Top dweets 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.

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rodrigo.siqueira

remix of d/25711 by u/Ghoust

function u(t) {

t?y+=S(y*7+t)*3:(y=99)
for(i=2e3;i;i--)x.fillStyle=R(A=(B=i>y*6?0:1)*49+T(i*y+2)*B,A*1.2,y*B*1.3),x.fillRect(t*230,i,99+C(i/29)*60*C(t*4),1)

Jun 30 2022 8:43 PM UTC

}// 140/140

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Mountains after Sunset. Starry night.

u/taupelink

this is fantastic
u/vain

beautiful nightsky
u/tactical_retard

#mountains

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rodrigo.siqueira

remix of d/25569 by u/rodrigo.siqueira

function u(t) {

f=(x,y,n=X/20)=>y<X+x?f(2*x*y+.16,x*x/4.8-y*y*C(y/2)+.5,n+.8):S(n/40)
for(i=1e4;i--;x.fillRect(X=u&2047,u>>11,f(X/3e4-.6,u/8e7-.59),1))u=-~u

Jun 17 2022 4:01 PM UTC

}// 140/140

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Spiral gate: vortex to infinity #fractal #spiral

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rodrigo.siqueira

remix of d/24719 by u/rep_movsd

function u(t) {

Q=X=Y=1-(A=.03)
F=_=>A*X+2*Q*X*X/(1+X*X)**2-t/11
for((I=D=960)+t;I--;x.fillRect(D+Y*200,250-X*150,1,.5))Z=X,X=Y+F(),Y=F()-Z

Jan 13 2022 2:52 PM UTC

}// 123/140

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Strange fat man face #waitforit

u/taupelink

whoa
u/rep_movsd

Also looks like a weird non-friendly version of the elephant God Ganesha
u/DataMeta

I see a chonky NGE suit, or cthulhu ganesha
u/Xen

transdimensional anteater with wig
u/vain

Amazing! Looks like the boss of a house dust mite under the microsocope

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rodrigo.siqueira

remix of d/24700 by u/hannah777

function u(t) {

for(c.width|=i=9,d=(99+50*S(i+t));i--;x.fillRect(900+d*T(i/2)*5,400+T(t+i)*d,200,200))c.style.filter="blur(5vh)contrast(99"

Jan 7 2022 7:45 PM UTC

}// 123/140

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Liquid Interactions

u/joeytwiddle

#metaballs This is coming close to rain on a window

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rodrigo.siqueira

remix of d/23669 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`sepia(`
A=a=b=.8/t;s=400
for(i=1e4;--i;b=A,A=a)x.fillRect(900+a*s,480+b*s,1,t<5),a=.4-b+Math.abs(a/2+1/b/2e3)*(A/3-.5)

Aug 29 2021 12:23 AM UTC

}// 134/140

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Axon formation around a multinucleate alien cell

u/sigveseb

Nice!
u/Toby

Fab! Do you have a source reference for the kind of iterated formula you're using?
u/rodrigo.siqueira

You can see the original equation by changing the to "s=70" and the end to: a=1-b+Math.abs(a)
u/rodrigo.siqueira

It's based on the "Gingerbreadman Map" #gingerbreadman https://www.dwitter.net/d/14641 I don't understand the details but I know that "Even the simplest mathematical expressions, when interpreted as dynamical systems, yield fractals."
u/Toby

Ahhhh yes of course! I remember Gingerbreadman now! Thank you Rodrigo!

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rodrigo.siqueira

remix of d/23456 by u/rodrigo.siqueira

function u(t) {

for(c.width=w=512,d=new ImageData(w,w),m=w*w,i=-1;m--;d.data[i+=4]=T(Y/r-t*9|X/r)*w)r=((X=m%w-128)*X+(Y=m/w)*Y+i)/5e4
x.putImageData(d,0,0)

Aug 2 2021 9:37 PM UTC

}// 139/140

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Fly over a pixel surface

u/tomxor

oooh

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rodrigo.siqueira

remix of d/23284 by u/erin

function u(t) {

c.style.filter=`blur(2px)contrast(3)invert(`
for(i=c.width|=f=g=>i*g(i/5+t)/5+440*C(i)*g(i/5-t);i--;)x.lineTo(960+f(C),540+f(S))
x.stroke()

Jul 5 2021 2:32 AM UTC

}// 139/140

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Pulsating star and pentagon

u/jelmo

I like this

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rodrigo.siqueira

remix of d/21251 by u/rodrigo.siqueira

function u(t) {

for(i=2e3,f=g=>i*g(i*i)*g(i/t)**.3;i--;x.fillRect(960+f(C),700-f(S),9/t,9/t))x.fillStyle=`hsl(${t*i/9},99%,${S(i*i+t)*99}%,.1`

Jan 20 2021 3:26 PM UTC

}// 126/140

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Volcano sky

u/danny@hille.dk

I dig it!
u/magna

OMG
u/magna

I could hang this in my living room

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rodrigo.siqueira

remix of d/5958 by u/Jezza

function u(t) {

x.fillRect(K=4*frame,1078,4,2)
x.drawImage(c,1,-1)
x.drawImage(c,1,-1)
x.drawImage(c,-K/2,-8*frame)
x.globalCompositeOperation='xor'

Jan 14 2021 4:47 PM UTC

}// 132/140

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Sierpinski Plotter #fractal #sierpinski #generator #fullscreen

u/Qwitter

Cantor Stalagmites Too
u/erin

frame >> t*60
u/codingsilver

fractal finesse

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rodrigo.siqueira

remix of d/21095 by u/rodrigo.siqueira

function u(t) {

x.globalAlpha=.1
for(i=2e3,f=g=>i*C(i)*g(i/t/99)/t;i--;x.fillRect(960+f(S),540+f(C),9/t,9/t))x.fillStyle=`hsl(${t*i/9},99%,${C(i+t)*99/t}%`

Jan 7 2021 9:52 PM UTC

}// 139/140

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Fuzzy color double spiral #spiral

u/Xen

nice!
u/magna

Nice technique/style! Looks like sooty/mossy concrete. #texture

dwitter.net | rodrigo.siqueira (15341)