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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rodrigo.siqueira

remix of d/29141 by u/rodrigo.siqueira

function u(t) {

for(t?Y++:Y=0,X=3e3;X--;x.fillRect(X,Y-1,1,f(X/874-1.1,Y/500-1.1)))
f=(a,b,n=0)=>a?f(a*a-b*b+.31,S(a*b)*3+.1,n+1):(x.fillStyle=R(n/2,n,n),Y)

Dec 17 2023 1:25 PM UTC

}// 140/140

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Organic #fractal

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just_me_7k

function u(t) {

r=v=>v*Math.random()
x.fillStyle=R(r(512),r(252),r(140),.6)
x.fillRect(r(1920),r(1080),r(150),r(100))

Jun 18 2025 4:22 PM UTC

}// 101/140

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BalintCsala

function u(t) {

c.width=25
x.fillText("Hello",1.5,8)
d=x.getImageData(0,0,w=30,9).data
s=""
for(i=0;i<w*9;i++,i%w||(s+=`
`))s+=(d[i*4+3]>90)?"▮":"　"
throw s

Sep 1 2018 12:19 AM UTC

}// 140/140

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u/katkip

That's awesome!

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remix of d/1740 by u/Nick

function u(t) {

x.fillStyle=`hsl(${30*t} 99%50%`
x.fillRect(t%5*400-100,400+200*C(3*t),100,100)

Sep 10 2023 2:46 PM UTC

}// 79/140

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taupelink

remix of d/22842 by u/taupelink

function u(t) {

for(i=q=200;--i;x.fillRect(q*X,q*Y,-3*q*.6**t,-2*i*.7**t))f=97*i*t,X=f*f%99,Y=X*f%55,x.fillStyle=R(q%=i,q+=S(q/X)*i,q+=S(q%Y)*i,q/i/t)

May 24 2021 10:19 PM UTC

}// 134/140

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d/22857

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WasifBoomz

function u(t) {

c.width=t*5
x.strokeStyle=R(0,Math.random()*255,Math.random()*255)
x.strokeRect(35,15,S(t)*25.5,S(t)*25.5)
x.fillRect(35,15,S(t)*25,S(t)*25)

Feb 16 2019 3:43 AM UTC

}// 140/140

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joeytwiddle

remix of d/8414 by u/joeytwiddle

function u(t) {

t=9+t/5e2;for(c.width|=0,i=4e3;i--;x.beginPath())x.globalAlpha=.05,x.arc(S(i*i/1e4*t)*i/3+960,C(i*i/1e4*t)*i/4+540,i/30+2,0,7),x.fill()

Aug 1 2018 2:30 AM UTC

}// 135/140

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Eye of the storm #heavy

Show more comments…
u/aleamb

wow!
u/iverjo

This is so cool! Also, in fullscreen it looks like the innermost part of the storm is slowly rotating clockwise #opticalillusion
u/katkip

#storm #clouds
u/magna

This is nuts!
u/Xen

Love It!
u/lionleaf

Times out on my phone. We should increase the timeout limit somewhat
u/joeytwiddle

In the end, we did!
u/joeytwiddle

Many of the start points exhibit patterns, e.g. t=98.99+t/2e2
u/vain

WTF? Amazing!
u/joeytwiddle

This was a happy accident. I was drawing a spiral, and thought "What if the arms rotate with i*i instead of i?" Of course, this makes the outer points spin faster, and distributes the points semi-randomly.

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anilalur

remix of d/5243 by u/anilalur

function u(t) {

c.width=1920; /* clear the canvas */
for(i=0;i<1000;i++)
x.lineTo(i,600+i*S(2*3.141*50*i+t));
x.stroke();

Jan 2 2018 11:32 AM UTC

}// 105/140

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛁣𛡷𪑤𭁨𯀽𫀽𜠴𜀬𪐽𜱥𝀩𛁸𛡦𪑬𫁓𭁹𫁥👠𘱦𜀰𜱠𞱩𛐭𞱸𛡦𪑬𫁒𩑣𭀨𦀬𦐬𬰽𚀸𚱓𚁓𚁰👍𨑴𪀮𨑴𨑮𜠨𨐬𨠩𚱤𚠪𛠲𝐩𚡤𛱬𚐪𤰨𠰨𬀩𚡤𛰹𚱃𚁴𚐪𝐰𚐪𞀩𛁳𚐩𩀽𚁡🐹𝠰𛐨𦀽𪐥𫀪𞐩𚐪𚠲𛱬𚰨𨠽𝐴𜀭𚁙🐹𚡩𛱬𚐩𚠪𜠯𫀻`.replace(/u../g,'')))

May 5 2023 6:13 PM UTC

}// 140/140

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I'm saddened that I didn't notice the white space at the bottom, before I posted this and viewed it in dark mode ;/ oh well.

u/Joachim

Looks like an #illusion
u/Xen

love it!

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katkip

function u(t) {

eval(atob("eC5maWxsU3R5bGU9J3JlZCc7eC5hcmMoOTYwLDU0MCwyOTQuMjExNTUxOTkxNDY1OTk5MTYyMjM2NDEyNjQxMjI2MzYyMzQ4NTc3MTg1MTgsMCw3KTt4LmZpbGwoKQ"))

Sep 23 2018 4:59 PM UTC

}// 140/140

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Japan

u/BalintCsala

That's an oddly specific radius
u/BirdsTweetCodersDweet

Yeah, what is that radius...