Use parameters at the Link sub-object level to change how deformation around joints occurs. When a joint in the skeleton bends or rotates, Physique, by default, deforms vertices uniformly on either side of a joint. You can change these defaults by using the tools at the Link sub-object level. For example, you can adjust the amount of skin sliding that occurs along a limb as the limb bends, or change the angle of the crease between the upper arm and chest.
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Select an object that has the Physique modifier applied to it. >
Modify panel > Link sub-object level
The Physique Deformation Spline
The deformation spline displays as a yellow curve that runs through the mesh.
Like a spline object, the deformation spline created by Physique is a continuous curve through several points. While a spline object runs continuously from vertex to vertex, the deformation spline is a smooth curve running from joint to joint. The Bend, Bias, and Tension spinners can change the shape of the curve, much as you can rotate or scale the handles at a spline vertex.
The deformation spline also takes into consideration twisting and scaling of the skeleton’s links. At the Link sub-object level, you take control of the behavior of the deformation spline, and subsequently gain full control of the skin’s behavior relative to the skeleton’s movement.