Render dynamic NavMesh at runtime? (not in simulation)

Hi,
I was wondering if it is possible to get access to the actual navigation mesh to set a material or make it at least visible ingame.
Or is there a way to recreate the process of navmesh generation to get access to a mesh like this?
If the navmesh was static I would have just created a mesh by hand but I’d like to have it with navigation Invokers.
I’d be happy to hear about any suggetions.