blender/blender
164
517
Fork 783
Code Issues 6.8k Pull Requests 937 Projects 19 Wiki Activity

3.6 FBX exporter loses material data on meshes which share linked object data #110967

New Issue
Closed
opened 2023-08-09 17:07:32 +02:00 by Frankie Hobbins · 2 comments
Frankie Hobbins commented 2023-08-09 17:07:32 +02:00
Copy Link

System Information
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 2080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 531.79

Blender Version
Broken: version: 3.6.1, branch: blender-v3.6-release, commit date: 2023-07-17 12:50, hash: 8bda729ef4dc
Worked: 3.5

Short description of error
When exporting scenes to FBX to be used in unity with the FBX exporter from 3.6, materials get dropped from objects if they share mesh data.

It's possible this is a unity issue but I believe the issue happened between 3.5 and 3.6 so more likely to be a blender issue. I can file a unity issue if needed but would be great to have some more details.

more reports on forums;
https://forum.unity.com/threads/meshes-that-are-linked-instances-in-blender-loose-material-when-importet-to-unity.1465592/
https://blenderartists.org/t/fbx-exporting-problem-in-3-6/1471047

Exact steps for others to reproduce the error

Export an fbx from the blend file (or use the one provided)
Open FBX in unity
Notice the secondary triangle object has a different material, it should share the same material as the first

**System Information** Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 2080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 531.79 **Blender Version** Broken: version: 3.6.1, branch: blender-v3.6-release, commit date: 2023-07-17 12:50, hash: `8bda729ef4dc` Worked: 3.5 **Short description of error** When exporting scenes to FBX to be used in unity with the FBX exporter from 3.6, materials get dropped from objects if they share mesh data. It's possible this is a unity issue but I believe the issue happened between 3.5 and 3.6 so more likely to be a blender issue. I can file a unity issue if needed but would be great to have some more details. more reports on forums; https://forum.unity.com/threads/meshes-that-are-linked-instances-in-blender-loose-material-when-importet-to-unity.1465592/ https://blenderartists.org/t/fbx-exporting-problem-in-3-6/1471047 **Exact steps for others to reproduce the error** Export an fbx from the blend file (or use the one provided) Open FBX in unity Notice the secondary triangle object has a different material, it should share the same material as the first
fbx export issue.fbx
15 KiB
fbx export issue.blend
749 KiB
unitybug.png
146 KiB
unitybug.png
Frankie Hobbins added the
Type
Report
Severity
Normal
Status
Needs Triage
 labels 2023-08-09 17:07:32 +02:00
Thomas Barlow commented 2023-08-09 18:09:54 +02:00
Member
Copy Link

This should be fixed in 3.6.1: https://projects.blender.org/blender/blender-addons/commit/dab724af

If you previously exported your .fbx from 3.6.0, re-exporting it with 3.6.1 should resolve the issue.

The attached .blend exported with 3.6.1 and imported into Unity: image

This should be fixed in 3.6.1: https://projects.blender.org/blender/blender-addons/commit/dab724af If you previously exported your .fbx from 3.6.0, re-exporting it with 3.6.1 should resolve the issue. The attached .blend exported with 3.6.1 and imported into Unity: ![image](/attachments/2d16f146-dcdc-427f-8117-fb5d546fbd67)
image.png
9.5 KiB
Frankie Hobbins commented 2023-08-09 19:11:20 +02:00
Author
Copy Link

You are correct,

I download 3.6.1 to test then I must have overwrote the fbx exporter plugin while copying my settings across from the old build.

I just installed a fresh build and it exports correctly

Sorry about that!

You are correct, I download 3.6.1 to test then I must have overwrote the fbx exporter plugin while copying my settings across from the old build. I just installed a fresh build and it exports correctly Sorry about that!
Blender Bot added
Status
Archived
 and removed
Status
Needs Triage
 labels 2023-08-09 19:11:25 +02:00
Sign in to join this conversation.
No Branch/Tag Specified
Branches Tags
Labels
Clear labels   
Interest
Alembic

  
Interest
Animation & Rigging

  
Interest
Asset System
Asset datablocks, libraries, browser and shelf

  
Interest
Audio

  
Interest
Automated Testing

  
Interest
Blender Asset Bundle

  
Interest
BlendFile

  
Interest
Code Documentation
Code comments, Python/RNA API descriptions

  
Interest
Collada

  
Interest
Compatibility
Backward and forward compatibility

  
Interest
Compositing

  
Interest
Core

  
Interest
Cycles

  
Interest
Dependency Graph

  
Interest
Development Management

  
Interest
EEVEE

  
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
Viewport & EEVEE

  
Interest
Virtual Reality

  
Interest
Vulkan

  
Interest
Wayland
Wayland windowing on Unix

  
Interest
Workbench

  
Interest: X11

Xorg/X11 windowing

  
Legacy
Asset Browser Project

Archived

  
Legacy
Blender 2.8 Project

Archived

  
Legacy
Milestone 1: Basic, Local Asset Browser

Archived

  
Legacy
OpenGL Error

Archived

  
Meta
Good First Issue

  
Meta
Papercut

  
Meta
Retrospective

  
Meta
Security
Related to security, see policy: https://developer.blender.org/docs/handbook/bug_reports/vulnerability_reports/

  
Module
Animation & Rigging

  
Module
Core

  
Module
Development Management

  
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

  
Module
Viewport & EEVEE

  
Platform
FreeBSD

  
Platform
Linux

  
Platform
macOS

  
Platform
Windows

  
Severity
High

  
Severity
Low

  
Severity
Normal

  
Severity
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

Archived

  
Type
Report

Archived

  
Type
To Do

No Label
Interest
Alembic
Interest
Animation & Rigging
Interest
Asset System
Interest
Audio
Interest
Automated Testing
Interest
Blender Asset Bundle
Interest
BlendFile
Interest
Code Documentation
Interest
Collada
Interest
Compatibility
Interest
Compositing
Interest
Core
Interest
Cycles
Interest
Dependency Graph
Interest
Development Management
Interest
EEVEE
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
Viewport & EEVEE
Interest
Virtual Reality
Interest
Vulkan
Interest
Wayland
Interest
Workbench
Interest: X11
Legacy
Asset Browser Project
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
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
Module
Viewport & EEVEE
Platform
FreeBSD
Platform
Linux
Platform
macOS
Platform
Windows
Severity
High
Severity
Low
Severity
Normal
Severity
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
Milestone
Clear milestone
No items
No Milestone
Projects
Clear projects
No project
Assignees
Clear assignees
No Assignees
2 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#110967
No description provided.
Delete Branch "%!s()"

Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?