note: when `Z` is negative, the thing i… by cantelope

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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cantelope

remix of d/34248 by u/rodrigo.siqueira

function u(t) {

for(x.fillRect(0,0,i=1e4,i);i--;x.clearRect(960+S(l+=t)/S(q=i%2<.5?n:4-n)/(Z=C(l)/S(q)+2)*(h=540),h+C(q)/Z*h,s=Z>0?4+6/Z:0,s))n=(l=i**.9)%2

Aug 29 2025 5:34 PM UTC

}// 139/140

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note: when Z is negative, the thing is behind the 'camera' and should be omitted, unless you're doing a 360° equirectangular thing... this remix omits the rear activity which would appear as particles going in the wrong direction


      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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