Dweets awesomed by u/New_Core

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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KilledByAPixel

remix of d/14863 by u/KilledByAPixel

function u(t) {

c.width|=0;for(z=j=4e3;j--;x.arc(960,540,350+99*S(j/500+a*4)*S(2*(a-t))**5,a,a))a=j/159+t
x.rect(0,0,z,z)
x.fillStyle="#537"
x.fill`evenodd`

Jul 1 2019 6:16 PM UTC

}// 140/140

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Circle Wave Squared

u/KilledByAPixel

I figured out the circle wave looks really good with an evenodd fill. Also, you can change the 4 in j=4e3 to change number of layers, and toggle between filled or not if even/odd
u/joeytwiddle

Makes me think of a Fourier series d/4003 but in polar coords
u/katkip

This is cute
u/Toby

Beautiful!

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pavel

remix of d/14846 by u/KilledByAPixel

function u(t) {

r=_=>Math.random();(frame-1)%600?0:d=r(m=r(c.width=960))
f=g=>260*((1-m)*g(a=8*t)+d*m*g(a-a/m))
x.lineTo(480+f(C),270+f(S));x.stroke()

Jul 1 2019 7:54 AM UTC

}// 134/140

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#spirograph generator

u/pavel

I believe this generates all valid spirographs, at least the circle with a small pencil hole rolling in a circle ones.
u/pavel

The incremental drawing is not parameter aware so at the extremes its too slow / too fast and choppy
u/pavel

I was gonna improve this by using the period of a spirograph but gave up deriving it.
u/pavel

I think the period is the denominator of 1-1/m expressed as an irreducible fraction.

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New_Core

function u(t) {

for(c.width|=i=4;i--;x.fillText("ZOOM|DWITTER|BETTER|A".split('|')[0|i],960,540+Z*12))Z=5**T(i*.8+t/6),x.textAlign="center",x.font=Z+"cm'"

Jun 28 2019 9:36 AM UTC

}// 139/140

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u/Xen

nice
u/katkip

nice

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loktar

remix of d/14747 by u/loktar

function u(t) {

for(x.drawImage(c,0,-1),W=-t*6,i=2e3;i;i--)x.fillStyle=`hsl(${t*20},99%,${90*S(W+=.1)}%)`,x.fillRect(i+10*S(9*t),1080,1,-S(W))

Jun 25 2019 10:23 PM UTC

}// 126/140

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Done from scratch instead of following the patterns I had in my original was able to golf it down to an acceptable size.

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KilledByAPixel

remix of d/14763 by u/KilledByAPixel

function u(t) {

c.width|=0
with(x)for(j=50;j--;)for(beginPath(i=99);i--||stroke();)arc(j%10*192+96,50+96+(j/10|0)*192,96,q=i*.0641,(q*j+t)%(Math.PI*2))

Jun 25 2019 9:46 PM UTC

}// 135/140

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Iris Variations

Show more comments…
u/loktar

Awesome!
u/Xen

LOVE IT!
u/donbright

ok thats it. Internet is now complete. no need for anything else
u/magna

#multidweet
u/KilledByAPixel

Mathologer video about this: https://www.youtube.com/watch?v=qhbuKbxJsk8
u/KilledByAPixel

https://www.fxhash.xyz/generative/2216 #fxhash

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New_Core

function u(t) {

for(i=500;i--;x.fillRect(960+400*S(i)*Z,540+i*C(i)*Z,a=i/2*Z,a))Z=2**T(i*8+t),x.fillStyle=`hsla(${i/2+t*5},99%,50%,.02)`

Jun 24 2019 8:36 AM UTC

}// 121/140

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u/katkip

hyperspace tunnel
u/donbright

my goodness this is rather profound
u/joeytwiddle

#tunnel #clouds

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New_Core

function u(t) {

t<2?x.fillRect(t*60*6+600,400,6,~~(Math.random()*2)*200):0
//got my barcode app to read some numbers once =)

Jun 20 2019 9:41 AM UTC

}// 108/140

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u/13thptr

#barcode

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New_Core

function u(t) {

for(c.width|=i=0;i<700;i++)i<360?v=99:v=50*S(t*2+i/9),b=v*S(i/9+t)+200+v,x.fillRect(960+b*S(a=i/(~~(t/4%6+1)*9)),540+b*C(a),q=20,q)

Jun 17 2019 9:19 AM UTC

}// 131/140

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New_Core

function u(t) {

for(c.width|=q=i=300;i--;x.fillRect(i,0,9,30))x.fillStyle=`hsl(${v=i+t},99%,50%)`,x.setTransform(a=C(v),b=S(v),a,-b,q*i%2e3,-q+v/6*q*5%2e3)

May 23 2019 2:43 PM UTC

}// 139/140

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konfetti =)

u/Xen

nicely done
u/katkip

#particles
u/username

confetti?

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pavel

function u(t) {

for(c.width|=t%=i=6;i--;x.lineTo(960+1e3*X*C(A)/z,3e3*(1+t/6-S(a))/z))X=3*C(a=i%2*3.142/(1+1e4**(i-t)))-1,z=6+t+X*S(A=(i+t/4)/.477);x.fill()

May 21 2019 9:58 AM UTC

}// 140/140

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Let's see what unfolds

Show more comments…
u/jylikangas

Clever!
u/katkip

im shocked #genius
u/aleamb

wow!
u/donbright

so great
u/eph_aim

beautiful!
u/katkip

#infinite #loop
u/magna

#pavel
u/KilledByAPixel

Perfect loop 60 fps #GIF for you https://imgur.com/gallery/5kY1gNX
u/Ath0r

just wow
u/artfarnaa

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