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

4uffin

function u(t) {

const x=c.getContext('2d');let n=0;x.font='99px serif';
(f=()=>{x.clearRect(0,0,9e2,9e2);x.fillText(++n,0,99);requestAnimationFrame(f)})()

Jan 9 2026 8:12 PM UTC

}// 138/140

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

Counting numbers

show FPS hide FPS share fullscreen

New_Core

function u(t) {

t||(a=new(AudioContext)(),o=a.createOscillator(),o.connect(a.destination),o.start(a));t%.2>.1?b=Math.random()*1000|0:o.detune.value=b

Mar 3 2017 12:01 PM UTC

}// 133/140

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

Remove a from o.start(a) .... this one is based on iverjos small size version.

u/13thptr

#audio

show FPS hide FPS share 1 remix fullscreen

khalkeus

function u(t) {

w=960;h=540;c.width=w*2
for(i=0;i<99;i++){for(j=0;j<99;j++){
x.fillRect(S(i-j)*C(t+j)*w+w,S(i+j)*S(t+j)*h+h,5,2)}}

Feb 24 2017 10:38 PM UTC

}// 114/140

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

u/Purpzie

Shaved off 12 characters: for(c.width|=a=0;a<9801;)x.fillRect(S((i=0|a++/99)-(j=a%99))*C(b=t+j)*960+960,S(i+j)*S(b)*540+540,5,2)

show FPS hide FPS share fullscreen

taupelink

remix of d/20764 by u/taupelink

function u(t) {

r=Math.random;for(i=k=128;i--;x.fillRect(2*k*X,k*Y,1,k/t))X=r(Y=r()*9)*8,h=k*S(Y%(m=4*S(p=X*Y%(3*S(X*X-Y*Y/4))))),x.fillStyle=R(h*p,h*2,h*m)

Nov 21 2020 11:44 PM UTC

}// 140/140

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

d/20773

u/taupelink

Kind of a peacock-like pattern...I cut the rectangle width to 1 to fit within 140 chars, so you have to #waitforit
u/DataMeta

oooh nice one

show FPS hide FPS share fullscreen

New_Core

function u(t) {

c.width|=0;x.translate(960,540);for(i=20;i--;x.rotate(t*.1))x.rect(a=-100-i*15+100*S(t+i/5),a,-a*2,-a*2);x.fill('evenodd')

May 18 2017 8:02 AM UTC

}// 122/140

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

u/donbright

excellent
u/lionleaf

woah!
u/Xen

nice :)

show FPS hide FPS share fullscreen

metamero

remix of d/11785 by u/metamero

function u(t) {

i=(t-2)*2|0
x.fillStyle=i^4&i?i>4?R():'#F7A8B8':'#55CDFC'
i^2&&x.fillRect(0,216*i,2e3,216)
x.fillText((x.font='499px ⚧')[6],766,716)

Jan 29 2019 4:10 PM UTC

}// 132/140

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

Dia da Visibilidade Trans #pride

u/metamero

today is Transgender Pride Day on Brasil

show FPS hide FPS share fullscreen

DeathBoy

function u(t) {

c.width=1920;
  for(i=0;i<2000;i++)
  x.fillRect(-100+i*4+S(t+i), 500+S(t+i)*600, (S(t+i*2/3+i))+S(t/10+i)*195, S(t/4)*100)

Jan 4 2018 3:59 PM UTC

}// 123/140

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

Just some interference patterns, a first scribble :)

show FPS hide FPS share 3 remixes fullscreen

pavel

function u(t) {

for(c.width|=i=100;i--;)
for(j=50;j--;)
s=20*S((i|j)-t/2)**20,  // Then a miracle occurs
x.fillRect(10+20*i-s/2,10+20*j-s/2,s,s)

Oct 31 2018 3:37 AM UTC

}// 128/140

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

#sierpinski

u/joeytwiddle

Transient overlapping Sierpinskis. Lovely.

show FPS hide FPS share fullscreen

SuperFromND

remix of d/10172 by u/Purpzie

function u(t) {

c.style.filter='invert(1)'
for(c.width|=i=0;i<999;i++)x.fillStyle=R(i/5,i/5,i/5),x.fillRect(C(i)*(a=i*C(t*i/9e2))+969,S(i)*a+550,C(i)*2e3,1)

Oct 12 2018 7:51 AM UTC

}// 140/140

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

[ the eye is watching ]

show FPS hide FPS share fullscreen

Batrachus

function u(t) {

a=1920
c.width+=0
x.fillRect(0,0,a,a)
for(i=0;i<a;i++){e=2+C(i*i)
d=(t+9)*e*a/30
x.clearRect((S(i)*a+d)%a,(T(i)*a+d*4)%a,3*e,3*e)}

Feb 26 2018 5:29 PM UTC

}// 130/140

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

u/UEZ

#snowfall