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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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function u(t) {

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  • Experimenting a 'big' PI
  • u/Xen
    smol as i could get quickly: i=1n,p=t=3n*(10n**1020n);while(t)t=t*i/((i+1n)*4n),p+=t/(i+2n),i+=2n;throw p

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  • Dweet 7

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  • Não sei.
  • u/magna
    Very cute!
  • u/@noel
    u/magna Thank you. I use this actually as a sort of mindfulness training. Observing a tiny, tiny rectangle being born in the deep middle, trying to follow it, slowly moving and growing, until it reaches you, at its maximum size, fading totally right in front.

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  • Firework
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  • u/vain
    @noel:
  • u/vain
    @noel: i'm not really sure. But i think the best way to get it work same speed on all PCs it to use t (timer). Btw, the function u(t){your code} will be called 60 times per second. So using d-=4 should run same speed on all fast PCs - but slow down on older slower PCs.
  • u/vain
    Btw, it looks really cool with this green shining spikes.
  • u/joeytwiddle
    I like it, running fast or slow! Viewers can always add t/=2;

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  • The Cristal Ball.

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  • Remix of d/27866 Stereographic Projection
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  • u/danny@hille.dk
    Hi @Noel, When making a Dweet, think of best practice and do the opposite: only use variables when you need them, and wait until you need to use them the first time to initialize them. 194b, but I'm sure it can be golfed even further: for(g=x.createRadialGradient(d=950,b=540,0,d,b,e=420),g[a="addColorStop"](0,"#4BB"),(x.fillStyle=g)[a](1,"#005"),x.fillRect(e,0,h=1080,h),i=3e3;i--;)x.fillText("◻️",d+S(i+t)*S(i*i)*e,b+e*C(i*i))
  • u/danny@hille.dk
    Cool effect!
  • u/danny@hille.dk
    eval(unescape(escape\`󩭯󬬨󩼽󮌮󨽲󩝡󭍥󤭡󩍩󨝬󡽲󨝤󪝥󫭴󚍤󟜹󝜰󛍢󟜵󝌰󛌰󛍤󛍢󛍥󟜴󜬰󚜬󩽛󨜽󘭡󩍤󠽯󫍯󬭓󭍯󬌢󧜨󜌬󘬣󝍦󩬢󚜬󚍸󛭦󪝬󫍓󭍹󫍥󟝧󚝛󨝝󚌱󛌢󘼰󜌵󘬩󛍸󛭦󪝬󫍒󩝣󭌨󩜬󜌬󪌽󜜰󞌰󛍨󚜬󪜽󜽥󜼻󪜭󛜻󚝸󛭣󫍥󨝲󤭥󨽴󚍤󚽓󚍩󚽴󚜪󤼨󪜪󪜩󚭥󛍢󚽥󚭃󚍩󚭩󚜬󝜬󝜩\`.replace(/u../g,'')))
  • u/danny@hille.dk
    remove \

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  • The black Sun.

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function u(t) {

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  • Stereographic Projection
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  • u/KilledByAPixel
    fillStyle can be slow when called this often (60,000+ times per frame), you can make a faster/smaller version in grayscale by removing the fillStyle and doing this x.fillRect(i,j,1,(z&w)/w)
  • u/danny@hille.dk
    uncompressed using grayscale and some other golfing tricks ->c.width=w=255;for(m=4e4;m--;x.fillRect(i,j,((C(a=Math.atan2(y,k))*w/d+t*w^S(a)*w/d+t*w)&w)/w,1))i=m%w,j=m/w,d=Math.hypot(k=i/w-.5,y=j/w-.3)
  • u/danny@hille.dk
    Great first Dweet, by the way :-)
  • u/@noel
    u/danny@hille.dk Thank you. Your solution is really nice. I am playing right now with it.

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