Always on the lookout for a new direction for gnarls, I hit upon the idea of mixing wave variations. They don’t all play well together, but waves2 and auger do. So, starting with basic gnarl parameters, the idea is to keep the total variation weight on transform #2 equal to one. Start with auger 0.1 – 0.2 (and therefore waves2 0.9 – 0.8) and experiment with the auger variables.
Next level: link the waves transform to an auger transform. Chain-link further if desired.
3. Adding texture
I started this by chain-linking a pulse transform from the auger, but found that it worked just as well introducing about 1% pulse by weight on the original waves transform (that’s pulse = 0.01, other waves variations total = 0.99). The pulse vaiables require crazy values: the scale values divided by, and the frequency values multiplied by, numbers ~10^3.