> Wouldn't it give the same results to add noise to the original image
> used for the heightfield? That might be a simpler method.

No I'm not after that effect, I'm looking for something that will distort
the HF. Take one HF made of clay and push and pull it about a bit. It still
retains the basic shape but now there are xtra bumps and lumps ridges and
dents. Noise simply adds spikes.

I have a feeling that adding 3Dnoise as in the superpatch and isopatch
objects to the HF would allow undercuts. I would also like to see a twisting
call where the base remained the same but the HF was twisted as it got
higher.


Mick

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