Dweets awesomed by u/zkfrontman

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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TylerCross

remix of d/4689 by u/TylerCross

function u(t) {

c.width|=0
  for(i=0;i<192;i++)
for(y=1;y<11;y++)
  x.fillRect(i*10,100+y*y*10.5+(C(i*0.5/y-t*2+y)+S(t-(y*y)/15))*y*10, 5, 5)

Dec 29 2017 7:20 PM UTC

}// 126/140

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u/mohd-akram

Love this.
u/joeytwiddle

#ocean #waves

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tjl

function u(t) {

x.fillText(c,1e3,9);x.filter='saturate(116%)hue-rotate(15deg)contrast(95%)sepia(1%)';x.setTransform(1,0.01,-0.01,1,5,-8);x.drawImage(c,0,0);

Dec 29 2017 6:02 PM UTC

}// 140/140

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NB: Results vary between browsers. Tested on Linux Chrome and Firefox, different but cool results on both.

u/Xen

nice
u/coltonb

who put this acid in my coffee
u/ctrlx

(Shhhhh, or everyone will want some of your coffee! :P )

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E-Mouse

remix of d/4342 by u/retera

function u(t) {

c.width=w=1920
v=t+400
for(q=255;q--;){x.fillStyle=R(q,q,q);x.beginPath();x.arc(w/2+T(v-q)*(v+q),540+S(v-q)*(v-q),40,0,6.283,!1);x.fill()}

Dec 29 2017 5:15 PM UTC

}// 138/140

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mnt

remix of d/3030 by u/New_Core

function u(t) {

x.globalAlpha=.2;for(x.fillRect(0,0,2e3,2e3),W=j=980;--j;x.clearRect(W+S(p=t+j-5.3*V)/Z*W-Z*-9,540+C(p)/Z*W,s=60/Z,s))Z=j%18-t*5+(V=t*6|0)

Dec 29 2017 5:14 PM UTC

}// 138/140

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tunnel slowly fades away

u/katkip

#tunnel

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E-Mouse

remix of d/4136 by u/Exca

function u(t) {

t/=4;for(i=0;i<1100;i++){d=C(t+i),s=i==0?2920:9-d*8;x.fillStyle=R(i,i,i,0.1);x.fillRect(S(t*2.5+i)*220*T(C(t)+i%50)+960*(i==0?-1:1),i,s,s);}

Dec 29 2017 5:10 PM UTC

}// 140/140

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hadrielsm

remix of d/4611 by u/hadrielsm

function u(t) {

for(i=0;i<1920;i+=30)for(j=0;j<1080;j+=30){g=.2*j;x.fillStyle=R(0,0,g);if(54*(C(i+t)+1)/2>j/20){x.fillStyle=R(g,0,99)}x.fillRect(i,j,30,30)}

Dec 29 2017 3:53 PM UTC

}// 140/140

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ben

remix of d/4509 by u/ben

function u(t) {

v=(a,b,g,r)=>{for(i=0;i++<r;)x.fillRect(a+=S(g),b-=C(g),r/9,2)
r>1?v(a,b,g+=o,r*=.7)&v(a,b,g+=5,r):0}
o=S(t)/9+1
c.width=500
v(250,280,0,80)

Dec 29 2017 1:23 PM UTC

}// 140/140

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blowing in the fractal wind

Show more comments…
u/sigveseb

Sweet!
u/Xen

very nice!
u/Bendoman

Fabulous.
u/lionleaf

Amazing!
u/lynnlangit

love, love, love it!
u/nystrand

elegant!
u/iverjo

#recursive
u/lionleaf

#fractals
u/lionleaf

#fractal . hmm, maybe not plural
u/vain

so beautiful - amazing work!

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JoshiRaez

remix of d/4660 by u/JoshiRaez

function u(t) {

c.width|=0;for(i=0;i<19; i++){for(j=-3; j<=3; j=j+0.125){x.fillRect(960+C(t+i+j)*540*C(Math.abs(j/2)),540+540*S(j/2),100,10);}}/*wut*/

Dec 29 2017 12:47 PM UTC

}// 134/140

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Flopster

function u(t) {

w='white'
for(i=23;i--;)for(j=13;j--;)v=(j<7&&i<11?(i+j)%2?R(0,0,220):w:j%2?w:'red'),x.fillStyle=v,x.fillRect(i*83,j*83+S(t*2+i/3)*7,83,83)

Dec 29 2017 12:41 AM UTC

}// 139/140

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quuxman

function u(t) {

for(i=1e4;i--;x.restore())a=i%2?0:i%45,x.fillStyle=R(a,a,a*6,.3),x.save(),x.translate(i%201*40,i/9),x.rotate(i%99/9+t),x.fillRect(0,0,40,40)

Dec 28 2017 11:24 PM UTC

}// 140/140

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Thanks to u/Xen for code reduction help

u/Xen

we're all here to help each other, you're very much welcome.

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