Dweets awesomed by u/rsrsrs

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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joeytwiddle

remix of d/7355 by u/New_Core

function u(t) {

for(i=a=360;i--;x.fillRect(i?a*S(i*a)*s+955:0,i?a*C(i)*s+535:0,k=i?s*9:2e3,k))s=20/((i+t*40)%a-a),x.fillStyle=i?`hsl(${i*5},99%,50%`:'#0001'

Mar 18 2018 5:39 AM UTC

}// 140/140

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Remixing New_Core's Starfield 3

u/joeytwiddle

#starfield

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jylikangas

function u(t) {

for(X=c.width=450;X--;x[f](X%50*5+t%23*9,0,3,X))x[f='fillRect'](X-X%5*25,99+S(X*5)*5-(h=9*S(X%64/16))+(X>>6)*25%50,1,h*2)&x[f](X*2,50+h,9,1)

Mar 17 2018 8:47 AM UTC

}// 140/140

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Scanimation Fish

Show more comments…
u/Lynext

Genius!
u/magna

If some technique exists, there's a dweet version of it.
u/sigveseb

this is so impressive :)
u/sigveseb

https://www.youtube.com/watch?v=LCIsIfEOEI8 some more inspiration for other dweets perhaps!
u/iverjo

#fish
u/aleamb

#scanimation
u/pythech

blew my brains out
u/rep_movsd

#illusion
u/rep_movsd

#underrated
u/vain

this blow me away! How...? O.o

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Batrachus

function u(t) {

r=a=>Math.floor(a*Math.random())
w=120
for(i=0;i<w;i++){x.fillStyle=R(0,r(255),r(255))
b=r(w/2)
x.fillRect(r(32)*w+b,r(32)*w+b,c=w-2*b,c)}

Mar 14 2018 6:58 PM UTC

}// 138/140

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u/magna

120: r=a=>a*Math.random()|0;for(i=w=120;i--;x.fillRect(r(32)*w+b,r(32)*w+b,c=w-2*b,c))x.fillStyle=R(0,r(255),r(255)),b=r(w/2)

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snydej

remix of d/7060 by u/snydej

function u(t) {

for(T(0,i=4e3,.06);r=--i**4.3;T(t**(i<9?9:i<30)*200+r,a=r%5*S(i+t)**2,51*a))T=(w,s,a)=>x.fillRect(w*2%2e3,w%1079,s,s,x.fillStyle=R(a,a,a,a))

Feb 24 2018 2:52 AM UTC

}// 140/140

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Golfed this one better and added a few details, like differing star sizes.

Show more comments…
u/DirtyDan

Cool!
u/snydej

Feature request: When in fullscreen center the canvas and fill unused space with black. I'm guessing the white background is there in case the dweet has transparency. Would it be possible to put the canvas in a div with a white background and put a black background behind that?
u/New_Core

Did you want t?0:c.height=2e3 infront of your dweet and expand the w%1079 number by a few 100?
u/snydej

It'd be nice but I don't have the room to add it to this dweet. I'm sure some dweets do that and so I tried to suggest a fix that wouldn't break that behavior.
u/AnnanFay

"When in fullscreen center the canvas and fill unused space with black" This seems like it would break many dweets.
u/snydej

By unused space I mean the space OUTSIDE the canvas. This is pretty standard behavior when fullscreening anything.
u/snydej

For instance, d/6967. On my monitor the canvas does not extend to the bottom of the screen in fullscreen mode and there is a white bar running along the bottom. This makes the dweet look cut off. If it were a black bar it would look fine because the screen would just look dark there. This is how everything from TVs to YouTube deal with fullscreening when the source material that has a different aspect ratio from the screen.
u/snydej

by d/6967 above I meant https://www.dwitter.net/d/6967 I think the period messed up the link
u/snydej

Actually it looks like the canvases already their background color set to white (I had assumed that the background was not set and that setting it would change the rendering of some dweets, but it looks like that's not the case.) So you wouldn't even need the additional div that I suggested originally.
u/Renaud___

Beautiful
u/aleamb

amazing
u/joeytwiddle

I think the canvas is transparent by default, the white is just the page behind it.
u/snydej

Nope, that's what I thought too. The image data within the canvas is initially transparent (this affects the rendering of dweets that call x.drawImage(c, ... ) but there is also a background css property on the canvas that is set to white and this causes transparent areas of the canvas to show up as white regardless of what's behind them. You can try this out by locally tweaking the css for the body element that contains the canvas. On most dweets you don't see any part of this element unless the dweet is fullscreened but there are exceptions like d/7084 . I don't know what the best way to handle that would be.
u/donbright

