Denoiser

[tmcthree]

I can't seem to figure out how to work the denoising features at all. Does it work with CUDA rendering?

Are there any tutorials available. I can't find any.

[vlado]

Yes, it should work with GPU rendering. Start by adding a Denoiser render element to your render settings - after the render is complete, you should get a denoised version of the image in it. You can then play with the settings in the Denoiser render element itself to adjust the result.

Best regards,
Vlado

[tmcthree]

Thanks, but I can't seem to get any effect at all, even when the settings are set to high/strong. Two questions.

Does the render have to complete before the denoising is calculated?

Does it work with texture baking?

[vlado]

If you are using the bucket sampler, then yes - the render needs to complete before the Denoiser render element is calculated and filled in. For the progressive sampler, then the denoiser render element will be updated occasionally during rendering too.

I don't see a reason why it wouldn't work with texture baking.

Best regards,
Vlado

[savage309]

When you add the denoiser render element in the scene, it will automatically add a few render elements in the VFB. One of them is named noiseAmount. Please check that t is there and that it is not completely black. This can happen if you have opened old scene (probably a while ago) and choosed "no" in the pop up asking to switch to the 3.3+ image sampler and settings.
If that is the case reseting the scene settings will solve it. Other option is to render to exr and denoise with the external denoise tool which has option for noiselevel which can be manually set, but I would strongly suggest just to reset the settings since it is more user friendly.

Best,
Blago.

[tmcthree]

ok thanks guys,
Final question before I try again. It should with CUDA rendering?

[savage309]

Yes, here is a video of production with RT GPU and denoiser https://twitter.com/savage309/status/751024759845027840

Best,
Blago.

[^Lele^]

Thanks, but I can't seem to get any effect at all, even when the settings are set to high/strong.

Make sure you look at the VRayDenoiser render element, not the RGB.

[nfowler]

Anyone find with nuke and rv that's unable to list the noiseLevel AOV. But its there in djv and exrinfo

[tashko.zashev]

Anyone find with nuke and rv that's unable to list the noiseLevel AOV. But its there in djv and exrinfo

It should be named "Other" in the channel list. This is if you use Nuke to open multi-channel EXRs.

[tmcthree]

Hi Blago, what do you mean "reset the scene settings"?

[savage309]

Hi Blago, what do you mean "reset the scene settings"?

Hm, what was it in the end ?
Do you have noiseLevel render element / is it black ?

Best,
Blago.

[tmcthree]

Hm, what was it in the end ?
Do you have noiseLevel render element / is it black ?

Best,
Blago.

Yes, denoiser is identical to the RGB and the noise level is black.

[yolov]

Can you open the Maya script editor and in a MEL tab execute this line:

getAttr vraySettings.dmcAdaptiveMethod;

If the returned value is 0, run this MEL line:

setAttr vraySettings.dmcAdaptiveMethod 1;

If the returned value is 1, we'll probably need a scene to see what's wrong.

[tmcthree]

Thats it, thanks Yolov.
Should I have set that somewhere in the UI? I'm rendering with CUDA so the settings for the sampler are limited.