Dweets awesomed by u/vain

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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jylikangas

remix of d/18597 by u/pavel

function u(t) {

for(i=999;i--;x.fillRect(~x.setTransform(s=2e4/i,T(a=i+60*t),9,3*s,1500-i+9*s*C(a),540+8*s*S(a)),0,2,1))x.fillStyle=R(v=99-S(i/99)*80,v,v*2)

May 7 2020 9:44 AM UTC

}// 140/140

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Ice #cavern - all credit to pavel!

u/KilledByAPixel

🧊👍
u/katkip

wow

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pavel

remix of d/11930 by u/pavel

function u(t) {

with(x)for(i=-6*t%1;i++<66;fill())for(beginPath(fillStyle=R(8*i,4*i),j=36);--j;arc(960,h+h*S(3*t)**2/i,h/i*(9+C(~~i+6*t^j)),b=9+j/9,b))h=777

May 2 2020 4:35 AM UTC

}// 140/140

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Walking through a #cavern

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u/KilledByAPixel

🤯 genius
u/KilledByAPixel

Looped! https://twitter.com/KilledByAPixel/status/12…
u/sigveseb

Wooow sweet!
u/aleamb

yeah!
u/sigveseb

Really nice colors
u/jick

Holy cow, wow!
u/Xen

sexy!
u/katkip

aannd we have a winner!
u/KilledByAPixel

https://www.reddit.com/r/perfectloops/commen…
u/pavel

the gif is very blurry
u/KilledByAPixel

HD gif for you - https://www.dropbox.com/s/u3wbakb6e4sm00y/pa…
u/Qwitter

Wow!
u/vain

Who needs longer shaders? ;-) Real DemoScene feeling

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tomxor

remix of d/18484 by u/jylikangas

function u(t) {

for(w=i=c.width=256;--i;x.fillRect(...(i&1?[6+X,6+Y,48,36]:[(t+++S(t))*20.372%w+i%9,1+X%w,4,2,x.transform(0,1,-1,0,w,0)])))X=i%9<<6,Y=i%5<<6

Apr 25 2020 11:25 PM UTC

}// 140/140

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#City #Traffic #Simulator v2

u/tomxor

They are mostly behaved at the junctions, few maniacs' here and there...
u/KilledByAPixel

👍
u/jylikangas

Very clever to use transform here! Thanks for improving this.
u/tomxor

Thanks for starting the idea, was really fun making this one.

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pavel

function u(t) {

f=(X,y,r=80,a=0)=>r>6&&[0,.4,-.4,0].map(o=>o?f(X+r*S(a)*C(X*y/4e4+t),y-r*C(a),r*.8,a+o):x.lineTo(X,y));c.width=640;f(320,360);x.stroke()

Apr 24 2020 8:23 AM UTC

}// 136/140

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Rotating #tree #fractal

u/pavel

Inspired by https://twitter.com/ntsutae/status/125356447…
u/neimad

You should do a twitch channel. amazing.
u/ntsutae

I’m honored.
u/pavel

u/ntsutae :O I love your stuff on twitter! 素晴らしですよ
u/vain

Great 3D version !!

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tomxor

remix of d/18413 by u/pavel

function u(t) {

for(w=c.width=120,i=9e3;i--;x.fillRect(i%w,i/w,1+S(9*X/d)**5*S(9*Y/d)**5,d/2+Y/4))X=i%w/30-2,Y=i/w/30,r=X*X+(S(Y-8)-t%4+2)**2,d=r>.2||C(r*5)

Apr 24 2020 12:16 AM UTC

}// 140/140

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#rain drop on a #window

u/Whimpers

That’s insane! Nice job 👍
u/magna

Wow!
u/sigveseb

Niiiiice!

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tomxor

remix of d/18413 by u/pavel

function u(t) {

for(w=c.width=120,i=9e3;i--;x.fillRect(i%w,i/w,1+S(9*X/d)**5*S(9*Y/d)**5,d/2+Y/3))X=i%w/30-2,Y=i/w/30-1,r=X*X+Y*Y,d=r>1||1+(1-r)*S(r*9-t*4)

Apr 23 2020 1:15 AM UTC

}// 139/140

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u/aleamb

impressive! #render #witchcraft #raytracing #scene

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DaSpider

function u(t) {

A=Array(s=2e3).fill().map(Math.random)
for(i=s;i--;(a-.5)**2+(b-.27)**2>.05?0:x.fillRect(a*s,b*s,5,5))a=A[i],b=A[s-i]

Apr 21 2020 11:42 PM UTC

}// 117/140

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#circlechallenge Monte Carlo Method

u/DaSpider

Using only good old Pythagoras. This method can be used to estimate π ≈ 4*(number of points in the circle / total number of points) // t?1:d=g=0;A=Array(s=6e3).fill().map(Math.random);for(i=s;i--;(a**2+b**2)**.5<=1?d++:1)a=A[i],b=A[s-i];g+=s;throw(4*d/g)

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pavel

function u(t) {

for(c.width=i=620;i--;x.lineTo(310*(z+p*S(b))/z,300*(3+q*C(a))/z))q=i/8&1||-1,p=4-q*S(a=S(a=S(b=i/98+2*t)+b)/2+a/2),z=8+p*C(b-=t);x.stroke()

Apr 4 2020 7:12 PM UTC

}// 140/140

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#mobius strip

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u/pavel

Using sin(sin(x)+x)+sin(x)+x as a smooth staircase function to implement the flip as a pulse.
u/KilledByAPixel

👍
u/Xen

love it
u/aleamb

love it!
u/danny@hille.dk

Nice - möbius tape
u/Qwitter

Im sorry, but I find only one side of this to be Awesome.
u/vain

beautiful and smooth transformation / animation

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DaSpider

remix of d/701 by u/sigveseb

function u(t) {

eval(unescape(escape`𮀮𬡯𭁡𭁥𚁃𚁴𚐯𞐹𚐻𩡯𬠨𫁥𭀠𪐽𝁥𜰬𪠬𬰻𪠽𛐭𪐾🠴𞱸𛡦𪑬𫁒𩑣𭀨𞐶𜀫𚁪𙐸𚠲𚱩𙐲𛐸𛠵𚱃𚁴𚐩𚡳𛀵𝀰𚰨𪐥𜐶𛐸𛠵𚱓𚁴𚐩𚡳𛁳𛁳𚐩𮀮𩡩𫁬𤱴𮑬𩐽𤠨𬰽𞐹𞐯𚀨𪠾🠳𚐫𜐭𭀪𝰯𜐱𙐱𚐬𬰯𝀩`.replace(/u../g,'')))

Mar 30 2020 7:58 PM UTC

}// 120/140

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u/sigveseb

Nice!
u/Xen

love it

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pavel

remix of d/18074 by u/pavel

function u(t) {

c.width|=f=(X,Y,d,z=2+X*S(a=Y-4*t))=>d>>8?x.fillRect(960+1e3*X*C(a)/z,540+1e3*Y/z,6,6):[t,t+2,t+4].map(i=>f(X+C(i)/d,Y+S(i)/d,2*d));f(0,0,2)

Mar 28 2020 3:27 AM UTC

}// 140/140

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#sierpinski dance

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u/sigveseb

Very clean!
u/DataMeta

So smooth!
u/aleamb

wow! very smart code!
u/lionleaf

What an amazing dweet. And little did you know I had already planned #dancing as the theme for April. You were ahead of the times :D
u/joeytwiddle

Nice! Here is a dirtier, underrated relative: d/13611
u/Qwitter

looks glossy!
u/vain

Very nice and smooth 3D rotated and transformed sierpinski

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