sketchy behaviour

For the next 2 weeks I am learning Pro/Engineer, a 3-dimensional CAD program. I started with some simple mechanisms and have made it to a sketch of a pencil by the end of the first day (click on the picture to see a close-up).

With a few colours and patterns added, even a background and lighting, suddenly it looks a lot more realistic. (If you look closely, you can see the letters are even "carved" into the wood.)