Show HN: 3D Conformal Transformations via Geometric Algebra

Inspired by this great talk by Hamish Todd about Conformal Geometric Algebra [1] I felt the urge to play with those conformal transformations myself and to learn more about geometric algebra.

In the original talk Hamish shows many interactive visualizations to make a point about properties of conformal transformations and their representation via Geometric Algebra.

My goal was to reverse engineer these visualizations just from the snippets shown in the talk.

I find the result very satisfying to play around with. [2] As educational tool it provides some good intuition for conformal transformations and their composition. I hope some of you might enjoy it as well, especially after watching the original talk by Hamish Todd.

On the technical side it is built on Threlte (Svelte+ThreeJS) and mostly handwritten with AI only being used for trying and debugging some shader code performance optimizations.

1: https://www.youtube.com/watch?v=q3as9SGmDdw 2: https://static.laszlokorte.de/conformal-3d/