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1026 Chapter 14: character studio
to a biped subanim, and then collapse it by
right-clicking and choosing Properties. The
difference b etween using this in the Motion panel
and in the Workbench is that you can apply
subanims to multiple biped objects in one step
when using the Workbench filter.
Key Reducer parameters
Create K ey Per Fra me—When on, the filter creates a
key per frame for every selected track. Default=off.
Tolerance—Sets the maximum angu lar or
positional dev iation for a track (other than a C OM
track). Default=3.0.
Values are in units of translation for position
tracks, and in degrees for rotation tr acks.
Key Spacing—Sets the m inimum number of fr ames
between keys (other than COM keys).
Tolerance is computed first, then Minimum Key
Spacing computes f urther key reduction.
COM Parameters—These Tolerance and Key
Spacing settings affect key reduction only
on specified center-of-mass (COM) tracks
(horizontal, vertical, or rotational).
Filter——Clicktoapplytheactivefiltertothe
selected tracks.
Using Motion Flow
Selec t a biped > Motion pane l > Biped ro llout > Motion
Flow Mode
Motion flow mode provides an area to graphically
arrange clips into a network and tools to create
and edit transitions between clips. Motion flow
mode is used to organize clips into a network to
animate one or more bipeds. The network of clips
are joined together by transitions. A motion flow
script is u s ed to associate the network of clips with
the biped. To animate one biped, you create a
single motion flow script that uses a list of clips to
animate the biped. To animate multiple bipeds or
a crowd of bipeds, you can either use the random
method of clip selection or a delega te–driven
approach.
The random method simply picks clips at random
and creates random scripts for each biped. This
approach works well if the bipeds are standing
stillorarefarapartanddon’trequirecollision
detection: a crowd of cheering fans at a ball game,
for example. Clip and transition percentages are
set with the Create Random Motion (page 2–1055)
command during motion synthesis.
When dealing with a crowd, or multiple bipeds
that are close together, t he delegate driven
approach is the best solution. This approach uses