Top dweets by u/KilledByAPixel

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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KilledByAPixel

remix of d/33124 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󭌿󨬫󟜡󥌦󙬱󛼶󜌺󨬽󜌊󩭯󬬨󨼮󭽩󩍴󪍼󟝩󟜶󜬻󪜭󛜻󚝦󫽲󚍪󟜨󬜽󪜾󜜩󟼴󝬹󞬭󜬹󞽪󚼫󟌨󬜿󝜺󝌮󝜫󪜯󜬩󚬹󞜻󫽮󨽬󪝣󪼽󧼽󟭔󟜡󥌩󮌮󩭩󫍬󤭥󨽴󚌹󞜰󚽪󚭓󚍡󟜨󬜿󪜯󝬰󞭩󟽢󛼵󞬨󨭼󜌩󛼶󜌩󙜱󚬶󛬲󞌩󛌵󝌰󛝪󚭃󚍡󚜬󬬽󬜿󪜥󝜿󜼺󜜵󞬱󞜭󪜪󜜳󛍲󚜻`.replace(/u../g,'')))

Nov 14 2025 5:52 AM UTC

}// 137/140

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Analog Stopwatch ⏱️

u/cantelope

i?b/5 -> i?b for accurate minor hand motion. /5 chosen for aesthetics?
u/KilledByAPixel

yeah, i think this is pretty common for analog stopwatches because otherwise 1 per second is very fast
u/ximavus

Ooh nice

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KilledByAPixel

remix of d/34411 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󩬽󭌪󝬰󯌰󒭁󟝓󚍦󛜽󜬰󚜊󠬽󩬯󞜊󩭯󬬨󪜽󜝥󝌬󬬽󭌿󩬪󚬸󙜵󞜫󞜫󘝦󚬲󜌰󞭩󞽩󛜭󞽸󛭦󪝬󫍒󩝣󭌨󞜶󜌭󠜪󞜰󜌫󬬪󦌬󝌷󜌫󬬪󦜫󠬪󜜹󞜬󬜽󬬯󞜬󬜩󚝚󟝩󚬪󜬮󜜥󜜬󥼽󜜭󦬪󦬬󦌽󥼪󤼨󪜩󛍙󟝗󚭃󚍩󚜬󮌮󩭩󫍬󤽴󮝬󩜽󭌦󙭒󚍶󟜨󩬿󠜪󦌭󠬪󦬯󜬺󜜩󚬴󜌰󛍶󚭚󛌶󜌩`.replace(/u../g,'')))

Oct 15 2025 6:30 AM UTC

}// 140/140

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Sunlight ☀️

u/ximavus

Nice!
u/magna

OMG!

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KilledByAPixel

function u(t) {

for(c.width|=j=0;j<2e4;x.fillRect(...j++?[j/7,S(a)*19+j%12*99,3,9]:[460,0,1e3,2e3]))x.fillStyle=R(v=j?(j%2?S:C)(a=j/200-t)<0?79:210:139,v,v)

Aug 29 2025 4:36 AM UTC

}// 140/140

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Pointy vs Round Lines #Illusion

u/KilledByAPixel

https://www.reddit.com/r/opticalillusions/co…

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KilledByAPixel

remix of d/34225 by u/KilledByAPixel

function u(t) {

with(x)for(t||translate(960,540),j=6;j--;)for(i=95;i--;fillRect(-T/2,T*S(i+i*t/T),T=4e3,5))fillStyle=`hsl(${i*t} 99%${i}%`,rotate(Math.PI/3)

Aug 21 2025 8:52 PM UTC

}// 140/140

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Hypnotic Symmetry 👁️

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KilledByAPixel

remix of d/33842 by u/KilledByAPixel

function u(t) {

x.font=`${t?2:7}in"`
x.filter=`grayscale()invert(${t?0:1}`
x.fillText(...t?t>.1?['𝙱𝙻𝙰𝙲𝙺 𝙲𝙰𝚃',479,1030]:['𝙹𝚂𝟷𝟹𝙺 𝟸𝟶𝟸𝟻',409,189]:['🐈',500,780])

