5

Table Of Contents
Note: When the Match Move behavior is applied to a mask, the masked object is selected
as the source.
Action menu: Choose from a list of tracking data (from other tracking behaviors) in the
project.
Movement: The Movement parameters contain the Analyze and Reverse controls, which
appear when there is a tracking source (footage) in the source well.
Analyze: Click the Analyze button to begin the 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 of the track is based on the current playhead position, rather than the start
of the behavior in the Timeline.
Reverse: When the Reverse checkbox is selected, the clip is analyzed from the current
playhead position to the first frame of the clip (or the first frame of the tracking
behavior).
Note: You must move the playhead to the frame where you want to begin the reverse
analysis.
Type: This pop-up menu allows you to choose between one-point, two-point, or four-point
tracking. There are two options:
Transformation: This option allows one-point or two-point tracking, transforming the
destination object.
Four Corners: This option enables four-point tracking, corner-pinning the destination
object. When this option is chosen, the Direction and Adjust parameters are no longer
available.
Important: The Four Corners option is not available when Match Move is applied to a
3D group or a mask. To corner-pin a 3D group, select the Flatten checkbox in the Group
Inspector.
Direction: This pop-up menu specifies the dimension in which the recorded movement
is applied to the destination object: Horizontal and Vertical (X and Y), Horizontal (only X),
or Vertical (only Y).
1345Chapter 22 Motion Tracking