Hi Stefan,

To create the effect you are looking for, you can remap the noise with a sinusoidal ramp.
I don't think there is a way to <sin> the noise otherwise with the heightfield, but you can send elevation from HF the COP context, do the sin function on the noise, and bring the information back as an HF. (I can prepare a little setup for this if you are interested).

There are some nice functions in the HF toolset, like the "project from object", so you can bring any kind of geometry (text) to create bas-relief (?).

Cheers.