Fun with Splines
•Go to “Exercises” option
•When done with first one, choose “Exercises” again to get new challenge
•Splines use in 2D and 3D geometric graphics for applications from industrial design to entertainment
•Spline curves also critical in CG animation (used to control motion and camera paths, as well as model shape)
http://www.cs.brown.edu/exploratories/freeSoftware/repository/edu/brown/cs/exploratories/applets/bezierSplines/bezier_splines_guide.html