fbx file import error if LimbNode has UByte custom property. #104672

New Issue

Pratik Borhade · 2023-06-05T10:59:09+02:00

Pratik Borhade commented

2023-06-05 10:59:09 +02:00

System Information
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 2060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 517.48

Blender Version
Broken: version: 3.5.1, branch: blender-v3.5-release, commit date: 2023-04-24 18:11, hash: e1ccd9d4a1d3

Short description of error
Import error occurs for fbx file that has UByte type node property.

Exact steps for others to reproduce the error

Open blender
File -> Import -> fbx
Import attached fbx file.
Error message will be shown: see error_log.txt

If limb node property data type is Integer, the error doesn't occur.
I confirmed Maya / Houdini can import the fbx file attached.

Thanks!

Originally submitted at: blender/blender#108588

**System Information** Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 2060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 517.48 **Blender Version** Broken: version: 3.5.1, branch: blender-v3.5-release, commit date: 2023-04-24 18:11, hash: `e1ccd9d4a1d3` **Short description of error** Import error occurs for fbx file that has UByte type node property. **Exact steps for others to reproduce the error** 1. Open blender 2. File -> Import -> fbx 3. Import attached fbx file. 4. Error message will be shown: see error_log.txt If limb node property data type is Integer, the error doesn't occur. I confirmed Maya / Houdini can import the fbx file attached. Thanks! Originally submitted at: https://projects.blender.org/blender/blender/issues/108588

attr_ubyte.fbx

14 KiB

Pratik Borhade added the

labels 2023-06-05 10:59:10 +02:00

Pratik Borhade referenced this issue from blender/blender

2023-06-05 11:00:08 +02:00

fbx file import error if LimbNode has UByte custom property. #108588

haruyuki-imai commented

2023-06-05 13:01:43 +02:00

Though I am not sure what LimbNode is actually, I guess it means joint or bone.
I attached ascii fbx file so you can find a LimbNode section and definition of ubyte_attr in it.
The data type is UByte, that is 8 bit Integer type.

LimbNode.txt is an excerpt from the ascii fbx file.

Though I am not sure what LimbNode is actually, I guess it means joint or bone. I attached ascii fbx file so you can find a LimbNode section and definition of ubyte_attr in it. The data type is UByte, that is 8 bit Integer type. LimbNode.txt is an excerpt from the ascii fbx file.

LimbNode.txt

542 B

attr_ubyte.ascii.fbx

8.2 KiB

Thomas Barlow commented

2023-06-06 01:51:29 +02:00

It looks like "Byte" and "UByte" custom properties use the 'Z' (90) data type that the FBX IO addon doesn't currently support. It seems to just be a single byte type which shouldn't be difficult to add.

ufbx thinks 'Z' is size_t rather than a single byte, which I suspect is incorrect, but I will look around to see if I can find any other information.

It looks like "Byte" and "UByte" custom properties use the 'Z' (90) data type that the FBX IO addon doesn't currently support. It seems to just be a single byte type which shouldn't be difficult to add. ufbx thinks 'Z' is `size_t` rather than a single byte, which I suspect is incorrect, but I will look around to see if I can find any other information.

Thomas Barlow referenced a pull request that will close this issue

2023-06-09 00:12:14 +02:00

Fix #104672: FBX Byte type unsupported #104681

Bastien Montagne closed this issue

2023-06-09 14:36:34 +02:00

Blender Bot added the

Status

Resolved

label 2023-06-09 14:36:35 +02:00

Bastien Montagne referenced this issue from a commit

2023-06-09 14:36:35 +02:00

Fix #104672: FBX Byte type unsupported