XY oscilloscope · 3d retro graphics

{"slug":"scope","number":"20","title":"XY oscilloscope","era":"Vector CRT · 1970s","summary":"A Lissajous figure with phosphor persistence. Pointer changes the ratio.","description":"X is one sine, Y is another. That is the XY mode on a scope, and the picture is a Lissajous curve. Persistence is a cheap canvas fade. Move the pointer to detune the Y frequency. Ratio is the second harmonic.","apis":["Canvas 2D","Pointer Events","requestAnimationFrame","matchMedia"],"tags":["vector","crt"],"hasGlsl":false,"interaction":"Move the pointer left or right to change the frequency ratio.","url":"https://3d-retro.com/experiments/scope","example_url":"https://3d-retro.com/examples/scope.html","api_url":"https://3d-retro.com/api/v1/experiments/scope","html":"\n\n\n \n \n \n \n XY oscilloscope · 3d retro graphics\n \n\n\n

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