5.1.1

Chapter 22 Motion tracking 993
Using either of the above techniques may still result in dynamic resizing. If you receive unwanted
results, export the group, import the group, then corner-pin the object.
Remove parallax from a 3D group
When match moving 3D groups that contain objects oset in Z space, parallax is simulated.
Parallax is the apparent shift of an object against a distant background caused by a shift in
perspective, such as a change in camera position.
m Select the Flatten checkbox for the tracked group in the Group Inspector.
The parallax eect is removed.
Save tracks
As with all behaviors in Motion, you can save tracking behaviors to the Library. However, a
tracking behavior must reference the tracked source object. Therefore, it may make more
sense to save the group that contains the tracking behavior, as well as the source footage, to
the Library.
Save a group to the Library
1 Open the Library and select the category where you want to save the group, such as the
Favorites category.
2 Drag the group that contains the tracking behavior and its source (tracked) footage from the
Layers list or Timeline into the stack at the bottom of the Library.
The group is added to the Library category.
Save a behavior to the Library
1 Open the Library and select the Favorites, Favorites Menu, or Behaviors category.
2 Drag the customized behavior you want to save from the Layers list, Timeline, or Inspector into
the stack at the bottom of the Library.
When you save a customized item to the Library, it is saved in the /Users/username/Library/
Application Support/Motion/Library/ folder.
For more information on saving behaviors to the Library, see Save custom behaviors on page 313.
Add a group to a project from the Library
1 Open the Library and select the category that contains the group.
2 Do one of the following:
•
To nest the group in an existing group, drag it to the existing group in the Layers list.
•
To create a group, drag it to an empty area in the lower portion of the Layers list.
The group is added to the project.
Apply a behavior to a clip from the Library
1 Open the Library and select the Favorites, Favorites Menu, or Behaviors category.
2 Drag the behavior to the clip in the Layers list, Timeline, or Canvas.
Reference another tracking behavior in a project
1 Add an Analyze Motion, Match Move, Stabilize, or Unstabilize behavior.
2 In the tracking behavior’s HUD or Inspector, choose a track from the tracking behaviors
pop-up menu.
The track is applied to the tracking behavior.
67% resize factor