All the lessons are written on top of Tango. I don't have anything against Phobos, but I have Java background so Tango suits me better.
The NeHe Tutorials
1 The old basecode and the first 5 lessons can be found here.
DerelictGLC
The DerelictGLC is a binding for the QuesoGLC, an implementation of the OpenGL Character Renderer specification. The source and DSSS conf can be found here.


