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/33571 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert(1`
for(i=9100;i--;){
r=S(i/t)
X=r*C(k=i/3.5+r*2)*960
Y=r*S(k)*930
Z=r*C(S(i))%1+3
x.fillRect(960+X/Z,540-Y/Z,.1,t<5)}

Apr 9 2025 2:36 PM UTC

}// 140/140

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Double star shell

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geb

remix of d/12491 by u/rodrigo.siqueira

function u(t) {

t||(a=b=1)
for(i=2e3;i--;)x.fillStyle=`hsl(1,42%,${S(t*5)*50}%,42%)`,x.fillRect(960+(b-=.0004)*S(a+=1),540+b*T(a/1e2),2,2)

Feb 23 2019 5:01 PM UTC

}// 122/140

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into tangent

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Xen

function u(t) {

x.drawImage(c,C(t*9),4)
for(i=2e3;i--;x.fillStyle=`hsl(${(((i*i&(t*55*i/9)&i)%666+t*t)*t)%165} 50%50%)`)x.fillRect(i,1,1,9)

Jul 22 2023 6:14 PM UTC

}// 123/140

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instructed GF to write first dweet, Enjoy!, let you all decide a name.

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taupelink

remix of d/36568 by u/taupelink

function u(t) {

for(m=t?0:3e4;X=C(m),Y=S(m*m--);x.fillRect(900*++X-q,810-q*Y,3*q,i-q))i=m%224+32,x.fillStyle=R(q=i+S(Y>0?m:Y)*i,i-=q*Y,q*=3-C(m),18/(5*q+i))

Oct 28 2026 1:42 PM UTC

}// 140/140

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d/36570

u/UEZ

smooth

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vgel

remix of d/24043 by u/vgel

function u(t) {

eval(unescape(escape`𮁛𩰽𙱦𪑬𫁒𩑣𭀧𧐨𪐽𜀬𜀬𨠽𜡥𜰬𨠬𮁛𩠽𙱦𪑬𫁓𭁹𫁥𙱝👒𚀰𛀰𛀰𛁱🐮𜀱𚐩𒡸𦱦𧐽𙱧𫱬𩀧𒡦𫱲𚀻𪐼𝁥𝀻𚑸𦱧𧐨𫠽𭑛𚰫𪑝🰿👩𙐲𩐲𚠱𜀬𫐽𭑛𚰫𪑝🰿👩𛰹𛀵𛀵𛁤🐨𤰨𫠪👱𚐫𤰨𫐪👱𚐩𚡓𚁴𛰲𚐬𭑛𪐭𜑝𛐽𩀪𠰨𫠩𛁵𦱩𧐭👤𚡃𚁭𚐩`.replace(/u../g,'')))

Oct 11 2021 9:33 PM UTC

}// 136/140

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differential fireworks

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rodrigo.siqueira

function u(t) {

!t&&(c.outerHTML=`<b contenteditable onInput=localStorage.T=this.innerHTML>${localStorage.T||"Text editor. Type here, content is saved."}`)

Jun 3 2020 4:26 PM UTC

}// 139/140

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Text editor with auto-save. Type and reload (or come back later). Your edits are stored in this Dweet.

u/rodrigo.siqueira

Shortcuts: control-b (bold), control-i (italic), control-u (underline). You can even paste html in this Dweet.
u/katkip

wow
u/rafroller

So cool ! Nice use of localStorage :)
u/sigveseb

Cool, didn't know that you could do bold, italics etc like that in contenteditable

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katkip

function u(t) {

x.globalAlpha=.01;t/=9;for(i=50;i--;)for(j=50;j--;)x.fillStyle=R(i*5,0,j*5),x.fillRect(960+C(i+t)*j*999/j,540+S(i+t*i)*999/j,20,20)

Jan 29 2019 6:01 PM UTC

}// 131/140

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Energy Ray

u/mxfh

with alpha R it's down to 117, or is there a visual difference?
u/katkip

Idk, random coding

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KilledByAPixel

remix of d/15572 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`睩瑨⡸⥦潲⡣⹷楤瑨簽〬晩汬剥捴⠰ⰰⰲ攳ⰲ攳⤬杬潢慬䍯浰潳楴敏灥牡瑩潮㴧獣牥敮✬景湴㴧㤰敭∧Ⱪ㴳㭩ⴭ㭦楬汔數琨❃䡒位䅔䥃✬㐹⭩⨹ⰱ〲〬ㄸㄵ⤩晩汬却祬攽恨獬⠤筩⨱㈰⭴⨱㥽‹㤥㔰╠`.replace(/u(..)/g,"$1%")))

Aug 29 2019 9:56 PM UTC

}// 135/140

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Chromatic aberration v2

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DazeWare

function u(t) {

c.width=w=99
for(i=w*33;i--;x.fillRect(i%w,i/w*2,t,9))f=i%w+999*S(t*.009),n=T(0|(i/w+f^f-i/w)/(9)),x.fillStyle=R(i**t,(i)<<n)

Nov 1 2025 7:17 PM UTC

}// 125/140

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danny@hille.dk

remix of d/21523 by u/danny@hille.dk

function u(t) {

w=c.width=128;for(i=1e4;i--;)x.fillRect(X=i%w,Y=i/w|0,Math.min(s=Math.hypot(X-64-
C(t)*40,Y-36-S(t*1.2)*28)/16,.4/((X^Y)%7)),s)

Jun 2 2023 9:45 PM UTC

}// 127/140

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bump mapping remix

u/Joachim

Really nice #lighting
u/@noel

Beautiful. I need to dig into this, to understand how this actually works.
u/rodrigo.siqueira

Wow! Replace X^Y with X|Y to generate Sierpinski triangles. Replace Math.min with Math.max for a more dramatic effect. Remove |0 for improved golfing (a minimal visible effect on top alignment). Replace "t*1.2" with "C(i+t)*6" for the "water effect".
u/jellyedwards

Wow that's amazing!!