5 Move your cursor over the green circle.
The cursor turns yellow, meaning that any rotation is locked to that axis.6 Rotate the center of mass approximately 90 degrees about the Y axis.
Watch the coordinate readout near the gizmo to see how far you're
rotating the biped. Rotate until the biped is lying prone.TIPIf you like, you can press A to turn on Angle Snap, which lets you easily
rotate to 90 degrees.An animation key appears at the far left of the track bar, at frame 0.
You can select all three COM tracks under Track Selection to create
keyframes simultaneously. Try this:7 On the Track Selection Rollout, click Lock COM Keying, and then
click the Body Rotation button.8 On the Track Selection rollout click both the Body Horizontal
and Body Vertical buttons so that both tracks are selected.All the multiple tracks for the COM are now active.9 Expand the Key Info rollout and click Set Key.
This sets keys for all the COM tracks at frame 0. The trackbar key shows
a multi-color display, indicating that both position and rotation keys
have been created.10 Click Lock COM Keying again to unlock the COM tracks.TIPIt’s a good idea to set a key at the start of your animation for the three
COM tracks.766 | Chapter 5 Character-Animation Tutorials