Via Kottke on Mastodon.* Alex Harri wrote an image-to-ASCII renderer that can translate generated 3D models in realtime, and on this page they explain how it works and some of the finer points of that conversion, specifically how not to make the rendered images seem blurry, instead giving edges clean outlines. It’s worth a look even if you’re not a programmer, and just want to see how the process is done. While it does descend into pretty heavy math later on, it starts out pretty approachable, and has interactive demonstrations throughout.
* Bluesky has a lot more users, but Mastodon is used by a good number of highly interested and knowledgeable people, especially people who care about the health of the web, although that’s also because I follow a lot of people like that on Mastodon. Overall I find it a good idea to read both.
