void OnDrawGizmos()
{
m_bvh = new BVH <GameObject>();
for (int i = 0; i < transform.childCount; i++)
{
var e = transform.GetChild(i).GetComponent <BoxCollider>();
if (e == null)
{
continue;
}
var bounds = e.bounds;
AABB box = new AABB()
{
min = bounds.min, max = bounds.max
};
Item <GameObject> item = new Item <GameObject>(e.gameObject, box);
m_bvh.Insert(item);
}
Gizmos.color = Color.white;
DrawNode(m_bvh.Root);
}