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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

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Calada2

function u(t) {

a=500
b=540
x.beginPath()
x.lineWidth = 22
x.moveTo(S(t)*a+960,C(t)*a+b)
x.lineTo(S(t*2)*a+960,C(t*2)*300+b)
x.stroke()

Apr 23 2020 9:43 PM UTC

}// 119/140

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#circlechallenge The cardioid way

u/donbright

creative

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katkip

remix of d/4221 by u/Yax

function u(t) {

c.width|=0
a=300
for(i=a;i--;)
b=t/2+i,x.fillStyle=R(a,b),x.fillRect(i*7,700+a*C(C(b)),25,a/t),x.fillRect(a*5+i/T(b),a+i*S(b),25,25)

Jul 31 2018 12:49 PM UTC

}// 132/140

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Now your world is reversed

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joeytwiddle

remix of d/7597 by u/joeytwiddle

function u(t) {

for(c.width|=i=192;i--;x.fillRect(940+n*9*S(a=i%6*1.04+S(p)/5+t),520+n*9*C(a),n,n))n=((j=i/6)%16)**2/5,x.globalAlpha=.5+C(p=j*.6+t*6)/2

Apr 7 2018 6:14 PM UTC

}// 135/140

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Spiral starfish. Change +t to -t and watch its feet

u/joeytwiddle

Dropped a for thanks to u/New_Core

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mathisvdr

function u(t) {

c.style.filter=`invert()`;for(i=836;i--;x.fillRect(i%38*50+5,~~(i/38)*52+2,45,45))x.fillStyle=`hsl(${S(i%38/4+t)*99+S(i/152+t)*99},99%,50%)`

Feb 28 2026 5:44 AM UTC

}// 140/140

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Plasma Wave

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mrfoogles

function u(t) {

t+=C(t*S(t+T(t)))
for(i=9;i--;)
x.fillRect(i*100+S(t)*1e3,0,50,Math.abs(S(t))*1080) // draw 50x200 rects

Jan 22 2022 4:20 AM UTC

}// 104/140

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Pyramid! I think the "t+=S(t)" is useful.

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marquisdegeek

function u(t) {

eval(unescape(escape`󣜽󭌿󣜫󜜺󜌊󩭯󬬨󦜽󡬽󜬵󝜻󛜭󦜻󚝦󫽲󚍘󟝆󞽸󛭦󪝬󫍒󩝣󭌨󦌪󞌬󦜪󝜬󞌬󝜩󛌭󛝘󞼩󒭦󫽲󚍣󟜰󛍄󟜹󞼡󨼻󚼫󡌩󭬽󦌭󡌬󮌮󩭩󫍬󤽴󮝬󩜽󨼽󭬼󜌿󒬨󚌨󦜪󡌦󡬩󚽙󚽘󙭆󚜽󟜰󚜿󤬨󡬬󡬬󡬩󞭒󚍃󛍙󛍙󚜊󞬨󢼽󚍙󚭄󟬾󞍼󭬪󡌾󟬸󚜦󡌫󣜬󢼦󜜶󟽒󚍋󚬽󝌬󢼬󢼩󞬰󚜊`.replace(/u../g,'')))

Feb 23 2025 11:58 AM UTC

}// 139/140

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No credit to me. This is simply a golf'd version of "Starpath" by HellMood / Desire. https://demozoo.org/productions/367702/

u/marquisdegeek

I suddenly realised why my dwitter version ran slower than the one I wrote in my staging environment, and fixed it!
u/marquisdegeek

I suddenly realised why my dwitter version ran slower than the one I wrote in my staging environment, and fixed it!
u/marquisdegeek

https://www.dwitter.net/d/33418

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remix of d/2535 by u/magna

function u(t) {

t||(g=(n=c.cloneNode()).getContext`webgl`)
with(g)clearColor(0,S(t),C(t),1),clear(16384);
x.drawImage(n,0,0)

Jul 24 2020 5:14 AM UTC

}// 108/140

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safer for editing #webgl

u/IV

manga's original is grand, this is safer than my previous attempt in terms of editing and not getting errors which cause a reload :)
u/IV

the prblem with this is that youd have to clear both contexts which costs more bytes

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3bl3gamer

function u(t) {

c.width=192;f=a=>{x.translate(96,54);x.beginPath();for(i=0;i<7;i+=.005){r=(T(i*3+t*2)*3+20)*2;x.lineTo(r*C(i),r*S(i))};x.stroke()};f()

Jul 19 2016 9:30 PM UTC

}// 134/140

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lewdev

remix of d/28637 by u/lewdev

function u(t) {

[o,p]="⚫⚪"eval(unescape(escape`੣⹷楤瑨㴱㈰㭛㌶攲ⰶ〬ㄬ⸱崮浡瀨⡵Ⱪ⤽㸨瘽琾㵵㽾縨琯甩㨰ⱴ┽甬砮晩汬呥硴⡶⹴潓瑲楮木㈩⹰慤却慲琨㘩⹳灬楴恠⹭慰⡡㴾愽㴱㽯㩰⤮牥癥牳攨⤮橯楮恠ⰱ㤬ㄴ⭩⨱㔩⤩`.replace(/u([^D].)/g,'$1%')))

Oct 28 2023 2:14 AM UTC

}// 138/140

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⏲ #binary Running #timer #clock w/emojis (updated)

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yonatan

remix of d/10782 by u/yonatan

function u(t) {

for(i=c.width=99;i--;T=(j,t)=>S(j*j+i/j-t*7)+C(j**5-i/j*7+t)**3)for(k=j=56;j-->-k;x.fillRect(i,a,1,(j>0)*T(j,t)*j/k-q*q))q=T(a=j/2+30,0)/j*2

Oct 31 2018 11:54 AM UTC

}// 140/140

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Show more comments…
u/katkip

i love your #realistic design
u/jylikangas

YES!
u/aleamb

OMFG!
u/yonatan

:O https://twitter.com/aemkei/status/1057749002…
u/lionleaf

#landscape #water #mountains #real
u/sigveseb

Full-on insanity
u/iverjo

So good!
u/katkip

#d3
u/joeytwiddle

#scene
u/vain

beautiful work! titanic, iceberg ahead
u/jdspugh

Amazing!