[ODE] Rolling edge collisions when the normals between the trimeshtriangles are equal

[Aras Pranckevicius]

> When the ball reaches the edge it rolls over the edge but does not
continue
> in a straight line. It deflects slightly at "right angles" "to the edge"
and
> rolls off the side of the rectangle.

I've observed exactly the same a while ago - we called it "fear the
wireframe" problem :)

I fought it with lots of tuning of CFM/ERP and contacts' SoftCFM/SoftERP.
Plus, a bunch of hacks involving checking triangle/contact normals, etc.


Aras Pranckevicius aka NeARAZ
http://www.gim.ktu.lt/nesnausk/nearaz/