viewport artifacts when sculpting with AA #79899

System Information
Operating system: Linux-5.4.0-42-generic-x86_64-with-debian-bullseye-sid 64 Bits
Graphics card: GeForce RTX 2060 SUPER/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 440.100

Blender Version
Broken: version: 2.91.0 Alpha, branch: master, commit date: 2020-08-18 19:30, hash: 78d6c273b7
Worked: version: 2.90 beta
Worked: version: 2.83.4 LTS
Caused by f30df15edc

Short description of error
With the viewport display mode set to solid, sculpting produces temporary visual artifacts which disappear once the cursor is released. they are more prominent if the object being sculpted fills most of the viewport. The issue goes away if anti-alias is disabled in the viewport (in user preferences).

Exact steps for others to reproduce the error
enter sculpt mode
zoom in
sculpt

Added subscriber: @gri573

#80081 was marked as duplicate of this issue

#80024 was marked as duplicate of this issue

#80017 was marked as duplicate of this issue

#79984 was marked as duplicate of this issue

Added subscriber: @lichtwerk

Changed status from 'Needs Triage' to: 'Confirmed'

Can confirm, checking...

Added subscriber: @fclem

Caused by f30df15edc

CC @fclem

Added subscriber: @SimonThommes

Added subscriber: @MetinSeven-1

Still present in build a1f54be042, Windows 64 bit, August 21. I hope it will be fixed soon, thanks.

Added subscriber: @Frozen_Death_Knight

I concur. It's next to impossible to do any testing on anything more complex than the simplest of geometry because of this bug. If I use the latest builds for a typical project, the software inevitably becomes unresponsive and freezes.

Added subscriber: @kursadk

I can confirm this on blender-2.91.0-010c1370aff6-windows64, Windows 10 x64, Nvidia 2070 Super Driver 452.06

An observation: if you add a Subdivision modifier to your mesh and enter Sculpt Mode, the viewport trash will be gone.

This issue was referenced by cb8da6efce

Changed status from 'Confirmed' to: 'Resolved'

Added subscribers: @Ravenman13, @mano-wii

Added subscriber: @surajnairpv

Added subscribers: @cfnjrey, @Loner-2

I'm still getting the viewport artifacts in Blender 2.91.0 Alpha, August 25, 23:38:23- 396d39c6b9, Windows 64 bit.

@MetinSeven-1 was it ever fixed for you? What is your OS/GPU?

I've installed yesterday's build and didn't work with it a lot, but can't recall encountering the bug, so it might have been away and returned.

Here's my system config:

Intel Core i9 9900K CPU, 64 GB RAM
NVIDIA GeForce RTX 2080 Ti GPU
Windows 10 Pro 64-bit

Thanks.

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viewport artifacts when sculpting with AA #79899