Blender to Unity Armature Export Issue #91967

New Issue

Simon thurman · 2021-10-05T15:44:29+02:00

Simon thurman commented

2021-10-05 15:44:29 +02:00

When exporting an armature to Unity using FBX export the transform data for Child bones is exported incorrectly.

As you can see from this image transform position data is showing some strange result - numbers followed by the letter e-(number) In reality any value ending in e-(number) is actually zero. I've tried every method possible to export to FBX and no matter what I try I still get these weird values in Unity? Myself and several other Unity uses all have the same issue with different armatures, so we think it must be somethign to do with Blender export settings? For now we are zero'uing out thsoe valules so not to confuse other colleagues.

Any hep would be greatly appreciated.

Simon

When exporting an armature to Unity using FBX export the transform data for Child bones is exported incorrectly. ![unknown.png](https://archive.blender.org/developer/F10785232/unknown.png) As you can see from this image transform position data is showing some strange result - numbers followed by the letter e-(number) In reality any value ending in e-(number) is actually zero. I've tried every method possible to export to FBX and no matter what I try I still get these weird values in Unity? Myself and several other Unity uses all have the same issue with different armatures, so we think it must be somethign to do with Blender export settings? For now we are zero'uing out thsoe valules so not to confuse other colleagues. Any hep would be greatly appreciated. Simon

Simon thurman commented

2021-10-05 15:44:29 +02:00

Added subscriber: @MajorThurman

Simon thurman commented

2021-10-05 15:45:57 +02:00

To be clear when you change those values with the e-(number) to zero in unity, nothing happens to the model at all, it doesnt move.

Pratik Borhade commented

2022-01-19 11:33:54 +01:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2022-01-19 11:33:54 +01:00

Thanks for the report. Can you please provide sample .fbx file?

Pratik Borhade commented

2022-01-19 11:34:04 +01:00

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

Simon thurman commented

2022-01-20 13:32:10 +01:00

RightHand.fbx

FBX example attached. Import into Unity and check out the finger bone position/rotation values.

Let me know if you need anything else.

Cheers

Si

[RightHand.fbx](https://archive.blender.org/developer/F12812632/RightHand.fbx) FBX example attached. Import into Unity and check out the finger bone position/rotation values. Let me know if you need anything else. Cheers Si

Pratik Borhade commented

2022-04-20 09:10:52 +02:00

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

Pratik Borhade commented

2022-04-20 09:10:52 +02:00

Hi, I think this is a known issue with child objects: #68575 (FBX Known issues & TODO's)

FBX handling of scale/units, and (the biggest culprit) FBX transformation model, especially when it comes the parenting chains (children objects, but also the whole skeleton
thing).

Hi, I think this is a known issue with child objects: #68575 (FBX Known issues & TODO's) > FBX handling of scale/units, and (the biggest culprit) FBX transformation model, especially when it comes the parenting chains (children objects, but also the whole skeleton > thing).

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Blender to Unity Armature Export Issue #91967