CloudsPerspectiveComp In the S_CloudsComp Plugin. Generates a procedural noise texture transformed onto a 3D plane with perspective, then combines the texture with the background clip. Inputs: Back:  The clip to combine the texture image with. This may be ignored if the Combine option is set to Texture Only, but the output clip will default to the same length as this clip.

Parameters:

Frequency:   Default: 2,  Range: 0.01 or greater.
The spatial frequency of the texture. Increase to zoom out, decrease to zoom in.

Frequency Rel X:   Default: 0.4,  Range: 0.01 or greater.
The relative horizontal frequency of the texture. Increase to stretch it vertically or decrease to stretch it horizontally.

Octaves:   Integer,  Default: 6,  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.

Seed:   Default: 0.234,  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.

Shift Start:   X & Y,   Default: [0 0],  Range: any,  Shared.
Translation offset of the clouds in their initial plane.

Z Dist:   Default: 1,  Range: any.
Scales the 'distance' of the image. Values greater than 1.0 move it farther away and make it smaller. Values less then 1.0 move the image closer and enlarge it.

Latitude:   Default: -35,  Range: any.
Positive latitude tilts the image down and negative tilts it up. Keep latitude in the range of around -35 to 35 degrees to avoid aliasing towards the horizon.

Swing:   Default: 0,  Range: any.
Rotation of the image in degrees in its initial frame.

Roll:   Default: 0,  Range: any.
Tilts the result from side to side, in counter-clockwise degrees.

Tele Lens Width:   Default: 1,  Range: 0.2 or greater.
The amount of lens telescoping. Increase to zoom in with less perspective, decrease for a wider viewing angle with more perspective.

Shift Speed:   X & Y,   Default: [0.5 0],  Range: any,  Shared.
Translation speed of the texture. If non-zero, the result is automatically animated to shift at this rate. The result of animated Speed values may not be intuitive, so for variable speed motion it is usually best to set this to 0 and animate the Shift Start values instead.

Brightness1:   Default: 1,  Range: 0 or greater,  Shared.
Scales the brightness of Color1. Increase for more contrast.

Color1:   Default rgb: [1 1 1],  Shared.
The color of the 'brighter' parts of the texture. The colors of the result are determined by an interpolation between Color0 and Color1.

Color0:   Default rgb: [0 0 0],  Shared.
The color of the 'darker' parts of the texture.

Offset0:   Default: 0,  Range: any,  Shared.
Adds this value to color0. Decrease to a negative value for more contrast.

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

Clouds Only:  gives only the clouds texture 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.

Scale Back:   Default: 1,  Range: any,  Shared.
The background brightness is scaled by this value before being combined with the texture.

See Also:

CloudsComp CloudsVortexComp CloudsMultColorComp CloudsColorSmoothComp CloudsPsykoComp

CloudsPerspective

WarpPerspective Sapphire Plug-ins Introduction

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