Today in class...

* Fixed-up, improved ray tracer program

* More ray tracing - triangles, ...

* Choose topics from rest of book for each of you...  Choose from among...
  + texture mapping
  + importing objects from graphics programs (3dx max?)
  + data structures for graphics (scene graphs)
  + GLSL
  + More ray tracing tricks - refraction/transparency, 
  + curves/splines
  + modeling - e.g., making a hand shape
  + animation

We'll choose on Tuesday