Sculpt Mode Grab Active Vertex and Dynamic Mesh Preview Bug. #69728

New Issue

Zino Guerr · 2019-09-10T19:39:06+02:00

Zino Guerr commented

2019-09-10 19:39:06 +02:00

System Information
Operating system: Windows-10-10.0.1709 64 Bits
Graphics card: GeForce GTX 1050 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 436.30

Blender Version
Broken: version: 2.81 (sub 10), branch: master, commit date: 2019-09-10 15:51, hash: 01a3a9c818

Short description of error
Grab Active Vertex and Dynamic Mesh Preview are not working, You get locked and the UI flickers.
You have to kill Blender from the Task Manager and sometimes simply Crashes.

Exact steps for others to reproduce the error
Have an Object with Subdivison Modifier->Sculpt Mode-> Grab Brush->Enable Grab Active Vertex(Brush Settings).

Demo of the Bug:

Blend File:
cowbpy2.blend

**System Information** Operating system: Windows-10-10.0.1709 64 Bits Graphics card: GeForce GTX 1050 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 436.30 **Blender Version** Broken: version: 2.81 (sub 10), branch: master, commit date: 2019-09-10 15:51, hash: `01a3a9c818` **Short description of error** Grab Active Vertex and Dynamic Mesh Preview are not working, You get locked and the UI flickers. You have to kill Blender from the Task Manager and sometimes simply Crashes. **Exact steps for others to reproduce the error** Have an Object with Subdivison Modifier->Sculpt Mode-> Grab Brush->Enable Grab Active Vertex(Brush Settings). Demo of the Bug: ![Draw.gif](https://archive.blender.org/developer/F7731861/Draw.gif) Blend File: [cowbpy2.blend](https://archive.blender.org/developer/F7731812/cowbpy2.blend)

Zino Guerr commented

2019-09-10 19:39:06 +02:00

Added subscriber: @Znio.G

ThinkingPolygons commented

2019-09-10 20:30:10 +02:00

Added subscriber: @ThinkingPolygons

ThinkingPolygons commented

2019-09-10 20:30:10 +02:00

Yes, I can confirm. It never worked, even in the sculpt branch. (Windows)

Yes, I can confirm. It never worked, even in the sculpt branch. (Windows) ![b67ec3ae67a0f44c7ba9b937ed87653af595d6ea.gif](https://archive.blender.org/developer/F7731998/b67ec3ae67a0f44c7ba9b937ed87653af595d6ea.gif)

Pablo Dobarro was assigned by Brecht Van Lommel

2019-09-11 09:42:04 +02:00

Pablo Dobarro commented

2019-09-11 14:02:07 +02:00

I don't have a Windows PC to debug this. Does this patch fix the issue? #69728.diff

I don't have a Windows PC to debug this. Does this patch fix the issue? [#69728.diff](https://archive.blender.org/developer/F7734943/T69728.diff)

Zino Guerr commented

2019-09-11 21:31:05 +02:00

In #69728#773622, @PabloDobarro wrote:
I don't have a Windows PC to debug this. Does this patch fix the issue? #69728.diff

I applied the patch but didn't work for me,but this time it didn't crash when you try to click the Menus & Workspaces..etc, I guess we need a Developer with Windows OS to figure this out.

> In #69728#773622, @PabloDobarro wrote: > I don't have a Windows PC to debug this. Does this patch fix the issue? [#69728.diff](https://archive.blender.org/developer/F7734943/T69728.diff) I applied the patch but didn't work for me,but this time it didn't crash when you try to click the Menus & Workspaces..etc, I guess we need a Developer with Windows OS to figure this out.

Pablo Dobarro commented

2019-09-11 22:14:47 +02:00

@Znio.G What does this patch do on Windows? Does it render something when sculpting with a subdivision surface modifier?

Zino Guerr commented

2019-09-11 22:34:26 +02:00

In #69728#773864, @PabloDobarro wrote:
@Znio.G What does this patch do on Windows? Does it render something when sculpting with a subdivision surface modifier?

No it doesn't Render anything, it's same as before Brush Cursor is locked and only System Cursor can be moved.

> In #69728#773864, @PabloDobarro wrote: > @Znio.G What does this patch do on Windows? Does it render something when sculpting with a subdivision surface modifier? No it doesn't Render anything, it's same as before Brush Cursor is locked and only System Cursor can be moved.

