Dweets awesomed by u/ntsutae

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: #Opposites

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386dx25

remix of d/25946 by u/386dx25

function u(t) {

this.w||(w=c.width=255,v=4*w)
I=x.getImageData(0,0,w,w);d=I.data
for(i=0;i<v*w;i++)d[i]=((d[i+4]+d[i+v])/2+t%5)&w
x.putImageData(I,0,0)

Aug 12 2022 7:18 PM UTC

}// 135/140

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calculated chromium

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386dx25

function u(t) {

this.w||(w=c.width=255,v=4*w)
I=x.getImageData(0,0,w,w);d=I.data
for(i=0;i<v*w;i++)d[i]=((d[i+4]+d[i-4]+d[i+v])/3+2)&w
x.putImageData(I,0,0)

Aug 12 2022 7:12 PM UTC

}// 140/140

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foam waves

u/Odog8

Incredible!

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rodrigo.siqueira

remix of d/25873 by u/lunderwood

function u(t) {

x.fillRect(0,0,w=2e3,w)
for(i=2e4;i--;)x.clearRect(960+2*C(p=T(i*i)+t/2)/(Z=C(i+t)/500/((t/2+i)%1.4)),510+S(p+p/i)/Z+S(Z/5)*w,K=(p%9)+.5,K)

Jul 25 2022 10:57 PM UTC

}// 139/140

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Star drops #stars

u/andrea270872

Wow!
u/magna

WOW
u/aleamb

yeah!

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pavel

function u(t) {

f=(n,x,y)=>n<1&x*x+y*y<4?f(n+.01,x*x-y*y-X/1e4-1.65,2*Math.abs(x*y)+Y/1e4-.09):n
for(i=3e4;i--;x.fillRect(X=u&2047,Y=u>>11,1,f(0,0,0)))u=-~u

Jul 24 2022 4:34 PM UTC

}// 140/140

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Burning Ship

Show more comments…
u/pavel

#burningship #fractal
u/rodrigo.siqueira

Incredible!I've just seen a discussion about this Burning Ship Fractal on Hacker News: https://news.ycombinator.com/item?id=32210140
u/cantelope

looks more like a black cat caught in a spider's web to me
u/danny@hille.dk

f=(n,x,y)=>n<1&x*x+y*y<4?f(n+.01,x*x-y*y-X/1e4-1.7,2*Math.abs(x*y)+Y/1e4-.08):n for(i=3e4;i--;x.fillRect(X=u&2047,Y=u>>11,1,1,x.fillStyle=hsl(${(m=f(0,0,0))*60+200},99%,${m*200}%))u=-~u
u/rep_movsd

Amazing
u/rep_movsd

Amazing
u/rep_movsd

I have an NFT based on this where I manually hunted for interesting patt patterns at anywhere from 100x to 10 trillion X zoom. there are literally infinite variations
u/rep_movsd

Some locations in this https://imgur.com/gallery/XQR8tNw

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tomxor

remix of d/23242 by u/tomxor

function u(t) {

b='诿叿≿˯ȏϿꪯ묯Ͽ褐称Āꧠ뤐ð꧐륐Űp⁀凰蠀';eval(unescape(escape`𩡯𬠨𭰽𨰮𭱩𩁴𪀦👩🐸𜰲𜀻𪐭𛐻𮀮𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀤𮰭𪐯𭱽𘀹𞐥𙁻𨠮𨱨𨑲𠱯𩁥𠑴𚁩𚰶𜀪𭀦𝠳𚐾🡩𛰳𛠹𜰫𠰨𪐯𝐱𜠩𙠱🰶𜀺𜐰𯐥𨀩𮀮𩡩𫁬𤡥𨱴𚁩𙑷𛁩𛱷𛀸𛀸𚐻`.replace(/u../g,'')))

Jul 1 2022 4:18 AM UTC

}// 140/140

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#js1024 2022 - Theme: Mirror - https://js1024.fun

u/katkip

I LOVE THIS
u/tomxor

:)
u/magna

WOW

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rodrigo.siqueira

remix of d/25689 by u/cantelope

function u(t) {

for(x.fillRect(0,0,w=i=6e3,w);i--;)x.clearRect(960+(S(p=(r=i**.9)+t)*(s=r%6))/(Z=C(p)*s+2)*(h=540),h+(S(r)-s)*2/w/(s*(r/3%1)/h)/Z*h,l=9/Z,l)

