Clouds - weird repetitive noise

[robert_sandi]

Hello forum,

I'm experiencing a problem with the clouds. They have a weird repetitive noise. Anyone knows how to fix this?

[vladimir_krastev]

Hi is this noise appearing in every scene even a new simple scene? How did you render the attached image - bucket, progressive, anything unusual in the settings?

[robert_sandi]

Hi,

I created a new simple scene, put sun with enviroment, turned clouds on and played with parameters a bit and this is what I got. It looks like a big cross in the middle of the cloud and the pattern. It apears on both progressive andf bucket, it looks similar.
Here is the max file: https://mab.to/pSUqzPmAG

[vladimir_krastev]

Hi I was able to reproduce what you are describing in a simple scene. Here is my test:



It seems that with lower thickness the clouds start to appear like that.
I logged this for improvement under VMAX-12477 in our bug-tracking system.