Apple Motion 5.1.1 - Manual (Page 968)

Chapter 22 Motion tracking 968
3 In the Canvas, drag each corner of the foreground object into the correct position.
You can fine-tune the corner positions by adjusting the Position, Rotation, Scale, and Four Corner
parameters in the Properties Inspector.
When you drag a corner in the Canvas, the Four Corner checkbox is selected in the
Properties Inspector.
Tip: You can lower the opacity of the foreground object to better see the reference points on the
background clip. You may also want to disable snapping so the image you are adjusting does not
snap to the Canvas guidelines. To turn snapping on or off, choose View > Snap or press N.
4 Move the playhead to the frame where you want to start the track analysis, then apply the Match
Move behavior to the foreground object.
In the Canvas, a tracker appears at each corner of the foreground object. In the Inspector, the
default track list (Anchor and Rotation-Scale) is replaced with the Top Left, Top Right, Bottom
Right, and Bottom Left trackers.
5 If necessary, drag each tracker in the Canvas to further fine-tune its position, watching the
magnified view in the Tracker Preview area of the Inspector.
67% resize factor