New 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.

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

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Axioplase

function u(t) {

c.width=100;for(j=60;j--;)for(i=110;i--;)x.fillStyle=R(0,0,255,.03),x.fillRect(i+S(t+(j*j+i)/9)-9,j+C(t+(i+j)/9)-1,3,2)

Jan 13 2026 10:52 PM UTC

}// 119/140

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Stream

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ximavus

function u(t) {

for(x.reset(i=1e3);i--;)x.fillRect(960+S(t-i+C(t-i)*3)*960,540+C(t+i+S(t+i)*3)*540,20,20)

Jan 13 2026 8:03 PM UTC

}// 89/140

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Spirals

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rodrigo.siqueira

remix of d/34738 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert()sepia(`,X=t,Y=t*99-430;for(i=1e4;--i;x.fillRect(960+1.3*(X+Y),2*(X-Y)-50,.1,t<9))X=210+Y-((Y=-X)<0?X:-X)/2+i%2*400

Jan 12 2026 9:09 PM UTC

}// 138/140

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Poincare's Butterfly

u/joeytwiddle

#butterfly

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rodrigo.siqueira

remix of d/34722 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert()`
for(𝕏=X=Y=i=3e4;i--;𝕏=X,x.fillRect(2e3+Y*1700,360-X*1e3,t<1,.1))X=S(X*X-Y*Y*.6),Y=C(2*𝕏*Y+2.1)-T(i-t)/(i%19+1)/8

Jan 12 2026 2:35 AM UTC

}// 138/140

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Metamorphosis

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KilledByAPixel

remix of d/25022 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󩭯󬬨󨼮󭽩󩍴󪌦󟝩󟜶󜬷󜬬󮌮󩭩󫍬󤭥󨽴󚌰󛌰󛌲󩜳󛌲󩜳󚜻󪜭󛜻󮌮󩭩󫍬󤽴󮝬󩜽󚍘󚬮󝼭󜬶󚜪󚬲󚼨󦜽󪜯󜜸󜌭󜜷󚜪󚬲󟌱󞌰󧭙󟬰󟼧󘽦󜌰󙼺󙼣󩭦󩬧󛍸󛭦󪝬󫍒󩝣󭌨󜼹󚽘󛼲󚽘󛼴󞌪󠼨󦌯󞌭󪜯󞌰󜌭󭌪󝬩󛌳󜌫󦜫󦌯󜜲󚭓󚍘󛼱󝬭󭌩󛌲󛍩󟼮󜼺󞜹󚜩󦌽󪜥󞜹`.replace(/u../g,'')))

Jan 11 2026 6:09 PM UTC

}// 137/140

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Greenland 🇬🇱 #flag ❤️🤍

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rodrigo.siqueira

remix of d/34678 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert()sepia(`,X=t,Y=t*99-450;for(i=1e4;--i;x.fillRect(960+5*Y+15*X,5*(X-Y)-Y*X+640,.2,t<4))X=Y*.9993-(((Y=9-X)<0)*X+9)+Y/9

Jan 11 2026 11:40 AM UTC

}// 140/140

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Parabolic space distortion

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DazeWare

remix of d/34723 by u/DazeWare

function u(t) {

c.width=w=99
for(i=w*33;i--;x.fillRect(i%w,i/w*2,1,9))f=i%w+999*S(t*.05),n=T(0|(i/w+f^f-i/w)/(t*.7+6)),x.fillStyle=R((i)*n&i,n*i,(n&i)*i)

Jan 10 2026 2:36 PM UTC

}// 137/140

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u/ximavus

theyre back!

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KilledByAPixel

function u(t) {

c.style.filter='invert('
x.font="13em'"
x.fillText(["That's fine, dude.","I'm not mad at you."," - Renee Nicole Good"][t*60|0],30,280+2e4*t)

Jan 10 2026 2:24 PM UTC

}// 140/140

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💔

u/cantelope

was she one of the thousands of brown people they murdered, or no? oh right. she was the white woman

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kyle_serbov

remix of d/34730 by u/kyle_serbov

function u(t) {

for(i=9999;i--;X+=A[D],Y+=A[D^3])!t++&&(M={},A=[S=D=0,4,0,-4],X=Y=600),x.fillRect(X,Y,4,4),M[X+A[r=-~D%4]+[Y+A[r^3]]]||(D=r),M[X+[Y]]=S++%55

Jan 10 2026 10:33 AM UTC

}// 140/140

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made it faster

u/kyle_serbov

You can change the number '55' at the end to give a different pattern.
u/ximavus

If you remove the %55 entirely it fills and leaves a internet logo

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kyle_serbov

function u(t) {

for(i=99;i--;X+=A[D],Y+=A[D^3])!t++&&(M={},A=[S=D=0,4,0,-4],X=Y=600),x.fillRect(X,Y,4,4),M[X+A[r=-~D%4]+[Y+A[r^3]]]||(D=r),M[X+[Y]]=S++%55

Jan 10 2026 10:29 AM UTC

}// 138/140

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Kyle's Ant

u/kyle_serbov

This one was hard to compress. It was originally rainbow coloured, the camera moved with it, and the trail slowly disappeared behind it, giving a more interesting pattern.