Autodesk 495B1-05A111-1301 - 3ds Max Design 2010, User Manual

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3 Toggle the Create Trackers button and click Link.
A Tracker and Tracker Analyzer is created in the dependency graph.
NOTE If you selected all the points in the shape, a Tracker Analyzer will be
created for each point.
Choosing a Reference Point
A good reference point is a high-contrast pattern that has good definition
both vertically and horizontally, which allows for perfect registration in both
directions. Preferably, the reference point should not change much over time.
To choose a good reference point, play the footage several times to become
familiar with the material. Ideally, you should try to find a pattern that is
present in every frame. However, this is not always possible, and you may
have to track two different features, such as object that disappears behind
another one, or an object that moves out of the frame. The reference frame
(the frame on which you place the reference box) should be the frame where
the reference point is most representative in terms of shape, size, and rotation.
Generally, you position the reference box over the reference point in the first
frame of the sequence, but you could also place it on the last frame and analyze
backwards. Another alternative is to place it on a frame in the middle of the
footage and analyze from that frame backward to frame 1, and then analyze
from that frame forward to the end of the footage.
762 | Chapter 32 Tracking and Stabilizing