Apple Shake 4 - Manual (Page 721)

Chapter 25 Image Tracking, Stabilization, and SmoothCam 721
Stabilize Additions
If you are using the Stabilize node, include the following additional steps with the
general steps above.
1 Determine if you need one-, two-, or four-point tracking.
Note: For two- or four-point tracking, select “2 pt” or “4 pt” in the trackType parameters.
In the Stabilize node parameters, set applyTransform to active in order to stabilize the
plate.
2 If you are using the Stabilize node for matchmoving, toggle the inverseTransform
parameter from stabilize to match.
MatchMove Additions
If you are using the MatchMove node, include the following additional steps with the
general steps above.
1 Attach the foreground element to the first input of the MatchMove node.
2 Determine if you need one-, two-, or four-point tracking.
3 In the MatchMove parameters, set the outputType to Over (or another compositing
operation).
4 Set the applyTransform parameter to active (to match the motion).
Note: If you are four-point tracking (make sure “4 pt” is enabled in the trackType
parameter), and you want to attach four arbitrary points on the foreground image to
the background, click the BG/FG button in the Viewer shelf to show the foreground.
Next, position the four corners on the foreground element. These represent the corners
that are plugged into the four tracking points. Click the BG/FG button again to show
the background.
5 You may have to set the outputType parameter to Over again (or whichever
compositing mode you selected in step 3).
Adjusting the Onscreen Tracker Controls
The Tracker, Stabilize, and MatchMove nodes share common onscreen interface controls
in the Viewer.
A tracker consists of three onscreen controls:
• Search region: The outer box
• Reference pattern: The inner box