9 points
The second one. The image is simulated as how an external observer would see it. It was firstly done for the Interstellar movie.
3 points
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4 points
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The first simulated images were actually computed decades ago, but I think Interstellar had the most detailed simulation by a high margin
https://www.cnrs.fr/en/press/first-ever-image-black-hole-cnrs-researcher-had-simulated-it-early-1979
Interstellar spent 100 hours of mainframe compute time per frame to simulate a black hole
1 point
