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/21631 by u/rodrigo.siqueira

function u(t) {

c.width|=V=X=Y=Z=28
for(i=999;i--;x.lineTo(a*75,Z*V-i/t*3+1,6,6))Z+=(X*Y-Z)/V,Y+=X*(V-Z)/80,X+=Y/8-X/5,a=C(X+t)+Y*2
x.lineWidth=5
x.stroke()

Feb 10 2021 11:09 PM UTC

}// 140/140

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Flattening a #lorenz #spiral

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rodrigo.siqueira

remix of d/20838 by u/rodrigo.siqueira

function u(t) {

for(i=3e3,f=g=>i*g(i%2?i*i:i**t);i--;x.fillRect(960+f(S)*C(t),540+f(C)*C(t),K=4/(1+t),K))x.fillStyle=R(i/99,i/3,i,),c.style='filter:invert('

Nov 29 2020 4:28 PM UTC

}// 140/140

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Particle collision and decay - Hadron Collider #spiral

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rodrigo.siqueira

remix of d/18852 by u/rodrigo.siqueira

function u(t) {

for(i=2e3,f=(X,Y,n=7)=>Y?f(X*X-Y*Y+X*Y,1.2*X*Y-.8,n+.1):x.fillStyle=`hsl(0,80%,${S(n*.2)*99}%`;i--;x.fillRect(i,t*60,1,999))f(i/480-2,1-t/9)

May 21 2020 3:54 AM UTC

}// 140/140

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Red Double Spiral (if you have a large monitor, view fullscreen to see stars on the black sky) #fractal #spiral

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cantelope

remix of d/2449 by u/cantelope

function u(t) {

x.globalAlpha=.1
x.fillRect(0,0,(w=960)*2,w*2)
for(i=99;i--;p=.2*i+t,x.clearRect(w+1/(Z=3+C(p))*(i-50)*w/20,540+S(p)/Z*w,s=199/(Z*Z),s));

Apr 9 2017 2:07 AM UTC

}// 137/140

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u/donbright

wow
u/magna

I love this series.
u/magna

Golfed down by 5 characters: https://www.dwitter.net/d/2454
u/lionleaf

#perspective #spiral

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rodrigo.siqueira

remix of d/31859 by u/anilalur

function u(t) {

c.style.filter=`sepia(.6)invert(`
t?x.drawImage(c,~x.fillText(88,~x.scale(s=1-C(1/++t)/25,s),0),~x.rotate(3)):x.translate(980,540)

May 30 2024 10:27 PM UTC

}// 130/140

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Double spiral galaxy #spiral #galaxy

Show more comments…
u/metamero

lindo!!
u/aaaaaz

why tild before x ? ~x ?
u/tomxor

all of the x.method() calls return undefined, and bitwise operators coerce any non-number into 0, so ~x.foo() = ~undefined = ~0 = -1. The purpose of this - all of those method calls are defined as parameters to other methods, not for their return value, but to save 1 char. i.e x.foo(0,0);x.bar()=18 x.foo(0,~x.bar())=17, that the parameter is -1 instead of 0 doesn't matter too much in these cases.
u/cantelope

u/rodrigo.siqueira https://i.ibb.co/kGZrsF5/ezgif-3-2716f9f1aa.…
u/rodrigo.siqueira

Wow u/cantelope, how was this made?
u/lewdev

u/tomxor that's awesome. Thanks for explaining that!

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rodrigo.siqueira

remix of d/29082 by u/rodrigo.siqueira

function u(t) {

x.fillRect(x.globalAlpha=.03,0,K=8e3,K)
for(i=K;i--;x.clearRect(960+X*480,540+r*S(i*i/3e6+z-t)*450,1,1))r=i/K,X=r*C(z=i/(99+T(i/19-t)))

Dec 8 2023 1:44 AM UTC

}// 135/140

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Trapped spiral #spiral

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rodrigo.siqueira

remix of d/28757 by u/rodrigo.siqueira

function u(t) {

for(a=b=t,i=8e4;i--;a+=(r=i/b&i%2)*3.4-b*S(a*2.1)/8-a*a/4.21,b=b/1.3-C(a*3))x.fillRect(b*600+1600,2400-a*3000+b*330,.1,t<2)

Oct 30 2023 2:26 PM UTC

}// 123/140

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Fractal dome #spiral

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rodrigo.siqueira

remix of d/28249 by u/rodrigo.siqueira

function u(t) {

typeof 𓂀







for(𓂀=4e4;𓂀--;x.fillRect(960+C(K=𓂀*2+2/T(𓂀/3)+.5/a-3)*290*(a),540-S(K)*290*S(a*1),(t<3)/6,.02+a))a=S(t*𓂀)**(-.6+𓂀%19)%3

Aug 5 2023 10:39 PM UTC

}// 135/140

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𓂀 Eye of Horus #spiral

u/cantelope

Imhotep tho

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rodrigo.siqueira

remix of d/26806 by u/rodrigo.siqueira

function u(t) {

for(c.width|=i=0;i<1500;i++)for(j=0;j<9;j++)x.fillRect(i*Math.sin(i/j/1.1+t/9)+940,i*Math.cos(i/j+t/25)+540,j,j)

Jan 26 2023 1:12 AM UTC

}// 112/140

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3D moving spiral particles #spiral

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rodrigo.siqueira

remix of d/26189 by u/rodrigo.siqueira

function u(t) {

c.style='filter:invert('
for(a=b=0,i=5e4;i--;x.fillRect(a*380-9,b*230+370,1,.1))r=~6*S(i**8)**200,a-=r+a/15-b*S(a/2)/6,b+=r*b*t/9-C(a*a+b)/9

Sep 23 2022 1:00 AM UTC

}// 140/140

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Some spirals #spiral

dwitter.net | #spiral