NAME
nerverot - induces edginess in the viewer
SYNOPSIS
nerverot [-display
host:display.screen] [-foreground color] [-background
color] [-window] [-root] [-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]
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.
- -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.
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.
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>.