5.5

1167Motion User Guide
Match Move controls in Motion
The Match Move behavior analyzes the movement of a source object, then applies that
movement data to a destination object (a video clip, group, camera, shape, particle emitter,
or other object in Motion).
Important: When you apply the Match Move behavior to a group, make sure the footage
being analyzed resides outside of the destination group.
For information on using the Match Move behavior, see Match move an object in Motion.
To use Match Move (and access its parameter controls), your project must contain a source
object and a destination object. You apply the Match Move layer to destination object;
when you do so, the Behaviors Inspector displays the following adjustable controls:
• Source: A source well to specify the source object supplying tracking data to the
destination object. The source object can be another tracking behavior, an animated
object, or a video clip. When you apply a Match Move behavior to a destination object,
the nearest animated object, recorded track, or footage object beneath the behavior in
the Layers list appears in this well. If a source object isn’t automatically assigned, drag
one from the Layers list into this well. To clear the Source well, drag its thumbnail away
from the well and release the mouse button.
When you drag any nonfootage object (such as a shape or mask) into the Source well,
the trackers are no longer available in the Match Move behavior as there is no clip to
analyze. Whatever animation (keyframes or behaviors) is present in the shape or mask
is applied.
Note: When you apply the Match Move behavior to a mask, the masked object is
selected as the source.
• Action pop-up menu: A pop-up menu (with a gear icon) to manually assign tracking data
(from other tracking behaviors in your project).
• Movement: Two controls used for the motion-tracking analysis:
• Analyze: A button to activate a motion-tracking analysis. When you click Analyze, a
status window appears and displays the tracking progress. To stop the analysis, click
the Stop button in the status window or press Esc.
The start frame of the track analysis is based on the current playhead position,
rather than the beginning of the behavior bar in the Timeline.
• Reverse: A checkbox that, when selected, reverses the analysis direction, going from
the playhead position to the first frame of the clip (or the first frame of the tracking
behavior).
Note: You must drag the playhead to the frame where you want the reverse analysis
to begin.
• Type: A pop-up menu to set the type of motion tracking used in the analysis. There are
two options:
• Transformation: Enables one-point (position) tracking or two-point (position, scale,
and rotation) tracking, transforming the destination object.
• Four Corners: Enables four-point tracking, corner-pinning the destination object.
When Type is set to Four Corners, the Direction and Adjust parameters (described
below) are no longer available.