Provided by: xscreensaver-data-extra_5.08-0ubuntu3_i386 bug


        intermomentary  -  Visualize  the momentary and aggregate intersections
        between slowly moving circles.


        intermomentary  [-display  host:display.screen]   [-foreground   color]
        [-background  color]  [-num-discs  disc  count]  [-draw-delay  delayms]
        [-max-riders maxr] [-max-radius maxradius] [-fps]


        The Intersection Momentary is a fun visualization  defining  the  rela-
        tionships  between  objects  with  Casey Reas, William Ngan, and Robert
        Hodgin. Commissioned for display at the Whitney Museum of American Art.
        A  surface  filled  with 100 medium to small sized circles. Each circle
        has a different size and direction, but moves at the  same  slow  rate.
            A. The instantaneous intersections of the circles.
            B. The aggregate intersections of the circles.
        The  circles begin with a radius of 1 pixel and slowly increase to some
        arbitrary size.  Circles are drawn with small moving points  along  the
        perimeter.  The  intersections  are  rendered as glowing orbs.  Glowing
        orbs are rendered only when a perimeter point moves past the  intersec-
        tion point.
        Ported  to  XScreensaver  from  the  art  project  "InterMomentary"  at by J.Tarbell


        intermomentary accepts the following options:
        -num-discs disc count (Default: 85)
                Number of slowly moving and growing discs  to  use.   The  more
                discs, the more CPU power.
        -draw-delay delayms (Default: 30000)
                Delay  in  ms  between drawing cycles.  More delay, slower (but
                smoother and less CPU intensive.)  art.
        -max-riders maxrider (Default: 40)
                Maximum number of 'riders', single dots moving around the  edge
                of the discs.
        -max-radius maxradius (Default: 100)
                Maximum possible radius of a disc.
        -fps    Display the current frame rate and CPU load.


        DISPLAY to get the default host and display number.
                to  get  the  name of a resource file that overrides the
                global resources stored in  the  RESOURCE_MANAGER  prop-
        Setting  the  background  to anything besides black confuses the
                algorithm and will look terrible.
        X(1), xscreensaver(1)


        Copyright  (C) 2003 by J. Tarbell (,
        Ported to XScreensaver 2004 by Mike Kershaw (dragorn@kismetwire-


        J. Tarbell <>, Jun-03
        Mike Kershaw <>, Oct-04