Uploaded March 2020 | Updated September 2026, 3 weeks ago
I have started implementing a three-dimensional animation which puts "snowballs" randomly in a three-dimensional space. Launched it on the hyperbolic plane by mistake, and got this.
I have started implementing a three-dimensional animation which puts "snowballs" randomly in a three-dimensional space. Launched it on the hyperbolic plane by mistake, and got this.


![Bad Apple, but rendered with hyperbolic planes
Our take on the famous Internet meme! If something can display something, it will display Bad Apple. If it cant, people will make it display Bad Apple. LiterallySomeOne, [2]
By the Riemann Mapping Theorem, every simple-connected shape can be conformally mapped to a hyperbolic plane, and thus be used as a model* of hyperbolic geometry.
Made with newconformist: https://github.com/zenorogue/newconformist (modified to allow animation)
Want to know more? Follow us and comment for a making of video! [3]
[1] original Bad Apple animation by Anira (uploaded to YouTube by kasidid2): https://www.youtube.com/watch?v=FtutLA63Cp8
[2] Bad Apple explained by Megapig9001: https://www.youtube.com/watch?v=6QY4ekac1_Q
[3] The making of video is ready! https://youtu.be/NGixk6jVVNM
* rather a projection than a model... but people call them models, so lets call these anime-girl models
Download video without YouTube compression: (also fixes the missing frames at 0:41 and at the end, causing music desync)
https://drive.google.com/file/d/1TqZo1AyeU7a4N9zcr32bIzVxT0vUNwxo/view?usp=sharing
#badapple #mathart #noneuclidean #mindbending #visualization #mathisbeautiful #mathgenius #mathisfun #mathisawesome #newconformist #conformal #hyperrogue #rogueviz Bad Apple, but rendered with hyperbolic planes](https://i.ytimg.com/vi/P9EZy8ZzlVU/mqdefault.jpg)







