WarpDrops Warps the source clip by multiple patterns of concentric waves emanating from multiple center locations. Each area in the Centers input clip brighter than the value of Threshold Cntrs, generates an independent pattern of concentric waves, and the total brightness of each area scales the warping magnitude of those waves. If the Centers image is complex, the number and locations of resulting centers can be fairly sensitive to the threshold value. Try using just solid black with a few white dots for the Centers input. If you only need a single set of waves, you can use the WarpPuddle effect instead. Inputs: Source:  The input clip to be warped. Centers:  Determines the centers of the wave patterns. Each area in this clip brighter than the value of Threshold Cntrs, generates an independent pattern of concentric waves. The total brightness of the area (brightness x area) scales the warping magnitude of those waves. This clip is often a painted image of dots of different sizes and brightnesses. If the painted centers move over time, the effect centers will move with them.

Parameters:

Amplitude:   Default: 1,  Range: 0 or greater.
Scales the amount of warping distortion. Increase for more severe distortion.

Frequency:   Default: 10,  Range: 0 or greater.
The frequency of the waves. Increase for more waves, decrease for fewer. This parameter can be adjusted using the Frequency Widget.

Rel Height:   Default: 1,  Range: 0 or greater.
The relative height of the concentric wave pattern.

Rotate Rel H:   Default: 0,  Range: any.
Rotation in degrees of the wave patterns, about each center. This has no effect if the Rel Height parameter is 1.0. This parameter can be adjusted using the Rotate Rel H Widget.

Threshold Cntrs:   Default: 0.6,  Range: 0 or greater.
Areas brighter than this value are used as centers for the waves. A center is generated from the centroid of each set of connected pixels above this value.

Max Centers:   Integer,  Default: 20,  Range: 1 or greater.
The maximum total number of centers to use. This can be used for testing or to avoid overly large numbers of centers.

Inner Radius:   Default: 0,  Range: any.
The distance from the puddle center where the wave distortion is phased in. No waves are generated inside this radius. This parameter can be adjusted using the Inner Radius Widget.

Inner Softness:   Default: 0.1,  Range: 0.01 or greater.
The width of the region at the Inner Radius over which the wave distortion is phased in.

Outer Radius:   Default: 0.25,  Range: 0 or greater.
The distance from the puddle center where the wave distortion is phased out. No waves are generated outside this radius. This parameter can be adjusted using the Outer Radius Widget.

Outer Softness:   Default: 1,  Range: 0.01 or greater.
The width of the region at the Outer Radius over which the wave distortion is phased out.

Z Dist:   Default: 1,  Range: 0 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.

Phase Start:   Default: 0,  Range: any.
The phase shift of the waves.

Phase Speed:   Default: 0,  Range: any.
The speed of the waves. If this is positive the waves automatically travel outwards from the center at this rate.

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.

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.

See Also:

WarpDropsMask WarpDropsComp

WarpPuddle WarpWaves

Sapphire Plug-ins Introduction

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