Margus Ramst wrote:

> > It isn't...the particles are points, with no size. "IPF" stands for
> > Inter-Particle Forces. Basically, each particle is pushed toward or away
> > from it's neighboring particles within the ipf distance, with a force
> > that depends on the distance.
>
> I see. Actually, I think this is sufficient in most cases, especially with
> liquids. As for the "solid" particles - I don't think inter-particle collision
> and deflection would be at all expensive for spherical particles, and
> prohibitively expensive for most other shapes. What physical properties would be
> needed? Collision is easy, deflection and impact energy absorption too, friction
> I'm not so sure about... What else?

What about rotation effects - where as 2 spheres are moving through space they
rotate around an axis and when they collide their subsequent movements, velocities &
rotations depend on both the velocities and rotation axes of the two particles.
--
Bye
Pabs

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