Old files with subsurf modifier requite long time to load #74152

New Issue

Josesk Leufredo Volpe · 2020-02-24T08:27:17+01:00

2020-02-24 08:27:17 +01:00

System Information
Operating system: Windows 10 x64 and Linux Regata OS
Graphics card: Intel HD Graphics 620 Kaby Lake
Screen resolution: 1366x768
CPU: Intel Core i3 7100U quad-core 2.4GHz
RAM: 4gb DDR4

Blender Version
Broken: 2.81
Worked: 2.79

Description
Old files with subsurf modifier requite long time to load.
When subsurf modifier is disabled in Blender 2.79 ans file is saved, it loads quickly.

3D Model working on Blender 2.79:

Steps to reproduce
militar.blend

Open the file

**System Information** Operating system: Windows 10 x64 and Linux Regata OS Graphics card: Intel HD Graphics 620 Kaby Lake Screen resolution: 1366x768 CPU: Intel Core i3 7100U quad-core 2.4GHz RAM: 4gb DDR4 **Blender Version** Broken: 2.81 Worked: 2.79 **Description** Old files with subsurf modifier requite long time to load. When subsurf modifier is disabled in Blender 2.79 ans file is saved, it loads quickly. 3D Model working on Blender 2.79: ![Captura de Tela (249).png](https://archive.blender.org/developer/F8365889/Captura_de_Tela__249_.png) **Steps to reproduce** [militar.blend](https://archive.blender.org/developer/F8367069/militar.blend) Open the file

Josesk Leufredo Volpe commented

2020-02-24 08:27:17 +01:00

Added subscriber: @JoseskVolpe

Marco commented

2020-02-24 12:24:57 +01:00

Added subscriber: @nacioss

Marco commented

2020-02-24 12:24:57 +01:00

Please can you attach the blend file too?

Evan Wilson commented

2020-02-24 12:52:48 +01:00

Added subscriber: @EAW

Evan Wilson commented

2020-02-24 12:52:48 +01:00

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

Evan Wilson commented

2020-02-24 12:52:48 +01:00

Thank you for the report.

Is the issue occurring with only this file, or other files as well?

From your debug log:

NTShader Nodetree/Shading Component/MATERIAL_UPDATE() depends on
MABoina/Shading Component/MATERIAL_UPDATE() via 'Material -> Node'
NTShader Nodetree/Shading Component/MATERIAL_UPDATE() via 'Material's NTree'

Dependency cycle detected:

MAMaterial.004/Shading Component/MATERIAL_UPDATE() depends on
NTShader Nodetree/Shading Component/MATERIAL_UPDATE() via 'Material's NTree'
MAMaterial.004/Shading Component/MATERIAL_UPDATE() via 'Material -> Node'

Dependency cycle detected:

NTShader Nodetree/Shading Component/MATERIAL_UPDATE() depends on
MAMaterial/Shading Component/MATERIAL_UPDATE() via 'Material -> Node'
NTShader Nodetree/Shading Component/MATERIAL_UPDATE() via 'Material's NTree'

Detected 3 dependency cycles```

Create a copy of the file, open it in 2.79, and delete those materials.  Then try opening it in 2.81+

Thank you for the report. Is the issue occurring with only this file, or other files as well? From your debug log: ```Dependency cycle detected: ``` NTShader Nodetree/Shading Component/MATERIAL_UPDATE() depends on MABoina/Shading Component/MATERIAL_UPDATE() via 'Material -> Node' NTShader Nodetree/Shading Component/MATERIAL_UPDATE() via 'Material's NTree' ``` Dependency cycle detected: ``` MAMaterial.004/Shading Component/MATERIAL_UPDATE() depends on NTShader Nodetree/Shading Component/MATERIAL_UPDATE() via 'Material's NTree' MAMaterial.004/Shading Component/MATERIAL_UPDATE() via 'Material -> Node' ``` Dependency cycle detected: ``` NTShader Nodetree/Shading Component/MATERIAL_UPDATE() depends on MAMaterial/Shading Component/MATERIAL_UPDATE() via 'Material -> Node' NTShader Nodetree/Shading Component/MATERIAL_UPDATE() via 'Material's NTree' ``` Detected 3 dependency cycles``` Create a copy of the file, open it in 2.79, and delete those materials. Then try opening it in 2.81+

Josesk Leufredo Volpe commented

2020-02-24 20:12:02 +01:00

In #74152#879049, @EAW wrote:
Thank you for the report.

