[ODE] Bug with angular velocity?

Mattias Fagerlund mattias at cambrianlabs.com
Wed Feb 26 04:58:02 2003


Yes, others have seen this, see "11.12. My simple rotating bodies are 
unstable!" in the ODE documentation http://opende.sourceforge.net/ode-
latest-userguide.html

cheers,
m

-----Original Message-----
From: "Michal Bacik" <michal@lonelycatgames.com>
To: "ODE mailing list" <ode@q12.org>
Date: Wed, 26 Feb 2003 11:34:01 +0100
Subject: [ODE] Bug with angular velocity?

> Has someone noticed the problem with body angular velocity, resulting
> in
> float overflow?
> 
> For example, I create a capped cylinder, set zero gravity (no collision
> or
> falling wanted), and apply some force by dBodyAddForceAtPos.
> 
> The body starts to rotate, but the rotation (dxBody::avel) slowly
> raises and
> if something doesn't stop it, it's soon getting to 1e+2, 1e+6, 1e+11,
> 1e+24,
> and then it crashes because of float overflow.
> 
> I wonder if someone else has seen this, or it's only my set-up code
> making
> it (e.g. wrong mass applied...).
> 
> - michal
> 
> 
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