From 164498446aeff0520026cc947a387ab8c8812d7f Mon Sep 17 00:00:00 2001
From: "HuYingzhuo(hugo/hyzboy)" <hyzboy@gmail.com>
Date: Tue, 19 Sep 2023 21:07:07 +0800
Subject: [PATCH] fixed crash in RenderAssignBuffer.cpp because not check
 ubo_mi before use.

---
 src/SceneGraph/RenderAssignBuffer.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/SceneGraph/RenderAssignBuffer.cpp b/src/SceneGraph/RenderAssignBuffer.cpp
index c33b2959..f3d46aa2 100644
--- a/src/SceneGraph/RenderAssignBuffer.cpp
+++ b/src/SceneGraph/RenderAssignBuffer.cpp
@@ -59,6 +59,7 @@ void RenderAssignBuffer::WriteNode(RenderNode *render_node,const uint count,cons
 
     Alloc(count,mi_set.GetCount());
 
+    if(ubo_mi)
     {
         uint8 *mip=(uint8 *)(ubo_mi->Map());