Joints and matrices defining a skin.
The index of the accessor containing the floating-point 4x4 inverse-bind matrices. The default is that each matrix is a 4x4 identity matrix, which implies that inverse-bind matrices were pre-applied.
Indices of skeleton nodes, used as joints in this skin.
The index of the node used as a skeleton root. When undefined, joints transforms resolve to scene root.
Joints and matrices defining a skin.