[ODE] Friction trouble, possibly a bug? ( was: problem with dBodyAddRelForce. help, I'm desperate )

asko asko at jetti.org
Sat Aug 2 04:36:02 2003


It doesn't seem to make any difference wether I use the default
approximation or the friction pyramid one, the problem exists as long as
there is enough friction to slow down the box.


----- Original Message ----- 
From: "Martin C. Martin" <martin@metahuman.org>
To: <ode@q12.org>
Sent: Saturday, August 02, 2003 6:19 AM
Subject: Re: [ODE] Friction trouble, possibly a bug? ( was: problem with
dBodyAddRelForce. help, I'm desperate )


> > The more friction is involved, the less correct the path is. However,
> > this whole
> > problem only appears when the box is heading to a direction other than
> > n*45.
> > So if the box heading to 0, 45, 90, 135, 180, 225, 270 or 315 it'll work
> > as
> > expected.
>
> Which friction model are you using?  The one that approximates the
> friction cone (whose cross section is a circle, i.e. the same in all
> directions) with a pyramid?
>
> - Martin