Apple MA434Z/A User Manual - Page 739

In the applyScale and applyRotate parameters, enable "live" to use the mathematical calculation of the four curves (track1X, track1Y, track2X, and track2Y)-live mode takes the track1 and track2 expressions and creates scale or rotational curves you can view in the Curve Editor. To convert curves into editable data (generate keyframes), click "baked" in the applyScale and applyRotate parameters. Note: Two-point (or four-point) tracking is only available in the MatchMove and Stabilize nodes (not the Tracker node). Saving Tracks Once a track is complete, you can save the track (in the Tracker, MatchMove, or Stabilize node) for use by another tracking function, a paint stroke, or to a RotoShape node. Note: Although you cannot attach a saved track file to a paint stroke or RotoShape node, you can add a tracking node to your script, load the saved track file in the tracking node, then apply the track to your shape or paint stroke. For more information on attaching trackers to strokes and shapes, see "Attaching a Tracker to a Paint Stroke" on page 586 and "Attaching Trackers to Shapes and Points" on page 562. To save a track file: 1 Create your track using the Tracker, MatchMove, or Stabilize node. 2 In the tracker Parameters tab, right-click the trackName field, then choose Save Track File from the shortcut menu. 3 In the "Save tracking data to file window," navigate to the directory in which you want to save the track file, then enter the track file name. 4 Click OK. The track file is saved. To load a track file: 1 Add a Tracker, MatchMove, or Stabilize node. 2 In the tracker Parameters tab, right-click the trackName field, then choose Load Track File from the shortcut menu. 3 In the "Load tracking data from file" window, navigate to the track you want to load. 4 Click OK. The track is applied to the tracker. Chapter 25 Image Tracking, Stabilization, and SmoothCam 739