WarpBubbleComp In the S_WarpsComp Plugin. Warps the source clip by a smooth noise function. This can be used to create heat diffusion or under water types of effects. The Shift Speed parameters cause the noise pattern to automatically translate over time. Adjust the Amplitude and Frequency parameters to give different types of distortions. Inputs: Front:  The clip to use as foreground. Back:  The clip to use as background. Matte:  Specifies the opacities of the Front clip.

Parameters:

Frequency:   Default: 16,  Range: 0.01 or greater.
The frequency of the noise pattern. Increase for more and smaller bubbles, decrease for fewer and larger bubbles.

Frequency Rel X:   Default: 1,  Range: 0.01 or greater.
The relative horizontal frequency of the bubble pattern. Increase for taller bubbles, decrease for wider ones.

Amplitude:   Default: 0.25,  Range: any.
Scales the amount of warping distortion. Increase for more severe distortion.

Octaves:   Integer,  Default: 1,  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: 0.23,  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.
The translation of the bubble pattern.

Shift Speed:   X & Y,   Default: [0.1 0],  Range: any.
If non-zero, the bubble pattern is automatically animated to shift at this speed. 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.

Z Dist:   Default: 1,  Range: 0.01 or greater.
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. Zooming in slightly can sometimes be used to hide edge artifacts.

Filter:   Check-box,  Default: on.
If enabled, the image is adaptively filtered when it is resampled. This gives a better quality result when parts of the image are warped smaller.

Rotate Warp Dir:   Default: 0,  Range: any.
Rotation angle of the warping directions in counter-clockwise degrees.

Wrap:   X & Y,  Popup menu,  Default: [REFLECT REFLECT].
Determines the method for accessing outside the borders of the source image.

NO:  gives black beyond the borders.

TILE:  repeats a copy of the image.

REFLECT:  repeats a mirrored copy. Edges are often less visible with this method.

Comp Premult:   Check-box,  Default: off,  Shared.
Enable this for a better composite if the Foreground pixel values have been pre-multiplied by the Matte pixel values. This is also known as an 'additive' composite.

See Also:

WarpTransformComp WarpVortexComp WarpPerspectiveComp WarpWavesComp WarpWaves2Comp WarpPuddleComp WarpBubble2Comp WarpFishEyeComp WarpPuffComp WarpShrivelComp WarpPolarComp WarpRepeatComp WarpChromaComp WarpMagnifyComp WarpCornerPinComp

WarpBubble WarpBubbleMask

DissolveBubble WipeBubble

Sapphire Plug-ins Introduction

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