2009

NOTE Moving the Spline IK helpers to curl the spline can sometimes cause bones
to rotate or flip unexpectedly. If this happens, you can try choosing a different
upnode object with the IK chain's Pick Upnode option in the IK Solver Properties
rollout (see
Spline IK Solver Rollouts on page 3455), or use a different IK method for
your hierarchy.
Applying a Spline IK Solver
The Spline IK solver can be applied at the time bones are created, or after the
bone structure has already been made.
To apply a spline IK solver when bones are created:
1 Choose Create panel > Systems > Bones.
2 On the IK Chain Assignment rollout, set IK Solver to SplineIKSolver, and
turn on both check boxes: Assign To Children and Assign To Root.
By default, Assign To Root is on automatically when you turn on Assign
To Children.
3 Draw the bone structure as usual. When you right-click to end the bone
creation process, the
Spline IK Solver dialog on page 3452 appears. Set
parameters and click OK.
Inverse Kinematics (IK) | 3447