More playing with the equation. I'm rea… by KilledByAPixel

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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

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KilledByAPixel

remix of d/13209 by u/KilledByAPixel

function u(t) {

for(i=99;i--;)N=255*(S(3.14*i+2*t)),Y=520*S(t+i),X=940*S(i+3*t),x.fillStyle=R(N,N,N),x.beginPath(),x.fillRect(940+X,520+Y,40,40)

Apr 12 2019 4:48 PM UTC

}// 128/140

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More playing with the equation. I'm really liking what it can do without the background clear.


      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)

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