Top dweets of all time

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: #Food

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rodrigo.siqueira

remix of d/19335 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`sepia(`
for(i=5e3;i--;f(960,540,260,t*i))f=(X,Y,s,r)=>s>1?f(X+s*S(r),Y+s*C(r),s/2,S(i+t)*3-r*2):x.fillRect(X*1,Y,t<3,.7)

Mar 5 2021 1:00 PM UTC

}// 136/140

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Broken disk #fracture

u/kimeiga

holy

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rodrigo.siqueira

remix of d/21453 by u/rodrigo.siqueira

function u(t) {

for(i=2e3,f=(X,Y,n=99)=>T(X-S(Y))<9?f(X*X-Y*Y,2*X*Y+.7,n-1):x.fillStyle=`hsl(${i/8},80%,${C(n)*n}%`;i--;x.fillRect(i,t*60,1,1))f(i/3e3,t/50)

Jan 26 2021 4:11 PM UTC

}// 140/140

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Shaky lines #fractal

Show more comments…
u/danny@hille.dk

Love it!! reminds me of a Salvador Dali painting
u/aaaaaz

crazy !
u/DataMeta

woww this is beautiful!
u/DataMeta

my new lock screen wallpaper :) #abstract #art
u/rodrigo.siqueira

I created an animated version here: https://www.shadertoy.com/view/wtGcWc it's super fast and hypnotic. View in full screen!
u/danny@hille.dk

I just saw your "Super Julia Fractal" on shadertoy it is very cool!

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Xen

remix of d/21250 by u/rodrigo.siqueira

function u(t) {

for(i=2e3,f=g=>(1+t)*i*g(i*i)*g(i+t/19);i--;x.fillRect(950+f(C),540+f(S),8/t,9/t))x.fillStyle=`hsl(${t*9},80%,${S(i/1e5+t)*99}%,.2`

Jan 13 2021 7:19 PM UTC

}// 131/140

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quick test

u/Qwitter

wow
u/iverjo

Very nice! #coralreef
u/joeytwiddle

An attractive Xen dweet? Must be 2021. Nice one!

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danny@hille.dk

remix of d/20618 by u/danny@hille.dk

function u(t) {

for(c.width=433,p=1;p++<6;)for(i=400;i--;)x.fillStyle=`hsla(${p*t*5},99%,50%,.4`,x.fillRect(i,m=C(i/(9*p+96)+t)*p*S(+p+S(i/66))*9+57,1,m)

Nov 16 2020 9:55 PM UTC

}// 137/140

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u/ciaccodavide

Smooth!

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rodrigo.siqueira

remix of d/18551 by u/rodrigo.siqueira

function u(t) {

for(i=2e3,f=(X,Y,n=62)=>X**3/Y<n?f(X*X-Y*Y-.8,2*X*Y+.2,n-1):x.fillStyle=`hsl(${n*6},99%,${X+n}%`;i--;x.fillRect(i,t*60,1,9))f(i/490-2,1-t/9)

Oct 9 2020 11:43 PM UTC

}// 140/140

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Pickover Stalks Orbit Traps #julia #fractal for X**3/Y<n #pickover

u/Xen

Wallpaper Worthy!
u/DataMeta

stunning!

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KilledByAPixel

remix of d/20062 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𡠽𚁘𛁙𛁚𛁁𚐽🡔𚁸𛡦𪑬𫁒𩑣𭀨𦀬𦐬𮠽𚁌👚🀮𜠩🰱𞐺𦠬𮠬𮀮𩡩𫁬𤱴𮑬𩐽𤠨𣀿𬐺𦠬𣀪𬐪𥀨𥀽𣑡𭁨𛡲𨑮𩁯𫐩𚐩𛁚🠱𙠦𡠨𦀫𤰨𠐩𚡚𛰲𛁙𛑃𚁁𚐪𦠯𜠬𦠪𛠹𝰬𠐪𛠹𝠫𥀨𚐪𛠴𛐮𜠩𚐾𛠷𙠦𡠨𦀬𦐬𦠯𜠬𥀨𚐪𝀭𜠩𒡱🐲𝐶𒡆𚁱𚱴𚠴𩐴𛀱𜀲𜀬𝠰𛀰𚐻`.replace(/u../g,'')))

