Dweets awesomed by u/ben

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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Opposites

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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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ben

function u(t) {

x.fillStyle=R(255*S(t)**4,80,255*C(t)**2)
x.translate(999,500)
x.rotate(t/99)
x.fillRect(Math.floor(t)%9*50,0,50,20)
x.translate(-999,-500)

Dec 28 2017 2:19 PM UTC

}// 139/140

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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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xem

function u(t) {

for(Q=O=1920;Q--;x.fillStyle='#'+I*12,x.fillRect(Q,t*60,1,!!I))for(V=W=0,I=99;--I/V;W=Z+Z+_/8e5-1.25)Z=V*W,V=V*V-W*W+(_=Q+t*60*O)/640%3-2.15

Dec 28 2017 9:55 AM UTC

}// 140/140

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Colored, progressive, Mandelbrot tracer. Dwitted with the great help of @veubeke. Even cooler in fullscreen! More info and credits on https://github.com/xem/miniMandelbrot/

u/Xen

Loving the detail :-)
u/E-Mouse

Xem and Xen, confused af

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space_hopper

function u(t) {

if(!t)r=Array(1920).fill(0),r[940]=1
o=r.slice()
for(i=1918;i;){if(o[i]>0)x.fillRect(i,t*60,1,1)
r[i]='01101001'["0b"+o[i+1]+o[i]+o[--i]-0]}

Dec 28 2017 1:34 AM UTC

}// 140/140

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u/rep_movsd

#fractal

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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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ben

remix of d/4055 by u/ben

function u(t) {

c.width=500
g=t
for(j=1;o=j+t,j++<4;)for(x.moveTo(v=99*j,w=99*o%300),i=1;x.lineTo(v+=9*C(g),w+=9*S(o)*S(g)),i++<25;)i%4?g-=1:g+=2
x.stroke()

Dec 27 2017 9:22 PM UTC

}// 140/140

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u/joeytwiddle

Flipping cool! (Snow joke)
u/mohd-akram

Haha
u/iverjo

#snow

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Moosething

function u(t) {

v=c.width|=m=x=>x>0?x*z:0;z=240;for(i=0;i<7;i++) x.arc(p=i==0?z-m(V=S(t*5)):i==6?v-z+m(-V):z+i*z,3*z,z/2,0,7),x.rect(p,0,7,3*z);x.fill()

Dec 27 2017 8:19 PM UTC

}// 136/140

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u/sigveseb

Newtons cradle :D
u/katkip

x.arc(p=i==0?z-m(V=C(t*2.812)):i==6?v-z+m(-V):z+i*z,3*z,z/2,0,7) for real life speed

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socrates

function u(t) {

x.fillRect(960+t*10*S(t), 540+t*10*C(t), 5, 5)

Dec 27 2017 3:12 PM UTC

}// 46/140

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ben

function u(t) {

c.width=500
g=t
q=120
s=250
for(v=w=i=0;i<25;i++){if(i%4)g-=1.05;else g+=2.1
v+=9*C(g)
w+=(1+S(t))*9*S(g)
x.lineTo(v+s,w+q)}x.stroke()

Dec 27 2017 3:07 PM UTC

}// 134/140

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dwitter.net | ben (2803)