Dweets awesomed by u/jylikangas

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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sfz

remix of d/2246 by u/pangolin

function u(t) {

new Audio("data:audio/wav;base64,UklGRsYAAABXQVZFZm10IBAAAAABAAEAQB8AAEAfAAACABAAZGF0YaIZ"+Array(69).join((~new Date%t+'').slice(3))).play()

Mar 22 2017 8:14 AM UTC

}// 140/140

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Now that's not annoying

u/pangolin

haha, beautiful work of art.
u/techiew

fuck you
u/joeytwiddle

Argh! I had my headphones on.
u/joeytwiddle

#audio
u/Purpzie

I don't even have my sound on right now, I'll have to come back to it later. Most unique dweet I've seen in a while though!

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mxfh

function u(t) {

for(x.drawImage(c,b=n=0,-16),i=w=960;a=C(i/w*4),b=!b,i-->-w;n+=C(t*i*i),x.fillStyle=R(e=b*w,e,e))x.fillRect(i+b+w,a>0?w+a*a*n*2+b*4:w,2,w)

Mar 13 2017 10:35 PM UTC

}// 138/140

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dwitter Album Cover Art https://blogs.scientificamerican.com/sa-visu… (deleted the prior version)

Show more comments…
u/donbright

wonderful
u/SpecialAgent

Nice homage to a great band :)
u/p01

Super smart implementation! Wish I saw it before I did https://www.dwitter.net/d/2958
u/zanella

I saw i--> and thought it was a new JS operator. :)
u/lionleaf

#album #album_cover
u/mxfh

#unknownpleasures #joydivision
u/rodrigo.siqueira

Here is the original Ph.D. dissertation page where this were published: https://twitter.com/ChristiansenJen/status/1…

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recursive

remix of d/1976 by u/recursive

function u(t) {

for(d=256;--d;)for(X=-32;++X<32;x.fillRect(960+X*8e3/d,100+7e4/d-h,120,9))x.fillStyle=R(h=(C(a=d/9+t*6)+C(X/9+a/3))*35,g=h+C(X^d)*6+90,g/.8)

Mar 9 2017 12:33 AM UTC

}// 140/140

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Bluer waves

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u/sfz

Incredible
u/sigveseb

Epic
u/FireFly

This is crazy, great stuff :D
u/iverjo

Best water on dwitter thus far!
u/iverjo

I also tried to achieve this some time ago, but yours is much more convincing
u/iverjo

https://www.dwitter.net/d/65 and https://www.dwitter.net/d/254 and https://www.dwitter.net/d/295 and https://www.dwitter.net/d/366
u/recursive

Your idea gives really great color to the surface. I wonder if it's possible to animate the colors using your idea, and the wave geometry and lighting using mine.
u/magna

(ノಠ益ಠ)ノ彡┻━┻
u/Renaud___

very very nice
u/jsizzle

Seriously amazing. Wow
u/SpecialAgent

Bravo
u/ideokan

i am a web developre, feeling like a dumb monkey in here
u/PiggyClone205

Welcome to the club, ideokan.
u/Godcranberry

This sis amazing, totally my favorite
u/Godcranberry

is* mb fam
u/iverjo

#water
u/hollo47

#ocean
u/katkip

#waves
u/vain

Very nice and lovely wave

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Niklas

function u(t) {

a=600,M=Math,x.lineTo(960+a*C(t)-a*M.pow(S(t),2)/M.sqrt(2),540+a*C(t)*S(t)),x.stroke();

Mar 7 2017 2:09 PM UTC

}// 87/140

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Fish Curve

u/iverjo

#fish

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New_Core

function u(t) {

c.width=1920;for(i=16;i--;)x.ellipse(1e3+300*S(t+i*.1),500+50*C(t+i*.1),160*S(-i*.5)+160,50*S(i*.1)+5,1.6+.5*S(t*.5),9.5,0,6.3);x.stroke();

Mar 3 2017 3:31 PM UTC

}// 139/140

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Show more comments…
u/sfz

wow creative!
u/sfz

reduced it by about 15 bytes in case you want to try to do something else with the extra room: c.width|=0;for(i=16;i--;)x.ellipse(1e3+300*S(t+i/9),500+50*C(t+i/9),160*S(-i/2)+160,50*S(i/9)+5,1.6+S(t)/2,9,0,7);x.stroke()
u/iverjo

