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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tomru

function u(t) {

c.width=1920
for(i=1;i<95;i++){
x.fillStyle=R(C((t-(i%20)))*255,C((t+(i%20)))*255,.2*255,1)
x.fillRect(i*20,1080/2,15,500*C(t)*S(i/6))}

Apr 9 2019 9:14 PM UTC

}// 135/140

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my first try

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Xen

remix of d/21153 by u/lowpoly

function u(t) {

for(i=199;i--;x.fillRect(S(t+i*(t/2|8))*2e3,9,s=19,s,x.fillStyle=`hsla(${i*9},99%,50%,.3)`));x.drawImage(c,0,s)

Jan 5 2021 11:14 PM UTC

}// 111/140

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Golf & Play

u/Xen

#waitforit

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donbright

remix of d/2001 by u/jonbro

function u(t) {

W=(p)=>(p<0?-p:p)%256
for(i=1920;i-=16;)for(j=1080;j-=12;)p=C(t/3)*i*i+S(t/9)*j*j,x.fillStyle=R(W(p/5),W(p/9),W(p/3)),x.fillRect(i,j,16,12)

Mar 10 2017 1:25 AM UTC

}// 139/140

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remixing jonbro and netgrind 's use of color in circle / square style patterns. added some hyperbolas. longer you stare at this the weirder the patterns get - it doesnt' repeat for quite a long time

u/SpecialAgent

This is very hypnotic

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tomxor

remix of d/15329 by u/tomxor

function u(t) {

for(a=b=0,i=1e4;i--;x.fillRect(a*2880-480,b*2880-960,1,1/(4+t)))
p=3.14,r=0|2*Math.random(),
a+=.2*(r-a*S(b*p+C(a*p+C(a*p)))),
b+=.4*(r-a*b)

Aug 9 2019 4:40 PM UTC

}// 140/140

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Sand

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taupelink

remix of d/25032 by u/taupelink

function u(t) {

eval(unescape(escape`景爨欽㘴ㄬ洽琿〺㙥㌻洭ⴻ砮獴牯步⠩⥩㵭╫⼵ⱘ㵭⨪㐯㐥欬砮扥杩湐慴栨砮獴牯步却祬攽刨樽椫椪匨洩⨵ⱘ╪Ⱪ⼮㘬洯ㅥ㐩⤬砮汩湥坩摴栽匨堯㈰⭭⤪椬砮慲挨堪㌬欭椪匨洩Ⱘ洭椩⼸〬洬洭⸲⵭┹⼳⤠`.replace(/u([^D].)/g,'$1%')))

Mar 3 2022 2:44 AM UTC

}// 140/140

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d/25066

u/danny@hille.dk

Surf at sunset
u/danny@hille.dk

Live it!
u/danny@hille.dk

... love it...
u/andrea270872

terrific. reminds me of the cover of certain SCI-FI books!

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iznax

remix of d/17626 by u/iznax

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁸𛡦👦𪑬𫁒𩑣𭀬𭰽𨰮𭱩𩁴𪀽𜠰𜀬𪐽𜀻𪐼𜠴𞱰👲𙐱𚡷𛁦𚁲𙠱🱷𛑰𞡰𛀡𘑩𚠹𚰸𚡾寿𙐱𜐲𛁩🰷𞡷𛁩🰷𞡷𚐬𩡩𫁬𤱴𮑬𩐽𘠣𜁦𜀢𛁦𚀹𞐫𤰨𪐾🠱𚐪𞐹𚱩𛰲𛀲𝀫𪐪𜰬𜰭𪐦𜰬𜠩𛁦𚀹𞐫𤰨𪐫𭀦𜰩𚠹𛁔𚀫𚱩𛑴𚐪𭰬𛠵𛀹𚐩𬠽𘐡𪐪𭀭𪐯𜠵`.replace(/u../g,'')))

Feb 15 2020 5:11 AM UTC

}// 140/140

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Centipede on Black w/o Score?

u/tomxor

My favorite classic :) I made a functional one once but could never quite get it down to size.
u/katkip

#retro
u/KilledByAPixel

🐛

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pavel

function u(t) {

with(x)for(c.width|=k=320,scale(9,9);--k;arc(107,60,16*(k>>5)+16/(1+1e5**(.5+k%2-t%2)),a=(t/2-k)%11*.571,a))k%2&&beginPath(stroke())

Nov 26 2018 7:23 PM UTC

}// 132/140

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Walking Spiral #beesandbombs

u/pavel

Using scale(9,9) to get thick lines and shave some digits from coordinate numbers (e.g. 60 vs 540 for height)
u/pavel

x.arc(X,Y,r,a,a) = x.lineTo(X+r*C(a),Y+r*S(a))
u/katkip

Duuude
u/katkip

Awesomeee

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pythech

remix of d/8364 by u/BirdsTweetCodersDweet

function u(t) {

for(c.width|=i=1e3;i--;)x.fillRect(S(t+i*((~t)/10))*i+960,i,W=i/9+2,W)

Jun 4 2018 1:54 AM UTC

}// 70/140

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UEZ

remix of d/36506 by u/UEZ

function u(t) {

eval(unescape(escape`堽昽挽㹓⡍慴栮瑡湨⡣⨨搽爾ㅼ籲ⴱ⸵⤪㘩⤬夽琯㠭ㄮㄲ㭦潲⡩㴲攳㭩ⴭ㬩爽⡘⩘⭙⩙ⴱ⤪⨲⨵ⱸ⹦楬汒散琨椬琪㘰Ⱘ眽⠭ㄫ昨堽椯㐸〭㈩⩦⡙⤩⼲⸵Ɽ㸰㽷㨨眪㘮㤫ㄩ⨨爼⸱㐦夼⴮ㄳ㽲⨷⬮〵㨮㤩⤬㌩`.replace(/u([^D].)/g,'$1%')))

Oct 16 2026 9:59 PM UTC

}// 140/140

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#Glas #Ring #Raytraced

u/UEZ

#slowdraw #waitforit
u/UEZ

#glass

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KilledByAPixel

remix of d/19823 by u/KilledByAPixel

function u(t) {

c.style.filter='invert('
t||x.scale(s=16,-s)
x.fillText(code.split`
`[t*60|0],s,t*1e3-56)

Aug 19 2025 3:22 AM UTC

}// 89/140

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Through a Dweet Darkly ⬛ #quine