1 mesh collider vs several?

Unity Engine
1

So, is the cost of a mesh collider determined by the number of triangles or does it not really matter? I’m trying to decide if I should break up certain meshes for culling, but I don’t want a huge performance hit using several mesh colliders.

Then again… I thought I remebered hearing you could apply a one collider to a group of child objects. I don’t know if that applies to a mesh collider though. Is there a max number of verts or triangles for mesh colliders?

2

Mesh colliders have the same vertex limitations as meshes used for display. You can apply primitive colliders to children, which makes them into a compound collider that acts as a single collider on the parent.

–Eric

3

Thanks for reply! I cannot go that route though because of the geometry. The primitives sadly wouldn’t cut it in this case.