From e346fa1dca168a33097048f51c308775eb004865 Mon Sep 17 00:00:00 2001
From: Wojtek Figat <wojtek@figat.pl>
Date: Mon, 18 Jul 2022 19:40:37 +0200
Subject: [PATCH] Fix material editor preview error

#704
---
 Source/Editor/Viewport/Previews/MaterialPreview.cs | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/Source/Editor/Viewport/Previews/MaterialPreview.cs b/Source/Editor/Viewport/Previews/MaterialPreview.cs
index 43d4cf3e2..bc1cb77f2 100644
--- a/Source/Editor/Viewport/Previews/MaterialPreview.cs
+++ b/Source/Editor/Viewport/Previews/MaterialPreview.cs
@@ -188,11 +188,12 @@ namespace FlaxEditor.Viewport.Previews
             }
 
             // Surface
-            if (_previewModel.Model == null)
-                throw new Exception("Missing preview model asset.");
-            if (_previewModel.Model.WaitForLoaded())
-                throw new Exception("Preview model asset failed to load.");
-            _previewModel.SetMaterial(0, surfaceMaterial);
+            if (_previewModel.Model != null)
+            {
+                if (_previewModel.Model.WaitForLoaded())
+                    throw new Exception("Preview model asset failed to load.");
+                _previewModel.SetMaterial(0, surfaceMaterial);
+            }
             _previewModel.IsActive = usePreviewActor;
 
             // PostFx