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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Current theme challenge: #Food

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rodrigo.siqueira

remix of d/19764 by u/rodrigo.siqueira

function u(t) {

f=(X,Y,n=222)=>Y*Y>n?n:f(2*X*Y-.6,Y*Y-X*X+.2,n-1);for(i=2e3;i--;x.fillRect(i,t*60,1,1))x.fillStyle=`hsl(${K=f(i/2e3,t/35)},90%,${T(K)*29}%)`

Aug 30 2020 8:12 PM UTC

}// 140/140

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Deep chaos #julia #fractal

u/taupelink

amazing
u/sigveseb

Ooh very nice!
u/magna

So pretty!

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rodrigo.siqueira

remix of d/19334 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`sepia(`
for(var i=5e3;i--;f(960,610,300,t*i))f=(X,Y,s,r)=>s>1?f(X-s*S(r),Y-s*C(r),s/2,C(t+i)-r*2):x.fillRect(X,Y,t<4,.5)

Jul 6 2020 2:00 AM UTC

}// 136/140

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Triple Convergence #symmetry

u/andrea270872

the 3d effect is great. it looks to me like an ancient broken vase! great

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rodrigo.siqueira

remix of d/18999 by u/rodrigo.siqueira

function u(t) {

for(let i=2e3,f=(X,Y,n=9)=>Y?f(X*X-Y*Y,2*X*Y+.65,n+.15):x.fillStyle=`hsl(${n},80%,${80*C(n)}%`;i--;x.fillRect(i,t*90,1,99))f(i/3e3-1,1-t/25)

Jun 7 2020 8:10 PM UTC

}// 140/140

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red zoom #julia #fractal

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rodrigo.siqueira

remix of d/18440 by u/rodrigo.siqueira

function u(t) {

for(let i=2e3,f=(X,Y,n=59)=>X*Y<n&&f(X*X-Y*Y-.8,2*X*Y+.2,n-1,x.fillStyle=R(C=(X<Y)*i/Y,C/3));i--;x.fillRect(i,t*180,1,3))f(i/490-2,1-t/3)

Apr 28 2020 5:10 PM UTC

}// 137/140

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Orange black #Julia set #fractal

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rodrigo.siqueira

remix of d/17550 by u/jylikangas

function u(t) {

for(k=99,c.width=i=-8;++i<7;R=a=>x.lineTo(k+a*k/(z=j-t*5%1),k+(k*S(j+t*5&a|9)-a**4)/z))for(j=k;x.beginPath(x.stroke()),R(i),--j;R(i+1))R(i)

Feb 10 2020 7:20 PM UTC

}// 139/140

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Simplified version of u/jylikangas' grid mountains (landscape valley) #uncompressed #d3 #wireframe

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rodrigo.siqueira

remix of d/12354 by u/rodrigo.siqueira

function u(t) {

for(a=b=i=2e4;i--;x.fillRect(960+99*a,540+99*b,.1,1))r=Math.random(),[a,b]=r>.5?[S(b)*8,C(a*b+t)*5]:[S(b/3)*5,a/3]
x.fillStyle=R(b*60*(i%3))

Feb 5 2020 12:33 PM UTC

}// 140/140

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Into the abyss of rectangles #recursive

u/DaSpider

Where is the recursion?
u/rodrigo.siqueira

Each [a,b] is defined by the previous state of [a,b], so it's actually iterative.. It's based on IFS (Iterated Function System) with transformations are based on a probability.
u/sigveseb

That shading ends up looking really nice!
u/tomxor

Yeah, really nice texture!
u/lulasz

Looks like pencil drawing 🤔

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rodrigo.siqueira

remix of d/17307 by u/rodrigo.siqueira

function u(t) {

for(A=a=b=0,i=1e4*(t<3);i--;){r=0|2*Math.random(),
a+=r-a/5+b*S(a*2)/2,
b+=.25-b/3+C(A*2)/4,A=a,
x.fillRect(a*420-280,b*620+180,.3,1)}

Jan 27 2020 2:01 PM UTC

}// 134/140

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Weeds in my garden #plant #fractal

u/joeytwiddle

Pretty! #nature #tree

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rodrigo.siqueira

remix of d/15559 by u/tomxor

function u(t) {

for(c.width=128,i=576;i-=1/16;x.fillRect(16*X,16*Y,Z,Z))
x.fillStyle=R(0,35,90),X=i%8,Y=i/128,
Z=1+C(20*T(Y+T(X*2))*C(X+T(Y*9))+t*4)**3/3

Aug 31 2019 12:58 AM UTC

}// 137/140

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Sea from above. #water

Show more comments…
u/jellyedwards

Amazing!
u/aleamb

YES!
u/aleamb

#realisti
u/aleamb

#realistic
u/tomxor

nice, sometimes the unfloored i/128 works in our favour, adds that overall gradient that makes it look like reflecting sky
u/katkip

nice
u/katkip

#tagfail
u/iverjo

Very nice water

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rodrigo.siqueira

remix of d/13450 by u/rodrigo.siqueira

function u(t) {

t||x.translate(960,540);if(t<8){
x.globalAlpha=.1
x.strokeRect(0,0,30,60)
x.rotate(Math.PI*.8)
x.drawImage(c,30,0,1000,1200)
}

Apr 25 2019 1:58 PM UTC

}// 126/140

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Star thread

u/Purpzie

Shortened by 8 characters: with(x)t||translate(960,540),t<8&&(globalAlpha=.1,strokeRect(0,0,30,60),rotate(Math.PI*.8),drawImage(c,30,0,1e3,1200))

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rodrigo.siqueira

remix of d/33918 by u/rodrigo.siqueira

function u(t) {

x.fillRect(u=v=r=t/99-6,0,2e3,2e3)
for(k=i=70;i--;)for(j=k;j--;x.clearRect(980+u*k,540+v*k,2,2))u=C(P=i+v)+5*C(Q=r*i+u/5),v=S(P)+S(Q)*C(t)*5

Jun 21 2025 8:12 PM UTC

}// 140/140

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Orbits over the torus surface #torus

u/Odog8

Amazing!
u/joeytwiddle

donut universe theory

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