2009
Surface joints Control the position of objects using Surface constraint on
page 3293. The parameters control how the object travels along its assigned
surface.
Path joints Control the positional motion of objects using
Path constraint
on page 3297. The parameters for path joints control how far an object can travel
along its assigned path.
Using Joint Parameters
The way the children behave toward one another is governed by the
inheritance of the transforms down the chain. Setting joint limits on individual
child objects can influence this inheritance. If three children in a row all have
their rotational axes made inactive, they will not be able to rotate, and so a
piece of the chain will appear stiff. Or if only one axis is made active as a
sliding joint, the component can separate in space from the chain.
When you are using an object with a path constraint in an IK chain you might
want the path to appear as if it is part of the IK chain. You achieve this effect
by linking the object using the path constraint and the path to the same
parent. The path object should have no children, and other objects in the IK
chain should be linked to the object using the path constraint.
Inverse Kinematics (IK) | 3467