[ODE] Triangle Meshes

[Jeremy]

I compiled ode with both and the behavior was pretty
much the same for either.  Basically my trimesh is a
topologically detailed rounded die (your usualy 6
sided die).  There are regions in the mesh that have
closely located vertices.  Could there be issues in
precision with closely grouped vertices so as to crash
the demo app?


--- Bram Stolk <b.stolk at gmail.com> wrote:

> Are you using gimpact or opcode?
> trimesh vs trimesh in opcode is known to collide
> incorrectly.
> trimesh vs trimesh in gimpact shows better results
> in stanford bunny vs
> stanford bunny.
> Neither of the two should crash.
> 
>   bram
> 
> 
> On 9/10/07, Jeremy <pseudosig at yahoo.com> wrote:
> >
> > Are there known issues with trying to create
> arbitrary
> > collision bodies from triangle meshes?  I have
> created
> > a simple triangle mesh body and exported it as a
> > wavefront obj file.    I converted the wavefront
> > object into two arrays (vertex array and index
> array)
> > that I copy and pasted into the
> > demo_moving_trimesh.cpp.  When the demo is
> compiled
> > and ran, it looks and behavs exactly as I
> expected.  I
> > can crash boxes, cylinders, etc into my model, and
> > they collided properly.  This is all true until I
> > press the 'm' key to create the same body to crash
> > into the static models.  The program hangs, and
> dumps
> > some messages to the terminal (zero length
> Vector4D or
> > something to that effect).
> >
> > Any help would be great!
> >
> >
> >
> >      
>
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> 
> 
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