[ODE] rending slider joints

[Floris van Breugel]

Hi,

I was wondering if there was an easy way of rending/drawing/showing 
slider joints between two separated bodies in my simulation so I can 
see what is happening with the joint. If the only way to do this is 
by creating two bodies along the axis of the sliding joint, how do I 
set the bodies' axis to the one I want  (I'm relatively unfamiliar 
with the rotation matrices etc. so some help there would be nice).

Thanks,

- Floris