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Maniphest T85314

Flickering visibility of instanced objects
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Description

System Information
Operating system: Linux-5.8.0-7630-generic-x86_64-with-debian-bullseye-sid 64 Bits
Graphics card: Quadro RTX 6000/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 460.32.03

Blender Version
Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-02-02 10:10, hash: rBd19aaad0bce1

Caused by rB03c1c5f3a4c5: GPU: Fix performance regression on AMD GPU

Short description of error

The visibility of objects that are instanced with geometry nodes is flickering per material index. Note that the issue goes away when hiding the ferns collection.

Exact steps for others to reproduce the error

flickering_mushrooms.blend28 MBDownload

Revisions and Commits

rB Blender
rB0fc456f091d9 Fix T85314 GPU: Drawlist submit data overflows.

Related Objects

Event Timeline

Simon Thommes (simonthommes) created this task.Feb 2 2021, 4:53 PM
Sebastian Parborg (zeddb) changed the task status from Needs Triage to Confirmed.Feb 2 2021, 4:56 PM
Sebastian Parborg (zeddb) added a project: EEVEE & Viewport.
Sebastian Parborg (zeddb) added subscribers: Clément Foucault (fclem), Sebastian Parborg (zeddb).

We have multiple people in the studio that can confirm and has this issue.

@Clément Foucault (fclem) this seems to be a recent regression. (Worked with commits from Feb 1)
Do you have any clue on what it could be?

Jacques Lucke (JacquesLucke) added a subscriber: Jacques Lucke (JacquesLucke).Feb 2 2021, 6:22 PM

Reverting rB03c1c5f3a4c5: GPU: Fix performance regression on AMD GPU solves the issue for me as well.

Philipp Oeser (lichtwerk) updated the task description. (Show Details)Feb 2 2021, 6:49 PM
Clément Foucault (fclem) claimed this task.Feb 2 2021, 11:25 PM
Clément Foucault (fclem) triaged this task as High priority.
Clément Foucault (fclem) closed this task as Resolved by committing rB0fc456f091d9: Fix T85314 GPU: Drawlist submit data overflows..Feb 3 2021, 12:16 AM
Clément Foucault (fclem) added a commit: rB0fc456f091d9: Fix T85314 GPU: Drawlist submit data overflows..