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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Current theme challenge: #ScaryMovies

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rodrigo.siqueira

remix of d/19275 by u/rodrigo.siqueira

function u(t) {

for(K=17,j=64;j--;)for(var i=99,f=(X,Y,n=9)=>X*X<n?f(X*X-Y*Y-T(t),X*Y+1,n+K):x.fillStyle=R(n,n/3);i--;f(i/K-3,j/K-2))x.fillRect(i*K,j*K,K,K)

Jun 29 2020 3:55 PM UTC

}// 140/140

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Faster animated #julia set #fractal

u/DataMeta

wow, breathtaking!
u/DataMeta

also lol at "InternalError: too much recursion" :P
u/donbright

incredible!

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tomxor

remix of d/18323 by u/pavel

function u(t) {

f=(x,y,n=w)=>x<n?f(x*x-y*y-.8,2*x*y+.2,n-1):S(n/9)
for(w=c.width=99,i=6e3;i--;)
x.fillRect(X=i%w,Y=i/w,1,f((X-49)/t**8,(Y-28)/t**8-.703956))

Apr 22 2020 7:38 PM UTC

}// 140/140

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#zoom #julia #fractal

u/tomxor

Including x<n and .2i from u/rodrigo.siqueira
u/xem

amazing! how many extra bytes to have it less pixellized?
u/tomxor

Only +2 for 1/4 HD: d/18436 but your CPU will cry :P in fact full HD fits but you have to start measuring the speed in seconds per frame.
u/iverjo

Impressive!

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rodrigo.siqueira

remix of d/13410 by u/katkip

function u(t) {

if(t<2){x.globalAlpha=.7
x.fillRect(0,0,1,1)
x.rotate(Math.PI*.8)
x.translate(-450,-700)
x.drawImage(c,0,0,1e3,1e3)
x.translate(-900,-310)}

Apr 23 2019 2:52 PM UTC

}// 139/140

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Starfield #fractal

u/katkip

Nice
u/sigveseb

Pretty af
u/Purpzie

Shortened by 5 characters: if(t<2)with(x)globalAlpha=.7,fillRect(0,0,1,1),rotate(Math.PI*.8),translate(-450,-700),drawImage(c,0,0,1e3,1e3),translate(-900,-310)

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nonce

remix of d/894 by u/iverjo

function u(t) {

for(i=c.width=99;i--;){for(j=55;j--;){for(k=32,a=b=0;--k&&a*a+b*b<4;a=_)_=a*a-b*b+(i-27)/t**3-7/4,b=2*a*b+(j-27)/t**3;x.fillRect(i,j,1,!k)}}

Apr 2 2017 3:40 AM UTC

}// 140/140

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This is a zoom into the mini-mandelbrot at -1.75 + 0i

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u/donbright

super cool, amazing.
u/Renaud___

Nice
u/jick

Holy cow, this is great.
u/ObjectDisoriented

Did you just do a low res mandlebrot in 140 characters? Way more awesomes needed.
u/sigveseb

Nice! Here's mine from a while back: https://www.dwitter.net/d/1735
u/iverjo

#mandelbrot #fractal
u/katkip

no way

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FireFly

remix of d/1689 by u/FireFly

function u(t) {

for(s='0',i=6;i--;c=s[t*60|0])s=s.replace(/\d/g,i=>['+1-0-1+','-0+1+0-'][i]);c<2?x.translate(18,0,x.fillRect(0,0,18,3)):x.rotate(c+60/57.3)

Mar 1 2017 5:45 PM UTC

}// 139/140

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L-system visualizer. Sierpiński arrowhead curve

u/donbright

brilliant.... any description of how it works?
u/donbright

n/m i see you explain it in 1688, thanks!
u/tomkh

haha... using translate/rotate is a cool hack! reminds me of LOGO turtle
u/FireFly

Hehe, it's handy to offload the job of keeping track of the turtle to the canvas.
u/katkip

