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||(q=0);f=(X,Y,s,A)=>{if(s>0.001)f(X+S(A)*s,N=Y+C(A)*s,s/2,A*4);else x.fillRect(X,Y,1,1)};for(i=399;i--;)f(960,540,270,q+=4/1e5)

Dec 13 2019 6:19 PM UTC

}// 129/140

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a very beautiful #fractal #spirograph #curve #recursion #recursive

u/katkip

benice's equation

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katkip

remix of d/15558 by u/katkip

function u(t) {

eval(unescape(escape`𪑦𚀡𭀩𮱘👙🐰𞱰👛𧐻𩡯𬠨𪐽𝐻𪐭𛐻𚑰𛡰𭑳𪀨𦰹𝠰𚱓𚁑🐶𛠲𞀯𝐪𪐩𚠴𜀰𛀵𝀰𚱃𚁑𚐪𝀰𜁝𚑽𞱦𫱲𚁩🐹𞐹𞱩𛐭𞰩𮀮𩡩𫁬𤡥𨱴𚁘𚠱𛠵𛁙𚠱𛠵𛀲𛀲𚐬𦀽𚁘𚱰𦰨𬠽𣑡𭁨𛡦𫁯𫱲𚁍𨑴𪀮𬡡𫡤𫱭𚀩𚠵𚐩𧑛𜁝𚐯𜠮𝐬𦐽𚁙𚱰𦱲𧑛𜑝𚐯𜠮𝐻`.replace(/u../g,'')))

Sep 3 2019 9:14 AM UTC

}// 136/140

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if(!t){X=Y=0;p=[];for(i=5;i--;)p.push([960+S(Q=6.28/5*i)*400,540+C(Q)*400])};for(i=999;i--;)x.fillRect(X*1.5,Y*1.5,2,2),X=(X+p[(r=Math.floor(Math.random()*5))][0])/2.5,Y=(Y+p[r][1])/2.5 #chaosgame #fractal

u/rodrigo.siqueira

#uncompressed (139 characters): X=Y=730;p=[];for(i=5;i--;)p[i]=([X+X+X*S(i*5),X+C(i*5.03)*X]);for(i=X;i--;x.fillRect(X,Y,2,2))X=(X+p[r=~~(X*t%5)][0])/2.5,Y=(Y+p[r][1])/2.5
u/katkip

nice

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KilledByAPixel

function u(t) {

for(i=1080;i--;)x.fillRect(i^9*i/t,i,1,1)

Apr 18 2019 2:27 AM UTC

}// 41/140

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Super Tiny Fractal Part 2

u/DataMeta

#dither #fractal
u/joeytwiddle

Very nice #tiny
u/username

it is not a fractal though
u/KilledByAPixel

It is though... Also interesting if you change the ^ to a | or & it becomes an ordinary sierpinski triangle (also a fractal).
u/username

I agree with the Sierpinski triangle, but the other one is not a fractal on my screen.

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pavel

function u(t) {

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

Feb 13 2019 9:09 PM UTC

}// 140/140

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IFS #julia attractor for c=i. Play with adding different constants to a and b in the Math.hypot call

u/pavel

a+=.123,b+=.745 is called Douady's rabbit fractal
u/katkip

How! Amazing
u/13thptr

#fractal

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katkip

remix of d/11050 by u/katkip

function u(t) {

if(!t)x.translate(960,540);x.fillStyle=R(t*30,0,t*40);x.font='300px"';x.fillText("D",99,99);x.drawImage(c,-300,0,100*t,100*t);x.rotate(3.14)

Nov 18 2018 12:53 PM UTC

}// 140/140

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D from Dwitter #fractal

u/magna

Looks like Julia!

