These directly generated objects include the cube, the cone, the cylinder, the sphere, and the torus. They can all be generated as complete or partial objects, which can be solid or surface objects. For each, a variety of drawing options are available which allow the interactive control of the different features of these objects. They are all parametric and can be editied after their generation.
Special types of primitive objects are the paraboloid, hyperboloid, and the hyperbolic paraboloid. They can be drawn and generated as the regular primitives.
A

B