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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rodrigo.siqueira

remix of d/21610 by u/rodrigo.siqueira

function u(t) {

for(var i=1081;i--;x.fillRect(t*60,i,1,1-S(f(0,0,80))))f=(X,Y,n)=>T(Y*X)<4&&n?f(X*X-Y*Y+t/9-2.3,2*X*Y+i/450-1.2,n-1):n*4

Feb 9 2021 11:45 AM UTC

}// 120/140

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Noisy Mandelbrot #mandelbrot #fractal

u/Xen

nice!

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Tesseract

function u(t) {

for(j=c.width=128;j--;g(j&7,k=j>>3)>t%4||x.fillRect(j%8*9,9*k,9,9))g=(x,y)=>x|y&&(x>3?4-g(7-x,y):(o=y>>2)+g([y,x][o]%4<<1,[x,y][o]%4<<1)/4)

Nov 26 2020 9:20 AM UTC

}// 139/140

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Hilbert curve

u/Tesseract

It's basically a coincidence that the recursive function terminates - it takes more calls than you'd expect and it doesn't work if you try scaling it up.
u/Tesseract

#fractal
u/Xen

nicely done!

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ntsutae

remix of d/20301 by u/rodrigo.siqueira

function u(t) {

孒=(乂,丫,卌=0)=>乂*乂>3?卌:孒(1+乂*丫*3,S(乂*乂*40)*Math.abs(乂-丫),卌+36);for(工=山=2e3;工--;x.fillRect(工,t*60,1,色))x.fillStyle=R(色=孒(工/山+.25,t/19-.8),色,色)

Nov 11 2020 3:16 PM UTC

}// 139/140

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#fractal

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rodrigo.siqueira

remix of d/19818 by u/rodrigo.siqueira

function u(t) {

f=(X,Y,n=3)=>Y*Y+X*X>4?n:f(2*X*Y+.7,Y*Y-X*X,n+16);for(i=2e3;i--;x.fillRect(i,t*60,1,1))x.fillStyle=`hsl(${K=f(i/3e3,t/45)},99%,${S(K)*90}%)`

Sep 1 2020 2:27 PM UTC

}// 140/140

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Deep #fractal spirals

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rodrigo.siqueira

remix of d/18379 by u/rodrigo.siqueira

function u(t) {

for(i=2e3,f=(X,a=0,b=0,n=190)=>a<n?f(X,a*a-b*b+X,2*a*b+t/9-1,n-6):x.fillStyle=`hsl(0,50%,${S(a)*n}%`;i--;x.fillRect(i,400*t,2,i))f(i/4e3-.4)

Apr 21 2020 8:38 PM UTC

}// 140/140

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Stochastic #Mandelbrot zoom #fractal

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ersagun

remix of d/18292 by u/ersagun

function u(t) {

if(!t)B=[-1,0,1,A=0],X=Y=700;z=frame;while(~z&1)z/=2;x.fillRect(X+=B[(A+=z&3)&3],Y-=B[~A&3],1,1)

Apr 16 2020 11:39 PM UTC

}// 96/140

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Dragon curve #fractal This is all I can golf.

u/ersagun

It may have an integer overflowing problem with the angle. I couldn't wait that long to confirm it.

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KilledByAPixel

remix of d/18197 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𭀿𠐮𬁵𬱨𚁻𦀺𦀽𥀨𥀽𧰽🡍𨑴𪀮𬡡𫡤𫱭𚁁𛡭𨑰𚀨𨐬𪐬𫐩🐾𮱷𪑴𪀨𨐩𚁘👘𚡘𛑙𚡙𚰨𦐽𜠪𦐪𦀫𠠬𠐩𚐿𮀮𩡩𫁬𤡥𨱴𚁘𚠵𝀰𚰱𜠰𜀬𦐪𝐴𜀫𝐴𜀬𜐬𜐩𞡭𛡳𬁬𪑣𩐨𪐬𜐩𯐩𚐪𝀭𜠩𛁙𞡙👔𚁣𛡳𭁹𫁥𛡦𪑬𭁥𬠽𙱳𩑰𪑡𚀩𪑮𭡥𬡴𚀧𚐬𠐺𦀬𠠺𦑽𚐺𠐽𦱝`.replace(/u../g,'')))

Apr 10 2020 9:14 PM UTC

}// 140/140

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Mandelbrot Galaxy 2.0

u/KilledByAPixel

For this one it keeps a persistent list and updates each item once per frame, fullscreen recommended.
u/magna

This is so pretty!
u/KilledByAPixel

#buddhabrot #fracta
u/KilledByAPixel

#fractal

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rodrigo.siqueira

remix of d/17694 by u/rodrigo.siqueira

function u(t) {

for(A=a=b=0,i=1e4*(t<5);i--;)a+=2*(S(t*i**7)<0)-a/2+b*S(a),b+=C(A)/2+.3-S(b/3),A=a,x.fillRect(a*422,b*630+260,.4,1)

Feb 27 2020 2:20 AM UTC

}// 115/140

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Curly plants #growth #plant

u/katkip

#fractal

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katkip

remix of d/15612 by u/katkip

function u(t) {

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

Dec 17 2019 1:32 PM UTC

}// 139/140

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#uncompressed

u/katkip

by u/rodrigo.siqueira #chaosgame #fractal n=5, r=3/8

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katkip

function u(t) {

eval(unescape(escape`瑼簨焽孝Ɒ㴰⤻昽⡘ⱙⱳⱺ⤽㹻楦⡳㸲⥻牥瑵牮⁦⡘⭓⡺⼲⤪猪㈬夫䌨稪㌩⩳ⱳ⼲ⱺ⨴⥽敬獥筲整畲湛堬奝絽㭦潲⡩㴹㤹㭩ⴭ㬩焽昨㤶〬㔴〬㈵〬瀫㴱⤬砮晩汬剥捴⡱嬰崬煛ㅝⰲⰲ⤻`.replace(/u(..)/g,"$1%")))

May 24 2019 2:17 PM UTC

}// 128/140

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This looks like a #fractal x-wing ship #spirograph

u/rodrigo.siqueira

Same result, uncompressed, 128 bytes: t||(p=0) f=(X,Y,s,z)=>s>2?f(X+S(z/2)*s*2,Y+C(z*3)*s,s/2,z*4):[X,Y] for(i=999;i--;)q=f(960,540,250,p++),x.fillRect(q[0],q[1],2,2)
u/rodrigo.siqueira

My previous comment is not working because of "enter" converted to "space".
u/rodrigo.siqueira

Same result, uncompressed, 128 bytes (correct code): t||(p=0);f=(X,Y,s,z)=>s>2?f(X+S(z/2)*s*2,Y+C(z*3)*s,s/2,z*4):[X,Y];for(i=999;i--;)q=f(960,540,250,p++),x.fillRect(q[0],q[1],2,2)

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