DISPLAY
to get the default host and display number.
Tornado screen saver.
cyclone [--root/-r]
[--maxfps/-x
number]
[--vsync/-y
number]
[--dpms/-M
number]
[--cyclones/-c
number]
[--particles/-p
number]
[--size/-i
number]
[--complexity/-C
number]
[--speed/-e
number]
[--stretch/-s]
[--no-stretch/-S]
[--showcurves/-v]
[--no-showcurves/-V]
From Terry Walsh (http://reallyslick.com): "This screen saver makes tornadoes on your screen. I wrote it for my storm chasing partner, but you can have it too."
Ported to Linux by Tugrul Galatali.
--root
Draw on the root window.
--maxfps number
Set maximum frame rate.
--vsync number
Limit redraws to specified number of vertical refreshes. 0 - 100. Default: 1
--dpms number
Stop rendering new frames if the display is not on. 0 - 1. Default: 1
--cyclones number
Number of cyclones. 1 - 10. Default: 1
--particles number
Particles per cyclone. 1 - 10000. Default: 200
--size number
Particle size. 1 - 100. Default: 7
--complexity number
Cyclone complexity. 1 - 10. Default: 3
--speed number
Speed. 1 - 100. Default: 10
--stretch
Stretch. Default: True
--showcurves
Show Curves. Default: False
DISPLAY
to get the default host and display number.
--dpms since Debian 6.0 (Squeeze);
--vsync since Debian 6.0 (Squeeze).
--nice until Debian 5.0 (Lenny).