[ODE] Stability problems

[Tobias Thorsen]

hmm...
I am using variable step sizes... but it happens even if my system runs a
stable 60fps. The step size will never be larger than 1/30.

Tobias

----- Original Message -----
From: "Clint Brewer" <clint@haptek.com>
To: "Tobias Thorsen" <tobias@chaseace.com>
Sent: Wednesday, February 19, 2003 9:23 AM
Subject: Re: [ODE] Stability problems


> hi Tobias,
> I had wierd things happening before I set up ode to be "stepped" at a
> constant interval. Things would look just fine, then all of a sudden
> things would start bouncing for apparently no reason.
>
> but this wasn't exploding like you describe, so probably not the same
> problem.
> -c
>
>
> Tobias Thorsen wrote:
>
> > Hi there
> >
> > I'm havning some stability problems here. I am running a pretty simple
> > system but sometimes everything just explodes. >From one frame to the
> > other my  dynamic models are blasted of to infinity!
> > I would expect this sort of behaviour if the framerate is low and
> > things get entangled in deep collisions, but thats not really the
> > case. Infact it tend to happen when everything is stable, and models
> > are falling freely, or resting on the ground.
> > I am about to make a hack where i preserve positions of models, detect
> > if they are moved away to infinity and move them back if thats the
> > case. Before i do that, is there anyone who has found silimar
> > behaviour with ODE?
> >
> >
> > Thanks
> > Tobias
>
>
>