Dweets awesomed by u/rodrigo.siqueira

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/12398 by u/rodrigo.siqueira

function u(t) {

f=(X,Y,r,a,s,d=1)=>r>.5&&x.lineTo(X,Y)|f(X+C(a-=s/3.9)*r,Y+S(a)*r,r-r/22,a,s,-d)|f(X,Y,r/3,a+s*d,s*d)
t||f(400,200,130,1.5,.6)|x.stroke()

Nov 4 2020 4:06 PM UTC

}// 137/140

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Fractal plant swirl #fern #spiral #fractal #plant

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ciaccodavide

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁼👨🐨𪰽𜠰𜀩𚠲𒡮👴𙐹𒡦𫱲𚁩🐰𞱩🀹𞱩𚰫𚑪👩𚠱𜀰𛁮🠸🱸𛡦𪑬𫁒𩑣𭀨𪀫𪠫𝐰𚠨𞐭𫠩𛁨𛀵𜀬𪰩𞡮🡩𛐱𙠦𫠼𪐿𒡸𛡦𪑬𫁒𩑣𭀨𪀫𪠫𚁮𛑩𚰱𚐪𝐰𛁨𛀵𜀬𪰩𒠺𫠾𪐿𮀮𩡩𫁬𤡥𨱴𚀴𝐰𚱪𛁨𛀵𜀬𪰩𒠺𮀮𩡩𫁬𤡥𨱴𚁨𚱪𛁨𛀵𜀬𪰩`.replace(/u../g,'')))

Nov 4 2020 1:59 PM UTC

}// 136/140

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Default Inertia

u/katkip

#default #physics

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rodrigo.siqueira

remix of d/17179 by u/rodrigo.siqueira

function u(t) {

X=Y=Z=d=.02
for(i=9e3;i--;c.style='filter:invert(1')X-=d*(Y+Z),Y+=d*(X+.2*Y),Z+=d*(.2+Z*(X-5)),x.lineTo(900+72*X,800-Z*48+Y*30)
x.stroke()

Nov 4 2020 2:26 AM UTC

}// 138/140

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The Rössler Attractor (printed version). Here is a plot print of this image: https://www.instagram.com/p/CHJQov_Fly_/ The vectorial svg file to print was generated using Turtletoy here: https://turtletoy.net/turtle/c82f5e2af3 #plotter

u/rodrigo.siqueira

Comment by "themarinus" (he printed the image using a pen plotter): "The Rössler Attractor. This beautiful design is made by Rodrigo Siquera over at turtletoy. Loved it so much that I turned his line art into a plot! 160 grams A4 black cardstock White acrylic ink, with a 0.5mm line width."
u/Xen

love it
u/andrea270872

i did recognize it! Terrific

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pavel

function u(t) {

for(c.width|=i=266;i--;x.beginPath(x.fill()))for(r=74-T(S(i*i+t/4)*.6+t/2)**8,j=6;j--;)x.arc((i>>4)*2-i%2<<6,i%16*111,r>0&&r,a=j*1.047+11,a)

Nov 3 2020 8:04 PM UTC

}// 140/140

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Hexagons are the Bestagons

Show more comments…
u/pavel

Inspired by https://www.youtube.com/watch?v=thOifuHs6eY and https://twitter.com/Hau_kun/status/124501623…
u/danny@hille.dk

Amazing
u/pavel

This would look better with the colors inverted but I couldn't fit it.
u/tomxor

Neat!
u/joeytwiddle

Hexcellent
u/anotherkitten

so crisppp
u/Xen

so clean
u/DataMeta

hextra smooth
u/katkip

hexy
u/RamiSlicer

HEXAGONS ARE THE BESTAGONS!!!!!
u/erin

they are

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rodrigo.siqueira

remix of d/13702 by u/rodrigo.siqueira

function u(t) {

for(c.width|=w=960,i=4e3;i--;x.lineTo(w+w*X/Z,w*Y/Z+540))
X=(S(V=i/3.1416001))*S(U=V*6e3+t/9)*4,Y=(C(V/U))*S(V*2)*2,Z=C(U)-5-Y/t
x.stroke()

Nov 3 2020 5:09 PM UTC

}// 139/140

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Vector formation object #torus The vectorial version is here https://turtletoy.net/turtle/e35cdc88c1 (to be printed using plotter)

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rodrigo.siqueira

remix of d/20439 by u/rodrigo.siqueira

function u(t) {

for(i=2e3,f=(X,Y,n=135)=>X**3/Y<42?f(X*X-Y*Y-.8,2*X*Y+.2,n-3):x.fillStyle=`hsl(${6*n},90%,${n}%`;i--;x.fillRect(i,t*60,1,i))f(i/5e3-.7,t/85)

Nov 1 2020 6:18 PM UTC

}// 140/140

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"The Thread. The world is an infinite tapestry. There is a thread that runs between any two people, no matter when they lived or where. Find a thread and follow it." (The Teller of Tales) #fractal #pickover #spiral

u/magna

WOW

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rodrigo.siqueira

remix of d/20238 by u/rodrigo.siqueira

function u(t) {

for(i=2e3,f=(X,Y,n=235)=>X**3/Y<n?f(X*X-Y*Y-.8,2*X*Y+.2,n-3):x.fillStyle=`hsl(${n*4},90%,${n/2}%`;i--;x.fillRect(i,t*60,1,999))f(i/3e3,t/50)