Sep 22 2020 4:38 PM UTC

}// 140/140

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Fall Colors 🍂

u/KilledByAPixel

#tree #nature
u/DataMeta

very pretty #organic

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tomxor

remix of d/19750 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𭰽𨰮𭱩𩁴𪀦👩🐸𜰲𜀻𪐭𛐻𭑛𪑝👲𙐨𛠶𚱓𚁴𚡙𛰸𧡘𛰴𚐯𞐩𚠨𬀫𭑛𪐭𭱝𚱵𦱩𛑷𚰱𧐩𙡷𛐱𯀨𠰨𦀯𝐰𛑴𚠲𚐪𠰨𦐯𝐰𛑴𚐩𚠪𭰪𭰩𬀽𭑛𪑝𛁸𛡦𪑬𫁓𭁹𫁥👒𚁰🁷𙠦𬀪𞀬𬀼𭰦𙡰𚠲𚐬𮀮𩡩𫁬𤡥𨱴𚁘👩𙑷𛁙🐶𞀭𪐯𭰬𜐬𬀪𚠮𝀯𞀭𜐩𛁲👩𚡴𧡩𙡙`.replace(/u../g,'')))

Aug 24 2020 10:35 PM UTC

}// 140/140

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#meteor

u/tomxor

Still playing with fire...
u/tomxor

#fire

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tomxor

function u(t) {

eval(unescape(escape`𫱮𫑯𭑳𩑭𫱶𩐽𩐽🡵𦱥𛡸🠾𝁝🐴𞱦𫱲𚁩🐨𨰮𭱩𩁴𪀽𜠵𝠩𚠴𞱩𛐭𞱘👩𙐳𜠬𦐽𪐯𜐶𛁸𛡦𪑬𫁓𭁹𫁥👒𚁚𚡘𛁚𚠲𝀭𦐪𜰬𜠵𝐩𛁸𛡦𪑬𫁒𩑣𭀨𜰲𚱘𚠴𚱙𛀱𜐲𚱘𛑙𛀴𛀭𦠪𜰩𚑚🐸𚰸𚠨𭑛𪑝👵𦱩𧐪𛠷𚰨𭑛𪐭𜰳𧐫𭑛𪐭𜰲𧐫𭑛𪐭𜰱𧐭𭑛𪐫𝠴𧐩𛰸𯁼𜀩`.replace(/u../g,'')))

May 11 2020 1:03 AM UTC

}// 140/140

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Mmm yeeah, Stick ya Fingas in it !

Show more comments…
u/Xen

nice!
u/joeytwiddle

Pretty #fluid
u/katkip

So beautiful
u/sigveseb

fantastic!
u/aleamb

amazing #interactive
u/PoweredByWill

It's like that lighter-than-air insulation material!

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pavel

function u(t) {

for(let i=2e3,f=(x,n,c=8-(t+6)*n)=>~n&(x*x*n*n+(8+(t-12)*n)**2+c*c-5)**2/16+c*c>1?f(x,n+=.002):c;i--;)x.fillRect(i,t*180,f(i/135-7,.7),3)

Apr 23 2020 7:27 AM UTC

}// 137/140

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Actually #raytracing a #torus using ray marching

Show more comments…
u/Xen

Sweeet!
u/tomxor

Yes! we need more explicit surfaces on dwitter :)
u/Odog8

which expression is the DFT?
u/tomxor

I'm confused... this isn't explicit? it recurses.
u/pavel

This recurses just to advance ray length.
u/pavel

The closed form expression is x*x*n*n+(8+(t-12)*n)**2+c*c-5)**2/16+c*c-1 where c=8-(t+6)*n and n is the free variable.
u/tomxor

Ah, so is this technically ray casting? I have to ask because I still don't intuitively get all of the math.
u/tomxor

Sorry I meant ray marching
u/pavel

Yes. The math constructs a ray from (0,8,8) looking at (0,0,0), varied a bit depending on the pixel being drawn, its length is a function of n. I plug this into the equation for a torus and increment n from .7 to -1 until I find a zero of the equation.
u/pavel

Here is a version without much golfing that makes things clearer for(let i=2e3,f=(o,n,x=o*n,y=t/3*n-n,z=4-n)=>z>-1&(x*x+y*y+z*z+3)**2>16*(x*x+y*y)?f(o,n+.01):z;i--;)x.fillRect(i,t*180,f(i/540-16/9,3),3)
u/pavel

(x*x+y*y+z*z+3)**2>16*(x*x+y*y) is directly from https://en.wikipedia.org/wiki/Torus
u/pavel

with R=2 and r=1
u/pavel

This example shoots rays from (0,0,4). In order to rotate the shape you have to move where the rays come from, the camera!
u/tomxor

Thanks for the explanation 👍

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pavel

remix of d/17613 by u/DaSpider

function u(t) {

with(x)for(i=35;i--;fillStyle=R(320-r,160-r))for(j=6;j--;fill(ellipse(960,540,r=1.2**(i+t%2-2),5*r,(j+i/2+t/6)%6*Math.PI/6,0,7)))beginPath()

Feb 14 2020 3:47 AM UTC

}// 140/140

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#flower

u/katkip

nice
u/ivylab

zomg beautiful!