Enabling Environment pass corrupts view layer in 2.93.1 (regression) #90047

New Issue

sentharn · 2021-07-22T16:02:20+02:00

sentharn commented

2021-07-22 16:02:20 +02:00

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 471.11

Blender Version
Broken: version: 2.93.1, branch: master, commit date: 2021-06-22 05:57, hash: 1b8d33b18c
Worked: 2.92

Short description of error
Enabling Environment pass corrupts view layer

Exact steps for others to reproduce the error
I enabled the Environment pass on a cloned view layer in this file. All of the tiles with geometry in them look corrupted now in that view layer. It goes away if I uncheck Environment. This only happens in 2.93.1; older versions render this file fine.

BROKEN.blend

Additional information, to repro from scratch:

Create two view layers (OK if they bot have the same content/settings)
Enable Environment for the 2nd layer (other passes may work too)
Enable compositing and set up Alpha Overlay so that 1st layer is overlaid on top of 2nd layer
Enable Persistent Data

2nd layer should now be corrupted on render.

Disabling Persistent Data stops the corruption, so there is something wrong with that.

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: NVIDIA GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 471.11 **Blender Version** Broken: version: 2.93.1, branch: master, commit date: 2021-06-22 05:57, hash: `1b8d33b18c` Worked: 2.92 **Short description of error** Enabling Environment pass corrupts view layer **Exact steps for others to reproduce the error** I enabled the Environment pass on a cloned view layer in this file. All of the tiles with geometry in them look corrupted now in that view layer. It goes away if I uncheck Environment. This only happens in 2.93.1; older versions render this file fine. [BROKEN.blend](https://archive.blender.org/developer/F10233778/BROKEN.blend) Additional information, to repro from scratch: - Create two view layers (OK if they bot have the same content/settings) - Enable Environment for the 2nd layer (other passes may work too) - Enable compositing and set up Alpha Overlay so that 1st layer is overlaid on top of 2nd layer - Enable **Persistent Data** ``` ``` 2nd layer should now be corrupted on render. Disabling Persistent Data stops the corruption, so there is something wrong with that.

sentharn commented

2021-07-22 16:02:20 +02:00

Added subscriber: @sentharn

sentharn commented

2021-07-22 16:05:01 +02:00

Error occurs on Blender 2.93.1 on Ubuntu 20.04 as well.

sentharn commented

2021-07-22 16:07:02 +02:00

Example of corruption:

Example of corruption: ![corruption.PNG](https://archive.blender.org/developer/F10233789/corruption.PNG)

sentharn commented

2021-07-22 19:49:00 +02:00

Additional information, to repro from scratch:

Create two view layers (OK if they bot have the same content/settings)
Enable Environment for the 2nd layer (other passes may work too)
Enable compositing and set up Alpha Overlay so that 1st layer is overlaid on top of 2nd layer
Enable Persistent Data

2nd layer should now be corrupted on render.

Disabling Persistent Data stops the corruption, so there is something wrong with that.

Additional information, to repro from scratch: - Create two view layers (OK if they bot have the same content/settings) - Enable Environment for the 2nd layer (other passes may work too) - Enable compositing and set up Alpha Overlay so that 1st layer is overlaid on top of 2nd layer - Enable **Persistent Data** ``` ``` 2nd layer should now be corrupted on render. Disabling Persistent Data stops the corruption, so there is something wrong with that.

Richard Antalik commented

2021-07-23 09:29:23 +02:00

Added subscriber: @iss

Richard Antalik commented

2021-07-23 09:29:23 +02:00

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

Richard Antalik commented

2021-07-23 09:29:23 +02:00

Do you render with GPU? I can't reproduce issue with CPU rendering.

sentharn commented

2021-07-23 19:46:12 +02:00

In #90047#1195118, @iss wrote:
Do you render with GPU? I can't reproduce issue with CPU rendering.

Yes, sorry. CUDA rendering on a GTX 1080.

The broken file has the same issue on CPU only for me. I can repro it from scratch. Is there geometry in the scene? Only the areas with any geometry will be corrupted.

EDIT: You might need to flip the order of alpha over to see the final result in Composite, but if you check the view layer independently in the image viewer it'll be corrupted regardless of it it was composited or not, so the compositor might be a red herring.

> In #90047#1195118, @iss wrote: > Do you render with GPU? I can't reproduce issue with CPU rendering. Yes, sorry. CUDA rendering on a GTX 1080. The broken file has the same issue on CPU only for me. I can repro it from scratch. Is there geometry in the scene? Only the areas with any geometry will be corrupted. EDIT: You might need to flip the order of alpha over to see the final result in Composite, but if you check the view layer independently in the image viewer it'll be corrupted regardless of it it was composited or not, so the compositor might be a red herring.

Brecht Van Lommel commented

2021-07-23 19:55:08 +02:00

Closed as duplicate of #89396

Brecht Van Lommel closed this issue

2021-07-23 19:55:08 +02:00

Brecht Van Lommel commented

2021-07-23 19:57:28 +02:00

Added subscriber: @brecht

Brecht Van Lommel commented

2021-07-23 19:57:28 +02:00

This was fixed already in master / 3.0, it's a matter of time before the fix makes it into the next 2.93 LTS release,

sentharn commented

2021-07-24 02:36:29 +02:00

In #90047#1195552, @brecht wrote:
This was fixed already in master / 3.0, it's a matter of time before the fix makes it into the next 2.93 LTS release,

Thanks brecht. Sorry to have taken up y'all's time. I have been chasing another bug and searching all over the bug tracker for it, but it slipped my mind to search for this one. I'm glad to see that it has been patched and look forward to the next 2.93 LTS release.

> In #90047#1195552, @brecht wrote: > This was fixed already in master / 3.0, it's a matter of time before the fix makes it into the next 2.93 LTS release, Thanks brecht. Sorry to have taken up y'all's time. I have been chasing another bug and searching all over the bug tracker for it, but it slipped my mind to search for this one. I'm glad to see that it has been patched and look forward to the next 2.93 LTS release.

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Enabling Environment pass corrupts view layer in 2.93.1 (regression) #90047