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: #Opposites

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rodrigo.siqueira

remix of d/19302 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert(`
for(i=1e4;i--;f(0,0,320/(1+i%2),t*i))f=(X,Y,s,r)=>s>1?f(X+s*S(r),Y+s*C(r),s/(2+t),r*9):x.fillRect(X+940,Y+520,1,.1)

Jul 3 2020 9:21 PM UTC

}// 140/140

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8-symmetry spike #fractal

u/tomxor

Great stuff, so intracate, I like the first 10 seconds where there is both more detail and movement. #art
u/electric-skeptic

#waitforit

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tomxor

remix of d/19279 by u/rodrigo.siqueira

function u(t) {

f=(X,Y,n=9)=>n>X*X?f(X*X-Y*Y+C(X)-C(t*n/4),X*Y+1,n+S):x.fillStyle=R(n,n/3);for(i=9e3;i--;f(X/250-4,i/2e3-2))x.fillRect(X=i%128*S,i/8,S,S=16)

Jun 30 2020 11:23 PM UTC

}// 140/140

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Hmm, #julia set #fractal

u/tomxor

C(t*n)? Strange how it doesn't perceptibly speed up.

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rodrigo.siqueira

remix of d/18852 by u/rodrigo.siqueira

function u(t) {

for(i=2e3,f=(X,Y,n=7)=>Y?f(X*X-Y*Y+X*Y,1.2*X*Y-.8,n+.1):x.fillStyle=`hsl(0,80%,${S(n*.2)*99}%`;i--;x.fillRect(i,t*60,1,999))f(i/480-2,1-t/9)

May 21 2020 3:54 AM UTC

}// 140/140

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Red Double Spiral (if you have a large monitor, view fullscreen to see stars on the black sky) #fractal #spiral

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LydianLights

function u(t) {

for(i=W=!t*1920;i;i-=4)for(j=1080;j;j-=4){a=A=i/640-2;b=B=.8-j/640;n=9;while(--n&&a*a+b*b<4){d=a*a-b*b+A;b=2*a*b+B;a=d}n&&x.fillText(n,i,j)}

Dec 20 2019 6:05 AM UTC

}// 140/140

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Huge improvement over my last Mandelbrot! I learned some tricks from y'all :D

u/katkip

#mandelbrot #fractal
u/LydianLights

Just noticed that this looks different on different computers because of the fillText(). It also looks trippy if you resize the page!

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rodrigo.siqueira

remix of d/14479 by u/rodrigo.siqueira

function u(t) {

v=(a,b,Φ,r)=>{for(i=~r;i++;)x.fillRect(a-=S(Φ),b-=C(Φ),r/70,.6)
while(r>8)v(a,b,Φ+S(b)/3,r*=.7)}
v(~~t*177%2e3,1e3-t*20,0,99*(t%(K=3-t/25)))

Oct 23 2019 3:08 PM UTC

}// 140/140

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Crop Growth #organic #fractal #tree #plant

u/Xen

nice
u/joeytwiddle

Look like slithy toves to me

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KilledByAPixel

remix of d/14965 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𪐽𩡲𨑭𩐭𜐻𤰽𠰽𜐬𣐽𚁩𙐳𜠩𛁎👩🠾𝐻𦀽𜐮𝐭𣐯𜐶𞱙👎𛰹𛐱𞱦𫱲𚁪🐳𩐳𞱪𛐭𞱸𛡦𪑬𫁒𩑣𭀨𜰰𚱍𚠶𜀫𜠱𚡓𛀳𜀫𣠪𝠰𚰲𝐪𠰬𜐬𜐩𚑳👍𨑴𪀮𬡡𫡤𫱭𚀩🀮𝐿𛐱𞠱𛁁🐨𣑡𭁨𛡨𮑰𫱴𚁓𚰽𦀬𠰫👙𚐫𤰩𛰲𛁃🐨𠰼𜀿𛑳𞡳𚐪𚁁𛑓𚐪𚠮𝐬𤰽𬰪𠐪𚠮𝐻`.replace(/u../g,'')))

Jul 16 2019 3:44 AM UTC

}// 140/140

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#julia set map ~ showing it's relationship to the mandelbrot set #fractal

u/KilledByAPixel

15000th Dweet!
u/katkip

Awesome
u/magna

Squint to see a Mandelbrot

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Xen

remix of d/14525 by u/rodrigo.siqueira

function u(t) {

for(I=1e3;I;x.fillRect(I--,t*199,X>1,3))for(W=X=I/250-3,Z=Y=t-1.5,T=9;T--;Y=2*U*Y+Z)U=X,X=X*X-Y*Y+W

Jun 17 2019 6:28 PM UTC

}// 99/140

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99byte dwitter #mandelbrot #fractal

u/13thptr

!
u/Xen

massive shoutz to rodrigo, nice clean code, couldn't of golfed this without him!
u/katkip

97 for(I=1e3;I;x.fillRect(I--,t*199,X>1,3))for(W=X=I/250-3,Z=Y=t-2,T=9;T--;Y=2*U*Y+Z)U=X,X=X*X-Y*Y+W

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rodrigo.siqueira

remix of d/4665 by u/ben

function u(t) {

v=(a,b,Φ,r)=>{for(i=~r;i++;x.fillStyle=R(0,Φ*30))x.fillRect(a+=S(Φ),b-=C(Φ),r/30,1)
while(r>3)v(a,b,Φ+S(b)/4+.4,r*=.72)}
v(t*2e4,1450,t,490)

Jun 5 2019 3:02 PM UTC

}// 140/140

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Windy garden #fractal #tree

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pavel

remix of d/10477 by u/pavel

function u(t) {

s=3+15*t%6;i=960-s*365;j=s*210;for(c.width|=a=n=0;n<1e4;T=n=>n&&T(n>>1)-n&1)T(n++)?x.lineTo(i-=s*C(A=a++*355/339),j+=s*S(A)):a-=3;x.stroke()

Nov 6 2018 4:56 AM UTC

}// 140/140

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#koch #fractal

u/13thptr

#zoom #loop

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rodrigo.siqueira

remix of d/29134 by u/rodrigo.siqueira

function u(t) {

for(t?Y++:Y=0,X=3e3;X--;x.fillRect(X,Y,1,f(X/874-1.1,Y/500-1.1)))f=(a,b,n=0)=>b?f(a*a-b*b+.28,T(a*b)*3,n+1):(x.fillStyle=R(n*2,n),S(n/3)+.5)

Dec 15 2023 8:27 PM UTC

}// 140/140

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Fractal Brain #fractal

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