Weight paint mode "Levels" option changes active vertexgroup after execution #73302

New Issue

Todd Gillissie · 2020-01-21T20:47:29+01:00

Todd Gillissie commented

2020-01-21 20:47:29 +01:00

System Information
Operating system: Darwin-18.7.0-x86_64-i386-64bit 64 Bits
Graphics card: AMD Radeon Pro 580 OpenGL Engine ATI Technologies Inc. 4.1 ATI-2.11.20

Blender Version
Broken: version: 2.81 (sub 16), branch: master, commit date: 2019-12-04 11:32, hash: f1aa4d18d4
Worked: (optional)

Short description of error
Trying to set vertex group levels, the active group keeps changing automatically and unpredictably.

Exact steps for others to reproduce the error
See attached video.
Setting the weight level of a vertex group is very un-intuitive, and even when following the correct steps, often doesn't work as expected.

Go into weight paint mode.
Select a vertex group.
Choose menu option Weights/Levels.
Choose "Active Group" for "Subset", and make some changes.
Sometimes, a different group is automatically selected and the changes applied to instead of the group that was selected when choosing the menu option.
Weight Levels 720.mov

**System Information** Operating system: Darwin-18.7.0-x86_64-i386-64bit 64 Bits Graphics card: AMD Radeon Pro 580 OpenGL Engine ATI Technologies Inc. 4.1 ATI-2.11.20 **Blender Version** Broken: version: 2.81 (sub 16), branch: master, commit date: 2019-12-04 11:32, hash: `f1aa4d18d4` Worked: (optional) **Short description of error** Trying to set vertex group levels, the active group keeps changing automatically and unpredictably. **Exact steps for others to reproduce the error** See attached video. Setting the weight level of a vertex group is very un-intuitive, and even when following the correct steps, often doesn't work as expected. 1. Go into weight paint mode. 2. Select a vertex group. 3. Choose menu option Weights/Levels. 4. Choose "Active Group" for "Subset", and make some changes. 5. Sometimes, a different group is automatically selected and the changes applied to instead of the group that was selected when choosing the menu option. [Weight Levels 720.mov](https://archive.blender.org/developer/F8292640/Weight_Levels_720.mov)

Todd Gillissie commented

2020-01-21 20:47:29 +01:00

Added subscriber: @Gillissie

Philipp Oeser commented

2020-01-22 09:38:40 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2020-01-22 09:38:40 +01:00

Changed status from 'Needs Triage' to: 'Confirmed'

Philipp Oeser commented

2020-01-22 09:38:40 +01:00

Can confirm, checking...

Philipp Oeser commented

2020-01-22 09:40:22 +01:00

Setting the weight level of a vertex group is very un-intuitive

Not sure about this, if it was staying on the vertexgroup which was selected when executing the operator [aka: if the confirmed bug would be resolved], what would be so "un-intuitive"?

> Setting the weight level of a vertex group is very un-intuitive Not sure about this, if it was staying on the vertexgroup which was selected when executing the operator [aka: if the confirmed bug would be resolved], what would be so "un-intuitive"?

Philipp Oeser commented

2020-01-22 10:02:03 +01:00

The (unwanted) changing of the vertexgroup after execution is only happening if the user actually changed the vertexgroup directly before the execution
This is the same issue as #69760 (Undo/Adjust Last Operation: vertex and weightpaint operators/strokes undo more then they should (change back any setting changed prior to execution)), will merge these reports...

In #73302#855490, @lichtwerk wrote:

Setting the weight level of a vertex group is very un-intuitive

Not sure about this, if it was staying on the vertexgroup which was selected when executing the operator [aka: if the confirmed bug would be resolved], what would be so "un-intuitive"?

