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About Destination Object Animation
You can use the Match Move behavior to apply the movement of a source object to a
destination object. When a destination object has no animation of its own, it precisely
follows the motion of the source object. However, if the destination object is animated
(has its own applied behaviors or keyframes), more complicated motion effects can be
achieved by combining motion paths.
You can specify whether the animation of the destination object is ignored by or added
to the Match Move behavior. You do this in the Match Move Behaviors Inspector, by
choosing one of two options from the Transform pop-up menu: Attach to Source or
Mimic Source.
Choosing Attach to Source applies the movement of the source object to the destination
object, but disables any animation inherent in the destination object. (However, you
can reactivate the destination object’s own animation and deactivate the source object’s
recorded track by turning off the Position, Scale, and Rotation buttons in the Adjust row
of the Behaviors Inspector.)
Choosing Mimic Source combines the motion paths of the source object and destination
object’s own animation. In other words, the destination object maintains its own
animation while at the same time mimicking the motion in the source object’s recorded
track. When the Match Move behavior is set to Mimic Source, turning off the Position,
Scale, and Rotation buttons deactivates the source object’s recorded track. For more
information on Attach to Source and Mimic Source, see Match Move Controls.
Reordering Match Move Behaviors
When you add a Match Move behavior to a project, the closest active footage or animated
object in the Layers list below the clip with the behavior is applied as the source animation.
This source of animation appears in the Source well of the Match Move Behaviors Inspector.
When you move Match Move behaviors in the Layers list, that data is reset. To retain the
source animation data, rather than dragging to reorder layers, copy the Match Move
behavior and paste it to another object.
To copy and paste a behavior
1 Select the behavior to copy in the Layers list.
2 Choose Edit > Copy (Command-C).
3 Select the layer to apply the copied behavior to.
4 Choose Edit > Paste (Command-V).
The copied behavior is applied to another object.
Note: You can also Option-drag the behavior to copy and paste it to a different object.
1303Chapter 22 Motion Tracking