Aug 13 2025 3:07 PM UTC

}// 140/140

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JS13K 2025: Black Cat 🐈‍⬛

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KilledByAPixel

remix of d/14456 by u/KilledByAPixel

function u(t) {

for(c.width|=j=16;j--;)for(i=500;i--;)x.fillRect(293+j%4*450+99*C(i*(j/3+1|0)+t/3)*S(i+t),160+(j>>2)*250+99*C(i*(j%3+1)+t/5)*C(i+t/2),9,9)

Jul 31 2025 5:11 PM UTC

}// 138/140

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Strange Loops ➰

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KilledByAPixel

function u(t) {

eval(unescape(escape`󨼮󭽩󩍴󪍼󟝨󟜲󜌊󥌽󭌥󝌯󜬊󮬽󜼵󜌊󩭯󬬨󪼽󜜸󞽫󛜭󞽸󛭦󪝬󫍒󩝣󭌨󝌰󜌫󠼨󭌪󜜮󝜷󜌸󚜪󜼰󜌫󚍔󟌱󟽩󚽪󚭔󞭪󚬨󪜭󥌫󜬩󚜪󞜹󛌮󛬮󥌼󜜿󦽺󚼨󪬿󜬰󜌺󮜩󛌵󜌬󪬿󮜺󜬰󜌭󮝝󞭛󪬿󮬫󮜫󩬺󮬫󪌬󝜰󛍪󟼨󞌫󥌩󚭨󞬲󜌰󛝦󧜩󚝩󟝫󙜹󛍪󟝫󟬸󛍹󟝩󚭨󚽨󛍦󟝨󚬨󜬭󥌩`.replace(/u../g,'')))

Jul 20 2025 9:43 PM UTC

}// 140/140

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One More #Default

u/KilledByAPixel

I was always fascinated by those old pictures where you can reposition the top half to make an extra person appear.
u/magna

Great!
u/cantelope

holy shit

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KilledByAPixel

remix of d/19590 by u/Odog8

function u(t) {

for(i=++n;n%--i;);throw i-1?p:p+=n+' '}{n=p=''

May 26 2025 7:28 PM UTC

}// 46/140

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Prime Printer 🧮

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KilledByAPixel

remix of d/33857 by u/lewdev

function u(t) {

for(i=70,x.font="6em'";i--;x.fillText('🧇',i*99,90))x.drawImage(c,0,(i+t*60)%99,2e3,1,-99-(1e3-(i-35)**2)**.5*9,i*9+199,8e3,9)

May 26 2025 4:38 PM UTC

}// 125/140

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Cylinder Waffles 🧇

u/lewdev

Nice! You got the curvature much better than mine!
u/lewdev

I need to figure out why 1e3-(i-35)**2)**.5*9 equates to a half circle pattern.
u/KilledByAPixel

it's the pythagorean theorem! rearranged to the form (c**2-a**2)**.5 = b, you can use similar math to draw a circle

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KilledByAPixel

function u(t) {

eval(unescape(escape`󩭯󬬨󭼽󨼮󭽩󩍴󪍼󟝩󟝦󟜲󝜵󞽩󛜭󞽸󛭦󪝬󫍔󩝸󭌨󪜪󚬲󛬳󙜹󯌰󛍘󚽓󚌱󝌪󭌫󪜪󪜩󚬨󣝡󭍨󛭨󮝰󫽴󚍘󛝔󛭸󛽡󛍙󛝔󛭹󛽡󚜼󩬿󜜹󞬱󚜬󦜩󚝘󟝩󙜲󜜪󞜹󛍙󟜨󪜯󜬱󯌰󚜪󞜹󛍸󛭦󫽮󭌽󚍃󚍘󛽦󯍙󛽦󚜪󚬹󚬹󚼳󚜫󙽥󫜢󙼬󨜽󪝮󫭥󬭗󪝤󭍨󛽷󒭯󫭭󫽵󬽥󫝯󭭥󟝥󟜾󥌽󩜻`.replace(/u../g,'')))

Apr 13 2025 4:00 AM UTC

}// 140/140

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Macrodata Refinement 🏢 #interactive

u/TGY

Oh, God! A four!
u/joeytwiddle

#tribute

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