So good!
u/sigveseb

is that a pseudo-3D fish? super nice!
u/donbright

marvellous
u/magna

WAAAAT
u/SpecialAgent

Magnificent depth!
u/joseprio

Really impressive :)
u/Kalanchoe

Amazing!
u/ArtsyBiker1

WHOA
u/gautjac

beautiful
u/21medals

Reduced it ±20 bytes and added beginPath() without changing any values:
u/21medals

for(c.width|=i=16;a=i--/10;x.stroke())x.beginPath(),x.ellipse(1e3+300*S(t+a),500+50*C(t+a),160*S(-i/2)+160,50*S(a)+5,1.6+S(t/2)/2,9.5,0,6.3)
u/New_Core

#fish
u/joeytwiddle

#model
u/Cloud

https://www.dwitter.net/d/17352
u/vain

incredible 3d fish

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khalkeus

remix of d/1593 by u/khalkeus

function u(t) {

v=['<・><','くコ彡','(___.))><','<・)))<<','<=<'];w=333;c.width=w;for(i=1;i<99;i++){x.fillText(v[i%5],w-((t+99)*S(i)*99)%(w*2),C(t-i)*9+i*5)}

Feb 28 2017 11:55 PM UTC

}// 136/140

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cut the code down a bunch and added up/down motion くコ彡

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mxfh

function u(t) {

d=x.getImageData(0,0,w=c.width=256,h=144);for(i=0;i<h;i++)for(j=0;j<w;j++)d.data[(i*w+j)*4+3]=(i-j&j+i)*t%w;x.putImageData(d,0,0)

Feb 20 2017 3:43 AM UTC

}// 129/140

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Show more comments…
u/jim

This is my favorite demo on Dwitter so far
u/mxfh

first draft on documenting the more obvious parts: https://news.ycombinator.com/item?id=13712558
u/hamptonio

pretty sick
u/mxfh

drone audiosoundtrack paste this:
u/mxfh

;new Audio("data:audio/wav;base64,"+window.btoa('RIFF$WAVEfmt data'+x.getImageData(0,128,c.width,32).data.reduce((data,byte)=>data+String.fromCharCode(byte),''))).play()
u/mxfh

//safer encoding: ;new Audio("data:audio/wav;base64,UklGRiQAAgBXQVZFZm10IBAAAAABAAIAAIAAAAAAAgAEABAAZGF0YQAA"+window.btoa(x.getImageData(0,128,c.width,32).data.reduce((data,byte)=>data+String.fromCharCode(byte),''))).play()
u/Xaviaro

Breathtaking!
u/lionleaf

#fractal #recursive
u/Galaxtone

Of you let it run long enough it returns to the original image but sort of pixelated and a little more and it'll return to the original image

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New_Core

remix of d/590 by u/New_Core

function u(t) {

c.width=2e3;for(b=i=200;i--;)i>180?a=10*S(t*4+i*9):a=0,x.fillRect(1e3+2*(b-i)*C(i-t)*S(i-t)+100*S(t+i*0.03-a*.08)+b*S(t/2),i*5+a,5,5)

Jan 14 2017 12:28 PM UTC

}// 133/140

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A tornado ;)

u/sigveseb

nice
u/sigveseb

nice
u/sigveseb

btw New_Core, the next hour we're having a dweet-off at a physical location! so expect many incoming dweets :D you add dweets too, and we can include it in the dweet-off :D
u/13thptr

#tornado

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New_Core

function u(t) {

b=a=c.width=500;for(i=a*5;i--;)g=i%(h=b+9*S(t))>h/2?0:b,x.fillRect(g+i%13*b*2-1*i*.6+(b*8*S(t*.5))%b*2,150+i*.05,b=20+i*.05,1)

Dec 31 2016 12:13 PM UTC

}// 126/140

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u/iverjo

Awesome :D
u/iverjo

This dweet reminds me of the Windows 3.1 chess background image: http://i.imgur.com/Zv5eBRk.png
u/New_Core

#checkerboard

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New_Core

function u(t) {

a=c.width=2e3;for(i=160;i--;)j=i%20,x.fillStyle=R(200-i),x.beginPath(),x.arc(i/3+820*S(t*2+j/6)+1e3,500+i/3-320*C(t*2+j/2),i,0,7),x.fill()

Aug 14 2016 9:26 AM UTC

}// 138/140

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u/Pontso

That is brilliant!
u/iverjo

Good idea!
u/sigveseb

very nice!
u/13thptr

#balls

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