DISPLAY
to get the default host and display number.
Simple halftone pattern of moving mass points
halftone [--display
host:display.screen]
[--visual
visual]
[--window]
[--root]
[--window-id
number]
[--count
number]
[--spacing
number]
[--sizefactor
number]
[--delay
number]
[--minmass
number]
[--maxmass
number]
[--minspeed
number]
[--maxspeed
number]
[--fps]
Draws the gravity force in each point on the screen seen through a halftone dot pattern. The gravity force is calculated from a set of moving mass points. View it from a distance for best effect.
--visual visual
Specify which visual to use. Legal values are the name of a visual class, or the id number (decimal or hex) of a specific visual.
--window
Draw on a newly-created window. This is the default.
--root
Draw on the root window.
--window-id number
Draw on the specified window.
--count number
How many mass points to move around. Default: 10
--spacing number
Distance between each halftone dot. Default: 14
--sizefactor number
How big each halftone dot should be drawn compared to the spacing value. Default: 1.5
--minmass number
The minimum mass of each mass point. Default: 0.001
--maxmass number
The maximum mass of each mass point. Default: 0.02
--minspeed number
The minimum speed of each mass point. Default: 0.001
--maxspeed number
The maximum speed of each mass point. Default: 0.02 --delay number Per-frame delay, in microseconds. Default: 10000
--fps
Display the current frame rate and CPU load.
DISPLAY
to get the default host and display number.
XENVIRONMENT
to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property.
XSCREENSAVER_WINDOW
The window ID to use with --root.
11 releases since Debian 3.1 (Sarge); the text changed 10 times.
--count since Debian 12 (Bookworm);
--fps since Debian 12 (Bookworm);
--maxmass since Debian 12 (Bookworm);
--maxspeed since Debian 12 (Bookworm);
--minmass since Debian 12 (Bookworm);
--minspeed since Debian 12 (Bookworm);
--root since Debian 12 (Bookworm);
--sizefactor since Debian 12 (Bookworm);
--spacing since Debian 12 (Bookworm);
--visual since Debian 12 (Bookworm);
--window since Debian 12 (Bookworm);
--window-id since Debian 12 (Bookworm).
-count until Debian 11 (Bullseye);
-fps until Debian 11 (Bullseye);
-maxmass until Debian 11 (Bullseye);
-maxspeed until Debian 11 (Bullseye);
-minmass until Debian 11 (Bullseye);
-minspeed until Debian 11 (Bullseye);
-root until Debian 11 (Bullseye);
-sizefactor until Debian 11 (Bullseye);
-spacing until Debian 11 (Bullseye);
-visual until Debian 11 (Bullseye);
-window until Debian 11 (Bullseye).