nerverot(6) XScreenSaver manual nerverot(6)
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 (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,
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>.
X Version 11 6.09 (07-Jun-2024) nerverot(6)