Blender crash at the end of the render (reading full buffer from disk)

[magicwand (Yao Chan)]

System Information
Operating system: Win 10 21H2 19044.1889
Graphics card: NVIDIA GeForce RTX 3080 Ti (12G) with newest studio driver version
12th Gen Intel(R) Core™ i9-12900KF 3.20 GHz
32G RAM

Blender Version
3.3.0

Short description of error
I have a project that needs to render an image of 27165px * 38976px.
I have tested GPU only, GPU & CPU render, every time when blender completed render all tiles and start to reading full buffer from disk, it wll exit with no warning. When I render a smaller image like 8500px *8500px, there is no such issue.

Here is the blender_debug_output, blender_system_info & crash.txt files.
https://drive.google.com/file/d/14bhhEFNgzMcpam-gnaF5b5T5Z_p28rJY/view?usp=sharing

Error : UNKNOWN EXCEPTION
Address : 0x00007FF9B9384FD9
Module : KERNELBASE.dll
Thread : 00001e40

I have never rendered such large scale image before, if anyone knows why the crash happened, please help me, thank you very much!

[Okidoki]

@magicwand

27165px * 38976px.

*4 (RGBA 8bit depth) = 4.2 GigaByte…
*8 (RGBA 16bit depth) = 8.4 GigaByte…

Stack trace:
KERNELBASE.dll      :0x00007FF9B9384F70  RaiseException
VCRUNTIME140.dll    :0x00007FF9A47863F0  CxxThrowException
blender.exe         :0x00007FF72E5F8B90  ccl::device_memory::host_alloc

…any more questions…

You may wanna split this big image and maybe look here:

Can I render an image in 48000x27000 resolution?

Hi there, As a wild guess, is this about printing stuff you render? Blender works in pixels resolution, not in DPI or PPI. To work with that, you can calcuate it a linear way, but it also depends on the actual printing quality you are aiming for. IMO, at the end of the day, a 16k image can look very good upon any wall, and people won’t stuck their noses on it up close There is an old (old) post about that here: If my guess is wrong, please enlighten us about the plans And in…

or here (some addons are mentioned…):

Rendering a 30k px wall - advice needed

Hi. I need to render an image at about 30000 pixels. My camera is set, and I am wondering if I can somehow split my camera into 3 or 4 cameras to make the process a bit easier. It’s almost like having fixed render regions. These are the aspects I would like to achieve with your answer: Blender crashed when I tried to stop the render after I spotted a mistake. Closing the render at these high resolutions is not a good idea. I would like to render the whole image once and then work on a particu…

[magicwand (Yao Chan)]

@Okidoki

*4 (RGBA 8bit depth) = 4.2 GigaByte…
*8 (RGBA 16bit depth) = 8.4 GigaByte…

Stack trace:
KERNELBASE.dll      :0x00007FF9B9384F70  RaiseException
VCRUNTIME140.dll    :0x00007FF9A47863F0  CxxThrowException
blender.exe         :0x00007FF72E5F8B90  ccl::device_memory::host_alloc

Thank you for your reply! I’m sorry that I don’t understand code at all. Do you mean my GPU & CPU can’t support rending such a large size image, which causes blender crash?
I will try the addon to split the image, that seams to be a good way to solve the problem.

[Okidoki]

The exeptions seems to be raised after calling some memory allocation… yes… and the image alone is BIG, there is also the 3D data (some 100000 *4 (float) * 3 (XYZ) …so also some millions… and texture you use… and your GPU has 12GB…

[magicwand (Yao Chan)]

Thank you, I understand now. Your reply and recommendation are really help me a lot!!