Dweets awesomed by u/DataMeta

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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Xen

function u(t) {

i=1n,p=t=3n*(10n**1005n);while(t=t*i/((i+1n)*4n))p+=t/(i+=2n)
throw('3.'+(p+"").slice(1,1e3))

Mar 18 2026 6:24 PM UTC

}// 93/140

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𝝅

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Xen

function u(t) {

eval(unescape(escape`𒡴🱸𦱳👠𩡩𫁬𤱴𮑬𩑠𧐽𤠨𦠽𜐵𝐬𦠬𦠬𮐽𜐩𞡺👣𛡷𪑤𭁨🐳𜠰𒡸𦱦👠𩡩𫁬𤡥𨱴𨁝𚀰𛀰𛁺𛁺𚐊𮁛𬱝🐢𨡬𭑥𘠊𮁛𬱝👒𚁸𦱦𧐨𜰬𜰬𜰱𝀬𜐰𚐩𒡸𦱦𧐨𜰬𜐴𛀳𜐴𛀱𝠴𚐊𮁛𬱝🐢𭱨𪑴𩐢𒡦𫱲𚁩𘁩𫠠𮀩𮀮𩡩𫁬𥁥𮁴𚁩𛀵𛀱𜐪𮐫𚰩`.replace(/u../g,'')))

Mar 18 2026 5:39 PM UTC

}// 132/140

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u/cantelope

#dwitter.OS

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tomxor

remix of d/35076 by u/tomxor

function u(t) {

eval(unescape(escape`𩠽𚁳𛁩𚐽🡸𛡦𪑬𫁒𩑣𭀨𦀫𚁪👩🠾𜐩𛁙𚱪𛁗𛑩𛁈𛑩𛁸𛡦𪑬𫁓𭁹𫁥👳𦰱𧐿𬰺𙰣𙰫𬰫𬰫𬰩𛁦𚀧𘰰𞐹𙰬𦀽𦐽𜀬𥰽𢀽𨰮𭱩𩁴𪀽𝀸𜀩𛁛𛠮𛠧𜁢𝱦𨠧𧐮𫑡𬀨𩠬𥰽𜠴𜀬𢀽𦀽𜐲𜀬𦐽𞀰𚐬𩠨𙰣𜀰𞐧𛀶𛁈🐲𝀩𛁛𛠮𛠧𜁦𝱢𙱝𛡭𨑰𚁦𛁘𚰽𥰽𦐬𦐫👙𚐻`.replace(/u../g,'')))

Mar 17 2026 6:14 AM UTC

}// 139/140

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#win95 #dialog colour blank

u/ximavus

YOOO this looks awesome!
u/DataMeta

dope

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AncientGarden

function u(t) {

c.width|=0;for(i=100;i--;x.fillRect(a+i%25*100-((t|0)%5==(i/25|0)?t%2*100:0),400+(i/(t<2.7?t*9:25)|0)*a,a,a))a=50

Mar 16 2026 2:29 AM UTC

}// 113/140

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Default ▪️ ▪️ ▪️ ▪️

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Xen

function u(t) {

for(z=3,c.width|=i=1e3;i--;)x.fillRect(i*2,z=99+C(i/89+t+z/99)*99+i%4*199,i%4+1.5,1e3)

Mar 11 2026 3:20 PM UTC

}// 86/140

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KilledByAPixel

function u(t) {

eval(unescape(escape`󩭯󬬨󭼽󝬰󛍩󟜲󩜳󞽩󛜭󞽸󦽦󧜨󦌪󭼫󜼰󚼨󦌾󜜵󟼱󞬭󜜩󚭺󛝲󛍙󚭷󚼳󜌫󚍙󟬸󟼭󜜺󜜩󚭺󛝲󛍲󚬽󜬬󬬩󚝘󟜨󪜾󟬱󚜥󜼳󛍙󟝩󛼶󝭼󜌬󪜥󜬦󙭸󦽦󟜧󩭩󫍬󤭥󨽴󙽝󚍘󚭷󛍙󚭷󛍷󛍷󚜬󮌮󩭩󫍬󤽴󮝬󩜽󦌥󜭞󦜥󜬿󤬨󚜺󙼣󩭦󩬧󛍲󟜵󚼵󚭃󚍴󛝙󛼹󚜬󮬽󚍩󙜲󛜮󝜩󚬳󝜻`.replace(/u../g,'')))

Mar 10 2026 6:39 PM UTC

}// 139/140

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Bulging Checkerboard Illusion 🏁

u/KilledByAPixel

#illusion
u/ximavus

this works very well

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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
u/SockTaters

fantastic!
u/joeytwiddle

Good challenge :-)

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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/34874 by u/rodrigo.siqueira

function u(t) {

c.style.filter='invert()'
for(i=836;i--;x.fillRect(i%38*50.4+5,(i/38|0)*51.5+2,w=45,w))k=S(i**3+t)**33*90+90,x.fillStyle=`hsl(30,50%,${k}%)`

Feb 10 2026 2:26 PM UTC

}// 140/140

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Pool of Blue Dots

u/cantelope

this is nice
u/tor020

conway game of life thing
u/aleamb

beautiful

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