From 78b128bdff52e944ac771815690e5ac5e58c1c4f Mon Sep 17 00:00:00 2001
From: Xingwei Zhu <etzhu192@hotmail.com>
Date: Sat, 7 May 2022 15:55:10 +0800
Subject: [PATCH] refine code

---
 com.unity.uiwidgets/Editor/UIWidgetsEditorPanel.cs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/com.unity.uiwidgets/Editor/UIWidgetsEditorPanel.cs b/com.unity.uiwidgets/Editor/UIWidgetsEditorPanel.cs
index 9bc66f8a..45a43df2 100644
--- a/com.unity.uiwidgets/Editor/UIWidgetsEditorPanel.cs
+++ b/com.unity.uiwidgets/Editor/UIWidgetsEditorPanel.cs
@@ -121,6 +121,10 @@ namespace Unity.UIWidgets.Editor {
                     return;
                 }
                 
+                if (_wrapper.renderTexture == null) {
+                    return;
+                }
+                
                 EditorGUI.DrawPreviewTexture(new Rect(0.0f, 0.0f, width: position.width, height: position.height),
                     image: _wrapper.renderTexture, mat: _uiMaterial);
                 Input_OnGUIEvent(evt: Event.current);