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: #Opposites

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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/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/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/32950 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𨰮𬱴𮑬𩐽𨁦𪑬𭁥𬠺𬱥𬁩𨐨𛠲𚑠𒡦𫱲𚁩🐲𩐳𞱩𛐭𞱸𛡦𪑬𫁒𩑣𭀨𪐬𭀪𜠴𜀬𜐮𝀭𦠯𝠹𛐨𦀦𝀦𦐦𦠦𜰩𚰨𥀨𪐪𚠳𛱴𚐥𜰩𛰹𛀴𚐩𩡯𬠨𨐽𪐯𜑥𜰭𜠬𦀽𦐽𦠽𨠽𜐭𭀯𜠮𜠻𚰫𦠼𞐹𙡙🀳𝀭𤰨𦀯𝱞𦠯𞐩𚠨𦠾🠵𚐪𜰵𯁼𨠭𜐦𙠨𨐽𨠽𜐩𞱙𛐽𨠩𦀫👡𚠳`.replace(/u../g,'')))

Dec 19 2024 2:11 PM UTC

}// 137/140

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Industrial city, morning fog

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rodrigo.siqueira

remix of d/21809 by u/rodrigo.siqueira

function u(t) {

for(c.width|=i=300;i--;c.style.filter="blur(5vh)contrast(70)sepia(.6")x.fillStyle=R(i),x.fillRect(980,75+2**(T(i/2+t/170)/9),200*S(i-t),200)

Dec 2 2024 5:41 PM UTC

}// 140/140

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Just one more drop #blood

u/SockTaters

Huh, the drops look red on my iPhone but brown in Chrome on Windows
u/tomxor

It's going to be a CSS parsing difference for sepia(.6 in Webkit. Gecko and Blink's CSS parser allow values involving syntax with parens to be interpreted without explicitly closing e.g hsl(0 0 50 is another. AFAICT the spec doesn't explicitly say this is required, but nether does it say it's ok to not close parens.

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rodrigo.siqueira

remix of d/32575 by u/rodrigo.siqueira

function u(t) {

eval(unescape(escape`𩡯𬠨𨐽𛐮𜰻𨐼𜐻𨐫🐮𜀰𜐩𩡯𬠨𪐽𜠰𛁬👥🐮𝐻𪐭𛐻𬠽𪐥𜠿𨐪𠰨𨐪𜰩𚠹𞡓𚁴𛰲𛠷𛐮𜐩𚠳𛁥👲𚡥𚠪𠰨𪰽𜐭𩐩𛁬𛐽𜐫𝠪𣑡𭁨𛡬𫱧𚁫𚡫𚐩𮀮𩡩𫁬𤱴𮑬𩐽𤠨𫀪𭀯𞐬𫀯𜠬𫀩𛁸𛡦𪑬𫁒𩑣𭀨𜰸𝀫𨐪𜡥𜰬𭀪𜐲𜀬𜠬𞐹𞐩`.replace(/u../g,"")))

Oct 15 2024 10:05 PM UTC

}// 128/140

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Lyapunov's mask

u/magna

Incredible!
u/jpthinker

Absolutely amazing!
u/cantelope

ROFL

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rodrigo.siqueira

remix of d/32215 by u/rodrigo.siqueira

function u(t) {

x.fillRect(0,0,i=w=c.width|=0,w);x.translate(960,540);for(x.rotate(3);i--;x.clearRect(T(i*i+t/49)*z/2,T(i)*z/53,w/i,w/i))z=w*590/i

Aug 10 2024 11:02 PM UTC

}// 130/140

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Space debris #stars

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