[ODE] Empty bodies crash with trimesh

Jeff Kershner jeff at jeffkershner.com
Mon Aug 28 12:24:36 MST 2006

My physics geometry for a non-moveable test world is a single node in OSG
with 4 "geometries."   I create these 4 geometries as trimeshes and do not
associate bodies with them.


The problem is that in the NearCallback function, dBodyID b1 and dBodyID b2
are both NULL and dCollide crashes.


I think this has to do with a wall intersecting a floor and both don't have


Do I need to check for b1 and b2 both being null and exit that collision
callback function?


Or is there something else wrong?



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