'Exception in Core: Rendering region...' log message - Can't render scenes

[NM-92]

Hello guys.

I'm having some issues when rendering at 10240x5760px some Rhino scenes (bedrooms) that are not bigger than 600mb filesize. I'm attaching the error that i get. For now i've tried three similar scenes on Rhino 6 with latest Vray update (Aug 10) on two workstations.

Workstation 1:
Ryzen 9 3900 4,6ghz
32gb ram ddr4 3000mhz
EVGA RTX2080 Super 8gb
Windows 10

Workstation 2:
Intel Xeon 36 cores
128Gb Ram
4 x 1080ti
Windows 10

On both workstations i tried medium+ quality settings and the following modes:
Progressive
CUDA Hybrid Bucket Rendering
RTX (only on workstation 1)

I could render two images on workstation 2 but i also got the ‘Exception in CORE: Internal error. Please save and restart as soon as possible!’ some times. This whole issue is really confusing so i can't reproduce consistently all the errors i get. I'd appreciate some knowledge here to be able to render this as it's really slowing my workflow down.

Let me know if you need additional info.

Best,

Nicolas

[slavcho.brusev]

Hello,

The error message “Failed to allocate n bytes…” means that there is not enough VRAM on the graphics card to start the render process. Please see the article below explaining how to avoid this:
https://docs.chaosgroup.com/display/...+GPU+rendering

In respect to the “Exception in CORE:...” message could you please send the project where this is occurring to support@chaosgroup.com so we can investigate it in our environment? Just please use the Pack Project tool(V-Ray > Pack Project) to create a zip file containing the 3dm file and the associated assets and send it to us.

[NM-92]

Thanks for the response Slavcho. Where can i send the file?

[slavcho.brusev]

I assume that the file is too large to be attached to an email. In this case you could use file-sharing service(GDrive, Dropbox, etc) and write an email to support@chaosgroup.com and paste the link to the files there(in the email).
Additionally please include a link to this forum post so the recipient can receive context about the files.

Thank you!

[NM-92]

Thanks. Yes, it's about 400-500mb. I've already opened a ticket so i'll follow up there.

Best,
Nicolas.

[dsaldoff]

I was having the same "Exception in Core" error message. The issues started after I updated Rhino 6 and V-ray Next.
NM-92 did you ever get the issue resolved?

[NM-92]

I was having the same "Exception in Core" error message. The issues started after I updated Rhino 6 and V-ray Next.
NM-92 did you ever get the issue resolved?

Hello dsaldoff,

I still have an open ticket regarding this. I'm running some tests but this issue is really random for me. Sometimes i get it , sometimes don't. I really couldn't track down why does it appear. What i know for now is that this doesn't happen when i preview my scene at lower resolutions (800x450px), but it does sometimes when i final render on medium+ / high quality settings , either on hybrid render or cpu only. Still testing on my side.

Best,

Nicolas

[dsaldoff]

NM-92, I'm having the exact same issue unless I render solely on my CPU. In CUDA hybrid mode I can render at low resolutions but as soon as I go to Medium+ or higher I crash. Let me know how things turn out. Good Luck.

[jjoostwoud]

I'm having the exact same issue here!!!

[nikoleta.garkova]

jjoostwoud Please do share a packed project together with a log from the Progress Window containing this error so we can have a look and investigate. You can contact us from the Support Contact form here: https://www.chaosgroup.com/help/cont.../scene#options

Make sure to mention this thread in the email along with information about your CPU/GPU/GPU driver versions, as well as V-Ray/Rhino versions.

[jjoostwoud]

Thank you Nikoleta but I think i solved the problem, i updated my driver and now i think its ok.

[jjoostwoud]

no it did not, i wil send you the file

[roberto_piasco]

Hi everybody, I'm quite new to Vray render (doing some courses now) but having the same issue with a very simple scene.
This i s the message: "Exception in Core: Rendering region ...." and then Rhino crushes.
Any suggestion?

[nikoleta.garkova]

Hi roberto_piasco

Again, please do send us the file you're having troubles with through our contact form so we can have a look. Information regarding your CPU/GPU/GPU driver versions will be greatly appreciated. Thanks!

[konstantin_chaos]

Hi roberto_piasco,

This i s the message: "Exception in Core: Rendering region ...." and then Rhino crushes.

V-Ray 5 for Rhino, update 1 was recently released.
I believe there might be a fix for your issue there.
Can you retest and let us know if you can still reproduce the crash?

Konstantin