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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.
Theme challenge of the month: #castle
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  • u/tomxor
    Finally resorted to UTF8. This is a reasonably accurate slow motion aperture grille scanline animation... Although if run very slow you will see it's not simulating 3 electron beams. t=fps (scanline) w=width (subpixels) the later must be a multiple of 3 and 5. Use X, Y and floored F to plugin your own fractal!
  • u/tomxor
    Uncompressed: w=90,i=l=w*w/5,t=1+t*t/12; for(x.fillRect(0,0,c.width=w*2,w*2);i--;x.fillRect(X*6,Y*6,1+K,5)) X=i%w/3,Y=i/w|0,F=t-i/l,K=1-F%1,K*=(Y^X-~F)/27%1+K**8, x.fillStyle=hsl(${i*120},99%,${K*99}%)
  • u/sigveseb
    Kick-ass!
  • u/C010011012
    bypassing the character limit I see using unicode escapements and regex u r very clever

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function u(t) {

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remix of d/12230 by u/pavel

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  • I like how the corners are "walking"

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function u(t) {

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  • A little remix of yokljo's city river
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  • u/username
    What is this supposed to be? I only see black squiggly lines..
  • u/joeytwiddle
    I think it's supposed to be buildings reflect in water. for(c.width|=j=20+t|0;j-->t;)for(g=(j-t)*120,i=W=99;i--;)x.fillRect(i?g+i*i/70*S(1e3/i-t*8+j**3):g,500+!!i*i*4,-W-80*S(j*j),i?3:-300-W*S(j))
  • u/donbright
    oh my god
  • u/joeytwiddle
    Please give u/yokljo an upvote. I only tweaked their idea! #water #waves

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  • for(w=960,x[f='fillRect'](0,0,i=(c.width|=0),i);i--;x[f](w+(S(b)*3+S(p=i*i+t)*S(q=i*i*i))/(Z=6+C(b)*3+C(p)*S(q))*w,540+(C(q)-C(b+t))/Z*w,s=1+150/Z/Z,s))x.fillStyle=hsl(${(b=i%6+t)*60},99%,65%

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  • 3x5 pixel alphabet, each letter encoded in 15 bits

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remix of d/11919 by u/mxfh

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  • u/f8f82804
    d/11931
  • u/pavel
    Omitting the space in 99%50% does not work in Safari, everything is black.
  • u/f8f82804
    yeah safari stinks
  • u/f8f82804
    try "for(c.width|=i=384;i--;x.fillRect(960-w/2+e,4*i,w+e,4))y=i/80-2,w=y>.7?3e3:(1-y*y)**.5*640,e=T(t/9+i*w),x.fillStyle=hsl(${-y}rad 99% 50%)" which should work and is still <140
  • u/bekfast2390
    easrdfghj

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remix of d/2442 by u/mxfh

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  • u/Xen
    NICE! :-)
  • u/katkip
    Haha
  • u/magna
    #glitch
  • u/mxfh
    this one doesn’t even need the fillrule. Was just looking into other cycloids and Lissajous figures, only to end up with a circle.

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