
44 ◾ Essential Skills for 3D Modeling, Rendering, and Animation
Extrusions also let you take simple shapes, such as our 2D staircase in
Figure2.17, and pull them out to 3D shells, such as in Figure2.18. is is
the best way to make simple 3D objects with non- uniform shapes (like
those stairs).
Combining and Merging Multiple Polygon Objects
us far in our learning of polygons, we have been dealing with objects
that are all connected. is ...