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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sfz

remix of d/672 by u/aemkei

function u(t) {

for(c.width=874,b=[d=this.b||0],i=5e3;i--;x.fillText(b[i]=d?a==3|d[i]&a==2:i%7%2,i%96*9,i/9))for(a=0,j=5;e=93*(2<j--)+j;)a+=d[i+e]+d[i-e]

Mar 1 2017 7:18 PM UTC

}// 137/140

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Life in Bits

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Froff

function u(t) {

r=Math.random;c.width=20;x.fillStyle=R(r()*255,r()*255,0,1);x.fillRect(0,0,20,10);a="#BlAzEiT";x.strokeText(a[Math.floor(5*t)%8],7,9);

Sep 13 2016 1:18 PM UTC

}// 134/140

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u/iverjo

Trippy
u/Woodmouth

Dam, that's intense.

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irregularshed

function u(t) {

for(var h=0; h<1920; h++) {
var v=(t*60)%1080;var l=((h*h+v*v)/17)%256;x.fillStyle=R(l,l,0,1);x.fillRect(h,v,1,1);}

Feb 26 2017 6:36 PM UTC

}// 115/140

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Threw this together on my phone :)

u/SpecialAgent

beautiful!
u/sigveseb

very nice in fullscreen!
u/Tekmap

#moire

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anotherkitten

function u(t) {

eval(unescape(escape`挮睩摴桼㴰㭸⹴牡湳污瑥⠹㘰ⰵ㐰⤻砮牯瑡瑥⡴⤻景爨椽㐻ⴭ椻砮牯瑡瑥⠶⸲㠯㌩ⱸ⹦楬氨湥眠偡瑨㉄⡠䴴〴‱㜰‶㘠ⴴ㌳‭㔵‭㐳㌠㈲㈠㘴‭ㄱ㌠㘴‭ㄷ〠ㄶ㑚怩⤩砮晩汬却祬攽恨獬⠤筴⨶ぽ‶〥․筩⨹紥总`.replace(/u(..)/g,"$1%")))

Oct 24 2018 5:08 PM UTC

}// 140/140

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rotating penrose

Show more comments…
u/anotherkitten

source code: https://pastebin.com/wnqGPycP
u/yonatan

cool!
u/tomxor

#Impossibleobject
u/tomxor

I challenge anyone to add rotation :P
u/BirdsTweetCodersDweet

There already is rotation?
u/anotherkitten

i think he means on a different axis that would make the object look 3d
u/tomxor

Yup an axis that is not parallel to the camera plane... i'm half joking because it's an impossible object, a trick of 3d projection, that said their may be a way to maintain the illusion while rotating on one of the fictitious planes.
u/danny@hille.dk

AWESOME!

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WasifBoomz

function u(t) {

if(t==0)a=b=0
if(b==0)a+=50
if(a>2200)b=1
if(b==1)a-=50
if(a<-300)b=0
c.width=1920
x.arc(a,540,Math.random()*300,0,9)
x.fill()

May 17 2019 2:10 PM UTC

}// 126/140

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danny@hille.dk

remix of d/20330 by u/neimad

function u(t) {

for(c.width=X=60;X--;)for(Y=34;Y--;)x.fillStyle=R(o=99*(C(t+Y/4)+S(t+X/9+C(Y/(4+C(t)+S(X/9+Y/6))))),o,o*C(C(X+t)+C(Y))),x.fillRect(X,Y,1,1)

Oct 21 2020 5:09 PM UTC

}// 139/140

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let's play

u/danny@hille.dk

hi res version -> http://glslsandbox.com/e#68685.0

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iverjo

function u(t) {

P=t/6.3|0;X=S(t);x.fillStyle='red';x.fillText(0,320+256*(X*X*X+P*2.5),500-16*(13*C(t)-5*C(2*t)-2*C(3*t)-C(4*t)))

Jul 20 2016 6:55 PM UTC

}// 112/140

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#hearts

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Tesseract

function u(t) {

with(x){x.t=transform
f=n=>n?(fillRect(852,0,b=213,b),t(k=0.5,k,-k,k,b*2,-b),t(0,-1,f(n-1),0,b*5,b*4),t(1,f(n-1),-1,1,b,-6*b),1):1
f(13)}

Sep 12 2022 7:55 PM UTC

}// 137/140

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Pythagoras Tree

u/Tesseract

#fractal

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BriSeven

remix of d/33772 by u/marquisdegeek

function u(t) {

for(J=c.width|=I=2e3;I--;"πῸ㿼㦜㿼๰ᦘరπῸ㿼㦜㿼٠ධ「".charCodeAt(8*(3*t&1)+(P=I/(T=16))/T)&1<<P%T&&x.fillRect(J+J*S(t+V)+P%T*T,120*t-99*V+P,9,9))V=I%T

May 12 2025 8:46 AM UTC

}// 140/140

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Golfed to fit

u/marquisdegeek

Storing the gfx data like that is sweet! So nice to see if without obfuscation!
u/BriSeven

if you deduplicate the symmetry, rotate it (so that it is 8 rows of 16 pixels), and prune out the two rows that then are just zeros... we can shave the graphics data all the way down to 鰜鹞廾皶㜷彟
u/BriSeven

which would be worth it if you can find a way to undo all that which isn't more code than the characters we save

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recursive

remix of d/2065 by u/recursive

function u(t) {

w=C(t)
h=S(t)
for(c.width|=s=i=H=512;i--;x.lineTo(960+(X*w-S(i)*h)*H,H+(Y*w-Z*h)*H))X=C(o=i/-~t),Y=C(i)*S(o),Z=S(i)*w+X*h
x.stroke()

Mar 12 2017 6:50 AM UTC

}// 132/140

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u/sfz

It looks like a horned shark egg case, of all things