5

Alternate Phase: When this checkbox is selected, the motion of each control point is
offset by a phase of 180 degrees from its neighboring control point.
Oscillate Around: This pop-up menu allows you to define whether the oscillation for
each vertex is generated from a point or a perpendicular line.
• Point Origin: Each vertex’s oscillation is generated from a point. You can change the
location of the point using the onscreen controls (dragging the small blue circle at the
center of the shape) or using the X and Y Origin parameters in the Inspector.
• Line: Each vertex’s oscillation is generated from a line. You can change the location of
the line using the onscreen controls (dragging the ends of the blue dotted line) or
using the using the Start and End coordinates in the Inspector.
HUD Controls
The Oscillate Shape HUD contains the Wave Shape, Phase, Amplitude, Speed, and Alternate
Phase parameters.
Randomize Shape
The Randomize Shape behavior allows you to animate the control points of a shape by
applying a random offset to each point of the shape. This behavior is useful for creating
rapid and varied effects on a shape.
When the Randomize Shape behavior is applied to a shape, all control points of the shape
are affected by default. When the behavior is selected in the Layers list, affected control
points appear blue with white dots in the center of the point on the blue shape behavior
spline. To disable control points, click the control points. A disabled point is a darker blue
with a dark dot in the center of the point.
The darker blue control
point is disabled and
is not affected by the
behavior.
The lighter blue control
point with the white dot
is enabled and is affected
by the behavior.
1179Chapter 20 Using Shapes, Masks, and Paint Strokes