Error exporting in FBX format. #78840

New Issue

As · 2020-07-11T20:16:10+02:00

As commented

2020-07-11 20:16:10 +02:00

Operating system: Windows 10 64bit
Graphics card: GTX 1050ti

Broken: all version blender.

Steps to reproduce

uv_error.blend

Open file
Export FBX

UV unwrapping the mesh properly (or just Smart UV project) fixes the issue.

Traceback (most recent call last):
File "D:\Program Files (x86)\Steam\steamapps\common\Blender\2.83\scripts\addons\io_scene_fbx\__init__.py", line 634, in execute
return export_fbx_bin.save(self, context, **keywords)
File "D:\Program Files (x86)\Steam\steamapps\common\Blender\2.83\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 3198, in save
ret = save_single(operator, context.scene, depsgraph, filepath, **kwargs_mod)
File "D:\Program Files (x86)\Steam\steamapps\common\Blender\2.83\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 3094, in save_single
fbx_objects_elements(root, scene_data)
File "D:\Program Files (x86)\Steam\steamapps\common\Blender\2.83\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 2894, in fbx_objects_elements
fbx_data_mesh_elements(objects, me_obj, scene_data, done_meshes)
File "D:\Program Files (x86)\Steam\steamapps\common\Blender\2.83\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 1174, in fbx_data_mesh_elements
elem_data_single_int32_array(lay_uv, b"UVIndex", (uv2idx[uv_id] for uv_id in _uvtuples_gen(t_luv, t_lvidx)))
File "D:\Program Files (x86)\Steam\steamapps\common\Blender\2.83\scripts\addons\io_scene_fbx\fbx_utils.py", line 504, in elem_data_single_int32_array
return _elem_data_single(elem, name, value, "add_int32_array")
File "D:\Program Files (x86)\Steam\steamapps\common\Blender\2.83\scripts\addons\io_scene_fbx\fbx_utils.py", line 451, in _elem_data_single
getattr(sub_elem, func_name)(value)
File "D:\Program Files (x86)\Steam\steamapps\common\Blender\2.83\scripts\addons\io_scene_fbx\encode_bin.py", line 161, in add_int32_array
data = array.array(data_types.ARRAY_INT32, data)
File "D:\Program Files (x86)\Steam\steamapps\common\Blender\2.83\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 1174, in <genexpr>
elem_data_single_int32_array(lay_uv, b"UVIndex", (uv2idx[uv_id] for uv_id in _uvtuples_gen(t_luv, t_lvidx)))
KeyError: ((nan, nan), 490)

location: <unknown location>:-1

Operating system: Windows 10 64bit Graphics card: GTX 1050ti Broken: all version blender. **Steps to reproduce** [uv_error.blend](https://archive.blender.org/developer/F8713279/uv_error.blend) - Open file - Export FBX UV unwrapping the mesh properly (or just Smart UV project) fixes the issue. ``` Traceback (most recent call last): File "D:\Program Files (x86)\Steam\steamapps\common\Blender\2.83\scripts\addons\io_scene_fbx\__init__.py", line 634, in execute return export_fbx_bin.save(self, context, **keywords) File "D:\Program Files (x86)\Steam\steamapps\common\Blender\2.83\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 3198, in save ret = save_single(operator, context.scene, depsgraph, filepath, **kwargs_mod) File "D:\Program Files (x86)\Steam\steamapps\common\Blender\2.83\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 3094, in save_single fbx_objects_elements(root, scene_data) File "D:\Program Files (x86)\Steam\steamapps\common\Blender\2.83\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 2894, in fbx_objects_elements fbx_data_mesh_elements(objects, me_obj, scene_data, done_meshes) File "D:\Program Files (x86)\Steam\steamapps\common\Blender\2.83\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 1174, in fbx_data_mesh_elements elem_data_single_int32_array(lay_uv, b"UVIndex", (uv2idx[uv_id] for uv_id in _uvtuples_gen(t_luv, t_lvidx))) File "D:\Program Files (x86)\Steam\steamapps\common\Blender\2.83\scripts\addons\io_scene_fbx\fbx_utils.py", line 504, in elem_data_single_int32_array return _elem_data_single(elem, name, value, "add_int32_array") File "D:\Program Files (x86)\Steam\steamapps\common\Blender\2.83\scripts\addons\io_scene_fbx\fbx_utils.py", line 451, in _elem_data_single getattr(sub_elem, func_name)(value) File "D:\Program Files (x86)\Steam\steamapps\common\Blender\2.83\scripts\addons\io_scene_fbx\encode_bin.py", line 161, in add_int32_array data = array.array(data_types.ARRAY_INT32, data) File "D:\Program Files (x86)\Steam\steamapps\common\Blender\2.83\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 1174, in <genexpr> elem_data_single_int32_array(lay_uv, b"UVIndex", (uv2idx[uv_id] for uv_id in _uvtuples_gen(t_luv, t_lvidx))) KeyError: ((nan, nan), 490) location: <unknown location>:-1 ```

