From 94e8f15a245a4f9805dbbfdd1d4e5f209440cd96 Mon Sep 17 00:00:00 2001
From: kovacsv <viktorkovacs@gmail.com>
Date: Wed, 27 Oct 2021 10:04:50 +0200
Subject: [PATCH] Check if the model is empty based on the node hierarchy.

---
 source/model/modelutils.js | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/source/model/modelutils.js b/source/model/modelutils.js
index 6cce100..688d3c5 100644
--- a/source/model/modelutils.js
+++ b/source/model/modelutils.js
@@ -47,13 +47,13 @@ OV.FlipMeshTrianglesOrientation = function (mesh)
 
 OV.IsModelEmpty = function (model)
 {
-    for (let i = 0; i < model.MeshCount (); i++) {
-        let mesh = model.GetMesh (i);
-        if (mesh.TriangleCount () > 0) {
-            return false;
+    let isEmpty = true;
+    model.EnumerateMeshInstances ((meshInstance) => {
+        if (meshInstance.TriangleCount () > 0) {
+            isEmpty = false;
         }
-    }
-    return true;
+    });
+    return isEmpty;
 };
 
 OV.CloneMesh = function (mesh)