Alembic export does not export smoothing groups #61375

New Issue

Ludvik Koutny · 2019-02-10T09:35:04+01:00

Ludvik Koutny commented

2019-02-10 09:35:04 +01:00

Operating system: Windows 10

Blender Version
Broken: 2.8 latest master

Short description of error
In many (majority) of cases, Blender's .abc exporter doesn't properly export smoothing groups.

This is the exported model:

The exporter settings are explicitly configured to export all the face shading properties and normals:

The same model reimported into same version of blender using the same .abc file that was exported:

Exact steps for others to reproduce the error
1, Open the file:
Herital_Heavy_Weapons_Factory_V03.zip
2, Export it as .abc format. Make sure to enable all the options related to normal export
3, Import the exported file back to blender.

Result:
Face normals are gone

Expected:
Face normals are preserved

UPDATE: It appears that GLTF format has the same problem.

Operating system: Windows 10 **Blender Version** Broken: 2.8 latest master **Short description of error** In many (majority) of cases, Blender's .abc exporter doesn't properly export smoothing groups. This is the exported model: ![export.JPG](https://archive.blender.org/developer/F6567160/export.JPG) The exporter settings are explicitly configured to export all the face shading properties and normals: ![image.png](https://archive.blender.org/developer/F6567168/image.png) The same model reimported into same version of blender using the same .abc file that was exported: ![reimport.JPG](https://archive.blender.org/developer/F6567173/reimport.JPG) **Exact steps for others to reproduce the error** 1, Open the file: [Herital_Heavy_Weapons_Factory_V03.zip](https://archive.blender.org/developer/F6567176/Herital_Heavy_Weapons_Factory_V03.zip) 2, Export it as .abc format. Make sure to enable all the options related to normal export 3, Import the exported file back to blender. Result: Face normals are gone Expected: Face normals are preserved UPDATE: It appears that GLTF format has the same problem.

Ludvik Koutny commented

2019-02-10 09:35:04 +01:00

Added subscriber: @Rawalanche

Sebastian Parborg commented

2019-02-11 15:17:56 +01:00

Added subscriber: @ZedDB

Sybren A. Stüvel was assigned by Sebastian Parborg

2019-02-11 15:17:56 +01:00

Sebastian Parborg commented

2019-02-11 15:17:56 +01:00

This seems like a feature request... Just kidding ;)

I can reproduce this issue on my end too. It seems like (the final) face normals are indeed not preserved.

This seems like a feature request... Just kidding ;) I can reproduce this issue on my end too. It seems like (the final) face normals are indeed not preserved.

Ludvik Koutny commented

2019-02-11 17:09:54 +01:00

In #61375#617858, @ZedDB wrote:
This seems like a feature request... Just kidding ;)

I can reproduce this issue on my end too. It seems like (the final) face normals are indeed not preserved.

Thanks for taking the time to look into it :)

> In #61375#617858, @ZedDB wrote: > This seems like a feature request... Just kidding ;) > > I can reproduce this issue on my end too. It seems like (the final) face normals are indeed not preserved. Thanks for taking the time to look into it :)

Sybren A. Stüvel commented

2019-07-10 10:54:33 +02:00

This is fixed in D5191.

This is fixed in [D5191](https://archive.blender.org/developer/D5191).

Sybren A. Stüvel commented

2019-07-30 17:09:49 +02:00

Changed status from 'Open' to: 'Resolved'

Sybren A. Stüvel closed this issue

2019-07-30 17:09:49 +02:00

Sybren A. Stüvel commented

2019-07-30 17:09:49 +02:00

Resolved by committing e9c149d911.

Resolved by committing e9c149d911.

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Alembic export does not export smoothing groups #61375