From 2cd347f4fa174fc71d04ca93f7a7a7d60f68af40 Mon Sep 17 00:00:00 2001
From: Andrea Catania <info@andreacatania.com>
Date: Fri, 23 Jul 2021 11:54:22 +0200
Subject: Fix GLTF crash when the material is not set.

Sometimes there are meshes that doesn't have materials, so make sure to check this case before extracting the name.
---
 modules/gltf/gltf_document.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/gltf/gltf_document.cpp b/modules/gltf/gltf_document.cpp
index 09bae884b9..30d023606f 100644
--- a/modules/gltf/gltf_document.cpp
+++ b/modules/gltf/gltf_document.cpp
@@ -2796,7 +2796,7 @@ Error GLTFDocument::_parse_meshes(Ref<GLTFState> state) {
 				mat = mat3d;
 			}
 
-			import_mesh->add_surface(primitive, array, morphs, Dictionary(), mat, mat->get_name());
+			import_mesh->add_surface(primitive, array, morphs, Dictionary(), mat, mat.is_valid() ? mat->get_name() : String());
 		}
 
 		Vector<float> blend_weights;
-- 
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