OpenVDB: Unable to reduce noise

[kosso_olli]

Hey,
I have a problem here. Which knobs do I have to twist in order to reduce the noise in OpenVDB volumes? Take a look at the screenshot, you can clearly see the noise.
I tried the minimum shading rate parameter, raising min. AA samples, and I tried to raise the samples parameter for the VolumeGrid in the effects rollout. Nothing helped, the noise level stayed the same. Could somebody help me out with this?

Regards

Oliver

[kosso_olli]

I tried everything, but I can't find a solution. How can I get a smoother result?

[kosso_olli]

No idea, anybody?

[georgi.zhekov]

Hello,

Try to reduce or turn off completely the Light Cache Speedup value in the Volume Grid settings.
This should help with the noise but it could make the renders slower.

[kosso_olli]

Thanks Georgi, I will try that and report back.

[kosso_olli]

I can confirm that this solution is working. Thanks, Georgi!