Is the issue occurring with only this file, or other files as well?

From your debug log:

  NTShader Nodetree/Shading Component/MATERIAL_UPDATE() depends on
  MABoina/Shading Component/MATERIAL_UPDATE() via 'Material -> Node'
  NTShader Nodetree/Shading Component/MATERIAL_UPDATE() via 'Material's NTree'
Dependency cycle detected:
  MAMaterial.004/Shading Component/MATERIAL_UPDATE() depends on
  NTShader Nodetree/Shading Component/MATERIAL_UPDATE() via 'Material's NTree'
  MAMaterial.004/Shading Component/MATERIAL_UPDATE() via 'Material -> Node'
Dependency cycle detected:
  NTShader Nodetree/Shading Component/MATERIAL_UPDATE() depends on
  MAMaterial/Shading Component/MATERIAL_UPDATE() via 'Material -> Node'
  NTShader Nodetree/Shading Component/MATERIAL_UPDATE() via 'Material's NTree'
Detected 3 dependency cycles```

Create a copy of the file, open it in 2.79, and delete those materials.  Then try opening it in 2.81+

The issue still occurred, again with the Phyton block error, i'd do wait over an hour for the file to load and the model is not rendering

I've generated these 2 files again in this process:
blender_system_info.txt

blender_debug_output.txt

> In #74152#879049, @EAW wrote: > Thank you for the report. > > Is the issue occurring with only this file, or other files as well? > > From your debug log: > > ```Dependency cycle detected: > NTShader Nodetree/Shading Component/MATERIAL_UPDATE() depends on > MABoina/Shading Component/MATERIAL_UPDATE() via 'Material -> Node' > NTShader Nodetree/Shading Component/MATERIAL_UPDATE() via 'Material's NTree' > Dependency cycle detected: > MAMaterial.004/Shading Component/MATERIAL_UPDATE() depends on > NTShader Nodetree/Shading Component/MATERIAL_UPDATE() via 'Material's NTree' > MAMaterial.004/Shading Component/MATERIAL_UPDATE() via 'Material -> Node' > Dependency cycle detected: > NTShader Nodetree/Shading Component/MATERIAL_UPDATE() depends on > MAMaterial/Shading Component/MATERIAL_UPDATE() via 'Material -> Node' > NTShader Nodetree/Shading Component/MATERIAL_UPDATE() via 'Material's NTree' > Detected 3 dependency cycles``` > > Create a copy of the file, open it in 2.79, and delete those materials. Then try opening it in 2.81+ The issue still occurred, again with the Phyton block error, i'd do wait over an hour for the file to load and the model is not rendering I've generated these 2 files again in this process: [blender_system_info.txt](https://archive.blender.org/developer/F8367063/blender_system_info.txt) [blender_debug_output.txt](https://archive.blender.org/developer/F8367062/blender_debug_output.txt)

Josesk Leufredo Volpe commented

2020-02-24 20:13:12 +01:00

In #74152#879014, @nacioss wrote:
Please can you attach the blend file too?

Yes
militar.blend

> In #74152#879014, @nacioss wrote: > Please can you attach the blend file too? Yes [militar.blend](https://archive.blender.org/developer/F8367069/militar.blend)

Josesk Leufredo Volpe commented

2020-02-26 19:36:31 +01:00

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

Richard Antalik commented

2020-02-28 16:32:05 +01:00

Added subscriber: @iss

Richard Antalik commented

2020-02-28 16:32:05 +01:00

After disabling subsurf modifiers, opening in 2.8 was fast.

I can only suggest to fix geometry in 2.79, so it doesn't cause problems to openSubdiv.

Not sure if opening old files with subsurf causing this kind of problem would be considered a bug.

After disabling subsurf modifiers, opening in 2.8 was fast. I can only suggest to fix geometry in 2.79, so it doesn't cause problems to openSubdiv. Not sure if opening old files with subsurf causing this kind of problem would be considered a bug.

Josesk Leufredo Volpe commented

2020-03-01 03:42:31 +01:00

In #74152#882274, @iss wrote:
After disabling subsurf modifiers, opening in 2.8 was fast.

I can only suggest to fix geometry in 2.79, so it doesn't cause problems to openSubdiv.

Not sure if opening old files with subsurf causing this kind of problem would be considered a bug.

¿So, this is happening because Blender updated how subsurface works, and it broke old files that use it?

