8

Quaternion/Euler Rollout 803
an airborne period. This means that keys do
not need to be created at the lowest position of
the biped after landing; a trajectory is calculated
automatically.
Note: Keys can be created manually to override the
calculated trajectory during the landing period.
However , vertical k eys must have Dynamics
Blend=0.0 in order to fully override the trajectory
during the airb orne period.
B ody R otation—Selects the center of mass to
edit biped rotational motion.
Lock COM K ey in g—When on, allows you
to select multiple COM tracks a t the same time.
Once locked, the tracks are stored in memory, and
are remembered ever y t ime the COM is selected.
Note: Locked COM tracks are also honored after a
scene reset or a session change.
S ymm etrical T racks —Selects the m atching
object on the other side of the biped. For example,
if the right arm is selected, clicking Symmetrical
Tracks selects the left arm too. You can then
make changes to both sides of the body at once.
Symmetrica l Tracks works for single and multiple
biped objects.
Opposite—Selects the matching object on the
other side of the biped, and deselects the current
object. For example, if the right arm is selected,
clicking Opposite Tracks selects the left arm.
Opposite Tracks can be used for single or multiple
objects.
Qua ter ni on/E uler R o llou t
Selec t the biped > Motion panel > Quaternion/Euler
rollout
This rollout contains options to switch between
Eulerorquaternioncontrollersonbiped
animations. These choices offer alternative ways
to control an animation in the Curve Editor. For
more details, refer to
Working w ith Euler Cur ves
on Biped Animation (page 2–861)
.
Procedures
To switch between qua ter nion a nd Euler r otati on
controllers:
1.
Create a biped.
2. Turn on Auto Ke y.
3. Selectthebiped’supperarmandrotateit
so it extends forward.
4. Go to frame 20 and rotate the up per arm
so it extends sideways.
5. Go to frame 40 and rotate the up per arm
back to its original orientation.
From left to right, the biped at frame 0, 20, and 40 .