[ODE] Moving body getting stuck along a wall...

[Brian Bell]

Thanks, it was in fact the mu value that was causing it.

One interesting thing to note though, for people who may run into a similar
situation later, is that if mu is zero for all contacts (including contacts
with the floor), then the ball will not roll, it will simply slide around.
So you have to handle collisions with a bit more intelligence (if you aren't
already), and set a normal looking mu value for collisions with the floor,
but use a zero value for collisions with the walls.

Thanks again for your quick help!
Brian

----- Original Message ----- 
From: "Adam D. Moss" <adam@gimp.org>
To: <ode@q12.org>
Sent: Friday, June 06, 2003 2:58 PM
Subject: Re: [ODE] Moving body getting stuck along a wall...


> Brian Bell wrote:
> > Still though, there are plenty of times where the ball will get stuck on
a
> > wall when it seems like there's no reason for it to.  Am I doing
something
> > horrendously wrong?  The simulation seems to work fine otherwise.  Is
there
> > any way to guarantee that there will ALWAYS be a bounce?
>
> Are you setting the contact points' friction to a very low value?
> (Indeed, since ODE doesn't simulate rolling friction, using
> a mu of zero is probably appropriate, letting just the bounces
> take energy out of a body.)
>
> --Adam
> -- 
> Adam D. Moss   . ,,^^   adam@gimp.org   http://www.foxbox.org/   co:3
> "Responsible parents don't raise kids in West Virginia."
>
> _______________________________________________
> ODE mailing list
> ODE@q12.org
> http://q12.org/mailman/listinfo/ode