Extrusion is very common command which has been used within 3D Studio Max, AutoCAD and almost in all other 3D or 2D Software. We can extrude polygon faces, polygon vertices, polygon edges, polygons, Nurbs Curves, CV curves, and surfaces. Extrusion gives us a quite new element like new faces of polygon, new edges of polygon, new vertices of polygon nut with Nurbs curves extrude command gives us a complete new surface. In this tutorial you are going to create a new surface from only two curves. Extrude along curve command is used in vehicle modeling frequently.
