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Home: Autodesk Maya Online Help
Review the Track Summary
Tracking
Use the Track Display panel
Determine when you’re ready to solve
You
don’t have to make tracking perfect before you solve. We recommend tracking
and solving in passes. Track the
basic points and get a rough solve, then add more track points to
increase the solution’s accuracy.
Use the Track Summary panel
to help determine if you’re ready to solve. Look for the following:
- Number
of track points over time: You need a good coverage throughout the
shot. See
Number of track points for
more information.
- Ready
To Solve bar and per point solvability: These indicators
should be mostly green.
- Errors
in tracking: You can still solve if there is some red in the tracking data,
but play any red regions to make sure the track box is on target. Delete
any regions where the track box is off target and cannot be corrected.
Number of track points
The optimal number of track points
depends on several factors. Here are some guidelines:
- Generally,
a rough solution (1-2 pixel slippage) is possible with 5 to 10 well-tracked points
visible at any given time.
- Because
some points drop out of visibility, you may need more than 10 points
overall. Longer shots usually require more points.
- Shots
with minimal camera movement need more points than shots with lots
of camera movement.
- By
providing survey constraints, such as the depth from the camera
or the distance between points, you can typically reduce the number
of points needed.
- The
more accuracy you require in the solution, the more well-tracked points
you should add. However, adding more than 40 points would probably
diminish the benefit.