Here are some example programs to refer to. You are welcome to use pieces of them for your own assignments and/or projects, providing you remember the rules on proper attribution!
Here is the complete list of sample code from last year.
We have provided some example code to help you get started doing 3D user interfaces in OpenGL. You need this for Project 2. It will be very helpful for Checkpoint 4.
Some of this code you are likely to want to use in your own programs, while others, you might just want to look at for ideas.
The README will tell you what's there. You can browse the directory, or download a ZIP file.