#fractal

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pyxyne

function u(t) {

eval(unescape(escape`𭀿𜀺𩰽𦱝𞱸𛡧𫁯𨡡𫁁𫁰𪁡🐱𛑴𛰨𭀫𜐩𞱦𫱲𚁩🐴𝠰𞀰𜀻𪐭🐲𞰩𪑦𚀨𨠽𩱛𪑝🰿𜀩𛐳𚑧𦱩𧐽𨠪𨠭𚁣👧𦱪👩𚰱𧐿🰰𚐪𨰫𚁤👩𛰲𙐶𝀰𚐯𜐸𜀭𜠮𝀬𩱛𪡝🐲𚡢𚡣𚰨𩐽𪐯𜐲𞀰𯀰𚐯𜐸𜀭𜐬𨠪𨠫𨰪𨰾𝀿𮀮𩡩𫁬𤡥𨱴𚁤𚠳𛀨𩑼𜀩𚠳𛁧𦱩𧐽𜰬𜰩𞠰`.replace(/u../g,'')))

Sep 5 2023 5:09 PM UTC

}// 138/140

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A classic

u/cantelope

impressive speed
u/KilledByAPixel

welcome to the mandelbrot club!
u/magna

#mandelbrot #fractal
u/Xen

Welcome to the dwitter family!

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rodrigo.siqueira

remix of d/18323 by u/pavel

function u(t) {

for(i=2e3,f=(X,Y,n=89)=>X<9?f(X*X-Y*Y-.8,2*X*Y+.2,n+2):x.fillStyle=`hsl(${n*2} 90%${n/2}%`;i--;x.fillRect(i,t*90,1,900))f(i/490-2,1-t/6)

Apr 19 2020 9:13 PM UTC

}// 136/140

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Color #Julia Set #fractal purple blue rays

u/pavel

Broken on Safari because of the missing space in the hsl
u/katkip

satisfying to watch
u/rodrigo.siqueira

Here is a version (with other colors) working on Safari: https://www.dwitter.net/d/18352

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Xen

remix of d/4665 by u/ben

function u(t) {

v=(a,b,g,r)=>{for(i=0;i++<r;)x.fillRect(a+=S(g),b-=C(g),r/9,2)
r>1?v(a,b,g+=S(t/2),r*=.7)&v(a,b,g+=C(t)*6,r):0}
c.width=400
v(200,230,0,64)

Dec 29 2017 3:53 PM UTC

}// 139/140

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had to have a play with it, shoutz to ben.

u/ben

windy! I prefer the more tranquil scene...
u/Xen

i live in england, the weathers crap!
u/joeytwiddle

#fractal #tree Are you originally from England Xen? I saw a picture of you once and you looked cooler than that ... maybe Spanish?

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pavel

function u(t) {

f=(n,x,y)=>n<1&x*x+y*y<4?f(n+.01,x*x-y*y-X/1e4-1.65,2*Math.abs(x*y)+Y/1e4-.09):n
for(i=3e4;i--;x.fillRect(X=u&2047,Y=u>>11,1,f(0,0,0)))u=-~u

Jul 24 2022 4:34 PM UTC

}// 140/140

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Burning Ship

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u/pavel

#burningship #fractal
u/rodrigo.siqueira

Incredible!I've just seen a discussion about this Burning Ship Fractal on Hacker News: https://news.ycombinator.com/item?id=32210140
u/cantelope

looks more like a black cat caught in a spider's web to me
u/danny@hille.dk

f=(n,x,y)=>n<1&x*x+y*y<4?f(n+.01,x*x-y*y-X/1e4-1.7,2*Math.abs(x*y)+Y/1e4-.08):n for(i=3e4;i--;x.fillRect(X=u&2047,Y=u>>11,1,1,x.fillStyle=hsl(${(m=f(0,0,0))*60+200},99%,${m*200}%))u=-~u
u/rep_movsd

Amazing
u/rep_movsd

Amazing
u/rep_movsd

I have an NFT based on this where I manually hunted for interesting patt patterns at anywhere from 100x to 10 trillion X zoom. there are literally infinite variations
u/rep_movsd

Some locations in this https://imgur.com/gallery/XQR8tNw

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rodrigo.siqueira

remix of d/20249 by u/ntsutae

function u(t) {

f=(X,Y,n=0)=>X*X>4?n:f(2*X*Y-.7,S(Y*Y-X*X),n+1);for(i=w=1920;i--;x.fillRect(i,t*60,1,g))x.fillStyle=R(g=f(i/w,t/22)**1.3,g/2.5)

Oct 13 2020 3:34 PM UTC

}// 127/140

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Melting hot #fractal #spiral

u/Xen

sweet style
u/katkip

beautiful
u/rep_movsd

#underrated

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