Sound creeping around the inside of a dome by grazing reflection, so a whisper at one wall arrives at the far side and nowhere between — the modes Rayleigh worked out under St Paul's, now the reason a microresonator can trap light for a million round trips; the mode number follows the spectrum.
Drawn with: a WebGL2 shader.
Reacts to and looks like: gpu, webgl2 and audio-reactive.
Family: Visualiser.
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