Denoiser broken on 3000 series cards - RTX3090

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Denoiser broken on 3000 series cards - RTX3090

Postby snakeboxmedia » Tue Oct 06, 2020 6:02 am

snakeboxmedia Tue Oct 06, 2020 6:02 am
Hello,

So I just have been running with a 2080TI and a 3090 for a week or so, no problems all good. Yesterday I pulled out the 2080TI as I am getting another 3090, so to my surpise Denoising is totally broken now. The 3090 doesn't run the denoise at all, no errors in log or anything, but it just flat out doesn't do anything and the show denoise tab also doesn't do anything. I assume its either a Nvidia driver/Octane core/ Optix issue?

I am running the latest official nvidia drivers 456.55. So.... if someone could look at this asap maybe? :) thanks!
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Re: Denoiser broken on 3000 series cards - RTX3090

Postby juanjgon » Tue Oct 06, 2020 8:47 am

juanjgon Tue Oct 06, 2020 8:47 am
Yes, sorry, this seems a known issue. The core team is investigating what is the problem to try to fix it in the next Octane build.

Thanks,
-Juanjo
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Re: Denoiser broken on 3000 series cards - RTX3090

Postby snakeboxmedia » Wed Oct 07, 2020 8:58 am

snakeboxmedia Wed Oct 07, 2020 8:58 am
Alright, well that explains a lot.

Interestingly denoising (optix) also breaks in Arnold... but, it still works fine in Vray, even though they also use the optix libraries for it.

Anyway, I have to ask of course, if there is any rough ETA on when the next release is planned? I get that solving things needs to happen and that can drive the release of things, but currently I can't use the denoiser in octane and it's sort of a problem. :)

Thanks as always!
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Re: Denoiser broken on 3000 series cards - RTX3090

Postby juanjgon » Wed Oct 07, 2020 6:04 pm

juanjgon Wed Oct 07, 2020 6:04 pm
Sorry, I don't have any ETA about when the next Octane core will be available including this fix, but I suppose that soon ...

Thanks,
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Re: Denoiser broken on 3000 series cards - RTX3090

Postby snakeboxmedia » Wed Oct 14, 2020 12:05 am

snakeboxmedia Wed Oct 14, 2020 12:05 am
So... I know 18.5 is out soon and all... but as it still stands, octane is pretty broken on 3000 series.. no hotfixing? thanks
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Re: Denoiser broken on 3000 series cards - RTX3090

Postby juanjgon » Wed Oct 14, 2020 3:55 pm

juanjgon Wed Oct 14, 2020 3:55 pm
Nope, sorry. We don't have a new 2020.1.x core including a fix for this issue yet.

Thanks,
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Re: Denoiser broken on 3000 series cards - RTX3090

Postby snakeboxmedia » Wed Oct 21, 2020 10:48 am

snakeboxmedia Wed Oct 21, 2020 10:48 am
Hi Juanjo,

Any news on this?

I know Houdini 18.5 also has an issue with the 3000 series, the new GPU sparse pyro solver runs really really badly slow even on 3090s, like 1/3 of the speed of a 2080, and someone hinted to me that Nvidia needed to update/fix their drivers for it, but I don't any specifics and if that is something sidefx is talking to them about or what.... but have you guys reached out to them?

on top of that, of course we would love to see an 18.5 build which im sure will come soon, but it's rough not being able to render properly currently in octane :/

Thanks
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Re: Denoiser broken on 3000 series cards - RTX3090

Postby juanjgon » Wed Oct 21, 2020 5:44 pm

juanjgon Wed Oct 21, 2020 5:44 pm
The new 2020.1.5.1 plugin build just released already supports Houdini 18.5. You can download it from the Houdini plugin Releases subforum, but I'm afraid that the problem with the denoiser in the RTX 30xx GPUs is going to be resolved in the Octane 2020.1 builds. The fix will come with Octane 2020.2 because it is related to the CUDA libs, and the latest ones including support for the new GPUs are going to be updated in the upcoming new Octane version only.

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Re: Denoiser broken on 3000 series cards - RTX3090

Postby snakeboxmedia » Fri Oct 30, 2020 11:59 pm

snakeboxmedia Fri Oct 30, 2020 11:59 pm
Soo... I see standalone builds of 2020.2 coming out... any chance of a hotfix houdini plugin or something?
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Re: Denoiser broken on 3000 series cards - RTX3090

Postby juanjgon » Sat Oct 31, 2020 5:02 pm

juanjgon Sat Oct 31, 2020 5:02 pm
We are working on it ;)

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