[Bf-extensions-cvs] [f172f772] blender-v2.93-release: glTF exporter: Fix crash when mesh is not created, without crash

[Julien Duroure]

Commit: f172f77247497c00fd8cf4cefe393175741e5849
Author: Julien Duroure
Date:   Mon May 17 20:28:25 2021 +0200
Branches: blender-v2.93-release
https://developer.blender.org/rBAf172f77247497c00fd8cf4cefe393175741e5849

glTF exporter: Fix crash when mesh is not created, without crash

===================================================================

M	io_scene_gltf2/__init__.py
M	io_scene_gltf2/blender/exp/gltf2_blender_gather_nodes.py

===================================================================

diff --git a/io_scene_gltf2/__init__.py b/io_scene_gltf2/__init__.py
index 299c298f..9c2972be 100755
--- a/io_scene_gltf2/__init__.py
+++ b/io_scene_gltf2/__init__.py
@@ -15,7 +15,7 @@
 bl_info = {
     'name': 'glTF 2.0 format',
     'author': 'Julien Duroure, Scurest, Norbert Nopper, Urs Hanselmann, Moritz Becher, Benjamin Schmithüsen, Jim Eckerlein, and many external contributors',
-    "version": (1, 6, 14),
+    "version": (1, 6, 15),
     'blender': (2, 91, 0),
     'location': 'File > Import-Export',
     'description': 'Import-Export as glTF 2.0',
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_gather_nodes.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_nodes.py
index 383af1d1..5332f4a9 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_nodes.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_nodes.py
@@ -357,6 +357,10 @@ def __gather_mesh_from_nonmesh(blender_object, library, export_settings):
                 blender_mesh_owner = blender_object
                 blender_mesh = blender_mesh_owner.to_mesh()
 
+            # In some cases (for example curve with single vertice), no blender_mesh is created (without crash)
+            if blender_mesh is None:
+                return None
+
         except Exception:
             return None