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/13667 by u/rodrigo.siqueira

function u(t) {

if(t<9)for(w=i=960;i--;x.fillRect(w+w*X/Z+Z-X*99,w*Y/Z,s=40/Z/Z,s))
X=2.5*C(U=i+i/t)+C(V=i*i)*S(U),
Y=2*S(U)+T(U)*S(U)-3.5,
Z=S(i*i+U)-7

May 7 2019 1:33 AM UTC

}// 136/140

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Up and Down

u/KilledByAPixel

Beautiful stuff!

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rodrigo.siqueira

remix of d/34557 by u/rodrigo.siqueira

function u(t) {

t?c.style.filter=`invert(`:𝕏=X=Y=0
for(i=3e4;i--;𝕏=X,x.fillRect(X*3e3-580,Y*5e3-400,t<3,.1))X=T(X*X%.5-Y*Y+X**9
-Y**3)+.33,Y=C(2*𝕏*Y+1.2)

Nov 26 2025 11:50 PM UTC

}// 137/140

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Light and shadow on rounded shapes

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mathisvdr

function u(t) {

for(x.fillRect(0,0,i=5e3,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=3/Z,s))L=i/4%1

Mar 1 2026 12:21 AM UTC

}// 135/140

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Dense Cloud

u/cantelope

go ahead and use the remix button for remixes. thanks!
u/joeytwiddle

Remix of d/34929

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rodrigo.siqueira

remix of d/33811 by u/gabornyeki

function u(t) {

for(x.fillRect(x.globalAlpha=.3,p=q=0,i=1e5,i);i--;x.clearRect(960+p,540+q,1,1))r=p+C(a=p*i+t)*3,s=q+S(a)*3,r*r+s*s<2e5&&(p=r,q=s)

May 18 2025 4:16 PM UTC

}// 130/140

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AnnanFay

function u(t) {

D=x=>(r=new XMLHttpRequest,r.open('GET','./'+x,0),r.send(),r.response.match(/u\(t.*([^]*?) }/)[1])
eval(t?A:A=D(1494)+';'+D(888).slice(23))

Feb 3 2018 9:00 PM UTC

}// 139/140

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u/Apex

A dwitter combiner? Awesome
u/joeytwiddle

Squints... scratches head... this is synchronous XHR!
u/joeytwiddle

Same thing, using fetch: F=async I=>T[I]=(await(await fetch('/id/'+I)).text()).match(/u\(t.*([^]*?) }/)[1];eval(t?T[1494]+';'+T[888].slice(23):F(1494),F(888))
u/magna

HAX!
u/Renaud___

HAX ! but funny combinaison :)
u/Xen

lol nice work

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asteriskman

function u(t) {

c.width|=0
x.shadowBlur=15
x.shadowColor=`hsl(${t*99} 20%20%`
for(i=0;i<299;i+=0.1)
x.fillRect(960+4*i*S(a=i*9+t),540+4*i*C(a),50,50)

Oct 24 2019 11:30 AM UTC

}// 133/140

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Inktober Day 24 - Dizzy

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BackendForth

function u(t) {

c.width|=0
for(i=2;i--;)
for(j=0;j<6.28;j+=6.28/9)
{w=99/(S(t+j)+2)
x.fillRect(i*960+400+C(t+j)*400+w*i,540-w/2-S(t*9+j)*99,w,w)
}

Apr 5 2021 6:22 PM UTC

}// 130/140

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#stereograph Cross your eyes until the images are on top of each other for a 3d effect!

u/taupelink

whoa
u/magna

Nice! I relax my eyes (i.e. as if looking at a distance) instead of crossing. Then the smallar squares appear closer, not farther away. But amazing regardless! More of this technique please!

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cshadows

remix of d/18987 by u/nburn42

function u(t) {

for(let i=2e3,f=(X,Y,n=8)=>Y?f(X*X*t-Y*Y/n,X*Y-X/Y,t-n):x.fillStyle=`hsl(${n*n*t*t},100%,50%`;i--;x.fillRect(i,t*90,1,1000))f(i/490-2,1-t/6)

May 28 2020 3:05 PM UTC

}// 140/140

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KilledByAPixel

remix of d/11631 by u/metamero

function u(t) {

c.before('╲╱'[t**3.7&1]+' ')

Jun 8 2025 3:09 PM UTC

}// 28/140

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Tiny #Maze 🐀

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katkip

function u(t) {

q=9999
for(j=999;j--;)x.fillRect(
960+S(j*j*q)*1e2*t*S(j*Math.PI/q),
540+C(j*j*q)*1e2*t*C(j*Math.PI/q)
,1,1)

Dec 13 2018 1:14 PM UTC

}// 108/140

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Replace q with 2, 2.0003, 3, 4, 5, 6, 7 ... 9876 and get 3D shapes of PI with X+Y simmetry