Dweets awesomed by u/PhiLho

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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iverjo

function u(t) {

c.width=198;x.translate(99,56);for(i=0;i<6.3;i+=.01)r=50*S(i*8*S(t/9)),x.lineTo(r*C(i),r*S(i));x.stroke()

Jul 20 2016 3:16 AM UTC

}// 105/140

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I just discovered that mathematicians call this a rose. See https://en.wikipedia.org/wiki/Rose_(mathemat…

u/iverjo

#rose #flower

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3bl3gamer

function u(t) {

c.width=3;c.height=1;d=x.getImageData(0,0,3,1);p=d.data;p[3]=p[7]=p[11]=255;k=S(t*10)*255;p[0]=k;p[10]=-k;x.putImageData(d,0,0)

Jul 20 2016 12:53 AM UTC

}// 127/140

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yellcorp

function u(t) {

n=40;x.globalAlpha=.5;x.drawImage(c,-n,-n,2e3,1160);x.fillStyle=R(99+99*C(t),0,99+99*S(t*=5));x.fillRect(960+C(t*=.7)*n,540+S(t*1.3)*n,n,n);

Jul 19 2016 11:48 PM UTC

}// 140/140

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u/iverjo

Sweet!

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3bl3gamer

function u(t) {

window.i||(i=new Image(),i.src="http://imgur.com/3tEWez4.png");c.width=300;x.translate(150,90);x.rotate(t);x.drawImage(i,-89,-89)

Jul 19 2016 11:25 PM UTC

}// 129/140

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3bl3gamer

remix of d/226 by u/3bl3gamer

function u(t) {

c.width=256;for(a of[2,-2,2]){x.translate(63,36);x.beginPath();for(i=0;i<7;i+=.01)r=18-a+S(i*9+t*a)*3<<1,x.lineTo(r*C(i),r*S(i));x.stroke()}

Jul 19 2016 10:43 PM UTC

}// 140/140

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u/iverjo

#satisfying

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sigveseb

function u(t) {

N=x.shadowBlur=1e3;x.fillStyle=x.shadowColor=R((1+S(t))*127,(1+S(t+1))*127,(1+S(t+2))*127);x.fillRect(960+S(t)*N*C(t/9),540+C(t)*299,99,99)

Jul 19 2016 9:53 PM UTC

}// 139/140

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u/iverjo

Nice blur!

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3bl3gamer

function u(t) {

r=Math.random;x.globalCompositeOperation='xor';x.fillRect(r()*1920,r()*1080,128,128)

Jul 19 2016 8:56 PM UTC

}// 84/140

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u/iverjo

It's mildly interesting to see how this converges to a greyish texture
u/katkip

true

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ocasta181

remix of d/134 by u/icecuber

function u(t) {

c.width=1920;for(i=999;i--;)for(j=24;j--;)t+=1.7,s=S(t)*((j+i&1)*2-1),x.setTransform(C(t/2),s,-s,C(t*2),i*9,j%12*99),x.fillRect(-9,-99,19,9)

Jul 2 2016 12:19 AM UTC

}// 140/140

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u/PhiLho

Fascinating...

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ocasta181

remix of d/133 by u/lionleaf

function u(t) {

c.width=2e3;x.translate(980,450);for(i=0;i<392;)x.fillStyle=R(i,0,S(t)*190),x.rotate(!i*C(t-=.01)+!(i++%4)*S(t)|t),x.fillRect(5*i,5/t,i*t,i)

Jun 20 2016 10:01 PM UTC

}// 140/140

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chunnoo

remix of d/182 by u/chunnoo

function u(t) {

t++;x.beginPath();r=128*t;w=960;h=540;p=24*Math.PI*t+t;q=p/60/t;x.moveTo(r*C(p-q)+w,r*S(p-q)+h);x.lineTo(r*C(p)+w,r*S(p)+h);x.stroke()

Jun 8 2016 6:31 PM UTC

}// 134/140

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