Losing UV's #71945

New Issue

Claus Bohm · 2019-11-26T23:49:55+01:00

Claus Bohm commented

2019-11-26 23:49:55 +01:00

System Information
Operating system: Windows 10
Graphics card: GTX 1080 Ti

Blender Version 2.81
Broken: (example: 2.80, edbf15d3c0, master, 2018-11-28, as found on the splash screen)
Worked: (optional)

Obj file loses its UV maps after a few mouse clicks

First set up to see both 3d View, UV editor and outliner

Import Obj/ Use del key to zero in obj model
In the outliner click on object then its polygon and then its material.
Observe UV's in UV texture window after above task
(Went back and forth in outliner no issues)
Now while outliner shows 3d View port in edit mode, click in 3d Viewport on object mode.
Next click on edit mode in 3D viewport
you see some edges in red (May have to rotate model to see it)Turret.obj
Now click off of the model (in 3d viewport)
Then click the model again (in 3d viewport)
Now go back to click model/poly/mat in Outliner ... UV's GONE!
Tried this several times on different models and it is gone each time

**System Information** Operating system: Windows 10 Graphics card: GTX 1080 Ti **Blender Version** 2.81 Broken: (example: 2.80, edbf15d3c044, master, 2018-11-28, as found on the splash screen) Worked: (optional) Obj file loses its UV maps after a few mouse clicks First set up to see both 3d View, UV editor and outliner 1. Import Obj/ Use del key to zero in obj model 2. In the outliner click on object then its polygon and then its material. 3. Observe UV's in UV texture window after above task (Went back and forth in outliner no issues) 4. Now while outliner shows 3d View port in edit mode, click in 3d Viewport on object mode. 5. Next click on edit mode in 3D viewport 6. you see some edges in red (May have to rotate model to see it)[Turret.obj](https://archive.blender.org/developer/F8170186/Turret.obj) 7. Now click off of the model (in 3d viewport) 8. Then click the model again (in 3d viewport) 6. Now go back to click model/poly/mat in Outliner ... UV's GONE! 7. Tried this several times on different models and it is gone each time

Claus Bohm commented

2019-11-26 23:49:55 +01:00

Added subscriber: @PCB_guy

Maciej Jutrzenka commented

2019-11-27 00:15:38 +01:00

Added subscriber: @MaciejJutrzenka

Maciej Jutrzenka commented

2019-11-27 00:15:38 +01:00

i can't reproduce can u record video showing that happening?

Philipp Oeser commented

2019-11-27 11:56:30 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2019-11-27 11:56:30 +01:00

There are some things not really clear from the description:

what is meant by:

Use del key to zero in obj model

Now click off of the model

I can only image the following misunderstanding:

clicking on the mesh icon in the outliner is a toggle (it either switches to editmode when you are in objectmode, or vice versa)

So when you say UVs are gone: are you in objectmode or editmode?

There are some things not really clear from the description: what is meant by: > Use del key to zero in obj model > Now click off of the model I can only image the following misunderstanding: - clicking on the mesh icon in the outliner is a **toggle** (it either switches to editmode when you are in objectmode, or vice versa) So when you say UVs are gone: are you in objectmode or editmode?

Claus Bohm commented

2019-11-27 14:39:07 +01:00

Phillip,

OK, I'll do it again with an asset and screen captures. This happens with obj as well

open asset
append asset
Click 3D window edit mode
Unselect the object both in viewport and outlines
reselect the object in outliner and select edit mode in 3D viewport ... UVs gone!
steps.zip

Phillip, ``` OK, I'll do it again with an asset and screen captures. This happens with obj as well ``` 1) open asset 2) append asset 3) Click 3D window edit mode 4) Unselect the object both in viewport and outlines 5) reselect the object in outliner and select edit mode in 3D viewport ... UVs gone! [steps.zip](https://archive.blender.org/developer/F8172175/steps.zip)

Balazs Oszvald commented

2019-11-27 14:55:41 +01:00

Added subscriber: @BalazsOszvald

Balazs Oszvald commented

2019-11-27 14:55:41 +01:00

Don't know if it has to do something with this issue, but I have disappearing UVs in 2.81 also. In my case (see attached), if I connect the multiply node to the base color input, the second UV channel just goes crap (you need to exit edit mode and re-enter to see the change in the UV editor). Checked right now, the same file opened in 2.80 works just fine. temp.blend

Don't know if it has to do something with this issue, but I have disappearing UVs in 2.81 also. In my case (see attached), if I connect the multiply node to the base color input, the second UV channel just goes crap (you need to exit edit mode and re-enter to see the change in the UV editor). Checked right now, the same file opened in 2.80 works just fine. [temp.blend](https://archive.blender.org/developer/F8172194/temp.blend)

Claus Bohm commented

2019-11-27 15:22:10 +01:00

Philip,

I finally got it to work by doing the following, not sure if this is OK

Turn on X-ray mode in top menu
Activate (icons) lines, verts and faces in edit mode and at same time
Box select the object in edit mode
Now all my UV's show up in UV editor

Thanks for your efforts

Claus

Philip, ``` I finally got it to work by doing the following, not sure if this is OK ``` 1. Turn on X-ray mode in top menu 2. Activate (icons) lines, verts and faces in edit mode and at same time 3. Box select the object in edit mode 4. Now all my UV's show up in UV editor Thanks for your efforts Claus

Stanislav Blinov commented

2019-11-28 15:15:23 +01:00

Added subscriber: @Stan_Pancakes

Stanislav Blinov commented

2019-11-28 15:15:23 +01:00

UVs aren't displayed in the UV editor when you don't have any geometry selected in edit mode, unless you enable the "Keep UV selection in sync" option in the UV editor.

Claus Bohm commented

2019-11-28 15:36:26 +01:00

Thank you! It kinda should be on by default. Again, thanks

Philipp Oeser commented

2019-12-17 12:30:02 +01:00

Changed status from 'Open' to: 'Archived'

Philipp Oeser closed this issue

2019-12-17 12:30:02 +01:00

Philipp Oeser self-assigned this 2019-12-17 12:30:02 +01:00

Philipp Oeser commented

2019-12-17 12:30:02 +01:00

I guess this can be closed then?

Feel free to comment again if issues persist, we can always reopen then...

I guess this can be closed then? Feel free to comment again if issues persist, we can always reopen then...

Claus Bohm commented

2019-12-17 15:37:43 +01:00

Yes, thank you for your support

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Losing UV's #71945