Linked Instanced collection data loss #63004

New Issue

Marek Hollý · 2019-03-27T11:20:35+01:00

Marek Hollý commented

2019-03-27 11:20:35 +01:00

System Information
Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 419.35

Blender Version
Broken: version: 2.80 (sub 51), branch: blender2.7, commit date: 2019-03-25 00:55, hash: 07f6be87a9
Worked: (optional)

Short description of error
Instances of Linked Collection lost after scene save.

Exact steps for others to reproduce the error
1 - Create new scene. Create collection Coll01, add Suzanne mesh into collection. Save scene (01_Collection_source_scene.blend)
2 - Create new scene. Create several polygon source objects (cubes with different SRT in my case). Link Coll01 (from 01_Collection_source_scene.blend) into scene.
3 - Select all the source objects (cubes), and lastly select linked Coll01 collection. Press Object/Make Links/Instance collections.
4 - Select all the source objects (cubes) (without Coll01 collection). In object properties/Instancing uncheck "Display Instancer" with ALT key pressed. Now you see Coll01 Collection instanced in a place of all the source objects. Save scene (02_Collection_target_scene.blend)
5 - Open scene (02_Collection_target_scene.blend) again
6 - No instances anymore.Linked Instance data loss.zip

**System Information** Operating system: Windows-10-10.0.17134 64 Bits Graphics card: GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 419.35 **Blender Version** Broken: version: 2.80 (sub 51), branch: blender2.7, commit date: 2019-03-25 00:55, hash: `07f6be87a9` Worked: (optional) **Short description of error** Instances of Linked Collection lost after scene save. **Exact steps for others to reproduce the error** 1 - Create new scene. Create collection Coll01, add Suzanne mesh into collection. Save scene (01_Collection_source_scene.blend) 2 - Create new scene. Create several polygon source objects (cubes with different SRT in my case). Link Coll01 (from 01_Collection_source_scene.blend) into scene. 3 - Select all the source objects (cubes), and lastly select linked Coll01 collection. Press Object/Make Links/Instance collections. 4 - Select all the source objects (cubes) (without Coll01 collection). In object properties/Instancing uncheck "Display Instancer" with ALT key pressed. Now you see Coll01 Collection instanced in a place of all the source objects. Save scene (02_Collection_target_scene.blend) 5 - Open scene (02_Collection_target_scene.blend) again 6 - No instances anymore.[Linked Instance data loss.zip](https://archive.blender.org/developer/F6890167/Linked_Instance_data_loss.zip)

Marek Hollý commented

2019-03-27 11:20:35 +01:00

Added subscriber: @MarekHolly

Philipp Oeser commented

2019-03-27 14:32:31 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2019-03-27 14:32:31 +01:00

Confirmed, checking

Philipp Oeser self-assigned this 2019-03-27 14:42:37 +01:00

Philipp Oeser commented

2019-03-27 14:42:37 +01:00

Instancing a collection is only allowed for Empties in 2.8, (this changed in 2eca054e14)
So I guess the Make Links operator should also be updated to prevent setting dupli-collections on non-empty objects. (or the versioning code from 7fe3d1e7d7 would always have to run)
But preventing that this actually happens would be more consistent I guess, looking into it now...

Instancing a collection is only allowed for Empties in 2.8, (this changed in 2eca054e14) So I guess the Make Links operator should also be updated to prevent setting dupli-collections on non-empty objects. (or the versioning code from 7fe3d1e7d7 would always have to run) But preventing that this actually happens would be more consistent I guess, looking into it now...

blender-admin commented

2019-03-27 14:57:13 +01:00

This issue was referenced by 9624df5d1e

This issue was referenced by 9624df5d1edd74b1be77cf000dbd39f9e19f89c3

Philipp Oeser commented

2019-03-27 15:28:45 +01:00

Changed status from 'Open' to: 'Resolved'

Philipp Oeser closed this issue

2019-03-27 15:28:45 +01:00

Marek Hollý commented

2019-03-27 16:24:01 +01:00

Thanks Phillip. It works on empties.

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Linked Instanced collection data loss #63004