A black hole you can orbit
Illustrative only — simple Schwarzschild estimate (√(1 − Rs/r)). Real spinning-black-hole math is wilder.
Every pixel is bent live. A ray-marching shader curves each light ray around the mass — that's what arcs the disk over and under the shadow, smears the starfield into an Einstein ring, and thins into the photon ring. No footage, no image file.
Drag to orbit. Leave it alone and it drifts on its own. The bright side of the disk is doppler beaming — gas racing toward you at half the speed of light, brighter and hotter.
The time-dilation readout is a toy Schwarzschild estimate for fun, not navigation.
Bending light