Oct 30 2020 4:35 PM UTC

}// 140/140

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

u/danny@hille.dk

Wow that is beautiful
u/katkip

satisfying color pallete
u/danny@hille.dk

who knew that kale was digitally represented in the julia set? for(i=2e3,f=(X,Y,n=135)=>X**3/Y<n?f(X*X-Y*Y-.9,2*X*Y+.2,n-3):x.fillStyle=hsl(${60+n},90%,50%;i--;x.fillRect(i,t*60,1,999))f(i/3e3,t/50)

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Tesseract

function u(t) {

n=c.width=133
d=(a,b)=>[a+(o=a-7-C(t))*(k=.1/(o*o+b*b)),b-b*k]
for(l=1e4;l--;)x.fillRect(j=l%n,i=l/n,1,(C[l]=t?d(...C[l]):[i/5,j/5])[1])

Oct 30 2020 12:38 PM UTC

}// 136/140

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Schramm–Loewner evolution

u/Tesseract

If anyone knows how to get something that looks like brownian motion as a function of t in around 10 bytes, I'd like to know (it should replace C(t)).
u/rodrigo.siqueira

maybe C(t*i**8) is more random
u/rodrigo.siqueira

I see a very beautiful orange SLE (Schramm-Loewner Evolutions) here: http://www.statslab.cam.ac.uk/~jpmiller/teac… I wish this could be reproduced in javascript.
u/rodrigo.siqueira

I asked jpmiller about how he did that incredible beautiful orange SLE and got his answer, if you want to reproduce it The way that the image was made is using the following steps: "1) Sample an instance of the Gaussian free field (GFF) — see Page 24 of this paper for Mathematica code which produces it https://arxiv.org/pdf/math/0312099.pdf 2) The GFF is a function h defined on the grid {1,...,n}^2. If you consider its exponential exp(i c h), where i = sqrt(-1), c > 0 is a constant, then you get a vector field. 3) Then you can consider flow lines of this vector field by solving the equation eta’(t) = exp(i c h(eta (t)). The image essentially shows flow lines with angles +/- pi/2 starting from every point in the square where c = 1 / (2/Sqrt(128) + Sqrt(128)/2) — this is the value of c so that what you will see will be related to SLE with kappa = 128. Best wishes, Jason"

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tomxor

remix of d/20416 by u/tomxor

function u(t) {

eval(unescape(escape`𠐽𤰨𭀩𞱂👃𚁴𚐻𩡯𬠨𨰮𭱩𩁴𪀽𦀽𜐲𞀻𦀭𛐻𚑻𩡯𬠨𦠽𜐬𤠽𥀨𦀯𞀱𛐮𞀩𞱡🐲𜀫𚁒𚡂𛑁𚐪𦠬𨠽𜐳𜠫𚁒𚡁𚱂𚐪𦠬𚁡𧡢𚐥𝰾𜐻𚑚𚰽𛠱𞱦𫱲𚁙🐭𝀸𞱙𚰫🀴𞀻𮀮𩡩𫁬𤡥𨱴𚁘𛀳𝠭𦐯𦠬𮠥𝰼𝠿𦠯𞀺𮠫𭀪𝠦𨐦𙠭𜐬𜐩𚑺🐨𨐫𨠩𚠸🀼𨐥𜠬𮠽𮠭𦑞𦐫𮡽`.replace(/u../g,'')))

Oct 30 2020 12:00 AM UTC

}// 140/140

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Doom? #raycasting

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u/tomxor

UAC something something Zombies... something something Mars
u/tomxor

Z+=.03 for smoother sampling if your CPU can take it.
u/yonatan

nice one!
u/DataMeta

super cool
u/Xen

love it!
u/sigveseb

waaa with texturing! awesome!
u/tomxor

Thanks :) I just realised I missclassified these. Although it is 2.5D with 3D texturing as Wolfenstien/Doom pioneered, the 2D distance is found using #raymarching rather than casting, which is necessary for size and implicit surfaces.
u/DataMeta

#d2.5
u/DataMeta

heheh tag gaffe
u/bandaloo

oh my god dude
u/vain

Uffff... O.o

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ciaccodavide

remix of d/20426 by u/ciaccodavide

function u(t) {

for(c.width|=p=15,w=200;p--;)0x24f7fbef924fef3fce7c9edf3cfcf9e4927b6fn&1n<<BigInt(~~t%10*15+p)&&x.fillRect(p%3*w,~~p/3*w,w,w)

Oct 29 2020 7:30 PM UTC

}// 125/140

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Down to 125

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u/pavel

121 for(c.width|=p=15;p--;)0x24f7fbef924fef3fce7c9edf3cfcf9e4927b6fn&1n<<BigInt(~~t%10*15+p)&&x.fillRect(p%3*T,p/3*T,T,T=200)
u/tomxor

Also 121 but with neater output for(c.width|=p=15;p--;)0x24f7fbef924fef3fce7c9edf3cfcf9e4927b6fn&1n<<BigInt(~~t%10*15+p)&&x.fillRect(p%3<<6,p/3<<6,64,64)
u/ciaccodavide

Nice!
u/ciaccodavide

pushed to 118 for(c.width|=p=15;p--;)0x24f7fbef924fef3fce7c9edf3cfcf9e4927b6fn&1n<<BigInt(~~t%9*15+p)&&x.fillRect(p%3<<6,p/3<<6,9,9)
u/ciaccodavide

:P
u/ciaccodavide

still readable but not synced with seconds

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