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Maniphest T69762

Blender 2.81 — Shadow glitches with Workbench render-engine (in viewport and same at render)
Confirmed, NormalPublicKNOWN ISSUE
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Description

System Information
Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: GeForce GTX 560/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 391.35

Blender Version
Broken: version: 2.81 (sub 9), branch: master, commit date: 2019-09-09 17:22, hash: rB6be3348505ce

Broken shadows "traced path" glithc effect in the air in places where geomety have "complex area" (when you use shadows from Workbrench render and same in viewport).
Screenshot
Here is on video uou can see it. Sorry for broken english.

Exact steps for others to reproduce the error
Don't know how to reproduce it step by step, so I've put the file here:

broken.blend13 MBDownload

Related Objects

Event Timeline

Ruslan (rs2128) created this task.Sep 11 2019, 7:40 PM
Michael Soluyanov (crantisz) added a subscriber: Michael Soluyanov (crantisz).Sep 11 2019, 10:33 PM

Exact steps for others to reproduce the error:

  1. In New file turn on shadows in Solid draw mode.
  2. Add plane and scale it outside viewport clipping area
  3. You will see shadow glitch like this:

Ruslan (rs2128) added a comment.Sep 11 2019, 10:58 PM

Thanks Michael. :)
To the developers: but in the file not only one shadow bug, but a couple another related too, I think. So check the file definitely

Germano Cavalcante (mano-wii) assigned this task to Jeroen Bakker (jbakker).Sep 26 2019, 3:56 PM
Germano Cavalcante (mano-wii) lowered the priority of this task from 90 to 50.
Germano Cavalcante (mano-wii) added a subscriber: Germano Cavalcante (mano-wii).

I can confirm, it seems to be related to the scale of the objects.

Michael Soluyanov (crantisz) added a comment.Sep 27 2019, 8:24 AM
In T69762#773891, @Ruslan (rs2128) wrote:

but in the file not only one shadow bug, but a couple another related too, I think. So check the file definitely//

Multiple requests is not allowed here. If you want to report anther problem, you should make separate bug report for this

Germano Cavalcante (mano-wii) merged a task: T70334: Solid mode shadows have weird artifacts..Oct 1 2019, 8:35 PM
Germano Cavalcante (mano-wii) added a subscriber: Aeron Farax (3DUnreal).
Philipp Oeser (lichtwerk) added a project: GPU / Viewport.Nov 20 2019, 3:57 PM
Dalai Felinto (dfelinto) removed Jeroen Bakker (jbakker) as the assignee of this task.Dec 23 2019, 1:51 PM
Dalai Felinto (dfelinto) added a project: Tracker Curfew.
Dalai Felinto (dfelinto) added a subscriber: Jeroen Bakker (jbakker).
Jeroen Bakker (jbakker) changed the subtype of this task from "Report" to "Known Issue".Jan 10 2020, 12:52 PM

Hmmm there was already a report for this issue. But cannot find it. It is a known issue, but don't think it will be tackled in the short term so I will set it to known issue.

Jeroen Bakker (jbakker) removed a project: Tracker Curfew.Jan 10 2020, 12:52 PM
Clément Foucault (fclem) edited projects, added EEVEE & Viewport; removed GPU / Viewport.Jun 19 2020, 10:23 PM
Clément Foucault (fclem) moved this task from Backlog to Bugs on the EEVEE & Viewport board.Jul 1 2020, 3:05 AM
Clément Foucault (fclem) moved this task from Bugs to Known Issues on the EEVEE & Viewport board.
Aeron Farax (3DUnreal) added a comment.Jul 1 2020, 10:48 AM

Just a note but still happens in 2.83.1

Ermins Ermanis (erminos) added a subscriber: Ermins Ermanis (erminos).Jan 29 2021, 4:25 PM
Ermins Ermanis (erminos) added a comment.Jan 30 2021, 1:03 AM

In this scene something similar happens. Confirmed on Win10 with Blender 2.83.10 / 2.91.2, and on Win7 with Blenders: 2.83.10, 2.91.2, 2.92.0-213f8294b5c8 beta, 2.93.0-92b0803f35a7 alpha.

The glitch is seen on few frames here. And only in Solid viewport shading. It hides - if any 1 of 3 modifiers: Bevel, Array, Curve are disabled. And it disappears - when moving object, sometimes reappearing on other frame(s).

  • OS: Windows-10-10.0.19041-SP0 64 Bits, GPU: GeForce GTX 750 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 457.30
  • OS: Windows-10-10.0.18362-SP0 64 Bits, GPU: Intel(R) HD Graphics 4600 Intel 4.3.0 - Build 20.19.15.4531
  • OS: Windows-7-6.1.7601-SP1 64 Bits, GPU: Intel(R) HD Graphics 5500 Intel 4.4.0 - Build 20.19.15.5063

shadow_artifact.blend107 KBDownload

Richard Antalik (ISS) mentioned this in T90433: Booleans causing shadow artifacts in solid render mode.Aug 5 2021, 1:44 AM
Faruk Ahmet (kuboa) added a subscriber: Faruk Ahmet (kuboa).Jan 10 2023, 3:14 PM