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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Current theme challenge: #Food

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kchplr

function u(t) {

x.fillStyle='#0001';for(x.fillRect(0,0,2e3,2e3),i=0;i<6.29;Y=S(i*2+t),X=(C(2*i)+C(t+i+Y)),x.clearRect(960+X*450,536+Y*500,20,9))i+=.002

Aug 5 2017 2:42 PM UTC

}// 135/140

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A glowy curve, inspired by the inverted colors of https://www.dwitter.net/d/3015 by Cantelope

u/kchplr

Noticed it is very slow in firefox, has lot of artefact on Safari and doesn't even render properly in stable Chrome. The only browser rendering it correctly is Chrome Canary. Oh, well.
u/kchplr

Here is a version which renders correctly on stable Chrome : for(x.fillStyle='rgba(0,0,0,.1)',x.fillRect(0,i=0,2e3,2e3);i<7;Y=S(i*2+t),X=(C(2*i)+C(t+i+Y)),x.clearRect(960+X*450,536+Y*500,20,9))i+=.002

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Qwitter

remix of d/18692 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𨴮𬵴𮕬𩔮𩥩𫅴𩕲🔢𨥬𭕲𚄸𬅸𚕩𫥶𩕲𭄨𘤻𭴽𨴮𭵩𩅴𪅞🔰𞵷𛴽𞄻𮄮𩥩𫅬𤵴𮕬𩔽𘤣𝕢𜄢𞵦𫵲𚅪🔹𞔻𪤭𛔻𚕦🕃𚅴𛕪𚔯𝤬𮄮𨥥𩵩𫥐𨕴𪄨𚔬𮄮𨕲𨴨𝔪𭴫𩤪𞔹𛅷𚴨𪤪𞔹𚔥𜔰𜤰𛅷𛵪𚤪𛤹𞔬𜴫𩤬𝤮𝄫𩤩𛅸𛥦𪕬𫄨𚔻𒥸𛥳𭅲𫵫𩔨𚔻`.replace(/u../g,'')))

Jan 17 2021 4:35 PM UTC

}// 134/140

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The Jellyfant

Show more comments…
u/Qwitter

increased blur recommended for fullscreen
u/danny@hille.dk

qute
u/tomxor

i'm #jelly
u/danny@hille.dk

if you use vw (percentage of viewport width) the blur radius is the same for all resolutions
u/Qwitter

driving vw from now on, thanks danny
u/aleamb

#organic
u/danny@hille.dk

here is a golfed white version c.style.filter="blur(1vw)invert(" for(w=c.width|=j=99,w/=8;j--;x.beginPath(x.fill()))f=C(t+j)/5,x.arc(5*w+f*99,w+j*99%999,w/j**.9,3+f,6.4+f)
u/Qwitter

thanks!

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nemo_tion

function u(t) {

c.width=1920
for(i=0;i<27;i++)
for(j=0;j<27;j++){
x.fillStyle=`rgb(${i*10},${j*10},${S(t)*256})`;
x.fillRect(i*71,j*40,66,35)}

Sep 10 2023 8:08 AM UTC

}// 126/140

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colours

u/cantelope

i feel all the fake AI submissions are for the purpose off amassing data to support the claim that AI is taking over... something to keep in mind
u/cantelope

*of ...whether this one is or not, just saying, there's a recent influx, and that seems to be the goal
u/cantelope

X "awesomes" earned by AI, on dwitter.net... "see?!"
u/cantelope

:P

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yonatan

function u(t) {

for(x.beginPath(i=1920);i--;x.lineTo(i,t*99+(Y|0)*99))for(Y=0,j=4;j--;)Y=Y+S((i+S(t+Y)*99*j*j)/(40*2**j))
x.stroke()

Mar 12 2018 11:01 AM UTC

}// 116/140

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https://twitter.com/jagarikin/status/9715426…

u/aleamb

fucking cool!
u/fujimotos

Great! This really opens up whole new space...
u/fujimotos

#landscape
u/fujimotos

#scanline
u/fujimotos

#slow_render

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jesterjunk

function u(t) {

eval(decodeURIComponent(escape`挮獴祬攮扡捫杲潵湤㴧⌳㈳㌳㤧㭣⹷楤瑨簽〻景爨樽㜳㬭⵪㸳〻⥰㴱㈰㝥㌯樯樬愽⸳㠴⩃⡪⩴⼲㤩ⱸ⹦潮琽⡱㵰⼳㈫⸸⤫❰砠愧ⱸ⹦楬汔數琨⟰龤꼧ⰹ㘰⭰⩓⡡⤭焯㈬瀪䌨愩ⴲ〴⭱⼳⤊`.replace(/u(..)/g,'$1%')))

