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I would like to know how to apply a noise controlled by ramp only in the Y direction with volume vop!


shoheikeitoku

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In Houdini 20.5, when creating a cliff-like detail with volume vop, I want to control the unified noise applied in the Y direction with ramp, but I don't know how to do it.
If anyone knows how to do this, please let me know.

I want to control the effect of noise on this video in the Y direction.

 

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