@Gillissie : if there is another issue that is not covered by #69760, please report this seperately, thx

The (unwanted) changing of the vertexgroup after execution is only happening if the user actually changed the vertexgroup directly before the execution This is the same issue as #69760 (Undo/Adjust Last Operation: vertex and weightpaint operators/strokes undo more then they should (change back any setting changed prior to execution)), will merge these reports... > In #73302#855490, @lichtwerk wrote: >> Setting the weight level of a vertex group is very un-intuitive > Not sure about this, if it was staying on the vertexgroup which was selected when executing the operator [aka: if the confirmed bug would be resolved], what would be so "un-intuitive"? @Gillissie : if there is another issue that is not covered by #69760, please report this seperately, thx

Philipp Oeser changed title from ~~Weight paint mode "Levels" option has really bad UI/UX~~ to Weight paint mode "Levels" option changes active vertexgroup after execution

2020-01-22 10:02:39 +01:00

Philipp Oeser commented

2020-01-22 10:03:01 +01:00

Closed as duplicate of #69760

Philipp Oeser closed this issue

2020-01-22 10:03:01 +01:00

Todd Gillissie commented

2020-01-22 17:50:31 +01:00

It's unintuitive because it's very unclear how the tool panel works.
Here's how it currently works (if it worked properly)...

Select a vertex group.
Choose the "Levels" menu item.
Set the desired values in the tool panel.
There is no confirmation button, or any other clear way to dismiss the tool panel after you've set the values you want.
Choose another vertex group.
Set the values in the tool panel. What? It affects the previously selected vertex group instead?
6a. To make it work, you have to again select the "Levels" menu item after selecting the next vertex group, although there is NO DIFFERENCE in how it appears on the screen. No indication of what vertex group the panel is affecting.

To make it more intuitive, the tool panel would have a way to confirm/dismiss the input values for the selected vertex group, OR the panel would automatically disappear when selecting a different vertex group, forcing you to choose the Levels menu option again, making it clear that the new panel is for the newly selected vertex group.

It's unintuitive because it's very unclear how the tool panel works. Here's how it currently works (if it worked properly)... 1. Select a vertex group. 2. Choose the "Levels" menu item. 3. Set the desired values in the tool panel. 4. There is no confirmation button, or any other clear way to dismiss the tool panel after you've set the values you want. 5. Choose another vertex group. 6. Set the values in the tool panel. What? It affects the previously selected vertex group instead? 6a. To make it work, you have to again select the "Levels" menu item after selecting the next vertex group, although there is NO DIFFERENCE in how it appears on the screen. No indication of what vertex group the panel is affecting. To make it more intuitive, the tool panel would have a way to confirm/dismiss the input values for the selected vertex group, OR the panel would automatically disappear when selecting a different vertex group, forcing you to choose the Levels menu option again, making it clear that the new panel is for the newly selected vertex group.

Todd Gillissie commented

2020-01-22 18:11:43 +01:00

Please re-open this ticket as originally reported, with my additional explanation of the unintuitive nature of the tool.

Philipp Oeser commented

2020-01-22 18:43:53 +01:00

Choose another vertex group.
Set the values in the tool panel. What? It affects the previously selected vertex group instead?

This is the bug already reported in #69760 (you execute the operator, and if you changed the vertexgroup right before that it will undo that change as well resulting in this weird behavior, definitely a bug!)

There is no confirmation button, or any other clear way to dismiss the tool panel after you've set the values you want.
To make it work, you have to again select the "Levels" menu item after selecting the next vertex group, although there is NO DIFFERENCE in how it appears on the screen. No indication of what vertex group the panel is affecting.
To make it more intuitive, the tool panel would have a way to confirm/dismiss the input values for the selected vertex group, OR the panel would automatically disappear when selecting a different vertex group, forcing you to choose the Levels menu option again, making it clear that the new panel is for the newly selected vertex group.

This is all behaving as designed atm. The Adjust Last Operation panel stays as long as you dont execute another operator. Selecting a vertexgroup is not an operator (in contrast to e.g. selecting a vertex - in which case the panel would close), so this panel stays open. In the particular case of this report, this is a bit unintuitive and maybe can be improved upon in the future, but it is not considered a bug atm...
When the real bug will be fixed, this will also be a bit less of an issue.
A "confirm" type of button would not really work out nicely since you wont see your changes in realtime then...

