Apophysis flame fractal. I wrote a new plugin "escher" based on Escher's Map (z' = z(1 + cos(beta) + i sin(beta)) / 2
). MC Escher used this transformation in some of his artwork, particularly Prentententoonstelling
(Print Gallery) [link]
. This plugin will be available in the next apo-plugins
Postwork in The Gimp.