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/12312 by u/robbyg

function u(t) {

c.width|=B=(X,Y,A,L,h,v)=>L>7&&(x.lineTo(h=X+C(A)*L,v=Y-S(A)*L),B(h,v,A-t/8,L*.73),B(h,v,A+t/2,L*.73))
B(800,890,1,260)
x.stroke()

Feb 12 2019 10:36 PM UTC

}// 130/140

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Plants, thorns and dragon curves #fractal

u/katkip

Wow! Amazing
u/robbyg

I was hoping someone would come up with something better to do with that function. Awesome! :)

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saon

remix of d/10377 by u/DaxterSpeed

function u(t) {

c.width=500
v=(a,b=270,g=0,r=80)=>r>1&&x.fillRect(a+=r*g,b-=r*C(g),2*T(g),5*C(g))|v(a,b,g-1+C(t),r*=.7)|v(a,b,g+.5+S(t),r)
v(250)

Feb 1 2019 1:28 AM UTC

}// 129/140

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Changed the animation, added rectangle effects

u/f8f82804

#glitch #fractal

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katkip

function u(t) {

eval(unescape(escape`挮睩摴桞㴰㭴⼽㈻昽⡘ⱙⱳ⤽㹻砮扥杩湐慴栨⤻楦⡳㸲〩砮慲挨堬夬猬〬㜩ⱸ⹳瑲潫攨⤬昨堫䌨猫琩⩳ⱙⱳ⼲⤬昨堭䌨猫琩⩳ⱙⱳ⼲⤬昨堬夫䌨猫琩⩳ⱳ⼲⤬昨堬夭䌨猫琩⩳ⱳ⼲⥽㭦⠹㘰ⰵ㐰ⰷ〰⤻`.replace(/u(..)/g,"$1%")))

Dec 30 2018 10:15 AM UTC

}// 135/140

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#circles #fractal #recursion #recursive I'm just like a gifted autistic kid who finally discovered recursion c.width^=0;t/=2;f=(X,Y,s)=>{x.beginPath();if(s>20)x.arc(X,Y,s,0,7),x.stroke(),f(X+C(s+t)*s,Y,s/2),f(X-C(s+t)*s,Y,s/2),f(X,Y+C(s+t)*s,s/2),f(X,Y-C(s+t)*s,s/2)};f(960,540,700)

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echo85

function u(t) {

for(s=300,r=4/s,j=60*t*r-2,i=-2;i<2;i+=r){for(X=i,Y=j,T=9;T--;)U=X,X=X*X-Y*Y+i,Y=2*U*Y+j;X*X<9&&x.fillRect(i*s+4*s,j*s+2*s,4,4)}

Dec 26 2018 9:54 PM UTC

}// 128/140

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mandelbrot set

u/katkip

nice #mandelbrot #fractal

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MudkipGuy

function u(t) {

eval(unescape(escape`景爨爽䵡瑨⹲慮摯洬樽〻樫⬼㤹㬩筦潲⡡㴳⩲⠩Ɫ㴲⩲⠩Ⱪ㵣㵤㴰Ɒ㴱㔻椼瀦♣⩣㰴㭩⬫⥥㵣Ᵽ㵣⩣ⵤ⩤⭡ⴲⱤ㴲⩤⩥⭢ⴱ㭸⹦楬汓瑹汥㴢桳氨∫椪瀫∬㔰┬㔰┩∬砮晩汬剥捴⠶㐰⩡ⰵ㐰⩢ⱰⱰ⥽`.replace(/u(..)/g,"$1%")))

