[ODE] box-box collisions

[Russ Smith]

> This sounds like it doesn't bode well for any sort of "collision
> anti-aliasing" schemes, i.e. preventing a fast-moving small object
> from going right through a wall.  Are you saying here that even if a
> suitable collision point was found, the fact that it was by definition
> outside the collision volume (because there is none) would prevent it
> from being properly taken into account?

i'm not quite sure i understand the question - what i was saying is that
more stable dynamics results when the contact point is inside the
intersection volume. if your objects don't collide, there is no
intersection volume and thus ODE won't generate a contact point. if you
generate one anyway for fast moving objects (e.g. projecting the object
along its path) the contact constraint will still act in the same way,
but finding a contact position that will give you consistent stability
is going to be a problem.

russ.

-- 
Russell Smith
http://www.q12.org