Still More RB Q's

Unity Engine
1

I thought that OnCollisionEnter would regsiter whenever two colliders intersected, without the need for rigidbodies. However, I have a project now in which I can generate the OnCollisionEnter event only with both colliders and RB’s attached.

Is there a way to get collision events with just colliders, sparing yourself the expense of RB’s?

2

AFAIK, you cannot generate collision without one of the colliders having a rigidbody attached.

3

Gotcha.

That would explain the results I’m getting.

So, at least one collider has to have an associated RB, but the others can be naked to as to save CPU fuel.

Thanks!