OptionalcenterAn index of node which is used as a root of center space.
OptionalcolliderIndices of ColliderGroups that detect collision with this spring.
OptionalextensionsOptionalextrasJoints of the spring. Except for the first element, a previous joint of the array must be an ancestor of the joint.
OptionalnameName of the Spring
A bone group of VRMCSpringBone.