Fbx export shape keys not working when object has a triangulation modifer #91316

New Issue

Daniel Grauer · 2021-09-10T16:58:06+02:00

Daniel Grauer commented

2021-09-10 16:58:06 +02:00

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 471.68

Blender Version
Broken: version: 2.93.1, branch: master, commit date: 2021-06-22 05:57, hash: 1b8d33b18c
Worked: unknown

Short description of error
when a triangulation modifier is on a object and exported with FBX the shape keys are not exported.

Exact steps for others to reproduce the error

missingshapekeys.blend

create a shapekey animation in blender
add a triangulation modifier to the object
export with fbx (default settings)
import the object in unity
the objects shapekeys are not imported
go back to blender
delete or apply the triangulation modifier
8., export the object again with FBX exporter
import in unity will give a Skinned mesh renderer

import settings for unity:
FBXImporter.preset

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: NVIDIA GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 471.68 **Blender Version** Broken: version: 2.93.1, branch: master, commit date: 2021-06-22 05:57, hash: `1b8d33b18c` Worked: unknown **Short description of error** when a triangulation modifier is on a object and exported with FBX the shape keys are not exported. **Exact steps for others to reproduce the error** [missingshapekeys.blend](https://archive.blender.org/developer/F10394375/missingshapekeys.blend) 1. create a shapekey animation in blender 2. add a triangulation modifier to the object 3. export with fbx (default settings) 4. import the object in unity 5. the objects shapekeys are not imported ![Screen Shot 09-10-21 at 04.53 PM 003.PNG](https://archive.blender.org/developer/F10394364/Screen_Shot_09-10-21_at_04.53_PM_003.PNG) 6. go back to blender 7. delete or apply the triangulation modifier 8., export the object again with FBX exporter 9. import in unity will give a Skinned mesh renderer ![Screen Shot 09-10-21 at 04.53 PM 002.PNG](https://archive.blender.org/developer/F10394366/Screen_Shot_09-10-21_at_04.53_PM_002.PNG) import settings for unity: [FBXImporter.preset](https://archive.blender.org/developer/F10394362/FBXImporter.preset) ![Screen Shot 09-10-21 at 04.53 PM 004.PNG](https://archive.blender.org/developer/F10394363/Screen_Shot_09-10-21_at_04.53_PM_004.PNG) ![Screen Shot 09-10-21 at 04.53 PM.PNG](https://archive.blender.org/developer/F10394367/Screen_Shot_09-10-21_at_04.53_PM.PNG) ![Screen Shot 09-10-21 at 04.53 PM 001.PNG](https://archive.blender.org/developer/F10394365/Screen_Shot_09-10-21_at_04.53_PM_001.PNG)

Daniel Grauer commented

2021-09-10 16:58:06 +02:00

Added subscriber: @DanielGrauer

Scurest commented

2021-09-10 17:28:28 +02:00

Added subscriber: @scurest

Scurest commented

2021-09-10 17:28:28 +02:00

If you hover over the "Apply Modifiers" checkbox on the FBX export screen, you get this tooltip

Applies modifiers to mesh objects (except Armature ones) - WARNING: prevents exporting shape keys.

If you hover over the "Apply Modifiers" checkbox on the FBX export screen, you get this tooltip > Applies modifiers to mesh objects (except Armature ones) - **WARNING: prevents exporting shape keys.**

Philipp Oeser commented

2021-09-13 11:56:26 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2021-09-13 11:56:26 +02:00

Changed status from 'Needs Triage' to: 'Archived'

Philipp Oeser closed this issue

2021-09-13 11:56:26 +02:00

Philipp Oeser commented

2021-09-13 11:56:26 +02:00

This is a know limitation, yes (think GLTF -- or any other exporter -- should have the same behavior) since you cannot apply modfiers on meshes with shapekeys (not even manually).

Afraid we have to close this, thx reporting anyways!

This is a know limitation, yes (think GLTF -- or any other exporter -- should have the same behavior) since you cannot apply modfiers on meshes with shapekeys (not even manually). Afraid we have to close this, thx reporting anyways!

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Fbx export shape keys not working when object has a triangulation modifer #91316