Vray GPU Bucket Issues

[spencerrayfitch]

Hey guys, I’m experiencing a weird issue with GPU and bucket rendering. I am getting a discrepancy in buckets. All textures are mapped appropriately and when doing IPR or progressive, its fine.

I’m running Vray or max - update 3 , 3ds max 2020 -

Ive tried RTX with just GPU’s - 1080ti and a Titan RTX
Ive tried Cuda with all gpus and CPU

Last test could be just CPU on Next but I really dont want to go that route..

THoughts?

[hermit.crab]

Could you send the scene to support@chaosgroup.com so we can take a look? Mention this thread in the e-mail as well and also share your graphics card driver version.

[spencerrayfitch]

Hey, thanks Alek, Im uploading it now. Look for email in next 5 min.

[psanitra]

Maybe adaptive dome light, i tested update 3 yesterday and its still not fixed.

[spencerrayfitch]

Email Sent.

Thanks again.

[spencerrayfitch]

Maybe adaptive dome light, i tested update 3 yesterday and its still not fixed.

ya know, that very well may be the issue. I recall the adaptive bug a few updates back.. WIll try that on my end.

[spencerrayfitch]

Testing on my end confirms that the adaptive dome light is the issue.

[Karol.Osinski]

While AdaptiveDome works well in most situations it still give me the same bucket issue from time to time ,1.5 year after its official release . V-RayNext CPU for Maya here.

[hermit.crab]

Thanks for the report and the provided files. I've logged the issue (Bug-tracker id: VGPU-4402) for our developers to further investigate.

[spencerrayfitch]

Thanks for the report and the provided files. I've logged the issue (Bug-tracker id: VGPU-4402) for our developers to further investigate.

Thanks Alek, hopefully this can be resolved!

[Ihno]

I've got another scene. I sent it to the support.
The ticket number is: 195-744-3476

[hermit.crab]

Ihno Thanks for the provided scene. It is the same issue as in spencerrayfitch's scene. I'll reference your scene in the case as well.

[Soluna]

Hey I just found this post when I googled for a solution. I´m having the exact same problems as it seems. I´m trying to render an ocean scene from PhoenixFD 4 with VRay 4. I found a thread where georgi.zhekov wrote that we could use a VRay Instancer node for the foam particles which I tried and which worked perfectly! But I can´t render my scene now because of these damn bucket errors so I had to switch to VRay Next CPU for now but now the whole animation takes 300 hours to render with a 16-core threadripper. Is there already any fix or workaround for this? What I already tried was re-installing both VRay and PhoenixFD which didn´t help unfortunately. I tried rendering some other scenes I created earlier and they gave me similar bucket errors.






Thanks a lot for your help!

Note:

PhoenixFD version 4.00.00
VRay version: 4.30.02

PC-Specs:

- AMD Threadripper 1950x
- 64GB RAM
- RTX 2080SUPER

Edit:

After a whole day of testing (Removing single objects from the scenes, merging objects into a new scene, installing an older GPU driver, etc.) I figured out that in all the scenes where the bucket errors occured it was a material or a texture which caused it! Maybe because I imported purchased objects into these scenes which had anything applied to them which isn´t supported by GPU. So maybe this helps someone who has similar issues.

[Micha]

Best you send the scene to the support so that this material/texture issue can be fixed.