Rendering instability from Blender 3.5 to 36+ #111324

New Issue

Steve Jarratt · 2023-08-20T17:12:16+02:00

Steve Jarratt commented

2023-08-20 17:12:16 +02:00

System Information
Operating system: macOS 13.4.1
Graphics card: Apple/AMD W6800X Duo

Blender Version
Broken: 3.6 to 4.0
Worked: 3.5.1

Short description of error
I get substantial instability when rendering animation sequences in Blender 3.6 and above, compared to 3.5. For example, I've built a large scene with lots of assets and displaced ground material. Today I left Blender 3.5 rendering and have outputted all 250 frames without a single issue using the GPU.

But previously in 3.6 I get a variety of frames – sometimes 30 or 40, sometime just a single frame – before I have to reboot Blender and start the rendering process again. I've tried all sorts of tricks, like using tiling to render and even switching to CPU-only, but in all cases, the animation process will eventually crash Blender. I thought it might be a VRAM issue, but my dual card has 32GB! My Mac Pro is a standard system with 64GB RAM and no strange or non-Apple additions – it should be rock solid.

Exact steps for others to reproduce the error
I don't have one specific scene to give you, but I've experienced all manner of instability since 3.6 came out – there is obviously a core difference in the app from 3.5 to 3.6+. However, I am really keen to help find the culprit. If you let me know what you need, I can provide crash reports or debug information, just point me in the right direction. Thanks!

**System Information** Operating system: macOS 13.4.1 Graphics card: Apple/AMD W6800X Duo **Blender Version** Broken: 3.6 to 4.0 Worked: 3.5.1 **Short description of error** I get substantial instability when rendering animation sequences in Blender 3.6 and above, compared to 3.5. For example, I've built a large scene with lots of assets and displaced ground material. Today I left Blender 3.5 rendering and have outputted all 250 frames without a single issue using the GPU. But previously in 3.6 I get a variety of frames – sometimes 30 or 40, sometime just a single frame – before I have to reboot Blender and start the rendering process again. I've tried all sorts of tricks, like using tiling to render and even switching to CPU-only, but in all cases, the animation process will eventually crash Blender. I thought it might be a VRAM issue, but my dual card has 32GB! My Mac Pro is a standard system with 64GB RAM and no strange or non-Apple additions – it should be rock solid. **Exact steps for others to reproduce the error** I don't have one specific scene to give you, but I've experienced all manner of instability since 3.6 came out – there is obviously a core difference in the app from 3.5 to 3.6+. However, I am really keen to help find the culprit. If you let me know what you need, I can provide crash reports or debug information, just point me in the right direction. Thanks!

Steve Jarratt added the

labels 2023-08-20 17:12:17 +02:00

YimingWu commented

2023-08-21 04:42:31 +02:00

Hi @StevenJarratt it would be helpful to provide the crash log, also please give us system info, can be saved by using Help > Save System Info.

It would be really helpful to have a scene to test with as well.

Hi @StevenJarratt it would be helpful to provide the [crash log](https://docs.blender.org/manual/en/3.6/troubleshooting/crash.html#macos), also please give us system info, can be saved by using `Help > Save System Info`. It would be really helpful to have a scene to test with as well.

YimingWu added

Status

Needs Information from User

and removed

Status

Needs Triage

labels 2023-08-21 04:42:43 +02:00

Steve Jarratt commented

2023-08-21 11:43:40 +02:00

Hi. The scene I have contains paid-for assets and the Physical Starlight and Atmosphere addon for skies. I can remove the addon, but need to send the file to you directly. Is that okay?

I've included my system info below.

The scene that yesterday rendered 250 frames in 3.5.1, I just ran in 3.6.3. It rendered one frame and then crashed to the desktop. However it does so without leaving a crash report. I will try again to see if it will generate one.

Hi. The scene I have contains paid-for assets and the Physical Starlight and Atmosphere addon for skies. I can remove the addon, but need to send the file to you directly. Is that okay? I've included my system info below. The scene that yesterday rendered 250 frames in 3.5.1, I just ran in 3.6.3. It rendered one frame and then crashed to the desktop. However it does so without leaving a crash report. I will try again to see if it will generate one.

system-info.txt

14 KiB

Steve Jarratt commented

2023-08-21 11:45:34 +02:00

Here are some previous crash reports using Blender 3.6.2 – this was all on the same day when it kept crashing repeatedly.

Blender-2023-08-18-165648.ips

177 KiB

Blender-2023-08-18-152021.ips

176 KiB

Blender-2023-08-18-151551.ips

196 KiB

Blender-2023-08-18-152150.ips