Dweets awesomed by u/lowpoly

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: #ScaryMovies

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lowpoly

remix of d/4357 by u/lowpoly

function u(t) {

i=c.width=2e3,x.fillRect(0,0,i,i),x.fillStyle='#fff';for(p=i;p--;)d=S(t/10)+2,x.fillRect((p+(t+i))%i,(''+p*T(p)/i).substr(-3)/999*i,d,d)

Dec 28 2017 2:51 PM UTC

}// 136/140

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If you gaze long into an abyss, the abyss also gazes into you.

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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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jbl

function u(t) {

c.width|=0;for(i=2e3;--i;){p=t-i;d=i/9;x.fillStyle=R(d,0,0,S(p));x.fillRect((C(p)*850)%2e3+S(t)*500+990,(i*11+t*99)%2e3-99,S(p)*90,90)}

Dec 28 2017 12:13 PM UTC

}// 135/140

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u/sigveseb

Nice sense of scale
u/Xen

love it
u/Xen

done you a remix: #4403
u/jbl

thanks!
u/Xen

very welcome ;-)
u/vain

Looks like some bumpmapped tower. Very impressive! Great work!

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trabbt

function u(t) {

w=c.width|=0,x.translate(w/2,500);for(i=0;i<10;i++)a=C(t+i),x.fillStyle=R(90,60,90+90*a*a,.2),x.arc(S(i)*800,C(i)*300,a*a*200,0,6),x.fill()

Dec 28 2017 11:04 AM UTC

}// 139/140

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u/sigveseb

Great style!
u/nystrand

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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lowpoly

function u(t) {

c.width+=0;for(p=2E3;p--;)d=p/300+1,x.fillRect((p+100*(t+5E4)*d)%2E3,(""+p*S(p)/17).substr(5,3)/999*2E3,d,d)

Dec 28 2017 10:05 AM UTC

}// 108/140

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Scrolling stars or something

u/ben

remixed a bit funkier! d/4878
u/lowpoly

@ben, wow, nice :)

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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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retera

remix of d/4330 by u/retera

function u(t) {

c.width|=0
s=480;for(q=0;q++<40;){for(j=0;j++<10;){a=q+t;x.fillStyle=R(j*25,q*8,0);x.fillRect(C(a)*s*C(j+t)+960,S(a)*s*C(j-t)+540,9,9)}}

Dec 28 2017 8:15 AM UTC

}// 136/140

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Yax

function u(t) {

c.width|=0
a=300
for(i=a;i--;)
b=t/2+i,x.fillStyle=R(a,b),x.fillRect(i*10,700+a*Math.abs(S(b)),25,a),x.fillRect(a*5+i*C(b),a+i*S(b),25,25)

Dec 28 2017 12:16 AM UTC

}// 138/140

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u/sigveseb

Very stylish!
u/magna

Wow!
u/iverjo

#sun
u/joeytwiddle

#landscape #ocean #sunset

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Xen

remix of d/4214 by u/lowpoly

function u(t) {

(s=>{for(;a<2e3;a+=s)for(b=0;b<=1e3;b+=s)x.fillRect(a,b,s*C(b+t),s*S(a+t),x.fillStyle=`hsla(${(a+b)*S(t)},50%,50%,.1)`)})(a=48+C(t))

Dec 28 2017 12:16 AM UTC

}// 132/140

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