Distorts an object into a spherical shape. This modifier has only one parameter, a Percent spinner that deforms the object, as much as it can, into a spherical shape. The success of the operation depends on the topology of the geometry to which it’s applied. For example, a cylinder with no height segments will result in little change. Adding height segments will result in a barrel at 100 percent, and then adding cap segments will produce a sphere. Try this on a Teapot.
Percent: Set this to specify the percetage of spherical distortion to apply to the object.
The teapot should now be a sphere.