Library Override: selection and visibility problem with overriden hook empties #71393

New Issue

Nuno Conceicao · 2019-11-06T20:14:03+01:00

Nuno Conceicao commented

2019-11-06 20:14:03 +01:00

System Information
Operating system: Windows-10-10.0.18362 64 Bits
Graphics card: GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 418.81

Blender Version
Broken: version: 2.81 (sub 16), branch: master, commit date: 2019-11-05 18:23, hash: 9d1031b011
Worked: (optional)

Short description of error
Linking a curve with a couple hooks doesn't work with library override

Exact steps for others to reproduce the error
1 . Add curve bezier
2. Enter edit mode
3. Select a handle
4. CTRL+H >Hook to new object
5. Repeat 3 and 4 for the other handle and exit edit mode
6. Select bezier and in the object properties add some thickness on the Bevel/Depth (for visual purposes of the issue)
7 , Put the bezier object and the 2 empty objects inside a test collection
8. Save and name the file.
#71393.blend

Start another blender session
Link the file saved on step 7 and point to the test collection
T71393_main.blend
Select the linked collection and in the Object/relations choose "Make Library Override"
Choose one of the emptys
(First issue is that sometimes this makes everything disappear or not selectable and have to change visibilities around for everything to act normally)
Repeat steps 10 through 12 to get another linked collection of the same rig
Now if you move the other empties you will realise that the curve of the second link is not following its hooks, but instead its following the first link empty hooks
Try selecting the second linked curve and you will realise also that the outline is correctly deformed but the shaded geometry is matching the first linked curve which is even more wierd.

file with 3 linked collections and added ovverides after having tried to get selectability to work by changing visibility:
T71393_main_with overrides.blend

**System Information** Operating system: Windows-10-10.0.18362 64 Bits Graphics card: GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 418.81 **Blender Version** Broken: version: 2.81 (sub 16), branch: master, commit date: 2019-11-05 18:23, hash: `9d1031b011` Worked: (optional) **Short description of error** Linking a curve with a couple hooks doesn't work with library override **Exact steps for others to reproduce the error** 1 . Add curve bezier 2. Enter edit mode 3. Select a handle 4. CTRL+H >Hook to new object 5. Repeat 3 and 4 for the other handle and exit edit mode 6. Select bezier and in the object properties add some thickness on the Bevel/Depth (for visual purposes of the issue) 7 , Put the bezier object and the 2 empty objects inside a test collection 8. Save and name the file. [#71393.blend](https://archive.blender.org/developer/F7974303/T71393.blend) 9. Start another blender session 10. Link the file saved on step 7 and point to the test collection [T71393_main.blend](https://archive.blender.org/developer/F7974306/T71393_main.blend) 11. Select the linked collection and in the Object/relations choose "Make Library Override" 12. Choose one of the emptys (First issue is that sometimes this makes everything disappear or not selectable and have to change visibilities around for everything to act normally) 13. Repeat steps 10 through 12 to get another linked collection of the same rig 14. Now if you move the other empties you will realise that the curve of the second link is not following its hooks, but instead its following the first link empty hooks 15. Try selecting the second linked curve and you will realise also that the outline is correctly deformed but the shaded geometry is matching the first linked curve which is even more wierd. file with 3 linked collections and added ovverides after having tried to get selectability to work by changing visibility: [T71393_main_with overrides.blend](https://archive.blender.org/developer/F7974316/T71393_main_with_overrides.blend)

Nuno Conceicao commented

2019-11-06 20:14:03 +01:00

Added subscriber: @NunoAlexandreConceicao

Philipp Oeser commented

2019-11-07 14:06:03 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2019-11-07 14:06:03 +01:00

I am already stuck at step 12 [cant get the empties to be selectable, having changed visibilities causes curves to disappear and apparently no way to get them back visible]
I'll add files to the task description for completeness... [@NunoAlexandreConceicao: it is always good to attach files here -- even if they are simple -- this just makes sure we are all on the same page...]

I am already stuck at step 12 [cant get the empties to be selectable, having changed visibilities causes curves to disappear and apparently no way to get them back visible] I'll add files to the task description for completeness... [@NunoAlexandreConceicao: it is always good to attach files here -- even if they are simple -- this just makes sure we are all on the same page...]

