This seems to be the article's author's own language Bauble[1], "a toy for composing signed distance functions in a high-level language (Janet), compiling them

This seems to be the article's author's own language Bauble[1], "a toy for composing signed distance functions in a high-level language (Janet), compiling them to GLSL, and rendering them via WebGL"[2]. [1]: https://ianthehenry.com/posts/bauble/building-bauble/ https://ianthehenry.com/posts/bauble/building-bauble/ [2]: https://github.com/ianthehenry/bauble https://github.com/ianthehenry/bauble