CPU and GPU tiles do not have the same light rendering #91570

New Issue

Pablo · 2021-09-21T14:47:16+02:00

Pablo commented

2021-09-21 14:47:16 +02:00

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 471.68
Graphics card: NVIDIA GeForce GTX 1060
CPU : AMD 5900X

Blender Version
Broken: version: 2.93.4, branch: master, commit date: 2021-08-31 09:23, hash: b7205031ce
Worked: (newest version of Blender that worked as expected)

Short description of error
When I run a CPU+GPU render I sometimes get a bug on the final tile render.
It happens randomly on my projects and the only solution to avoid this problem is to render only on the GPU or CPU.
According to my tests, this does not come from the denoiser, addon...

If I open a new blender with a cube, a plane, and a similar texture sky the problem does not appear, if I import in addition the same scene FBX, still no problem. But if the bug appears in one of my projects while before all work correctly then it is impossible to make it disappear.

Exact steps for others to reproduce the error
210526P VILLA ROQUES 01.blend

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 471.68 Graphics card: NVIDIA GeForce GTX 1060 CPU : AMD 5900X **Blender Version** Broken: version: 2.93.4, branch: master, commit date: 2021-08-31 09:23, hash: `b7205031ce` Worked: (newest version of Blender that worked as expected) **Short description of error** When I run a CPU+GPU render I sometimes get a bug on the final tile render. It happens randomly on my projects and the only solution to avoid this problem is to render only on the GPU or CPU. According to my tests, this does not come from the denoiser, addon... If I open a new blender with a cube, a plane, and a similar texture sky the problem does not appear, if I import in addition the same scene FBX, still no problem. But if the bug appears in one of my projects while before all work correctly then it is impossible to make it disappear. **Exact steps for others to reproduce the error** [210526P VILLA ROQUES 01.blend](https://archive.blender.org/developer/F10527416/210526P_VILLA_ROQUES_01.blend) ![No_Bug_Tiles_CPU+GPU_FBX_IMPORT.png](https://archive.blender.org/developer/F10527642/No_Bug_Tiles_CPU_GPU_FBX_IMPORT.png) ![No_Bug_Tiles_CPU+GPU.png](https://archive.blender.org/developer/F10527641/No_Bug_Tiles_CPU_GPU.png) ![Bug_Tiles_CPU+GPU.png](https://archive.blender.org/developer/F10527406/Bug_Tiles_CPU_GPU.png)

Pablo commented

2021-09-21 14:47:16 +02:00

Added subscriber: @PabloCio

Peter Baintner commented

2021-09-21 15:28:29 +02:00

Added subscriber: @PeterBaintner

Peter Baintner commented

2021-09-21 15:28:29 +02:00

Cannot confirm:

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 471.41
Amd Ryzen 3900x

Blender Version
2.93.4, branch: master, commit date: 2021-08-31 09:23, hash: b7205031ce

From what I saw, have you tried updating your graphics card driver?

Cannot confirm: **System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: NVIDIA GeForce GTX 1080 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 471.41 Amd Ryzen 3900x **Blender Version** 2.93.4, branch: master, commit date: 2021-08-31 09:23, hash: `b7205031ce` From what I saw, have you tried updating your graphics card driver?

Thomas Dinges commented

2021-09-21 15:53:22 +02:00

Added subscriber: @ThomasDinges

Thomas Dinges commented

2021-09-21 15:53:22 +02:00

Does the issue happen with master? Cycles-X was merged today 0803119725, maybe that fixes your issues?

Does the issue happen with master? Cycles-X was merged today 08031197250aeecbaca3803254e6f25b8c7b7b37, maybe that fixes your issues?

Pablo commented

2021-09-21 15:54:00 +02:00

In #91570#1223057, @PeterBaintner wrote:
Cannot confirm:

From what I saw, have you tried updating your graphics card driver?

I just installed the latest GPU driver and I still have the same problem.

> In #91570#1223057, @PeterBaintner wrote: > Cannot confirm: > > From what I saw, have you tried updating your graphics card driver? I just installed the latest GPU driver and I still have the same problem.

Pablo commented

2021-09-21 15:55:31 +02:00

In #91570#1223075, @ThomasDinges wrote:
Does the issue happen with master? Cycles-X was merged today 0803119725, maybe that fixes your issues?

I did not try, Cycle-X is not stable enough for my intensive use.

> In #91570#1223075, @ThomasDinges wrote: > Does the issue happen with master? Cycles-X was merged today 08031197250aeecbaca3803254e6f25b8c7b7b37, maybe that fixes your issues? I did not try, Cycle-X is not stable enough for my intensive use.

Aaron Carlisle commented

2021-09-21 18:14:51 +02:00

Added subscriber: @Blendify

Aaron Carlisle commented

2021-09-21 18:14:51 +02:00

@PabloCio Cycle-X is now in Blender 3.0 Alpha and reflects the latest official version of Cycles.
It is helpful for developers to test if the latest Alpha contains the bug that you are experiencing.

You can download the latest alpha version here: https://builder.blender.org/download/daily/

@PabloCio Cycle-X is now in Blender 3.0 Alpha and reflects the latest official version of Cycles. It is helpful for developers to test if the latest Alpha contains the bug that you are experiencing. You can download the latest alpha version here: https://builder.blender.org/download/daily/

Aaron Carlisle commented

2021-09-21 18:15:16 +02:00

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

Aaron Carlisle commented

2021-09-21 18:18:56 +02:00

Related report: #89351, #85078

Judging by these reports it looks to be an issue with large objects, try to scale your whole scene down to see if that fixes the issue.

Related report: #89351, #85078 Judging by these reports it looks to be an issue with large objects, try to scale your whole scene down to see if that fixes the issue.

Brecht Van Lommel commented

2021-09-22 18:59:47 +02:00

Closed as duplicate of #89351

Brecht Van Lommel closed this issue

2021-09-22 18:59:47 +02:00

Brecht Van Lommel commented

2021-09-22 19:00:05 +02:00

Closed as duplicate of #85078

Brecht Van Lommel closed this issue

2021-09-22 19:00:05 +02:00

Brecht Van Lommel commented

2021-09-22 19:01:02 +02:00