9

950 Chapter 14: character studio
which it is restored af ter a scene reset or session
change.
Euler — Converts the selected biped animat ion
to Euler rotation.
Axis Order — Lets you choose the order in which
theEulerrotationcurvesarecalculated.Availabe
only when Euler is active. Default=YXZ.
Changingtheorderingreflectsonthecurves,
which are modified accordingly. However, this
change does not affect the animation itself.
Note: This setting is indep endent of the Workbench
Axis Order sett ing.
Twist Poses Rollout
Select a biped. > Motion panel > Twist Poses rollout
The toolset of this rollout lets you create and edit
tw ist poses for a biped’s limbs. You can either use
the rollout’s preset poses (which you can modify
and rename), or create your ow n . When you add
a new pose, you establish a reference between
theselected’slimbrelativeorientationandthe
rollout’s Twist value of 0 (which means no twist).
When more than one reference pose are set for a
rotatedlimb,thelimb’stwistingiscalculatedbased
on the nearest pose.
Tip: It is sug gested that you add twist poses
forallmajorlimbrotatedposes. Thisensures
that rotating your biped’s limb produces
well-calibrated twisting.
Note: You don’t technically have to enable twist
links (page 2–987) to use the Twist Poses rollout
toolset. Ho wever, if your biped does not contain
twist links, the Twist and Bias settings are not used.
The Twist Poses rollout tools only affect limbs with
three degrees of freedom (DOF), such as upper
arms and thighs, because you can cont rol their
tw ist lin ks by rotating them. Two-DOF limbs
(forearms and calves, for instance) differ due to
thefactthatyoucanonlycontroltheirtwistlinks
if you rotate their child limb.
The upper arm can twist itself w hile the forearm needs the
wrist to twist it.
Note: If you select a two-DOF limb, the only
available setting is the Bias value; you can change it
to adjust the rotation distribution along the twist
links.
Procedures
Exa mple: To Add and Edit Twist Poses:
This procedure takes into account the concept of
adding tw ist links (page 2–987) to biped limbs and
concentrates on using the tools fr om the Twist
Poses rollout to set up basic poses.
1. Prepare a biped with five twist links on each
upper arm.
Tip: Yo u c a n u s e See-Through (page 1–55) on
the biped’s limbs to better distinguish the twist
links inside.