Same black hole always in front
This is lovely. Thank you!
Using it here: https://labcit.ligo.caltech.edu/~jkanner/aapt/web/lesson.html
A colleague pointed out that the same black hole always seems to pass in front, which breaks the illusion that they are moving in-and-out of the screen.
Also, I had trouble making mp4's on my mac. The gif's worked great. I suspect I'm missing a library, but I don't know which one. Would help to add a list of requirements, even if incomplete.