From b14bee084ba2ebe441fc7834e94bfb8de5e4bbf5 Mon Sep 17 00:00:00 2001
From: Tom Fili <tfili@agi.com>
Date: Fri, 24 Jun 2016 15:47:49 -0400
Subject: [PATCH] Sped up deleting of custom data from a QuadtreeTile.

---
 Source/Scene/QuadtreeTile.js | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/Source/Scene/QuadtreeTile.js b/Source/Scene/QuadtreeTile.js
index 8fcd19694427..5bce6f21acf5 100644
--- a/Source/Scene/QuadtreeTile.js
+++ b/Source/Scene/QuadtreeTile.js
@@ -143,16 +143,10 @@ define([
         var rectangle;
 
         if (defined(added) && defined(removed)) {
-            // level zero tile
-            for (i = 0; i < removed.length; ++i) {
-                data = removed[i];
-                for (var j = 0; j < customData.length; ++j) {
-                    if (customData[j] === data) {
-                        customData.splice(j, 1);
-                        break;
-                    }
-                }
-            }
+            customData = customData.filter(function(value) {
+                return removed.indexOf(value) === -1;
+            });
+            this._customData = customData;
 
             rectangle = this._rectangle;
             for (i = 0; i < added.length; ++i) {