[ODE] Trimesh CCylinder collision patch

Panayoti pany2002 at urbansquall.com
Fri Jan 23 11:26:48 MST 2004

As I said, it's not perfect, but it's definitely more stable than the
original box v. trimesh code (ie: the code in 0.39), and I think good
enough to be included with the next ODE distribution (especially, I
feel, that this might result in other people being able to fix any of
the minor problems with Vadim's implementation).

Thanks for the useful patch, Vadim.


Date: Fri, 23 Jan 2004 16:47:59 +1300
From: "Vadim Macagon" <vadim_mcagon at hotmail.com>
Subject: [ODE] Trimesh CCylinder collision patch
To: "ODE List" <ode at q12.org>
Message-ID: <BAY2-DAV19aPs05lRfO0000feea at hotmail.com>
Content-Type: text/plain; charset="iso-8859-1"


The attached patch adds support for trimesh/ccylinder collision,
it only generates one contact point.

The patch was generated against current anon CVS, the zip contains a
makefile.patch that you should extract to the directory where you
out ODE and then apply it. Extract the other files to
and apply the remaining patch. Then rebuild ODE and the trimesh tests
apparently are already setup for ccylinders - you can drop some
by pressing "c")

Panayoti has kindly given it a try already, hope he doesn't mind if I
him :)

"Most of the time they do just fine, but if a capsule appears in the
gets thundered into one from stacking, it'll do some weird spinning
action while trying to fight it's penetration."

It'd be nice to see this go into CVS if people think it's good enough to
useful at this stage.



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