2.4.1 Finite Solid Primitives

There are fourteen different solid finite primitive shapes: blob, box, cone, cylinder, height field, Julia fractal, lathe, prism, sphere, spheresweep, superellipsoid, surface of revolution, text object and torus. These have a well-defined inside and can be used in CSG (see section "Constructive Solid Geometry"). They are finite and respond to automatic bounding. You may specify an interior for these objects.