ChainIK Constraint

A Chain IK constraint allows to inverse the control over a hierarchy of GameObjects in order to provide a manipulation that behaves like a chain. By defining the Root and Tip GameObjects, the Chain IK constraint will be able to find and constrain all GameObjects contained in between.

This constraint implements the FABRIK solver (Forward and Backward Reaching Inverse Kinematic). More details can be found here.

Properties	Description
Weight	The weight of the constraint. If set to 0, the constraint has no influence the elements of the chain while when set to 1, it applies full influence given the specified settings.
Root	The chain hierarchy root GameObject.
Target	The GameObject that affects the constrained chain GameObject hierarchy.
Maintain Target Offset	The offsets (in Position, Rotation or both) between the tip and target objects are maintained when not set to None
Chain Rotation Weight	The weight of rotations applied throughout the chain. A weight of 1 causes the chain to fully reach for it's target goal while a value less then 1 blends current FK rotations in the chain.
Tip Rotation Weight	The weight of the rotation applied to the tip GameObject of the chain. If set to 1, the tip aligns it rotation to the specified target otherwise it blends with it's currently value.
Max Iterations	Max solver iterations performed if tolerance is not met.
Tolerance	Distance tolerance between the target and tip GameObjects. When respected, the solver will stop running even if it's max iteration has not been reached.