Maniphest T81436

Hair system causes viewport artifacts in solid mode with anti-aliasing disabled
Closed, Duplicate
Actions

Assigned To
None
Authored By
Midge Sinnaeve (mantissa)
Oct 4 2020, 4:17 PM
Tags
  • BF Blender
  • EEVEE & Viewport
Subscribers
Clément Foucault (fclem)
Evan Wilson (EAW)
Jeroen Bakker (jbakker)
Midge Sinnaeve (mantissa)
Philipp Oeser (lichtwerk)
Sebastian Parborg (zeddb)

Description

System Information
Operating system: Linux-5.8.13_1-x86_64-with-glibc2.17 64 Bits
Graphics card: AMD Radeon RX 5700 XT (NAVI10, DRM 3.38.0, 5.8.13_1, LLVM 10.0.0) X.Org 4.6 (Core Profile) Mesa 20.1.8

Blender Version
Broken: version: 2.83.7, branch: master, commit date: 2020-09-30 06:12, hash: rB192e591af9fb, 2.90, 2.91 master
Worked: 2.82

Short description of error
When viewport anti aliasing is disabled in the Preferences, adding a Hair particle system causes artifacts in Solid view until the view is refreshed.

Exact steps for others to reproduce the error

  • Go to Preferences > Viewport and set Viewport Anti-Aliasing to "No Anti-Aliasing"
  • Add particle system to default cube and set to "Hair"
  • Solid Mode viewport shows articfact (see image)

Related Objects

Mentioned Here
T76389: GPU Driver Issue: Animation Playback (MESA+AMD NAVI)
rBffa715262669: Cleanup: refactor where_is_temp

Event Timeline

Midge Sinnaeve (mantissa) created this task.Oct 4 2020, 4:17 PM
Evan Wilson (EAW) added a subscriber: Evan Wilson (EAW).Oct 4 2020, 11:50 PM

Thank you for the report.
I tried 2.83.7, 2.90.1, and 2.91.0 Alpha rBffa715262669

I cannot reproduce. This might be a driver and/or OS specific issue.

Tested using:
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce GTX 470/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 391.35

Philipp Oeser (lichtwerk) changed the task status from Needs Triage to Needs Information from Developers.Oct 5 2020, 1:38 PM
Philipp Oeser (lichtwerk) added a project: EEVEE & Viewport.
Philipp Oeser (lichtwerk) added subscribers: Clément Foucault (fclem), Philipp Oeser (lichtwerk).

Also cannot reproduce (tested current master and 2.83.7)

**System Information**
Operating system: Linux-5.8.4-200.fc32.x86_64-x86_64-with-fedora-32-Thirty_Two 64 Bits
Graphics card: GeForce GTX 970M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 450.66
version: 2.91.0 Alpha, branch: master, commit date: 2020-10-05 09:47, hash: `rB7e836bde11ce`

@Clément Foucault (fclem): does this ring a bell?

Midge Sinnaeve (mantissa) added a comment.Oct 5 2020, 3:10 PM

Might be something to do with the open source amdgpu drivers on Linux specifically then? Because the same thing happens on Xubuntu as well with the same hardware and drivers.

Jeroen Bakker (jbakker) added subscribers: Sebastian Parborg (zeddb), Jeroen Bakker (jbakker).Oct 6 2020, 8:47 AM

Similar artifacts as T76389: GPU Driver Issue: Animation Playback (MESA+AMD NAVI) But not able to reproduce on 20.0.8 @Sebastian Parborg (zeddb): can you reproduce on latest mesa?

system-info.txt12 KBDownload

Jeroen Bakker (jbakker) closed this task as a duplicate of T76389: GPU Driver Issue: Animation Playback (MESA+AMD NAVI).Oct 6 2020, 8:48 AM

Closed as duplicate as the bug report send to mesa contains a cube with hair to reproduce