Dweets awesomed by u/prplz

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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anotherkitten

remix of d/10600 by u/anotherkitten

function u(t) {

for(t+=i=17;i--;x.beginPath(x.fill()))p=i+t%1,x.fillStyle=`hsl(${(p-t)*9} 50%${i-t&1?40:60}%`,x.arc(960+C(p+t)*p*p,540+S(p+t)*p*p,5*p*p,0,7)

Oct 22 2018 4:11 AM UTC

}// 140/140

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odd spiral

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u/veubeke

wow
u/joeytwiddle

I really like these colours
u/pavel

groovy!
u/DataMeta

Niiice!
u/aleamb

yeah! cool!
u/pavel

You use a trick that does not work on iPhone. In the HSL call you need a space between S and L.
u/veubeke

@pavel: here’s a version that works in Safari d/10641

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ersagun

function u(t) {

for(i=j=0,f=24;f--;i+=d("◴∈⌹⌙⍈⌮⌠⌇⌢⌑⌆⌤⌾⍃⌣⌘⌯⌧〈⌳〉⌤⌬⌯"),j+=d(
"○⍈⌾⋻⌤⋧⌥⌬⌰⍕⍓⌗⌥⋼⌘⌭⋧〉⌔⌗⍃⌫⌛〈"))d=a=>C(t*f)*(a.charCodeAt(f)-9e3)
x.fillRect(i,j,9,9)

Oct 21 2018 12:11 AM UTC

}// 140/140

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#yeah

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u/ersagun

This uses a modified version of DCT. All data is in 2 magic strings. To create your own: https://pastebin.com/zEH5aH1R copy this to a dweet draft, draw, get your own magic strings.
u/katkip

wait wot that s actually toi impresive to think how its made
u/iverjo

Clever!
u/Banjuan

Wow dude!
u/Banjuan

Wow dude!
u/magna

yup.
u/aleamb

yeah!!!
u/f8f82804

Awesome! I don't think I've seen a technique like this before! #compressed #math
u/cantelope

crazy cool

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pavel

remix of d/10485 by u/joeytwiddle

function u(t) {

for(z=42;j=z-->>1;x.fillRect(960+S(k)*15-w/2,540+C(k)*15+w/2-r,w,2*r-w))k=7*t-j/2,x.fillStyle=`hsl(${15*k},33%,${7*j}%)`,r=50*j,w=r*(.5+z%2)

Oct 20 2018 8:43 PM UTC

}// 140/140

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Fixed the plus shape in the back and added color cycling

u/pavel

Check it out in fullscreen

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tomxor

remix of d/10534 by u/tomxor

function u(t) {

k=160,i=1e3,w=.04
for(t+=32;p=i&1,m=k/C(t/i)+p*(k/2+i%k),i--;)x.fillRect(
960+m*S(n=t/16+i*i)*C(!p*i/t),
540+m*C(n+p*2),s=w-C(n)*w,s)

Oct 20 2018 1:58 PM UTC

}// 133/140

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#space #saturn #drawing

u/katkip

oh wow
u/joeytwiddle

Very nice. Set w=.2 if you don't want to #waitforit
u/tomxor

Oops, this doesn't seem to work at all in some browsers... showing up the aignificant subpixel interpolation differences between canvas implementations. Works in chrome - soz

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akx

function u(t) {

for(c.width=i=500,x.font="300px sans";i--;)with(x)save(),beginPath(),rect(0,i,1e4,1),clip(),fillText("👻",99+30*S(.02*i+5*t),270),restore()

Oct 20 2018 12:40 PM UTC

}// 139/140

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spooky!!!

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ersagun

function u(t) {

j=C(T=t*4-S(t*8)/2)-S(Math.acos(1-Math.abs(i=S(T))))
z=(a,k)=>(a*(3-C(T/27))+k)*99
x.lineTo(z(i,9),z(j/1.5,7))
x.stroke()

Oct 19 2018 6:55 PM UTC

}// 121/140

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I thought I should start simple. Heart formula I used here is a parametrization of a heart formula I derived some years ago.

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rnbw

function u(t) {

c.width=1920;x.fillStyle='#dbf';for(j=-16;j<159;j++)for(i=0;i<36;i++)x.fillRect(-600+i*99+C(t+j/20+i/5)*(S(t*3+i)*99),8*j+C(t+i/2)*99,99,9)

Oct 19 2018 4:36 PM UTC

}// 139/140

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oh would you look at that, now i can say i've made a dweet! (the performance isn't very good from what i've experienced, but the visual turned out well, so make of it what you will)

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tomxor

function u(t) {

x.fillRect(0,0,i=2e3,i)
for(t+=160;p=i&1,m=t/C(t/i)+p*(t/2+i%t),i--;)x.clearRect(
960+m*S(n=t/9+i*i)*C(!p*i/t),
540+m*C(n+p*2),s=3-C(n)*3,s)

Oct 17 2018 8:45 PM UTC

}// 140/140

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#space #planet #saturn

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u/joeytwiddle

Wow, beautiful! I am blown away. #dots #lighting #shading
u/lionleaf

Wow! That's amazing
u/magna

WOW!
u/sigveseb

no way!
u/yonatan

beautiful!
u/jellyedwards

That's incredible, well done!
u/jellyedwards

If you change this bit too use t it's like Saturn uses its ring as a hula hoop: 540+m*C(n+p*t)
u/katkip

woow... gj bro
u/keithclark

Nice!!!
u/aleamb

wow! superb!
u/iverjo

That's pretty rad
u/rnbw

my mind is officially boggled o_o
u/Purpzie

This is absolutely beautiful.
u/tomxor

Thanks for all the kind comments :) for those interested: the key is in the parity bit p=i&1 this allowed me to combine two different but similar functions by multiplying parts in an out on each iteration. You should be able to pull the two apart into something more intelligible.
u/magna

@tomxor are you on Twitter as @tomxor by any chance?
u/tomxor

I am not, nor am I on any other social network... unless you consider Github one :P but a different pseudonym..
u/jylikangas

Beautiful dweet!
u/aleamb

The Cosmos is all that is, or ever was, or ever will be. The contemplation of the this Cosmos stir us.
u/Renaud___

so Beautiful
u/ivylab

This is absolute badass
u/vain

OMG! This part blew me away!
u/jdspugh

Well done!

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keithclark

function u(t) {

for(c.width=640,i=4e3;i--;x.fillRect(320-(3+S(t)-i%8)*J,210-((i/8&7)-2.2)*J,J/=2,J))J=i/64&4&&85/(i/64+t%.9*9)*60,x.fillStyle=R(q=2e4/J,q,q)

Oct 17 2018 4:20 PM UTC

}// 140/140

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u/yonatan

Very nice!
u/aleamb

wow, great!!
u/magna

Get out!
u/joeytwiddle

:-D
u/iverjo

Very good!

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yonatan

function u(t) {

for(k=c.width=314;T=k--/5;x.arc(99+(Y*S(t)+X*C(t))*r,80+(2*C(2*T)+C(T))*r,r/2,0,7))X=2*S(2*T)-S(T),Y=S(3*T),r=(9+X*S(t)-Y*C(t))*2
x.stroke()

Oct 17 2018 1:48 PM UTC

}// 140/140

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#trefoil #knot

u/katkip

this looks nice
u/tomxor

Neat knot! looking forward to playing with this one.
u/iverjo

Hot or knot?

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