[ODE] Particles

[Gary R. Van Sickle]

> What is a particle? If it's for a particle system, then you 
> probably want to have some extent to the particles. At that 
> point, a sphere with an appropriately small radius is the 
> best way to do it.
> 
> Actually, the difference in math between particle and sphere 
> is so small that using spheres with millimeter radius should 
> be fine, even if you want "point" particles.

Well, a particle doesn't have angular momentum, so there's actually a pretty
big difference.  While what you suggest could probably be made to work, I'd
just roll my own.  Then again, if you want them to actually interact with
the other bodies....

-- 
Gary R. Van Sickle