2009

■ If transitions between different foot/leg motions have created small pops
or jerks near the transition area, you will want to create a
mixdown on
page 8045 for the biped and check the mixdown before copying it to the
biped. A mixdown can correct many continuity problems with feet and
legs. You can correct transitions and recompute the mixdown as many
times as you like. When the mixdown is satisfactory, you can copy it to
the biped.
If you want to use the motion with a different biped, you can copy the
mixdown to the current biped, save the motion as a BIP file, and load the new
BIP file onto the other biped.
The mix can also be saved as a MIX (.mix) file. A
MIX file on page 8045 can be
loaded onto other bipeds and edited as needed in the Motion Mixer.
Fixing Foot-Based Transitions with a Mixdown
When you create a transition between two motions with planted feet (feet
with IK constraints), the motion might not match perfectly between clips.
When this occurs, a planted foot might slide or pop, or a leg might stretch
unnaturally during or near the transition period.
A mixdown can correct two types of problems during transitions between
foot-based motions:
■ A foot sliding as it transitions from one planted motion to another.
■ A leg extending completely straight (hyper-extending) unnaturally to reach
a planted position.
The mixdown options on the Mixer Preferences dialog on page 3791 can
help correct these problems. To access this dialog, click Preferences on the
Motion Mixer toolbar.
3742 | Chapter 15 Animation