Top #fractal 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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katkip

function u(t) {

t||x.translate(960,540);x.fillRect(0,0,299,99);x.rotate(Math.PI*2/5),x.drawImage(c,0,0,499,300)

May 15 2019 1:16 PM UTC

}// 95/140

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#fractal star pentagon

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rodrigo.siqueira

remix of d/13592 by u/rodrigo.siqueira

function u(t) {

x.beginPath(x.globalAlpha=.14)
if(t<188.49)for(i=9,j=.1,X=960,k=Y=580;k/=2,i--;j*=-4)X+=S(f=t*(j+.5)/3)*k,Y-=C(f)*k,x.lineTo(X,Y);x.stroke()

May 2 2019 1:33 PM UTC

}// 140/140

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Super folded pentagon #epicycles #fractal #spirograph - slow but high quality

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vinca

remix of d/13568 by u/vinca

function u(t) {

eval(unescape(escape`景爨瑼簨夽〩ⱷ㴲攳ⱨ㴱攳ⱘ㵷㭘ⴭ㬩筦潲⡮㵲㵩㴰㭮㰳〦♲⩲⭩⩩㰴㭮⬫⥲㴨爪爩⨪⸵Ⱪ㴨椪椩⨪⸵ⱛ爬楝㵛爪爭椪椫⡘ⴲ㥥㌩⽷⼸ⰲ⩲⩩⬨夭㜰〩⽨⼸崻砮晩汬却祬攽刨㘪測㤩ⱸ⹦楬汒散琨堬夬ㄬ㔩絙⬽㔻`.replace(/u(..)/g,"$1%")))

May 2 2019 2:41 AM UTC

}// 140/140

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u/13thptr

nice #burningship #fractal

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rodrigo.siqueira

remix of d/13523 by u/Jezza

function u(t) {

x.globalAlpha=.3;x.beginPath()
if(t<63)for(i=9,j=.1,X=960,k=Y=540;k/=2,i--;j*=-9)
X+=C(f=t*j*2)*k,
Y+=S(f)*k,
x.lineTo(X,Y)
x.stroke()

May 1 2019 3:07 PM UTC

}// 134/140

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Tenfold #epicycles #fractal #spirograph

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pavel

function u(t) {

eval(unescape(escape`𩠽𚁡𛁢𛁥𛁧𛁨𛁩𛁤𛁪🐨𨐫𩐫𪀩𛰳𛁫🐨𨠫𩰫𪐩𛰳𚐽🡤𛐭𙠦𩠨𨐬𨠬𩐬𩰬𪠬𪰬𩀩𯁦𚁨𛁩𛁡𛁢𛁪𛁫𛁤𚑼𩠨𩐬𩰬𪀬𪐬𪠬𪰬𩀩𯁸𛡬𪑮𩑔𫰨𞐶𜀫𬠪𨐬𬠫𬠪𨠩𒡣𛡷𪑤𭁨𯀽𬠽𝐴𜀊𩠨𠰨𭀩𛁓𚁴𚐬𠰨𭀫🐲𛠱𚐬𤰨𭀩𛁃𚁴𚰽𜠮𜐩𛁓𚁴𚐬𞀩𒡸𛡳𭁲𫱫𩐨𚐻`.replace(/u../g,'')))

Apr 23 2019 7:15 PM UTC

}// 140/140

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Couldn't get a static version down to 140 so added motion and used d/11852

u/katkip

Centroid #fractal <3
u/Xen

love it!!!!!

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katkip

remix of d/13409 by u/katkip

function u(t) {

x.translate(960,440);x.font='4cm"';x.fillText(".",0,0)
x.rotate(Math.PI*2/3)
x.drawImage(c,0,650,960,1337)

Apr 23 2019 2:28 PM UTC

}// 106/140

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#fractal

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katkip

remix of d/13402 by u/katkip

function u(t) {

x.translate(960,440);x.font='4cm"';x.fillText("KATKIP",400,600)
x.rotate(Math.PI*2/6)
x.drawImage(c,390,300,900,1010)

Apr 23 2019 2:09 PM UTC

}// 117/140

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#fractal s are easy

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pavel

remix of d/12331 by u/pavel

function u(t) {

for(j=t?2e3:a=b=0;j--;x.fillRect(960+450*a,540+450*b,1,1))s=(j**t&2)-1,A=(Math.hypot(a+=.123,b+=.745)+a)/2,b=(b<0?-s:s)*(A-a)**.5,a=s*A**.5

Feb 15 2019 12:02 AM UTC

}// 139/140

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Douady's rabbit #fractal #attractor

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katkip

function u(t) {

s=50;x.fillRect(960-250,540-250,500,500),x.drawImage(c,960,540,s*16*(C(t*s)<.5?-1:1),s*9*(S(t*s)<.5?-1:1))

Feb 10 2019 1:56 PM UTC

}// 106/140

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Not recursive #fractal

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joeytwiddle

function u(t) {

c.width|=p=(X,Y,W,I,H=W/2)=>H>2?(p(X,Y,H,I*=Math.random()**.2),p(X+H,Y,H,I),p(X,Y+H,H,I),p(X+H,Y+H,H,I)):x.fillRect(X,Y,I,I),p(0,0,R=1024,9)

Jan 9 2019 3:15 PM UTC

}// 140/140

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a sort of rough #recursive #plasma #fractal

u/joeytwiddle

Ideally we would keep the edges smooth, by holding an intensity for each corner instead of the entire square
u/joeytwiddle

W=width, H=half width, I=intensity, p=plot/plasma/partition
u/joeytwiddle

p calls p four times for each sub-square, with a randomly smaller I

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