Resolved : due to auto_white balance ;;;;CRASH since yesterday unable to render anything

[skulldoestalkfast]

Everything went normal, untill yesterday where my Vray5 for c4D began to crash on sam erenders it was able to render the morning . I have to reboot the computer everytime because the screen freezes . Super anoying in mid-production !
Any idea?

thanks

[skulldoestalkfast]

another console grab

[skulldoestalkfast]

seems like all the system is going mad

[skulldoestalkfast]

crashes when i activate the override tab Auto_white balance", must be that, because it renders nicelly when the option is not active

[Juan Ferreira]

Same here, I installed latest nightly and was impossible to render: Always a popup with "core problem". I reinstalled the previous and worked witout problem

[deyan.hadzhiev]

Hi, can you give an example scene or the crash dump files, so we may either reproduce this or check the dump.

Juan Ferreira - can you give an example scene that reproduces this? Are you using V-Ray GPU and is it CUDA or RTX?

[skulldoestalkfast]

hi Deyan, I was rendering on CUDA (2 X RTX5000 + 10cores XEON) The crash is very mysterious thing, sometimes it renders ( like now), but at one moment it seems the whole system is going crazy. I first thought also it was a question of reached GPU limits on my computer, but as you could see in the screen grab the render uses 4 or 6 out of 16GB for each card. I reduced some 4K maps to 1K or 2K, it renders well. Pushed them again to 4K and.. renders well untill I try a render with "auto white balance". The absurdity of the event is that I tried again a few minuts ago and ... no bug or crash at all, all seems right. It is clearly something strange. Where can I locate the crash dump file?

[skulldoestalkfast]

another crash right now: as the Vray advanced Bitmap option is noat available for now in the menu, I put a Vray Bitmap channel inside a C4D filter, to correct the brightness of a color map. Went well but after a few minuts... crash. Can this kind of trick be responsible for all the crashes in my machine?

[deyan.hadzhiev]

I'm attaching a screenshot with the possible location - note that the directory should be different on your machine. You can easily open it from Preferences -> Open Preferences Folder, and check its _bugreports subdirectory.
The files that are of interest there are the "_BugReport.txt" and "minidump.dmp".

[Juan Ferreira]

Hi Deyan sorry but I can not send the scene because yesterday I was worked on 4-5 scenes and when my computer did crashed 2 or 3 times I resinstalled Vray and I dont remenber what scene was the first.

I can say you that I was rendered with GPU (Cuda), R 21,

Attach files that you request

If you need something more, tell me please

[skulldoestalkfast]

here is a bug report, and the minidump Deyan. Do not know if they are the right ones ..

[skulldoestalkfast]

so this is a new crash: just modified the vignetting parameter of the camera from 6 to 10 . Rendered without problem before, (and I removed all the filters I had in the material texture editor).
It seems like somehow it crashes when modifying some parameters :/ , camera focal length, vignetting or auto white balance for example

[skulldoestalkfast]

this kind of message appears every time in the console ... (I downloaded the latest version of the licence server a few days ago). Do not know if the problems are related to this point.

[skulldoestalkfast]

came back to driver 460.89 that worked fine untill I changed it for supported driver 461.9. Lets see if everything is more stable.

[skulldoestalkfast]

everything seems ok now, no more crashes using previous driver 460.89