From 80903754bdf4bbcaa904095fe66001af84bc405c Mon Sep 17 00:00:00 2001
From: dataisland <dataisland@outlook.com>
Date: Sun, 8 Sep 2024 11:03:14 -0500
Subject: [PATCH] Fix invalid access

---
 code/PostProcessing/SortByPTypeProcess.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/code/PostProcessing/SortByPTypeProcess.cpp b/code/PostProcessing/SortByPTypeProcess.cpp
index 48ebbc573..3de1818ff 100644
--- a/code/PostProcessing/SortByPTypeProcess.cpp
+++ b/code/PostProcessing/SortByPTypeProcess.cpp
@@ -167,6 +167,10 @@ void SortByPTypeProcess::Execute(aiScene *pScene) {
         // with the largest number of primitives
         unsigned int aiNumPerPType[4] = { 0, 0, 0, 0 };
         aiFace *pFirstFace = mesh->mFaces;
+        if (!pFirstFace) {
+            continue;
+        }
+
         aiFace *const pLastFace = pFirstFace + mesh->mNumFaces;
 
         unsigned int numPolyVerts = 0;