Adobe After Effects CS3 - Manual (Page 424)

AFTER EFFECTS CS3
User Guide
419
Warping a layer
Wave Warp effect
The Wave Warp effect produces the appearance of a wave traveling across an image. You can produce a variety of
different wave shapes, including square, circular, and sine waves. The Wave Warp effect is automatically animated at
a constant speed across the time range (without keyframes or expressions). To vary speeds, you need to set keyframes
or expressions.
This effect works with 8-bpc and 16-bpc color.
Wave Type The shape of the wave.
Wave Height The distance, in pixels, between wave peaks.
Wave Width The size of the wave in pixels.
Direction The direction the wave travels across the image. For example, a value of 225˚ makes the waves travel diago-
nally from upper right to lower left.
Wave Speed The speed (in cycles per second) at which the waves travel. A negative value reverses the wave direction,
and a value of 0 produces no movement. To vary wave speed over time, set this control to 0, and then set keyframes
or expressions for the Phase property.
Pinning Which edges to pin so that the pixels along those edges aren’t displaced.
Phase The point along the waveform at which a wave cycle begins. For example, 0˚ starts the wave at the midpoint
of its downward slope, and 90˚ starts it at the lowest point in the trough.
Antialiasing Sets the amount of anti-aliasing, or edge smoothing, to perform on the image. In many cases, lower
settings produce satisfactory results; a high setting can significantly increase rendering time. Anti-aliasing is
performed only if the layer quality setting is Best.
Generate effects
4-Color Gradient effect
The 4-Color Gradient effect produces a four-color gradient. The gradient is defined by four effect points, the
positions and colors of which can be animated using the Positions & Colors controls. The gradient is actually
composed of four solid-color circles blended together, each with an effect point as its center.