> Choose another vertex group. > Set the values in the tool panel. What? It affects the previously selected vertex group instead? This is the bug already reported in #69760 (you execute the operator, and if you changed the vertexgroup right before that it will undo that change as well resulting in this weird behavior, definitely a bug!) > There is no confirmation button, or any other clear way to dismiss the tool panel after you've set the values you want. > To make it work, you have to again select the "Levels" menu item after selecting the next vertex group, although there is NO DIFFERENCE in how it appears on the screen. No indication of what vertex group the panel is affecting. > To make it more intuitive, the tool panel would have a way to confirm/dismiss the input values for the selected vertex group, OR the panel would automatically disappear when selecting a different vertex group, forcing you to choose the Levels menu option again, making it clear that the new panel is for the newly selected vertex group. This is all behaving as designed atm. The `Adjust Last Operation` panel stays as long as you dont execute another operator. Selecting a vertexgroup is not an operator (in contrast to e.g. selecting a vertex - in which case the panel would close), so this panel stays open. In the particular case of this report, this is a bit unintuitive and maybe can be improved upon in the future, but it is not considered a bug atm... When the real bug will be fixed, this will also be a bit less of an issue. A "confirm" type of button would not really work out nicely since you wont see your changes in realtime then...

Todd Gillissie commented

2020-01-22 18:47:24 +01:00

The panel could still operate exactly as it does, with realtime feedback, but the ability to dismiss the panel when finished would be the expected design. I've never seen any other software behave the way that tool panel does, where it just sits there forever after you're done, potentially allowing for further accidental changes. As suggested, selecting a different vertex group should make it go away too, especially if selecting a vertex makes it go away already. Consistency is good.

Philipp Oeser commented

2020-01-22 19:11:46 +01:00

In #73302#856094, @Gillissie wrote:
The panel could still operate exactly as it does, with realtime feedback, but the ability to dismiss the panel when finished would be the expected design. I've never seen any other software behave the way that tool panel does, where it just sits there forever after you're done, potentially allowing for further accidental changes. As suggested, selecting a different vertex group should make it go away too, especially if selecting a vertex makes it go away already. Consistency is good.

Probably agree here (at least for some situations), but still not a bug...
Please use other channels for user feedback and feature requests: https://wiki.blender.org/wiki/Communication/Contact#User_Feedback_and_Requests
For more information on why this isn't considered a bug, visit: https://wiki.blender.org/wiki/Reference/Not_a_bug

> In #73302#856094, @Gillissie wrote: > The panel could still operate exactly as it does, with realtime feedback, but the ability to dismiss the panel when finished would be the expected design. I've never seen any other software behave the way that tool panel does, where it just sits there forever after you're done, potentially allowing for further accidental changes. As suggested, selecting a different vertex group should make it go away too, especially if selecting a vertex makes it go away already. Consistency is good. Probably agree here (at least for some situations), but still not a bug... Please use other channels for user feedback and feature requests: https://wiki.blender.org/wiki/Communication/Contact#User_Feedback_and_Requests For more information on why this isn't considered a bug, visit: https://wiki.blender.org/wiki/Reference/Not_a_bug

Todd Gillissie commented

2020-01-22 19:15:27 +01:00

Ok, I can post in the requests. I always get the feeling that they aren't looked at though.
Question on this topic... what is the expected behavior if the tool panel is showing for a vertex group operation, then you select a different vertex group and make changes to the still-showing tool panel?

Ok, I can post in the requests. I always get the feeling that they aren't looked at though. Question on this topic... what is the expected behavior if the tool panel is showing for a vertex group operation, then you select a different vertex group and make changes to the still-showing tool panel?

Kartik Shrivastava commented

2020-12-14 14:22:16 +01:00

Added subscriber: @Geeky

Kartik Shrivastava commented

2020-12-14 14:22:16 +01:00

The bug mentioned in this thread is still not fixed in blender 2.91.0 as well. Even there are few more issues related with "Levels" which we're facing.
Can any moderator please guide me to the right files where I can edit the "Levels" in blender source and fix it?
In our case we've been encouraging our art team to switch to Blender and issues like these are quite annoying.

The bug mentioned in this thread is still not fixed in blender 2.91.0 as well. Even there are few more issues related with "Levels" which we're facing. Can any moderator please guide me to the right files where I can edit the "Levels" in blender source and fix it? In our case we've been encouraging our art team to switch to Blender and issues like these are quite annoying.

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Weight paint mode "Levels" option changes active vertexgroup after execution #73302