Dweets awesomed by u/letsbreelhere

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: #Opposites

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sigveseb

function u(t) {

A=Z=>{W=1920/Z;for(U=Z;U--;)for(V=Z;V--;x.fillRect(U*W,V*W,W,W))x.fillStyle=R(B=Math.random()*255,B,B,1/128);Z&&A(Z-1)};t||A(128)

Mar 3 2017 10:23 PM UTC

}// 129/140

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fake perlin noise

u/SpecialAgent

ah very good :)
u/iverjo

Nice texture
u/sfz

I'd tried to do this but couldn't fit it, nice squeeze!
u/sigveseb

#texture #perlin

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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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sigveseb

function u(t) {

t*=5;for(c.width=s=X=64;X--;)for(Y=37;Y--;1-Q*Q-W*W>0&&x.fillRect(X,Y,1,1))for(j=40,Q=W=E=0;j--;Q=E)E=Q*Q-W*W-X/t/t+5/t,W=2*W*Q-Y/t/t+.66

Mar 2 2017 2:02 AM UTC

}// 137/140

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u/sfz

Nice Mandelbrorshach!
u/iverjo

That's pretty impressive
u/sigveseb

#fractal #zoom
u/katkip

Awesome
u/katkip

#mandelbrot

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sigveseb

remix of d/271 by u/3bl3gamer

function u(t) {

W=c.width=255;for(i=9<<12;a=i&W,b=i>>8,n=b-45,m=a-99,i--;x.fillRect(a,b,A=1/(((t+a/n)%2)^b/n),A))n*=(B=(W*S(t*29+n/5)+m*m+n*n)/5e3)<1?C(B):1

Feb 24 2017 12:35 AM UTC

}// 140/140

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Based on some of 3b3lgamer's stuff (remix link got broken).

Show more comments…
u/donbright

dude you are the king,.. O M GOSH
u/Renaud___

Fantastic :S
u/lionleaf

Fixed the remix link for ya :)
u/nashcat

holy sh*t
u/Kalanchoe

H...how? This is so impressive.
u/magna

Needs more music.
u/xem

inhuman
u/donbright

still the one that blew my mind the most.
u/lionleaf

#wobble #wobbly #water #mirror #checkerboard #refraction #sphere
u/Xaotic

wtf
u/firegodjr

#raytracing #best
u/stiaje

#witchcraft
u/sigveseb

This one used to be fast, wonder why it is slow now?

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p01

function u(t) {

c.width|=0;for(n=200;n-=1/64;x.fillRect(n%3*666,n*5,h=8-k,h))for(r=C(t*3),i=S(t*4),k=28;--k/r;i=j)j=2*r*i+1-n/99,r=r*r-i*i+1-n%3

Feb 21 2017 9:42 PM UTC

}// 128/140

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u/donbright

wow!
u/iverjo

#fractal
u/galactustrombone

IS THAT THE MANDELBROT SET?
u/katkip

yep
u/joeytwiddle

#mandelbrot
u/DaSpider

Somehow this runs much faster in my codebase https://repl.it/@rogerio_neves/Dwitter-codeb…

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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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sigveseb

function u(t) {

for(i=4e3;i--;x.fillRect(m+m*s*C(i),960+m*s*S(i)*v,9*s,9*s))v=S(i)<0,x.fillStyle=R(v*(99+(c=155+99*S(t+S(9*i)))),c,!v*c),s=(t+i/(m=250))%9+1

Jan 8 2016 1:46 AM UTC

}// 140/140

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u/S.T.L.K.R.

This is underrated
u/iverjo

#sun #water
u/joeytwiddle

#sea #ocean #sunset #landscape
u/katkip

I actually was gonna make a similar one before seeing this one

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sigveseb

function u(t) {

x.fillStyle='red';x.fillRect(0,0,2e3,2e3);x.font='999px A';x.fillStyle='#ff0';x.fillText(String.fromCharCode(9773),580,920)

Jan 8 2016 1:46 AM UTC

}// 123/140

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