The Aizawa Attractor:
ẋ = (z - b) * x - d * y
ẏ = d * x + (z - b) * y
ż = c + a*z - z³ / 3 - (x² + y²) * (1 + e * z) + f * z * x³
Primitive perspective square viewer copied from Fairy Dust (here: 524288 animated points)
This GPU doodle builds on a precursor with a slightly simpler formula: aizawa-attractor.html
I've learned about it here: https://twitter.com/Rainmaker1973/status/945406958319886337