.

Difference:  the result is the difference between the texture and Background.

Overlay:  the texture is combined with the Background using an overlay function.

Show Shift: Check-box, Default: on.
Turns on or off the screen user interface for adjusting the Shift parameter.

See Also:

TextureFolded TextureWeave TextureNoiseEmboss TextureNoisePaint TextureSpots TextureCells TextureChromaSpiral TextureMoire TextureTiles TextureNeurons TextureLoops TextureFlux

Clouds Glow

Sapphire Plug-ins Introduction

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