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Maniphest T71669

Mesh gets transparency in a specific vertex group after trying to render in EEVEE
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Description

System Information
Operating system: Windows-7-6.1.7600-SP0 64 Bits
Graphics card: Gallium 0.4 on llvmpipe (LLVM 3.8, 128 bits) VMware, Inc. 3.3 (Core Profile) Mesa 11.2.0 (git-aa91c51)

Blender Version
Broken: version: 2.80 (sub 75), branch: master, commit date: 2019-07-29 14:47, hash: rBf6cb5f54494e and 2.81 beta eba4a4bd73ba date 2019-11-15 16:32

Mesh gets transparency in viewport view in a specific vertex group after trying to render in EEVEE. this happened me in two models that were created in b3d 2.79b. in 2.80 this doesnt seem to appear but i havent check it out if thats correct...
some screenshots


MBD_M4A1-2.8.blend9 MBDownload

Related Objects

Event Timeline

Michael Colina (MichaelBenDavid) created this task.Nov 19 2019, 5:49 AM
Philipp Oeser (lichtwerk) lowered the priority of this task from 90 to 30.Nov 19 2019, 1:10 PM
Philipp Oeser (lichtwerk) added a project: GPU / Viewport.
Philipp Oeser (lichtwerk) added a subscriber: Philipp Oeser (lichtwerk).

.blend file is missing, please upload here

  • every check is helpful, so if you can confirm these load fine into 2.80, please provide that information as well
  • also make sure to check GPU requirements and up-to-date drivers

https://www.blender.org/download/requirements/
https://docs.blender.org/manual/en/dev/troubleshooting/gpu/index.html

Michael Colina (MichaelBenDavid) updated the task description. (Show Details)Nov 19 2019, 7:51 PM
Michael Colina (MichaelBenDavid) updated the task description. (Show Details)Nov 19 2019, 8:04 PM
Michael Colina (MichaelBenDavid) added a comment.Nov 20 2019, 8:46 PM

added model link i hope that helps

Philipp Oeser (lichtwerk) raised the priority of this task from 30 to 90.Dec 5 2019, 3:28 PM

Not sure we support these kinds of glitches over VMWare, but yes, needs another look, thx for getting back...

Jacques Lucke (JacquesLucke) changed the task status from Needs Triage to Needs Information from User.Jan 15 2020, 4:16 PM
Jacques Lucke (JacquesLucke) added a subscriber: Jacques Lucke (JacquesLucke).

Do I read that correctly, the issue only happens on meshes that were created before in 2.79, but does not happen on any new model?
Does the issue still exist?

Michael Colina (MichaelBenDavid) added a comment.EditedJan 15 2020, 7:59 PM
In T71669#849888, @Jacques Lucke (JacquesLucke) wrote:

Do I read that correctly, the issue only happens on meshes that were created before in 2.79, but does not happen on any new model?
Does the issue still exist?

yes though i discovered that the issue was caused by opengl it self, i am using a opengl32.dll thats how i fortunately i can open blender 2.8, and sadly runs slower than 2.79b its runs smooth instead! also this was stupidly solve by deleting all materials in material tab by the way... this happened too with two object created in 2.8 that i joined and same shit happened and the solution was the same...i dont find a way to upgrade windows right now to see if i can update my drivers card..

Brecht Van Lommel (brecht) added a subscriber: Brecht Van Lommel (brecht).Jan 19 2020, 6:16 PM

This sounds like an issue with multiple materials, same as T71576: Viewport/crash artefacts with multiple materials and legacy NVIDIA drivers.

Evan Wilson (EAW) closed this task as Archived.Jan 21 2020, 10:44 AM
Evan Wilson (EAW) claimed this task.
Evan Wilson (EAW) added a subscriber: Evan Wilson (EAW).

Thanks for the reports.

You are running Win 7 SP0 on an Ironlake (Arrandale) CPU with a software rasterizer from 2016.

This GPU is below the minimum requirements for Blender, so we no longer provide support for it.: https://www.blender.org/download/requirements/

Installing the latest graphics driver sometimes helps to make such GPUs work, see here for more information. https://docs.blender.org/manual/en/dev/troubleshooting/gpu/index.html

If that doesn't help, you can use Blender 2.79: https://www.blender.org/download/previous-versions/

Clément Foucault (fclem) edited projects, added EEVEE & Viewport; removed GPU / Viewport.Jun 19 2020, 11:04 PM