Random dweets | Dwitter

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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baon

remix of d/28892 by u/baon

function u(t) {

if (t>0) return
for(i=0;i<256;i++) for(j=0;j<256;j++)
a = (i^j)%9 ,x.fillStyle=R(a,a,a,a), x.fillRect(i*4+450, j*4, 4, 4)

Nov 22 2023 10:27 AM UTC

}// 121/140

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firegodjr

function u(t) {

x.shadowColor="#fff"
x.shadowBlur=200
x.shadowOffsetY=30
for(i=3;i--;)
x.fillRect(t*300,100+300*i+S(t)*50,50,200)

Sep 24 2018 4:15 PM UTC

}// 113/140

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Carving out grooves in the canvas :)

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KilledByAPixel

function u(t) {

x.beginPath(t*=60)
for(i=40;i--;)x.arc(t%16*120+60,(t>>4)*120+60,28*S(k=t*99+i%8)+28,q=S(k*k)*9+(i>>3)*Math.PI*2/5,q)
x.fill`evenodd`

Oct 18 2019 10:03 PM UTC

}// 133/140

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Star Icons

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rodrigo.siqueira

remix of d/33587 by u/rodrigo.siqueira

function u(t) {

for(i=1e4;i--;){
r=S(i/t)+S(i/3/t)**5
X=r*C(k=i/9)*1540
Y=r*S(k)*1400
Z=r*C(S(i*.1))*6-.2
x.fillRect(960+X/Z,540-Y/Z,.3,t<3)}

Apr 13 2025 5:01 PM UTC

}// 125/140

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Atomic model

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rodrigo.siqueira

remix of d/14486 by u/rodrigo.siqueira

function u(t) {

if(t<18){Y=S(t)*999,X=t*Y
for(i=7e3;i--;)ℵ=Y,Y+=S(Y+X),X+=ℵ,x.fillStyle=R(Y*60,i/55,t*8),X%=τ=Math.PI*2,Y%=τ,x.fillRect(X*310,Y*330,1,1)}

Jun 7 2019 8:14 PM UTC

}// 137/140

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Phase-space of the Standard Map - color version. It is constructed by a Poincaré's surface of section of the kicked rotator, as described here: https://en.wikipedia.org/wiki/Standard_map

u/Xen

love it!

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robohamburger

function u(t) {

c.width=1920;for(i=0;i<9;i++){st=Math.sin(i*t*2);b=256;x.fillStyle=R(b*st,b*(1-st), b*-st); x.fillRect(400+i*60,400-20*st,50,100+20*st)}

Jul 19 2016 10:14 PM UTC

}// 136/140

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u/iverjo

Remember that you can replace Math.sin with S for brevity

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DazeWare

function u(t) {

c.width|=0;x.scale(100+t,t*9);for(i=96;i--;)for(j=54;j--;)if(t*(g=1))x.fillRect(i+S(t*4+j/g)-1,j+S(t*4+i/g)-1,z=.9,z)

Oct 28 2022 10:10 PM UTC

}// 117/140

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u/joeytwiddle

square dance

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metamero

function u(t) {

eval(unescape(escape`挮睩摴栽眽㜷㜬挮獴祬攮扡捫杲潵湤㴧⍡慡✻景爨瀽〻瀼㤻⬫瀩景爨焽〻焼㤻⬫焩睩瑨⡸⥢敧楮偡瑨⠩ⱡ牣⡲㵰⨹㤬猽焪㤹ⰱ㌬〬㜩ⱦ楬汓瑹汥㴧⍦晦✬晩汬⠩ⱦ楬汓瑹汥㵒⠩ⱦ楬汒散琨爭㤲ⱳⴹ㈬㠴ⰸ㐩`.replace(/u(..)/g,"$1%")))

Nov 26 2018 11:53 PM UTC

}// 138/140

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Find the Black Dots - Scintillating Grid Illusion

u/metamero

c.width=w=777 c.style.background='#aaa' for(p=0;p<9;++p)for(q=0;q<9;++q)with(x)beginPath(),arc(r=p*99,s=q*99,13,0,7),fillStyle='#fff',fill(),fillStyle=R(),fillRect(r-92,s-92,84,84)

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jylikangas

function u(t) {

with(x)for(fillRect(0,0,2e3,2e3),fillStyle="#ccc",shadowColor=R(i=9);i--;fillRect(512+i*99+X/4,400,50,200))X=shadowBlur=(1+S(i/2+t*4))*40

Dec 9 2018 5:18 PM UTC

}// 137/140

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Grey #default

u/lionleaf

That's amazing!
u/joeytwiddle

mmm milky
u/Koi

So satisfying
u/vain

very cool

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luta

remix of d/36056 by u/luta

function u(t) {

eval(unescape(escape`󭌿󜌺󮌮󭍲󨝮󬽦󫽲󫜨󭬽󛬷󛍶󛌭󭬬󭬬󞜶󜌬󝜴󜌩󞽯󫭣󫍩󨽫󟝟󟜾󮽱󟝲󟜨󬼽󝌹󞜩󚭍󨝴󪌮󬭡󫭤󫽭󚌩󯌰󒭸󛭦󫽮󭌽󙼱󜽩󫬢󙼻󮌮󩭩󫍬󥍥󮍴󚌢󧍵󡌸󜽅󧍵󡍄󝭁󘬬󛜸󜬰󛌶󜬰󚜊󩭯󬬨󪜽󜝥󝌻󪜭󛜻󮌮󩭩󫍬󤭥󨽴󚌲󝌰󛝱󛍲󛜲󝜰󛌶󛌶󚜩󬜽󚍲󚭲󚽱󚜥󬼬󬬽󚍱󚭱󚽲󚜥󬽽`.replace(/u../g,'')))

Aug 1 2026 11:46 AM UTC

}// 140/140

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#pareidolia #random oracle - click to see if your favourite idol appears on a toast bread