xsnow - Man Page

Snow and Santa on your desktop


xsnow [OPTION]...


Xsnow shows an animation of Santa and snow on your desktop. Xsnow can also run in one or more windows, see options -xwininfo, -id . (These options only work satisfactorily in an X11 environment.) Xsnow depends on an X11 environment. This is forced by setting the environment variable GDK_BACKEND=x11 before initializing the GTK. Hopefully, this will ensure that xsnow also runs in a Wayland environment for some time.

If xsnow is misbehaving, try to remove the file $HOME/.xsnowrc.

General options

Below: <n> denotes an unsigned decimal (e.g 123) or octal (e.g. 017) or hex (e.g. 0x50009) number. <c> denotes a string like "red" or "#123456".

-h, -help

print this text.

-H, -manpage

print man page.

-v, -version

prints version of xsnow.

-display name

Drop the snowflakes on the given display. Make sure the display is nearby, so you can hear them enjoy...


Run xsnow in vintage settings.


Do not read config file (see Files).


Do not read or write config file (see Files).


Start with hidden interactive menu.


Do not start and show interactive menu.

-theme <n>

1: use xsnow theme for menu; 0: use system theme (default: 1)

-checkgtk <n>

0: Do not check gtk version before starting the user interface. 1: Check gtk version before starting the user interface. (default: 1).

-id <n>, -window-id <n>

Snow in window with id (for example from xwininfo).


Act as if window is a desktop.

-movewindow <n>

1: move snow window to position 0,0 (default: 1)

-allworkspaces <n>

0: use one desktop for snow, 1: use all desktops (default: 1).


Snow above your windows. Default is to snow below your windows. NOTE: in some environments this results in an un-clickable desktop.


Use a cursor to point at the window you want the snow to be fallen in.

-bg <c>    

Use color <c> to erase obsolete drawings (snow, santa, ...). Useful in for example KDE: create mono colored background, and specify the same color here, e.g: -bg "#123456" (default: #000000.) See also -usebg.

-usebg <n>

1: Use background color (see -bg) to erase. 0: Do not. (default: 0). Only works if not using GTK-Cairo for painting, see also -wantwindow.


Use XClearArea(...,exposures=True) when erasing.


(Default) Use XClearArea(...,exposures=False) when erasing. Exposures have effect with '-xwininfo'.

-stopafter <n>

Stop xsnow after so many seconds.


Force to paint on (virtual) root window.
Use this for xscreensaver: in ~.xscreensaver add:
   xsnow -root
On some systems you need to add the flag -nomenu to disable the menu:
   xsnow -root -nomenu
Probably, you want to start xscreensaver as follows:
   xscreensaver -no-capture-stderr

-wantwindow <c>

Specify your favorite window for Santa:


If possible, use GTK-Cairo window for Santa snow and scenery.


If possible, use transparent X11-window for Santa, snow and scenery.


Write extra info about some mouse clicks, X errors etc, to stdout.

-cpuload <n>

How busy is your system with xsnow: the higher, the more load on the system (default: 100).

Snow options

-snowflakes <n>

The higher, the more snowflakes are generated per second. Default: 100.


(Default) Animate blow-off snow.


Do not animate blowing snow from trees or windows

-sc <c>  

Use the given string as color for the flakes (default: snow).

-snowspeedfactor <n>

Multiply the speed of snow with this number/100 (default: 100).

-snowsize <n>

Set size of (non-vintage) snow flakes (default: 8).


(Default) Show snow.

-nosnow -nosnowflakes

Do not show snow.

-flakecountmax <n>

Maximum number of active flakes (default: 300).

-blowofffactor <n>

The higher, the more snow is generated in blow-off scenarios (default: 40).

Tree options

-treetype <n>[,<n> ...]

Choose tree types: minimum 0, maximum 7 (default: 1,2,3,4,5,6,7,). Thanks to Carla Vermin for numbers >=3! Credits: Image by b0red on Pixabay.

-treetype all

(Default) Use all non-vintage available tree types.

-tc <c>

Use the given string as the color for the vintage tree (default: chartreuse). Works only for treetype 0.


Do not display the trees.


(Default) Display the trees.

-trees <n>

Desired number of trees. Default 10.

-treefill <n>

Region in percents of the height of the window where trees grow (default: 30).

Santa options


(Default) Display Santa running all over the screen.


Do not display Santa running all over the screen.


(Default) With Rudolph.


No Rudolph.

-santa <n>

The minimum size of Santa is 0, the maximum size is 4. Default is 3. Thanks to Thomas Linder for the (big) Santa 2! Santa 3 is derived from Santa 2, and shows the required eight reindeer. The appearance of Santa 4 may be a surprise, thanks to Carla Vermin for this one.

-santaspeedfactor <n>

The speed Santa should not be excessive if he doesn't want to get fined. The appropriate speed for the Santa chosen will be multiplied by santaspeedfactor/100 (default: 100).