Chris Chuipka commented

2019-09-11 23:41:06 +02:00

Added subscriber: @ChrisWillC

Chris Chuipka commented

2019-09-11 23:41:06 +02:00

Only seems to work when you zoom in and out.

Only seems to work when you zoom in and out. ![GrabActiveVert.gif](https://archive.blender.org/developer/F7736645/GrabActiveVert.gif)

Pablo Dobarro commented

2019-09-12 01:32:38 +02:00

@ChrisWillC Does D5761 work on Windows?

@ChrisWillC Does [D5761](https://archive.blender.org/developer/D5761) work on Windows?

Chris Chuipka commented

2019-09-12 03:10:45 +02:00

@PabloDobarro It doesn't seem to be working.

Zino Guerr commented

2019-09-12 09:47:16 +02:00

I managed to get it to draw like Chris but without zooming, it has to do with the Gizmos, i mapped the Viewport Gizmos toggle to a hotkey and have to be on first and it gave this effect, but the moment you click it crashes.

For the Pose tool i only get a single point drawn.

Hope this can help a bit.

I managed to get it to draw like Chris but without zooming, it has to do with the Gizmos, i mapped the Viewport Gizmos toggle to a hotkey and have to be on first and it gave this effect, but the moment you click it crashes. ![Bg.gif](https://archive.blender.org/developer/F7738558/Bg.gif) For the Pose tool i only get a single point drawn. ![Pose.gif](https://archive.blender.org/developer/F7738582/Pose.gif) Hope this can help a bit.

Jeroen Bakker commented

2019-09-17 11:13:04 +02:00

Added subscriber: @Jeroen-Bakker

Jeroen Bakker commented

2019-09-17 11:13:04 +02:00

I tried on windows, but wasn't able to reproduce it in current master.

Vertex commented

2019-09-17 12:25:10 +02:00

Added subscriber: @VertexPainter

Vertex commented

2019-09-17 12:25:10 +02:00

Tried it on blender 76650402f3, windows 7x64, rx480 (19.9.2 drivers).
No lock and UI doesnt flicker, but blender crashes if i'm using grab brush. Sometimes it crash right away, sometimes after tweaking with grab brush and rotating viewport.

Tried it on blender 76650402f300, windows 7x64, rx480 (19.9.2 drivers). No lock and UI doesnt flicker, but blender crashes if i'm using grab brush. Sometimes it crash right away, sometimes after tweaking with grab brush and rotating viewport.

Zino Guerr commented

2019-09-17 12:26:40 +02:00

Hi @Jeroen-Bakker, for me it's still the same with a clean new build, i have to use the Viewport Gizmos shortcut to get out of the locked state, is this a hardware specific issue?.

Hi @Jeroen-Bakker, for me it's still the same with a clean new build, i have to use the Viewport Gizmos shortcut to get out of the locked state, is this a hardware specific issue?. ![Still.gif](https://archive.blender.org/developer/F7752766/Still.gif)

Metin Seven commented

2019-09-17 12:48:15 +02:00

Added subscriber: @MetinSeven-1

Metin Seven commented

2019-09-17 12:48:15 +02:00

Tried it on a simple quad sphere with Subdivision modifier, no issues.

Tried the example scene as well, also no problems.

Blender 2.81 Alpha
September 16, 23:16:10 - 76650402f3
Windows 10 Pro 64-bit
NVIDIA GeForce RTX 2080 Ti.

Tried it on a simple quad sphere with Subdivision modifier, no issues. Tried the example scene as well, also no problems. Blender 2.81 Alpha September 16, 23:16:10 - 76650402f300 Windows 10 Pro 64-bit NVIDIA GeForce RTX 2080 Ti.

Martin Felke commented

2019-09-17 12:56:08 +02:00

Added subscriber: @scorpion81

Martin Felke commented

2019-09-17 12:56:08 +02:00

Tried the provided blend with 76650402f3 and a master version from september 13th.
Except maybe the extraneous green dot "far away" from the active vertex I also had no flicker or locking.
Windows 10 Pro 64-bit
Intel UHD 620 (laptop) (Lol, a miracle 2.8 seems to run flawlessly with this hardware :) )

Tried the provided blend with 76650402f300 and a master version from september 13th. Except maybe the extraneous green dot "far away" from the active vertex I also had no flicker or locking. Windows 10 Pro 64-bit Intel UHD 620 (laptop) (Lol, a miracle 2.8 seems to run flawlessly with this hardware :) )

Jeroen Bakker commented

2019-09-17 13:47:50 +02:00

Hi @Znio.G

Can you update your graphics drivers there are almost a year old, might be a driver issue.

