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GPU subdivision option with subdivision surface modifier collapses geometry (AMD GPU) #94936

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opened 2022-01-15 18:27:31 +01:00 by Garek · 100 comments
Garek commented 2022-01-15 18:27:31 +01:00
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System Information
Operating system: Windows-10-10.0.19044-SP0 64 Bits
Graphics card: AMD Radeon HD 7800 Series ATI Technologies Inc. 4.5.14831 Core Profile Context 21.5.2 27.20.20903.8001

Blender Version
Broken: version: 3.1.0 Alpha, branch: master, commit date: 2022-01-11 23:26, hash: ef5d01d98f
Worked: (newest version of Blender that worked as expected)

Short description of error
Subdivision surface modifier with GPU Subdivision enabled produce geometry that appear to be lost

Exact steps for others to reproduce the error

  1. Open default scene.
  2. Add subdivision surface modifier to an object.
  3. Make sure GPU Subdivision option is enabled.
  4. Uncheck Use Limit Surface
  5. Disable GPU Subdivision to see correct result.
    Last two steps are not necessary for recreation of the bug since this change- 118a219e9d
    Subdiv GPU Use Limit Surface 2022-01-15 22-13-33.mp4

NOTE: This bug seems to only occur on AMD cards on Windows.

Reproducible on:

Operating System GPU Driver
Windows 10 AMD Radeon HD 7800 Series 4.5.14831 Core Profile Context 21.5.2 27.20.20903.8001
Windows 10 AMD Radeon (TM) RX 480 4.5.14760 Core Profile Context 20.45.37.01 27.20.14537.1001
Windows 10 AMD Radeon(TM) 535 4.5.14831 Core Profile Context 21.5.2 27.20.21003.8013

Not reproducible on:

Operating System GPU Driver Version
Linux Mint 20 AMD Radeon RX550 4.5.14800 Core Profile Context 21.40
Linux Mint 20 AMD Radeon RX550 4.6 (Core Profile) Mesa 21.3.0-devel
Windows 10 Intel(R) UHD Graphics 620
Windows 10 NVIDIA GeForce GTX 1050 472.39
Linux Mint 20 NVIDIA RTX 2070 510.47.03
Linux NVIDIA GeForce GTX 970M 495.44
Windows-10-10.0.19043-SP0 64 Bits Radeon (TM) RX 480 Graphics 21.30.23.01, 22.2.3, 21.10.2
**System Information** Operating system: Windows-10-10.0.19044-SP0 64 Bits Graphics card: AMD Radeon HD 7800 Series ATI Technologies Inc. 4.5.14831 Core Profile Context 21.5.2 27.20.20903.8001 **Blender Version** Broken: version: 3.1.0 Alpha, branch: master, commit date: 2022-01-11 23:26, hash: `ef5d01d98f` Worked: (newest version of Blender that worked as expected) **Short description of error** Subdivision surface modifier with GPU Subdivision enabled produce geometry that appear to be lost **Exact steps for others to reproduce the error** 1. Open default scene. 2. Add subdivision surface modifier to an object. 3. Make sure GPU Subdivision option is enabled. 4. ~~Uncheck Use Limit Surface~~ 5. ~~Disable GPU Subdivision to see correct result.~~ Last two steps are not necessary for recreation of the bug since this change- 118a219e9d [Subdiv GPU Use Limit Surface 2022-01-15 22-13-33.mp4](https://archive.blender.org/developer/F12806362/Subdiv_GPU_Use_Limit_Surface_2022-01-15_22-13-33.mp4) ------ NOTE: This bug seems to only occur on AMD cards on Windows. **Reproducible on:** | Operating System | GPU | Driver | | ----------------|-------------|---------| | Windows 10 | AMD Radeon HD 7800 Series | 4.5.14831 Core Profile Context 21.5.2 27.20.20903.8001 | | Windows 10 | AMD Radeon (TM) RX 480 | 4.5.14760 Core Profile Context 20.45.37.01 27.20.14537.1001 | | Windows 10 | AMD Radeon(TM) 535 | 4.5.14831 Core Profile Context 21.5.2 27.20.21003.8013 | **Not reproducible on:** | Operating System | GPU | Driver Version | | -----------------|-------------|---------| | Linux Mint 20 | AMD Radeon RX550 | 4.5.14800 Core Profile Context 21.40 | | Linux Mint 20 | AMD Radeon RX550 | 4.6 (Core Profile) Mesa 21.3.0-devel | | Windows 10 | Intel(R) UHD Graphics 620 | | | Windows 10 | NVIDIA GeForce GTX 1050 | 472.39 | | Linux Mint 20 | NVIDIA RTX 2070 | 510.47.03 | | Linux | NVIDIA GeForce GTX 970M | 495.44 |Windows-10-10.0.19043-SP0 64 Bits|Radeon (TM) RX 480 Graphics| 21.30.23.01, 22.2.3, 21.10.2 |
Garek commented 2022-01-15 18:27:31 +01:00
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blender-admin commented 2022-01-15 18:27:31 +01:00
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Pratik Borhade commented 2022-01-17 08:24:19 +01:00
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Added subscriber: @PratikPB2123

