Top #mandelbrot 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/14525 by u/rodrigo.siqueira

function u(t) {

for(var I=960;I--;)for(var U=P=X=I/190-3,Q=Y=t/3-1.85,k=14;k--;)U=X,X=X*X-Y*Y+P,Y=2*U*Y+Q,X*X>2?x.fillRect(I*2,t*99,2,2):x.fillStyle=R(k**2)

Jun 14 2019 2:56 PM UTC

}// 140/140

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Red rays from the Mandelbrot Set #mandelbrot #fractal

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u/KilledByAPixel

Amazing.
u/artfarnaa

Is there a way to make these fractal examples render faster? Perhaps offload the calculations to web assembly?
u/username

"Red rays" also known as low iteration count
u/13thptr

u/artfarnaa wasm isn't much faster than js on most platforms and it takes a lot of space to set up
u/13thptr

see u/rbong's work on it
u/katkip

i don't understand this so awesome
u/rodrigo.siqueira

Artfarnaa, it is possible to make super fast, see this pure JS fast implementation: https://csl.name/mandelbrot/ There are many tricks specifically created to calculate Mandelbrot Set (e.g. avoid calculations in a rectangle inside the main set because all pixels are white and calculations in this white area is slower than other parts), but no speed optimization were used here because of space constraints. Some tricks to make it faster: do not use time variable to do calculations (because it is max 60 fps), do not plot each pixel, but store them in an array and plot at once using c.putImageData(img)...
u/KilledByAPixel

There is one way to make it very very fast. I just made a quick shader of it for you! https://www.shadertoy.com/view/wtjGz3
u/artfarnaa

Thanks guys, great inspiration.

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Blacklink

function u(t) {

eval(unescape(escape`㭣⹷楤瑨簽愽〻猽㔰⭃⡴⤪⠳〫⸱⩴⤻景爨㭡㰱㤲〻愫㵳⥻景爨戽〻戼㄰㠰㭢⬽猩筥㵡⼴㠰ⴲ⸵㭦㵢⼴㠰ⴱ㭨㵤㵮㴰㭷桩汥⡨⩨⭤⩤㰴☦渼琩筧㵨⩨ⵤ⩤⭥㭤㴲⩨⩤⭦㭨㵧㭮⬫絩昨渼琩砮晩汬剥捴⡡Ɫⱳⱳ⥽紻`.replace(/u(..)/g,"$1%")))

Jul 3 2019 3:01 PM UTC

}// 140/140

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An animation showing the impact of resolution and loop depth on the quality of a mandelbrot!

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u/Blacklink

I think that I 'may' have been able to make it draw the pattern without compression but to make it more unique I wanted to add these features which required compression
u/Blacklink

the resolution changes but also the max resolution increases over time, just as the loop depth increases over time
u/Xen

woah! that is damn impressive! i love it
u/Xen

#waitforit #mandelbrot
u/katkip

#fractal #slowrender
u/KilledByAPixel

👍

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tactical_retard

remix of d/24094 by u/tactical_retard

function u(t) {

eval(unescape(escape`󦜽󭌪󝬰󒭨󟜵󝌰󒭦󫽲󚍘󟜲󩜳󞽘󛜭󞽸󛭦󪝬󫍓󭍹󫍥󟝲󟽠󪍳󫌨󙍻󩌽󚍍󨝴󪌮󪍹󬍯󭌨󦌭󞜶󜌬󦜭󪌩󙭘󙝙󚜥󜬰󚬵󯜬󞜹󙜬󙍻󩍽󙝠󞭒󚌩󛍸󛭦󪝬󫍒󩝣󭌨󦌬󦜬󜜬󪌪󜬩󚝻󬬽󠜽󚍘󛜹󝬰󚜯󝌸󜌊󪬽󠬽󚍙󛝨󚜯󝌸󜌊󩭯󬬨󢜽󝼰󞽉󛜭󞽪󟜲󚭪󚭭󚽂󚝭󟝲󛍲󟝲󚭲󛝪󚭪󚽁󯜻`.replace(/u../g,'')))

Oct 15 2021 12:28 AM UTC

}// 139/140

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#gold #mandelbrot #sierpinski

u/cantelope

an unholy union lel
u/e4494s

how the frick

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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

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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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vinca

function u(t) {

for(c.width=50,i=1250;i--;x.fillRect(X,Y,1,1/n*5))for(n=R=0,I=S(t);n<20&R*R+I*I<4;n++)a=R*R-I*I+(X=i/25|0)/50,b=2*R*I+(Y=i%25)/25,R=a,I=b

Apr 24 2019 12:02 PM UTC

}// 138/140

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u/Xen

nice
u/13thptr

reminds me of https://www.dwitter.net/d/697
u/katkip

I don't understand anything of this.
u/vinca

oh. d/697 is nice.
u/joeytwiddle

#fractal #mandelbrot

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rodrigo.siqueira

remix of d/27286 by u/rodrigo.siqueira

function u(t) {

for(v=360;v--;)for(a=b=0,i=9;i--;x.fillStyle=R(a/b*v,b*a))f=a*b,a=a*a-b*b-3+t/5,b=2*S(f)+v/90-2.01,x.fillRect(t*80,3*v,b,b)

Mar 29 2023 12:30 PM UTC

}// 123/140

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Neuro-vascular structure of the Mandelbrot Set #fractal #mandelbrot

u/jdspugh

Wow
u/cantelope

Wild!

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function u(t) {

y=t?y+1:0
for(n=0;n++<1920;x.fillStyle=R(i*12),x.fillRect(n,y,1,1))for(d=e=0,i=20;d*d+e*e<4&&--i;e=2*d*e+y/432-1.3,d=f)f=d*d-e*e+n/480-2.5

Jul 13 2022 8:12 AM UTC

}// 138/140

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made this on my phone

u/KilledByAPixel

nice, welcome to the club! #mandelbrot

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rodrigo.siqueira

remix of d/21421 by u/rodrigo.siqueira

function u(t) {

M=(a,r=0,i=0,n=40)=>r*T(i*t)<n?M(a,r*r-i*i+a,2*r*i-t/5+1.2,n-=3):-n/9;for(i=2e3;i--;)x.fillRect(i,t*90,M(i/520-2.5)+1,2)

Jan 24 2021 5:12 PM UTC

}// 120/140

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Dramatic spider web effect inside the #mandelbrot set #noise

u/Qwitter

Its easy to like noises that sound like that
u/magna

Stylish!

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rodrigo.siqueira

remix of d/19239 by u/rodrigo.siqueira

function u(t) {

for(i=2e3,f=(X,a=0,b=0,n=22)=>a<n?f(X,S(a*a)-b*b+X,2*a*b+t/3-2,n-1):x.fillStyle=`hsl(0 50% ${n*n}%`;i--;x.fillRect(i,90*t,1,999))f(i/400-2)

Jun 26 2020 8:23 PM UTC

}// 139/140

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Mandel bug antennas #mandelbrot

u/Xen

Sexy!

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