Philipp Oeser changed title from ~~Linking a curve rigged with hooks doesn't work properly with library overrides~~ to Library Override: Linking a curve rigged with hooks doesn't work properly

2019-11-07 14:08:54 +01:00

Philipp Oeser commented

2019-11-07 14:09:15 +01:00

Added subscriber: @mont29

Philipp Oeser commented

2019-11-07 14:09:15 +01:00

CC @mont29

Bastien Montagne commented

2019-11-07 15:06:39 +01:00

Am almost certain that this is same issue as #71055 (and has nothing to do with lib overrides): several Curve objects sharing a same curve data-block but having different modifiers… Most likely a drawing issue.

Philipp Oeser commented

2019-11-07 16:29:59 +01:00

OK, can confirm that it works better with meshes [the such issue as #71055]
T71393_mesh.zip

There is still something weird going on regarding selection/visibility:

if you open T71393_mesh_main.blend form above zip and do Object > Relations > Make Library Override > Empty, you cannot select any of the empties, if you G grab the setup empty, the plane and the overridden hook empties disappear into the abyss.
if that file is saved and reopened, everything appears to work normally...

All of the above is not the case [no quirks] if you do it with an armature [instead of hooks]
T71393_armature.zip

OK, can confirm that it works better with meshes [the such issue as #71055] [T71393_mesh.zip](https://archive.blender.org/developer/F7975771/T71393_mesh.zip) There is still something weird going on regarding selection/visibility: - if you open `T71393_mesh_main.blend` form above zip and do `Object` > `Relations` > `Make Library Override` > `Empty`, you cannot select any of the empties, if you G grab the `setup` empty, the `plane` and the overridden hook empties disappear into the abyss. - if that file is saved and reopened, everything appears to work normally... All of the above is not the case [no quirks] if you do it with an armature [instead of hooks] [T71393_armature.zip](https://archive.blender.org/developer/F7975845/T71393_armature.zip)

Philipp Oeser changed title from ~~Library Override: Linking a curve rigged with hooks doesn't work properly~~ to Library Override: selection and visibility problem with overriden hook emptiees

2019-11-07 16:31:33 +01:00

Philipp Oeser changed title from ~~Library Override: selection and visibility problem with overriden hook emptiees~~ to Library Override: selection and visibility problem with overriden hook empties

2019-11-07 16:31:42 +01:00

Philipp Oeser commented

2019-11-07 16:36:05 +01:00

OKi, looks like 74af698769 fixed the selection/visibility thing :)

OKi, looks like 74af698769 fixed the selection/visibility thing :)

Philipp Oeser commented

2019-11-07 16:42:12 +01:00

One more thing though:

if you open T71393_main.blendand do Object > Relations > Make Library Override > Empty, both hook empties are free to move (that might be expected?), however only the one you have chosen to be overridden displays it transform channels in the turquoise color?

One more thing though: - if you open `T71393_main.blend`and do `Object` > `Relations` > `Make Library Override` > `Empty`, both hook empties are free to move (that might be expected?), however only the one you have chosen to be overridden displays it transform channels in the turquoise color?

Bastien Montagne commented

2019-11-07 17:42:57 +01:00

Changed status from 'Open' to: 'Resolved'

Bastien Montagne closed this issue

2019-11-07 17:42:57 +01:00

Bastien Montagne self-assigned this 2019-11-07 17:42:57 +01:00

Bastien Montagne commented

2019-11-07 17:42:57 +01:00

In #71393#807551, @lichtwerk wrote:
One more thing though:

if you open T71393_main.blendand do Object > Relations > Make Library Override > Empty, both hook empties are free to move (that might be expected?), however only the one you have chosen to be overridden displays it transform channels in the turquoise color?

Yes that is expected, that’s basically why we need an operator here, to mimic how proxy were working (with some differences due to specifics of lib override system, when you use that operator on a collection, all of its objects will end up being overridden - and hence editable).

Considering that issue fixed, remaining aspects of it are already reported in other reports.

> In #71393#807551, @lichtwerk wrote: > One more thing though: > - if you open `T71393_main.blend`and do `Object` > `Relations` > `Make Library Override` > `Empty`, both hook empties are free to move (that might be expected?), however only the one you have chosen to be overridden displays it transform channels in the turquoise color? Yes that is expected, that’s basically why we need an operator here, to mimic how proxy were working (with some differences due to specifics of lib override system, when you use that operator on a collection, all of its objects will end up being overridden - and hence editable). Considering that issue fixed, remaining aspects of it are already reported in other reports.

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Library Override: selection and visibility problem with overriden hook empties #71393