I did not found suitable method with Octree to get interectsMesh. As I guess it should be possible to use octree optimization for interectsMesh.
I have a scene with a lot of meshes, and when I run interectsMesh() to every mesh with my target, it took too much time. I think it should be much faster if we will first check intersects with the Octree groups.
But even Octree does not contain such a method, maybe it has some way to get bounding info of every block? Or this task is out of scope for Octree?
Hello! You can check a bounding sphere’s intersection with the octree: Octree | Babylon.js Documentation (babylonjs.com)
Yep, but it’s just a special case, I looking for check by bounding box.
In my case I have very long cone and use sphere intersection is not best case.
Sphere around the cone looking like this:
Oh I see, unfortunately we only have sphere selection currently
Ok, so it’s probably target to next PR 
And one question more, does exist some opportunity to visalize current octree? Via Inspector for example?
We also don’t have that currently it would be an amazing contribution 
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