Celestial options


(Default) It will get windy now and then.


By default it gets windy now and then. If you prefer quiet weather specify -nowind.

-whirlfactor <n>

This sets the whirl factor, i.e. the maximum adjustment of the horizontal speed. The default value is 100.

-windtimer <n>

With -windtimer you can specify how often it gets  windy. It's sort of a period in seconds, default value is 30.

-stars <n>

The number of stars (default: 20).


(Default) Show meteorites.


Do not show meteorites.

-moon <n>

1: show moon, 0: do not show moon (default: 1).
Picture of moon thanks to  Pedro Lasta on Unsplash.

-moonspeed <n>

Speed of moon in pixels/minute (default: 120).

-moonsize <n>

Size of moon in pixels (default: 100).

-halo <n>

1: show halo around moon, 0: do not show halo (default: 1).

-halobrightness <n>

Brightness of halo (default: 25).

Fallen snow options

-wsnowdepth <n>

Maximum thickness of snow on top of windows (default: 30).

-ssnowdepth <n>

Maximum thickness of snow at the bottom of the screen (default: 50).

-maxontrees <n>

Maximum number of flakes on trees. Default 200.


(Default) Keep snow on top of the windows.


Do not keep snow on top of the windows.


(Default) Keep snow at the bottom of the screen.


Do not keep snow at the bottom of the screen.


(Default) Keep snow on trees.


Do not keep snow on trees.


(Default) Have snow sticking anywhere.


Do not have snow sticking anywhere.


(Default) Create fluff on fallen snow.


Do not create fluff on fallen snow.

-offsetx <n>

Correction for window-manager provided x-coordinate of window. Default 4.

-offsety <n>

Correction for window-manager provided  y-coordinate of window. Default 0.

-offsetw <n>

Correction for window-manager provided width of window. Default -8.

-offsets <n>

Correction for bottom coordinate of your screen. A negative value lifts the xsnow screen up. Default 0.

Birds options

-anarchy <n>

Anarchy factor ( 0..100 default: 50).

-birdscolor <c>  

Use the given string as color for the birds (default: #361A07).

-birdsonly <n>

Show only birds ( 0/1 default: 0).

-birdsspeed <n>

Speed of birds ( 0..300 default: 100).

-disweight <n>

Eagerness to keep desired distance ( 0..100 default: 20).

-focuscentre <n>

Eagerness to fly to the focus ( 0..300 default: 100).

-followneighbours <n>

Eagerness to follow neighbours ( 0..100 default: 30).

-nbirds <n>

Number of birds ( 0..400 default: 70).

-neighbours <n>

Number of neighbours to watch ( 0..20 default: 7).

-prefdistance <n>

Preferred distance to neighbours ( 0..100 default: 20).

-showbirds <n>

Show birds ( 0/1 default: 1).

-showattr <n>

Show attraction point ( 0/1 default: 0).

-followsanta <n>

Birds like Santa ( 0/1 default: 1).

-viewingdistance <n>

Viewing distance ( 0..95 default: 40).



Settings are read from and written to this file. See flags -noconfig and -defaults how to influence this behaviour.
   NOTE: the following settings are not read or written:
         -above  -defaults  -desktop  -fullscreen -noconfig -id
         -nomenu -stopafter -xwininfo -display    -noisy    -checkgtk


If present, xsnow will try this file for displaying the trees. The format must be xpm (X PixMap) format, see https://en.wikipedia.org/wiki/X_PixMap .
   NOTE: when this file is present, no menu will appear.


where <n> = 1,2,3,4. If present, xsnow will try this files (4 of them) for displaying Santa. The format must be xpm (X PixMap) format, see https://en.wikipedia.org/wiki/X_PixMap .
   NOTE: when these files are present, no menu will appear.


   $ xsnow -defaults        # run with defaults.
   $ xsnow                  # run using values from the config file.
   $ xsnow -treetype 1,2    # use tree types 1 and 2.


- Xsnow needs a complete rewrite: the code is a mess.
- The flags are not consistent, caused by trying to be
   compatible with older versions.
- Xsnow stresses the Xserver too much.
- Xsnow does run in Wayland, but will not snow on all windows.
- Xsnow tries to create a click-through window. This is not successful
 in for example FVWM/xcompmgr. In that case, xsnow tries to keep
 the snow window below all others, resulting in a transient effect
 when you click on the desktop. Sadly, no FVWM menu will appear...
- Remnants of fluffy snow can persist after removing the
   fallen snow. These will gradually disappear, so no big deal.
- Remnants of meteorites can persist after passage of Santa.
   These will eventually be wiped out by snow or Santa.
- Xsnow tries to adapt its snowing window if the display
   settings are changed while xsnow is running.
   This does not function always well.
- In multi-screen environments, it depends on the display settings
   if it is snowing on all screens. Experiment!


2020 xsnow-3.2.2