Apple Shake 4 Tutorials - Manual (Page 212)

212 Chapter 7 Tracking and Stabilization
12 In the MatchMove Parameters tab, set the referenceBehavior pop-up menu to “update if
below reference tolerance.”
13 Find a frame with a high correlation. Although you can track from frame 33 (the frame
before the tracker got confused), it is better to find a frame with a high correlation. The
correlation is displayed in the yellow text next to the tracker box. Ideally, this is of
course frame 1, but you may find a high correlation at approximately frame 14.
14 Click Track Forward.
With the above settings, you should get a successful track.
Note: You can also manually enter track positions with the use of the Autokey button
in the Viewer shelf. Note that this is often the only way to get a track working.
15 If the track fails again, repeat these steps, or manually reposition the tracker at the
missed frame and restart the tracking.
To apply the other three trackers:
1 In the MatchMove parameters, set the trackType to “4 pt.”