a 3ds Max component that you access from the Create panel. Once
you create a biped, you animate it using the Biped controls on the
Motion panel. Biped provides tools to let you design and animate
the figures and motion of characters.
The biped skeleton created
with the Biped module is a two-legged figure created as a linked
hierarchy, and designed for animation. The biped skeleton has special
properties that make it instantly ready to animate.
Figure and Keyframe Modes
character studio is
designed to interchange motion and characters. In
you pose the biped to fit your character model. In
you animate the skeleton. Motions created for the biped can be saved
and loaded onto other biped skeletons with different physical characteristics.
For example, you could animate a giant ogre, save the animation,
and load it onto a small child. Motion files are saved in the proprietary character
You can use these files
in a variety of ways with Motion Flow, the Motion Mixer, and the
Crowd tools to combine animation or animate multiple characters.
The biped skeleton has
some properties designed to help you animate faster and more accurately.
- A human structure—Joints
on the biped are hinged to follow human anatomy. By default, the
biped resembles a human skeleton and has a stable inverse kinematics
hierarchy. This property means that when you move a hand or foot,
the corresponding elbow or knee orients itself accordingly, and
produces a natural human posture.
- Customizable for non-human
structures—The biped skeleton can easily be made to work
with a four-legged creature or an animal that naturally leans forward,
such as a dinosaur.
- Natural rotations—When
you rotate the biped spine, the arms maintain their relative angle
to the ground, rather than behaving as though fused to the shoulders.
For example, take a biped in a standing position, with arms hanging
at its sides. If you rotate the spine forward, the fingers touch
the ground rather than pointing behind it. This position is more
natural for the hands, which speeds the process of keyframing the
biped. This feature also applies to the biped head. When you rotate
the spine forward, the head maintains a forward-looking orientation.
- Designed for footsteps—The
biped skeleton is specially designed to animate with character studio footsteps,
which help solve the common animation problem of locking the feet
to the ground. Footstep animation also provides an easy way to rough
out animation quickly. See the section