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logix1390

attribute noise sop

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Hello,

I am trying to use the attribute noise sop to add some noise to my velocity. 

My basic question is, how do I change the frequency ? The attribute noise only has options for the amplitude, element scale and element size. It does not provide the standard noise options like frequency and roughness. 

I know how to create my own custom velocity in a vop but I wanted to be able to use the attribute noise sop for this. 

I will attach my scene for anyone that wants to take a look. 

Thank you

h17_src_vel_frequency.hip

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element size or scale is the inverse of frequency, arguably more intuitive

and if you use any Fractal Type, you'll see controls for roughness too

 

you can also use Point Velocity SOP in Keep Incoming mode and Add Curl Noise

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