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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

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Bliss910

function u(t) {

u.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

Jul 1 2020 8:44 AM UTC

}// 112/140

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danny@hille.dk

function u(t) {

t||(æ=ø=50,c.onmousemove=e=>{æ=e.x/6,ø=e.y/4},c.width=220,x.font='70px a')
x.fillText(`👨‍💻`,æ+S(t)*9,ø+50)
x.drawImage(c,-25,-25,280,1400)

Nov 29 2020 2:29 PM UTC

}// 139/140

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Me trying to come up with a good dwitter idea...

u/Xen

looking good
u/danny@hille.dk

#interactive #mouse

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larzuk

function u(t) {

c.width=g=80;u=40;for(i=0;++i<3680;){j=i%g,h=i/g|0;x.fillStyle=R(m=Math.sqrt((j-u)**2+(h-g)**2)*S(h+t)<u?h*9:h*4,m/2);x.fillRect(j,h,1,1);}

Oct 10 2019 6:26 PM UTC

}// 140/140

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SunSet

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Xen

function u(t) {

x.globalAlpha=.04,x.font="700px'",x.fillText("🐌",Z=500+C(t*8)*88,740+S(t*9)*99)

Nov 6 2017 10:08 PM UTC

}// 79/140

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danny@hille.dk

remix of d/25208 by u/ntsutae

function u(t) {

eval(unescape(escape`󭍼󯌨󫼽󫭥󭼠󢝭󨝧󩝄󨝴󨜨󭼽󨼮󭽩󩍴󪌽󜜹󜌬󭼩󛍦󟝮󟜾󤼨󫬩󚬪󜬪󭼩󞽦󫽲󚍩󟝷󚭷󞽩󛜭󞽯󛭤󨝴󨜮󬽥󭌨󦽢󟝦󚍡󚽴󚜬󨬭󤼨󨬯󝬴󚜪󭼬󨬪󜜮󜼬󜬵󝭝󛍩󚬴󚜩󩭯󬬨󪬽󨜽󝌻󪬭󛜻󚝡󚼽󤼨󝬪󣝡󭍨󛭡󭍡󫬲󚍩󙝷󛝪󚬶󜌭󜌬󪜯󭼭󝜵󚜩󞽸󛭰󭝴󢝭󨝧󩝄󨝴󨜨󫼬󜌬󜌩`.replace(/u../g,'')))

Mar 29 2022 4:24 PM UTC

}// 138/140

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Another remix - purple satin

u/danny@hille.dk

anotehr
u/danny@hille.dk

ups
u/danny@hille.dk

Another version -> w=c.width=128;f=n=>S(n)**2*w;for(i=1e4;i--;x.fillStyle=R(0,p=f(a-t)*2,p*3,p/32),x.fillRect(T=i%w+1,C=i>>7,1,1))for(j=a=3;j--;)a+=S(2*Math.atan2(C-j*12-32,T-j*9-f(j+S(t/4))))
u/vain

great. very nice demo fx

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hjroh0315

function u(t) {

c.width=1920; /* clear the canvas */
  for(i=0;i<10;i++)
  x.fillRect(960+S(t-i*10)*S(t)*200, 600+C(t-i*10)*C(t)*200, 50, 50)

Mar 16 2017 8:49 AM UTC

}// 125/140

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Daithi

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁼🐰𞱸𛡦𪑬𫁒𩑣𭀨𜀬𜀬𜡥𜰬𜡥𜰩𞱦𫱲𚁩🐱𩐴𞱩𛐭𞰩𮱬👩𚱴𞱸𛡦𪑬𫁓𭁹𫁥👠𪁳𫀨𙁻𜰰𜀭𤰨𫀩𚠱𜐰𯐬𞐰𙐬𝐰𙐩𨀻𤰨𫀩🠮𜐦𙡸𛡦𪑬𫁒𩑣𭀨𤰨𜠪𫀩𚠵𜀰𚱓𚁬𚐪𚁓𚁩𚡩𚐪𝐰𜀩𚰱𩐳𛀊𤰨𫀩𚡃𚁩𚡩𚐪𝐰𜀫𝐴𜀬𞐬𝐩𯐊𒠊𒠻`.replace(/u../g,'')))

Sep 2 2025 12:07 AM UTC

}// 135/140

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Tokamak

u/AntiqueTurtle

It's like centrifugal force creating a a vortex core this may help in theories about Einstein rosen bridges. Entering a black hole will take you out someplace at random. Great theoretical physics representation

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Pjaerr

function u(t) {

c.style.background=R();x.fillStyle=R(...[S,C,T].map(_=>127*(_(t)+1)));a=137.5*frame;r=8*frame**.5;x.fillRect(r*C(a)+960,r*S(a)+540,8,8)

Dec 30 2017 7:50 PM UTC

}// 135/140

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A little bit of Phyllotaxis. http://algorithmicbotany.org/papers/abop/abo…

Show more comments…
u/Pjaerr

btw, changing the angle a from 137.5 to 137.3 or 137.6 produce different, albeit nice, patterns.
u/Bendoman

Second best thing on here by far.
u/dubistdu

WOW
u/trupples

Also.. shouldn't it be 137.5 * pi / 180 ~~ 2.39982772149 as the trigonometric functions take in radians?
u/trupples

137.5 also kind of "isolates" the spirals after a short while while 2.4 does not
u/Pjaerr

Yeah, that'll be it actually. I still thought it looked decent!
u/DiamondDrake

I was just working on a Phyllotaxis dweet, though i was trying to use ellipse that just needs way too many characters
u/@no_identd

Although the point about radians is fully correct, I'd like to point out that the most accurate IEEE single float approximation of this angle in degrees is 137.50777 (which internally becomes 137.5077667236328125)
u/lionleaf

#spiral #flower #plant #botany
u/fujimotos

This is amazingly beautiful.

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rodrigo.siqueira

remix of d/19066 by u/rodrigo.siqueira

function u(t) {

for(j=120;j--;)for(i=214,f=(X,Y,n=0)=>X*X+Y*Y<i?f(X*X-Y*Y-T(t),2*X*Y+1,n+16):x.fillStyle=R(n);i--;f(i/25-4,j/20-3))x.fillRect(i*9,j*9,9,9)

Jun 29 2020 4:53 AM UTC

}// 138/140

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Animated #Julia Set #fractal

u/katkip

beautiful

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rodrigo.siqueira

remix of d/19226 by u/rodrigo.siqueira

function u(t) {

for(i=2e3,f=(X,Y,n=59)=>Y?f(T(X)*X-Y*Y+.2,X*Y-.9,n+.4):x.fillStyle=`hsl(${n*9} 90% ${S(n)*90}%`;i--;x.fillRect(i,t*60,1,i))f(i/1e3-1,1-t/25)

Jun 24 2020 7:13 PM UTC

}// 140/140

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Icy vortex #spiral #fractal

u/Xen

Sexy!
u/tomxor

wow noice