Undo doesn't work on UVmap deletion & only 5-6 UVmaps on same object possible #84690

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Ahmad Bilal · 2021-01-13T22:34:44+01:00

Ahmad Bilal commented

2021-01-13 22:34:44 +01:00

System Information
Operating system: Windows 10
Graphics card: AMD Vega64 (20.11.1 driver)

Blender Version
Broken: 2.92.0 Beta (Jan 14 build)
Worked: Testing older versions.

Short description of error
There are two seperate issues, both related to UVmaps (under Object Data Properties)

~~1. First of all the undo doesn't revert the deletion of UVmap (I tested with 2 recent versions of blender). even reverting the file doesn't work! (while blender is open).~~

~~Exact steps for others to reproduce the error~~

~~Have multiple UVmaps~~
~~Delete one using the '-' button on the right side~~
~~Ctrl+Z to undo the deletion of UVmap (broken)~~

~~Temporary Workarounds~~

~~Close blender without saving, launch it again~~
~~Or restore from a autosave~~

Undo was temporarily broken, but was already fixed by rB73169628a1853fcc5e93c6d0c70c6668452b8a61

I'm working on something that requires me to have multiple uvmaps (I created a total of 7). But it seems after creating a 5th or 6th one, blender seems to have issue in displaying them properly. (I'm only using each UVmap (Uvmap node) connected to a Image Texture connected to Emission Shade (see attached image)).

5-6 out of 7 uvmaps are showing up correctly as intended, but only the lowest one in the list is displaying wrong (see attached image)

At first I thought I was doing something wrong, so I redid the steps a few times. But now I'm sure its a bug as:

Deleting 1 of the other UV maps, corrupts the the lowest one automatically (I deleted the top most one, here in this case its name 'UVmap_Tree_Original')
But after that the 2nd UV map in the list (here marked 'UV_Top') .. doesn't display correctly anymore.

**System Information** Operating system: Windows 10 Graphics card: AMD Vega64 (20.11.1 driver) **Blender Version** Broken: 2.92.0 Beta (Jan 14 build) Worked: Testing older versions. **Short description of error** There are two seperate issues, both related to UVmaps (under Object Data Properties) ---- ~~1. First of all the undo doesn't revert the deletion of UVmap (I tested with 2 recent versions of blender). **even reverting the file doesn't work! (while blender is open)**.~~ ~~**Exact steps for others to reproduce the error**~~ - ~~Have multiple UVmaps~~ - ~~Delete one using the '-' button on the right side~~ - ~~Ctrl+Z to undo the deletion of UVmap (broken)~~ ~~**Temporary Workarounds**~~ - ~~Close blender without saving, launch it again~~ - ~~Or restore from a autosave~~ ``` Undo was temporarily broken, but was already fixed by rB73169628a1853fcc5e93c6d0c70c6668452b8a61 ``` ---- 2. I'm working on something that requires me to have multiple uvmaps (I created a total of 7). But it seems after creating a 5th or 6th one, blender seems to have issue in displaying them properly. (I'm only using each UVmap (Uvmap node) connected to a Image Texture connected to Emission Shade (see attached image)). 5-6 out of 7 uvmaps are showing up correctly as intended, but only the lowest one in the list is displaying wrong (see attached image) At first I thought I was doing something wrong, so I redid the steps a few times. But now I'm sure its a bug as: - Deleting 1 of the other UV maps, corrupts the the lowest one automatically (I deleted the top most one, here in this case its name 'UVmap_Tree_Original') - But after that the 2nd UV map in the list (here marked 'UV_Top') .. doesn't display correctly anymore. ![UV_issue.png](https://archive.blender.org/developer/F9577856/UV_issue.png)

Ahmad Bilal commented

2021-01-13 22:34:44 +01:00

Added subscriber: @SomeAB

Ahmad Bilal commented

2021-01-13 23:01:57 +01:00

I just tested this in 2.91.0:

Additional observations:

Confirmed: Deleting the topmost UVmap in the list, corrupts the next one below it
Confirmed: Undo works fine in 2.91.0
After confirming that 2nd-topmost UVmap gets corrupted, I did undo multiple times.. and I was back at 7 UVmaps .. and 6 lower ones are working fine now, but the topmost is now not working.

I just tested this in 2.91.0: Additional observations: - Confirmed: Deleting the topmost UVmap in the list, corrupts the next one below it - Confirmed: Undo works fine in 2.91.0 - After confirming that 2nd-topmost UVmap gets corrupted, I did undo multiple times.. and I was back at 7 UVmaps .. and 6 lower ones are working fine now, but the topmost is now not working.