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iverjo

function u(t) {

t?i++:i=0;for(j=1080;j--;){a=b=0;k=35;for(;k--&&a*a+b*b<4;)c=a*a-b*b+i/1e11-1,b=Math.abs(2*a*b)+j/1e11-1,a=c;x.fillRect(i,j,1,S(k/9))}

Sep 28 2016 1:14 PM UTC

}// 134/140

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Burning ship fractal, zoomed in on an interesting point

Show more comments…
u/iverjo

128 characters: for(j=1080;j--;){a=b=0;k=35;for(;k--&&a*a+b*b<4;)c=a*a-b*b+t*6e-10-1,b=Math.abs(2*a*b)+j/1e11-1,a=c;x.fillRect(t*60,j,1,S(k/9))}
u/iverjo

127 characters: for(j=1080;j--;){a=b=0;for(k=35;k--&&a*a+b*b<4;)c=a*a-b*b+t*6e-10-1,b=Math.abs(2*a*b)+j/1e11-1,a=c;x.fillRect(t*60,j,1,S(k/9))}
u/iverjo

126 characters: for(j=1080;j--;){a=b=0;for(k=35;k--&&a*a+b*b<4;a=c)c=a*a-b*b+t*6e-10-1,b=Math.abs(2*a*b)+j/1e11-1;x.fillRect(t*60,j,1,S(k/9))}
u/donbright

speechless!!
u/iverjo

#fractal
u/iverjo

#burningship

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rodrigo.siqueira

remix of d/29307 by u/rodrigo.siqueira

function u(t) {

a=b=t;for(i=4e4;i--;x.fillRect(b*28+210+k*86,a*70+768-k*70,.1,t<2))a=(k=i/a&8)-b/4+a/2,b+=a-S(a)*2+S(b/3-.01/t)

Jan 11 2024 3:14 PM UTC

}// 111/140

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altered dragon curve twins - variation #fractal

u/joeytwiddle

#jellyfish

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rodrigo.siqueira

remix of d/29141 by u/rodrigo.siqueira

function u(t) {

for(t?Y++:Y=0,X=3e3;X--;x.fillRect(X,Y-1,1,f(X/874-1.1,Y/500-1.1)))
f=(a,b,n=0)=>a?f(a*a-b*b+.31,S(a*b)*3+.1,n+1):(x.fillStyle=R(n/2,n,n),Y)

Dec 17 2023 1:25 PM UTC

}// 140/140

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Organic #fractal

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rodrigo.siqueira

remix of d/29115 by u/baon

function u(t) {

for(t?Y++:Y=0,X=3e3;X--;x.fillRect(X,Y,1,f(X/2e3-.6,Y/1500)))f=(x,y,n=0)=>y?f(x*x-y*y,S(x*y)*4+.5,n+1):C(n/3-t/3)/2+.5

Dec 14 2023 8:41 PM UTC

}// 118/140

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Superspiral #fractal

u/tomxor

Gnarly!

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rep_movsd

function u(t) {

eval(unescape(escape`𣐽𣑡𭁨𒡴𯁼𚁏👍𛡲𨑮𩁯𫐨𚐫𙰧𚐊𩡯𬠨𠐽𜡥𜰻𭀼𝐦𙡁𛐭𞱸𛡦𪑬𫁓𭁹𫁥👒𚁋👌𚠪𜠬𢰪𣱛𝑝𛁏𦰸𧐪𢰩𛁸𛡦𪑬𫁒𩑣𭀨𠐬𭀪𜰰𜀬𜐬𝠩𚑦𫱲𚁌👑🐮𜐬𢐽𞐹𞱉𛐭𞰩𤐽𚁖👏𦱉𙐹𧐾𜰿𠐯𝐰𜀺𭀩𚡑𚠨𜐭𤐩𛁌𚰽𣐮𫁯𩰨𣐮𨑢𬰨𥠪𚀱𛐲𚡑𚐩𚐯𚀱𚱏𦰴𧐩`.replace(/u../g,'')))

May 25 2022 1:23 PM UTC

}// 140/140

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Lyupanov exponent fractal

u/rep_movsd

#fractal
u/rep_movsd

Refresh for a new one
u/Joachim

Cool - they look like #alien s
u/andrea270872

wow. I remember something like this in Pascal back in the 90s... it used to take me hours to render them in VGA! :D

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