Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
nerverot(6)		      XScreenSaver manual		   nerverot(6)

NAME
       nerverot	- induces edginess in the viewer

SYNOPSIS
       nerverot	 [--display host:display.screen] [--foreground color] [--back-
       ground color] [--window]	[--root] [--window-id  number][--mono]	[--in-
       stall]  [--visual  visual] [--db] [--no-db] [--colors integer] [--delay
       microseconds] [--count integer] [--line-width integer]  [--event-chance
       fraction]     [--iter-amt     fraction]	   [--nervousness    fraction]
       [--max-nerve-radius fraction] [--min-radius integer] [--max-radius  in-
       teger] [--min-scale fraction] [--max-scale fraction] [--fps]

DESCRIPTION
       The  goal of nerverot is	to be interesting and compelling to watch, yet
       induce a	state of nervous edginess in  the  viewer.  This  manpage  de-
       scribes v1.3 of the program.

OPTIONS
       nerverot	accepts	the following options:

       --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.

       --mono  If on a color display, pretend we're on a monochrome display.

       --install
	       Install a private colormap for the window.

       --visual	visual
	       Which  visual  to  use.	 Legal values are the name of a	visual
	       class, or the id	number (decimal	or hex)	of a specific visual.

       --db    --no-db Use double-buffering (or	 not,  respectively).  Double-
	       buffering  may  make  things look better	for larger line	widths
	       and/or larger numbers of	blots,	but  "better"  may  equate  to
	       yielding	 less of the desired edginess effect. You'll be	calmer
	       after watching the double-buffered variant; you're more	likely
	       to go into epileptic fits with it off. Hence, it	is off (false)
	       by default, resource doubleBuffer.

       --colors	integer
	       How many	colors should be used (if possible). The colors	form a
	       smooth  ramp between two	randomly-chosen	colors.	Defaults to 4,
	       resource	colors.

       --delay microseconds
	       The interframe delay, in	microseconds. Defaults to  10000,  re-
	       source delay.

       --max-iters integer
	       The maximum number of iterations	(frames) before	a new model is
	       generated.  The actual number of	iterations per model is	a ran-
	       dom number between 1 and	this value. Defaults to	1200, resource
	       maxIters.

       --count integer
	       How many	"blots"	to draw	at a time. This	number may be  rounded
	       down to fit the particularly chosen model, and has a fixed min-
	       imum per-model.	Defaults to 250, resource count.

       --line-width integer
	       The  width  of  the  lines to draw. 0 means an optimized	pixel-
	       thick line.  Defaults to	0, resource lineWidth.

       --event-chance fraction
	       The chance, per iteration, for a	life-altering event  to	 occur
	       (such as	picking	a new rotation target),	in the range 0..1. De-
	       faults to 0.2, resource eventChance.

       --iter-amt fraction
	       The fraction of movement	towards	a target (such as rotation an-
	       gle  or	scale)	that happens per iteration, in the range 0..1.
	       Defaults	to 0.01, resource iterAmt.

       --nervousness fraction
	       How nervous the drawing is, in the  range  0..1.	 This  is  how
	       jumpy  the  points  on each blot	are. Defaults to 0.3, resource
	       nervousness.

       --max-nerve-radius fraction
	       The maximum radius of blot nervousness, as a  fraction  of  the
	       radius  of  the	blot,  in the range 0..1. Defaults to 0.7, re-
	       source maxNerveRadius.

       --min-radius integer
	       The minimum radius for a	blot, in the range 1..100. Defaults to
	       3, resource minRadius.

       --max-radius integer
	       The maximum radius for a	blot, in the range 1..100. Defaults to
	       25, resource maxRadius.

       --min-scale fraction
	       The minimum overall scale of drawing, as	a fraction of min(win-
	       dowHeight,windowWidth), in the range 0..10.  Defaults  to  0.6,
	       resource	minScale.

       --max-scale fraction
	       The maximum overall scale of drawing, as	a fraction of min(win-
	       dowHeight,windowWidth),	in  the	range 0..10. Defaults to 1.75,
	       resource	maxScale.

       --fps   Display the current frame rate and CPU load.

ENVIRONMENT
       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.

X RESOURCES
       There are resource equivalents for each option, noted above.

BUGS
       nerverot	should have more models.

       XDBE should be detected and used, if available.

SEE ALSO
       xscreensaver(1)

COPYRIGHT
       Copyright (C) 2000-2001 by Dan Bornstein. All rights reserved.

       Permission to use, copy,	modify,	distribute, and	sell this software and
       its  documentation  for any purpose is hereby granted without fee, pro-
       vided that the above copyright notice appear in	all  copies  and  that
       both  that  copyright  notice and this permission notice	appear in sup-
       porting documentation. No representations are made about	the  suitabil-
       ity  of	this  software for any purpose.	It is provided "as is" without
       express or implied warranty.

AUTHOR
       Dan Bornstein <danfuzz@milk.com>.

X Version 11		      6.09 (07-Jun-2024)		   nerverot(6)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=nerverot&sektion=6&manpath=FreeBSD+Ports+14.3.quarterly>

home | help