Hi @Znio.G Can you update your graphics drivers there are almost a year old, might be a driver issue.

George Harris commented

2019-09-17 13:58:18 +02:00

Added subscriber: @rambobl

George Harris commented

2019-09-17 13:58:18 +02:00

This comment was removed by @rambobl

*This comment was removed by @rambobl*

Lucas commented

2019-09-17 13:58:42 +02:00

Added subscriber: @Xorrito

Lucas commented

2019-09-17 13:58:42 +02:00

Keeps happening
Can't update graphic drivers since Nvidia introduced many bugs on my card
Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: GeForce GTX 770/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 399.24
Blender Version
Broken: version: 2.81 (sub 11), branch: master, commit date: 2019-09-16 21:02, hash: 76650402f3

Keeps happening Can't update graphic drivers since Nvidia introduced many bugs on my card Operating system: Windows-10-10.0.17134 64 Bits Graphics card: GeForce GTX 770/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 399.24 **Blender Version** Broken: version: 2.81 (sub 11), branch: master, commit date: 2019-09-16 21:02, hash: `76650402f3`

Brecht Van Lommel commented

2019-09-17 14:28:38 +02:00

Added subscriber: @brecht

Brecht Van Lommel commented

2019-09-17 14:28:38 +02:00

I fixed the drawing glitches I could reproduce.

I don't see any crashes though. We are missing a .blend file and clear steps to reproduce those.

I fixed the drawing glitches I could reproduce. I don't see any crashes though. We are missing a .blend file and clear steps to reproduce those.

Pablo Dobarro commented

2019-09-17 14:32:40 +02:00

@brecht I know where those crashes come from, F7734943 should fix it. I'll create a patch just for that.

@brecht I know where those crashes come from, [F7734943](https://archive.blender.org/developer/F7734943/T69728.diff) should fix it. I'll create a patch just for that.

Lucas commented

2019-09-17 20:13:16 +02:00

2019-09-17 14-07-04.mp4
It kinda works now on
Blender Version
Broken: version: 2.81 (sub 11), branch: master, commit date: 2019-09-17 14:22, hash: 884a385287

[2019-09-17 14-07-04.mp4](https://archive.blender.org/developer/F7753730/2019-09-17_14-07-04.mp4) It kinda works now on **Blender Version** Broken: version: 2.81 (sub 11), branch: master, commit date: 2019-09-17 14:22, hash: `884a385287`

TheRedWaxPolice commented

2019-09-17 20:26:21 +02:00

Added subscriber: @TheRedWaxPolice

TheRedWaxPolice commented

2019-09-17 20:26:21 +02:00

Yes, the mesh preview only shows up if you activate any of the transform tools first.

2019-09-17_19-06-55.mp4

Yes, the mesh preview only shows up if you activate any of the transform tools first. [2019-09-17_19-06-55.mp4](https://archive.blender.org/developer/F7753750/2019-09-17_19-06-55.mp4)

Zino Guerr commented

2019-09-17 21:17:54 +02:00

In #69728#777688, @Jeroen-Bakker wrote:
Hi @Znio.G

Can you update your graphics drivers there are almost a year old, might be a driver issue.

I have updated the driver to the latest one Tue Sep 10, 2019 and it's exactly what the guys are showing in the videos.

Here is a blend file without activating the transform tools, the moment you do that and use the grab brush the cage gets drawn but after using it for a while it crashes..............the Pose Brush is now working correctly though.
Bug3.blend

> In #69728#777688, @Jeroen-Bakker wrote: > Hi @Znio.G > > Can you update your graphics drivers there are almost a year old, might be a driver issue. I have updated the driver to the latest one Tue Sep 10, 2019 and it's exactly what the guys are showing in the videos. Here is a blend file without activating the transform tools, the moment you do that and use the grab brush the cage gets drawn but after using it for a while it crashes..............the Pose Brush is now working correctly though. [Bug3.blend](https://archive.blender.org/developer/F7753804/Bug3.blend)

Metin Seven commented

2019-09-18 08:35:53 +02:00

Removed subscriber: @MetinSeven-1

George Harris commented

2019-09-18 09:32:32 +02:00

Removed subscriber: @rambobl

Hugo Lamarche commented

2019-11-26 15:05:09 +01:00

Added subscriber: @Abrases

Hugo Lamarche commented

2019-11-26 15:05:09 +01:00

Hi,

I have tested this on my home computer and work computer with the same result as Lucas.

