[ODE] How can I modify the grip of the wheels?

[james at 6msoft.com]

> I apologize me for my English
>
> How can I modify the grip of the wheels?
>
> How can I vary the grip of the wheels in relationship to the type of
> ground?_______________________________________________
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I always just attached a pointer to a structure that has a bit more
information (like mu) to each piece of geometry, then in my near collision
function, take the average of the values of the structure from my two
pieces of geometry, and feed that into the collision reaction for each
contact point.

Maybe there is a better way, but not that I found.

-James