Random dweets | Dwitter

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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rodrigo.siqueira

remix of d/12440 by u/rodrigo.siqueira

function u(t) {

t||(a=b=0)
for(i=5e3;i--;)x.fillStyle=R(C(a)*200,S(a)*b/3,t*42),x.fillRect(960+b*S(a*.8),540-b*C(a*.8),1,1),a+=1.9*C(2.5*a)+C(t/5),b+=.00076

Jul 7 2019 9:15 PM UTC

}// 140/140

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Feigenbaum Flower. Homage to Mitchell Feigenbaum (1944-2019). He demonstrated the universal character of dynamical non-linear systems, which has made possible the systematic study of chaos. In 1975, using the small HP-65 calculator, he discovered that the ratio of successive distances between bifurcation events tends to a constant δ ≈ 4.66920... This "ratio of convergence" of period-doubling bifurcations is now known as the first Feigenbaum constant. #bifurcation #attractor #fractal #chaos #math

u/taupelink

This is a great tribute. RIP.
u/donbright

really nice
u/artfarnaa

Rodrigo - are you working full time on this fractal stuff? Super impressive if its only a hobby. Great work.
u/rodrigo.siqueira

#tribute

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katkip

remix of d/10018 by u/katkip

function u(t) {

c.width^=0;for(i=0;i<77;i++)for(j=0;j<44;j++)x.fillStyle=`hsla(${(i*j*t/999|0)%2?0:200},99%,50%)`,x.fillRect(i*25,j*25,25,25)

Sep 22 2018 4:53 PM UTC

}// 125/140

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I don't know why but I like this kind of dweets.

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KilledByAPixel

function u(t) {

eval(unescape(escape`󨼮󭽩󩍴󪍼󟝨󟜲󜌊󥌽󭌥󝌯󜬊󮬽󜼵󜌊󩭯󬬨󪼽󜜸󞽫󛜭󞽸󛭦󪝬󫍒󩝣󭌨󝌰󜌫󠼨󭌪󜜮󝜷󜌸󚜪󜼰󜌫󚍔󟌱󟽩󚽪󚭔󞭪󚬨󪜭󥌫󜬩󚜪󞜹󛌮󛬮󥌼󜜿󦽺󚼨󪬿󜬰󜌺󮜩󛌵󜌬󪬿󮜺󜬰󜌭󮝝󞭛󪬿󮬫󮜫󩬺󮬫󪌬󝜰󛍪󟼨󞌫󥌩󚭨󞬲󜌰󛝦󧜩󚝩󟝫󙜹󛍪󟝫󟬸󛍹󟝩󚭨󚽨󛍦󟝨󚬨󜬭󥌩`.replace(/u../g,'')))

Jul 20 2025 9:43 PM UTC

}// 140/140

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One More #Default

u/KilledByAPixel

I was always fascinated by those old pictures where you can reposition the top half to make an extra person appear.
u/magna

Great!
u/cantelope

holy shit

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KilledByAPixel

remix of d/14392 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛁷🐲𩐳𛁷𚐻𩡯𬠨𪠽𜀻𪠫𚰼𞐻𚑦𫱲𚁚👩🐹𞐻𪐭𛐻𢠽𪠪𞐭𦠫𬐬𦐽𪐯𝱼𜀬𮀮𩡩𫁬𤡥𨱴𚁩𙐷𚡚𚠳𛠲𚱊𛐨𦐦𜐩𚡚𛁙𚡚𚠱𛠱𚱊𚰨𚁥👴𛐷𜀫𪐩🀰𚐪𩐪𭰭𦠬𜰪𦠬𦠩𚑸𛡦𪑬𫁓𭁹𫁥👠𪁳𫀨𙁻𪐿𞐺𜐹𝑽𘀷𜀥𙁻𪠪𝠫𚁱🐹𚡓𚁩𚡩𚐩𯐥𨀻`.replace(/u../g,'')))

Jun 3 2019 9:25 PM UTC

}// 140/140

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Goodbye Blue Sky

Show more comments…
u/KilledByAPixel

"All in all it's just another brick in the wall." ~ Pink Floyd
u/SMON

I feel so inept. 😭
u/SMON

x.fillRect(0,0,w=2e3,w);for(j=0;j++<9;)for(Z=i=99;i--;J=j*9-Z+q,Y=i/7|0,x.fillRect(i%7*Z*3.2+J-(Y&1)*Z,Y*Z*1.1+J+((e=t-70+i)<0)*e*w-Z,3*Z,Z))x.fillStyle=hsl(${i?9:195} 70%${j*6+(q=9*S(i*i))}%;
u/katkip

Building be like
u/KilledByAPixel

It's less complicated then it looks! Try experimenting with the code. Add new lines and rename stuff to make it more readable. Change the e*w part to e*99 to better see how the bricks fall. Change to <0 to >0 to make them fall differently.
u/katkip

trump be like

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dlock23

function u(t) {

c.width=2e3
for(i=0,j=-5;j*i<15;i++,j++,x.fillRect(i*200,S(t)*50*j+300,100,100))
x.fillStyle=R(i*50+140*S(t),j*10+100*S(t))

Oct 19 2022 8:29 AM UTC

}// 123/140

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flowless

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MatchaMaze

function u(t) {

for(o=14;o--;)for(i=20;i--;)for(j=13;j--;x.fillStyle=R(0,0,o*30),
x.fillRect(i*100-o*9/2+S(t+i)*100,j*100+C(t+i)*100-o*9/2-100,o*9,o*9));

Aug 10 2018 9:21 PM UTC

}// 137/140

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magna

remix of d/22598 by u/magna

function u(t) {

c.width|=0
for(j=200;j--;)for(i=9;i--;x.fillRect(400+i*100+S(t-j/60)*300,400-j,50,200))x.fillStyle=j?`hsl(${j+t*999},99%,${50+j/4}%`:'#000'

Apr 23 2021 3:53 AM UTC

}// 139/140

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#default intensifies

u/tomxor

I'm a simple man, I see retro rainbow animation, I click awesome

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JeremyLikness

function u(t) {

c.width|=0;for(b=1e3;b--;){r=i=>i*50+550;d=r(C(b+t*2)+T(p=b/4));e=r(S(b+t/2)+T(p));x.fillStyle=R(p/2,p,b/4,0.2);x.fillRect(d,e,10,10);}

Jan 17 2018 12:00 AM UTC

}// 135/140

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jniemenmaa

remix of d/14732 by u/New_Core

function u(t) {

for(i=600;i--;x.fillRect(960+400*S(i)*Z,540+i*C(i)*Z,a=i/2*Z,a))Z=T(i+t),x.fillStyle=`hsla(${i+t},99%,50%,.02)`

Jun 24 2019 1:08 PM UTC

}// 112/140

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sandromiccoli

remix of d/5819 by u/sandromiccoli

function u(t) {

c.width=2e3;v='<zIH_|~+./';for(i=51;i--;)for(j=99;j--;)x.font=90+'px A',x.fillText(v[~~((t)%7)],i*39,540+C(j+i/4)*492)

Jan 10 2018 4:45 AM UTC

}// 118/140

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u/sigveseb

Cool technique