So I got back from visiting some friends in Egypt at a small studio there, helping train them in some Maya techniques. As a way to learn we came up with a concept (the 3 images on the left) and then created the shots in 3D (on the right). Actually the whole project from concept to modeling, texturing, animation, lighting and rendering took only 5 days.
The first shot is deep in the heart of some dark factory as all of the machines and gears start churning. The second shot pans up through a systems of gears and pistons and everything comes to life as the camera reaches the top where it all culminates through a tiny whole in the ceiling. The last shot has the contrast of soft sunlight in a simple room as the machines comes up out of a hole in the floor and performs it's might task... pouring a cup of tea.
I cannot claim credit for the modeling (or animation... not shown here) as I was only the Director of that part. But the lighting and shading were done by me in these images as examples of how to work fast and efficiently in 3D to portray the lighting color keys.