New #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/17307 by u/rodrigo.siqueira

function u(t) {

for(A=a=b=0,i=1e4*(t<3);i--;){r=0|2*Math.random(),
a+=r-a/5+b*S(a*2)/2,
b+=.25-b/3+C(A*2)/4,A=a,
x.fillRect(a*420-280,b*620+180,.3,1)}

Jan 27 2020 2:01 PM UTC

}// 134/140

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Weeds in my garden #plant #fractal

u/joeytwiddle

Pretty! #nature #tree

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pavel

function u(t) {

for(x.beginPath([X,Y=X,r=X]=t?d.shift():d=[666]),i=4;i--;i&&d.push([X+p/2,Y-q/2,r/2]))p=r*S(b=i*2.094),q=r*C(b),x.lineTo(X+p,Y-q);x.stroke()

Jan 17 2020 3:48 AM UTC

}// 140/140

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Incremental #sierpinski

u/katkip

#fractal
u/Cloud

Wow! Nice fractal!

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tomxor

function u(t) {

c.style='filter:invert(1';for(a=b=0,i=1e4;i--;a+=.3*(r-a+b*S(a*3.14)),b+=.3*(-a*b+C(a*3.14)))i&1&&(r=i*t/b&1,x.fillRect(a*1920,b*960,.2,1))

Jan 15 2020 12:40 AM UTC

}// 139/140

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u/13thptr

great
u/rodrigo.siqueira

One of the most impressive images I`ve ever seen! Please create more like this. #neural #fractal
u/tomxor

Thanks rodrigo :) I will certainly try, although one does not create these things, but mines them from the computational universe :D I look forward to finding more
u/13thptr

becomes really different after a while
u/13thptr

#waitforit

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KilledByAPixel

remix of d/17201 by u/KilledByAPixel

function u(t) {

with(localStorage)T=Ṡ+Ṫ;eval(unescape(escape('𙀽𨁶𩑣𜠠𬀽𨰮𮁹𞱣👣𛡺𮡺𮠻𩡯𬠨𪑮𭀠𪐽𜀻𪐼𜰵𞰫𚱩𚑣𛡸𮐽𫑡𭀲𚀭𨰮𮐬𨰮𮀬𨰩𚡣𛡹𮀫𚁰𚡰𫱷𚀮𜐬𛠸𚱳𪑮𚀮𜠪𭀩𚐭𛠶𜐩𞱣👶𩑣𜠨𩁯𭀨𨰬𨰩𛀱𛠩𛡸𮁸𮑠𞰻'+T).replace(/u../g,'')))

Jan 14 2020 7:16 AM UTC

}// 135/140

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Shader Mandelbrot - Requires d/17141 and d/17142 #DST

u/Xen

sexy
u/katkip

#mandelbrot #fractal very sexy!

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katkip

remix of d/17018 by u/katkip

function u(t) {

f=(a,b)=>S(b)+C(a)<0?f(-a-b,-b+a):S(a+b)<0
for(i=19999;i--;){a=(r=Math.random)()*1920,b=r()*1080;if(f(a/299+1,b/299-3))x.fillRect(a,b,3,3)}

Dec 30 2019 7:49 PM UTC

}// 139/140

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#fractal #recursion #abstract

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katkip

function u(t) {

z=(a,b)=>C(a*a+b)<0?S(a*b/5):z(1.5*b-a,.4-a);t||(w=0);for(v=9;v--;++w)for(i=1080;i--;)x.fillStyle=R(z(i/990,w/999)*500),x.fillRect(w,i,1,1)

Dec 29 2019 3:49 PM UTC

}// 139/140

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I would like to understand how this works. I made just a random recursive formula and the result is too beautiful! #recursion is awesome

u/katkip

#slow #scanline #fractal
u/poetaster

a rose by any other name is still a rose by any other name is

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katkip

function u(t) {

z=(a,b)=>C(a)<0?S(a*a-b*b/a):z(b*1.4,1-a);t||(w=0);for(v=9;v--;++w)for(i=1080;i--;)x.fillStyle=R(0,0,z(i/990,w/999)*500),x.fillRect(w,i,1,1)

Dec 28 2019 2:55 PM UTC

}// 140/140

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#fractal

u/katkip

#scanline #slowrender

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katkip

function u(t) {

t||(X=I=297,Q=0);for(i=99;i--;){x.fillRect(Q%X*4,Q/X*6,4,I/X*8);for(V=W=0,X=I=297;I--/V;W=Z*2+Q/2e4-1)Z=V*W,V=V*V-W*W+Q/99%3-2,Q+=.1}

Dec 20 2019 3:37 PM UTC

}// 133/140

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#mandelbrot #fractal adapted from https://github.com/xem/miniMandelbrot from u/xem

u/Xen

nice

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adroitwhiz

function u(t) {

a=400
b=170
c.width=568
x.lineWidth=d=3
for(i=1;i<999*t;i++){x.lineTo(a,b)
a+=d%2
b+=(d-1)%2
d=(d+4+((((i&-i)*2&i)>0)*2))%4-1}x.fill()

Dec 20 2019 2:43 PM UTC

}// 134/140

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Dragon checkerboard

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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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