9
1024 Chapter 14: character studio
Inter face
Parts to Filter—Sets the filter to ac t on either the
display object or the en tire selection of objects.
•
Display Cur ve Part —Sets the filter to act on the
displayed object curves.
•
Selected Par ts—Sets the filter to act on the ac tive
selection. Especially useful when working on
the whole biped.
Time to Filter—Sets the range to be filtered to
eithertheentirebipedanimation,theactivetime
segment, or a custom range of frames.
•
Entire Animation—S ets the time to filter to be
the complete biped animation (disregarding
theactivetimesegment).
•
Active T ime S egment—Sets the t ime to filter
to be the scene active time segment. You s et
theactivetimesegmentinthe3dsMaxTime
Configuration dialog.
•
Fr o m / To: —Sets the time to filter to a custom
range of f rames.
Filters group
Filters list—Choose the filter to use from this
drop-down list.
The available filter types include smoothing ,
blurring, boosting, key reduction, and subanims.
• Rot filtersworkinquaternionrotationspace,
and modify the quaternions of the specified
animation tracks.
• Pos filters work in the specified positional
coordinate system, and modify the positions of
the anim ation t racks.
•
Blurring—Uses basic Gaussian filters that take
a weighted average over the w idth. Blurring
filters are good for smoothing out noise, but
canalsoover-smoothareasthataren’tnoisy.
See Blurring, Smoothing, and Boosting
parameters (page 2–1025),below.
• Smo othi n g filters, on the other hand, are
much be tter than blurring filters for keeping
thegeneralshapeofthetrackorcurve.They
affect only areas that have big changes. The
drawbackofthesmoothingfiltersisthatthey
don’t change the curve as dramatically as the
blur r ing filters do, so sometimes you’ll need
to run the smoothing filter multiple times to
smooth out a particularly noisy area.
• Adv Rot Smoothing works even better than
the normal angular smoothing filter when it
comes to modifying only large changes and not
small ones.
See Blurring, Smoothing, and Boosting
parameters (page 2–1025).