Checking if a non-walkable layer is blocking the path? (NavMeshAgent)

Hi.

I would like to check if a NavMeshAgent's path is being blocked by an object that is not walkable for that particular NavMeshAgent.

There are a few ways this could be possible, but I don't want to do unless I really have to:

• Putting a trigger collider to each of the obstacles, tag them, and have an OnTrigger function running on the AI at all times

• Shooting a ray from each obstacle and check if it hit the AI

• Checking the distance between the obstacle and the AI at all times

If the Unity's navigation system already has a way of checking that, please let me know. Otherwise I'd love to hear your ideas/solutions.

Thanks in advance!