FBX export suddenly broken #63689

Closed
opened 2019-04-17 21:11:13 +02:00 by Fatih Yilmaz · 19 comments

System Information
Operating system: Windows-10-10.0.17763 64 Bits
Graphics card: GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 391.35

Blender Version
Broken: version: 2.80 (sub 57), branch: master, commit date: 2019-04-16 20:13, hash: 5d8030b8f3
Worked: any version before 2019-03-27

Short description of error
[fbx export of animated and rigged character is broken. hand/arms go nuts. i can change versions just to fix the issue. any earlier version than march 27 still works.]

Exact steps for others to reproduce the error
[i reproduced it with my armature in any case. it only doesnt appear if i export without any animation data or keyframes. if i add a single keyframe and export the character again it gets broken.
I also tried to reimport the broken file to see the results and it seems still broken. however i could see that the armature wasnt broken but the skinning somehow instead(see added picture)]

exported:
broken.PNG

in Blender:
aasdasa.png

reimported broken fbx file in blender:
Anmerkung 2019-04-19 082317.png

heres a blend file where that happens. also keep an eye on the foot Constraints, they are broken too but i might report another bug later as a new issue.
Bug 2.80 Beta.blend

**System Information** Operating system: Windows-10-10.0.17763 64 Bits Graphics card: GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 391.35 **Blender Version** Broken: version: 2.80 (sub 57), branch: master, commit date: 2019-04-16 20:13, hash: `5d8030b8f3` Worked: any version before 2019-03-27 **Short description of error** [fbx export of animated and rigged character is broken. hand/arms go nuts. i can change versions just to fix the issue. any earlier version than march 27 still works.] **Exact steps for others to reproduce the error** [i reproduced it with my armature in any case. it only doesnt appear if i export without any animation data or keyframes. if i add a single keyframe and export the character again it gets broken. I also tried to reimport the broken file to see the results and it seems still broken. however i could see that the armature wasnt broken but the skinning somehow instead(see added picture)] exported: ![broken.PNG](https://archive.blender.org/developer/F6954932/broken.PNG) in Blender: ![aasdasa.png](https://archive.blender.org/developer/F6954937/aasdasa.png) reimported broken fbx file in blender: ![Anmerkung 2019-04-19 082317.png](https://archive.blender.org/developer/F6958839/Anmerkung_2019-04-19_082317.png) heres a blend file where that happens. also keep an eye on the foot Constraints, they are broken too but i might report another bug later as a new issue. [Bug 2.80 Beta.blend](https://archive.blender.org/developer/F6959465/Bug_2.80_Beta.blend)

blender/blender-addons#63730 was marked as duplicate of this issue

blender/blender-addons#63730 was marked as duplicate of this issue

#63721 was marked as duplicate of this issue

#63721 was marked as duplicate of this issue
Author

Added subscriber: @AquilaGames

Added subscriber: @AquilaGames

Added subscriber: @ZedDB

Added subscriber: @ZedDB

Changed status from 'Open' to: 'Archived'

Changed status from 'Open' to: 'Archived'
Sebastian Parborg self-assigned this 2019-04-18 10:38:50 +02:00

If you can't provide any steps to reproduce the issue, there is not much to do here.

If you can't provide any steps to reproduce the issue, there is not much to do here.

Changed status from 'Archived' to: 'Open'

Changed status from 'Archived' to: 'Open'
Sebastian Parborg removed their assignment 2019-04-18 10:53:10 +02:00

Can you provide a sample .blend file so we can reproduce this issue ourselves?

Can you provide a sample .blend file so we can reproduce this issue ourselves?

Added subscriber: @SteveBabb

Added subscriber: @SteveBabb

Added subscriber: @gabbitt

Added subscriber: @gabbitt
Bastien Montagne was assigned by Sebastian Parborg 2019-04-19 15:24:01 +02:00

The sample file from #63721:
MAC12 walk cycle old.blend

The sample file from #63721: [MAC12 walk cycle old.blend](https://archive.blender.org/developer/F6959584/MAC12_walk_cycle_old.blend)

Added subscriber: @Sergey

Added subscriber: @Sergey

@Sergey seems like 46eb5a0b8a broke this.

