Dweets awesomed by u/jellyedwards

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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iverjo

remix of d/89 by u/iverjo

function u(t) {

c.width^=0;for(i=5e3;i--;)p=3*t+S(t/2)*i/3e3+i%4/.637,d=C(p)-S(p),d>0&&x.fillRect(960+199*S(p)+249*S(t/.7+i/6e3),i/4-2,199*d,1/(d+1))

Feb 24 2017 6:50 PM UTC

}// 133/140

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u/SpecialAgent

nicely done!
u/Kalanchoe

Flawless!
u/donbright

oh wow, the shading!
u/sigveseb

Good twister! Can we add color?
u/iverjo

Color would be awesome :) Feel free to try to add it
u/sigveseb

https://www.dwitter.net/d/1267 red
u/iverjo

Here's a purple version. Had to make some compromises. https://www.dwitter.net/d/1278
u/donbright

i attempted a rainbow version https://www.dwitter.net/d/1282
u/iverjo

#twister
u/vain

nice twister

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iverjo

remix of d/197 by u/iverjo

function u(t) {

c.width^=0;n=900;for(i=9;i++<n;)p=t+i/99,s=3/(9.1-p%9),x.beginPath(),x.lineWidth=s*s,x.arc(n+99*S(p),300*s,49*s*S(i/159),i,i+1),x.stroke()

Feb 24 2017 6:44 PM UTC

}// 138/140

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Snek!

u/joeytwiddle

Bless the coming and going of Him. May His passage cleanse the world.
u/iverjo

#3d
u/ximavus

I like snek

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iverjo

remix of d/464 by u/iverjo

function u(t) {

for(j=1080;j--;){a=b=0;for(k=35;k--&&a*a+b*b<4;a=c)c=a*a-b*b+t*6e-10-1,b=Math.abs(2*a*b)+j/1e11-1;x.fillRect(t*60,j,1,S(k/9))}

Feb 23 2017 5:10 PM UTC

}// 126/140

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Burning ship fractal. Feel free to play with the parameters to find other interesting locations in the fractal

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sigveseb

remix of d/407 by u/sigveseb

function u(t) {

for(n=c.width=i=1e3,s=S(t),k=C(t);i--;x.lineTo(n*X/Z,n*Y/Z))F=S(i),U=C(i),V=(i&7)-3,_=V*s+F*k,Z=V*k-F*s+15,X=_*k-U*s+7,Y=_*s+U*k+3;x.fill()

Feb 22 2017 9:37 PM UTC

}// 140/140

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u/donbright

that is unbelievable cool
u/iverjo

This one is best viewed in Chrome
u/magna

Nanotube
u/sigveseb

#material
u/joeytwiddle

Could be a dune heighliner #shiny
u/stiaje

#witchcraft
u/joeytwiddle

#hiddengem

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mxfh

function u(t) {

c.width=w=1920;π=Math.PI/2;λ=0;r=w/4;for(φ=-π;φ<π;φ+=1/r){λ+=.1;x.lineTo(C(φ)*S(λ-t)*r+w/2,(C(t)*S(φ)-S(t)*C(φ)*C(λ-t))*r+r)}x.stroke()

Feb 20 2017 11:57 AM UTC

}// 135/140

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simple orthographic projection; try some factors on the lat λ and lon φ offsets t

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u/mxfh

simple orthographic projection; try some factors on the lat λ and lon φ offsets t
u/wicktwo

Niiiice!
u/as

i love this one
u/ssg

nice variable names!
u/donbright

so elegant
u/lionleaf

#sphere
u/lionleaf

#d3 . (3d is currently not a valid hashtag)
u/BirdsTweetCodersDweet

#whichwayround #inorout

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New_Core

function u(t) {

c.width=2e3;for(a=i=629;i--;)s=-150/((i+t*60)%a),X=a*S(i*.31)*s+1e3,Y=a*C(i*.3)*s+500,x.fillRect(X,Y,s*9,s*9),x.lineTo(X,Y);x.stroke();

