BEPUphysics

Norbo wrote:Be sure to call the drawer's Update method too.

Thank you! Calling Update did the trick!

One more question: how come the renderer manages to draw the collision meshes without Z-fighting? Whenever I put two very similar shaped objects in the same place, I get Z fighting if they have different textures.

I don't recall doing anything tricky to avoid z-fighting, and I feel like I have seen it in the demos before. Whatever situation you happened to be examining might have avoided it by chance