More info on the NavigationOctree

Hi, I’m trying to understand the navigation octree, there seems to be very little about it in documentation or just searching.

I’m trying to figure out if for 3D navigation (flying AI) if I can utilize the Navigation Octree, I’ve seen several approaches where people seemed to roll there own, but I’d like to leverage as much of the current engine as possible.

When I generate a Navigation Octree with a simple map with several cubes in the air and one on the ground, when I look at the NavigationOctree it generates only the RootNode with an element for every cube in the scene, and no children. I’d expect to find children nodes for all of the spaces with cubes.

Can anyone explain to me what the NavigationOctree represents? Is it adaptable to 3D navigation? Thanks!