timetunnel(6x) on Linux
The text c4a4edf51a5a, as Debian 4.0 (Etch) shipped it.
Plasma tunnels fade in and out
Flags it lists
-
-dilate -
-end -
-fog -
-fps -
-no-fps -
-no-texture -
-reverse -
-root -
-start -
-tunonly -
-visual -
-window -
-wireframe