Black Hole Simulation Lab

GR-exact Schwarzschild null-geodesic ray tracer — gravitationally lensed accretion-disk renders

Lensed thin accretion disk, 80° inclination — far side bent over the shadow
Lensed accretion disk, 20° inclination
Kerr disk a=0.9, 78° — relativistic Doppler beaming asymmetry
Kerr shadow a=0.99, 80°
Shadow and photon ring