Dweets awesomed by u/surasshu

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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Current theme challenge: #Opposites

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hamptonio

function u(t) {

c.width=1920;for(i=0;i<t;i+=.005){x.lineTo(960+300*(2+C(3*(i+t)))*C(i+t+S(i*t)),540+180*(2+S(3*(i+t)+S(i)))*C(i+t+S(t)+S(i)));};x.stroke()

Feb 25 2017 5:18 AM UTC

}// 138/140

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iverjo

remix of d/75 by u/iverjo

function u(t) {

/* LOOK MA, I HAVE ENOUGH SPACE FOR A VEEERY LONG COMMENT! */
c.width^=0;for(i=24;i--;)x.fillRect(960+22*i*C(a=t*i/8),520+22*i*S(a),2*i,2*i)

Feb 25 2017 1:36 AM UTC

}// 140/140

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u/gormisdomai

This is so pleasing to watch!
u/iverjo

My comment is yuge. It is the largest ever. People love it bigly.
u/sigveseb

lol that comment tho
u/iverjo

Golfed: /* LOOK MA, I HAVE ENOUGH SPACE FOR A VEEERY LONG COMMENT! */ for(c.width+=i=0;i<48;i+=2)x.fillRect(960+11*i*C(a=t*i/16),520+11*i*S(a),i,i)
u/AstonC

Tremendous!
u/iverjo

#spiral

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hamptonio

remix of d/1203 by u/vegolasse

function u(t) {

q=43;function a(r){x.arc(q+S(r/3)*400,q+S(r/2)*730,i,0,6.283);x.closePath()}c.width=q*q;for(i=0;i<q*q;i+=9){a(t);a(S(t))};x.fill("evenodd")

Feb 25 2017 1:10 AM UTC

}// 140/140

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seems like that evenodd method could do some other cool shit

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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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walsh9

function u(t) {

O=[],Z=z=>R(y=255*S(z/32),y,y+128);for(i=1e4;i--;)d=i%128*15,e=i/128|0,x.fillStyle=Z((S(d/64)+S(e/4)+t)*99),x.fillRect(d,e*16,16,16)

Feb 23 2017 2:55 AM UTC

}// 132/140

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u/donbright

love the color scheme
u/walsh9

whoops left some junk at the beginning. not even using that array.
u/iverjo

Beautiful
u/sigveseb

Very pretty
u/Kalanchoe

Trippy yet so relaxing

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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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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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Show more comments…
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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New_Core

function u(t) {

b=a=c.width=500;for(i=a*5;i--;)g=i%(h=b+9*S(t))>h/2?0:b,x.fillRect(g+i%13*b*2-1*i*.6+(b*8*S(t*.5))%b*2,150+i*.05,b=20+i*.05,1)

Dec 31 2016 12:13 PM UTC

}// 126/140

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u/iverjo

Awesome :D
u/iverjo

This dweet reminds me of the Windows 3.1 chess background image: http://i.imgur.com/Zv5eBRk.png
u/New_Core

#checkerboard

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New_Core

function u(t) {

c.width=500;for(i=40;i--;)x.beginPath(),x.arc(250+30*S(a=t+i%2),125+30*C(a*.8),21*(i%19),0,7),x.lineWidth=17,x.strokeStyle=R(i*8),x.stroke()

Oct 9 2016 3:06 PM UTC

}// 140/140

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u/iverjo

Rad!

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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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Show more comments…
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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