Projector tutorial

This tutorial features a series of examples ordered in increasing complexity. Each example is a single file with comments explaining how to run it.

1. Hello cube: a red cube
2. Hello brick: a red brick
3. Multi-cube: construct an object using multiple templates
4. Object visibility: "blink" an object by hiding and showing it repeatedly
5. Rotating cube: shell script to rotate a red cube
6. Textured brick: a red brick with cracks
7. Surface model: specifying vertices and triangles
8. More examples: in the source under test/