spinning colorful torus in 3d... by BirdsTweetCodersDweet

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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BirdsTweetCodersDweet

function u(t) {

with(x)for(c.width=a=2e3;a-=4;beginPath(stroke()))strokeStyle=`hsl(${d=C(a)*70},99%,50%`,ellipse(960+200*C(a+t*3),480+d*4,90+d/3,90+d,0,0,7)

Feb 3 2018 3:39 PM UTC

}// 140/140

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spinning colorful torus in 3d...

u/BirdsTweetCodersDweet

credit to u/joeytwiddle and u/veubeke
u/BirdsTweetCodersDweet

a longer, but better version: with(x)for(c.width|=a=1e3;a--;beginPath(stroke()))b=255,d=C(a)*10,strokeStyle=R(b*S(a)+b,25*d+b,100+d,.5),ellipse(960+200*C(a+t*3),540+200*S(a),90+30*S(a),90+d*3,0,0,7)
u/magna

So pretty!


      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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