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Pratik Borhade commented 2022-01-17 08:28:30 +01:00
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Changed status from 'Needs Triage' to: 'Confirmed'

Changed status from 'Needs Triage' to: 'Confirmed'
Kévin Dietrich commented 2022-02-17 13:38:30 +01:00
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Added subscriber: @kevindietrich

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Kévin Dietrich commented 2022-02-17 13:38:30 +01:00
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Changed status from 'Confirmed' to: 'Needs User Info'

Changed status from 'Confirmed' to: 'Needs User Info'
Kévin Dietrich commented 2022-02-17 13:38:30 +01:00
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Could you try again to reproduce in a build with c5dcfb63d9 applied? (If you cannot compile Blender on your own, you can wait about 24 hours from the time of this comment until the buildbots have delivered a new experimental build). It could be that the bug is actually the same as #94881 but exposed in a different code path. At least I cannot reproduce, but it could be a driver thing.

Could you try again to reproduce in a build with c5dcfb63d9 applied? (If you cannot compile Blender on your own, you can wait about 24 hours from the time of this comment until the buildbots have delivered a new experimental build). It could be that the bug is actually the same as #94881 but exposed in a different code path. At least I cannot reproduce, but it could be a driver thing.
Pratik Borhade commented 2022-02-18 06:24:14 +01:00
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@kevindietrich, can still reproduce on latest buildbot build (9153bf24cb)
I suspect it occurs on AMD GPU only.

@kevindietrich, can still reproduce on latest buildbot build (9153bf24cbf2) I suspect it occurs on AMD GPU only.
Garek commented 2022-02-18 07:14:34 +01:00
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Yeah still happening with that build.

Yeah still happening with that build.
Kévin Dietrich commented 2022-02-18 11:04:49 +01:00
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In #94936#1309670, @PratikPB2123 wrote:
@kevindietrich, can still reproduce on latest buildbot build (9153bf24cb)
I suspect it occurs on AMD GPU only.

I am using my AMD card, and I still cannot reproduce.

