NAME

       nerverot - induces edginess in the viewer

SYNOPSIS

       nerverot   [--display   host:display.screen]  [--foreground  color]  [--background  color]
       [--window] [--root] [--window-id  number][--mono]  [--install]  [--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 integer] [--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 describes 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, resource 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 random 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 minimum 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. Defaults to 0.2, resource eventChance.

       --iter-amt fraction
               The fraction of movement towards a target (such as rotation angle 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, resource 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(windowHeight,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(windowHeight,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 © 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, provided that the above copyright notice
       appear in all copies and that both that copyright notice and this permission notice appear
       in  supporting  documentation.  No  representations are made about the suitability of this
       software for any purpose. It is provided "as is" without express or implied warranty.

AUTHOR

       Dan Bornstein <danfuzz@milk.com>.