1. Click Shape in the main tool palette.
2. Click Sphere in the lower tool palette.
3. Name the object. Naming objects now makes them easier to select from the command line. This is nice when dealing with a large scene.
4. Set the U Step, V Step, Revolution U, Revolution V and Radius parameters as desired.
5. Click OK to create the shape, or click Cancel to abort.

U Step - The number of vertices circling the sphere. A higher value makes the sphere smoother but may take longer to redraw and render. The minimum number is 3.
V Step - Represents the number of rings this sphere will have. The minimum number is 2.
Revolution U - 360 degrees forms a full sphere.
Revolution V - 180 degrees forms a full sphere from top to bottom.
Radius - The width (x) and height (y) and depth (z) of the finished sphere.