There appears to be a bug with the collision between boxes and trimesh, at least
in linux. If not an Odejava bug - then one in the CarTerrainExample demo.
Spheres are colliding fine but boxes are not. I thought it was just my
program (a truck on some random terrain) but reviewing the car terrain
demo it seems to affects it as well (hit the boxes then do a U-turn and
look at them - or better just create a box to drop somewhere in the
My efforts to reproduce the problem with the TriMeshExample were not successful
- but the fact that it exists in two demos where large terrain and vehicles are
used seems to indicate a problem. Both demos use different methods to get the
terrain - one is loaded, the other generated.