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Table Of Contents
1145Motion User Guide
Trackers appear for each control point on the shape. The trackers are arrayed in the
same order that the shape was drawn: Control Point 1 is Track 1, Control Point 2 is
Track 2, and so on.
4. Drag the trackers to fine-tune their positions on the reference patterns of the
background footage.
As you drag, a magnified inset view of the area around the tracker appears.
5. To disable a tracker, deselect its checkbox in the Behaviors Inspector.
Note: Control points without an associated tracker are not modified.
6. Click the Analyze button in the Behaviors Inspector or HUD.
The mask control points are tracked to the reference patterns in the background
footage.
In this example, a mask is tracked to a moving plane so the plane is isolated from the
rest of the clip. The image on the left shows the original unmodified clip. In the image
on the right, the tracked mask isolates the plane, allowing separate effects to be
applied to the plane and its background even though they’re part of the same image.
The mask protects the plane from the results of the color effects, blur, and cloud
generator.