From 76f074f86657794ac3d7b1389916cdfdc3ebaef6 Mon Sep 17 00:00:00 2001
From: Nathan Vegdahl <cessen@cessen.com>
Date: Sat, 16 Jul 2016 15:10:07 -0700
Subject: [PATCH] Added a TODO comment.

---
 src/bvh.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/bvh.rs b/src/bvh.rs
index b074fb5..d8a88d6 100644
--- a/src/bvh.rs
+++ b/src/bvh.rs
@@ -228,6 +228,8 @@ impl BVH {
                     axis
                 };
 
+                // TODO: use a select algorithm like introselect instead of a
+                // full sort.
                 sort_by(objects,
                         &|a, b| {
                     let tb_a = lerp_slice(bounder(a), 0.5);