Visualizes a bundle of null geodesics deflected by three extremally charged black holes arranged in a triangular configuration in a Majumdar-Papapetrou spacetime. The geodesic equations for the conformally flat metric are integrated with a symplectic method, and each trajectory is rendered as a tube geometry. Rays are colored by which black hole captured them or a default color if they escape.
Controls: Click and drag to orbit, scroll to zoom.