Animation Render not working with Hair Particles Blender 3.0 / 3.0.1 #96053

Closed
opened 2022-02-27 04:26:41 +01:00 by Mark Gabbster · 27 comments

System Information
Operating system: Linux Mint, Ubuntu (Latest stable versions)
Graphics card: GTX 1030

Blender Version
Broken: 3.0, 3.0.1
Worked: 2.8

Short description of error
Blender freezes on random frames in between rendering animation when hair particles are in the scene. I have tried on both Ubuntu and Linux mint, blender version 3.0 and 3.0.1. When rendering animation, if there is hair particles in the scene, the rendering freezes randomly at a some frame. I try the same file on Windows 10 and i don't have any issue. The issue only seems to be happening on Linux right now. My Linux machine has 64 gigs of DDR4 ram and 96 cores. A lot more than windows. The view port also seems to be a lot more stable in windows when dealing with particles.

Exact steps for others to reproduce the error
Reporter_1--toUpload.blend
Render animation of any scene file with hair particles attached and issue will happen on Linux systems. Delete the hair particles or hide the particles from the render view and issue goes away.

**System Information** Operating system: Linux Mint, Ubuntu (Latest stable versions) Graphics card: GTX 1030 **Blender Version** Broken: 3.0, 3.0.1 Worked: 2.8 **Short description of error** Blender freezes on random frames in between rendering animation when hair particles are in the scene. I have tried on both Ubuntu and Linux mint, blender version 3.0 and 3.0.1. When rendering animation, if there is hair particles in the scene, the rendering freezes randomly at a some frame. I try the same file on Windows 10 and i don't have any issue. The issue only seems to be happening on Linux right now. My Linux machine has 64 gigs of DDR4 ram and 96 cores. A lot more than windows. The view port also seems to be a lot more stable in windows when dealing with particles. **Exact steps for others to reproduce the error** [Reporter_1--toUpload.blend](https://archive.blender.org/developer/F12942911/Reporter_1--toUpload.blend) Render animation of any scene file with hair particles attached and issue will happen on Linux systems. Delete the hair particles or hide the particles from the render view and issue goes away.
Author

Added subscriber: @Mark-Gabbidon

Added subscriber: @Mark-Gabbidon

Added subscriber: @iss

Added subscriber: @iss

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

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

Do you render with cycles? Does this happen with CPU and/or GPU rendering? Can you check eevee?
Can you run Blender from console with -d argument and upload output?

Even though you say this happens with any file, sample .blend file would be appreciated, so we can test exactly same data.

Do you render with cycles? Does this happen with CPU and/or GPU rendering? Can you check eevee? Can you run Blender from console with -d argument and upload output? Even though you say this happens with any file, sample .blend file would be appreciated, so we can test exactly same data.
Author

Sorry just seeing your reply. Will check evee, gpu with just a simple hair scalp in the file then post results. By the way, i checked with blender 3.1 and issue is still present only on linux. Works without an issue on windows.

Sorry just seeing your reply. Will check evee, gpu with just a simple hair scalp in the file then post results. By the way, i checked with blender 3.1 and issue is still present only on linux. Works without an issue on windows.

Added subscriber: @lichtwerk

Added subscriber: @lichtwerk

@lichtwerk Can you check?

I need to find new live Linux that works with nvidia card, can't check at this moment.

@lichtwerk Can you check? I need to find new live Linux that works with nvidia card, can't check at this moment.
Member

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

Changed status from 'Needs User Info' to: 'Resolved'
Philipp Oeser self-assigned this 2022-03-24 16:58:59 +01:00
Member

@Mark-Gabbidon : got a minimal example file where this happens?

@Mark-Gabbidon : got a minimal example file where this happens?
Member

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

Changed status from 'Resolved' to: 'Needs User Info'
Member

oops, wrong status

oops, wrong status
Philipp Oeser removed their assignment 2022-03-24 16:59:34 +01:00
Author

Yes... sending o{F12942911}. Here is the file. I was not able to simplify it much.. So the only way animation rendering works smoothly is after deleting the hair. The render will get stuck randomly on some frames for some time. It gets stuck for some time during the loading of the data phase and not the actual rendering.

