Agate

Inspiration from Jessica Rosenkrantz‏ Agate work
https://n-e-r-v-o-u-s.com/blog/?p=7821
https://twitter.com/nervous_jessica/status/886979062870282244
https://twitter.com/nervous_jessica

This is done using curves transformed with
* SimplexNoise
http://www.food4rhino.com/app/4d-noise
* offset + curve boolean from Clipper Library
http://www.food4rhino.com/app/clipper-grasshopper
* Gradiant color using color variation from an image, here a lotus from
http://www.laoujetemmenerai.com/article/la-fleur-de-lotus-idole-vegetale-de-l-asie_a5871/1
* Line coloring using Human
http://www.food4rhino.com/app/human