Dweets awesomed by u/robot0001

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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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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veubeke

function u(t) {

c.width^=0;for(i=1312;i--;x.fillRect(i%32*16,b*16,16,16))b=i>>5,x.fillStyle=R(0,0,0,2-S(r=Math.acos(i/16%2-1))-!!(b%4&&(r*12+t&31)+b-b%4&7))

Feb 17 2017 11:22 PM UTC

}// 140/140

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iverjo

function u(t) {

for(i=0;i<2400;i++)x.beginPath(),x.arc(960+i*C(i/20),540+i*S(i/20)/3,29+i*i/2e4,0,7),x.fillStyle='#'+['000','A0E','FFF','9F0'][i%4],x.fill()

Jan 28 2017 10:00 PM UTC

}// 140/140

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Optical illusion: Go fullscreen and glance at the different parts of the image. As you move your eyes, it may seem like other parts of the image moves slightly.

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u/iverjo

This needs a large and bright display to work
u/donbright

lol i kept looking for 't' in your code, not there!
u/iverjo

Haha!
u/CliffJonesJr

I love these illusion dweets. Nice!
u/iverjo

Thanks :)
u/iverjo

#opticalillusion

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iverjo

function u(t) {

c.width=960;for(i=26;i--;)d=(i+3*t)%26,I=C(d*.7)>0?1:0,x.beginPath(),x.arc(480,270,I?(d*22):(600-d*22),0,6.4),x.lineWidth=12,x.stroke()

Jan 28 2017 9:13 PM UTC

}// 135/140

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Optical illusion: Go fullscreen and stare at the center for 15-30 seconds. Then look down at your keyboard. Notice anything unusual?

u/iverjo

129 characters: c.width=960;for(i=26;i--;)d=(i+3*t)%26,I=C(d*.7)>0?1:0,x.beginPath(),x.arc(480,270,I?d*22:600-d*22,0,7),x.lineWidth=12,x.stroke()
u/iverjo

#opticalillusion

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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

remix of d/50 by u/iverjo

function u(t) {

k=260;c.width=2e3;for(i=9;i++<5*k;)p=t+i/k+i%8*5,s=3/(10-p%9),x.beginPath(),x.arc(79*T(p*S(t/9)+1)+i%8*k,550*s,49*s*S(i/k),i,i+7),x.stroke()

Jan 14 2017 4:28 PM UTC

}// 140/140

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u/hamptonio

Its like a C.elegans dance party.
u/CliffJonesJr

Leeches!!!

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iverjo

remix of d/334 by u/iverjo

function u(t) {

c.width=960;for(i=20;i--;)for(j=12;j--;)x.fillRect(50*i-9*S(A=4*t+i*C(t/8)*.6+j*S(t/8)*.4),50*j+9*C(A),W=25+C(A)/.3,W),x.fill()

Jan 14 2017 4:18 PM UTC

}// 127/140

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iverjo

remix of d/598 by u/iverjo

function u(t) {

c.width=1920;for(i=-2;i<2;i+=.05)for(j=-4;j<4;j+=.05)X=j-3*S(t),Y=i+C(t),1/(j*j+Y*Y)+1/(X*X+i*i)>1&&x.fillRect(j*240+960,i*240+540,12,12)

Jan 14 2017 3:56 PM UTC

}// 137/140

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u/nickd3000

A weird remix https://www.dwitter.net/d/6361
u/iverjo

#metaballs

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Run

function u(t) {

c.width=1920;for(i=0;i<1257-1256*C(t/5);i++){x.fillRect(960+500*S((i+t)/25),540+500*C((i+t)/16),10,10)}

Jan 14 2017 3:35 PM UTC

}// 103/140

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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

dwitter.net | robot0001 (2828)