Dweets awesomed by u/MangoBox

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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MangoBox

function u(t) {

c.width=2000
for(i=1;i<12;i++) {
x.fillStyle=R(T(t)*255,0,0,1);
x.fillRect(i*100+T(t)*250,T(t*i/3)*100+500,50,50)}

May 15 2018 2:53 AM UTC

}// 114/140

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aemkei

remix of d/6101 by u/aemkei

function u(t) {

c.width|=8
x.translate(960,540)
x.rotate(t/9)
x.font="200px a"
for(i=8;i--;x.fillText(String.fromCharCode(1536+t),6,C(t)*50))
x.rotate(4/5)

Jan 16 2018 9:20 PM UTC

}// 139/140

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u/Xen

nice find!

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sadropol

remix of d/3748 by u/sadropol

function u(t) {

c.width|=0;for(i=1;i<140;i++){b=2*t+i;o=200-(S(b+5)*126)%256;x.fillStyle=R(0,o,0,1);x.fillRect(940+((i/60)%1)*S(b)*200,400+i*6%400,8,8);}

Dec 27 2017 12:01 AM UTC

}// 138/140

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Show more comments…
u/sigveseb

merry christmas!
u/joe724

Beautiful!
u/Chipnstein

just got plastuer and made a nice redish background to apply this on my desktop, awesome!
u/vrishankm13

new here, but this is already my all time favorite, so beautiful
u/lionleaf

Awesome! Merry Christmas :D Some good ones last year as well, if you manage to find them ^^
u/hollo47

#tree #christmas
u/vain

beautiful xmas tree

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cantelope

remix of d/2845 by u/cantelope

function u(t) {

A=960,B=540,x.fillRect(0,0,D=2e3,D)
for(i=D;i--;)x.clearRect(A+1/(Z=2.5+C(p=i*C(t/2)/40)*S(q=i/628))*(X=S(p)*S(q))*A,B+C(q)/Z*A,s=69/Z/Z,s)

Jul 10 2017 4:43 AM UTC

}// 140/140

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u/lionleaf

That's really neat!
u/Polyducks

This is amazing! What's the concept behind it? How are you getting the sphere?
u/cantelope

@Polyducks, it's a golfed version of the equation of a sphere [x=sin(p1)*sin(p2);z=cos(p2);z=cos(p1)*sin(p2);] combined with a tiny 3D projector, X=cx+1/z*x*cx; Y=cy+y/z*cx, where cx/cy is center screen, and x/y/z are the 3D coordinates. Hope that makes sense! :)
u/cantelope

*equation of a sphere: [x=sin(p1)*sin(p2);y=cos(p2);z=cos(p1)*sin(p2);]
u/alien

thanks for that, is projector a mathematical construct? does it have other names?
u/cantelope

@alien it's my own invention, the product of years of research into geometry. I wrote a tutorial with a (very ungolfed) version here https://cantelope.org/3D
u/alien

*__*
u/alien

All the lienar algebra and vectorial calculus in my bachelor finnally comes to life in my head... this is soooo cool @cantelope...
u/donbright

bravo... bravo

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khalkeus

function u(t) {

w=960;h=540;c.width=w*2
for(i=0;i<99;i++){for(j=0;j<99;j++){
x.fillRect(S(i-j)*C(t+j)*w+w,S(i+j)*S(t+j)*h+h,5,2)}}

Feb 24 2017 10:38 PM UTC

}// 114/140

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u/Purpzie

Shaved off 12 characters: for(c.width|=a=0;a<9801;)x.fillRect(S((i=0|a++/99)-(j=a%99))*C(b=t+j)*960+960,S(i+j)*S(b)*540+540,5,2)

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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

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