Weighting noise generation in 3D space to mimic cloud pillar formations

Started by Moodles, August 15, 2022, 12:45:50 PM

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Moodles

Hey team Terragen,

So I have a problem that's been bugging me for ages, I use noise to mask areas of cloud within the atmosphere. Noise is generally great for this, however (as I understand) it generates equally throughout an XYZ coordinate system. Now I can of course mask that off at altitude which delivers somewhat of a solution. However if you look at this from a Y perspective the areas of noise appear distributed similar to this:



Now a more realistic formation from a Y perspective might appear weighted to a certain altitude with noise appearing only along a certain Y depth:



So my question is, is it possible to weight noise generation like this?