Provided by: xscreensaver-gl_5.36-1ubuntu1_amd64 
NAME
hydrostat - Wiggly squid or jellyfish with many tentacles.
SYNOPSIS
hydrostat [-display host:display.screen] [-visual visual] [-window] [-root] [-delay number] [-speed
number] [-count number] [-head-radius number] [-tentacles number] [-thickness number] [-length number]
[-gravity number] [-current number] [-friction number] [-no-pulse] [-wireframe] [-fps]
DESCRIPTION
Wiggly squid or jellyfish with many tentacles. A muscular hydrostat is a biological structure used to
move its host about, consisting of muscles with no skeletal support. It performs its hydraulic movement
without fluid in a separate compartment, as in a hydrostatic skeleton.
OPTIONS
-visual visual
Specify which visual to use. Legal values are the name of a visual class, or the id number
(decimal or hex) of a specific visual.
-window Draw on a newly-created window. This is the default.
-root Draw on the root window.
-delay number
Per-frame delay, in microseconds. Default: 20000 (0.02 seconds).
-speed number
Animation speed. 2.0 means twice as fast, 0.5 means half as fast.
-count number
Number of squid. 1 - 100. Default: 10.
-head-radius number
Head size. 10 - 100. Default: 60.
-tentacles number
Number of tentacles. 3 - 100. Default: 40.
-thickness number
Thickness of tentacles. 3 - 40. Default: 18.
-length number
Length of tentacles. 10 - 150. Default: 70.
-gravity number
Strength of gravity. 0 - 10.0. Default: 0.5.
-current number
Strength of current. 0.0 - 10.0. Default: 0.25.
-friction number
Coefficient of friction. 0.0 - 0.1. Default: 0.02.
-pulse | -no-pulse
Whether the squid should pulse. Default true.
-wireframe | -no-wireframe
Render in wireframe instead of solid.
-fps | -no-fps
Whether to show a frames-per-second display at the bottom of the screen.
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.
SEE ALSO
X(1), xscreensaver(1) http://soulwire.co.uk/experiments/muscular-hydrostats/
COPYRIGHT
Copyright © 2016 by Justin Windle and Jamie Zawinski. 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
Justin Windle and Jamie Zawinski.