When anatomical accuracy is required, it is necessary to supplement joint weighting with auxillary tools. Joint weights determine what percentage of a rotational arc a vertex receives as joints rotate. In reality, however, where anatomical deformation is driven by muscle, tendons, fat and bones, any region of flesh surrounding a joint will not move on pure arcs. When rotating your own elbow or knee to their extreme positions, for example, the flesh on the inside of the arc compresses, bulges and slides, while the flesh on the outside of the arc is pushed outward by the protrusion of bone and cartilege. In this video we look at how Smooth Skin Influence Objects can be utilized to achieve these types of natural deformations using an intuitive and quick workflow.