Apple Shake 4 Tutorials Manuel d'utilisateur télécharger pdf (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.”

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Apple Shake 4 Tutorials Manuel d'utilisateur Page 212