Maniphest T77815

Meshes parented to bones have an offset in the exported .fbx files.
Confirmed, NormalKNOWN ISSUE
Actions

Assigned To
None
Authored By
Gerardo (kw_lxxi)
Jun 12 2020, 10:47 PM
Tags
  • Add-ons (BF-Blender)
  • Import/Export
Subscribers
Aras Pranckevicius (aras_p)
Dalai Felinto (dfelinto)
Gerardo (kw_lxxi)
Thomas Tsang (t3tsang)
Varo Castaneda (varomix)
Ying Liu (yingliu)

Description

System Information
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 441.66

Blender Version
Broken: version: 2.83.0, branch: master, commit date: 2020-06-03 14:38, hash: rB211b6c29f771
Worked: 2.79

Short description of error
Meshes parented to bones have an offset in the exported .fbx files.

Exact steps for others to reproduce the error
1.- create an armature with 2 bones, and two meshes.
2.- Parent/bone relative each mesh to a bone in pose mode, selecting in only one "keep transform" (to verify it doesn't have effect on the exported .fbx).
2.- Export to .fbx file (uncheck "add leaf nodes").
3.- Import that .fbx to a new scene. You'll notice the offset in some or all of the meshes (that don't happen on 2.79)
[Based on the default startup or an attached .blend file (as simple as possible)]

BONES_PARENTING_TEST.blend660 KBDownload

Related Objects

Event Timeline

Gerardo (kw_lxxi) created this task.Jun 12 2020, 10:47 PM
Philipp Oeser (lichtwerk) edited projects, added Add-ons (BF-Blender), Import/Export; removed BF Blender.Jun 23 2020, 3:10 PM
Richard Antalik (ISS) changed the task status from Needs Triage to Confirmed.Jul 7 2020, 7:05 AM
Bastien Montagne (mont29) changed the subtype of this task from "Report" to "Known Issue".Jul 28 2020, 11:19 AM
Bastien Montagne (mont29) moved this task from Backlog to Long Term on the Add-ons (BF-Blender) board.
Bastien Montagne (mont29) mentioned this in T68575: FBX Known issues & TODO's.
Philipp Oeser (lichtwerk) mentioned this in T60623: Parenting objects to bones causes offset.Sep 5 2020, 12:18 PM
Gerardo (kw_lxxi) added a comment.May 4 2021, 3:59 PM

I have always used parent, "bone relative" without problems in blender 2.79 and prior
If I in 2.8 and above I use instead - parent "bone" (without "relative") I haven't had that issue with the offset in meshes.
Could be "bone relative" be automatically converted to "bone" before exporting to .fbx ?

Omar Emara (OmarSquircleArt) merged a task: T94110: FBX: Export a bird's animations to Unity, the eyes dislocated.Mar 8 2022, 10:29 AM
Omar Emara (OmarSquircleArt) added a subscriber: Thomas Tsang (t3tsang).
Dalai Felinto (dfelinto) added a subscriber: Dalai Felinto (dfelinto).Sep 30 2022, 10:30 AM
Ying Liu (yingliu) added a subscriber: Ying Liu (yingliu).Sep 30 2022, 8:47 PM
Varo Castaneda (varomix) added a subscriber: Varo Castaneda (varomix).Oct 6 2022, 11:29 PM
Aras Pranckevicius (aras_p) added a subscriber: Aras Pranckevicius (aras_p).Oct 10 2022, 8:00 PM