Apple MA434Z/A User Manual - Page 740

Tracking File Format The following is a sample saved track file for use with the Save Track File or Load Track File command (right-click in the track name text field to access the shortcut menu). TrackName track1 Frame 1.00 2.00 etc... X 462.000 405.000 Y 210.000 192.000 Correlation 1.000 1.000 Note: The Save Track File or Load Track File command is different from the Load Expression command. The Load Expression command is available in the shortcut menu of any node's value field and looks for formatted Shake expressions. For example, to load the above information into a Move2D node, you must load two files, one for the xPan parameter and one for the yPan parameter. Their formats are similar to the following: Linear(0,0462@1, 405@2, ....) and Linear(0,210@1, 192@2, ...) Tracking Nodes The following section includes the tracking functions located in the Transform Tool tab. For information on other Transform functions, see Chapter 26, "Transformations, Motion Blur, and AutoAlign," on page 763. MatchMove The MatchMove node is a dedicated tracking node to match a foreground element to a background element using one-point (panning), two-point (panning, scaling, or rotation), or four-point (corner pinning) tracking. Unlike the Tracker or Stabilize node, MatchMove can perform the compositing operation, or you can pass the transformed foreground out for further modifications (blur, color corrections, and so on) before you do a composite. The MatchMove node can generate up to four tracking points, or you can load in other tracks (created in Shake or on disk). To load another track, right-click in a trackName text field, then choose Load Track from the shortcut menu. 740 Chapter 25 Image Tracking, Stabilization, and SmoothCam