9

624 Chapter 12: Animation
The weight curve becomes visible at the top of
the balance tr ack.
Tip: If you can’t see the weight curve, click
Preferences to display the Mixer Preferences
dialog, and turn on Weight Cur ves.
7. Add nodes to the weight curve, and adjust the
nodes. For information on how to add nodes
andeditweightcurves,seeAdjusting Track
Weight (page 2–619).
When the weight is set to 0.0, the Mixer will
notadjustthespineandpelvismotionto
compensate for differences in the upper and
lower body mot ion. Values between 0.0 and 1.0
will adjust the balance to some degree.
To fine-tune balance compensation on the pelvis
and spine:
ThevaluesontheBalanceParametersdialogcan
be used to make subtle adjustments to the biped’s
balance.
1. In the Motion Mixer, select the biped by
clicking its name at the upper left corner of its
trackgroups.
2. From the Motion Mixer menu, choose Mix >
Balance Parameters.
The B a lance Parameters dialog appears.
3. Toadjustthedegreeofhorizontalbalance
compensation on the pelvis, change the Lateral
Ratio parameter. Lower values make more
forward/backward motion on the pelvis, while
higher values use more s ide-to-side motion to
compensate.
4. Toadjustthedegreetowhichspinerotation
from the lower body motion is propagated
ontheupperbody,changethePropagation
parameter. Higher values rotate the spine links
to better follow the COM and pelvis motion.
Bipeds with same upper and lower body motion. Biped
on left has Propagation set to 0.0, biped on right with
Propagation at 1.0.
Expor ting Animation to the B iped
Once you’ve worked with the Motion Mixer to
create an animated sequence for the biped, there
areseveralwaystoworkwiththefinishedmix.
If you want to work with the mix on the c u rrent
biped (rather than a another biped in the scene),
you have several options:
•
If you’re satisfied with the animation as
itis,youcanturnonMixerModeontheBiped
rollout (page 2–936) to display the mix on the
biped, and simply render the scene.