The boxes three-mesh-bvh's BVHHelper draws, as corner positions: 8
corners per box (x outermost, then y, then z; min before max), 24 numbers.
A box is drawn when it is a leaf or at depth depth - 1 (the walk stops
there), and, with displayParents, every box above those too. Empty boxes
are skipped. The root is at depth 0, so depth 1 draws the root's box.
The boxes three-mesh-bvh's
BVHHelperdraws, as corner positions: 8 corners per box (x outermost, then y, then z; min before max), 24 numbers. A box is drawn when it is a leaf or at depthdepth - 1(the walk stops there), and, withdisplayParents, every box above those too. Empty boxes are skipped. The root is at depth 0, sodepth1 draws the root's box.