From 3bb7d4b975658caa1d7ea720cceb1990d998daf4 Mon Sep 17 00:00:00 2001
From: Takahiro <hogehoge@gachapin.jp>
Date: Mon, 25 Dec 2017 22:38:23 +0900
Subject: [PATCH] Fix GLTFExporter cachedData check

---
 examples/js/exporters/GLTFExporter.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/examples/js/exporters/GLTFExporter.js b/examples/js/exporters/GLTFExporter.js
index 8a7c37eb81..2f6a337cbe 100644
--- a/examples/js/exporters/GLTFExporter.js
+++ b/examples/js/exporters/GLTFExporter.js
@@ -396,7 +396,7 @@ THREE.GLTFExporter.prototype = {
 		 */
 		function processImage( map ) {
 
-			if ( cachedData.images[ map.uuid ] ) {
+			if ( cachedData.images[ map.uuid ] !== undefined ) {
 
 				return cachedData.images[ map.uuid ];
 
@@ -507,7 +507,7 @@ THREE.GLTFExporter.prototype = {
 		 */
 		function processMaterial( material ) {
 
-			if ( cachedData.materials[ material.uuid ] ) {
+			if ( cachedData.materials[ material.uuid ] !== undefined ) {
 
 				return cachedData.materials[ material.uuid ];
 
-- 
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