jigglypuff



XScreenSaver(1)                                                XScreenSaver(1)




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  sec-
               onds.).

       -wireframe
               Render in wireframe instead of solid. Default: render solid.

       -fps | -no-fps
               Display frames per second. Default: off.

       -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,  clown-
               puke, chrome and #xxxxxx (i.e an (old-style) X color specifica-
               tion.) 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 num-
               ber 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 complex-
               ity, which can cause the shape to devolve into a  ’flying  sno-
               trag’.

       -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 con-
               trolled by the options ’spherism’ and ´hold’; ’distance’ speci-
               fies  the  distance the vertices seek to keep from their neigh-
               bors, with 500 corresponding to the size of the start  tetrahe-
               dron.  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: 200; 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 pur-
       pose 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  repre-
       sentations are made about the suitability of this software for any pur-
       pose.  It is provided "as is" without express or implied warranty.


AUTHOR

       By Keith Macleod



X Version 11                                                   XScreenSaver(1)

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