Dweets awesomed by u/Cloud

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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BrutPitt

function u(t) {

c.width+=X=Y=Z=d=.19
for(i=9e3;i--;)X+=d*(-d*X+S(Y)),Y+=d*(-d*Y+S(Z)),Z+=d*(-d*Z+S(X)),
x.lineTo(960+99*(X*C(t)-Y*S(t)),560-99*Z)
x.stroke()

Apr 22 2020 10:50 PM UTC

}// 140/140

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3D Thomas #Attractor

u/BrutPitt

Very shrinked code from glChAoS.P #Tomas formula: https://www.michelemorrone.eu/glchaosp/dtAtt…
u/tomxor

woah
u/BrutPitt

Thanks to KilledByAPixel's rotation technique in his Lorenz dweet
u/KilledByAPixel

👍

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KilledByAPixel

function u(t) {

eval(unescape(escape`𩡯𬠨𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛀲𩐳𛀲𩐳𚐬𪐽𜰻𪐭𛐻𪑼𦐼𜁼𘑱𙠦𮀮𩡩𫁬𥁥𮁴𚁱🰧𧁵𜠶𜀰𧁵𡡅𜁆𙰺𭑮𩑳𨱡𬁥𚁠𙑵𡀸𜱃𙑵𡁆𜐤𮰨𭀪𝀯𣑡𭁨𛡐𢐫𛠵𚐥𞀫𜑼𜁽𨀩𛁱🰵𜠰𞠸𝠰𛑓𚁴𚐪𝠹𞐬𬐿𝰶𝐺𝠰𜀫𦐩𚑱👩𛐱𛁸𛡦𫱮𭀽𨀤𮱱🰴𜀺𞑽𩑭𘡠𛁙👃𚁴𚐪𞐹`.replace(/u../g,'')))

Apr 22 2020 8:11 PM UTC

}// 139/140

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☀️+🌗

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veubeke

function u(t) {

T=t<1?x.translate(960,540,c.width^=0):(t-1)**2
x.font='bold 8em"'
x.fillStyle='#000'
x.rotate(T)
x.fillText('circle',-15,0,(t<1?S(t):1)*500)

Apr 22 2020 5:48 PM UTC

}// 140/140

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Literal #circlechallenge

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New_Core

function u(t) {

x.font='6cm a'
for(i=7-~~t%8;i--;)x.beginPath(),x.setTransform(C(a=i/1.1+t)*2,S(a)*2,S(a)*2,-C(a)*2,960,540),x.fillText("🍕",-40,-30)

Apr 22 2020 2:09 PM UTC

}// 132/140

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the best circles are served warm #circlechallenge

u/donbright

lol

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veubeke

function u(t) {

with(x){for(beginPath(i=2),font='8em"';i--;fillStyle='#fff')
arc(960,540,i*800+300,0,Math.PI*2,i)
fill()
fillText('🚗',960+S(t)*500,850-t*2)}

Apr 22 2020 12:11 PM UTC

}// 140/140

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Because I can. #circlechallenge

u/sigveseb

Haha nice :D
u/donbright

haha

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pavel

function u(t) {

for(f=c=>Math.tanh((r>1?3:13)*S(9*c/d)),Y=t/3-1,i=2e3;i--;x.fillRect(i,t*180,(1+f(X)*f(Y))*(d/2+Y/3.6),3))X=i/540-16/9,r=X*X+Y*Y,d=r>1||C(r)

Apr 22 2020 6:18 AM UTC

}// 140/140

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Experimenting with #raytracing. I finally figured out why the cosine trick from d/1112 works.

u/Cloud

WOW!

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iznax

function u(t) {

for(i=400;i--;)with(c[i]=t?c[i]:{X:i/7,Y:i,h:5,y:7}){X+=h,Y+=y
M=X*X+Y*Y
D=M>16e4?(X*h+Y*y)*2/M:0
h-=X*D
y-=Y*D
x.fillRect(960+X,540+Y,9,9)}

Apr 22 2020 4:00 AM UTC

}// 140/140

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Do Light Rays Bouncing In A Circle Qualify? #circlechallenge

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Cloud

function u(t) {

// Go to console
console.clear()
s=["🗑 😀🧽","🗑 😄 🧽"]
t*=2
console.log("I'm console cleaner " + s[t%2|0])

Apr 20 2020 3:40 PM UTC

}// 103/140

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cantelope

function u(t) {

for(x[g='fillStyle']='#0003',x[f='fillRect'](0,0,w=i=1920,i);i--;x[f](b%w,(b/w|0)%1080,9,9))x[g]=`hsl(${b=(i+w+t/99)**2.3} 99%50%`

Apr 20 2020 7:04 AM UTC

}// 130/140

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no Math.random

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rodrigo.siqueira

remix of d/18323 by u/pavel

function u(t) {

for(i=2e3,f=(X,Y,n=89)=>X<9?f(X*X-Y*Y-.8,2*X*Y+.2,n+2):x.fillStyle=`hsl(${n*2} 90%${n/2}%`;i--;x.fillRect(i,t*90,1,900))f(i/490-2,1-t/6)

Apr 19 2020 9:13 PM UTC

}// 136/140

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Color #Julia Set #fractal purple blue rays

u/pavel

Broken on Safari because of the missing space in the hsl
u/katkip

satisfying to watch
u/rodrigo.siqueira

Here is a version (with other colors) working on Safari: https://www.dwitter.net/d/18352

dwitter.net | Cloud (15464)