Robert Guetzkow commented

2021-01-14 00:46:06 +01:00

Added subscriber: @rjg

Robert Guetzkow commented

2021-01-14 00:46:06 +01:00

This might be a combination of multiple issues. Please wait for the next daily build that includes 01b9dfeab4 and test again.

This might be a combination of multiple issues. Please wait for the next daily build that includes 01b9dfeab4 and test again.

Ahmad Bilal commented

2021-01-14 02:04:15 +01:00

In #84690#1093201, @rjg wrote:
This might be a combination of multiple issues. Please wait for the next daily build that includes 01b9dfeab4 and test again.

The undo part seems to be.

But the other issue is not (as it is broken in 2.91.0 as well).

> In #84690#1093201, @rjg wrote: > This might be a combination of multiple issues. Please wait for the next daily build that includes 01b9dfeab4 and test again. The undo part seems to be. But the other issue is not (as it is broken in 2.91.0 as well).

Robert Guetzkow commented

2021-01-14 10:30:17 +01:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Robert Guetzkow commented

2021-01-14 10:30:17 +01:00

I could not reproduce the second problem. I've created a minimal example project and it seems to work without any issues. Does this file work for you?

T84690_3.blend

@SomeAB Could you please provide a minimal example project that causes these issues in your project?

I could not reproduce the second problem. I've created a minimal example project and it seems to work without any issues. Does this file work for you? [T84690_3.blend](https://archive.blender.org/developer/F9578346/T84690_3.blend) @SomeAB Could you please provide a minimal example project that causes these issues in your project?

Ahmad Bilal commented

2021-01-16 01:51:50 +01:00

I will upload the file I was working on (its not a important project anyway). But will do tomorrow.

Ahmad Bilal commented

2021-01-16 22:05:27 +01:00

Here is the example file: https://drive.google.com/file/d/1U_h6f4njwUv6TtRfYJLSU8EY6G21yA3s/view?usp=sharing

The object 'Tree_Final' has the multiple UV maps.

How to reproduce:

Add another UVmap node + image texture node
In UV map node, select the 'UVMap_Tree_Original' .. and for image texture ..select "EonTexture_Tree_01".
Connect Each Texture node (now there shoudl be total 7 instead of 6) directly to the Material Output (Surface), one-by-one.
(IMPORTANT: Please notice that UVmaps currently in this file are projected from 6 sides: Top, Bottom, X1 (X-axis positive).. and so on. So X1 would look correct while viewing from X positive side only (numpad 3 to view it). This is NOT the issue.

However when viewing each of them from their respective sides, they should all look correct, but you will notice 1 out of the 7 (it happens randomly) .. won't look correct.

Now delete 1 of the UVmap from the 7 (try deleting the top-most in the list), and check again (specially the second most in the list). Most probably, the one that was not showing/displaying properly earlier would get corrected automatically.

Here is the example file: https://drive.google.com/file/d/1U_h6f4njwUv6TtRfYJLSU8EY6G21yA3s/view?usp=sharing The object 'Tree_Final' has the multiple UV maps. How to reproduce: 1. Add another UVmap node + image texture node 2. In UV map node, select the 'UVMap_Tree_Original' .. and for image texture ..select "EonTexture_Tree_01". 3. Connect Each Texture node (now there shoudl be total 7 instead of 6) directly to the Material Output (Surface), one-by-one. 4. (IMPORTANT: Please notice that UVmaps currently in this file are projected from 6 sides: Top, Bottom, X1 (X-axis positive).. and so on. So X1 would look correct while viewing from X positive side only (numpad 3 to view it). This is NOT the issue. However when viewing each of them from their respective sides, they should all look correct, but you will notice 1 out of the 7 (it happens randomly) .. won't look correct. 5. Now delete 1 of the UVmap from the 7 (try deleting the top-most in the list), and check again (specially the second most in the list). Most probably, the one that was not showing/displaying properly earlier would get corrected automatically.

Robert Guetzkow commented

2021-01-23 12:21:26 +01:00

I was not able to reproduce the described issue. All image textures get correctly displayed from the respective perspective they've been projected from. Does the issue still occur for you with the current daily builds?

Robert Guetzkow commented

2021-02-07 00:15:48 +01:00

@SomeAB Are you still having this issue in current daily builds of Blender 2.92?

Robert Guetzkow commented

2021-02-20 23:31:21 +01:00

Changed status from 'Needs User Info' to: 'Archived'

Robert Guetzkow closed this issue

2021-02-20 23:31:21 +01:00

Robert Guetzkow commented

2021-02-20 23:31:21 +01:00

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed.

Thank you for the report. If the problem persists please open a new report with the required information.

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed. Thank you for the report. If the problem persists please open a new report with the required information.

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Undo doesn't work on UVmap deletion & only 5-6 UVmaps on same object possible #84690