shadow volumes

Ok, this is my first more sophisticated project.
It presents stencil shadow volumes and vertex and fragment
shaders (written in a very early version of nvidia's Cg).
The code is a total mess, back then I had no real math-class with
overloaded operators etc. . So it ended up in pure C-code that's
totally cryptic and unreadable (even though it's commented ; ) ).

Now to the links:

• download executable here
• and for the impatient ones, some screenshots