Extrude Lets you perform manual extrusion via direct manipulation in the viewport. Click this button, and then drag vertically on any polygon to extrude it. Extruding polygons moves them along a normal and creates new polygons that form the sides of the extrusion, connecting the selection to the object. Following are important aspects of polygon ..
Editable Poly is an editable object with five sub-object levels: vertex, edge, border, polygon, and element. Its usage is similar to that of an editable mesh object, with controls for manipulating an object as a polygon mesh at various sub-object levels. Rather than triangular faces, however, the poly object’s faces are polygons with any number ..