From cad4a1f368cfe78292af55804d8de194c1e4ae8b Mon Sep 17 00:00:00 2001
From: ousttrue <oustrrue@gmail.com>
Date: Mon, 9 Apr 2018 02:33:26 +0900
Subject: [PATCH] add nullCheck

---
 Scripts/BlendShape/PreviewSceneManager.cs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Scripts/BlendShape/PreviewSceneManager.cs b/Scripts/BlendShape/PreviewSceneManager.cs
index 0c5a1cd22..07bc8e0eb 100644
--- a/Scripts/BlendShape/PreviewSceneManager.cs
+++ b/Scripts/BlendShape/PreviewSceneManager.cs
@@ -92,6 +92,7 @@ namespace VRM
             var map = new Dictionary<Material, Material>();
             Func<Material, Material> getOrCreateMaterial = src =>
             {
+                if (src == null) return null;
                 Material dst;
                 if(!map.TryGetValue(src, out dst))
                 {