My 4D-grapher in Desmos3D

Hello,
For those who are interested in "true 4D" renderings (in projection, of course) of things like complex functions, 3-sphere, Clifford torus and other tesseracts, I've made this little 4D-grapher with interactive controls, in Desmos3D.
(The first versions used random axis projections and didn't rotate properly, that is, spherically. After a few weeks of trial and headache I've sorted things out and all fell nicely calibrated into place.)
Welcome for trying it here:
https://www.desmos.com/3d/x7w6jdpxgx?lang=nl
--
guido wugi