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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

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rodrigo.siqueira

remix of d/21525 by u/rodrigo.siqueira

function u(t) {

f=(X,Y,n=99)=>X<8?f(S(X)**2+S(Y+X)*Y*2-1,2*X*Y+.7,n-9):n
for(i=2e3;i--;c.style.filter=`sepia(`)x.fillRect(i,t*60,f(i/210-4.5,t/7-1.5)/40,1)

Feb 4 2021 12:27 PM UTC

}// 139/140

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patterns from chaos

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rodrigo.siqueira

remix of d/21469 by u/rodrigo.siqueira

function u(t) {

f = (X,Y,n=120)=>T(S(X+Y/5)*5)<9 ? f(X*X-Y*Y,2*X*Y+.7,n-2):n
for(var i=1920;i--;) {
 x.fillRect(i,t*120,.5-f(i/40000-.45,t/300+.205)/40,2)
}

Jan 27 2021 3:45 PM UTC

}// 140/140

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Growing thorns.... (just changed Sin amplitude from 2 to 5)

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rodrigo.siqueira

remix of d/21282 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert(`
x.fillRect(t*60,t*360,4,4)
x.fillStyle=`hsl(${-t*60},90%,50%)`
x.drawImage(c,5,0)
x.globalCompositeOperation='xor'

Jan 19 2021 11:34 PM UTC

}// 139/140

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Falling #sierpinski #fractal

u/Qwitter

for some unkown reason this color scheme reminds me of colecovision. Nice!

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rodrigo.siqueira

remix of d/21232 by u/rodrigo.siqueira

function u(t) {

for(Y=1e3;Y--;x.fillStyle=R(Y/3,Y/9-t*4,t,.2))x.fillRect(990+S(Y/199+t/3)/(Y+400)*Y*999,780-Y/2+C(t)*S(Y/66)*220,3,t<14)

Jan 12 2021 5:59 PM UTC

}// 120/140

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Unfolding colors

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rodrigo.siqueira

remix of d/13488 by u/pavel

function u(t) {

for(x.fillRect(0,0,i=450,i);z=--i**.3;x.setTransform(s=20/z,0,0,s,0,0))x.fillText('🥂',i%z*99,t++%z*64)

Dec 30 2020 1:02 PM UTC

}// 102/140

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Happy New Year! 🥂 Cheers!

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rodrigo.siqueira

remix of d/20589 by u/rodrigo.siqueira

function u(t) {

for(i=5e3,c.width|=f=g=>500*(T(i+t/9))*g(i*i+t/2);i--;x.lineWidth=2)x.strokeRect(960+f(C),540+f(S),s=.9*T(i/91),s)

Nov 14 2020 1:40 AM UTC

}// 114/140

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Rotating squares galaxy #squares

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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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rodrigo.siqueira

remix of d/20147 by u/rodrigo.siqueira

function u(t) {

with(x)for(c.width|=j=20,translate(820,r=400);j--;scale(.8,.8))rect(S(t)*710,99-r,r/2,r*2.2),translate(350,115),rotate(t);x.fill`evenodd`

Oct 1 2020 10:03 PM UTC

}// 137/140

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#default #spiral moving

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rodrigo.siqueira

remix of d/19882 by u/rodrigo.siqueira

function u(t) {

for(i=200;x.beginPath(),i--;x.fillStyle=`hsl(${i*3} 90%${C(i+t)*60}%)`,x.fill())x.arc(960+T(i+t/6)*4*(k=(1.05)**i),540+S(t/9+k)*i*4,k,0,7)

Sep 12 2020 1:50 PM UTC

}// 138/140

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Color bubbles

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rodrigo.siqueira

remix of d/19564 by u/rodrigo.siqueira

function u(t) {

x.fillRect(0,0,2e3,2e3)
for(var i=5e3;i--;x.clearRect(160*X+950,1e3-Y*99-460,4,4))
var X=(U=S(K=i+t)+3)*S(i*i)+S(t)+C(K),Y=U*C(S(X)+C(t)*4)

Aug 2 2020 4:32 PM UTC

}// 139/140

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living wavy thing

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