Top #spiral dweets

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: #ScaryMovies

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rodrigo.siqueira

remix of d/25384 by u/rodrigo.siqueira

function u(t) {

f=(x,y,n=0)=>y<9*X?f(x*x-y*C(y+3.2)+.5,3*x*S(y+.001),n+1):S(n/5)**2
for(i=2e4;i--;x.fillRect(X=u&2047,u>>11,f(X/2700-.03,u/5e6-.5),1))u=-~u

Apr 30 2022 1:56 PM UTC

}// 139/140

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#spiral noise

u/rep_movsd

WOW

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rodrigo.siqueira

remix of d/24913 by u/rodrigo.siqueira

function u(t) {

with(x)for(i=999;i--;fillRect(~setTransform(s=1e4/i/t,0,0,s,960+5*s*C(F=i+t/4),540+s*S(F)*3),C(i/5)*2,G=.4/t,G))fillStyle=R(i/2,i/3,i,.1)

Feb 14 2022 12:00 PM UTC

}// 137/140

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Vortex filaments into the purple spiral #spiral

u/joeytwiddle

The arms of an alien monster reaching for the Milky Way

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rodrigo.siqueira

remix of d/17222 by u/tomxor

function u(t) {

c.style='filter:invert(1'
for(a=b=0,i=1e4;i--;x.fillRect(a*960,680-b*540,1,.2))r=0|9*S(i*i)**2/8,a+=r-a/4+b*S(a*3)/3,b+=r*t/4-a*b/2+C(a*3)/3

Jan 26 2020 7:28 PM UTC

}// 140/140

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Spiral fibers

u/tomxor

wow, feels like ice hairs at the start
u/katkip

#spiral
u/katkip

It gets more beautiful if you #waitforit

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rodrigo.siqueira

remix of d/29549 by u/rodrigo.siqueira

function u(t) {

for(a=b=t,i=1e4;i--;b+=C(a*3)/4-a*b/2,a+=r/4+b*S(a*2)/3-a/6)i&8?r=i/b&1:c.style='filter:invert()sepia(',x.fillRect(b*1e3+850,a*2e3-330,.1,1)

Feb 25 2024 7:31 PM UTC

}// 140/140

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Brush strokes spiral #spiral

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rodrigo.siqueira

remix of d/29357 by u/rodrigo.siqueira

function u(t) {

c.style='filter:invert('
for(a=b=t,i=4e4;i--;b+=C(a*3)/7-a*b/6,a+=r*.5+b*S(a*3)/5-.3*a)i&8&&(r=i/b&1),x.fillRect(a*1000+99,b*440+400,.1,t<3)

Jan 26 2024 7:51 PM UTC

}// 140/140

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Mushroom fractal object #spiral

u/jdspugh

Amazing

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rodrigo.siqueira

remix of d/28786 by u/rodrigo.siqueira

function u(t) {

for(a=b=t,i=1e4;i--;b=C(a*4)+b*.83+S(a),a+=(i/a&i%2)*4+b*S(a/2)/5-a*a/5)x.fillRect(a*3e3-500,590-b*270,.1,1),x.fillStyle=R(0,30,50)

Nov 13 2023 5:29 PM UTC

}// 131/140

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#spiral #fractal #plant

u/rodrigo.siqueira

"In the realm where art and science embrace, mathematics unveils the hidden symmetries, infusing imagination with the precision of the universe, transcending the known to inspire the creation of the yet unseen." (ChatGPT)

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rodrigo.siqueira

remix of d/25894 by u/rodrigo.siqueira

function u(t) {

for(K=X=-540;X<-K;X++)for(Y=K;Y<-K;Y++)h=S(2*Math.atan(Y/X)+Math.log(Math.sqrt(X*X+Y*Y))*9),h<S(X*Y/h)&&x.fillRect(960-X,Y-K+t,1,t<.1)

Jul 30 2022 4:57 PM UTC

}// 134/140

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Spiralnebel (Spiral Nebula), a more accurate translation from the original C64 code. #spiral Original code from 1984 by Norbert Treitz, für Phantasie und Logik.

u/andrea270872

Wow!
u/rodrigo.siqueira

"Spiele mit Computer-Grafik. Für Phantasie und Logik" (Norbert Treitz, 1984), page 63. Short video showing the book: https://twitter.com/quasimondo/status/155338…

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BriSeven

function u(t) {

x.save()
x.translate(940,550)
x.rotate(t*30)
x.font=4*t+'px a'
x.fillText(String.fromCodePoint((14000+((t*240|0)))),30*t,30*t)
x.restore()

Jun 28 2022 11:09 AM UTC

}// 138/140

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string ring

u/rodrigo.siqueira

The vortex of Chinese concrete poetry #spiral
u/CazadorDePerros

wow, lovely!

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rodrigo.siqueira

remix of d/25326 by u/rodrigo.siqueira

function u(t) {

f=(x,y,n=9)=>x<4*x**2?f(x*x-y*y-.8,2*x*S(T(y))+.2,n+t/4+1):S(n/9)
for(i=2e4;i--;x.fillRect(X=u&2047,u>>11,f(X/4e3+.28,u/8e6-.24),1))u=-~u

Apr 14 2022 6:14 PM UTC

}// 137/140

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4th version of the same spiral from previous remixes. #fractal #spiral

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rodrigo.siqueira

remix of d/17501 by u/rodrigo.siqueira

function u(t) {

for(i=1e4*(t<4);i--;x.fillRect(690+400*a,500+400*b,.2,1))
S(r=i*t)>0?(a=C(r*t)*C(r*i),b=S(r*i)):b=C(a)+(a+=S(b)*.9)/9,x.fillStyle=R(i/59)

Feb 7 2020 5:52 PM UTC

}// 137/140

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#Sphere and #Spiral

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