Provided by: xscreensaver-data-extra_5.04-4ubuntu1_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]


       The  Intersection  Momentary  is  a  fun  visualization  defining   the
       relationships 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
       intersection 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.


       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 property.


       Setting the background to anything besides black confuses the intensity
               algorithm and will look terrible.


       X(1), xscreensaver(1)


       Copyright  ©  2003   by   J.   Tarbell   (,

       Ported      to      XScreensaver      2004      by     Mike     Kershaw


       J. Tarbell <>, Jun-03

       Mike Kershaw <>, Oct-04