A black and white triangular pattern warped into a spiral.
https://mastodon.r-flash.eu/system/media_attachments/files/111/446/726/787/612/251/original/f471f0e681a672bf.png
I ran into an interesting class of patterns a while ago. I managed to distill the algorithm to just a bunch of operations since then. These are polygonal SDFs run through fBm, a periodic function, and fBm again.
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.