[ODE] Improvement suggestions?

[Gary R. Van Sickle]

> Hello,
>
> I'm the author of "Porrasturvat - Stair Dismount", the game where you have to
> push a guy down the stairs.

You are a GOD, dude! ;-)  A buddy of mine at work sent it to a buddy of his at
his work, and he said that within minutes about a dozen people in his office
were pushing the guy down the stairs.

> If I increase the size of the environment effectively increasing number of
> static but collidable objects in the scene, does it increase the complexity
> much or is most of the cpu usage in the handling of the guy with all his
> joints and so on?

It's my understanding that the algorithm is O(n^3) in the number of "associated"
constraints (i.e. the guy's joints), so the number of constraints will have the
biggest effect.  I'm not entirely sure how efficient collision handling is, but
at worst that's an O(n^2) problem.

--
Gary R. Van Sickle
Brewer.  Patriot.