shapes2.inc

Tetrahedron: 4-sided regular polyhedron.
Octahedron: 8-sided regular polyhedron.
Dodecahedron: 12-sided regular polyhedron.
Icosahedron: 20-sided regular polyhedron.
Rhomboid: Three dimensional 4-sided diamond, basically a sheared box.
Hexagon: 6-sided regular polygonal solid, axis along x.
HalfCone_Y: Convenient finite cone primitive, pointing up in the Y axis.
Pyramid: 4-sided pyramid (union of triangles, can not be used in CSG).
Pyramid2: 4-sided pyramid (intersection of planes, can be used in CSG).
Square_X, Square_Y, Square_Z: Finite planes stretching 1 unit along each axis. In other words, 2X2 unit squares.