Apple Color 1.5 - Manual (Page 374)

• Manual Tracker: Click to enter Manual Tracking mode, where you use the pointer to
click on a feature in the preview area that you want to track. Each click positions the
onscreen tracker control manually to create a tracking keyframe, and then advances
the playhead one frame, until you reach the end of the shot. Using this feature, you
can rapidly hand-track features in shots that automatic tracking can’t resolve.
• Tracking Curve Smoothness: Smooths the tracking data to eliminate uneven or irregular
motion. Higher values smooth the tracked motion path more. You can smooth both
automatic and manual tracking data.
Note: The original Motion Tracker data is retained and never modified via the smoothing.
• Process: Once you’ve adjusted the onscreen controls to identify a reference pattern
and search area, click Process to perform the analysis.
• New: Creates a new tracker in the Tracker list.
• Remove: Deletes the currently selected tracker in the Tracker list.
• Mark In: Marks an In point in the current shot at which to begin processing. When you
create a new tracker, the In point is automatically created at the current position of the
playhead.
• Mark Out: Marks an Out point in the current shot at which to end processing. When
you create a new tracker, the Out point is automatically created at the end of the last
frame of the shot.
Using the Tracking Tab
This section describes how to use the Tracking tab to create motion paths with which to
animate vignettes, shapes, and Pan & Scan settings.
To automatically track a feature
1 Move the playhead to the shot you want to track.
Since a new In point will be created at the position of the playhead, make sure to move
it to the first frame of the range you want to track.
2 Open the Tracker tab in the Geometry room, then click New.
A new, unprocessed tracker appears in the Tracker list, and its onscreen controls appear
in the image preview area. A green In point automatically appears at the playhead in a
new track of the Timeline, and a green Out point appears at the end.
374 Chapter 15 The Geometry Room