Dweets awesomed by u/veubeke

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: #Opposites

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yonatan

function u(t) {

s=c.style;s.backgroundBlendMode='lighten';for(b=[i=20];i--;)b[i]=`radial-gradient(at ${50+S(t+i)*50}%${i*5}%,tan,#210 25%)`;s.background=b

Oct 23 2018 7:51 PM UTC

}// 138/140

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More Worley noise - via https://codepen.io/supah/pen/oaEZqg

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u/veubeke

Amazeballs!
u/aleamb

amazing!!
u/anotherkitten

this feels gross but i like it
u/lionleaf

#organic #voronoi #cell #squishy
u/katkip

genius
u/joeytwiddle

Like bacteria in rush hour. I agree with what anotherkitten said.

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veubeke

function u(t) {

with(x)for(fillRect(0,0,c.width^=i=0,2e3),globalCompositeOperation='xor';i++<10;fillText('👻',960-_,500+_))_=S((t+i/5)%3)*400,font=_*2+'px"'

Oct 22 2018 12:33 PM UTC

}// 139/140

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#ghost

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veubeke

function u(t) {

x.fillRect(0,0,1920,1080)
for($=14;$--;)
for(x.font='120px"',i=6*$;i--;)
x.fillText('👻',900+C(a=i/$/.954+t)*(_=120-S(t)*40)*$,600+S(a)*_*$)

Oct 22 2018 8:25 AM UTC

}// 139/140

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#ghost vision - stare at it for a while then somewhere else

u/joeytwiddle

That worked pretty quickly

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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) {

w=c.width=500
for(i=98;i--;)for(j=55;A=i-49,B=j-28,j--;)x.fillStyle=R((A*A+(B-S(t*2)*20)**2)*(B*B+(A-C(t)*40)**2)/w),x.fillRect(5*i,5*j,5,5)

Oct 21 2018 2:26 PM UTC

}// 140/140

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@veubeke helped trim 2 characters.

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veubeke

function u(t) {

x.drawImage(c,C(T=t*99)*($=1+t),S(T)*$)
x.save(x.font='200px"')
x.transform(1,_=-S(t*7)/20,_*-5,1,960,580)
x.restore(x.fillText('👻',-99,0))

Oct 21 2018 1:06 PM UTC

}// 139/140

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1-800-Ghost Dance - WARNING: flickering increases over time

u/veubeke

Soundtrack: https://www.youtube.com/watch?v=IA6o4vq2ldU
u/veubeke

#ghost

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anotherkitten

function u(t) {

for(d=19;d--;x.beginPath(x.fill())){p=d+t%1;x.fillStyle=`hsl(${140+t*2} 66%${80-S(p/4)*40}%`;x.arc(960,540,p*60,o=p/2+t/2,++o)}

Oct 21 2018 3:06 AM UTC

}// 127/140

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cute spiral

u/Agnes

Consider using properly formatted HSL if you have the characters to spare - these all show up as 100% black on iOS Safari!
u/anotherkitten

true, should have done, just habit to use the broken one

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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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veubeke

function u(t) {

c.width^=0
x.fillStyle=R(T=255,T,T,.2,x.font=T+'px"',x.fillText('Fog',760,560))
for(i=20;i--;)x.fillRect(850+C($=t/9+i)*180,T+S($)*200,T,T)

Oct 19 2018 7:18 PM UTC

}// 139/140

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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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