From system-info.txt:

renderer:	'Radeon RX550/550 Series (POLARIS12, DRM 3.43.0, 5.4.0-99-generic, LLVM 12.0.1)'
vendor:		'AMD'
version:	'4.6 (Core Profile) Mesa 21.3.0-devel'
> In #94936#1309670, @PratikPB2123 wrote: > @kevindietrich, can still reproduce on latest buildbot build (9153bf24cbf2) > I suspect it occurs on AMD GPU only. I am using my AMD card, and I still cannot reproduce. From `system-info.txt`: ``` renderer: 'Radeon RX550/550 Series (POLARIS12, DRM 3.43.0, 5.4.0-99-generic, LLVM 12.0.1)' vendor: 'AMD' version: '4.6 (Core Profile) Mesa 21.3.0-devel' ```
Pratik Borhade commented 2022-02-18 11:17:33 +01:00
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Can reproduce on Graphics card : AMD Radeon(TM) 535
But doesn't happen with: Graphics card : Intel(R) UHD Graphics 620
Operating system : Windows-10-10.0.19043-SP0 64 Bits

Can reproduce on `Graphics card : AMD Radeon(TM) 535` But doesn't happen with: `Graphics card : Intel(R) UHD Graphics 620` `Operating system : Windows-10-10.0.19043-SP0 64 Bits`
Philipp Oeser commented 2022-02-18 11:32:07 +01:00
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Added subscriber: @lichtwerk

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Philipp Oeser commented 2022-02-18 11:32:07 +01:00
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Cannot reproduce here

**System Information**
Operating system: Linux-5.13.0-0.rc6.45.fc35.x86_64-x86_64-with-glibc2.34.9000 64 Bits
Graphics card: NVIDIA GeForce GTX 970M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 495.44
version: 3.2.0 Alpha, branch: master, commit date: 2022-02-18 07:30, hash: `rB4ad4d8a59c0a`
Cannot reproduce here ``` **System Information** Operating system: Linux-5.13.0-0.rc6.45.fc35.x86_64-x86_64-with-glibc2.34.9000 64 Bits Graphics card: NVIDIA GeForce GTX 970M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 495.44 version: 3.2.0 Alpha, branch: master, commit date: 2022-02-18 07:30, hash: `rB4ad4d8a59c0a` ```
Wannes Malfait commented 2022-02-18 11:52:48 +01:00
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Wannes Malfait commented 2022-02-18 11:52:48 +01:00
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Can't reproduce here either:

**System Information**
Operating system: Windows-10-10.0.19043-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1050/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 472.39

Using latest build (61aaeb3745)

Can't reproduce here either: ``` **System Information** Operating system: Windows-10-10.0.19043-SP0 64 Bits Graphics card: NVIDIA GeForce GTX 1050/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 472.39 ``` Using latest build (61aaeb3745)
Germano Cavalcante commented 2022-02-18 14:21:17 +01:00
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Germano Cavalcante commented 2022-02-18 14:21:17 +01:00
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Can reproduce on:

**System Information**
Operating system: Windows-10-10.0.22000-SP0 64 Bits
Graphics card: Radeon (TM) RX 480 Graphics ATI Technologies Inc. 4.5.14760 Core Profile Context 20.45.37.01 27.20.14537.1001
Can reproduce on: ``` **System Information** Operating system: Windows-10-10.0.22000-SP0 64 Bits Graphics card: Radeon (TM) RX 480 Graphics ATI Technologies Inc. 4.5.14760 Core Profile Context 20.45.37.01 27.20.14537.1001 ```
Garek commented 2022-02-18 14:36:29 +01:00
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I think it's pretty evident at this point that bug is only for old AMD cards on Windows. Unless someone on MacOS with AMD can reproduce, that's only thing left.

I think it's pretty evident at this point that bug is only for old AMD cards on Windows. Unless someone on MacOS with AMD can reproduce, that's only thing left.
Kévin Dietrich commented 2022-02-18 15:55:57 +01:00
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I tried again with the proprietary driver, but is still not reproduced:

renderer:	'Radeon RX550/550 Series'
vendor:		'ATI Technologies Inc.'
version:	'4.5.14800 Core Profile Context 21.40'

Some people can reproduce on both older and newer drivers. So maybe Windows drivers are indeed the culprits.

