tinybvh's node pool to a MeshTreeTopology. Its root is node 0 and an inner node's children are leftFirst and leftFirst + 1 (slot 1 is unused). Inner nodes are numbered in the order a depth-first walk reaches them.
leftFirst
leftFirst + 1
tinybvh's node pool to a MeshTreeTopology. Its root is node 0 and an inner node's children are
leftFirstandleftFirst + 1(slot 1 is unused). Inner nodes are numbered in the order a depth-first walk reaches them.