[ODE] Trimesh-Trimesh collision problems

Michael Molkenthin molle at michael-molkenthin.de
Thu Jun 22 03:36:32 MST 2006

Hello list,

i have seen the movie..  on my side, i would even be glad, if my trimeshes 
would do exactly this to each other, because my triangles are 
counter-clockwise and i have to reverse that. :)

also i have seen the test_moving_trimesh.cpp and that the 
setCurrentTransform() calls are commented out via #if 0

Another question rises then to me: Is there a special reason why 
"last_trans" is defined in struct dxGeomData and not in dxGeom ? If there 
are many Geoms-"Instances" of a single GeomData-"Class", they could have 
individual position/rotation but are sharing the same last_trans Value.. ?


On Thu, 22 Jun 2006, Nuno Maltez wrote:

> Hi,
> I'm using ODE 0.6 and having problems with Trimesh - Trimesh
> collisions. It's very strange because the "test_moving_trimesh" that
> comes with ODE works just fine. I made a new test replacing the bunny
> with my trimesh pyramid as an example. It can be downloaded at:
> http://pwp.netcabo.pt/nmfm/ode/test_moving_trimesh.cpp
> and a small video capturing a simulation on my PC
> http://pwp.netcabo.pt/nmfm/ode/movie.wmv
> Maybe it's a problem with my trimesh model, but simple geometries
> collide fine against it (boxes, spheres and capsules). However, when
> the falling pyramid hits the static one, it just gets "kicked" away.
> I also thought it could be some problem with my World parameters or
> with any other ODE settings I do not understand perfectly yet, like
> ContactJoint settings or different stepping functions, but I just
> copied the supplied test_moving_trimesh and my results are still
> weird.
> I would appreciate any help you could provide.
> Thx,
> Nuno
> _______________________________________________
> ODE mailing list
> ODE at q12.org
> http://q12.org/mailman/listinfo/ode

More information about the ODE mailing list