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: #Opposites

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rodrigo.siqueira

remix of d/28113 by u/rodrigo.siqueira

function u(t) {

for(i=1e5;i--;x.fillRect(1390+C(K=i+1/C(i*1)+1/a+T(a))*1140*a,480+S(K)*950*a,(t<5)*a,.3))a=(i*i*t)%2-2

Jul 10 2023 5:24 PM UTC

}// 102/140

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Asymmetric Spiral #spiral

u/Joachim

Great render! #organic

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rodrigo.siqueira

remix of d/25383 by u/rodrigo.siqueira

function u(t) {

f=(x,y,n=3)=>y<S(X*y*n)**2*X?f(x*x-y*S(y*2)+.3,2*x*S(y),n+1):S(n/8)**2
for(i=2e4;i--;x.fillRect(X=u&2047,u>>11,f(X/3e3-.9,u/8e6-.3),1))u=-~u

Apr 28 2022 1:42 PM UTC

}// 140/140

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#spiral with delicate details

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rodrigo.siqueira

remix of d/25259 by u/vain

function u(t) {

for(X=2e3;X--;x.fillRect(X,t*60+a,1,1)){i=a=X/2800-.08,b=t/50-.9
do{d=a*a-b*b-.61,b=2*a*b+.51,a=d,i++}while(1/a<9)x.fillStyle=R(200-i*9)}

Mar 30 2022 8:55 PM UTC

}// 137/140

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Bloody spirals #spiral #fractal

u/andrea270872

wow. this one looks like an ancient scroll from Japan or something like that!
u/pavel

That's awesome. Really like the shading.

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rodrigo.siqueira

remix of d/23388 by u/rodrigo.siqueira

function u(t) {

for(x.drawImage(c,C(t*4)*2-40,S(t*4)*2-15,i=2e3,1111);i--;x.fillStyle=`hsl(${i/2},90%,${i}%)`)x.fillRect(960+S(i+t)*i*C(i*i),540+S(i)*i,2,2)

Jul 26 2021 11:25 PM UTC

}// 140/140

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#spiral flow of lines

u/rodrigo.siqueira

This is what we see when we fly on the Neverending story's dragon (Falkor flight). Watch while you listen to Neverending Story or Bastian's Happy Flight. See remix link for the night version.

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rodrigo.siqueira

remix of d/20499 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`sepia(`
!t&&x.translate(960,540)
if(t<1.5)x.lineWidth=2/t,x.rotate(t/9),d=360*(1-S(t))
x.strokeRect(-d,-d,2*d,2*d)

Nov 8 2020 8:47 PM UTC

}// 130/140

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Framed flower #spiral

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rodrigo.siqueira

remix of d/20495 by u/Noobisuke

function u(t) {

if(!t)x.translate(1250,660)
if(t<3.14)x.lineWidth=4/(1+t*t),x.rotate(t/19),
ⵠ=320*(1-S(t/2)),x.strokeRect(-ⵠ*3,-ⵠ,2*ⵠ,2*ⵠ)

Nov 6 2020 3:39 PM UTC

}// 122/140

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𝜋 spiral box. It takes 𝜋 seconds to complete the drawing. #spiral

u/ciaccodavide

Love it!

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rodrigo.siqueira

remix of d/18749 by u/rodrigo.siqueira

function u(t) {

for(i=2e3,f=(X,Y,n=-9)=>Y<i?f(X*(X*X-Y*Y)-.5,Y*(5*X*X-Y*Y),n+3):x.fillStyle=`hsl(0,75%,${n}%`;i--;x.fillRect(i,t*60,1,9))f(i/4e3-.2,.9-t/99)

May 13 2020 5:04 PM UTC

}// 140/140

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Spiral of Spirals #spiral #fractal

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Agnes

function u(t) {

with(x)for(w=c.width=1920,i=100,translate(w/2,540);i--;r=w/i,rotate(T(t/30)),strokeRect(m=-r/2,m,r,r));

Mar 25 2018 4:46 PM UTC

}// 103/140

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(Looks way better in full screen.)

u/joeytwiddle

#tunnel #spiral #mercury #timeless #doctor_strange

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rodrigo.siqueira

remix of d/32387 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert(`
for(x.reset(i=2e4);i--;)x.fillRect(X=960+S(k=i/180-S(i*i)*.5-t/4)*i/28,Y=540+C(k+S(t*5+k*k/3e3)/9)*i/45,5,2)

Sep 9 2024 9:56 PM UTC

}// 133/140

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Rotating moving surface spiral #spiral

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rodrigo.siqueira

function u(t) {

for(i=0;i<1e4;i++)x.fillRect(960+C(i*i*t)*9+S(k=i*i-t/3)*i/t/t,540+C(k)*i/t/t,2,2),x.fillStyle=`hsl(${i/50},99%,${130/t+S(i/50)*140/t}%)`

Jul 12 2024 3:45 PM UTC

}// 137/140

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Deep spiral noise #spiral #waitforit (it takes about 30 seconds to finish)

dwitter.net | #spiral