In this chapter, we learned how to do conversions between 2D and 3D models, starting with the four commands used for 2D-to-3D conversion, which are Extrude, Revolve, Sweep, and the Loft command. We learned about the details of each command and the key differences between them. After that, we looked at the opposite scenario, which is creating a 2D shot from a 3D model using the Flatshot command.

After covering different methods of creating 3D objects, in the next chapter, the modify commands will be discussed, starting with the conventional 2D modify commands that can also be used with 3D objects (albeit with some limitations), then moving to the specialized 3D modify commands.