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

Please log in (or register) to post a dweet (copy-paste the code somewhere safe to save it meanwhile)


    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

show FPS hide FPS share fullscreen

durianp

function u(t) {

c.width=1920;x.translate(960,540)
for(i=24;i--;x.rotate(t/3)){a=Math.random()*t*3;x.font=19*t+'px sans';x.fillText('🤣👉',i*t+a,2*i*t+a*2)}

Mar 13 2024 10:13 AM UTC

}// 137/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

what a joke

show FPS hide FPS share fullscreen

Qwitter

function u(t) {

l=20;c.width=1920;for(p=-2;p<3;p++){for(j=0;j<99;j++){x.beginPath();k=j%2;x.arc(810+p*240*S(t/4)+l*k,540,j*l,3.14*k,3.14*(k+1)),x.stroke()}}

Jan 21 2018 3:12 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

show FPS hide FPS share 1 remix fullscreen

tzador

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁼🐰𒡗🐲𜀰𒡦𫱲𚁚🐱𜀻𦠻𦠭🐮𝐩𩡯𬠨𦀽𝀰𞱘𛐭🠭𝀰𞰩𩡯𬠨𦐽𝀰𞱙𛐭🠭𝀰𞰩𒡩𩠨𚁘𚱙𚐥𜠩𮀮𩡩𫁬𤱴𮑬𩐽𤠨𝐰𚡚𛀵𜀪𦠬𝐰𚡚𚐬𮀮𩡩𫁬𤡥𨱴𚀨𦀫𠰨𜠪𭀩𚐯𦠪𥰬𚁙𚱓𚁴𚐩𛱚𚡗𛁗𛱚𛁗𛱚\uD829`.replace(/uD./g,"")))

Feb 4 2025 12:37 AM UTC

}// 128/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

show FPS hide FPS share fullscreen

sparrow

function u(t) {

c.width=1920
for(i=-9;i<9;i++){
p=i*3+C(t)
for(j=0;j<21;j++){
x.beginPath()
x.arc(i*50+900,p*p*p*C(j+t)*.01+500,S(j)*5+5,0,7)
x.stroke()
}
}

Jul 15 2023 4:22 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

waves

show FPS hide FPS share fullscreen

Purpzie

remix of d/10110 by u/Purpzie

function u(t) {

r={valueOf:Math.random}
x.fillStyle=`hsl(${t*100} ${25+r*75}%${25+r*25}%)`
x.fillRect(r*2e3,r*1e3,r*500,r*500)

Sep 27 2018 1:14 PM UTC

}// 110/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

generative art

u/Purpzie

I ended up having to remove the bit that makes everything slowly fade away, but it still looks neat.

show FPS hide FPS share fullscreen

Foldster

function u(t) {

s=S(t)
o=C(t)
c.width=1920+200*s
for(k=.01;k<1;k+=.01){
i=k%1
j=k*9%1
i=s+2*i-j-o*i*j
j=o+s*i+j-2*s*i*j
x.fillRect(800+i*300,(3+j)*150,8,8)}

May 24 2020 4:13 AM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

In the Breeze

show FPS hide FPS share fullscreen

tactical_retard

remix of d/23593 by u/tactical_retard

function u(t) {

Y=60*t
for(X=w=h=2e3;X--;){
a=(X-1250)/(q=w/4)
b=(Y-q)/q
r=j=0
for(i=50;i--;)t=r,r=(t*t-j*j)+a,j=(2*t*j)+b;r*r+j*j<4&&x.fillRect(X,Y,1,1)}

Aug 19 2021 7:17 PM UTC

}// 138/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

mandelbrot set

show FPS hide FPS share 1 remix fullscreen

gunno

function u(t) {

c.width|=0;
for(i=2e4;i--;)x.fillRect(S(t+i)*(200*S(i**3)+(S(i**3+(C(i)*0.4))**2e3)*500)+960,540+C(i**3)*200,3,3)

Aug 22 2025 12:44 PM UTC

}// 113/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

u/joeytwiddle

If you want a black background, add c.style.filter='invert(1)'
u/joeytwiddle

#space #planet
u/joeytwiddle

Or two characters smaller: x.fillRect(0,0,2e3,2e3) and clearRect later
u/joeytwiddle

This dweets reminds me of d/10534

show FPS hide FPS share 1 remix fullscreen

KilledByAPixel

function u(t) {

for(i=240,t?t=t*60|0:c.width=i;i--;)x.fillRect(i,t,1,S(((i%32-16)**2+(t%32-16)**2<99?(t>>5)*32+i%32:t)**9)**2)

Nov 10 2024 7:20 PM UTC

}// 110/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

The Coffer Illusion 🧐

u/cantelope

#coffer #cofferillusion
u/cantelope

i have seen this, not sure who made it here
u/fentbiggesthater

same ive seen it too, stolen?, can we get a moderator to check this out✌💕😁
u/KilledByAPixel

i dont think there is a dweet for it, but it is a very well known illusion

show FPS hide FPS share fullscreen

artfarnaa

function u(t) {

for (c.width|=a=284;--a;x.arc(960+S(t+G*40)*260,
 540+C(t+G*40)*260,a%4*182*Math.abs(S(t/2)),
 0,8))x.moveTo(G=a/2|0,0)
 x.fill('evenodd')

Oct 13 2017 11:04 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Best if viewed full screen

Show more comments…
u/cantelope

mandala!
u/joeytwiddle

very pretty :)
u/artfarnaa

Any ideas how to add color to these Mandala animations?
u/cantelope

an attempt at a colorized version https://codegolf.tk/a/203
u/artfarnaa

Nice. Also tried moving the fill inside the loop but only called it once every 100 times are so, otherwise it locks up the browser.
u/donbright

love these