Dweets awesomed by u/Alwin

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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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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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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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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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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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*S(C(t)+i%50)+960*(i==0?-1:1),i,s,s);}

Dec 27 2017 7:58 PM UTC

}// 140/140

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Show more comments…
u/magna

Wow!
u/Xen

impressive first 2 dweets
u/sigveseb

Very nice
u/mrremix

i really like this one... might do a remix later :]
u/CliffJonesJr

I remixed this into a tornado: https://www.dwitter.net/d/4590
u/lionleaf

#twister
u/Cloud

Milk path
u/vain

cool looking twister / tube

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Alwin

function u(t) {

z=500;c.height=z*3;
for(i=0.0;i<314;i+=1){
  f=z*S(t*3)*S(S(t)+i/2)+z*S(2*t)*C(S(t)+i);
  x.lineTo(2*z+f*C(i/4),z+f*S(i/4))};
x.stroke();

Dec 27 2017 1:17 PM UTC

}// 137/140

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lucasbsousa

remix of d/849 by u/mxfh

function u(t) {

r=480;c.width=r*4;λ=0;for(φ=a=Math.PI/1.502;φ>-a;φ-=1/r){λ+=a;x.lineTo(C(φ)*S(λ-t)*r+2*r,(C(t)*S(φ)-S(t)*C(φ)*C(λ-t))*r+r)}x.stroke()

Dec 27 2017 11:08 AM UTC

}// 133/140

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lurifax

remix of d/3262 by u/lurifax

function u(t) {

for(x[f='fillRect'](i=0,0,2e3,2e3);i++<(w=255);x.fillStyle=R(a=(w-i)*2,a/2.5,50,1.2-i%w/w))x[f](960-S(i+t)*i*3,540-C(i+t)*i*2,d=t/4*i%18,d)

Dec 27 2017 10:15 AM UTC

}// 139/140

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Light swirl - Warning if you stare to long in the middle your vision might be temporary impaired :)

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sadropol

function u(t) {

c.width|=0;for(i=1;i<140;i++){b=2*t+i;o=(S(b+5)*226)%256;x.fillStyle=R(o,o,o,1);x.fillRect(940+S(b)*200,6*i+(1.3*i)*399%400,8,8);}

Dec 26 2017 11:40 PM UTC

}// 130/140

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u/sigveseb

nice helix!
u/vain

very nice

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dwitter.net | Alwin (610)