Show HN: M. C. Escher spiral in WebGL inspired by 3Blue1Brown (static.laszlokorte.de)

The project is a WebGL shader demo that generates an “Escher spiral” effect from a standard image by applying a droste-style recursive rendering and using coordinate transforms. It converts the image mapping from Cartesian to polar space, rotates/scales there to unwrap and smoothly connect the recursive instances, then transforms back to produce a spiraling inward pattern.