@Sergey seems like 46eb5a0b8a broke this.
Bastien Montagne removed their assignment 2019-04-19 18:31:40 +02:00
Sergey Sharybin was assigned by Bastien Montagne 2019-04-19 18:31:40 +02:00

Added subscriber: @mont29

Added subscriber: @mont29

Added subscriber: @LucasVeber

Added subscriber: @LucasVeber

As @ZedDB mentionned, apparently the "to_mesh" call in the fbx binary export script is not working as it should because it's converting to mesh the model with armature modifiers applied, whereas they are disabled a few lines above in the script (to reset to the rest pose).
Seems to be an update issue. Triggering the data update manually using bpy.context.scene.update() just before "tmp_me = ob.to_mesh..." make it work. Not sure it should be fixed this way though?

As @ZedDB mentionned, apparently the "to_mesh" call in the fbx binary export script is not working as it should because it's converting to mesh the model with armature modifiers applied, whereas they are disabled a few lines above in the script (to reset to the rest pose). Seems to be an update issue. Triggering the data update manually using bpy.context.scene.update() just before "tmp_me = ob.to_mesh..." make it work. Not sure it should be fixed this way though?

Added subscriber: @juaninskirt

Added subscriber: @juaninskirt

Changed status from 'Open' to: 'Resolved'

Changed status from 'Open' to: 'Resolved'

This issue is fixed by the series of commits to the dependency graph API changes and fixes.
Thanks for the report, closing it now.

This issue is fixed by the series of commits to the dependency graph API changes and fixes. Thanks for the report, closing it now.
Sign in to join this conversation.
No Label
Interest
Alembic
Interest
Animation & Rigging
Interest
Asset Browser
Interest
Asset Browser Project Overview
Interest
Audio
Interest
Automated Testing
Interest
Blender Asset Bundle
Interest
BlendFile
Interest
Collada
Interest
Compatibility
Interest
Compositing
Interest
Core
Interest
Cycles
Interest
Dependency Graph
Interest
Development Management
Interest
EEVEE
Interest
EEVEE & Viewport
Interest
Freestyle
Interest
Geometry Nodes
Interest
Grease Pencil
Interest
ID Management
Interest
Images & Movies
Interest
Import Export
Interest
Line Art
Interest
Masking
Interest
Metal
Interest
Modeling
Interest
Modifiers
Interest
Motion Tracking
Interest
Nodes & Physics
Interest
OpenGL
Interest
Overlay
Interest
Overrides
Interest
Performance
Interest
Physics
Interest
Pipeline, Assets & IO
Interest
Platforms, Builds & Tests
Interest
Python API
Interest
Render & Cycles
Interest
Render Pipeline
Interest
Sculpt, Paint & Texture
Interest
Text Editor
Interest
Translations
Interest
Triaging
Interest
Undo
Interest
USD
Interest
User Interface
Interest
UV Editing
Interest
VFX & Video
Interest
Video Sequencer
Interest
Virtual Reality
Interest
Vulkan
Interest
Wayland
Interest
Workbench
Interest: X11
Legacy
Blender 2.8 Project
Legacy
Milestone 1: Basic, Local Asset Browser
Legacy
OpenGL Error
Meta
Good First Issue
Meta
Papercut
Meta
Retrospective
Meta
Security
Module
Animation & Rigging
Module
Core
Module
Development Management
Module
EEVEE & Viewport
Module
Grease Pencil
Module
Modeling
Module
Nodes & Physics
Module
Pipeline, Assets & IO
Module
Platforms, Builds & Tests
Module
Python API
Module
Render & Cycles
Module
Sculpt, Paint & Texture
Module
Triaging
Module
User Interface
Module
VFX & Video
Platform
FreeBSD
Platform
Linux
Platform
macOS
Platform
Windows
Priority
High
Priority
Low
Priority
Normal
Priority
Unbreak Now!
Status
Archived
Status
Confirmed
Status
Duplicate
Status
Needs Info from Developers
Status
Needs Information from User
Status
Needs Triage
Status
Resolved
Type
Bug
Type
Design
Type
Known Issue
Type
Patch
Type
Report
Type
To Do
No Milestone
No project
No Assignees
8 Participants
Notifications
Due Date
The due date is invalid or out of range. Please use the format 'yyyy-mm-dd'.

No due date set.

Dependencies

No dependencies set.

Reference: blender/blender#63689
No description provided.