surfaces(6x) on Linux
The text bcf3c870a324, as Debian 12 (Bookworm) shipped it.
Draws some interesting 3d parametric surfaces.
Flags it lists
-
--delay -
--fps -
--no-spin -
--no-wander -
--root -
--speed -
--spin -
--visual -
--wander -
--window -
--window-id