Adobe AFTER EFFECTS 7.0 - About the Expression Selector; Wiggly Selector Properties

ADOBE AFTER EFFECTS 7.0
User Guide
302
Wiggly selector properties
The Wiggly selector includes the following properties:
Mode Specifies how each selector combines with the selectors above it, similar to how multiple masks combine
when you apply a mask mode. For example, if you want to wiggle only a specific word, use a Range selector on that
word and then add a Wiggly selector and set it to Intersect mode.
Max Amount and Min Amount Specifies the amount of variation from the selection.
Based On Select Characters, Characters Excluding Spaces, Words, or Lines.
Wiggles/Second Specifies how many variations from the set selection occur per second.
Correlation Correlation between variations for each character. At 100%, all characters wiggle by the same amount at
the same time, and at 0%, all characters wiggle independently.
Temporal and Spatial Phase (revolutions + degrees) The variation of wiggle, based on the phase of your animation
in time (temporal) or per character (spatial).
Lock Dimensions Scales the wiggled selection’s dimensions by the same value. This is useful when wiggling the Scale
property.
Random Seed Changes the starting time for the animation by a specified value. When the seed is left at zero, a
default value is derived based on the layer index and stream path.
See also
“About mask modes” on page 264
About the Expression selector
The Expression selector lets you dynamically specify how much you want characters to be affected by an animator
property through the use of expressions. You can add one or more Expression selectors to an animator group, and
that animator group can contain one or more properties.
The Expression selector includes the following options:
Based On Specifies whether to base the selection on characters, including spaces; on characters, excluding spaces;
on words; or on lines.
Amount Specifies how much you want the range of characters to be affected by animator properties. At 0%, the
animator properties do not affect the characters. At 50%, half of each property value affects the characters. You can
use expressions to dynamically set this option.
Inadditiontotheexpressionelementsyouuseelsewhere,youcanusethefollowingattributestoanimateselections
in any number of interesting ways:
textIndex Returns the index of the character, word, or line.
textTotal Returns the total number of characters, words, or lines.
selectorValue Returns the value of the previous selector. Use selectorValue for three-dimensional animator
properties like RGB, or for two-dimensional animator properties like scale and position.
Note: The attributes textIndex, textTotal, and selectorValue can be used only with the Expression selector. Using them
elsewhere results in a syntax error.