Light rays threading between two black holes, colored by which reach the object in the background.
Visualizes a fan of null geodesics threading between two extremally charged black holes in a Majumdar-Papapetrou spacetime. Each ray is integrated and rendered as a tube geometry colored by which black hole captured it or whether it escaped. Slider controls adjust the beam angle, spray rotation, mass ratio, ray count, and angular spread, demonstrating chaotic gravitational scattering.
Controls: Click and drag to orbit, scroll to zoom.
