7.13.3  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.