Dweets awesomed by u/pavel

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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taupelink

remix of d/20591 by u/taupelink

function u(t) {

r=Math.random;for(i=k=214;i--;x.fillRect(k*X,k*Y,i/t,i/t))X=r(Y=r()*5)*9,h=k*S(C(C(S(p=Y*S(q=2-X/3)/2)))),x.fillStyle=R(h*p,h*q,2*h*C(p/q))

Nov 16 2020 1:49 AM UTC

}// 139/140

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d/20630

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pavel

function u(t) {

with(x)for(c.width|=i=78,translate(960,540);j=i*i--/5;rotate(!fillRect(j+=(S(t-j/99)-1)*1e5/j,j*=j>0,j*=-2,j)))fillStyle=R(89,a=222-j/4,2*a)

Nov 14 2020 4:47 AM UTC

}// 140/140

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Generative art by Alexander Tabakov

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pavel

function u(t) {

for(c.width|=i=8;--i;)for(w=j=3<<i-1;j--;x.fillRect(-!x.rotate(6.283/w*(j+i/(1+5**(4+i-t%3*5)))),-25*i,2,25))x.setTransform(3,0,0,3,960,540)

Nov 11 2020 8:56 PM UTC

}// 140/140

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#beesandbombs

u/pavel

https://twitter.com/beesandbombs/status/1326…
u/pavel

#symmetry
u/donbright

nnnnnnice

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pavel

remix of d/15161 by u/KilledByAPixel

function u(t) {

for(c.width|=j=9;j--;x.fill())for(x.beginPath(i=6);i--;x.arc(960+r*C(b=.785*(2*j-o)-t),540+r*S(b),120,a=i/.96-o*2*t,a))o=j>4,r=o?223:j&&315

Nov 10 2020 11:11 PM UTC

}// 139/140

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#uncompressed #symmetry

u/Xen

nice!
u/donbright

how.....

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pavel

function u(t) {

for(c.width=960,j=8;j--;)for(i=20;i--;)x.arc(480,270,2**((i>>1)+i%2/2-j%2/2+t/3%1),a=(j+i%2)*Math.PI/4,a);x.fill()

Nov 10 2020 12:47 AM UTC

}// 114/140

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Infinite Triangles by MDWoolls

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geb

remix of d/20532 by u/ntsutae

function u(t) {

X=1e3,Y=X/2
for(c.width|=i=2e3;i--;x.fillRect(X+=C(d*=11/7),Y+=S(d),5,5),x.fillRect(2e3-X,1e3-Y,5,5))d=S(S(i/120+t-i/99))*3

Nov 9 2020 5:29 PM UTC

}// 124/140

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ntsutae

function u(t) {

X=1e3,Y=X/2
for(c.width|=i=2e3;i--;x.fillRect(X+=C(d*=Math.PI/2),Y+=S(d),9,9),x.fillRect(2e3-X,1e3-Y,9,9))d=C(i/120+t/5-S(i/99-t/3))*4^0

Nov 9 2020 12:15 PM UTC

}// 137/140

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inspired by https://twitter.com/satoshi_aizawa/status/12…

u/geb

#symmetry

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geb

remix of d/20524 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`sepia(`
!t&&x.translate(960,540)
if(t<1.4)x.lineWidth=6/t,x.rotate(t/9),d=360*(1-1/S(t))
x.strokeRect(-d,-d,2*d,2*d)

Nov 9 2020 11:30 AM UTC

}// 132/140

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ciaccodavide

remix of d/20392 by u/ciaccodavide

function u(t) {

P=16-~~(S(t)*9)
for(K=0;K<960/P;K++)x.fillStyle=R(g=66+96*Math.random()*.02*K,g*.7,g*2),
x.fillRect(K*P,0,1920-P*K*2,P)
x.drawImage(c,0,P)

Nov 9 2020 8:56 AM UTC

}// 138/140

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Procedural #symmetry Generation

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rodrigo.siqueira

remix of d/20499 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`sepia(`
!t&&x.translate(960,540)
if(t<1.5)x.lineWidth=2/t,x.rotate(t/9),d=360*(1-S(t))
x.strokeRect(-d,-d,2*d,2*d)

Nov 8 2020 8:47 PM UTC

}// 130/140

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Framed flower #spiral

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