[ODE] Implementing new friction models

[Amund Børsand]

I assure you that if I ever get to the bottom of this the way I hope
(i.e. get Pajecka working and implemented with the current ODE collision
system) I will surely submit the code for inclusion in ODE cvs. It's the
least I can do to say thanks... (Unless the Pajecka formula itself is
under some kind of copyright restriction, I've found frighteningly
little info on it on the net)


"Megan Fox" <shalinor at circustent.us> skreiv:

> If you get any off-list replies on this, I would appreciate a CC on anything
> particularly useful.  I'm a little unhappy with the default friction model
> (well, almost entire lack of friction model) as well, and I'd really rather
> stick the code in a modified ODE than attempting to strap it on externally.
> 
> Thanks,
> 
> -Megan Fox
> 
> > Is there an easy way to do it, into ODE's internal structure? I'm
> > thinking about Pajecka and the likes, for tyre friction. My best idea so
> > far has been to set normal friction coefficients to 0 and let the ODE
> > collision system/contact joints to carry the weight if the object, and
> > then calculating what forces are pushing in different direction and
> > applying these back to the objects in question. But this will get very
> > dirty when my tires hit multiple objects at the same time, which they
> > will, as I am trying to make an offroad biased vehicle simulator.
> >
> > How are the current friction models implemented, how do they "know" what
> > angles the surfaces in question have and so on? I guess I should look
> > into the ODE sources myself, could you point me in the right
> > direction/right source file? I have very little knowledge of the ODE
> > internals so far.
> >
> > --
> > Amund Børsand <amund £ offroad . no>
> >
> >
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> > ODE at q12.org
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> >
> >
> 

-- 
Amund Børsand <amund £ offroad . no>