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Chapter 2 Motion Tracking 65
The foreground element is “pinned” on the background element.
Note: In this example, a reflection is created on the table using a duplicated and
transformed copy of the tracked image.
To fine-tune the track, you may need to make minor adjustments to the foreground
element, such as modifying its scale or rotation. When you choose the default Attach to
Source option from the Transform pop-up menu in the Behaviors tab of the Inspector,
you cannot transform the tracked object. To transform the tracked object, choose
Mimic Source from the Transform pop-up menu.
5 To transform the foreground element after the tracking data has been applied, choose
Mimic Source from the Transform pop-up menu in the Behaviors tab of the Inspector,
then make your adjustments in the Properties tab of the Inspector.
For more information on the Mimic Source and Attach to Source transform options, see
“Match Move Controls” on page 100.
Option 2: Corner-Pin the Object Before Tracking
In this workflow, a foreground object is pinned to a background picture frame using
the Four Corner parameter in the Properties tab prior to applying the Match Move
behavior.
To adjust the four corners of an element and then corner-pin the element:
1 Select the foreground element you want to corner-pin.