New #Sierpinski dweets

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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geb

remix of d/12933 by u/vinca

function u(t) {

for(i=3e3,t*=99;i--;)x.fillRect(t|i,t,1,1)

Mar 30 2019 3:14 PM UTC

}// 42/140

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u/DataMeta

This must be nearly the shortest dweet
u/Xen

nice find geb, check 2923 datameta, altho xem and others have done smaller ;)
u/katkip

Wow!
u/geb

better tag them from now on #Sierpinski
u/pavel

Basically the same thing but in 40: for(i=3e3,t*=99;i--;)x.fillText(1,t|i,t)
u/Xen

37 but not as good: for(t*=i=1e3;i--;)x.fillText(i,t|i,t)

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pavel

function u(t) {

for(j=30;j--;x.fillText(0,350*a,500*b))r=Math.random()*3|0,a=t&&a/2+r,b=t&&b/2+r%2

Feb 13 2019 10:58 PM UTC

}// 82/140

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Random #sierpinski via IFS

u/geb

IFS ?
u/pavel

iterated function system

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katkip

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁞🐰𞱦🐨𦀬𦐬𬰬𮠽𬰯𚀴𚱃𚁴𚐩𚐽🡻𪑦𚁳🠲𚑸𛡦𪑬𫁒𩑣𭀨𦀭𬰯𜠬𦐭𬰯𜠬𬰬𬰩𛁦𚁘𛑳𛁙𛁺𚐬𩠨𦀬𦐭𬰬𮠩𛁦𚁘𛁙𚱳𛁺𚐬𩠨𦀫𬰬𦐬𮠩𛁦𚁘𚱳𛁙𚱳𛁺𚐬𩠨𦀭𬰬𦐫𬰬𮠩𛁦𚁘𛑳𛁙𛑳𛁺𚐬𩠨𦀫𬰬𦐭𬰬𮠩𯐻𩠨𞐶𜀬𝐴𜀬𜰰𜀩`.replace(/u../g,'')))

Feb 10 2019 1:47 PM UTC

}// 134/140

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#sierpinski carpet but #compressed

u/cantelope

You say "but" like compressed is a bad thing :P cool dweet!

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katkip

function u(t) {

eval(unescape(escape`挮睩摴桞㴰㭲㴨堬夬猩㴾筩昨猾㈩砮晩汬剥捴⡘ⱙⱳ⨲ⱳ⨲⤬爨堭猬夭猬猯㈩Ⱳ⡘⵳ⱙ⭳ⱳ⼲⤬爨堫猬夭猬猯㈩Ⱳ⡘⭳ⱙ⭳ⱳ⼲⥽㭸⹧汯扡汁汰桡㴮㔫䌨琪㈩⨮㌬爨㤶〬㔴〫䌨琩⨴㈰ⰴ㠰⤻`.replace(/u(..)/g,"$1%")))

Dec 31 2018 12:15 PM UTC

}// 131/140

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#infinite #sierpinski #recursion #layers #levels #grayscale #fractal #recursive

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katkip

remix of d/11588 by u/katkip

function u(t) {

c.width|=f=(X,Y,d=700+t*80,a=C(d)*500,b=d/2)=>{if(d>20)x.fillRect(X-b,Y-b,d,d),f(X-b,Y,b),f(X,Y-b,b),f(X+b,Y,b)};x.globalAlpha=.2,f(960,800)

Dec 30 2018 1:37 PM UTC

}// 140/140

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#sierpinski using alpha

u/katkip

#fractal, #recursive

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katkip

remix of d/11584 by u/katkip

function u(t) {

eval(unescape(escape`挮睩摴桞㴰㭦㴨愬戬挩㴾筩昨挾㌩砮晩汬剥捴⡡ⱢⱣⱣ⤬昨愭挪䌨琩Ɫⵣ⩓⡴⤬振㈬振㈩ⱦ⡡⭣⼲⩃⡴⤬戫挪匨琩Ᵽ⼲Ᵽ⼲⤬昨愭振㈪匨琩Ɫⵣ⼲⩃⡴⤬振㈬振㈩ⱦ⡡⭣Ɫⵣ⼲Ᵽ⼲Ᵽ⼲⥽㭦⠸㐰ⰵ㤰ⰲ㔰⤻`.replace(/u(..)/g,"$1%")))

Dec 30 2018 9:57 AM UTC

}// 138/140

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I love #recursion , #recursive #sierpinski #d3 c.width^=0;f=(a,b,c)=>{if(c>3)x.fillRect(a,b,c,c),f(a-c*C(t),b-c*S(t),c/2,c/2),f(a+c/2*C(t),b+c*S(t),c/2,c/2),f(a-c/2*S(t),b-c/2*C(t),c/2,c/2),f(a+c,b-c/2,c/2,c/2)};f(840,590,250)

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katkip

remix of d/11581 by u/katkip

function u(t) {

eval(unescape(escape`挮睩摴桞㴰㭺㴨堬夬猩㴾筩昨猾㄰⥸⹦楬汒散琨堭猬夬猪㈬猯䌨琩⤬砮晩汬剥捴⡘ⱙ⵳ⱳ⼱〬猪㤩ⱺ⡘⵳ⱙⱳ⼲⤬稨堬夭猬猯㈩ⱺ⡘ⱙ⭳ⱳ⼲⤬稨堫猬夬猯㈩紻稨㤶〬㔴〬㈸〫䌨琪㈩⨲〩`.replace(/u(..)/g,"$1%")))

Dec 30 2018 9:35 AM UTC

}// 130/140

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Floating island of #fractal s #sierpinski

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katkip

function u(t) {

c.width*=1;for(i=40;i--;)for(j=40;j--;)x.beginPath(),x.ellipse(i*50,j*26,26,0,t*9+(i&j),0,7),x.stroke();

Dec 9 2018 12:49 PM UTC

}// 104/140

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Can you see the #sierpinski?

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katkip

function u(t) {

t||(a=-1,b=0);for(p=50;p--;)x.fillStyle=`hsl(${(a|b)**2+frame*999} 99%${50+T(a|b)*20}%)`,x.fillRect(a*10,b*10,10,10),a++,a>192?(b++,a=-1):0;

Dec 1 2018 1:44 PM UTC

}// 140/140

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#sierpinski #epilepsy

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pavel

function u(t) {

for(c.width|=i=100;i--;)
for(j=50;j--;)
s=20*S((i|j)-t/2)**20,  // Then a miracle occurs
x.fillRect(10+20*i-s/2,10+20*j-s/2,s,s)

Oct 31 2018 3:37 AM UTC

}// 128/140

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#sierpinski

u/joeytwiddle

Transient overlapping Sierpinskis. Lovely.

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