Apple MA434Z/A User Manual - Page 737

After the track curve is smoothed: Linking to Tracking Data Referencing track point data works similarly to referencing any other parameter within Shake. The twist here is that since you can rename the track point, you can change the name of the referred parameter. For example, if you have a Tracker node named Tracker1, and a track point set to its default name "track1," do one of the following: m To reference the X track data, use: Tracker1.track1X. m If you change the name of the track point to "lowerleft," then the reference is changed to Tracker1.lowerleftX. This applies to the Y data as well. m You can also use Link Track (in the trackName text field shorcut menu) to link one track to another track, simultaneously linking the X and Y curves. Removing Jitter on a Camera Move The following technique is useful when the clip contains a camera move that you want to preserve, but which has a lot of jitter. You need to stabilize the shot, but only by the small amount that is the actual jitter. To do this, you can combine the techniques mentioned above. Note: The SmoothCam node was specifically developed to smooth out or lock irregular camera movement within a shot in a much simpler way. For more information, see "The SmoothCam Node" on page 754. To remove jitter and preserve the camera move: 1 Track the plate with a Tracker node (for this example, called Tracker1). 2 In the Tracker1 parameters, click Add to create a second tracker in the same node. 3 Load track1 into track2 using Load Track (right-click in the track2 text field). 4 Right-click track2, then choose Smooth Track from the shortcut menu. 5 Enter a smooth value, click Apply, then click Done. Chapter 25 Image Tracking, Stabilization, and SmoothCam 737