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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.