From 98e9ace3ef706e6966d5a16f7265686f8c451d9b Mon Sep 17 00:00:00 2001
From: Aaron Franke <arnfranke@yahoo.com>
Date: Wed, 8 Jan 2025 01:02:14 -0800
Subject: [PATCH] GLTF: Don't write unused targetNames on meshes

---
 modules/gltf/gltf_document.cpp | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/modules/gltf/gltf_document.cpp b/modules/gltf/gltf_document.cpp
index 4c999c07e12..c8eaaa0b698 100644
--- a/modules/gltf/gltf_document.cpp
+++ b/modules/gltf/gltf_document.cpp
@@ -3193,9 +3193,11 @@ Error GLTFDocument::_serialize_meshes(Ref<GLTFState> p_state) {
 			primitives.push_back(primitive);
 		}
 
-		Dictionary e;
-		e["targetNames"] = target_names;
-		gltf_mesh["extras"] = e;
+		if (!target_names.is_empty()) {
+			Dictionary e;
+			e["targetNames"] = target_names;
+			gltf_mesh["extras"] = e;
+		}
 		_attach_meta_to_extras(import_mesh, gltf_mesh);
 
 		weights.resize(target_names.size());