[ODE] Re: Roller-coaster

[Aras Pranckevicius]

> That is a good idea, but realize its not just the normals that are used for
> friction. When sliding an object over a triangle-mesh you might encounter
> collisions with the 'internal edges', even when you discard friction. One
> way to solve this is to handle this is to preprocess the mesh and 'remove'
> the internal triangle-edges from collision detection. This requires some
> non-trivial work.

AFAIK, there was a patch to unstable branch (done by Cyan guys?) that
preprocesses trimeshes and marks "unnecessary" edges (ala GPG4
article). I think it wasn't implemented in all colliders though.

--
Aras 'NeARAZ' Pranckevicius
http://nesnausk.org/nearaz | http://nearaz.blogspot.com