As commented

2020-07-11 20:16:10 +02:00

Added subscriber: @HandsomeSerj

Richard Antalik commented

2020-07-13 18:59:46 +02:00

Added subscriber: @iss

Richard Antalik commented

2020-07-13 18:59:46 +02:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Richard Antalik commented

2020-07-13 18:59:46 +02:00

Please upload sample file.

As commented

2020-07-14 07:26:05 +02:00

Removed subscriber: @HandsomeSerj

As commented

2020-07-14 07:28:54 +02:00

Changed status from 'Needs User Info' to: 'Confirmed'

Richard Antalik commented

2020-07-14 20:47:14 +02:00

Changed status from 'Confirmed' to: 'Needs User Info'

Richard Antalik commented

2020-07-14 20:47:14 +02:00

Please upload sample file. I can not confirm this without sample file

Emir Sinan Gürlek commented

2020-07-22 09:15:57 +02:00

Added subscriber: @filibis

Emir Sinan Gürlek commented

2020-07-22 09:15:57 +02:00

Changed status from 'Needs User Info' to: 'Needs Developer To Reproduce'

Emir Sinan Gürlek commented

2020-07-22 09:15:57 +02:00

I just got this bug as well. Here is a simple file: uv_error.blend
UV unwrapping the mesh properly (or just Smart UV project) fixes the issue.

This error occurs in both 2.83.2 and 2.90 versions.

I just got this bug as well. Here is a simple file: [uv_error.blend](https://archive.blender.org/developer/F8713279/uv_error.blend) UV unwrapping the mesh properly (or just Smart UV project) fixes the issue. This error occurs in both 2.83.2 and 2.90 versions.

Richard Antalik commented

2020-07-23 05:25:22 +02:00

Changed status from 'Needs Developer To Reproduce' to: 'Confirmed'

Bastien Montagne commented

2020-07-27 11:59:03 +02:00

Added subscriber: @mont29

Bastien Montagne commented

2020-07-27 11:59:03 +02:00

Changed status from 'Confirmed' to: 'Needs User Info'

Bastien Montagne commented

2020-07-27 11:59:03 +02:00

This is not an FBX issue, UVs should never have invalid values like nan (means 'not a number', and is used to materialize invalid ones, like e.g. the result of 1/0...).

So unless you can provide us with a way to reproduce such data corruption in Blender, we cannot do anything here.

This is not an FBX issue, UVs should **never** have invalid values like `nan` (means 'not a number', and is used to materialize invalid ones, like e.g. the result of `1/0`...). So unless you can provide us with a way to reproduce such data corruption in Blender, we cannot do anything here.

Bastien Montagne commented

2020-08-03 12:27:40 +02:00

Changed status from 'Needs User Info' to: 'Archived'

Bastien Montagne closed this issue

2020-08-03 12:27:40 +02:00

Bastien Montagne self-assigned this 2020-08-03 12:27:40 +02:00

Bastien Montagne commented

2020-08-03 12:27:40 +02:00

More than a week without answers, closing.

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Error exporting in FBX format. #78840