Strange EEVEE flickering and lack of clarity #85831

New Issue

Amir Shehata · 2021-02-21T00:57:05+01:00

Amir Shehata commented

2021-02-21 00:57:05 +01:00

System Information
Operating system: Linux-5.4.0-65-generic-x86_64-with-glibc2.31 64 Bits
Graphics card: GeForce GTX 1060 6GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 450.102.04

Blender Version
Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-02-20 21:05, hash: 6c2e1f3398
Worked: version: 2.92.0 Alpha, branch: master, commit date: 2020-11-06 19:20, hash: d2c102060d, type: Release

Short description of error
When in render or material view and while rotating an object or moving it appears like there is shifting. The view port isn't as smooth as it used to be.
I've attached a video comparison below

Exact steps for others to reproduce the error
Below are two videos. The one with the problem is from the latest master build identified above. And the one without the problem is from
version: 2.92.0 Alpha, branch: master, commit date: 2020-11-06 19:20, hash: d2c102060d, type: Release

This commit seems to be related:
75580fa6a6 Fix flashing eevee render passes in viewport

But it doesn't appear to fix the entire problem

Look at the neck line in both videos. The flicker is quiet noticeable there.

Video showing the problem
https://youtu.be/mOl7cv_jz8o
blender-flicker.mp4

Video without the problem
https://youtu.be/bjLunAuB1Ho
blender-noflicker.mp4

**System Information** Operating system: Linux-5.4.0-65-generic-x86_64-with-glibc2.31 64 Bits Graphics card: GeForce GTX 1060 6GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 450.102.04 **Blender Version** Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-02-20 21:05, hash: `6c2e1f3398` Worked: version: 2.92.0 Alpha, branch: master, commit date: 2020-11-06 19:20, hash: d2c102060d44, type: Release **Short description of error** When in render or material view and while rotating an object or moving it appears like there is shifting. The view port isn't as smooth as it used to be. I've attached a video comparison below **Exact steps for others to reproduce the error** Below are two videos. The one with the problem is from the latest master build identified above. And the one without the problem is from version: 2.92.0 Alpha, branch: master, commit date: 2020-11-06 19:20, hash: d2c102060d44, type: Release This commit seems to be related: 75580fa6a661eba58f9d39f8332985b1b72d3bc3 Fix flashing eevee render passes in viewport But it doesn't appear to fix the entire problem Look at the neck line in both videos. The flicker is quiet noticeable there. Video showing the problem https://youtu.be/mOl7cv_jz8o [blender-flicker.mp4](https://archive.blender.org/developer/F9823273/blender-flicker.mp4) Video without the problem https://youtu.be/bjLunAuB1Ho [blender-noflicker.mp4](https://archive.blender.org/developer/F9823281/blender-noflicker.mp4)

Amir Shehata commented

2021-02-21 00:57:05 +01:00

Added subscriber: @AmirShehata

Amir Shehata commented

2021-02-21 02:29:58 +01:00

I did a git bisect and narrowed the issue to this commit:
000a340afa (HEAD -> test2) EEVEE: Depth of field: New implementation

I did a git bisect and narrowed the issue to this commit: 000a340afa67a12a38c103e19f7d52ed42c4492e (HEAD -> test2) EEVEE: Depth of field: New implementation

Firepal commented

2021-02-21 11:41:25 +01:00

Added subscriber: @Firepal

Firepal commented

2021-02-21 11:41:25 +01:00

Duplicate of #85609 ?

Firepal commented

2021-02-22 17:52:38 +01:00

That task was fixed as well now.

Germano Cavalcante commented

2021-02-24 21:33:51 +01:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2021-02-24 21:33:51 +01:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Germano Cavalcante commented

2021-02-24 21:33:51 +01:00

Can you provide a simple file showing the problem?
I can't see the problem with the default Cube scene.

Can you provide a simple file showing the problem? I can't see the problem with the default Cube scene.

Amir Shehata commented

2021-02-24 21:49:01 +01:00

This has already been fixed with the change in https://developer.blender.org/T85609
https://developer.blender.org/rBd45a89ee443ec4469505caef4a7d64e525da08fd
I already tested with that patch and it seems to work.
thanks

This has already been fixed with the change in https://developer.blender.org/T85609 https://developer.blender.org/rBd45a89ee443ec4469505caef4a7d64e525da08fd I already tested with that patch and it seems to work. thanks

Germano Cavalcante commented

2021-02-24 21:51:16 +01:00

Thanks for the update

Germano Cavalcante commented

2021-02-24 21:51:25 +01:00

Closed as duplicate of #85609

Germano Cavalcante closed this issue

2021-02-24 21:51:25 +01:00

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Strange EEVEE flickering and lack of clarity #85831