2009

IK Only When on, the biped's constrained hands and feet are retargeted only

during the frames on which they are IK controlled. When off, the hands and

feet are retargeted during both IK and FK keys. Default=off.

Dynamics & Adaptation Rollout

Select the biped. > Motion panel > Dynamics & Adaptation rollout

The controls on the Dynamics & Adaptation rollout let you specify the way

you want to create biped animation. The parameters let you modify gravity

strength, dynamic properties for keys generated by newly created footsteps,

the number of transform tracks available on the biped, and prevent key

adaptation.

Biped Dynamics and Spline Dynamics

These parameters specify how new biped center of mass keys are created and

therefore how you want to work with the biped. Turning on Spline Dynamics

will create center of mass keys, without gravity and balance calculation, for

newly created footsteps. This may feel more familiar to new users who are

already familiar with spline interpolation.

Biped Dynamics calculates biped airborne trajectory, knee bend on landing

and positions the biped to maintain balance when the spine is rotated. When

parameters change, the biped adapts. Turn on Biped Dynamics and use this

adaptation to your advantage.

You can always change from one method to the other on a per-key basis or

for the entire animation at any time.