Grease Pencil shimmers in the viewport and renders #90321

New Issue

Amritha R Warrier · 2021-07-30T08:49:33+02:00

Amritha R Warrier commented

2021-07-30 08:49:33 +02:00

System Information
Operating system: Windows 7 Ultimate
Graphics card: Nvidia Quadro 2000

Blender Version
2.92.0

Short description of error
I have a video below, If you see carefully the lines are shimmering, Is there any way to avoid that? https://www.youtube.com/watch?v=aBIJbTTiLlU
Attached a blender file as well.
I tried

increasing samples of viewport
increasing anti-aliasing of grease pencil.
different render systems 'eevee' and 'cycles'.
Tried all possible file exports but the problem is in the viewport itself.
Should I try denoising it? although that didn't work so well either.
The problem just isn't going way. Is it my system? Could you help?

Exact steps for others to reproduce the error
room fix.blend

**System Information** Operating system: Windows 7 Ultimate Graphics card: Nvidia Quadro 2000 **Blender Version** 2.92.0 **Short description of error** I have a video below, If you see carefully the lines are shimmering, Is there any way to avoid that? https://www.youtube.com/watch?v=aBIJbTTiLlU Attached a blender file as well. I tried - increasing samples of viewport - increasing anti-aliasing of grease pencil. - different render systems 'eevee' and 'cycles'. - Tried all possible file exports but the problem is in the viewport itself. Should I try denoising it? although that didn't work so well either. The problem just isn't going way. Is it my system? Could you help? **Exact steps for others to reproduce the error** [room fix.blend](https://archive.blender.org/developer/F10246869/room_fix.blend)

Amritha R Warrier commented

2021-07-30 08:49:33 +02:00

Added subscriber: @amritha_warrier

Antonio Vazquez commented

2021-07-30 10:03:47 +02:00

Added subscribers: @fclem, @antoniov

Antonio Vazquez commented

2021-07-30 10:03:47 +02:00

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

Antonio Vazquez commented

2021-07-30 10:03:47 +02:00

This is a known issue with Anti-Aliasing. (@fclem can confirm). We are working to solve it, but now to reduce the problem please try rendering double size then reduce size to final size.

Amritha R Warrier commented

2021-07-30 14:16:53 +02:00

Hi Antonio,
Thanks for the suggestion. I tried doubling the size and reduced it to a final size. I feel like it still hasn't reduced the problem. If you could just see the below video
https://youtu.be/fjtBT7jLe7c

It looks the same, Is there any other way to reduce this shimmering of the grease pencil?

Hi Antonio, Thanks for the suggestion. I tried doubling the size and reduced it to a final size. I feel like it still hasn't reduced the problem. If you could just see the below video https://youtu.be/fjtBT7jLe7c It looks the same, Is there any other way to reduce this shimmering of the grease pencil?

Antonio Vazquez commented

2021-07-30 15:12:07 +02:00

Added subscribers: @mendio, @pepe-school-land

Antonio Vazquez commented

2021-07-30 15:12:07 +02:00

@pepe-school-land @mendio Can you suggest anything else to reduce the flickering of Gpencil due Anti-Aliasing?

Ross commented

2021-07-30 19:42:13 +02:00

Added subscriber: @4thDimension

Ross commented

2021-07-30 19:42:13 +02:00

Adjusting the anti alias in the render settings to 3 helps. Along with double size rendering. I've found that thin lines produce flickers more so than thicker lines{F10247848}

Adjusting the anti alias in the render settings to 3 helps. Along with double size rendering. I've found that thin lines produce flickers more so than thicker lines{[F10247848](https://archive.blender.org/developer/F10247848/Enable_AA_in_render.png)}

Antonio Vazquez commented

2021-07-30 20:45:39 +02:00

Yes, the problem is worst with very thin lines.

Amritha R Warrier commented

2021-08-03 17:45:20 +02:00

yes, the problem is still persisting no matter how hard I tried. Thanks for your help. Ill try using dynamic shots than slow moving shots so that it doesn't stand out.

Amritha R Warrier commented

2021-08-04 16:19:08 +02:00

I tried Gaussian blur in post to 6. It looks much better, the lines don't stand out that much. It looks a little blended with the background. This is decent fix for now

Philipp Oeser removed the

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Grease Pencil shimmers in the viewport and renders #90321