Jun 23 2022 4:10 PM UTC

}// 140/140

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Inside the double tornado

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KilledByAPixel

remix of d/23876 by u/KilledByAPixel

function u(t) {

x.shadowBlur=99
x.beginPath(x.shadowColor='#fff')
for(h=i=g=o=2e4;i--;g+=o=r<2?r-1:o-g/h)r=Math.random(x.lineTo(i,i?g+t*1e3:h))*30
x.fill()

Jun 22 2022 4:22 PM UTC

}// 139/140

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Mountain Mist ⛰️

u/cantelope

if that's supposed to be a mountain, you mist :D
u/taupelink

whoa
u/KilledByAPixel

#landscape

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cantelope

function u(t) {

for(x.fillRect(0,0,w=i=6e3,w);i--;)x.clearRect(960+(S(p=(r=i**2.1)+t)*(s=r%1))/(Z=C(p)*s+1.4)*(h=540),h+S(t)*3/w/(s*(r/3%1)/h)/Z*h,l=9/Z,l)

Jun 21 2022 3:24 PM UTC

}// 139/140

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u/CalSch

This is the cool police, you're going away for a long time.
u/cantelope

for being uncool, or too cool? 😎
u/CalSch

Too cool 😎

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tomxor

remix of d/25593 by u/KilledByAPixel

function u(t) {

for(i=1e3;i--;b=a)a=u[j=i%461]||[960,540],x.fillRect(a[0]+=0|3*S(r=j*1.0472),a[1]+=0|3*C(r),u[a]?u[j]=[...b]:u[a]=2,3)

Jun 8 2022 3:56 PM UTC

}// 118/140

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Smoler Isometric Divisions

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u/tomxor

Seems to be easier to find good results if j=i%461 is restricted to primes.
u/pavel

-4 for(i=1e3;i--;x.fillRect(a[0]+=3*S(r=j/.955)|0,a[1]+=3*C(r)|0,u[a]?u[j]=[...b]:2,u[b=a]=3))a=u[j=i%461]||[960,540]
u/KilledByAPixel

nice!
u/pavel

Weirdly the numeric error from approximating pi/3 seems to matter a lot.
u/tomxor

Yeah, I think it's because it causes a deviation in the sequence at j=0. Although the output of 0|3*C(r) generally gives the expected low period of +1,+2,+1,-1,-2,-1 as j decrements, it ends on a 3, but only when using lower precision PI/3. full precision PI/3 pushes all of the 2s into 3s, which can be corrected by lowering the coefficient to 2.9, but this also makes j=0 output 2 which then seems to destroy the complexity.
u/pavel

I tried getting rid of the sin/cos by using hex coordinates but I was unable to make a complex picture. Usually just one of the six slices drew-in.

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Joachim

function u(t) {

x[f='fillRect'](0,0,z=c.width=332,z)
for(i=7e3;i--;x[f](150+S(120/n+t*9)*n+n*q/z,70+T(q/2)*n*7,a=n/9,a))x.fillStyle=R(n=i%z,q=i-n-3e3,n*=.2)

Jun 4 2022 3:06 PM UTC

}// 140/140

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Thoughts Of A Worm

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u/magna

So stylish!
u/aleamb

yeah!
u/cantelope

rly cool
u/cantelope

relevant https://code.dweet.net/full/2w9e (sauce https://code.dweet.net/prettycode/2w9e)
u/GreyHope

Cool link
u/danny@hille.dk

more 3d but no time 4 golfing ->x[f='fillRect'](0,0,z=c.width=332,z,m=20*S(t)) for(i=7e3;i--;x[f](150+S(99/n+t*3)*n+n*q/z+m,70+T(q/2)*n*7+m,a=n/9,a))x.fillStyle=R(n=i%z,q=i-n-3e3,n*=.2)

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