Dweets awesomed by u/Annastasia

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: #ScaryMovies

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rafroller

remix of d/18780 by u/rafroller

function u(t) {

u=t;
c.style.filter='invert()';for(i=0;i<10;){for(j=0;j<6;)x.fillRect(60*C(u*j)+211*i-99,60*S(u*i*1.01)+212*j-99,2,2),j++;i++}

May 14 2020 7:30 PM UTC

}// 126/140

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I really like this variation

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smtsjhr

function u(t) {

a=0.56
c.width|=0
x.translate(960+400*S(3*C(t/10)+t),540+200*S(10*C(t/10)+2*t)) 
for(i=2000;i--;){x.rotate(t/1e5+a),x.fillRect(0,0,1,2200)}

May 13 2020 7:02 AM UTC

}// 139/140

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Moireball

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DataMeta

remix of d/18426 by u/DataMeta

function u(t) {

t?r=(S(t/2)*r+4)%255:r=0
with(x)setTransform(1,0,0,1,860,768),rotate(2.7),fillStyle=R(r,r,r),beginPath(fill()),arc(-r*S(t*18),0,r*5,0,4)

May 12 2020 4:48 PM UTC

}// 136/140

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#cavern

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alqurafi

function u(t) {

c.style.filter = "invert("
x.moveTo(960+C(t*11)*100,540+S(t*11)*100)
x.lineTo(960+C(t)*400, 540+S(t)*400)
x.stroke()

May 9 2020 4:39 PM UTC

}// 118/140

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Star!

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Natsumi

function u(t) {

d=c.width=1920;for(i=0;i<d;i++){x.beginPath();x.arc(960, 540, 2000*Math.abs(T(i)*C(t/2)),0,7);x.stroke();}

Apr 29 2020 5:07 PM UTC

}// 106/140

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away she goes, starburst!

u/Natsumi

It's cool to see how just plain circles can make such interesting patterns.

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Natsumi

function u(t) {

c.width=1920;
for(i=0;i<999;i++){
x.beginPath();
x.arc(960, 540, 800*Math.abs(S(i)*C(t/2)), 0, 2 * Math.PI);
x.stroke();
}

Apr 29 2020 3:56 AM UTC

}// 122/140

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??????????? Messing around with circles

u/Natsumi

I'm a newbie to dweets, but this is pretty nice. If you want to make it go slower, change t/2 to something like t/5

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pavel

function u(t) {

for(c.width|=f=(k,n=9)=>n&&C(n**.9*k)/n+f(k,n-1),x.translate(h=960,i=0);i++<h;x.fillRect(r=h/z,r,-2*r,9/z/z))z=i/42,x.rotate(f(z+3*t)/180)

Apr 24 2020 2:49 AM UTC

}// 138/140

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https://twitter.com/ntsutae/status/121468374…

u/Xen

sexy lines
u/pavel

It seems like Safari plays dweets significantly slower until you tap on them... Giving the iframe focus increases the request animation frame rate.
u/katkip

very sexy

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rodrigo.siqueira

remix of d/18458 by u/rodrigo.siqueira

function u(t) {

for(X=f=c=>S(S(9*c/d)*t),Y=t/8-1.1,i=2e3;i--;x.fillRect(i,t*60,(1+f(X=i/480-2)*f(Y))*(d/2+Y),3))x.fillStyle=R(C(r=X*X+Y*Y)*125),d=r>1||T(r)

Apr 23 2020 5:58 PM UTC

}// 139/140

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Red Sphere Reflection #raytracing (high resoluton)

Show more comments…
u/Xen

Tf Dude! top dweet right here 😍
u/lionleaf

That's amazing!
u/lionleaf

#glass #sphere
u/stiaje

#witchcraft
u/Ath0r

Impressive, great job!
u/katkip

genius script
u/PoweredByWill

wow. dwitter povray.
u/mole

I am shooketh. This is absolutely incredible.
u/katkip

#slowrender
u/cli

This is great.
u/Nascretis

Actually insane. #witchcraft

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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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sigveseb

remix of d/58 by u/sigveseb

function u(t) {

x.globalCompositeOperation='xor';x.fillStyle=R(255*S(t),255*C(t/8+1),99);x.beginPath();x.arc(960*S(t/3.3)+960,C(t)*540+540,99,0,7);x.fill()

Jan 7 2018 2:18 AM UTC

}// 139/140

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let it sit for a while to let the texture build up

u/sigveseb

#xor #texture

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