Apple Color 1.5 - Manual (Page 372)

If you track a limited range of a shot’s total duration by setting In and Out points for the
tracker that are shorter than the length of the shot, the vignette stays at the initial position
you drag it to until the playhead reaches the tracker’s In point, at which time the vignette
begins to follow the tracker’s motion path. When the playhead reaches the Out point,
the vignette stops and remains at the last tracked frame’s position until the end of the
shot.
Note: If you apply a tracker to the Pan & Scan settings for any shot in a project that was
sent from Final Cut Pro, the tracking data will be lost when the project is sent back to
Final Cut Pro. However, if it’s for a project that’s being rendered as a DPX or Cineon image
sequence, the animated Pan & Scan settings will be rendered into the final image.
Controls in the Tracking Tab
Motion tracking is accomplished by creating a tracker in the Tracker list in the Tracking
tab of the Geometry room. You can create as many trackers for a shot as you like, but
you can only use one at a time to animate a vignette or shape. The Tracker list shows
every tracker you’ve created and analyzed for a given shot, and each tracker has an ID
number (they’re numbered in the order in which they’re created). These ID numbers
appear in the Use Tracker pop-up menu for any vignette or shape that can be animated
using a tracker.
372 Chapter 15 The Geometry Room