Top #sierpinski 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/23546 by u/rodrigo.siqueira

function u(t) {

for(c.width=w=429,d=new ImageData(w,w),m=w*w,i=-1;m--;d.data[i+=4]=Y**S(t*1))Y=(m%w&m/w/2-t*40)*(50+(t+i*3)**2*m%w)
x.putImageData(d,0,0)

Aug 13 2021 3:09 PM UTC

}// 137/140

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#Sierpinski transition effect

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ciaccodavide

remix of d/21544 by u/ciaccodavide

function u(t) {

for(i=3e3;i--;)T=t*(i+t)*i%3,X=~~T%2==0?X/f:(W-X)/f+X,Y=T<2?Y/f:(W-Y)/f+Y,x.fillRect(X,Y,3,3)}{f=X=Y=3,W=1920

Feb 1 2021 3:02 PM UTC

}// 109/140

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#sierpinski

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geb

remix of d/19225 by u/Irratix

function u(t) {

r=52
c=(n,k)=>k?n*c(n-1,k-1)/k:1
n=[];for(i=-1;i++<r;n[i].push("\n"))
for(n[i]=[],j=-1;j++-i;n[i][j]=c(i,j)%2?"/":"_");throw(n)

Jun 25 2020 8:23 AM UTC

}// 127/140

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big triangle #Sierpinski

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pavel

function u(t) {

f=(a,b,w,h,i=h>1&&9)=>{for(;i--;)i-4?f(a+(i/3|0)*w,b+i%3*h,w/3,h/3):x.fillRect(a+w,b+h,w,h,x.fillStyle=R(a/3,b/4,h))}
t||f(0,0,640,360)

May 3 2019 11:22 PM UTC

}// 135/140

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#sierpinski #carpet #fractal

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geb

remix of d/12933 by u/vinca

function u(t) {

for(i=3e3,t*=99;i--;)x.fillRect(t|i,t,1,1)

Mar 30 2019 3:14 PM UTC

}// 42/140

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u/DataMeta

This must be nearly the shortest dweet
u/Xen

nice find geb, check 2923 datameta, altho xem and others have done smaller ;)
u/katkip

Wow!
u/geb

better tag them from now on #Sierpinski
u/pavel

Basically the same thing but in 40: for(i=3e3,t*=99;i--;)x.fillText(1,t|i,t)
u/Xen

37 but not as good: for(t*=i=1e3;i--;)x.fillText(i,t|i,t)

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katkip

remix of d/11584 by u/katkip

function u(t) {

eval(unescape(escape`挮睩摴桞㴰㭦㴨愬戬挩㴾筩昨挾㌩砮晩汬剥捴⡡ⱢⱣⱣ⤬昨愭挪䌨琩Ɫⵣ⩓⡴⤬振㈬振㈩ⱦ⡡⭣⼲⩃⡴⤬戫挪匨琩Ᵽ⼲Ᵽ⼲⤬昨愭振㈪匨琩Ɫⵣ⼲⩃⡴⤬振㈬振㈩ⱦ⡡⭣Ɫⵣ⼲Ᵽ⼲Ᵽ⼲⥽㭦⠸㐰ⰵ㤰ⰲ㔰⤻`.replace(/u(..)/g,"$1%")))

Dec 30 2018 9:57 AM UTC

}// 138/140

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I love #recursion , #recursive #sierpinski #d3 c.width^=0;f=(a,b,c)=>{if(c>3)x.fillRect(a,b,c,c),f(a-c*C(t),b-c*S(t),c/2,c/2),f(a+c/2*C(t),b+c*S(t),c/2,c/2),f(a-c/2*S(t),b-c/2*C(t),c/2,c/2),f(a+c,b-c/2,c/2,c/2)};f(840,590,250)

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katkip

function u(t) {

if(!t)x.translate(960,0),x.rotate(.79);for(i=0;i<48;i++)for(j=0;j<48;j++)x.fillStyle=(t*i/6&j*t/6)?"#fff":"#000",x.fillRect(i*30,j*30,30,30)

Oct 27 2018 4:42 PM UTC

}// 140/140

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Simpliest #sierpinski #fractal

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vanita5

function u(t) {

c.width=w=1280;for(i=k=512;i-=1;){for(y=k;y-=1;){i&y||x.fillRect((w/4)+i-~y/2,k-y,2,2)}}

Feb 22 2017 7:19 AM UTC

}// 88/140

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u/iverjo

#sierpinski

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tactical_retard

function u(t) {

x[f="fillRect"](0,0,10,10)
x[f](10,0,10,10)
x[f](0,10,10,10)
x.drawImage(c,10*2**frame,0)
x.drawImage(c,-10*2**frame,10*2**frame)

Oct 7 2021 4:07 PM UTC

}// 129/140

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#drawimage #sierpinski

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tactical_retard

function u(t) {

c.width|=0
s=2**(0|4+S(t)*4)
x.setTransform(1920/s,0,0,1080/s,0,0)
for(i=s*s;i--;){
X=0|i/s
Y=i%s;(t%1>.5?X&Y:!(X&Y))&&x.fillRect(X,Y,1,1)
}

Aug 28 2021 5:53 PM UTC

}// 140/140

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#sierpinski

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