VoroNoise
As the name implies - it is a generator based on Voronoi.
If you take a look into the macro, you will notice that it doesn’t differ much from the technique perlin uses.
But with voronois, the results are absolutely different. And I’m not talking about some abstract freak heightfields - VoroNoise can produce quite realistic results.
Can be found here (as usual): > pfs <
edit: http://nkblog.nkdev.de/?page_id=446
ps: the sharpening macro has been updated and gives standard users much more control now!