function u(t){


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  • Xen: -70Byte-Refix-
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  • Xen: another 4 bytes can be shaved but it will take longer to draw ;-)
  • kchplr: 62 bytes, same speed : x.fillText(x.drawImage(c,(V=t*9%3|0)*480,V%2*540,960,540),9,9)
  • kchplr: 62 bytes and faster, but less interesting fade in: x.fillText(x.drawImage(c,(V=frame%3)*480,V%2*540,960,540),9,9)

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u(t) is called 60 times per second. t: elapsed time in seconds. c: A 1920x1080 canvas. x: A 2D context for that canvas. S: Math.sin C: Math.cos T: Math.tan R: Generates rgba-strings, ex.: R(255, 255, 255, 0.5)