Yes... sending o{[F12942911](https://archive.blender.org/developer/F12942911/Reporter_1--toUpload.blend)}. Here is the file. I was not able to simplify it much.. So the only way animation rendering works smoothly is after deleting the hair. The render will get stuck randomly on some frames for some time. It gets stuck for some time during the loading of the data phase and not the actual rendering.
Author

Please let me know once you have downloaded the file so that i can delete it from this forum.

Please let me know once you have downloaded the file so that i can delete it from this forum.

I wasn't able to reproduce. What is % chance of this issue happenning?

I wasn't able to reproduce. What is % chance of this issue happenning?
Author

Happens with every animation render submission 100 percent. I will record a video with my phone and send link so that you can clearly see the issue.

  • I tried on Ubuntu and on Linux Mint latest stable.
  • Tried Cycles / CPU renders with small sample size 30 to 250 samples to see issue better
  • Tried with each blender stable release starting with 3.0 to latest 3.1.
    Issue:
  • When rendering animation with hair particles, each frame renders or should render on average 8 seconds, but then in between many frames randomly, will get stuck for 2 to 3 minutes while loading the data, before continuing
  • After removing hair, each frame renders on average 8 seconds.
  • Try the same file on windows machine and no issue.
  • We are using a 96 core intel machine

Will send video link of the issue..

Thanks
Mark

Happens with every animation render submission 100 percent. I will record a video with my phone and send link so that you can clearly see the issue. - I tried on Ubuntu and on Linux Mint latest stable. - Tried Cycles / CPU renders with small sample size 30 to 250 samples to see issue better - Tried with each blender stable release starting with 3.0 to latest 3.1. Issue: - When rendering animation with hair particles, each frame renders or should render on average 8 seconds, but then in between many frames randomly, will get stuck for 2 to 3 minutes while loading the data, before continuing - After removing hair, each frame renders on average 8 seconds. - Try the same file on windows machine and no issue. - We are using a 96 core intel machine Will send video link of the issue.. Thanks Mark
Member

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

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

Added subscriber: @OmarEmaraDev

Added subscriber: @OmarEmaraDev
Member

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

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

Do you have persistent data enabled? If yes, does disabling it make the freezing happen more frequently?
Also, I haven't seen the file yet, but does it contain only hairs or do you also instance objects on hairs? If yes, do those objects have volumes?

Do you have persistent data enabled? If yes, does disabling it make the freezing happen more frequently? Also, I haven't seen the file yet, but does it contain only hairs or do you also instance objects on hairs? If yes, do those objects have volumes?
Author

I will check for persistent data and let you know. The file only contains simple blender hair particles. Also it does not matter the file. As long as i add hair to any scene this issue occurs. Here is the video of the issue:

  1. Video Showing the Issue with animated Character with hair:
    https://youtu.be/-t5ka6CxLbU

  2. Video Showing the the issue gone after hair is deleted:
    https://www.youtube.com/watch?v=2ol15_x0Ikg

I will check for persistent data and let you know. The file only contains simple blender hair particles. Also it does not matter the file. As long as i add hair to any scene this issue occurs. Here is the video of the issue: 1) Video Showing the Issue with animated Character with hair: https://youtu.be/-t5ka6CxLbU 2) Video Showing the the issue gone after hair is deleted: https://www.youtube.com/watch?v=2ol15_x0Ikg
Member

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

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

Added subscriber: @PratikPB2123

Added subscriber: @PratikPB2123
Member

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

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

This report looks same to me as described in: #85267 (Rendering animation freezes with particle system)
@Mark-Gabbidon hi, can you confirm?
Also check mentioned workarounds from the report description of #85267

This report looks same to me as described in: #85267 (Rendering animation freezes with particle system) @Mark-Gabbidon hi, can you confirm? Also check mentioned workarounds from the report description of #85267
Member

In #96053#1378815, @PratikPB2123 wrote:
This report looks same to me as described in: #85267 (Rendering animation freezes with particle system)
@Mark-Gabbidon hi, can you confirm?
Also check workarounds from the report description of #85267

poke

> In #96053#1378815, @PratikPB2123 wrote: > This report looks same to me as described in: #85267 (Rendering animation freezes with particle system) > @Mark-Gabbidon hi, can you confirm? > Also check workarounds from the report description of #85267 poke
Member

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

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

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

Thanks again 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. Thanks again for the report. If the problem persists please open a new report with the required information.
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Reference: blender/blender#96053
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