[ODE] Particles again, no torque on collide

Jacob Ole Juul Kolding dacobi at gmail.com
Thu Aug 17 16:24:33 MST 2006

ok I added dContactApprox1 and that does solves the torque problem, but now
how ever the forward motion will stop after first impact where they will
bounce up and down on that spot.

I tried changing mu. At zero it behaves as before dContactApprox1. and any
value above zero results in bouncing on the spot.

Any ideas?

/Jacob Kolding

On 8/17/06, Jon Watte (ODE) <hplus-ode at mindcontrol.org> wrote:
> Try adding dContactApprox1 to the mode. Otherwise, mu is just a force
> limit (not a friction constant).
> Also, if the movement is mostly up/down, very little torque will
> actually be applied. You can try plotting torque as a vector out from
> the center of the body, to debug visualize (probably offset towards the
> camera, or with Z testing turned off).
> Cheers,
>           / h+
> Jacob Ole Juul Kolding wrote:
> > But one problem still remains.
> > I use spheres for collision and when they collide with a plane (the
> > floor) they bounce ok but no torque is applied.
> >
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