Dweets awesomed by u/kruno.ooo

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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

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tomxor

remix of d/35004 by u/NiVZ

function u(t) {

for(c.width|=i=63;i--;)'筯璓珧秧䧭秏篏䤧篯积'.charCodeAt(t%10)&1<<i&&x.fillRect(14+i%3<<6,7+i/3<<6,64,64)

Mar 6 2026 9:38 PM UTC

}// 95/140

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LECO - Unicode Bitpacked

u/tomxor

This is actually 115 bytes so only an 11 byte reduction over hex encoding, because each of the 10 codepoints takes up 3 bytes each when utf8 encoded, (over the wire, in the DB or in a local file)
u/dee-gomma

Top!

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NiVZ

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪀽𜐹𜠰𞱤👛𜰱𝐹𞐬𜠵𝰵𜐬𜠹𝠷𜐬𜠹𝠴𝰬𜠳𝀹𝰬𜰱𜐸𜰬𜰱𜠱𝐬𜠹𜠵𝰬𜰱𝰲𝰬𜰱𝠹𝑝𞱦𫱲𚁩🐰𞱩🀱𝐻𪐫𚰩𮱩𩠨𩁛𣑡𭁨𛡦𫁯𫱲𚁴𙐱𜀩𧐦𜐼🀱𝀭𪐩𮱸𛡦𪑬𫁒𩑣𭀨𞀷𜀫𚁩𙐳𚠶𜀩𛀴𜠰𚰨𣑡𭁨𛡦𫁯𫱲𚁩𛰳𚐪𝠰𚐬𝠰𛀶𜀩𯑽`.replace(/u../g,'')))

Mar 6 2026 12:36 PM UTC

}// 135/140

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LECO Font Count 10 Seconds

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u/NiVZ

My first dweet. Using binary & bitshifting to display 3x5 font
u/cantelope

#amazing
u/tomxor

Great first dweet, I love bitpacking.
u/dee-gomma

Very good!
u/dee-gomma

You can squeeze it under 140 bytes with some tricks (need to reverse bits): for(x.reset(i=15);i--;)x.fillRect(870+i%3*60,60*(0|i/3),60,[31599,25751,29671,29647,23497,31183,31215,29257,31727,31695][0|t%10]&1<<i&&60)
u/ximavus

I love it

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dee-gomma

remix of d/34948 by u/dee-gomma

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑻𩡯𬠨𭀿𫱮𨱬𪑣𪰽𧰽🡵𦱃🐷𛁳𚰫𧐽𪀺𬰽𜀬𬡥𬱥𭀨𪐽𬠽𝐰𜀩𛁨👲𚱲𚡓𚁴𚠶𚐬𬰥🐳𞱩𛐽𝐰𞱲𩑣𭀨𩀪𬱼𯁨𛁳𙠦𪀬𜠵𛀲𝐩𚑡𬡣𚁲𛁲𛁩𛀰𛁤🐱𩐳𚐻𩡩𫁬𨁥𭡥𫡯𩁤𨀬𩡩𫁬𤡥𨱴𚁵𦰰𧐫𬠪𚁃𙠦𠰭𛐩𛁵𦰱𧐬𬠬𬰾𜐦𙠱𝠬𩡩𫁬𤱴𮑬𩐽𤠨𩀩𚑽`.replace(/u../g,'')))

Mar 3 2026 8:48 PM UTC

}// 140/140

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#archery #interactive #game - click/tap to play

u/cantelope

wow
u/lewdev

Very fun!
u/ximavus

I'm so bad at this lmao

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KilledByAPixel

function u(t) {

for(j=w=640,g=g=>j>13?j*5-70:w-(j>6?i^g:i&g)*w;j--;x.fillRect(j>15?j*29-w:i*274,j>15?w:(j>>3)*169,274,w))i=j%7,x.fillStyle=R(g(1),g(2),g(4))

Mar 3 2026 6:04 AM UTC

}// 140/140

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Test Pattern 📺

u/cantelope

this means 2 things

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dee-gomma

remix of d/34948 by u/dee-gomma

function u(t) {

with(x)r=28+~t,i=20*t%20,fill(arc(v=540,v,r*20,i*.31,6.3,moveTo(v,v,beginPath(fillStyle=R(r<2|r<22&(r==13|r==21?i:~i)&&v,r>1&r<22&~i&&v)))))

Mar 2 2026 12:50 AM UTC

}// 140/140

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Dartboard #uncompressed #waitforit

u/cantelope

wow!

