A Cage for a Body is the physical analogue of a Mesh for a Object. Cages are primitives like points, sticks, spheres, boxes or a difinition of corners, edges and triangles as a polyhedron.
Type Constant Dimensions Rotation axes Corners Edges Faces Point #UBE_CAGE_POINT
0 0 1 0 0 Stick #UBE_CAGE_STICK
1 2 2 1 0 Sphere #UBE_CAGE_SPHERE
3 3 0 0 1 Box #UBE_CAGE_BOX
3 3 8 12 6 Polyhedron #UBE_CAGE_POLYHEDRON
3 3 k l m