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680 Chapter 12: Animation
Enabled Track ers—
Operates on all the enabled
trackers in the Motion Trackers rollout.
All—Operates on all the trackers.
Cle ar t o End—Clears the position data in the
trackers specified in the Apply To group from the
current Movie Stepper frame onward. This is
useful for clearing out and redoing a portion of
the tracking.
Clear All—Clears all the position data in the
trackers specified in the Apply To group.
Show Data—Opens a text w indow that displays
thepositiondataforthetrackersspecifiedinthe
ApplyTobox. Thedisplayincludessometitle
lines showing the tracker number and associated
tracking object followed by comma separated
columns of numbers for the position data one row
per frame. All rows contain at least three columns:
fra me number, X position, Y position. Keyframe
frames also contain another eight columns:
feat ure bounds lef t, top, r ight, and bottom, and
Searchboundsleft,top,right,andbottom.The
coordinates in decimal pixels show any subpixel
tracking as decimal fract ions.
ThetextwindowisastandardMAXScriptsource
editor and you can copy, edit or sa ve the contents
to file.
Export—Creates a text file containing position data
for the trackers specified in the Apply To group.
Pressing this button displays a standard Save File
dialog ask ing for the location and name of the
file you’re creating. The fi le type defaults to .csv ,
thecomma-separatedvalueformatreadableby
Excel and other data processing applications. The
format of the data is exactly as for the Show Data
command descr ibed previously.
Came ra Tracker: Match Move
Rollout
Utilities panel > Utilities rollout > More button > Utilities
dialog > Camera Tracker > Match Move rollout
The C amera Tracker uti lit y’s Match Move rollout
automatically generates a camera animation by
correlating the 2D position data of the movie
features gathered during the tr acking phase with
the ass ociated 3D feature points in the 3ds Max
scene.
Interfa ce
Came ra—Enters an object-picking mode for you to
select the camera that you will match-move. You
can either select the camera directly in the scene or