2009

You can create your own library of imported and optimized motion-capture
data by saving .bip files for use with other characters or as part of a longer
script in Motion Flow mode. Use a biped that has no mesh attached to it with
Physique. You import the data, adjust it to your liking, and save it as a .bip
file. You can also run standard .bip files through this filtering process to create
loops or to extract footsteps from a freeform animation.
NOTE Marker files contain position data. Regular motion-capture files contain joint
rotation data.
biped.ini Parameters
The biped.ini text file in the \plugcfg directory has parameters for smoothing
the values of motion-capture joint angles for the body's center of mass, the
spine, and the head during import. The lines appear as below:
MocapHeightSmoothing=0
MocapBodyHorzSmoothing=0
MocapBodyRotSmoothing=0
MocapSpineSmoothing=0
MocapHeadSmoothing=0
Higher values of smoothing will cause the importer to filter and "smooth out"
the data using a gaussian filter, taking out spikes and jerks in the motion.
These values must be integers, and can range from 0 to any high number, but
practical values would probably always be less than 10. For most cases,
smoothing is not needed, so the default values are set to zero.
Procedures
To use Fit To Existing to import a motion-capture file:
Use a motion-capture file that contains footsteps and other motion. A
handspring motion would be ideal for this example.
1 Select a biped.
2 Click Motion panel > Motion Capture rollout > Load Motion Capture
File.
3 Select a motion-capture file.
The Motion Capture Conversion Parameters dialog displays.
4 Set Footstep Extraction to On, then click OK.
The motion-capture file loads.
Motion Capture Rollout | 4593