A constraint that transfers a rotation around one axis of a source.
See: https://github.com/vrm-c/vrm-specification/tree/master/specification/VRMC_node_constraint-1.0_beta#roll-constraint
The object being constrained by the source.
The object constrains the destination.
The weight of the constraint.
Set initial state of the constraint.
Update and apply the constraint.
A constraint that transfers a rotation around one axis of a source.
See: https://github.com/vrm-c/vrm-specification/tree/master/specification/VRMC_node_constraint-1.0_beta#roll-constraint