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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Current theme challenge: #Food

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rodrigo.siqueira

remix of d/27851 by u/RomanPro100

function u(t) {

for(j=3;j>0;j--){for(i=999*S(t)**2;i>0;i--)x.fillRect(300*S(k=i*i)+475*j,99*C(k)+240*j+99*T(i+t)**2,t/8,t<5)}

May 31 2023 12:23 PM UTC

}// 109/140

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Pipes remix: fine grained #noise

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rodrigo.siqueira

remix of d/18339 by u/rodrigo.siqueira

function u(t) {

for(i=2e3,f=(X,Y,n=-20)=>Y<i?f(X*X-Y*Y-.8,2*X*Y+.2,n+2):x.fillStyle=`hsl(${C(n/9)*55} 90% ${n}%`;i--;x.fillRect(i,t*90,1,i))f(i/490-2,1-t/6)

Apr 20 2020 6:00 PM UTC

}// 140/140

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Purple yellow #Julia Set #fractal with black background. Now with the Safari correction pointed out by u/pavel

u/pavel

Damn that looks nice
u/DataMeta

Beautiful!!

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katkip

remix of d/11524 by u/katkip

function u(t) {

t||x.translate(960,540);for(i=99;i--;)x.fillStyle=i%2?'#fff':"#000",x.fillRect(-i*10+S(i*t)*t,-i*10+C(i*t)*t,20*i,20*i);

Dec 22 2018 6:52 PM UTC

}// 120/140

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Their colors aren't changing. Their position is.

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username

remix of d/15369 by u/username

function u(t) {

g=c.width^=0
for(j=3;j--;)for(i=g;--i;x.fillRect(i,540-w/2+S(i/43)*9+(q=960-i)/2*(q>>31)**i,2,w))w=.4**(i/99-(t+j*3)*6%27+5)**2*161+9

Aug 17 2019 9:55 AM UTC

}// 133/140

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continuous split

u/kipkat

cute
u/katkip

also cute

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KilledByAPixel

remix of d/23148 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󡬽󧼽󟬨󚌱󛝘󙜱󚜪󤼨󦍞󦜩󚽘󙜱󚭓󚍘󚼱󧭙󚜩󚬹󞜊󩭯󬬨󮌮󩭩󫍬󤭥󨽴󚌰󛌰󛍩󟝺󟜲󩜳󛍺󚜻󪜭󛜻󮌮󨽬󩝡󬭒󩝣󭌨󭝛󪝝󚼽󠼨󨜽󡬨󦌽󭝛󪝝󛼹󞜩󚬨󜜭󦜥󜜩󚽙󙜱󚭆󚍙󚼫󚜩󛍵󦽩󚽺󧜫󟝓󚍡󚜬󜼬󜼩󚝙󟝴󟽵󦽩󚽺󧜯󞜹󞭵󦽵󦽩󚽺󧜽󪝝󟝩󚭩󙝺󒭸󛭧󫍯󨭡󫍁󫍰󪍡󟜮󜌲`.replace(/u../g,'')))

Jul 29 2025 6:02 PM UTC

}// 140/140

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Flow Field 🌀

u/cantelope

impressive

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username

remix of d/12929 by u/username

function u(t) {

for(c.width|=j=999,t*=.3;j--;x.font=`6em'`)r=t+9*j,x.fillText('.',1e3+r*S(j/10*C(t)),557+r*S(j/10*S(t)))

Mar 29 2019 6:49 PM UTC

}// 104/140

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tomxor

remix of d/18851 by u/Foldster

function u(t) {

for(c.width=128,i=1e4;X=i&127,Y=i>>7,i--;)
x.fillRect(X+Y*(X/64-1),Y-Y**2/48+48,2,R),
Y-=t*90,R=(X+Y^Y-X)%(48+t)<6

May 19 2020 1:17 PM UTC

}// 114/140

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Different code but same basic (X+Y^Y-X) and theme

u/sigveseb

neat

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anthonylewis

function u(t) {

Z=Math.random;F=Math.floor;
x.fillStyle=R(F(Z()*256),F(Z()*256),F(Z()*256));
x.fillRect(F(Z()*19.2)*100+25,F(Z()*10.8)*100,75,75);

Apr 4 2018 3:56 AM UTC

}// 130/140

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KilledByAPixel

function u(t) {

t=t/2%1;x.textAlign = "center";for(X=400;X--;)x.font=t*400+"px a",x.fillStyle=R((1-t)*255,0,0,1),x.fillText("♥",X%20*99,99*(X/20|0)+t*65);

Apr 4 2019 4:00 PM UTC

}// 138/140

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Love for you. ♥

u/joeytwiddle

Love fades. ♡

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rodrigo.siqueira

function u(t) {

X=Y=0
for(c.width|=i=1e3;i--;){
X=X*C(2*t+Y*2)+Y/4
Y=C(X+Y+X+t/3)-S(i+X+t)/3
x.fillRect(960+X*820,540+Y*400,5,5)
}

Feb 4 2019 2:16 AM UTC

}// 114/140

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Interaction of live attractors

u/katkip

WOWWW #attractor AWESOME
u/donbright

WOAH