Jan 17 2017 4:08 PM UTC

}// 135/140

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u/Ameo

That's ridiculously impressive.
u/Ameo

That's ridiculously impressive.
u/Ameo

That's ridiculously impressive.
u/ilSilvano

That's three times ridiculously impressive.
u/joeytwiddle

I feel like god is pulling all the thread out of the universe
u/hope4tg

Haha, agree with joey, the zoom out effect is awesome
u/Lazy1337

#d3
u/katkip

#infinite
u/vain

really impressive

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iverjo

function u(t) {

t?i++:i=0;for(j=1080;j--;){a=b=0;k=35;for(;k--&&a*a+b*b<4;)c=a*a-b*b+i/1e11-1,b=Math.abs(2*a*b)+j/1e11-1,a=c;x.fillRect(i,j,1,S(k/9))}

Sep 28 2016 1:14 PM UTC

}// 134/140

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Burning ship fractal, zoomed in on an interesting point

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u/iverjo

128 characters: for(j=1080;j--;){a=b=0;k=35;for(;k--&&a*a+b*b<4;)c=a*a-b*b+t*6e-10-1,b=Math.abs(2*a*b)+j/1e11-1,a=c;x.fillRect(t*60,j,1,S(k/9))}
u/iverjo

127 characters: for(j=1080;j--;){a=b=0;for(k=35;k--&&a*a+b*b<4;)c=a*a-b*b+t*6e-10-1,b=Math.abs(2*a*b)+j/1e11-1,a=c;x.fillRect(t*60,j,1,S(k/9))}
u/iverjo

126 characters: for(j=1080;j--;){a=b=0;for(k=35;k--&&a*a+b*b<4;a=c)c=a*a-b*b+t*6e-10-1,b=Math.abs(2*a*b)+j/1e11-1;x.fillRect(t*60,j,1,S(k/9))}
u/donbright

speechless!!
u/iverjo

#fractal
u/iverjo

#burningship

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New_Core

function u(t) {

x.fillStyle=R(b=2e3,b,b,0.1);x.fillRect(0,0,b,b);x.beginPath();for(i=b;i--;)x.lineTo(i/2*C(t)+i*S(g=t+i)+960,i/4*S(t)+i*C(g)+540);x.stroke()

Aug 21 2016 3:10 PM UTC

}// 140/140

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u/iverjo

Dat tunl!
u/New_Core

maybe its a spinning chinese hat from top
u/iverjo

You're right, I can trick my brain into beliving that. Funky! It's like one of those illutions where you see different things based on how you look at it/think of it
u/iverjo

*believing
u/iverjo

Dwitter really needs an "edit comment" feature :P
u/lionleaf

Wow!!
u/giel

Nice!
u/lionleaf

#rotation #hat #in_or_out #lighting
u/joeytwiddle

#shiny
u/vain

Wow! Very nice!

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icecuber

function u(t) {

c.width=192;A=Math.abs;Y=A(t*99%176-88);X=A(t*139%376-188);x.F=x.fillRect;x.F(X,Y+7,3,3);x.F(187,Y+C(X/39)*29,5,20);x.F(0,Y-S(X/29)*22,5,20)

Apr 24 2016 12:39 PM UTC

}// 140/140

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u/lionleaf

I'd love a blog post explaining how you approached creating this one!
u/iverjo

+1
u/SpecialAgent

+1
u/FireFly

I love this one—the movement doesn't really feel all that artificial despite being so. Hats off for figuring out how to get the pads to that :)
u/dh7

+1 very well done !!!
u/joeytwiddle

Amazing. Looks so real. Some handy techniques in here too :)
u/donbright

genius
u/TheGreatRambler

How do you do that under 140 chars?
u/lionleaf

#pong
u/lionleaf

#game
u/joeytwiddle

#tribute
u/Lazy1337

#witchcraft
u/vain

incredible - great work

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iverjo

function u(t) {

c.width=2e3;n=900;for(i=9;i<n;i+=2)s=2/(9.1-(t/2+i/99)%9),x.beginPath(),x.lineWidth=s*s,x.arc(n,240*(1+s)/s,s*99,j=i*9,j+6),x.stroke()

Feb 21 2016 9:06 PM UTC

}// 134/140

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#tunnel

u/joeytwiddle

There appears to be a light at the end of that tunnel
u/joeytwiddle

#hiddengem #lighting

You've reached the end.

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