d/9704 by katkip

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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katkip

function u(t) {

a=.2*t|0,b=t|0;c.width^=0;x.translate(960,540);for(τ=0;τ<2e3;τ++)x.rotate(t/900),x.fillRect(S(τ*a)*900,C(τ*b)*500,1,3e3)

Sep 7 2018 7:06 PM UTC

}// 120/140

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u/donbright

this looks absolutely wild on my machine. fascinating way to draw line patterns. especially after a minute or two when it 'breaks' into what looks like orbiting string-drawing
u/katkip

yep


      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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