[SDL] NeHe OpenGL tutorials

[David Phillips]

Excellent!  However, I just checked and the file wasn't there.  Is there an
alternate download location?  Thanks.

> I'm working on porting the rest of the NeHe OpenGL tutorials to SDL.
> I've gotten them working up through lesson 25, except for the system
> font tutorials, which aren't portable, and the DirectInput tutorial,
> which doesn't make sense to port.
>
> You can get a sneak peek at them before I finish:
> http://www.libsdl.org/cvs/OpenGL-intro-1.1.0.tar.gz
>
> Most of the tutorials require hardware acceleration.