This is a little-ish thing I built in processing that simulates a scanning ray style display. The rays are objects I built that can draw any shape handed to them, with each shape (at this point) being an array of points. For example, the square shape shown in the video is drawn from 4 xy-coordinates. The ray object parametrically draws between these points.
This piece is one of two that I built for a Kraftwerk tribute performance.