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Breaked topology in Sculpting new project #63344

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opened 2019-04-06 21:03:01 +02:00 by Paweł Żukowicz · 16 comments
Paweł Żukowicz commented 2019-04-06 21:03:01 +02:00
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System Information
Operating system: win10
Graphics card: 750ti

Blender Version
Broken: blender-2.80.0-git.cc73d59ad580-windows64
Worked: (VID_20190406_203155.mp4)

Short description of error
At first i crate new sculpt project and then just start messing up in this, after few seconds i see this.
Odd behavior on clay strips selected. At first it start to do "cube" shape on mesh and then we could see strange deformations GLITCH_SCULPTING.blend
All settings are in default.

Exact steps for others to reproduce the error
Well... after loading saved file problem does not exist anymore.. i try hard to reproduce that. Short video added. Sory im afraid that i can't help much more

**System Information** Operating system: win10 Graphics card: 750ti **Blender Version** Broken: blender-2.80.0-git.cc73d59ad580-windows64 Worked: ([VID_20190406_203155.mp4](https://archive.blender.org/developer/F6915642/VID_20190406_203155.mp4)) **Short description of error** At first i crate new sculpt project and then just start messing up in this, after few seconds i see this. Odd behavior on clay strips selected. At first it start to do "cube" shape on mesh and then we could see strange deformations [GLITCH_SCULPTING.blend](https://archive.blender.org/developer/F6915638/GLITCH_SCULPTING.blend) All settings are in default. **Exact steps for others to reproduce the error** Well... after loading saved file problem does not exist anymore.. i try hard to reproduce that. Short video added. Sory im afraid that i can't help much more
Paweł Żukowicz commented 2019-04-06 21:03:01 +02:00
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Added subscriber: @zukson

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Sebastian Parborg commented 2019-04-07 20:57:49 +02:00
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Added subscriber: @ZedDB

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Sebastian Parborg commented 2019-04-07 20:57:49 +02:00
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As you state yourself, it doesn't seem to be easily reproducible with the saved files. I tried to reproduce the error by sculpting a bit but couldn't.

If we are going to be able to solve this issue, you need to figure out some easy to reproduce step so others can too trigger this easily.
Otherwise it will be really hard to figure out what is going wrong here.

As you state yourself, it doesn't seem to be easily reproducible with the saved files. I tried to reproduce the error by sculpting a bit but couldn't. If we are going to be able to solve this issue, you need to figure out some easy to reproduce step so others can too trigger this easily. Otherwise it will be really hard to figure out what is going wrong here.
Paweł Żukowicz commented 2019-04-07 23:54:36 +02:00
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Hah.. I found how to reproduce another bug on the same blend file ( diferent pc laptop, same blender version ) ASUS K550V i5 6th gen. and gtx 750m
reproductable. Sorry for voice but I had to be quiet then. VID_20190407_234307.mp4

Hah.. I found how to reproduce another bug on the same blend file ( diferent pc laptop, same blender version ) ASUS K550V i5 6th gen. and gtx 750m reproductable. Sorry for voice but I had to be quiet then. [VID_20190407_234307.mp4](https://archive.blender.org/developer/F6917652/VID_20190407_234307.mp4)
Sebastian Parborg commented 2019-04-10 14:18:11 +02:00
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Added subscriber: @LazyDodo

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Sebastian Parborg commented 2019-04-10 14:18:11 +02:00
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I still can't reproduce this on my end.

@LazyDodo can you reproduce this?

I still can't reproduce this on my end. @LazyDodo can you reproduce this?
Ray molenkamp commented 2019-04-10 15:17:07 +02:00
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I cannot

I cannot
YAFU commented 2019-04-10 16:08:03 +02:00
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YAFU commented 2019-04-10 16:08:03 +02:00
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I'm not a developer here.

But, what is your input device? Are the problems happening with all of them (tablet, mouse)? Are the problems happening only in Sculpt mode? Do you not notice any problems in Texture paint mode for example?

