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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zox

function u(t) {

w=c.width|=i=99;while(--i)x.arc(w/2,w/4,4*i,(i*t)/9,(i*t)/9);x.stroke();

Feb 5 2020 12:12 AM UTC

}// 72/140

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Hypnotic spirals // wait for it

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Sapazu

remix of d/5312 by u/Sapazu

function u(t) {

r=127.5;h=r+r*S(t/3);m=r+r*S(t/4);l=r+r*S(t/5);x.fillRect(900*S(t*5+t/25)+910,490*S(t*10+t/50)+490,100,100);x.fillStyle=R(m,l,h);

Jan 3 2018 11:59 AM UTC

}// 129/140

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rodrigo.siqueira

remix of d/33595 by u/rodrigo.siqueira

function u(t) {

for(i=4e4;i--;){
r=S(i*i/t)+S(i)**2
X=r*C(k=i/11)*1540
Y=r*S(k)*1400
Z=r*C(S(i*.1))*6-.2
x.fillRect(960+X/Z,540-Y/Z,.14,t<1)}

Apr 14 2025 12:28 PM UTC

}// 125/140

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sym-22

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KilledByAPixel

remix of d/13273 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁼🐰𞱷𪑴𪀨𮀩𩡯𬠨𩡯𫡴🐢𝰴𩑭𘁩𫑰𨑣𭀢𛁴𬡡𫡳𫁡𭁥𚀰𛀱𩐳𚐬𬡯𭁡𭁥𚁓𚁴𚠴𞐩𚠮𜀱𚐬𩡩𫁬𥁥𮁴𚀢𤱐𡑅𡀢𛀹𛀰𛀱𞐰𜀩𛁦𪑬𫁓𭁹𫁥🐢𘱆𡡆𝠢𛁩🐲𩐳𞱩𛐭𞰩𩡩𫁬𤡥𨱴𚀨𤰨𪐩𚠱𩐹𛐳𞐪𭀪𚀹𞐫𪐯𞐩𚐥𝁥𜰭𝐰𜀬𛑩𚠹𙐱𩐳𛀵𜀰𛁩𙐱𞐩`.replace(/u../g,'')))

Jun 25 2019 7:47 PM UTC

}// 140/140

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𝙎𝙋𝙀𝙀𝘿

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taupelink

remix of d/19629 by u/taupelink

function u(t) {

r=Math.random;f=(x,n=4)=>n?x+C(f(x/n,n-1)):1;for(i=1e3;i--;x.fillRect((X+f(Y)/9)*30,(Y+f(X/12))*17,f(X+Y)>f(X),f(X&Y)<1))X=r()*64,Y=r()*64

Aug 12 2020 9:38 PM UTC

}// 138/140

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d/19668

u/taupelink

NB There are easier ways to create a Sierpinski-like figure!

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BirdsTweetCodersDweet

remix of d/7903 by u/BirdsTweetCodersDweet

function u(t) {

for(c.width|=i=450;i--;)x.fillStyle=`hsl(${t*i%200},50%,50%)`,x.fillRect(50*(i%40),(i/40|0)*99+(i%2)*50,C(t)*50-S(t),50)

May 3 2018 11:22 PM UTC

}// 120/140

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Better colours and full rows :D

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hope4tg

remix of d/8253 by u/hope4tg

function u(t) {

x.font='3em x';for(i=240;i--;x.fillText('■',i*8,(t*5|0)*8))x.fillStyle=R(l=(S(i/10)*(t*S(t)-t*t)%5/5)*255,(l+128+(t*4))%255,0)

May 29 2018 9:36 AM UTC

}// 126/140

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Alien art

u/hope4tg

#weird
u/S.T.L.K.R.

Alien embrio generator

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katkip

function u(t) {

c.width*=1;for(i=9;i--;)for(j=9;j--;)x.fillRect(400+i*100+S(t)*300,400+j*24+S(i+t)*30,50,15)

Jan 11 2019 1:50 PM UTC

}// 92/140

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#default made of defaults

u/joeytwiddle

Defaultception! What if those defaults were also made of defaults?

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taupelink

remix of d/18769 by u/taupelink

function u(t) {

f=(X,Y)=>Y?f(Y,X%Y):X;for(i=1e3;i--;){z=Math.random()*3e5|0;g=f(a=z%192,b=z/192|0);if(g>5){x.fillText(g,10*a,10*b)}}

May 14 2020 11:26 AM UTC

}// 116/140

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d/18774

u/taupelink

GCD(X,Y) plotted, if greater than 5
u/BuRRak

It looks like characters of some ancient script, nice!

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DataMeta

function u(t) {

c.style.background=R(g=S(t*1.5)*255,g,g);if(t<3)for(i=1920;i--;)
x.fillStyle=R(l=i/7.5,l,l),x.fillRect(i,540-C(t)*i/5,13,13)

Sep 28 2019 4:17 PM UTC

}// 124/140

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Had this laying around. Demonstrates the #illusion in d/15823. The triangle's #gradient remains unchanged.

u/DataMeta

The center of the base of the triangle doesn't exhibit the illusion strongly since there is a constant reference color near it and it is far from the changing background.
u/iverjo

#opticalillusion