I tried again with the proprietary driver, but is still not reproduced: ``` renderer: 'Radeon RX550/550 Series' vendor: 'ATI Technologies Inc.' version: '4.5.14800 Core Profile Context 21.40' ``` Some people can reproduce on both older and newer drivers. So maybe Windows drivers are indeed the culprits.
Pratik Borhade commented 2022-02-18 16:29:32 +01:00
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I think we could mark this as "Confirmed" since few of us can reproduce (With necessary edits in task description)

I think we could mark this as "Confirmed" since few of us can reproduce (With necessary edits in task description)
Kévin Dietrich commented 2022-02-18 16:31:01 +01:00
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Changed status from 'Needs User Info' to: 'Confirmed'

Changed status from 'Needs User Info' to: 'Confirmed'
Kévin Dietrich commented 2022-02-24 03:18:13 +01:00
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Can someone who is to reproduce run blender with --debug-gpu and paste the output? Maybe that can give some useful information.

Can someone who is to reproduce run blender with `--debug-gpu` and paste the output? Maybe that can give some useful information.
Garek commented 2022-02-24 08:57:55 +01:00
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I ran blender_debug_gpu_glitchworkaround.cmd and was unable to reproduce issue.
blender_debug_output.txt
blender_system_info.txt
Running blender_debug_gpu.cmd still produces issue.
blender_debug_output.txt
blender_system_info.txt

I ran `blender_debug_gpu_glitchworkaround.cmd` and was unable to reproduce issue. [blender_debug_output.txt](https://archive.blender.org/developer/F12885226/blender_debug_output.txt) [blender_system_info.txt](https://archive.blender.org/developer/F12885227/blender_system_info.txt) Running `blender_debug_gpu.cmd` still produces issue. [blender_debug_output.txt](https://archive.blender.org/developer/F12885229/blender_debug_output.txt) [blender_system_info.txt](https://archive.blender.org/developer/F12885230/blender_system_info.txt)
Kévin Dietrich commented 2022-03-02 01:03:13 +01:00
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@Garek, using the glitchworkaround command actually disables GPU subdivision so that's why it worked :) For another bug fix, I removed the code that is only executed when limit surface is on, at least on the GPU side. Can you try in a new build if it works or not? If that was the cause of the issue, then it should also be broken when limit surface is on and #96104 would probably be the same issue as this.

@Garek, using the `glitchworkaround` command actually disables GPU subdivision so that's why it worked :) For another bug fix, I removed the code that is only executed when limit surface is on, at least on the GPU side. Can you try in a new build if it works or not? If that was the cause of the issue, then it should also be broken when limit surface is on and #96104 would probably be the same issue as this.
Jeroen Bakker commented 2022-03-02 07:53:14 +01:00
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Jeroen Bakker commented 2022-03-02 07:53:14 +01:00
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@mano-wii can you confirm if this is still reproduceable when using the latest AMD drivers?

@mano-wii can you confirm if this is still reproduceable when using the latest AMD drivers?
Jeroen Bakker commented 2022-03-02 08:31:58 +01:00
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looking at the reports we might want to disable compute shaders for 21.5.2 drivers. The driver is a WQHL driver for legacy platforms. I suspect an error there, but I cannot be certain as I don't have the platform to test the driver. We might also want to add the 20.* drivers as well. for the release.

All current drivers for Polaris based GPU have been validated.

looking at the reports we might want to disable compute shaders for 21.5.2 drivers. The driver is a WQHL driver for legacy platforms. I suspect an error there, but I cannot be certain as I don't have the platform to test the driver. We might also want to add the 20.* drivers as well. for the release. All current drivers for Polaris based GPU have been validated.
Germano Cavalcante commented 2022-03-02 16:33:26 +01:00
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In #94936#1315977, @Jeroen-Bakker wrote:
@mano-wii can you confirm if this is still reproduceable when using the latest AMD drivers?

The problem was resolved after I updated to the latest available driver.

