5.5

828Motion User Guide
• B-Spline: Control points are all B-Spline points, with different degrees of curvature.
B-Spline control points lie inside, outside, or on the edge of the shape, and are
connected by the B-Spline frame.
• Closed: A checkbox (available when a complex shape with control points is selected)
that, when selected, connects the first and last points of an open shape. If you select
a closed shape in the canvas, this checkbox is selected. Deselecting this checkbox
disconnects the first and last points, converting the object into an open shape.
• Convert To Points: A button (available when a simple shape is selected) that, when
clicked, converts a simple shape to a complex shape with editable control points. See
Convert a shape or mask to control points in Motion.
Control Points controls
When a complex shape with control points is selected, this list becomes available,
displaying the X and Y position parameters for the shape’s control points. The Control
Points list also contains a single Animation menu (the down arrow that appears when you
move the pointer over the right side of the Control Points heading row) that affects all
the control points, letting you add keyframes, reset the shape’s animation, display the
animation curve in the Keyframe Editor, and so on. For more information on using the
Animation menu, see Animation menu controls in Motion.
Shape behaviors
Intro to Shape behaviors in Motion
Although you can animate shapes in your project by applying standard behaviors, a special
category of behaviors is designed for use with shapes and their parameters.
There are nine Shape behaviors:
• Apply Pen Pressure behavior in Motion maps stylus pressure to width, opacity, spacing,
jitter, and other parameters when you draw a paint stroke with a Wacom tablet.
• Apply Pen Speed behavior in Motion maps stylus speed to width, opacity, spacing, jitter,
and other parameters when you draw a paint stroke with a Wacom tablet.
• Apply Pen Tilt behavior in Motion maps stylus angle to width, opacity, spacing, jitter,
and other parameters when you draw a paint stroke with a Wacom tablet.
• Oscillate Shape behavior in Motion animates a shape by cycling its control points
between two values.
• Randomize Shape behavior in Motion animates a shape by applying a random offset to
each control point.
• Sequence Paint behavior in Motion animates the individual dabs of a paint stroke in
sequence over time.
• Track Points behavior in Motion pins the control points of a shape or mask to a moving
clip or animated object.
• Wriggle Shape behavior in Motion animates a shape with an effect similar to the
Randomize Shape behavior, but more slowly.
• Write On behavior in Motion draws a paint stroke or shape outline in the canvas over time.