[ODE] StepFast1 documentation

Wed Apr 23 06:55:02 2003

hi,
yes by a face-face contact i meant a set of point-face contacts.
antonio

"Charles James Leonardo Quarra Cappiello" <charsquarra@hotmail.com> on
23/04/2003 13:43:30

To:    Antonio_Martini@scee.net
cc:
Subject:    Re: [ODE] StepFast1 documentation

why do you obtain face-face contact? that should always be reducible to a
series of point-face and edge-edge contacts

>From: Antonio_Martini@scee.net
>To: ode@q12.org
>Subject: Re: [ODE] StepFast1 documentation
>Date: Wed, 23 Apr 2003 10:17:23 +0100
>
>
>I have been experimenting with this kind of iterative method(in my physics
>engine) for a while a
>i noticed some unacceptable contact jittering in the face->face contact
>cases. Did anyone
>find a similar problem in Ode? it's looks like that to be stable LCP
solver
>should be able to
>solve at least 3 contact points for a face->face contact. this implies
that
>the iterative method should
>solve the contacts between two objects in one single step(sub LCP problem)
>rather that treating all
>the contact points as independent.
>
>
>
>
>
>
>
>"David Whittaker" <david@csworkbench.com>@q12.org on 23/04/2003 06:29:01
>
>Please respond to david@csworkbench.com
>
>Sent by:    ode-admin@q12.org
>
>
>To:    <ode@q12.org>
>cc:
>Subject:    [ODE] StepFast1 documentation
>
>
>Hey everybody,
>
>I posted some documentation on the StepFast1 algorithm on my website at
>http://www.csworkbench.com/stepfast-doc.html .  All constructive criticism
>is welcomed.  Let me know if you want more or less explanation, graphics,
>or anything.  Hmmm, I should probably say a little more about the
>stepsize/iterations/autodisablethreshold relationship.
>
>Russ, I came up with just post-fixing SF1 on the stepfast-1 specific
>functions.... it's a few characters shorter anyway.  Let me know if that
>will/won't work.
>
>David
>
>
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Antonio Martini
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