Edit:
Ok, I think I can reproduce the problem. You open the .blend file and do some strokes several times. Undo (Ctrl+Z) many times until you reach the beginning. Repeat some strokes randomly. If you do not see anything strange, you will undo again it many times and you'll do strokes again.
Apparently you must do one more Ctrl+Z step than the number of strokes you did prreviously for the problem occur. Even if you do Ctrl+Z immediately when opening .blend file, then problem happen.
Here using Linux and wacom tablet.

I'm not a developer here. But, what is your input device? Are the problems happening with all of them (tablet, mouse)? Are the problems happening only in Sculpt mode? Do you not notice any problems in Texture paint mode for example? Edit: Ok, I think I can reproduce the problem. You open the .blend file and do some strokes several times. Undo (Ctrl+Z) many times until you reach the beginning. Repeat some strokes randomly. If you do not see anything strange, you will undo again it many times and you'll do strokes again. Apparently you must do one more Ctrl+Z step than the number of strokes you did prreviously for the problem occur. Even if you do Ctrl+Z immediately when opening .blend file, then problem happen. Here using Linux and wacom tablet.
Paweł Żukowicz commented 2019-04-10 22:31:45 +02:00
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Interesting ... sorry for late respond. I use mause and again, ( i update blender too... ) all you have to do is follow what i done on this video... spin that "thing" to see neck area and just swing a few times your mause. I done this again within 10 seconds. It works barely always. And no i only sculpt on this clay strips brush ... i can't trigger that nasty glich with other brushes.VID_20190410_221528.mp4

Interesting ... sorry for late respond. I use mause and again, ( i update blender too... ) all you have to do is follow what i done on this video... spin that "thing" to see neck area and just swing a few times your mause. I done this again within 10 seconds. It works barely always. And no i only sculpt on this clay strips brush ... i can't trigger that nasty glich with other brushes.[VID_20190410_221528.mp4](https://archive.blender.org/developer/F6928943/VID_20190410_221528.mp4)
Paweł Żukowicz commented 2019-04-10 23:01:48 +02:00
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ps: If i save file after bug ( i try it with last i manege to create in video ), blender try to conect broken vertexes after_save.jpg

ps: If i save file after bug ( i try it with last i manege to create in video ), blender try to conect broken vertexes ![after_save.jpg](https://archive.blender.org/developer/F6929039/after_save.jpg)
Stefano Bonicatti commented 2019-04-19 16:12:05 +02:00
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Added subscriber: @Smjert

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Stefano Bonicatti commented 2019-04-19 16:12:05 +02:00
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I can reproduce the problem, even with the latest nightly.

You have to be really careful on what the top left, where's the brush datablock, says.
When opening the project it's on Clay Strips, if you try to reproduce the bug that way you can't (I can't); either you do a Ctrl+Z so that Rotate is selected, or just click in that brush datablock to select Rotate.
You can see also in the video he posted that that is the one selected.

Then to reproduce the issue, I keep sculpting without leaving the pressure on an area at the edge of the model, and after few seconds everything breaks:
blender-bug-#63344.mp4

I can reproduce the problem, even with the latest nightly. You have to be really careful on what the top left, where's the brush datablock, says. When opening the project it's on Clay Strips, if you try to reproduce the bug that way you can't (I can't); either you do a Ctrl+Z so that Rotate is selected, or just click in that brush datablock to select Rotate. You can see also in the video he posted that that is the one selected. Then to reproduce the issue, I keep sculpting without leaving the pressure on an area at the edge of the model, and after few seconds everything breaks: [blender-bug-#63344.mp4](https://archive.blender.org/developer/F6959644/blender-bug-#63344.mp4)
Pablo Dobarro was assigned by Sebastian Parborg 2019-04-19 17:16:01 +02:00
Sebastian Parborg commented 2019-04-19 17:16:01 +02:00
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I can reproduce this now, thanks @Smjert !

I can reproduce this now, thanks @Smjert !
blender-admin commented 2019-04-25 14:07:30 +02:00
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This issue was referenced by 9408023a81

This issue was referenced by 9408023a81843f0c034bab117c654e11d2b7343f
Brecht Van Lommel commented 2019-04-25 14:34:58 +02:00
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Changed status from 'Open' to: 'Resolved'

Changed status from 'Open' to: 'Resolved'
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