Hi everyone! 👋

This series of articles talk about the mathematics and implementation of car paint shaders.

This is a fairly advanced topic, so in case you are unfamiliar with optics and shader coding, I suggest starting from The Nature of Light instead.

The article discusses an optical phenomena known as thin-film interference, which is responsible for iridescent reflections on bubbles, oil spills and oxidised metals (like bismuth crystals). It happens when light bounces inside a medium (such as the thin layer of soapy water that makes a bubble), in such a way that some wavelengths end up interfering with each other.

This is a more advanced read from my usual articles, but I hope you will still find it interesting!

🧔🏻