From cd7092335690c5644c5c75cea23672510fd58ce3 Mon Sep 17 00:00:00 2001
From: Julien Duroure <julien.duroure@gmail.com>
Date: Sat, 6 Nov 2021 09:45:01 +0100
Subject: [PATCH] glTF export: Fix crash when invalid driver
---
io_scene_gltf2/__init__.py | 2 +-
io_scene_gltf2/blender/exp/gltf2_blender_gather_drivers.py | 5 +++++
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/io_scene_gltf2/__init__.py b/io_scene_gltf2/__init__.py
index 41f09df9d..3a279780d 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 SchmithĂĽsen, Jim Eckerlein, and many external contributors',
- "version": (1, 7, 30),
+ "version": (1, 7, 31),
'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_drivers.py b/io_scene_gltf2/blender/exp/gltf2_blender_gather_drivers.py
index 561f246c1..ede6bab2b 100644
--- a/io_scene_gltf2/blender/exp/gltf2_blender_gather_drivers.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_gather_drivers.py
@@ -53,6 +53,11 @@ def get_sk_drivers(blender_armature):
for sk_c in child.data.shape_keys.animation_data.drivers:
# Check if driver is valid. If not, ignore this driver channel
try:
+ # Check if driver is valid.
+ # Try/Except is no more a suffisant check, starting with version Blender 3.0,
+ # Blender crashs when trying to resolve path on invalid driver
+ if not sk_c.is_valid:
+ continue
sk_name = child.data.shape_keys.path_resolve(get_target_object_path(sk_c.data_path)).name
except:
continue
--
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