[ODE] Collision without response (area triggers)

[Ke]

In nearCallback function, ODE does collision detection
and build up a "hard" contact joint if collision
happens. where are the response contact forces
computed ? Inside nearCallback function or
dWorldStep() with LCP solver?
What should we do if we want to read out the contact
forces on each contact?
Thanks.

Ke

--- Nguyen Binh <ngbinh at gmail.com> wrote:

> Write your own nearCallback function. In there you
> will be notified when any
> pairs are colliding. Then you can decide to response
> or not by setting up a
> contact.
> 
> On 7/12/07, Jose Marin <jose_marin2 at yahoo.com.br>
> wrote:
> >
> > Hi.
> >
> > It's possible to create objects (boxes, cylinders,
> etc) in ODE that
> > detects when some other object touches it, or even
> penetrates it, but
> > without responding to this collision?
> >
> > I need to create "area triggers" .
> >
> > When the player touches or enters on one of these
> areas, a collision is
> > detected and one event is sent.
> > I need to allow the player to remain "inside" the
> area trigger, for
> > example, a room, or a plate on the ground.
> >
> > The problem is how to detect that an object it's
> touching or inside
> > another one, but the two objects don't affect one
> each other.
> >
> > Thanks for any tip!
> >
> > Jose
> >
> >
> >
> >
> >
>
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> 
> 
> -- 
> --------------------------------------------------
> Binh Nguyen
> Computer Science Department
> Rensselaer Polytechnic Institute
> Troy, NY, 12180
> --------------------------------------------------
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> ODE mailing list
> ODE at ode.org
> http://ode.org/mailman/listinfo/ode



       
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