Top dweets by u/taupelink

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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taupelink

remix of d/14962 by u/katkip

function u(t) {

c.width*=1;for(j=45;j--;){for(i=3;i--;)x.fillStyle=['navy','#900'][j%2],x.beginPath(),x.arc(i*960,1540,30*j,t*2+4+j,t*2+4.5+j),x.fill();}

Aug 11 2019 12:14 AM UTC

}// 137/140

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Adding a second color to https://www.dwitter.net/d/14962 , but mostly I want to draw attention to the original. Please go to the original and click Awesome!

u/katkip

Thx

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taupelink

remix of d/15085 by u/taupelink

function u(t) {

t||(A=[e=512,e+1],r=i=n=2);i--?(z=A[i],N=z%e,D=z>>9,x.fillText(N+'/'+D,N/D*1900,D*9),n-i-1&&A.splice(i+1,0,w+z),w=z):(i=n+=n-1)

Jul 22 2019 12:55 AM UTC

}// 127/140

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Farey sequence #math #numbertheory

u/donbright

awesome
u/IV

called Farey because wings? :)

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taupelink

function u(t) {

f=j=>x.fillRect(448+(j&255)*4,(j>>8)*4,4,4)
t||(p=Array(N=4**8).fill(n=1),f(0),f(1))
if(p[++n])for(i=1;(q=++i*n)<N;)p[q]=0,f(q),M=n;throw M

Jun 19 2019 2:39 AM UTC

}// 139/140

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Sieve of Eratosthenes. Throws primes less than 65536. Row Y Column X stays unfilled if 256*Y+X is prime. #math

u/Xen

clever
u/donbright

#primes #numbertheory
u/taupelink

maybe #sieve is a worthwhile hashtag too!

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taupelink

function u(t) {

f=(a,b,n)=>b?(a>=b?
(x.fillStyle=R(25*n),
x.fillRect(X,Y,b,b),X+=d?0:b,Y+=d?b:0,f(a-b,b,n+1))
:(d=!d,f(b,a,n+1))
):0
d=X=Y=0;f(1920,1080,0)

Jun 13 2019 1:58 AM UTC

}// 139/140

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GCD(1920,1080)=120, the size of the smallest reddest square. Demonstration of Euclidean algorithm by subtraction, cf. https://en.wikipedia.org/wiki/Euclidean_algo… #math

u/taupelink

#recursive #recursion
u/taupelink

(120 is the side length, not the size)
u/donbright

#numbertheory
u/donbright

this is super interesting

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taupelink

remix of d/35365 by u/taupelink

function u(t) {

eval(unescape(escape`景爨椽稽ㅥ㌻椭⴦♴㰱㈮㘻砮晩汬剥捴⠹㘰⭩⼲⩃⡴⼲⤬㔴〫椯㈪匨琯㈩ⱺ⬽㐭㈪匨稫㵴⤬稩⥸⹦楬汓瑹汥㵠桳氨⑻ㄹ㔫㜪⨨稦㴳⥽Ⱔ笳〫ㄵ⩺紥Ⱔ笹〭㜪⡺⬽㤪匨椯㐰⼫⭺⨪㌩⩃⡺⼲⵴⭩⼲㐰⤩紥Ⱞ㍠`.replace(/u([^D].)/g,'$1%')))

May 24 2026 1:41 AM UTC

}// 140/140

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d/35435

u/UEZ

#art #marble

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taupelink

remix of d/35368 by u/taupelink

function u(t) {

with(x)for(m=1e3;m--;fill(arc(m**5%2221,m**3%1114,m/i**t,i=i*1.57-.1,i+w%1)))beginPath(fillStyle=`hsl(${i=30+(m&19)*10},85%,60%,${w=.06/t}`)

May 17 2026 4:54 AM UTC

}// 140/140

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d/35381

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taupelink

remix of d/35371 by u/taupelink

function u(t) {

for(i=z=6e3;i--;x.fillRect(i/3,128*t,z/20,(z*=2-C(i/300))/3))x.fillStyle=`hsl(${45+(z&=12)**2},75%,${20-2*(z+=5*C(z+t/2)-C(t+z-i/360))}%,.3`

May 16 2026 4:54 PM UTC

}// 140/140

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d/35378

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taupelink

remix of d/35345 by u/taupelink

function u(t) {

with(x)for(m=600;m--;fill(arc(m**5%2011,m**4%1091,i*(300-i)/60/t**t,m,m-6+t)))beginPath(fillStyle=`hsl(${i=(m%17)**2+5},75%,50%,${1/t/i}`)

May 6 2026 1:16 PM UTC

}// 138/140

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d/35347

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taupelink

remix of d/35267 by u/taupelink

function u(t) {

with(x)for(m=1e3;m--;fill(arc(m%23*90+r*C(m),(m>>6)*90-r*S(m),r/w,i=m*.4,i-6+t/5)))beginPath(w=t**(t/4),fillStyle=R(r=m**(1-t/8),r,r,t/r/w))

Apr 29 2026 2:53 AM UTC

}// 140/140

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d/35291

u/SockTaters

Blends in perfectly with the cracks in my phone screen XD
u/taupelink

I saw this one on a Mac that maybe had the brightness up. Lots of detail that I intended to be there, was missing
u/taupelink

Looks as intended on iOS and on Windows, to my knowledge

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taupelink

remix of d/34090 by u/taupelink

function u(t) {

eval(unescape(escape`砮杬潢慬䅬灨愽⸷⨪琪㌻景爨椽稽㕥㌻椭ⴻ砮晩汬剥捴⠴㜱⩴┲攳Ⱪ⼴ⰱ㈪⡺⼽㌫䌨稫椯㔰〭琯㤩⤬⸵⤩砮晩汬却祬攽⡺㴲〫⠹㘯稪琪⨮㐫椪⨮㌦㜩⬱㠪䌨稭椯ㅥ㌩⽺⤦ㄳ㽺☲㼧⌴㜶㌧㨧⌰ㅅ㈧㨧⍄㄰㘧`.replace(/u([^D].)/g,'$1%')))

Apr 19 2026 3:10 PM UTC

}// 140/140

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d/35261

u/jpthinker

Beautiful!

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