8

828 Chapter 14: Character Studio
1.
Prepare a biped with IK keys on its feet, and its
left hand constrained to an IK object.
2. Select your biped and expand the L ayers rollout
on the Motion panel.
3. Create a new layer and rename it Low
center of mass
.
The Retarget L eft A rm button in the Retargeting
group becomes active, which indicates that the
current layer honors the IK constraint of the
base layer for this body part.
4. Turn on Auto Key mode (page
3–760)
.
5. OntheTrackSelectionrollout,turnon
Body Vertical.
This selects the biped’s center of mass.
6. Lower the cen t er of mass on the Z axis until
the biped’s head is under the base layer’s head
display (represented as a red box).
Tip: To avoid deselecting the center of
mass, you can lock it by clicking the
Selection
Lock Toggle (page 3–754)
(or press Spacebar ).
Theentirebipedisloweredexceptitslefthand,
which remains locked to the object because the
current layer retargets it to match the respective
IK constraint of the base layer.