Dweets awesomed by u/recursive

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.

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andy

function u(t) {

a=b=>S(t*b)*128+128
x.fillStyle=R(a(1.3),a(3),a(2))
x.fillRect(S(t*3)*960+960,C(t*2.5)*539+539,10,10)
x.drawImage(c,S(t)-2,C(t)-2,1924,1084)

Feb 23 2017 10:30 AM UTC

}// 140/140

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Show more comments…
u/magicmarc

First line as "a=b=>128*(S(t*b)+1)" brings this to 140.
u/andy

Thanks, that's right. Didn't even realize i was over 140 :)
u/lionleaf

Are you seeing over 140 characters? On chrome it says 140/140 at least.
u/andy

weird, yesterday it said 143.
u/michelinux

It's probably because on Windows the new line takes 2 characters ('\n\r'). Use ';' instead of new line and you should have a more consistent behaviour.
u/andy

still weird, i don't have any windows machines.
u/SpecialAgent

the simplicity of that zoom blows my mind, great work!

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aemkei

function u(t) {

c.width^=0;for(i=-30;i<30;i+=0.01+t/2e3)x.fillRect(960+T*C(T=i*40),540+T*S(T),w=4+i*S(t),w)

Feb 23 2017 10:30 AM UTC

}// 91/140

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jasonbdly

function u(t) {

d=x.createImageData(w=c.width=256,144)
d.data.map((v,i,a)=>{a[i]=(i/.01%w-128)**2*C(t)**2-(i/2/w+32)**1.5*S(t)*S(i)});x.putImageData(d,0,0);

Feb 23 2017 6:31 AM UTC

}// 140/140

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p01

function u(t) {

for(d=2e3;d--;x.fillRect(960+d*C(a),540+d*S(a),24,24))a=Math.random()*6.3,x.fillStyle=R(e=255*C(t-1e3/d*S(t-a-C(a*99/d))),99*S(a-e/d),6e4/d)

Feb 22 2017 11:45 PM UTC

}// 140/140

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u/sigveseb

Nice!
u/ninerdelta

wow!
u/p01

Thanks :)
u/ArtsyBiker1

Awesome!
u/TheGreatRambler

Messing with my brain!
u/lionleaf

#tunnel

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robot0001

function u(t) {

t||(s=9,w=1920,h=10);c.width=w;x.translate(w/2,540);t*=.09;for(i=0;i<9;i+=.0009){x.fillRect(w*S(t+i),h*T(t*i),s,s);x.rotate(T(i*Math.PI/9))}

Feb 22 2017 10:08 PM UTC

}// 140/140

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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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recursive

remix of d/887 by u/New_Core

function u(t) {

t||((I=new Image()).src="https://is.gd/aYk0fZ")
x.fillRect(0,0,z=5e5,z)
for(i=960;i--;)x.drawImage(I,0,t*60-z/(250+i),w=640,1,w-i,i,w+i*2,1)

Feb 22 2017 6:42 PM UTC

}// 140/140

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Got a black backgrounhd

u/lionleaf

Awesome! Give it some time to start ;)
u/New_Core

nice =)

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iverjo

remix of d/123 by u/icecuber

function u(t) {

i=frame;for(j=1080;j--;){a=b=0;for(k=35;k--&&a*a+b*b<4;)c=a*a-b*b+i/540-2,b=2*a*b+j/540-1,a=c;x.fillStyle=R(k,j,i);x.fillRect(i,j,1,S(k/9))}

Feb 22 2017 6:10 PM UTC

}// 140/140

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Color version, a minified version of myJS's suggestion

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u/bakkot

golf'd slightly harder on general principles: i=frame;for(j=1080;j--;x.fillRect(i,j,1,S(k/9),x.fillStyle=R(k,j,i)))for(a=b=0,k=35;k--&&a*a+b*b<4;a=c)c=a*a-b*b+i/540-2,b=2*a*b+j/540-1
u/donbright

niiiice
u/Krachwumm

This is freaking amazing. Even if it would have taken you 1000 characters
u/iverjo

Thanks bakkot! I golfed your version even further down to 134 characters: for(j=1080;j--;x.fillRect(i=frame,j,1,S(k/9),x.fillStyle=R(k,j,i)))for(a=b=0,k=35;k--&&a*a+b*b<4;a=c)c=a*a-b*b+i/540-2,b=2*a*b+j/540-1
u/iverjo

Feel free to play with the colors! There's room for improvement
u/hamptonio

That's a work of art man
u/SpecialAgent

I must commend you! Did my research and got a working mandelbrot, but to golf it to 140 and get the speed is very very difficult! Wow. I will study your dweet now :)
u/iverjo

#fractal
u/iverjo

#mandelbrot
u/iverjo

#slow_render
u/f8f82804

#scanline

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recursive

function u(t) {

for(X=0;X<2e3;X+=64)for(Y=0;Y<2e3;Y+=64)x.fillStyle=R(d=300-((Y-540-200*C(t))**2+(X-960-200*S(t))**2)/2e3,d-64,d+128),x.fillRect(X,Y,64,64)

Feb 22 2017 5:54 PM UTC

}// 139/140

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mxfh

remix of d/849 by u/mxfh

function u(t) {

r=480;c.width=r*4;λ=0;for(φ=a=Math.PI/2;φ>-a;φ-=1/r){λ+=a;x.lineTo(C(φ)*S(λ-t)*r+2*r,(C(t=t+1/r)*S(φ)+S(t)*C(φ)*C(λ-t))*r+r)}x.stroke()

Feb 22 2017 1:25 PM UTC

}// 135/140

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u/chrishaff

Old school cool!
u/ninerdelta

wow this is awesome
u/donbright

lovely
u/sfz

how in the
u/Drum

I've been clickcing 'awesome' on quite a few examples here, but this one is AWESOME!
u/Kalanchoe

Wow!
u/Brutal

Higher math :)
u/robvoodoo

If only you could fly the camera around!
u/Lazy1337

#d3

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