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Center of Mass (COM)

The parent or root object of a biped. Transforming the center of mass moves the entire biped. The center of mass can move outside of the biped body; for example, moving the center of mass forward can help simulate lifting a heavy object. The center of mass uses three animation tracks to animate the biped. Two of these tracks, Body Vertical and Body Horizontal, contain biped dynamics parameters. See Track Selection Rollout.