public void CreateOctree()
{
octree = new OctTree <BoxObject>(new AABBBoundBox(-5000f * Vector3.one, 5000f * Vector3.one));
for (int i = 0; i < collisionObjects.Count; i++)
{
octree.Insert(collisionObjects[i]);
}
octree.UpdateTree();
int d = octree.GetMaxTreeDepth();
Debug.Log(d + " " + Mathf.Pow(8, d) / (d - 1));
}