Provided by: xscreensaver-gl_5.36-1ubuntu1_amd64 
NAME
jigglypuff - save your screen by tormenting your eyes.
SYNOPSIS
jigglypuff [-display host:display.screen] [-visual visual] [-window] [-root] [-delay number] [-cycles
number] [-wireframe] [-fps] [-color colorspec] [-spooky] [-complexity n] [-speed n] [-spherism n] [-hold
n] [-distance n] [-damping n]
DESCRIPTION
This draws all manners of obscene, spastic, puffy, vaguely ball-shaped objects orbiting lazily about the
screen, with a dizzying array of mostly pointless options.
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.).
-wireframe
Render in wireframe instead of solid. Default: render solid.
-fps Display the current frame rate, CPU load, and polygon count.
-tetra | -no-tetra
Whether to start the shape in the form of a tetrahedron. The default is to start as a sphere.
-color colorspec
Available options for colorspec are: cycle, flowerbox, clownpuke, chrome and #xxxxxx (i.e an
(old-style) X color specification.) Default: cycle
-spooky n
This option controls a kind of interesting effect obtained by using unnormalized normal vectors
(how's that for an oxymoron?) in OpenGL. A value of zero disables the effect. Other values vary
the lengths of the normals proportionally. Okay, so it's not very spooky. Sue me. Default: 0
-complexity n
Valid options are 1, 2, and 3. Everything else is treated as though it were 2, which is the
default. This controls the number of polygons in the 'thing'. A value of 1 yields 1024, and the
values go up in powers of 4. (i.e. 4096, 16384.)
note: There is an inherent lack of stability at lower complexity, which can cause the shape to
devolve into a 'flying snotrag'.
-speed n
Controls how fast the blob moves around the screen. Default: 500.
-spherism, -hold, -distance, -damping
These options control the 'jigglyness'. The best way to explain these is to explain how
jigglypuff works. Basically, the shape is a tetrahedron whose faces are subdivided into a number
of triangles, forming a mesh. Each of the vertices of the mesh has two different forces applied
to it: one proportional to its distance from the surface of a sphere, and one proportional to the
difference of the distance to each of its neighbors in the mesh to a given ideal distance. In
short, one tries to move the points into the configuration of a sphere, and the other tries to
push them back into a tetrahedron. The catch is that the points have inertia, so they always
overshoot their target, and hence they oscillate. The magnitudes of the two forces is controlled
by the options 'spherism' and ´hold'; 'distance' specifies the distance the vertices seek to keep
from their neighbors, with 500 corresponding to the size of the start tetrahedron. e.g. if you
were to give the options '-tetra -spherism 0 -distance 500', you would end up with a stable
tetrahedron. The 'damping' option can help to keep the blob from collapsing or flying apart. The
option specifies the speed at which damping starts, hence lower values mean more damping.
Defaults: spherism: 75; hold: 800; distance: 100; damping: 500.
-random Probably the only parameter you'l ever need. Overrides almost all of the parameters with random
values. The values affected are: speed, spherism, hold, distance, damping, spooky, color,
wireframe and tetra. Default: off
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)
COPYRIGHT
Copyright © 2003 by Keith Macleod. 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
By Keith Macleod