:)
u/iverjo

#stars
u/joeytwiddle

#landscape #scene
u/larzuk

quite impressive!
u/vain

nice night sky with shooting stars. just incredible work

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snydej

function u(t) {

f=(w,s,a)=>x.fillRect(w*2%1910,w%1080,s,s,x.fillStyle=R(a,a,a,a))
for(f(0,i=3e3,.06);--i;)f(t**(i<9?9:i<14?1:0)*200+i**4.7,3,255*S(i+t)**2)

Feb 24 2018 1:25 AM UTC

}// 139/140

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BirdsTweetCodersDweet

function u(t) {

c.width^=π=2*Math.PI
s=0
e=t*π
if(t%2>1)s=e,e=0
x.lineWidth=20
x.arc(960,540,100,s,e%π)
x.stroke()

Feb 5 2018 5:20 PM UTC

}// 98/140

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Android lollipop themed loading icon...

u/BirdsTweetCodersDweet

c.width^=0,π=2*Math.PI to stop the shaking
u/akm

Don't you mean c.width|=0,π=2*Math.PI to stop the shaking?
u/prplz

#loading
u/d0n.key

Am I trippin

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nickd3000

function u(t) {

for(i=0;i<32;i++)g=10*t*(i%3),x.fillStyle='hsl('+g+',99%,55%)',x.fillRect(80*i,5,80,20);x.drawImage(c,-5,5,1930-S(t*4)*5,1080+5);

Feb 4 2018 1:00 PM UTC

}// 129/140

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stripe machine

u/vberlier

that's really clever
u/joeytwiddle

#warping

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nickd3000

function u(t) {

v=160,s=20;for(i=0;i<60*v;i++)l=(i%v),m=((i/v)|0), k=v*(1+S((C(l/15)/C(m/17))+(t*4))),x.fillStyle=R(n=k+m*2,n+m,n+k),x.fillRect(l*s,m*s,s,s)

Feb 1 2018 9:02 PM UTC

}// 140/140

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field work

u/41407

Awesome! I managed to shorten it down to 129 if you want to add something to it: v=160;s=20;for(i=60*v;i--;l=(i%v))m=(i/v)|0,k=1+S(C(l/15)/C(m/17)+t*4),x.fillStyle=R(n=k*v+m*2,n+m,n+k*v),x.fillRect(l*s,m*s,s,s)

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akm

function u(t) {

c.width=1920
x.font='90px Arial'
x.fillText('Total time waisted watching this dweet:',220,500)
x.fillText(~~(t/60)+'min'+~~t%60+'s',800,590)

Jan 31 2018 4:45 AM UTC

}// 140/140

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u/katkip

#time
u/katkip

69 minutes! record

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magna

remix of d/6493 by u/magna

function u(t) {

x.fillRect(0,0,2e3,2e3);for(i=64;i--;)for(x.setTransform(1,0,0,1,i%8*240,(i>>3)*135),j=99;j--;)x.clearRect(120+C(t+j/4)*50,67+S(j*i)*50,3,3)

Jan 26 2018 1:14 AM UTC

}// 140/140

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Show more comments…
u/donbright

!!!!!!!!!!
u/donbright

man this is... unbelievable
u/aleamb

fucking awesome!
u/magna

thanks! there's a lot of room to play around with variations with this idea. go nuts!
u/sandstedt

Amazing!
u/zanella

I didn't know computers could do such thing. :D
u/rikardlindstrom

Wowwowowow
u/Qwitter

!!!!!!!!!!!!!!!!!
u/Qwitter

This makes me just eant to give up a qwit
u/sigveseb

Really nice :D
u/sigveseb

64-in-1 dweet value megapack ^^
u/diceroll123

how do i give you Dwitter Gold™️?
u/magna

I only take Dwittercoin, but thanks for the thought!
u/Qwitter

Have a Dwitcoin <svg height="40" width="40"><circle cx="10" cy="15" r="9" stroke="#999900" stroke-width="2" fill="#bfbf22" /><text x="7" y="20" fill="#cfcf00">$</text><text x="5" y="20" fill="#eeee00">D</text></svg>
u/bepisTM

wait what, dwitter comments support tags?
u/Qwitter

<del>no</del>
u/bepisTM

<span style="color:#f06">test</span>
u/Qwitter

<svg height="20" width="40"> <text x="5" y="10" fill="red" transform="rotate(30 0,0)">P</text> <text x="10" y="10" fill="red" transform="rotate(20 0,0)">A</text> <text x="15" y="20" fill="red" transform="rotate(-20 0,0)">S</text> <text x="20" y="35" fill="red" transform="rotate(-30 0,0)">S</text> </svg>
u/StarStep

pass
u/lionleaf

#multi_dweet #awesome #visualization
u/lionleaf

#multidweet
u/rodrigo.siqueira

A collection of Lissajous patterns
u/vain

Lissajous patterns in 140 chars? top!

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