Dweets awesomed by u/ThirdEstate

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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magna

remix of d/24280 by u/magna

function u(t) {

c.width=f=255,k=40*(t+8)
for(i=f;i--;)for(j=f;j--;x.fillRect(i,j,1,(X*X+Y*Y)**S(t)**2-.2+S(k*X)*S(k*Y)*S(k/20/f)+(i&j)&1))X=i/f-.5,Y=j/f-.3

Nov 2 2021 6:46 PM UTC

}// 139/140

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Magic!

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u/magna

Keeps evolving #waitforit
u/cantelope

dafuq
u/magna

It all started with d/24264 courtesy of u/Jabo
u/taupelink

wow
u/Joachim

#sierpinski
u/Xen

love it!
u/donbright

beautiful
u/andrea270872

terrific stuff... I will have to study every character of your code!!
u/Jabo

Hero
u/joeytwiddle

magic ❤️

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ThirdEstate

function u(t) {

c.width=1920;for(i=0;i<1e3;i++){x.fillRect(950+C(t+i*9/6)*1e3,550+S(t+i*1.6)*700,10,80*S(t)*3);x.fillStyle=R(50+S(i)*70,0,100,1)}

Jan 7 2019 6:11 AM UTC

}// 129/140

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u/katkip

...

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ThirdEstate

function u(t) {

c.width=1920;x.fillRect(0,0,1e4,1e4);for(i=0;i<9e2;i++){x.fillStyle=R(200+90*S(i),0,90);x.fillRect(640+T(t+i)*3e2,540+S(i)*540,5.5e2,12)};

Dec 27 2017 8:39 PM UTC

}// 140/140

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ThirdEstate

function u(t) {

c.width=1920;
for(i=0;i<8e2;i++){a=S(t+i*4);b=C(t+i*3);
x.fillStyle=R(0,200+a,150+90*b);
  x.fillRect(955+C(i)*a*800,580+b*900,200*b,900*b)}

Dec 27 2017 4:27 PM UTC

}// 140/140

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u/Xen

the motion feels right, demoscene style...

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ThirdEstate

function u(t) {

c.width=1920;for(i=0;i<64;i++){x.fillStyle=R(0,200+S(i)*20,200+C(i)*10);
  x.fillRect(i*30,400+T(i/C((t)/50))*80,27,190)}

Dec 27 2017 3:55 PM UTC

}// 124/140

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ThirdEstate

function u(t) {

c.width=1920;for(i=0;i<64;i++){for(j=0;j<54;j++){x.fillStyle=R(i*i/j,S(i/j*t)*100+150,S(j*j/i*t)*100+150);x.fillRect(i*30,j*20,30,30)}}

Dec 27 2017 5:42 AM UTC

}// 135/140

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ThirdEstate

function u(t) {

c.width=1920;
  for(i=0;i<100;i++){
a=900+S(i+t)*800+T(i/t)*900
b=400+C(i+t)*400
x.fillStyle=R(b/a,a/6,b)
  x.fillRect(a, b, S(i)*b, b/5)}

Dec 27 2017 2:38 AM UTC

}// 138/140

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magna

remix of d/1480 by u/magna

function u(t) {

c.width|=0
x.font='50px monospace';
(u+'')
.slice(0,t*3+S(t)*5)
.concat(t*2&1?'|':'')
.split('\n')
.forEach((s,i)=>x.fillText(s,0,++i*50))

Apr 18 2017 1:55 AM UTC

}// 138/140

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Pair programming nightmare

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u/joeytwiddle

that title made me Lol :D
u/sigveseb

:D
u/Jenky

That's a really clever illusion, love it
u/magna

Heh, thanks! Brought it down to 123 chars in hopes of adding occasional mistakes like skipped characters / typos etc., but couldn't immediately find a way. In case anyone wants to give it a shot: https://www.dwitter.net/d/2522
u/donbright

:o
u/Polyducks

Could you make a random function to skip odd spaces?
u/magna

It has to be a deterministic PRNG so that the places that are skipped are persistent. Otherwise, it would just look like a random flipping of characters. I thought about it, but couldn't immediately find a short solution.
u/Polyducks

That's a great point. Dwitter is such a mind twister!
u/highfestiva

Groovy baby!
u/magna

#quine
u/joeytwiddle

#funny

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sigveseb

remix of d/271 by u/3bl3gamer

function u(t) {

W=c.width=255;for(i=9<<12;a=i&W,b=i>>8,n=b-45,m=a-99,i--;x.fillRect(a,b,A=1/(((t+a/n)%2)^b/n),A))n*=(B=(W*S(t*29+n/5)+m*m+n*n)/5e3)<1?C(B):1

Feb 24 2017 12:35 AM UTC

}// 140/140

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Based on some of 3b3lgamer's stuff (remix link got broken).

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u/donbright

dude you are the king,.. O M GOSH
u/Renaud___

Fantastic :S
u/lionleaf

Fixed the remix link for ya :)
u/nashcat

holy sh*t
u/Kalanchoe

H...how? This is so impressive.
u/magna

Needs more music.
u/xem

inhuman
u/donbright

still the one that blew my mind the most.
u/lionleaf

#wobble #wobbly #water #mirror #checkerboard #refraction #sphere
u/Xaotic

wtf
u/firegodjr

#raytracing #best
u/stiaje

#witchcraft
u/sigveseb

This one used to be fast, wonder why it is slow now?

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mxfh

remix of d/849 by u/mxfh

function u(t) {

r=480;c.width=r*4;λ=0;for(φ=a=Math.PI/2;φ>-a;φ-=1/r){λ+=a;x.lineTo(C(φ)*S(λ-t)*r+2*r,(C(t=t+1/r)*S(φ)+S(t)*C(φ)*C(λ-t))*r+r)}x.stroke()

Feb 22 2017 1:25 PM UTC

}// 135/140

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u/chrishaff

Old school cool!
u/ninerdelta

wow this is awesome
u/donbright

lovely
u/sfz

how in the
u/Drum

I've been clickcing 'awesome' on quite a few examples here, but this one is AWESOME!
u/Kalanchoe

Wow!
u/Brutal

Higher math :)
u/robvoodoo

If only you could fly the camera around!
u/Lazy1337

#d3

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