Operating system: Windows-10-10.0.22000-SP0 64 Bits
Graphics card: Radeon (TM) RX 480 Graphics ATI Technologies Inc. 4.5.14802 Core Profile/Debug Context 22.2.3 30.0.14029.5006

> In #94936#1315977, @Jeroen-Bakker wrote: > @mano-wii can you confirm if this is still reproduceable when using the latest AMD drivers? The problem was resolved after I updated to the latest available driver. --- Operating system: Windows-10-10.0.22000-SP0 64 Bits Graphics card: Radeon (TM) RX 480 Graphics ATI Technologies Inc. 4.5.14802 Core Profile/Debug Context 22.2.3 30.0.14029.5006
Garek commented 2022-03-03 20:31:08 +01:00
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@kevindietrich since buildbot wasn't working until recently I could not test new changes.

Using 3.1 with hash: 9c2e385509 bug is present even without unchecking Use Limit Surface, it's appearance is same (shows only one line in wireframe, like in original report video)
Same with 3.2 hash: eabdcdcd44.
I didn't updated drivers yet, actually I'm not sure if I can at all.

@kevindietrich since buildbot wasn't working until recently I could not test new changes. Using 3.1 with hash: `9c2e385509` bug is present even without unchecking `Use Limit Surface`, it's appearance is same (shows only one line in wireframe, like in original report video) Same with 3.2 hash: `eabdcdcd44`. I didn't updated drivers yet, actually I'm not sure if I can at all.
Kévin Dietrich commented 2022-03-04 08:36:21 +01:00
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@Garek, thanks for testing. So #96104 is indeed the same issue (the only code path affected by "Use Limit Surface" was removed).

@Garek, thanks for testing. So #96104 is indeed the same issue (the only code path affected by "Use Limit Surface" was removed).
Pratik Borhade changed title from Subdivision: GPU option without Use Limit Surface collapses geometry to Subdivision: GPU option with subdivision surface modifier collapses geometry 2022-03-04 10:38:16 +01:00
Germano Cavalcante commented 2022-03-11 23:34:32 +01:00
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Pratik Borhade commented 2022-03-12 17:47:46 +01:00
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Pratik Borhade commented 2022-03-16 05:05:09 +01:00
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Alfred Borg commented 2022-03-18 12:49:13 +01:00
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Changed status from 'Confirmed' to: 'Resolved'

Changed status from 'Confirmed' to: 'Resolved'
Alfred Borg self-assigned this 2022-03-18 12:49:13 +01:00
Alfred Borg commented 2022-03-18 12:49:13 +01:00
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The issue was resolved when the GPU Subdivision was turned off in the Preferences as was suggested by your team. It seems that my PC has an old AMD since there have not been any Driver updates. I also have installed Windows 11 a while back and it has been kept up to date.
Thanks for resolving the issue for me.

The issue was resolved when the GPU Subdivision was turned off in the Preferences as was suggested by your team. It seems that my PC has an old AMD since there have not been any Driver updates. I also have installed Windows 11 a while back and it has been kept up to date. Thanks for resolving the issue for me.
Germano Cavalcante commented 2022-03-18 13:07:39 +01:00
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Changed status from 'Resolved' to: 'Confirmed'

Changed status from 'Resolved' to: 'Confirmed'
Alfred Borg was unassigned by Germano Cavalcante 2022-03-18 13:07:39 +01:00
Germano Cavalcante commented 2022-03-18 13:07:39 +01:00
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Even though the problem isn't directly in Blender, let's keep the report open a little longer in order to track reports about the same problem.

Note that disabling GPU Subdivision is not actually a bug fix.

Updating GPU drivers fixed it even in cases of older GPUs (like Radeon RX 480). It's good to investigate why it didn't solve in your case.

