Dweets awesomed by u/vanbujm

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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alice-mx

remix of d/10786 by u/pavel

function u(t) {

for(i=100;i--;)
for(j=50;j--;)
x.fillStyle=`hsl(${(t*50)%360},50%,50%)`,
s=20*S((i|j)-t/2)**20,
x.fillRect(10+20*i-s/2,10+20*j-s/2,s,s)

Nov 5 2018 4:54 AM UTC

}// 135/140

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mmmm patterny goodness

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alice-mx

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<999;i++){
v=~~(i/20)
x.fillRect(i%20*100+v%2*(t*99)%100,v*50,50,50) // draw 50x200 rects
}

Oct 29 2018 8:21 AM UTC

}// 133/140

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vanbujm

function u(t) {

try{g=v,a[i]=v+=v>i&a.indexOf(v-i)<0?-i:i,i++,f=y.abs((v-g)/2),x.arc(g,540,f,...1&i?[y.PI,0]:[0,y.PI]),x.stroke()}catch{a=[v=i=0],y=Math}

Oct 29 2018 3:20 AM UTC

}// 137/140

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Recaman Black

u/alice-mx

like given under duress

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rbong

function u(t) {

for(X=960;X--;x.fillStyle=`hsl(${(t+k)*25},99%,50%)`,x.fillRect(X*2,t%9*120,2,2))for(r=i=0,k=45;--k/r;i=j)j=2*r*i+1-t%9/54,r=r*r-i*i-X/4800

Oct 28 2018 8:38 PM UTC

}// 139/140

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Scanline Rainbow Mandelbrot Section

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u/rbong

I've spent quite a bit of time now trying to get a faster, more detailed mandelbrot set or other interesting fractal that hasn't been done in fewer characters. This has included exploring obscure fractals like those generated from polynomial roots, using image data as storage or other memoization, and the dweet earlier that used WebAssembly with a new compression technique. I'll keep exploring these ideas, but this experiment bore the quickest result. #fractal #mandelbrot #scanline #rainbow
u/rbong

Oh yeah, I also tried MAndelbrot perturbation. It's pretty expensive for these purposes but I might be able to do something similar.
u/Xen

Love it!
u/tomxor

I'd love to see more fractals, especially more esoteric ones, keep up the good work rbong.
u/katkip

Great job bro!! I love this one!
u/lionleaf

Amazing!
u/iverjo

#slow_render

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alice-mx

remix of d/10675 by u/alice-mx

function u(t) {

p=255
function f(a,b,d){x.fillStyle=R(C(t)*p,9,t%p)
x.fillRect(a,b,2,2);if(d>1){f(a+S(t)*t%p,b+C(t)*(d*t)%p,d*.9)
f(b+5,a+5,d*.5)}}f(p,p,9)

Oct 25 2018 8:57 AM UTC

}// 139/140

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sigveseb

remix of d/302 by u/sigveseb

function u(t) {

(F=Z=>{for(x.fillStyle=R(W=1/Z*4e3,W/2,W/4),i=Z*Z*2;n=i%Z,m=i/Z|0,i--;n%2^m%2&&x.fillRect((n-t%2-1)*W,(S(t)+m-1)*W,W,W));Z&&F(Z-6)})(36)//rm

Feb 21 2017 11:18 PM UTC

}// 140/140

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Show more comments…
u/dx4100

absolute insanity in two lines of code -- so awesome!
u/Daboo

I love it
u/lionleaf

All credit to u/sigveseb! dwitter.net/d/302
u/surasshu

fabulous!
u/alpha

Nice
u/soxface

incredible...
u/suresh

Awesome!
u/arowberry

really really cool!
u/highfestiva

This is far from your best work, why is it so liked?
u/iverjo

Because it got much exposure during a traffic peak on dwitter last year
u/iverjo

Besides, it's an awesome dweet :D
u/iverjo

https://www.youtube.com/watch?v=vFdDOcDLXt4
u/iverjo

#recursive
u/vain

Very cool checkerboard parallax fx
u/fentbiggesthater

decent

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