3
Table Of Contents
- Motion 3 Supplemental Documentation
- Contents
- 3D Compositing
- Motion Tracking
- About Motion Tracking
- How a Tracker Works
- Motion Tracking Behaviors
- Shape Track Points Behavior
- Track Parameter Behavior
- Motion Tracking Workflows
- Adjusting the Onscreen Trackers
- Strategies for Better Tracking
- Finding a Good Reference Pattern
- Manually Coaxing Your Track
- Manually Modifying Tracks
- Converting Tracks to Keyframes
- When Good Tracks Go Bad
- Smoothing Tracking Keyframe Curves
- Preserving Image Quality
- Asking Motion for a Hint
- Giving Motion a Hint
- Tracking Images with Perspective, Scale, or Rotational Shifts
- Tracking Obscured or Off-Frame Points
- Tracking Retimed Footage
- Troubleshooting Stabilizing Effects
- Removing Black Borders Introduced by Stabilizing
- Some General Guidelines
- Tracking and Groups
- Saving Tracks
- Motion Tracking Behavior Parameters
58 Chapter 2 Motion Tracking
The analyzed track, contained in the Analyze Motion behavior, can now be loaded into
other tracking behaviors (via a pop-up menu in the HUD or Inspector of the other
tracking behaviors).
Note: The Stabilize behavior can only load tracks from other Stabilize behaviors.
Match Move Workflows
This section provides a general overview of several Match Move behavior workflows,
including four-corner pinning. For a full description of the Match Move parameters, see
“Match Move Controls” on page 100.
To use a Match Move behavior, you need a minimum of two objects in your project: a
background or source element and a foreground or destination object. The source
object provides the movement as either an animated object or a recorded track. The
movement from the source object is applied to the destination object.
Tracking behaviors pop-up menu in
the Match Move HUD
Loading Data into a Behavior
If the project contains any footage or animated objects when a Match Move, Stabilize,
or Unstabilize behavior is applied, the nearest footage or animated object below the
behavior in the Layers list is automatically applied to the behavior and appears in the
behavior’s Source well. This data is overwritten once a tracking analysis is done, or
you choose another track from the tracking behaviors pop-up menu.
You can assign an animated object or tracking data to a tracking behavior in four ways:
 Choose another tracking behavior from the tracking behaviors pop-up menu.
 Drag a tracking behavior or footage object to the Source well in the HUD or
Behaviors tab of the Inspector.
 Drag an animated object to the Source well in the HUD or Behaviors tab of the
Inspector. The referenced animated object is applied as the source for the current
behavior. This option only applies to the Match Move and Track Points behaviors.
 Drag a tracking behavior or footage object directly to the current tracking behavior
in the Layers list. The referenced tracking behavior or footage object is assigned as
the source for the current behavior.
Note: To clear a Source well, drag the item away from the well and release the mouse
button.