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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recursive

remix of d/778 by u/recursive

function u(t) {

for(c.width|=d=0;d<256;d+=.1)x.lineTo(a=7*d*C(d*1.1+t)+960,b=7*d*S(d)+540),x.lineWidth=(256-d)**2>>10,x.stroke(),x.beginPath(),x.moveTo(a,b)

Feb 22 2017 6:07 AM UTC

}// 140/140

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recursive

function u(t) {

for(c.width|=d=0;d<256;d+=.1)x.lineTo(a=7*d*C(d+t)+960,b=7*d*S(d)+540),x.lineWidth=(256-d)**2>>10,x.stroke(),x.beginPath(),x.moveTo(a,b)

Feb 22 2017 5:15 AM UTC

}// 136/140

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gaganjakhotiya

remix of d/739 by u/donbright

function u(t) {

c.width=900;半=450;for(i=0.0;i<360;i+=1){x.lineTo(半+C(i*(t+0.5)/10)*i,半*9/16+S(i*t/10)*i)};x.stroke();

Feb 22 2017 5:05 AM UTC

}// 101/140

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u/donbright

oh wow!
u/dperini

illuminati confirmed

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donbright

remix of d/479 by u/lionleaf

function u(t) {

c.width=256;for(i=128;i--;)for(j=128;j--;){r=i*i-j*j;g=2*i*j;b=i*i+j*j;x.fillStyle=R(Math.abs(t*r)%256,0,0);x.fillRect(64+i,8+j,1,1)}

Feb 22 2017 4:06 AM UTC

}// 133/140

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Circles and Squares style pseudo fractal inspired by "red quadrance" from Wildberger's chromogeometry (x*x-y*y)

u/chrishaff

moire ole

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fufuhaaa

remix of d/757 by u/fufuhaaa

function u(t) {

c.width=600;x.font='30px a';for(i=0;i<20;i++){for(j=0;j<11;j++){x.fillText('❤️💛💚💙💜'.substr(((2+2.5*S(i+j+t*6|0))|0)*2,2),i*30,j*30);}}

Feb 22 2017 3:40 AM UTC

}// 134/140

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u/donbright

awesome unicode
u/iverjo

#hearts

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caleb

function u(t) {

x.fillText(String.fromCodePoint(0x1F300+(Math.random()*0x130)|0),Math.random()*c.width-40,Math.random()*c.height);x.font="80px arial";

Feb 22 2017 3:04 AM UTC

}// 134/140

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u/boriel

Where's Wally?

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donbright

function u(t) {

c.width=900;半=450;for(i=0.0;i<360;i+=1){x.lineTo(半+C(i*t/10)*i,半*9/16+S(i*t/10)*i)};x.stroke();

Feb 22 2017 2:31 AM UTC

}// 95/140

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Show more comments…
u/lionleaf

Starts off nice looking and becomes extremely trippy and hypnotic!
u/inviso

mesmerizing
u/ilSilvano

wow that escalated quickly.
u/elanimus

someone tell me how to run this please
u/Xen

Golfed and tweeked, #2909 ;-)
u/sparr

This is a browser glitch, right? It only looks cool because the browser starts using too few segments to draw the spiral. Would be boring in a fixed browser.
u/Haabilo

@sparr Not really a glitch. The code uses lineTo as means to straw the lines. It also sets the maximum amount 5
u/Haabilo

...of the segments. Damn, I didn't think mistapping backspace on mobile would send the comment as-is...
u/ArtsyBiker1

Awesome
u/blackvitriol

welcome to time travels :)
u/hoppla1232

Sir Moire apprecetiates this
u/Freak

This is like one of those nightmares I have where everything keeps on getting faster and it scares me and I love it
u/joeytwiddle

This is for me the definitive dwitter dweet #spiral
u/geb

#background

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Kalanchoe

function u(t) {

θ=c.width=1e3;x.strokeStyle='#4f5';r=(17+S(t)/157)/7;p=(θ,F)=>190*(F(θ)-F(θ*r)/r);while(θ>0)x.lineTo(p(θ-=.1,C)+500,p(θ,S)+281);x.stroke()

Feb 22 2017 12:40 AM UTC

}// 138/140

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Homestuck!

u/Kalanchoe

Also, shout-out to Hacker News.

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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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Show more comments…
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

remix of d/89 by u/iverjo

function u(t) {

c.width=2e3;for(i=5e3;i--;)p=3*t+S(t/8)*i/3e3+i%4/2,d=C(p)-S(p),d>0&&x.fillRect(960+199*S(p)+249*S(t/.7+i/6e3),i/4-2,299*d,1/(d+1))

Jan 14 2017 4:31 PM UTC

}// 131/140

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