Light rays threading between two black holes, colored by which reach the object in the background.
Displays a spray of null geodesics passing through the field of two extremally charged black holes in a Majumdar-Papapetrou spacetime. Interactive controls allow adjusting the position, beam angle, mass ratio between the two holes, number of rays, and spray width. The tube-geometry trajectories are colored by capture fate, revealing the fractal-like scattering boundary between the two horizons.
Controls: Click and drag to orbit, scroll to zoom.
