Adobe AFTER EFFECTS CS3 PROFESSIONAL User Manual page 579

v = wiggle(5, 10);
[v[0], v[0]]
This example, on a two-dimensional property, wiggles only along the y axis:
freq = 3;
amp = 50;
w = wiggle(freq,amp);
[value[0],w[1]];
temporalWiggle(freq, amp, octaves=1, amp_mult=.5, t=time)
Argument type: freq, amp, octaves, amp_mult, and t are Numbers.
Samples the property at a wiggled time. The freq value is in wiggles per second, amp is in units of the property to
which it is applied, octaves is the number of octaves of noise to add together, amp_mult is the amount that amp is
multiplied by for each octave, and t is the base start time. For this function to be meaningful, the property it samples
must be animated, because the function alters only the time of sampling, not the value. Example:
Wiggle(5, .2)
smooth(width=.2, samples=5, t=time)
Argument type: width, samples, and t are Numbers.
Smooths the property's values over time, converting large, brief deviations in the value to smaller, more evenly
distributed deviations. This is accomplished by applying a box filter to the value of the property at the specified time.
The width value is the range of time (in seconds) over which the filter is averaged. The samples value is the number
of discrete samples evenly spaced over time; use a larger value for greater smoothness (but decreased performance).
Generally, you'll want samples to be an odd number so that the value at the current time is included in the average.
Example:
position.smooth(.1, 5)
loopIn(type="cycle", numKeyframes=0)
Loops a segment of time that is measured from the first keyframe on the layer forward toward the layer's Out point.
The loop plays from the layer's In point. The numKeyframes value determines what segment is looped: The segment
looped is the portion of the layer from the first keyframe to the numKeyframes+1 keyframe. For example,
loops the segment bounded by the first and fourth keyframes. The default value of 0 means
loopIn("cycle", 3)
that all keyframes will loop.
You can use keyframe-looping methods to repeat a series of keyframes. You can use these methods on any property
except a marker or Source Text property. Keyframes or duration values that are too large are clipped to the maximum
allowable value. Values that are too small result in a constant loop.
Loop type Result
cycle (default) Repeats the specified segment.
Repeats the specified segment, alternating between forward and backward.
pingpong
Repeats the specified segment, but offsets each cycle by the difference in the value of the
offset
property at the start and end of the segment, multiplied by the number of times the segment
has looped.
continue Does not repeat the specified segment, but continues to animate a property based on the
velocity at the first or last keyframe. For example, if the last keyframe of a layer's Scale property
is 100%, the layer continues to scale from 100% to the Out point, instead of looping directly
back to the Out point. This type does not accept a keyframes or duration argument.
loopOut(type="cycle", numKeyframes=0)
Return type: Number or Array.
Return type: Number or Array.
Return type: Number or Array.
Return type: Number or Array.
AFTER EFFECTS CS3 573
User Guide
scale.temporal-