From 8d6d6b48c3dad5bb244c0bb7bb6097be4ff083eb Mon Sep 17 00:00:00 2001
From: Hill Ma <hillma@google.com>
Date: Mon, 2 Aug 2021 11:58:46 -0700
Subject: [PATCH] Obj: make a predicate more robust.

Since we might encounter invalid input it is a good idea to check the actual
size of the array.
---
 code/AssetLib/Obj/ObjFileImporter.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/code/AssetLib/Obj/ObjFileImporter.cpp b/code/AssetLib/Obj/ObjFileImporter.cpp
index d6232be81..5e2b48e24 100644
--- a/code/AssetLib/Obj/ObjFileImporter.cpp
+++ b/code/AssetLib/Obj/ObjFileImporter.cpp
@@ -468,7 +468,7 @@ void ObjFileImporter::createVertexArray(const ObjFile::Model *pModel,
             }
 
             // Copy all vertex colors
-            if (!pModel->m_VertexColors.empty()) {
+            if (vertex < pModel->m_VertexColors.size()) {
                 const aiVector3D &color = pModel->m_VertexColors[vertex];
                 pMesh->mColors[0][newIndex] = aiColor4D(color.x, color.y, color.z, 1.0);
             }