AF Foundation - Checking camera intersection with GameObjects?

What’s the best method to check the intersection of the device (with camera) and a game object?
As the user moves in AR space I want to trigger actions as they walk through various game objects.

You can use colliders on your Gameobjects and enable “Is Trigger”. Then handle them with
OnTriggerEnter and OnTriggerExit methods. Note that your Session Origin must have a Rigidbody attached.