How do I edit Mesh Colliders in Unity?

Sometimes you want to make colliders that are less geometrically complicated than your 3d models. Unity gives you a few easy options, such as Box or Capsule colliders.

colliders

These are pretty easy to use, edit, and position.

collidersgif

Making custom, low poly colliders is not as easy as this. I wanted a simple cone shaped collider for this bag so I made it in Blender really quickly.

cone collider

Placing this directly on my GameObject did not allow me to scale it properly. What did work was to create a child element with a Mesh Collider of my simple cone model. Then I scaled that child.

collider scaling hierarchy

That worked pretty well. Minor adjustments are easy now.