2009

Spring Back Activates Spring Back. Each joint has a rest position. As the joint
moves further from the rest position, an increasingly larger force pulls the
joint back to its rest position, like a spring.
Spring Back (spinner) Sets the rest position for the joint. For rotational joints,
this is the orientation of the joint in degrees; for sliding joints, it's the position
in units. Adjusting this is similar to adjusting the From/To spinners. You see
the orientation/position while performing the adjustment, but when you
release the spinner the object returns to its previous state.
If you're using the HD Solver, you must turn on Show Initial State (Motion
panel > IK Controller Parameters rollout) to see the effect on the geometry
during the adjustment .
Spring Tension Sets the strength of the "spring." Higher values cause the
spring to pull harder as the joint moves further from its rest position. A setting
of 0 turns off the spring; very high settings can turn the joint into a limit
because you can reach the point where the spring is too strong to allow the
joint to move past a certain point.
Damping Applies resistance over a joint's full range of motion or rotation.
Simulates the natural effect of joint friction or inertia. As a joint corrodes,
dries out, or is put under a heavy load, it resists motion along its active axes.
Interactive and Applied IK Rollouts
Inverse Kinematics Rollout
Make a selection. > Hierarchy panel > IK > Inverse Kinematics rollout
The Inverse Kinematics rollout displays different controls based on IK Solvers
applied to the selected hierarchy. IK Solvers are applied to the hierarchies
using the Animation menu.
When an HD IK Solver is applied to an IK chain the Inverse Kinematics rollout
displays the controls described below.
The Inverse Kinematics rollout provides controls for interactive and applied
IK, as well as the controls for the HD Solver (history dependent). Use Apply
IK to calculate an IK solution and generate Transform keys (move, rotate) for
Hierarchy Panel Commands | 3497