> In #74152#882274, @iss wrote: > After disabling subsurf modifiers, opening in 2.8 was fast. > > I can only suggest to fix geometry in 2.79, so it doesn't cause problems to openSubdiv. > > Not sure if opening old files with subsurf causing this kind of problem would be considered a bug. ¿So, this is happening because Blender updated how subsurface works, and it broke old files that use it?

Richard Antalik commented

2020-03-02 03:18:00 +01:00

In #74152#882816, @JoseskVolpe wrote:

In #74152#882274, @iss wrote:
After disabling subsurf modifiers, opening in 2.8 was fast.

I can only suggest to fix geometry in 2.79, so it doesn't cause problems to openSubdiv.

Not sure if opening old files with subsurf causing this kind of problem would be considered a bug.

¿So, this is happening because Blender updated how subsurface works, and it broke old files that use it?

Yes.

> In #74152#882816, @JoseskVolpe wrote: >> In #74152#882274, @iss wrote: >> After disabling subsurf modifiers, opening in 2.8 was fast. >> >> I can only suggest to fix geometry in 2.79, so it doesn't cause problems to openSubdiv. >> >> Not sure if opening old files with subsurf causing this kind of problem would be considered a bug. > > ¿So, this is happening because Blender updated how subsurface works, and it broke old files that use it? Yes.

Josesk Leufredo Volpe commented

2020-03-02 04:14:27 +01:00

In #74152#883125, @iss wrote:

In #74152#882816, @JoseskVolpe wrote:

In #74152#882274, @iss wrote:
After disabling subsurf modifiers, opening in 2.8 was fast.

I can only suggest to fix geometry in 2.79, so it doesn't cause problems to openSubdiv.

Not sure if opening old files with subsurf causing this kind of problem would be considered a bug.

¿So, this is happening because Blender updated how subsurface works, and it broke old files that use it?

Yes.

Well, it's also freezing when i set it to rendering mode, i dont think it is another problem with subsurface only

> In #74152#883125, @iss wrote: >> In #74152#882816, @JoseskVolpe wrote: >>> In #74152#882274, @iss wrote: >>> After disabling subsurf modifiers, opening in 2.8 was fast. >>> >>> I can only suggest to fix geometry in 2.79, so it doesn't cause problems to openSubdiv. >>> >>> Not sure if opening old files with subsurf causing this kind of problem would be considered a bug. >> >> ¿So, this is happening because Blender updated how subsurface works, and it broke old files that use it? > > Yes. Well, it's also freezing when i set it to rendering mode, i dont think it is another problem with subsurface only

Germano Cavalcante commented

2020-03-05 14:07:21 +01:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2020-03-05 14:07:21 +01:00

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

Germano Cavalcante commented

2020-03-05 14:07:21 +01:00

This report is unclear about the bug.

That popup about exec python scripts is not an error message and is not a bug. It is a security action that you can disable in the preferences.
OpenCL's compatibility with Cycles is often not a bug. Cycles is in constant development and sometimes GPU drives do not follow the same rhythm.
High poly objects sometimes demand a lot from the GPU, if the problem happens in the default file then it is a bug.

Please follow our submission template and guidelines, also read these tips about bug reports to make a complete, valid bug report.
Also explained here: https://www.youtube.com/watch?v=JTD0OJq_rF4

If there are multiple bugs, make multiple bug reports.

Please edit the description to describe only one issue.

This report is unclear about the bug. - That popup about exec python scripts is not an error message and is not a bug. It is a security action that you can disable in the preferences. - OpenCL's compatibility with Cycles is often not a bug. Cycles is in constant development and sometimes GPU drives do not follow the same rhythm. - High poly objects sometimes demand a lot from the GPU, if the problem happens in the default file then it is a bug. Please follow our [submission template and guidelines](https:*developer.blender.org/maniphest/task/edit/form/1/), also read [these tips about bug reports](https:*wiki.blender.org/wiki/Process/Bug_Reports) to make a complete, valid bug report. Also explained here: https://www.youtube.com/watch?v=JTD0OJq_rF4 > - If there are multiple bugs, make multiple bug reports. Please edit the description to describe only one issue.

Richard Antalik changed title from ~~Very long time to load and compatibility problems with Intel HD Graphics 620~~ to Old files with subsurf modifier requite long time to load

2020-03-09 16:33:39 +01:00

Germano Cavalcante commented

2020-03-09 19:38:14 +01:00

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

Marco commented

2020-06-17 09:05:39 +02:00

Removed subscriber: @nacioss

Philipp Oeser removed the

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Old files with subsurf modifier requite long time to load #74152