[ODE] contact joint problem

[Jon Watte (ODE)]

No, really, I didn't make it up. It's in the documentation:

1. Go to http://www.ode.org/

2. Click "docs"

3. Click "here is the latest"

4. Search for "rolling" -- this leads you to section 12.13, which 
explains (among other things) why an object will roll when force is 
applied to the center of the object and it has contact with the ground.

Cheers,

			/ h+




kave Aryan wrote:
> Hi,
> I didn't find anything about "rolling friction" and
> "the difference between slipping and rolling" in ode
> documentation.
> But I think, in my simulation, if I force the ball, it
> would slip and it doesn't roll, because of force
> vector direction.
> Therefore, problem still exists: surface.mu is
> infinity, but ball still rolls when forced.
> Note that "bouncy" bit in surface.mode is set. (and
> only that bit)
> 
> 
> --- "Jon Watte (ODE)" <hplus-ode at mindcontrol.org>
> wrote:
> 
> 
>>>As you see contact.surface.mu is set to dInfinity,
>>
>>but
>>
>>>when ball is forced it moves on the filled,
>>>It should not slip ever, but slips, 
>>>Why?Any body knows the resion?
>>
>>Rotation and slip are two different things. You
>>should do a "find" in 
>>the ODE documentation for "rolling friction" and
>>you'll see a better 
>>explanation.
>>
>>Cheers,
>>
>>			/ h+
>>
>>
> 
> 
> 
> 
> 	
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