9

614 Chapter 12: Animation
Trackgroups for Spine, Legs and Arms. The Arms trackgroup
has two tracks.
Note: Create only one trackgroup for each filtered
set of b ody parts. For example, don’t use two
trackgroups that both filter the spine. If you do
so, the trackgroup highest in the Motion Mixer
is used, and the other trackgroup is ignored.
Instead, use multiple tracks within the trackgroup
to achieve the animation you want.
Pr ocedur es
To add a new trackgroup for the biped:
1.
Highlight the name of an existing trackgroup.
2. Right-click the trackgroup name and choose
Add Trackgroup Above or A dd Trackgroup
Below.
A new t rackgroup and Layer track are added
above or below the existing trackgroups. You
can add more tracks to the t rackgroup by
right-clicking the exist ing track and choosing
one of the options from the pop-up menu.
To filter and name a track group:
1.
Highlight the trackgroup label at the upper left
corner of the trackgroup you want to filter. By
default, the trackgroup label is All, denoting
that the trackgroup currently affects all biped
parts.
2. From the Motion Mixer menu, choose
Track groups > Filter.
The Trackgroup Filter dialog appears. By
default, all body parts are selected.
3. Click on body parts in the diagram to selec t or
deselect them. You can also use the buttons
below the diag ram to help make the selection.
For example, if the trackgroup will affect only
thearms,clickNonetodeselectallbipedparts,
then click t he four arm boxes to selec t the arms.
4. Enter an appropriate name for the trackgroup
at the bottom of the Trackgroup Filter dialog,
such as Arms .