Dweets awesomed by u/leSchieber

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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katkip

function u(t) {

for(i=0;i<300;i++)h=(i+t*t/2)*28%360,x.fillStyle=`hsl(${t+h/3},99%,50%)`,x.fillRect(i%20*99,~~(i/20)*99,h*t,t*h)

Aug 4 2018 10:40 AM UTC

}// 112/140

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Idea from d/1787

u/lionleaf

Cool! Shy not post as a remix?
u/lionleaf

Why*
u/katkip

Oh good point.

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pythech

remix of d/8630 by u/pythech

function u(t) {

c.width|=0
with(x)for(i=3;i--;stroke())beginPath(lineWidth=r=200*S(t/2)+300),arc(650+250*i,700-i%2*434,(1+C(t))*r*2,z=i*2.095,5.235+z)

Jun 17 2018 8:44 PM UTC

}// 134/140

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u/dorukcakmakci

very nice

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leSchieber

function u(t) {

(d=(a,b,n,r)=>{a=a-n/2;b=b-n/2;x.fillRect(a,b,n,n);let m=n/2;if(--r){d(a,b,m,r);d(a+n,b,m,r);d(a,b+n,m,r);d(a+n,b+n,m,r)}})(960,540,500,7)

Jun 16 2018 6:06 PM UTC

}// 138/140

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u/lionleaf

#fractal
u/zanella

Fractals always get my awesome. :)
u/katkip

Indeed

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leSchieber

function u(t) {

s=5;l=250;w=c.width=1920;h=c.height-l;r=1000;for(i=w/s;i--;){v=(t+i/w*s*r)%r;x.fillRect(w/r*v,(h/r*v+S(v*2*Math.PI)*100),s,300)}

Jun 16 2018 4:26 PM UTC

}// 128/140

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Tesseract

function u(t) {

x.strokeStyle=R(9,t?(i+=2)/9:i=0,0,.3)
for(j=3e3;j--;x.beginPath(x.stroke()))l=(k=i|j)&-k,x.arc(j,i,(x.lineWidth=l/(l&i&j?.707:1))/18,0,7)

May 25 2018 5:26 AM UTC

}// 138/140

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#fractal

u/Tesseract

Arc radius and line width are semi-interchangeable

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zanella

function u(t) {

c.width|=0;m=h=960;n=v=540;s=0;for(i=4e3;i--;){s=(s+3*Math.random()|0)%4;o=1.57*s;m=(m+h+v*C(o))/2;n=(n+v+v*S(o))/2;x.fillRect(m,n,9,9)}

Jan 10 2018 8:34 PM UTC

}// 136/140

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Chaos games are fun! https://en.wikipedia.org/wiki/Chaos_game

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nystrand

function u(t) {

for(i=w=3e3,a=b=g=333*T(t%9/7);j=(i^a*a)%4,i--;x.fillRect(a+=g+C(j*5+t)*g-a/2-w+g,b+=g+S(j*9+t)*g-b/2-w,s,s),w=2)x.fillStyle=R(s=w*9,w,s,.1)

Dec 28 2017 2:50 PM UTC

}// 140/140

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Show more comments…
u/sigveseb

This one is fantastic! Good job indeed
u/Bendoman

Brilliant!
u/Xen

very very impressive!
u/magna

HOW ON EARTH
u/nic

MIND:=BLOWN
u/lowpoly

Gawd, I learnt a lot today
u/Citiral

Since when does Javascript support black magic?
u/sigveseb

Needs more upvotes!
u/doof

this was such a delight to unpack :)
u/Lazy1337

wow
u/aleamb

amazing
u/iverjo

I'm awestruck
u/xem

unbelievable
u/trapkid

lol
u/aleamb

epic! one of the greatest dwitter
u/ThreeNPlusOne

sierpinski triangle :D
u/xem

It'd be nice to have a blog post explaining it :) (please?)
u/trupples

I didn't look much into it but it might have to do with a thing I read about once where if you have a point that "walks" half the distance towards a random corner of a triangle you'll end up drawing a sierpinski triangle sorta like you can see in https://www.dwitter.net/d/5097
u/trupples

And according to http://distrustsimplicity.net/articles/sierp… if you were to use 4 points instead of 3 you'd get a tetrahedron like in this dweet. Fascinating stuff
u/stiaje

#witchcraft
u/lionleaf

#top_of_the_year
u/Scaledish

wow
u/Tekmap

👏👏👏👏👏
u/vain

that's not from this world! incredible code / 3d fx and blur
u/rodrigo.siqueira

3D flying #sierpinski pyramid #fractal

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