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nerverot(6) |
XScreenSaver manual |
nerverot(6) |
nerverot - induces edginess in the viewer
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] [-fps]
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.
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.
- -fps
- Display the current frame rate and CPU load.
- 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.
There are resource equivalents for each option, noted above.
nerverot should have more models.
- XDBE should be detected and used, if available.
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.
Dan Bornstein <danfuzz@milk.com>.
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