Doesn't work until I activate a gizmo, still work after disabling the gizmo

Both are under Windows 10
Home : lastest update
Work : 1803

Home : Gigabyte RTX 2070 Gaming OC, Latest Nvidia Drivers (441.34)
Work : GTX 1070, 440.97

Home : Ryzen 5 3600X with 32 Go DDR4
Work : Xeon W-2135 with 128 Go DDR4

I've build it locally and I have the issue so I might take some time to try to understand why this happen. In the meantime if you can't reproduce it but have an idea about a fix I could try the fix for you.

Hi, I have tested this on my home computer and work computer with the same result as Lucas. - Doesn't work until I activate a gizmo, still work after disabling the gizmo Both are under Windows 10 Home : lastest update Work : 1803 Home : Gigabyte RTX 2070 Gaming OC, Latest Nvidia Drivers (441.34) Work : GTX 1070, 440.97 Home : Ryzen 5 3600X with 32 Go DDR4 Work : Xeon W-2135 with 128 Go DDR4 I've build it locally and I have the issue so I might take some time to try to understand why this happen. In the meantime if you can't reproduce it but have an idea about a fix I could try the fix for you.

Hugo Lamarche commented

2019-11-27 16:33:43 +01:00

So after some investigation why enabling gizmo make it work I found that by adding this code at paint_cursor.c:1487 "fix" this issue

GLuint buffer[MAXPICKBUF];
rcti rect;

rect.xmin = rect.ymin = 0.0f;
rect.xmax = rect.ymax = 0.0f;
GPU_select_begin(buffer, ARRAY_SIZE(buffer), &rect, GPU_SELECT_NEAREST_FIRST_PASS, 0);
GPU_select_end();

I don' t understand quite the why tho ... (yet)

So it seems to be related to glClear(GL_DEPTH_BUFFER_BIT); in fact this calling this just one time before sculpt_geometry_preview_lines_draw is fixing the issue as well.

So after some investigation why enabling gizmo make it work I found that by adding this code at paint_cursor.c:1487 "fix" this issue GLuint buffer[MAXPICKBUF]; rcti rect; rect.xmin = rect.ymin = 0.0f; rect.xmax = rect.ymax = 0.0f; GPU_select_begin(buffer, ARRAY_SIZE(buffer), &rect, GPU_SELECT_NEAREST_FIRST_PASS, 0); GPU_select_end(); I don' t understand quite the why tho ... (yet) **So it seems to be related to glClear(GL_DEPTH_BUFFER_BIT); in fact this calling this just one time before sculpt_geometry_preview_lines_draw is fixing the issue as well.**

Pablo Dobarro commented

2020-01-09 22:38:23 +01:00

Changed status from 'Needs Developer To Reproduce' to: 'Resolved'

Pablo Dobarro closed this issue

2020-01-09 22:38:23 +01:00

Pablo Dobarro commented

2020-01-09 22:38:23 +01:00

The issue reported was fixed for Windows as far as I know. If there are any other bugs in this feature, please open another bug report describing them.

Zino Guerr commented

2020-01-11 17:10:22 +01:00

In #69728#845523, @PabloDobarro wrote:
The issue reported was fixed for Windows as far as I know. If there are any other bugs in this feature, please open another bug report describing them.

Okay, there is still one, I'll make another report for it

> In #69728#845523, @PabloDobarro wrote: > The issue reported was fixed for Windows as far as I know. If there are any other bugs in this feature, please open another bug report describing them. Okay, there is still one, I'll make another report for it

Vyacheslav Kobozev commented

2021-07-29 04:24:50 +02:00

Added subscriber: @Vyach

Vyacheslav Kobozev commented

2021-07-29 04:24:58 +02:00

Removed subscriber: @Vyach

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Sculpt Mode Grab Active Vertex and Dynamic Mesh Preview Bug. #69728