Preview does not update once preview is done #90511

New Issue

Colin Marmond · 2021-08-07T21:41:40+02:00

Colin Marmond commented

2021-08-07 21:41:40 +02:00

System Information
Operating system: Linux 5.11.0-25-generic #27~20.04.1-Ubuntu x86_64 x86_64 x86_64 GNU/Linux
Graphics card: RTX 2070

Blender Version
Broken: 3.0.0 alpha latest master
Worked: Two weeks ago

First bad commit is 4f64fa4f86

Short description of error

The cycles render preview does not update when we move the view once the preview finished.

Exact steps for others to reproduce the error
Open blender -> change to cycles -> preview the cube -> wait until the samples are 32/32 and marked as preview done -> try to move the view

**System Information** Operating system: Linux 5.11.0-25-generic #27~20.04.1-Ubuntu x86_64 x86_64 x86_64 GNU/Linux Graphics card: RTX 2070 **Blender Version** Broken: 3.0.0 alpha latest master Worked: Two weeks ago First bad commit is 4f64fa4f86 **Short description of error** The cycles render preview does not update when we move the view once the preview finished. **Exact steps for others to reproduce the error** Open blender -> change to cycles -> preview the cube -> wait until the samples are 32/32 and marked as preview done -> try to move the view

Colin Marmond commented

2021-08-07 21:41:40 +02:00

Added subscriber: @Kdaf

blender-admin commented

2021-08-07 21:41:40 +02:00

#90530 was marked as duplicate of this issue

kursad k commented

2021-08-08 04:30:04 +02:00

Added subscriber: @kursadk

kursad k commented

2021-08-08 04:30:04 +02:00

Edit: blender-3.0.0-alpha+master.171433e84137-windows.amd64 does not demonstrate this issue.

I can confirm this. It is weird, it seems like it is evident if you keep the preview window for a while and try to navigate it after some time. See the video, demonstrated using RTX 2070 on Windows.

I was having the issue with a complicated scene, I thought it must have been something to do with how heavy the scene was. This must have been introduced within last couple days in 3.x nightlies. I do not remember having this issue last week/

6bLKQCZnZv.mp4

*Edit: blender-3.0.0-alpha+master.171433e84137-windows.amd64 does not demonstrate this issue.* I can confirm this. It is weird, it seems like it is evident if you keep the preview window for a while and try to navigate it after some time. See the video, demonstrated using RTX 2070 on Windows. I was having the issue with a complicated scene, I thought it must have been something to do with how heavy the scene was. This must have been introduced within last couple days in 3.x nightlies. I do not remember having this issue last week/ [6bLKQCZnZv.mp4](https://archive.blender.org/developer/F10273971/6bLKQCZnZv.mp4)

kursad k commented

2021-08-08 04:33:52 +02:00

Here is another video demoing it with a real scene. I can force an update with shift-Z and back.

1Taiiu9agz.mp4

Here is another video demoing it with a real scene. I can force an update with `shift-Z` and back. [1Taiiu9agz.mp4](https://archive.blender.org/developer/F10273973/1Taiiu9agz.mp4)

Colin Marmond commented

2021-08-08 08:18:11 +02:00

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

Steffen Dünner commented

2021-08-08 23:32:50 +02:00

Added subscriber: @SteffenD

Steffen Dünner commented

2021-08-08 23:36:38 +02:00

While I think that changing the task's status to "Confirmed" on your own is not the way it's intended to be, I can only confirm what's been reported here before. I suspected the Denoiser stuff to have something to do with it but it also happens without viewport denoising.

Alaska commented

2021-08-09 01:05:13 +02:00

Added subscriber: @Alaska

Alaska commented

2021-08-09 01:05:13 +02:00

I can confirm. Will bisect the issue.

Alaska commented

2021-08-09 01:28:57 +02:00

Added subscribers: @Sergey, @brecht

Alaska commented

2021-08-09 01:28:57 +02:00

The first bad commit according to my bisecting is this:
4f64fa4f86

CC @Sergey and @brecht

The first bad commit according to my bisecting is this: 4f64fa4f86 CC @Sergey and @brecht

Jesse Yurkovich commented

2021-08-09 02:22:27 +02:00

Added subscriber: @kosblend

Sergey Sharybin self-assigned this 2021-08-09 10:14:02 +02:00

blender-admin commented

2021-08-09 10:26:58 +02:00

This issue was referenced by blender/cycles@3aec6acc13

This issue was referenced by blender/cycles@3aec6acc13ead48791b3218f68e83deff65dc909

blender-admin commented

2021-08-09 10:26:58 +02:00

This issue was referenced by 52c349cfcd

This issue was referenced by 52c349cfcd28f402e6e73450831078fbd3fbbf08

Sergey Sharybin commented

2021-08-09 10:31:31 +02:00

Changed status from 'Confirmed' to: 'Resolved'

Sergey Sharybin closed this issue

2021-08-09 10:31:31 +02:00

Sergey Sharybin commented

2021-08-09 10:32:27 +02:00

Fixed for GPU. The CPU seemed to work fine.
Please let me know if the issue is fully fixed for you!

Fixed for GPU. The CPU seemed to work fine. Please let me know if the issue is fully fixed for you!

Steffen Dünner commented

2021-08-09 10:36:29 +02:00

Great! Thanks Sergey. This completely fixed it for me.

Alaska commented

2021-08-09 10:39:35 +02:00

In #90511#1203745, @Sergey wrote:
Fixed for GPU. The CPU seemed to work fine.
Please let me know if the issue is fully fixed for you!

Can confirm the fix works for me.

> In #90511#1203745, @Sergey wrote: > Fixed for GPU. The CPU seemed to work fine. > Please let me know if the issue is fully fixed for you! Can confirm the fix works for me.

Colin Marmond commented

2021-08-09 18:12:51 +02:00

Yes, fix working for me as well, thanks Sergey.

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Preview does not update once preview is done #90511