Even though the problem isn't directly in Blender, let's keep the report open a little longer in order to track reports about the same problem. Note that disabling `GPU Subdivision` is not actually a bug fix. Updating GPU drivers fixed it even in cases of older GPUs (like Radeon RX 480). It's good to investigate why it didn't solve in your case.
Pratik Borhade commented 2022-03-21 04:35:15 +01:00
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Pratik Borhade commented 2022-03-21 04:54:58 +01:00
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Erick Tukuniata commented 2022-03-21 09:24:54 +01:00
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In my case even though I have updated my drivers, I m still getting the problem, but turning off GPU subdivision in the preferences solved it.

In my case even though I have updated my drivers, I m still getting the problem, but turning off GPU subdivision in the preferences solved it.
Pratik Borhade commented 2022-03-25 13:12:45 +01:00
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Pratik Borhade commented 2022-03-25 13:33:46 +01:00
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In #94936#1326584, @ErickNyanduKabongo wrote:
In my case even though I have updated my drivers, I m still getting the problem, but turning off GPU subdivision in the preferences solved it.

Hi, GPU model of AMD Radeon R7 200 Series has been moved to legacy support: https://www.amd.com/en/support/kb/faq/gpu-630
So upgrading them is less likely to fix the problem.

I don't think there is any proper fix yet.

> In #94936#1326584, @ErickNyanduKabongo wrote: > In my case even though I have updated my drivers, I m still getting the problem, but turning off GPU subdivision in the preferences solved it. Hi, GPU model of AMD Radeon R7 200 Series has been moved to legacy support: https://www.amd.com/en/support/kb/faq/gpu-630 So upgrading them is less likely to fix the problem. I don't think there is any proper fix yet.
Germano Cavalcante commented 2022-04-06 23:27:12 +02:00
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Pratik Borhade commented 2022-04-09 11:45:48 +02:00
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Philipp Oeser commented 2022-04-13 11:15:52 +02:00
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Talked to @kevindietrich , setting to High prio (since it is a bug in a new feature according to the playbook

Talked to @kevindietrich , setting to High prio (since it is a bug in a new feature according to the [playbook ](https://wiki.blender.org/wiki/Process/Bug_Reports/Triaging_Playbook)
Philipp Oeser changed title from Subdivision: GPU option with subdivision surface modifier collapses geometry to GPU subdivision option with subdivision surface modifier collapses geometry 2022-04-13 11:16:33 +02:00
Pratik Borhade commented 2022-04-14 17:57:17 +02:00
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Jason commented 2022-04-14 18:41:44 +02:00
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Jason commented 2022-04-14 18:41:44 +02:00
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In #94936#1313102, @kevindietrich wrote:
Can someone who is to reproduce run blender with --debug-gpu and paste the output? Maybe that can give some useful information.

I humbly offer what I think is a related issue I reported here:

https://developer.blender.org/T97330

I don't see a geometry collapse, rather a crash. In a comment on my issue, I included the requested output.

> In #94936#1313102, @kevindietrich wrote: > Can someone who is to reproduce run blender with `--debug-gpu` and paste the output? Maybe that can give some useful information. I humbly offer what I think is a related issue I reported here: https://developer.blender.org/T97330 I don't see a geometry collapse, rather a crash. In a comment on my issue, I included the requested output.
Richard Antalik commented 2022-04-14 22:49:35 +02:00
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Pratik Borhade commented 2022-04-15 20:16:51 +02:00
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Kévin Dietrich commented 2022-05-05 17:00:02 +02:00
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Lowering the priority on this one as no one in the module team seem to have the right hardware to reproduce and fix this.

Lowering the priority on this one as no one in the module team seem to have the right hardware to reproduce and fix this.
Pratik Borhade commented 2022-05-27 14:43:23 +02:00
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Pratik Borhade changed title from GPU subdivision option with subdivision surface modifier collapses geometry to GPU subdivision option with subdivision surface modifier collapses geometry (AMD GPU) 2022-07-31 15:28:00 +02:00
Germano Cavalcante commented 2022-08-01 23:14:51 +02:00
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