Dweets awesomed by u/mohd-akram

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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Xen

remix of d/4281 by u/ebiester

function u(t) {

c.width|=s=S(t)
x.translate(960,o=480)
for(i=o;i--;x.rotate(C(t/2)/i*t))x.fillStyle=R(i*C(t)*2,i,o),x.fillRect(i*6*s,i*6*s,i*2,i*2)

Dec 28 2017 6:09 PM UTC

}// 131/140

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Shoutz to ebiester.

u/ebiester

That's fantastic!
u/ebiester

Remixed your remix at #4550
u/Xen

thanks :-)

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Cecidi

function u(t) {

c.width^=0;for(j=1;j<99;j++){for(i=0;i<9;i++){x.beginPath();e=2*i*3.1415/9+j*t/50;x.arc(960+j*C(e)*12,540+j*S(e)*12,j,0,2*3.14);x.fill()}}

Dec 28 2017 5:24 PM UTC

}// 138/140

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u/nystrand

oh nice!
u/iverjo

#spiral

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ADESONOM

function u(t) {

c.width=1920;for(i=1;i<500;i++){X=10*(i-t*40+1e9)%1500;x.fillRect(960+S(i)*X,520+C(i)*X,s=(C(i*10)*15),s);x.fillStyle=R(0,0,X);}

Dec 28 2017 5:11 PM UTC

}// 130/140

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Black hole? Or a cloth being pulled through a hole...ask lionleaf for some interpretations

u/lionleaf

*clenching motion*
u/lionleaf

Try staring at this for a long time and then look away ;)

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ellisk1

function u(t) {

c.width|=0;a=50;x.fillRect(950,1e3*T(t+10),a,a);for(i=0;i<a;i++)x.fillRect(i*a,1100,a,-200+.1*S(t)*(i*(39-i)*S(a*Math.abs(i-19)+10*t)))

Dec 28 2017 4:25 PM UTC

}// 135/140

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u/Xen

cool idea
u/joeytwiddle

#water #drop #waves

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nic

function u(t) {

for(i=255;i>=0;i--){
x.fillStyle=R(i,i,255)
x.fillRect(900+800*S(t-i/255)-i/128, 500+200*C(5.14*(t-i/255))-i/128, 50+i/64, 50+i/64)
}

Dec 28 2017 2:54 PM UTC

}// 133/140

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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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joel1411

function u(t) {

c.width+=0;for(i=2000;i--;)x.fillStyle=R(250,100*C(i/40),100*S(i/40)),x.fillRect(900+400*S(i/40),i/2+4*S(30*t+i/600)*i*(2000-i)/100000,9,9)

Dec 28 2017 2:21 PM UTC

}// 139/140

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JonasPeeters

function u(t) {

c.width=998;x.moveTo(499,280);q(10,0,499,280);x.stroke();function q(l,a,m,n){x.lineTo(d=m+S(a)*l,f=n+C(a)*l);if(l<1000){q(l+10,a+t/10,d,f)}}

Dec 28 2017 12:07 PM UTC

}// 140/140

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Wait for it.

u/mohd-akram

Beautiful.

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lowpoly

remix of d/4348 by u/lowpoly

function u(t) {

i=2e3,c.width=i,x.fillRect(0,0,i,i),x.fillStyle='#fff';for(p=i;p--;)d=p/500,x.fillRect((p+d*50*(t+i))%i,(''+p*T(p)/i).substr(-3)/999*i,d,d)

Dec 28 2017 11:00 AM UTC

}// 139/140

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Scrolling stars that look more like stars :) Now to add sine functions or something.

u/Xen

x.fillRect(0,0,c.width=p=i=2e3,i)
u/lowpoly

yeah, i usually do something like i=c.width=2e3 now :P

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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+C(v-q)*(v+q),540+S(v-q)*(v-q),40,0,6.283,!1);x.fill()}

Dec 28 2017 8:54 AM UTC

}// 138/140

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u/Xen

nice style
u/geb

#background
u/vain

well done!

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