Refining a mesh object increases the number of editable faces, providing additional
control over fine modeling details. To preserve program memory, you can refine specific
faces instead of the entire object.

Refining an object resets the smoothing level that was assigned to the object to 0
(zero). This level of smoothness becomes the new baseline for the object. That is,
the smoothness level can no longer be decreased beyond that level. Refining a subobject
does not reset the smoothing level.

The following prompts are displayed.

Mesh object or face subobjects to refine

Specifies 3D mesh objects or mesh faces to be refined. Press Ctrl+click to isolate
a specific face.