When you import motion capture data into Maya as animation curves, the curves might be mangled when the rotation values are restricted to a specific range. To correct this, you must filter your curves.
To filter your Euler curves
- In the Graph Editor, select the mangled animation curves (for example, Rotate X, Y, and Z).
- Select Curves > Euler Filter.
The filtering is always applied to entire curves, not to selected curve segments within some time range.