[Bf-extensions-cvs] [051770b3] master: glTF exporter: Fix T79104: avoid zero normals when degenerate tris
Julien Duroure
noreply at git.blender.org
Thu Sep 17 18:53:15 CEST 2020
Commit: 051770b36de923a34a023ccd598dd315d2428f3a
Author: Julien Duroure
Date: Thu Sep 17 18:53:03 2020 +0200
Branches: master
https://developer.blender.org/rBA051770b36de923a34a023ccd598dd315d2428f3a
glTF exporter: Fix T79104: avoid zero normals when degenerate tris
===================================================================
M io_scene_gltf2/__init__.py
M io_scene_gltf2/blender/exp/gltf2_blender_extract.py
===================================================================
diff --git a/io_scene_gltf2/__init__.py b/io_scene_gltf2/__init__.py
index 873b844d..24ccb2e0 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, 4, 27),
+ "version": (1, 4, 28),
'blender': (2, 90, 0),
'location': 'File > Import-Export',
'description': 'Import-Export as glTF 2.0',
diff --git a/io_scene_gltf2/blender/exp/gltf2_blender_extract.py b/io_scene_gltf2/blender/exp/gltf2_blender_extract.py
index ca38aa72..5b9e68f5 100755
--- a/io_scene_gltf2/blender/exp/gltf2_blender_extract.py
+++ b/io_scene_gltf2/blender/exp/gltf2_blender_extract.py
@@ -348,6 +348,12 @@ def __get_normals(blender_mesh, key_blocks, armature, blender_object, export_set
ns[:] = __apply_mat_to_all(normal_transform, ns)
__normalize_vecs(ns)
+ for ns in [normals, *morph_normals]:
+ # Replace zero normals with the unit UP vector.
+ # Seems to happen sometimes with degenerate tris?
+ is_zero = ~ns.any(axis=1)
+ ns[is_zero, 2] = 1
+
# glTF stores deltas in morph targets
for ns in morph_normals:
ns -= normals
More information about the Bf-extensions-cvs
mailing list