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Maniphest T81633

Both X-Ray and cavity enabled causes abnormal GPU load
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Description

System Information
Operating system: macOS 10.15.7
Graphics card: AMD Radeon Pro 5500M 8 Gb / Intel UHD Graphics 630
Chrome: 86.0.4240.75

Blender Version
Broken: 2.90.0 (release)
Broken: 2.90.1 (release)

Short description of error

Enabling both cavity and XRay causes Google Chrome (at least) performance degrade drastically.

Video demo:

Exact steps for others to reproduce the error

  • Open attached file or:
- Create new empty project
- Add two array modifiers to the default cube: item count 100, factor -1.2 for X and item count 100, factor 1.2 for Y axis
- Add bevel modifier with default settings
- Enable cavity with default settings
- Enable X-Ray with default settings
  • With Blender maximized (at least on windows) check the GPU usage - (this can be done through the task manager or browsing Google Chrome)

Note that disabling cavity before enabling X-Ray produces different result. In that case Chrome performs as usual.

angularvelocitybug.blend1 MBDownload

Revisions and Commits

rB Blender
rB89b5c9d43379 Fix T81633 Workbench: TAA never resolve when enabling both X-Ray and cavity
rBadc02910618c Fix T81633 Workbench: TAA never resolve when enabling both X-Ray and cavity

Related Objects

Event Timeline

Ivan Smith (IvanSmith) created this task.Oct 11 2020, 7:37 PM
Evan Wilson (EAW) renamed this task from Both X-Ray and cavity enabled causes performance issues to Both X-Ray and cavity enabled causes Google Chrome performance issues.Oct 12 2020, 3:11 AM
Roman Markov (unwave) added a subscriber: Roman Markov (unwave).Oct 12 2020, 5:36 PM

It is not a Google Chrome issue. Enabling both X-Ray and Cavity gives an abnormal constant 100% GPU load.

Ivan Smith (IvanSmith) renamed this task from Both X-Ray and cavity enabled causes Google Chrome performance issues to Both X-Ray and cavity enabled causes abnormal GPU load.Oct 13 2020, 3:39 PM
Germano Cavalcante (mano-wii) changed the task status from Needs Triage to Confirmed.Oct 14 2020, 4:18 PM
Germano Cavalcante (mano-wii) changed the subtype of this task from "Report" to "Bug".
Germano Cavalcante (mano-wii) added a subscriber: Germano Cavalcante (mano-wii).

I can confirm a high usage of the GPU in the task manager when both Cavity and X-Ray are enabled.
The Blender window needs to be maximized for this.
Here the file I used:

angularvelocitybug.blend1 MBDownload

Germano Cavalcante (mano-wii) updated the task description. (Show Details)Oct 14 2020, 4:23 PM
Germano Cavalcante (mano-wii) added a project: EEVEE & Viewport.
Clément Foucault (fclem) closed this task as Resolved by committing rBadc02910618c: Fix T81633 Workbench: TAA never resolve when enabling both X-Ray and cavity.Oct 14 2020, 7:27 PM
Clément Foucault (fclem) claimed this task.
Clément Foucault (fclem) added a commit: rBadc02910618c: Fix T81633 Workbench: TAA never resolve when enabling both X-Ray and cavity.
Jeroen Bakker (jbakker) mentioned this in T77348: Blender LTS: Maintenance Task.Oct 28 2020, 8:42 AM
Jeroen Bakker (jbakker) added a commit: rB89b5c9d43379: Fix T81633 Workbench: TAA never resolve when enabling both X-Ray and cavity.Oct 28 2020, 9:56 AM