From 769b47ed0ea1fd5c480a24b85637e4ba5022a707 Mon Sep 17 00:00:00 2001
From: Kim Kulling <kimkulling@users.noreply.github.com>
Date: Thu, 8 Dec 2022 09:35:11 +0100
Subject: [PATCH] Ensure face pointer is not nullptr

- closes https://github.com/assimp/assimp/issues/4831
---
 code/Common/ScenePreprocessor.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/code/Common/ScenePreprocessor.cpp b/code/Common/ScenePreprocessor.cpp
index c769ec30c..95c63ae1c 100644
--- a/code/Common/ScenePreprocessor.cpp
+++ b/code/Common/ScenePreprocessor.cpp
@@ -142,6 +142,7 @@ void ScenePreprocessor::ProcessMesh(aiMesh *mesh) {
     // If the information which primitive types are there in the
     // mesh is currently not available, compute it.
     if (!mesh->mPrimitiveTypes) {
+        ai_assert(mesh->mFaces != nullptr);
         for (unsigned int a = 0; a < mesh->mNumFaces; ++a) {
             aiFace &face = mesh->mFaces[a];
             switch (face.mNumIndices) {