A bunch of discipled particles marching through a force field. Takes as source of inspiration Marius Watz's 'Grid Distortion'.
Keys '1' and '2' to reset the drawing, using limits or not (default '1', limits on).
Click to halt the loop.
Inside there's another displaying method, using shapes instead of points.
To tweak this sketch, first download it.
Make your updates, then upload your tweak!