From 3cf971e907100469a2b6e2e9e0ee56de9a4c0192 Mon Sep 17 00:00:00 2001
From: Matthias Brenner <mbrenner1406@gmail.com>
Date: Wed, 23 Mar 2022 16:39:21 +0100
Subject: [PATCH] Added ExportSetting to allow HideFlags

---
 Assets/UniGLTF/Runtime/UniGLTF/IO/GltfExportSettings.cs   | 8 ++++++++
 .../UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshExportInfo.cs   | 2 +-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/Assets/UniGLTF/Runtime/UniGLTF/IO/GltfExportSettings.cs b/Assets/UniGLTF/Runtime/UniGLTF/IO/GltfExportSettings.cs
index b29f85d82..b35cfe965 100644
--- a/Assets/UniGLTF/Runtime/UniGLTF/IO/GltfExportSettings.cs
+++ b/Assets/UniGLTF/Runtime/UniGLTF/IO/GltfExportSettings.cs
@@ -1,6 +1,7 @@
 
 
 using System;
+using UnityEngine;
 
 namespace UniGLTF
 {
@@ -45,5 +46,12 @@ namespace UniGLTF
         /// Keep VertexColor
         /// </summary>
         public bool KeepVertexColor;
+
+        /// <summary>
+        /// https://github.com/vrm-c/UniVRM/issues/1582
+        /// 
+        /// Allowed hide flags for MeshFilters to be exported
+        /// </summary>
+        public HideFlags MeshFilterAllowedHideFlags = HideFlags.None;
     }
 }
diff --git a/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshExportInfo.cs b/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshExportInfo.cs
index be80eba52..952cb37f2 100644
--- a/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshExportInfo.cs
+++ b/Assets/UniGLTF/Runtime/UniGLTF/IO/MeshIO/MeshExportInfo.cs
@@ -202,7 +202,7 @@ namespace UniGLTF
             else if (renderer is MeshRenderer mr)
             {
                 var filter = mr.GetComponent<MeshFilter>();
-                if (filter != null && filter.hideFlags == HideFlags.None)
+                if (filter != null && settings.MeshFilterAllowedHideFlags.HasFlag(filter.hideFlags))
                 {
                     if (filter.sharedMesh != null && filter.sharedMesh.vertexCount > 0)
                     {