Dweets by u/joeytwiddle

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: #ScaryMovies

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joeytwiddle

remix of d/18528 by u/AlgNinja

function u(t) {

W=3790,H=2110,A=Math.abs,T=W*(t-S(t)),x.fillStyle='#0001';x.fillRect(0,0,2e3,2e3);x.fillStyle='#4fc';x.fillRect(A(T%W-W/2),A(T%H-H/2),25,25)

Apr 28 2020 7:59 AM UTC

}// 140/140

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Shouts to u/AlgNinja! .......

u/AlgNinja

Nice!

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joeytwiddle

remix of d/12003 by u/joeytwiddle

function u(t) {

for(c.width|=j=20+t|0;j-->t;)for(g=(j-t)*120,i=W=99;i--;)x.fillRect(i?g+i*i/70*S(1e3/i-t*8+j**3):g,700+!!i*i*4,-W-80*S(j*j),i?6:-300-W*S(j))

Apr 5 2020 11:50 AM UTC

}// 140/140

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River cruise remix #water

u/KilledByAPixel

👍

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joeytwiddle

remix of d/17943 by u/katkip

function u(t) {

for(c.width=i=99,x.fillStyle='#024';i--;c.style.filter=`blur(9px)contrast(15)invert()`)x.fillRect(50+22*(q=C(i+t%20)),99-50*C(q)-i*t%40,4,9)

Mar 15 2020 2:54 PM UTC

}// 140/140

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Spirits in the flame

u/katkip

scary
u/Xen

Fire!
u/aleamb

wow! love it!
u/aleamb

#fire #flame

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joeytwiddle

remix of d/17674 by u/Layl

function u(t) {

r=Math.random
t%2<.1&&(x.beginPath(R=1),x.fillStyle=t&2?'#fff1':'#2042')
R*=1.07,v=r()*R
x.lineTo(960+1.5*C(a=r()*99)*v,540+S(a)*v)
x.fill()

Feb 23 2020 6:38 PM UTC

}// 140/140

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Endless Purple Crystal Growth

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joeytwiddle

function u(t) {

c.width=9,x.fillStyle=`hsl(${3*t},99%,${30-20*C(4*t)}%)`,x.fillRect(0,0,9,6),c.style.filter=`blur(${20-20*C(t/5)}vw)`

Feb 16 2020 10:24 AM UTC

}// 117/140

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Escape from the canvas (only in Chrome,)

u/joeytwiddle

Works best in dwitter's dark theme
u/joeytwiddle

Oh no, they fixed it! For a while the blur extended out of the iframe.

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joeytwiddle

remix of d/4841 by u/joeytwiddle

function u(t) {

for(c.width=99,i=9;i--;x.fillRect(40-35*C(t/i),19-14*C(t-i),15,15))c.style.filter='blur(6vw)contrast(200)'

Feb 16 2020 9:55 AM UTC

}// 106/140

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Playing with New_Core's #metaballs

u/joeytwiddle

This draws from d/17584 and d/4841
u/joeytwiddle

d/26600 uses tan to great effect. Here: 19+14*T(t/2-i)

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joeytwiddle

remix of d/11549 by u/joeytwiddle

function u(t) {

for(R=Math.random,i=700;i--;x.fillRect(960+r*C(a),80+y+r/9*S(a),.2,.2))y=896*R(),T=y>768,r=T?30:(y|127)*(y*S(y/300)-2*y%128)/1313,a=9*R()

Dec 25 2019 2:02 PM UTC

}// 137/140

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A quick and dirty Merry #Christmas #tree mix

u/katkip

Awesome!
u/Xen

nicely
u/iverjo

Great!
u/joeytwiddle

I originally felt a little ashamed to post because the distribution of dots is not uniform, hence "dirty", but your kind comments have reminded me that nobody really cares. Indeed, bugs like this can even give an image more character than perfection would. Thanks! 🙏

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joeytwiddle

function u(t) {

for(c.width=X=55;X--;)for(Y=34;T[7]=X/3,T[6]=Y/3,Y--;)for(l=6;x.fillRect(X,Y,s=T[0],s),l--;T[l]=S(v))for(v=n=l;n++<7;)v+=t*(l+n)/7%1*T[n]

Nov 18 2019 1:42 PM UTC

}// 137/140

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Dweet dream: a sort of 7-layer neural network

Show more comments…
u/joeytwiddle

A poor man's zzArt. A redux of https://joeytwiddle.github.io/nn-images/
u/joeytwiddle

Node values are held in T, with T[6,7] being the input nodes. Each "layer" has just one output T[l] formed from all the previous nodes T[l+1..7]
u/joeytwiddle

Instead of randomly generating and storing weights, we use t*(7*l+n)%1 Other weights you can try: v+=S(t*l+n)*T[n] or v+=S(l+t*n)*T[n]
u/DataMeta

Beautiful 👏
u/f8f82804

#dweetdream
u/KilledByAPixel

👍

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joeytwiddle

function u(t) {

c.width=192
for(i=0;i<9;i++)
x.fillRect(51+i*10+S(t)*30,40,5,20)
x.fillStyle='#fff3'
x.fillText("Jeffrey Epstein didn't kill himself",23,53)

Nov 12 2019 5:19 AM UTC

}// 140/140

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#default knows #meme

u/veubeke

😱

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joeytwiddle

function u(t) {

l=localStorage,c.onclick=()=>l.clear()
c.width|=i=1,x.font='3em monospace'
Object.keys(l).forEach(k => x.fillText(k+'='+l[k],9,i++*70))

Nov 6 2019 5:47 AM UTC

}// 135/140

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localStorage viewer. Click on the canvas to CLEAR ALL!

u/joeytwiddle

Visit the #localStorage hashtag to repopulate some keys ;-)
u/metamero

#tool
u/joeytwiddle

Ooof it was done before: d/5099

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