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rodrigo.siqueira

remix of d/34949 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert(`
for(a=b=t,i=8e4;i--;b-=b/4+C(a*3),a+=(i/b&i%2)*3.4-b*S(a*2.2)/8-a*a/4.21)x.fillRect(b*390+1450,1450-a*2e3,.1,t<1)

Mar 1 2026 7:46 PM UTC

}// 138/140

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The ammonite shell #ammonite

u/cantelope

impressive

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tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𥁛𜐶𜀰𧐫👓𚁴𚠹𚐬𨰮𭱩𩁴𪀽𭰽𜐲𞀬𪐽𜑥𝀻𪐭𛐻𮀮𩡩𫁬𤡥𨱴𚁩𙑷𛁩🠾𝰬𜐬𜐩𚑕👵𛁵👔𦱩𧐽𥁛𪑝𚰨𠱛𪑝𛑃𦱩𛐱𧐭𤱛𪑝𚱓𦱩𛑷𧐩𛰱𝑼𯀰𛁸𛡦𪑬𫁓𭁹𫁥👒𚀳𜠰𚡍𨑴𪀮𪁹𬁯𭀨𭐪𚁓𦱩𧐽𤱛𪑝𛑔𦱩𚱷𧐫𭑼𯀰𚐬𭐪𚁃𦱩𧐽𠱛𪑝𚱕𛑵𯁼𜀩𚐩`.replace(/u../g,'')))

Mar 1 2026 1:51 AM UTC

}// 140/140

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#FDTD #Electromagnetic Sim - Rendering #Poynting Vector (EM Flux)

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u/tomxor

I don't really understand maxwell equations, I just wanted to see if I could fit an FDTD into a dweet, and the Poynting vector of the EM field flow looks kinda cool.
u/tomxor

It's essentially a 2D sim of a point oscillator in a reflective box (although technically left and right wrap around), it has absolutely no physical equivalence, all parameters are normalised and tuned for visual preference.
u/ximavus

basically waves bouncing in a box? This visualization is really good though
u/cantelope

oh. well if has no physical equivalence then...
u/tomxor

I just meant that it's more abstract, because FDTD is commonly used to simulate a particular thing in real life.
u/ximavus

yeah waves bouncing in a box is the only way I understand it its a lot more complex than that

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dee-gomma

function u(t) {

eval(unescape(escape`𛰪🎯DARTS🎯𚠯𭱩𭁨𚁸𚑦𫱲𚁩🐵𝠰𚠡𭀬𨐽𫐽𛠱𝐷𜀸𞱩𛐭𞱦𪑬𫀨𨑲𨰨𞐶𜀬𝐴𜀬𬠪𜠰𛁡𛁡𚰽𜠪𫐬𫑯𭡥𥁯𚀹𝠰𛀵𝀰𛁢𩑧𪑮𤁡𭁨𚁦𪑬𫁓𭁹𫁥👲🀲𯀨𩐽𬠽🐱𜱼𬠽🐲𜐩𙡩🰧𬡥𩀧𞡲🀳𯁥🰧𘰰𞐰𙰺嬈𙡲🀲𜠿𙰣𩡦𩠧𞠧𘰰𜀰𙰩𚐩𚐩𬠽𜁼𪐯𜠰`.replace(/u../g,'')))

Mar 1 2026 1:02 AM UTC

}// 140/140

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Dartboard 🎯

u/ximavus

These normally take a ton of code congrats

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rodrigo.siqueira

remix of d/34928 by u/cantelope

function u(t) {

for(x.fillRect(0,0,i=3e3,i);i--;x.clearRect(960+S(i)*S(q=i**.9%1.2*t%3.2-3.2)*L/(Z=C(i)*S(q)*L+1)*540,540+C(q)*L/Z*540,s=4/Z,s))L=i/3%1

Feb 27 2026 7:58 PM UTC

}// 135/140

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Double Sphere - particle flow #uncompressed

u/ximavus

really good how did you uncompress and fit it wow

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛁷🐳𩐳𛁷𚐬𬠽𫠽🠨𪐫𫠩𚠪𜰮𜐥𜐬𫐽𜰮𜐬𪐽𭰻𪐭𛐻𮀮𨱬𩑡𬡒𩑣𭀨𞐶𜀫𤰨𬀽𭀯𝀫𝰪𬠨𜀩𚐪𤰨𬐽𬠨𜐩🀮𝐿𫐪𭠺𫐭𫐪𭠩𚠨𫀽𚁩𛰳𚱴𛰴𚐥𜐩𛰨𦠽𠰨𬀩𚡓𚁱𚐪𫀫𜐩𚠨𪀽𝐴𜀩𛁨𚱃𚁱𚐪𫀯𦠪𪀬𬰽𝀯𦠬𬰩𚑶👲𚁷𚐪𚠮𝐯𜠻`.replace(/u../g,'')))

Feb 27 2026 7:02 PM UTC

}// 139/140

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u/ximavus

I see recursive explosion

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