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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Xen

remix of d/6334 by u/BackendForth

function u(t) {

c.width|=w=33
v=(i,j)=>x.lineTo((i+j)*w,w*j+S((i*i*j*j)**.4+t*9-i+j)*w)
for(i=w*w;i--;x.fill(v(a,j-1)))x.beginPath(),v(a=i%w,j=i/w),v(a-1,j)

Jan 22 2018 4:11 PM UTC

}// 140/140

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try angles.

u/sigveseb

sweet
u/donbright

kewl

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iverjo

remix of d/50 by u/iverjo

function u(t) {

k=260;c.width=2e3;for(i=9;i++<5*k;)p=t+i/k+i%8*5,s=3/(10-p%9),x.beginPath(),x.arc(79*T(p*S(t/9)+1)+i%8*k,550*s,49*s*S(i/k),i,i+7),x.stroke()

Jan 14 2017 4:28 PM UTC

}// 140/140

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u/hamptonio

Its like a C.elegans dance party.
u/CliffJonesJr

Leeches!!!

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remix of d/1934 by u/Niklas

function u(t) {

a=600,M=Math,x.lineTo(960+a*C(t)-a*M.pow(S(t),8)/M.sqrt(2),540+a*C(t)*S(t)),x.stroke();

Feb 8 2024 11:38 AM UTC

}// 87/140

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u/KilledByAPixel

hey ms, welcome to dwitter! i noticed your second dweet was just showing an error so i removed it. please try to avoid posting broken dweets

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jes5199

function u(t) {

g=new Float32Array(1);t*=60;for(b=1080;b;b--){c=(t-960)*3;d=(b-540)*3;v=c*c+d*d;g[0]=v;v-g[0]>0?x.fillRect(t,b,1,1):0}

Mar 8 2017 7:23 PM UTC

}// 118/140

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u/donbright

thats pretty cool looking

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DazeWare

function u(t) {

c.style.filter="blur(1vh)"
c.width|=0;x.scale(23,23);for(i=96;i--;)for(j=54;j--;)if(t*(g=.1))x.fillRect(i+S(j/g),j+S(t*j/i/g),z=.9,z)

Oct 28 2022 10:05 PM UTC

}// 133/140

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TGY

remix of d/22330 by u/Xen

function u(t) {

for(i=2e3;i--;x.fillRect(i,99+t*99+a*99,9,5))
x.fillStyle=R(l=15*t+40,l,2*l+30*(a=C(i/193+t-S(-t))))

Sep 12 2021 8:26 PM UTC

}// 100/140

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#windows11

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marc8

function u(t) {

x.fillStyle=R(0,0,0,.4)
x.fillRect(0,0,1920,1080-t/3)
for(i=400;i--;)
x.clearRect(i*(3+S((t+i)/15)*2)*5,C(i)*t%5*350,z=(S(i)+4)*3,z)

Jan 26 2018 10:46 PM UTC

}// 132/140

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Look mum! Snow is piling up on the ground!

u/41407

That is so cool!
u/Jezza

Clever!

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NiVZ

function u(t) {

s=12;π=6.2831;w=960;h=540;r=t*220%960;for(i=0;i<s;i++){x.fillStyle=`hsl(${i/s*360},100%,50%)`;a=(i-t)/s*π;x.fillRect(S(a)*r+w,C(a)*r+h,9,9)}

May 28 2026 5:19 PM UTC

}// 140/140

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Rainbow Spirals

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Agnes

function u(t) {

w=c.width+=i=0;w/=2;h=c.height/2;for(i;i<h;i++){d=i/h;for(j=i;j<h;j+=25,f=j/h,q=t*f*d,x.fillRect(w*(1+d*S(q*t)),h*(1+d*C(q*t)),q,q));};

Jan 30 2018 1:40 PM UTC

}// 135/140

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u/donbright

excellent... really takes a turn away from the usual swirly dweet after a little while

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rodrigo.siqueira

remix of d/33800 by u/rodrigo.siqueira

function u(t) {

x.fillRect(0,0,i=7e3,i),x.globalAlpha=.05
for(;i--;x.clearRect(960+C(k=i/3)/Z,S(k)/Z+610,2,3))
Z=S(i/(4-(~(t/2)%2)))/140-T(i/(t%5))/2e3

May 16 2025 8:43 PM UTC

}// 135/140

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Phase transition 3-6