Ray Visibility shadow uncheck for an object crashes Blender #90012
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Reference: blender/blender#90012
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System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 980 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 471.41
Blender Version
Broken: version: 2.93.1, branch: master, commit date: 2021-06-22 05:57, hash:
1b8d33b18c
Worked: (newest version of Blender that worked as expected)
Short description of error
If i deactivate the shadow of a cloud in the Object Panel under Ray Visibilty and switch the preview to Cycles, Blender always crashes on the first sample. If under Ray Visibilty all hooks are activated, it will be rendered without any problems. I am using the latest version, but have already tried an older one, but the result is the same. I also installed the latest graphics driver and tried to change the tile size from 512 to 128, but no improvement. Once I briefly received the following error message before the crash: Launch exceeded timeout in cuCtxSynchronize()
But it can't really be due to too little vram if everything is rendered without problems, if all hooks are activated as i understand it. The problem only affects my cloud.
Here is a picture of the node group of the cloud:
I hope for a quick solution/bugfix if possible, as I urgently need this for a render that I'm currently doing.
Thanks!
Test File:
system-info.txt
blender_debug_output.txt
Wolke.blend
Added subscriber: @Tim-Masin
Added subscriber: @PratikPB2123
Changed status from 'Needs Triage' to: 'Needs User Info'
@Tim-Masin , can you please add a simple test file?
Without the file it's hard to tell what exactly the issue is. Can you please add that? With file please also mention the step to recreate the crash.
Hello,
thanks for your reply. I have now removed everything from the file except for the cloud and even then the problem occurs if i uncheck something under Ray Visibility.
To recreate the issue, you have just to select the cloud and in the Object Panel under Ray Visibility deselect a tick such as the shadow and then go to the rendered preview. Wolke.blend
Best Regards,
Tim
Thank you for the file. I can not reproduce the crash. Checked with 2.93.2 (
9e64fd461a
).Can you please add the system info file generated from help menu? (1Help -> Save System Info`)
Also: please attach the crash logs: https://docs.blender.org/manual/en/latest/troubleshooting/crash.html#windows
Hello,
hmm strange. But Blender 2.93.2 isn´t out yet. Are you using the developer version? system-info.txt
I attached the system info file. But i can´t find the crash logs in the /tmp/ directory or am I doing something wrong here?
Did you start blender with
blender_debug_log.cmd
?blender_debug_log
(located in same directory where blender.exe is)blender_debug_output
from these two files, you will find the path of crash.txt at very bottom of the file.C:\Users\user_name\AppData\Local\Temp\
and add the file here.Also add
blender_debug_output.txt
file.No, not developer version, they are daily builds actually: https://builder.blender.org/download/daily/
Hello,
I've now done it like this and let it crash. I attached the debug file but I can't find the crash.txt file anywhere 🤔blender_debug_output.txt
Changed status from 'Needs User Info' to: 'Needs Triage'
Optix or Cuda which render engine you are using? Also, does this happen with both CPU and GPU?
I can not reproduce the crash here may be other triagers, developers will help.
System Information
Hello,
i used Cuda but have now switched to Optix, but the same result. If I switch to CPU only, it doesn't crash immediately, but it just stops with "Path Tracing Sample 1/32" just like with GPU Compute, only that it crashes faster. When I turn on the shadows again, it renders without any problems.
This comment was removed by @PratikPB2123
Does anyone know anything else? Or could someone else try rendering the cloud without shadows? I just can´t figure out why it crashes. 😥
Hi @Tim-Masin , I will ask someone with NVIDIA GPU to check the issue.
Hello Patrik, many thanks!
Added subscriber: @rjg
Guess @rjg has the same system.
Hi @rjg , can you please check the issue?
@PratikPB2123 Sorry, I don't really have time to fully investigate this. Not sure if this is the cause, but on Linux I'm getting a signed integer overflow:
Blender 3.0.0
Blender 2.93.1
Hello,
thanks for your answers. I finally solved it by setting the Max Steps to 64 in the Render Setting for Volume.
Added subscriber: @lichtwerk
Changed status from 'Needs Triage' to: 'Needs User Info'
This is from the logs:
So following the mentioned page from the manual, does the following help?
Changed status from 'Needs User Info' to: 'Archived'
No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed.
Thanks again for the report. If the problem persists please open a new report with the required information.