Specifies whether the cluster deformation occurs only when the cluster deformer handle itself is transformed (moved, rotated, or scaled). With Relative on, only transformations to the cluster deformer handle itself cause deformation effects. Transformations to any objects parented to the handle do not cause deformation effects. With Relative off, transformations to objects parented to the cluster deformer handle can cause deformation effects. The Relative attribute was initially set by the Mode creation option when you created the cluster deformer. See Mode in the Cluster Deformer Options.
Specifies the interpolation direction. Use this attribute to correct undesirable discontinuities in the deformation effect when you change cluster weights even by a small amount. The discontinuities occur when the cluster deformer uses an inappropriate interpolation direction to guide the deformation effect. To change the interpolation direction, you can set Angle Interpolation to shortest, closest, positive, or negative. By default, Angle Interpolation is Shortest, which provides the usual rigid skinning deformation effects. The default setting is fine for most situations, but when you encounter discontinuities you can adjust the deformation effect by selecting a positive or negative interpolation.