Oct 24 2018 10:26 AM UTC

}// 134/140

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Mandelbrot Set

Show more comments…
u/MudkipGuy

uncompressed source:
u/MudkipGuy

for(r=Math.random,j=0;j++<99;){for(a=3*r(),b=2*r(),i=c=d=0,p=15;i<p&&c*c<4;i++)e=c,c=c*c-d*d+a-2,d=2*d*e+b-1;x.fillStyle="hsl("+i*p+",50%,50%)",x.fillRect(640*a,540*b,p,p)}
u/yonatan

for(j=99;j--;x.fillStyle=hsl(${i*9} 50%50%,x.fillRect(640*a,540*b,9,9))for(b=(z=j*t)**3%2,a=z**5%3,i=c=d=0;i<15&c*c<4;i++)e=c,c=c*c-d*d+a-2,d=2*d*e+b-1
u/yonatan

Nice one!
u/katkip

#mandelbrot #fractal
u/magna

#waitforit
u/joeytwiddle

Novel!
u/iverjo

Nice! Now make the rectangles progressively smaller, so that the image becomes more and more detailed over time
u/MudkipGuy

heh! I was already playing around with that... for(r=Math.random,j=99;j--;){for(a=3*r(),b=2*r(),i=c=d=0;i<30&&c*c<4;i++)e=c,c=c*c-d*d+a-2,d=2*d*e+b-1;x.fillStyle="hsl("+i*8+",50%,50%)",x.fillRect(640*a,540*b,p=30/t**.5,p)}
u/katkip

Awesome!

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leSchieber

function u(t) {

(d=(a,b,n,r)=>{a=a-n/2;b=b-n/2;x.fillRect(a,b,n,n);let m=n/2;if(--r){d(a,b,m,r);d(a+n,b,m,r);d(a,b+n,m,r);d(a+n,b+n,m,r)}})(960,540,500,7)

Jun 16 2018 6:06 PM UTC

}// 138/140

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u/lionleaf

#fractal
u/zanella

Fractals always get my awesome. :)
u/katkip

Indeed

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Xen

remix of d/1201 by u/bligglenuber

function u(t) {

x.fillStyle=`hsl(${(t*=5e2)/2},80%,50%)`
x.globalCompositeOperation='difference'
x.fillRect(t%1920,t%1080,9,9)
x.drawImage(c,0,9)

Nov 3 2017 8:09 PM UTC

}// 129/140

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it's raining rainbow sierpinski triangles!

u/zanella

I just did https://www.dwitter.net/d/4677, but yours kicked the hell out of mine. :D
u/Xen

thank you :-)
u/f8f82804

#rainbow #fractal

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rodrigo.siqueira

remix of d/29398 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert(`
for(a=b=t,i=4e4;i--;b=b/1.6-C(a*3+b/7),a+=(i*t/b&1)*3-b*S(a*4)/8-a*a/4.1)x.fillRect(880+b*600,a*2800-675,.1,t<3)

Feb 2 2024 6:40 PM UTC

}// 137/140

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Branches of the black tree spiral #fractal

u/Aeholbrook

Kinda interesting that it looks like a brain!

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rodrigo.siqueira

remix of d/25214 by u/New_Core

function u(t) {

for(X=2e3;X--;x.fillRect(X,t*60,1.6,5/a**.3)){a=X/330-3,i=b=t/6-1.5
do{d=a*a-b*b-.8,b=2*a*b+.17,a=d,i++}while(S(Math.random()*99)*a<9)}

Nov 27 2023 3:00 AM UTC

}// 135/140

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Noise Julia #Fractal

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rodrigo.siqueira

function u(t) {

c.style='filter:invert('
for(a=b=0,i=1e4;i--;a+=(i*t/b&1)/9-a*a+b*S(a/9),b+=C(a*4.6))x.fillRect(a*4e3-450,b*320,.2,t<3)

Sep 3 2023 2:03 PM UTC

}// 119/140

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Frozen pine leaves #fractal #plant

u/Joachim

Wow!! You should make more like this.
u/rodrigo.siqueira

I've just found where I saw a similar technique, it's a remix of: d/17222 by u/tomxor , and my comment there was "Please create more like this."
u/Joachim

u/rodrigo.siqueira LOL what were the chances!? Well, I guess that’s proof that people like them!

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