Adobe AFTER EFFECTS CS3 PROFESSIONAL User Manual page 295

The amount to offset the selection from that specified by the Start and End properties. To set Offset in the Compo-
Offset
sition panel while you edit the Start or End values, Shift-click the Start or End selector bars with the Selection tool.
Controls how characters are selected between the Start and End of the range. Each option modifies the
Shape
selection by creating transitions between selected characters using the chosen shape. For example, when animating
the y Position values of text characters using Ramp Down, the characters gradually move at an angle from bottom
left to upper right. You can specify Square, Ramp Up, Ramp Down, Triangle, Round, and Smooth.
Original (left) and after selecting the entire word, setting Based On to Characters, animating the y Position value so that the word is at the
bottom of the frame, and setting Shape to Ramp Down (right)
Using different Shape options, you can significantly change the appearance of an animation.
Setting Shape to Triangle
Determines the amount of time the animation takes to transition from one character to another when
Smoothness
you use the Square shape.
Determines the speed of change as selection values change from fully included (high) to
Ease High and Ease Low
fully excluded (low). For example, when Ease High is 100%, the character changes more gradually (eases into the
change) while it is fully to partially selected. When Ease High is -100%, the character changes quickly while it is fully
to partially selected. When Ease Low is 100%, the character changes more gradually (eases into the change) while it
is partially selected to unselected. When Ease Low is -100%, the character changes quickly while it is partially
selected to unselected.
Randomizes the order in which the property is applied to the characters specified by the Range
Randomize Order
selector. (By contrast, when you use the Wiggly selector, the value of the animator property is randomized.)
Calculates the randomized order of a range selector when the Randomize Order option is set to On.
Random Seed
When Random Seed is zero, the seed is based on its animator group. If you want to duplicate an animator group and
retain the same randomized order as in the original animator group, set Random Seed to a value other than zero.
Wiggly selector properties
The Wiggly selector includes the following properties, in addition to properties common with other selectors:
Max Amount and Min Amount
How many variations from the set selection occur per second.
Wiggles/Second
Correlation between variations for each character. At 100%, all characters wiggle by the same amount at
Correlation
the same time, and at 0%, all characters wiggle independently.
Specifies the amount of variation from the selection.
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User Guide