UV mesh model does not want to export to FBX #109489

New Issue

Oskar Szwajkowski · 2023-06-29T09:56:07+02:00

Oskar Szwajkowski commented

2023-06-29 09:56:07 +02:00

System Information
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 2080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 516.59

Blender Version
Broken: version: 3.6.0, branch: blender-v3.6-release, commit date: 2023-06-27 08:08, hash: c7fc78b81ecb
Worked: 3.5.1

Short description of error
Trying to export a model from uv to fbx and getting an error:
Python: Traceback (most recent call last): File "C:\Program Files\Blender Foundation\Blender 3.6\3.6\scripts\addons\io_scene_fbx\__init__.py", line 661, in execute return export_fbx_bin.save(self, context, **keywords) File "C:\Program Files\Blender Foundation\Blender 3.6\3.6\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 3519, in save ret = save_single(operator, context.scene, depsgraph, filepath, **kwargs_mod) File "C:\Program Files\Blender Foundation\Blender 3.6\3.6\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 3402, in save_single fbx_objects_elements(root, scene_data) File "C:\Program Files\Blender Foundation\Blender 3.6\3.6\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 3199, in fbx_objects_elements fbx_data_mesh_elements(objects, me_obj, scene_data, done_meshes) File "C:\Program Files\Blender Foundation\Blender 3.6\3.6\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 1381, in fbx_data_mesh_elements raise RuntimeError("UV layer %s on %r has invalid UVs containing NaN values" % (uvlayer.name, me)) RuntimeError: UV layer UVMap on bpy.data.meshes['Plane.001'] has invalid UVs containing NaN values

Exact steps for others to reproduce the error

Select mesh
Export to FBX (Selected Object)
Export FBX

**System Information** Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 2080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 516.59 **Blender Version** Broken: version: 3.6.0, branch: blender-v3.6-release, commit date: 2023-06-27 08:08, hash: `c7fc78b81ecb` Worked: 3.5.1 **Short description of error** Trying to export a model from uv to fbx and getting an error: `Python: Traceback (most recent call last): File "C:\Program Files\Blender Foundation\Blender 3.6\3.6\scripts\addons\io_scene_fbx\__init__.py", line 661, in execute return export_fbx_bin.save(self, context, **keywords) File "C:\Program Files\Blender Foundation\Blender 3.6\3.6\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 3519, in save ret = save_single(operator, context.scene, depsgraph, filepath, **kwargs_mod) File "C:\Program Files\Blender Foundation\Blender 3.6\3.6\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 3402, in save_single fbx_objects_elements(root, scene_data) File "C:\Program Files\Blender Foundation\Blender 3.6\3.6\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 3199, in fbx_objects_elements fbx_data_mesh_elements(objects, me_obj, scene_data, done_meshes) File "C:\Program Files\Blender Foundation\Blender 3.6\3.6\scripts\addons\io_scene_fbx\export_fbx_bin.py", line 1381, in fbx_data_mesh_elements raise RuntimeError("UV layer %s on %r has invalid UVs containing NaN values" % (uvlayer.name, me)) RuntimeError: UV layer UVMap on bpy.data.meshes['Plane.001'] has invalid UVs containing NaN values ` **Exact steps for others to reproduce the error** - Select mesh - Export to FBX (Selected Object) - Export FBX

uv-problem.blend

1019 KiB

Oskar Szwajkowski added the

labels 2023-06-29 09:56:08 +02:00

Pratik Borhade commented

2023-06-29 12:18:23 +02:00

hi, thanks for the report. Error raises due to corrupted mesh. Run Mesh.validate , this will fix the invalid geometry.
Not a bug, closing

hi, thanks for the report. Error raises due to corrupted mesh. Run [Mesh.validate](https://docs.blender.org/api/master/bpy.types.Mesh.html#bpy.types.Mesh.validate) , this will fix the invalid geometry. Not a bug, closing

Pratik Borhade closed this issue

2023-06-29 12:18:26 +02:00

Blender Bot added

and removed

labels 2023-06-29 12:18:27 +02:00

Thomas Barlow commented

2023-06-29 13:04:46 +02:00

Specifically, running bpy.data.meshes['Plane'].validate() in the Python Console in Blender while in Object Mode will fix the invalid UVs (it's not the same mesh name as is in the error because you're applying modifiers when exporting, which created a new mesh with the modifiers applied as part of the export process).

This is the part of your mesh with invalid NaN UVs:

If you're able to reproduce creating these invalid NaN UVs (starting from a mesh that does not have any, so exports as FBX without errors) with only Blender's tools, please create a new report with instructions on how to reproduce creating these invalid NaN UVs. Alternatively, if an addon created these invalid NaN UVs, please report it to the author of that addon instead.

Specifically, running `bpy.data.meshes['Plane'].validate()` in the Python Console in Blender while in Object Mode will fix the invalid UVs (it's not the same mesh name as is in the error because you're applying modifiers when exporting, which created a new mesh with the modifiers applied as part of the export process). This is the part of your mesh with invalid NaN UVs: ![image](/attachments/795cad34-8eb8-4c1e-a8c7-d8cb9258fd8b) If you're able to reproduce creating these invalid NaN UVs (starting from a mesh that does not have any, so exports as FBX without errors) with only Blender's tools, please create a new report with instructions on how to reproduce creating these invalid NaN UVs. Alternatively, if an addon created these invalid NaN UVs, please report it to the author of that addon instead.

image.png

468 KiB

Oskar Szwajkowski commented

2023-06-29 21:26:14 +02:00

@Mysteryem thank you for screen! 👍

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UV mesh model does not want to export to FBX #109489