Physics Filtering Bug?


I believe I’ve isolated a bug in how Omniverse Create implements collision filtering. I’ve attached a simple usda with three bodies and two collision groups. The body “Box2” is in both collision groups, and, as I understand, should be setup so that it collides with neither “Box1” or “Ground.” However, when simulating in Omniverse Create, “Box2” will collide with “Box1,” which I think is unexpected? Further, if you edit the attached usda file and just swap the order of the PhysicsCollisionGroups in the file, “Box2” will no longer collide with “Box1” (but will collide with “Ground” unexpectedly)

OmniverseFilteringBug.usda (3.3 KB)

Thanks for the report, I will take a look and see what is wrong.