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2 If you don’t want to use the automatically selected Stabilize behavior, do one of the
following:
• In the HUD or Behaviors Inspector, choose a Stabilize behavior from the Action pop-up
menu at the right of the Source well.
• Drag an analyzed tracking behavior to the Source well in the HUD or Behaviors Inspector.
The motion is applied to the destination object.
Track Points Workflow
The Track Points behavior (located in the Shape Behaviors category) is designed for use
with shapes, masks, and paint strokes. Use the Track points behavior in the following
ways:
• To track the control points of a shape or mask to a clip (for example, when rotoscoping)
• To apply tracking data from another tracking analysis to the control points of a shape
or mask
• To apply the animation of an object to the control points of a shape or mask
Note: To apply the analyzed movement of an object to a shape or mask as a whole (not
to the shape’s control points), use the Match Move behavior.
For a full description of the Track Points parameters, see Track Points Controls.
Tracking Control Points to a Clip
This section provides a brief overview of using the Track Points behavior to track the
vertices of a shape or mask to a clip. In the following example, the Track Points behavior
is applied to a loose mask of seven control points isolating a car in a background clip.
To track a mask using the Track Points behavior
1 With a background clip visible in the Canvas, use a mask tool to isolate part of the
background clip.
For more information on working with masks, see Masking a Layer or Group.
2 Select the mask object, then choose Shape > Track Points from the Add Behavior pop-up
menu in the toolbar.
1316 Chapter 22 Motion Tracking