2009

Rubber-Banding the COM
When Rubber Band mode is active, you can move the biped's center of mass
in relation to the rest of the body, changing the biped's overall balance.
Rubber-banding the center of mass defines your character's balance point in
at-rest pose and in any resulting motion.
When a character is standing at rest, with feet side by side, the center of mass
should be directly above the area where the feet touch the ground. The center
of mass determines the center of your character's distribution of weight. For
most characters, the physical center of mass is located near the pelvis.
Typical placements for the center of mass are:
Characters that stand erect, such as humanoids, use the default location
of the center of mass within the pelvis.
Characters that naturally lean forward, such as some dinosaurs and birds,
should have the center of mass moved slightly forward of the pelvis. This
is also good for robots and droid soldiers.
Characters that are holding a heavy weight out in front of them, or
overweight characters, might need their center of mass moved slightly
forward of the pelvis.
Characters that are pushing or pulling objects might need their center of
mass moved slightly behind the pelvis.
NOTE If you place the center of mass too far in front of the pelvis, the character
unnaturally compensates for balance. As each step is taken, the legs and body
move in an awkward fashion, as if there was an invisible weight attached to
the front of the character.
Footstep Animation | 4213