Nice, that's what I was searching for, already wanted to write it myself

But the offset_pitch doesn't seem to work here... Changed it to 35, 60, even 350, and the zero position is always nearly horizontal (about 5-10 degrees maybe). Is this a bug or am I just too stupid? :P

Descent is running pretty good with it though (Ignoring the fact that I have to play it in strange positions because the offset_pitch isn't recognized ). But it got some framerate-problems with the software-renderer, especially in the energy-charging areas. There seems to be a OpenGL ES port in work, but it's not complete and the source isn't released to the public up to now so I couldn't try it out yet :/