Jul 14 2026 5:53 AM UTC

}// 139/140

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Pendulum wave with the Exploding Head Emoji as the Pendulum Mass

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f8f82804

remix of d/15114 by u/f8f82804

function u(t) {

eval(unescape(escape`景爨椽㠶㐻椭ⴻ⥷楴栨呛楝㵴㽔孩崺筡㨰Ɫ㨰ⱪ㨰紩砮晩汬剥捴⡩┱㘪ㄲ〫㐫ㄱ㈪⡡㵡⼲⬨⡪⬽㈪䵡瑨⹲慮摯洨⤭椯㌶⤦ㄩ⼲⤬繾⡩┱㐴⼱㘩⨱㈰⬴⬱ㄲ⨨戽戯㈫⡪☲⤯㐩ⰱⰱ⤻`.replace(/u(..)/g,"$1%")))

Jul 23 2019 9:47 PM UTC

}// 126/140

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exploring a cyclic space of #chaos game psuedo-fractals

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384.cz

function u(t) {

eval(unescape(escape`𪑦𚁓𚁴𚠲𜀩🠮𞀩𮰊𪠽𭀪𞐹𞐊𭡡𬠠𨐽𫡥𭰠𠑵𩁩𫱃𫱮𭁥𮁴𞰊𭡡𬠠𫰽𨐮𨱲𩑡𭁥𣱳𨱩𫁬𨑴𫱲𚀩𒡯𛡦𬡥𬑵𩑮𨱹𛡶𨑬𭑥🐨𪠾🠳𯁪🠾𝡼𪠾🠹𯁪🠾𜐲𚐥𜠵𝐊𫰮𨱯𫡮𩑣𭀨𨐮𩁥𬱴𪑮𨑴𪑯𫠩𒡯𛡳𭁡𬡴𚀩𒡯𛡳𭁯𬀨𛠳𚑽`.replace(/u../g,'')))

Jul 18 2022 10:34 AM UTC

}// 126/140

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#scary

u/384.cz

#sound

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KilledByAPixel

function u(t) {

A=_=>T=S(T*7)||1
B=_=>R=(R*9||.9)%1
for(i=2e3;i--;)x.fillRect(i,t*60,i-960?i<960?A():B():9,1)

Oct 18 2023 4:26 PM UTC

}// 93/140

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Two Randoms - demo of two tiny ways to generate random numbers

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u/danny@hille.dk

Cool, but both A and B uses a global method (tan or rgb), besides B is the same length as D=_=>Math.random()
u/rodrigo.siqueira

I understand that in this case, A and B are short methods used to obtain predictable (deterministic) results from a pseudo-random number generator (PRNG), unlike the Math.random() method.
u/KilledByAPixel

A uses Math.sin to get values between -1 and 1, B just uses % and returns between 0 and 1. Both have some artifacts but are random enough for many things.
u/KilledByAPixel

danny, you can't control the seed to Math.random() that makes it unusable for many applications. These do use dwitter defines but also can work just as well without, especially method B.
u/Joachim

Interesting... the left seems too uniform while the right looks slightly horizontaly biased. I think B() will be the most helpful for me, thanks!
u/danny@hille.dk

ooooh nice! Thanks for breaking that down 4 me :-)
u/rodrigo.siqueira

Warning: R=0.5; R=(R*9||.9)%1; // In this seed case (R=0.5), the result will always be 0.5 (it's fixed point, "a value that does not change under a given transformation").
u/cantelope

#RNG

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f8f82804

remix of d/15117 by u/f8f82804

function u(t) {

t||(j=a=b=.3)
for(i=99;i--;){
j+=2*Math.random()-2
a-=(a-((j&2?j:~j)&1))/2
b-=(2*b-(j&2))/4
x.fillRect(480+960*a,960*b,4,4)
}

Jul 23 2019 9:38 PM UTC

}// 125/140

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4-sided #chaos fractal -- variant III

u/f8f82804

#chaosgame

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tomxor

function u(t) {

b='0Jĉ߄߀῰㿸㾸翼翼㯸㯸ᷰ࿠΀'
c.width=320;for(i=t<2?256:1024;i--;)
b.charCodeAt(Y=i>>4&15)>>(X=i&15)&1&&
x.fillRect(X+(i>>8<<4),Y+82,1,1)

Mar 12 2019 1:39 AM UTC

}// 128/140

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Oops #atari #retro

u/tomxor

0x010 Illegal Instruction
u/tomxor

#bitmap #sprite
u/tomxor

#pixelart