Dweets awesomed by u/21medals

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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21medals

remix of d/12273 by u/21medals

function u(t) {

if(2>(n=frame%(i=1e3)))for(d=[];i--;)d[i]=i**9%540
for(c.width=i=999;i--;i<n&&d[i]<(q=d[i+1])&&d.splice(i,2,q,d[i]))x.fillRect(i,0,1,d[i])

Feb 10 2019 2:17 PM UTC

}// 138/140

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Slowly sorting 1000 values using insertion #sort

u/katkip

Cool

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21medals

function u(t) {

if(2>frame%(i=1e3))for(d=[];i--;)d[i]=i**9%540
for(c.width=i=999;i--;d[i]>(q=d[i+1])&&d.splice(i,2,q,d[i]))x.fillRect(i,0,1,d[i])

Feb 10 2019 1:36 PM UTC

}// 129/140

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Slowly sorting 1000 values using bubble #sort

u/21medals

if(2>frame%(i=1e3))for(d=[];i--;)d[i]=i**9%540 for(c.width=i;i-->0;v>(q=d[i+1])&&d.splice(i,2,q,v))x.fillStyle=hsl(${v=d[i]},99%,50%),x.fillRect(i,0,1,v)

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username

remix of d/12136 by u/username

function u(t) {

for(i=j=f=24;d=a=>C(t*f)*(a[0].charCodeAt(f)-9e3),f--;i+=d`⚽Å⍈⋕⌔⌮⌰⋮⌅⌻⍉⌬⌚⌔⌴⌌⌵⌞⌹〈⌭⌤⌰⌦`)j+=d`⒭⍄⌹⍏⌤⍈⌉⌖〉⌢⌛⌡⌼⌡⌽⌉⌊⌱⌔⌡⌦⌦⌤〉`
x.lineTo(i,j)
x.stroke()

Feb 4 2019 3:23 PM UTC

}// 140/140

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#wow

u/magna

Wow indeed!

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rodrigo.siqueira

function u(t) {

X=Y=0
for(c.width|=i=1e3;i--;){
X=X*C(2*t+Y*2)+Y/4
Y=C(X+Y+X+t/3)-S(i+X+t)/3
x.fillRect(960+X*820,540+Y*400,5,5)
}

Feb 4 2019 2:16 AM UTC

}// 114/140

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Interaction of live attractors

u/katkip

WOWWW #attractor AWESOME
u/donbright

WOAH

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joeytwiddle

remix of d/11968 by u/joeytwiddle

function u(t) {

c.width|=0;o=t*7%15.7-22/7;j=o>0;w=(99-j*80-j*o*1.6)*S(!j*o+j*o*4);x.ellipse(920,850-j*600*S(o/4)-w,200-w,200+w,0,0,7);x.fill()

Jan 27 2019 5:54 AM UTC

}// 127/140

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New_Core's bouncing ball + squash = jumping jack

u/katkip

Nice
u/katkip

#physics #jelly
u/DataMeta

Delightful!
u/joeytwiddle

Change o*4 to o*3 for a slower wobble

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f8f82804

remix of d/11689 by u/f8f82804

function u(t) {

for(i=c.width^=0;i--;x.fillRect(X/d+960,Y/d/.9-1150,s=47-d*2e4,s))a=S(ϕ=i/612),θ=i*37+C(i/99+t),d=Math.hypot(X=S(θ)*a,Y=C(ϕ)+3,C(θ)*a+5)/3e3

Jan 11 2019 8:11 PM UTC

}// 140/140

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#waves on a #perspectives #sphere -- #d3 #pointcloud

u/f8f82804

this dweet uses a better perspective transform based on Math.hypot -- #hypot
u/f8f82804

The projection still isn't perfect, because I'm rotating the sphere's axis towards the viewer by positioning it below the camera. The resulting distortion is approximately corrected by scaling the Y coordinate with /.9.
u/f8f82804

#perspective

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katkip

remix of d/11305 by u/katkip

function u(t) {

t||x.translate(960,540);x.rotate(1.57);x.fillRect(0,500,5,20),x.fillStyle=R(128+T(t),128+C(t)*99,128+S(t*3)*99);x.drawImage(c,0,0,2e3,1e3)

Dec 5 2018 3:04 PM UTC

}// 138/140

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Looking at this saved me from suicide

Show more comments…
u/firegodjr

Insanely cool
u/magna

Wow! This is rich. #keepsongiving And I also hope you're feeling OK (re: the suicide comment, that should never be overlooked.)
u/katkip

I am pretty retarded, sorry :'}
u/metamero

@magna thanks for your precise words!!
u/metamero

an @katkip I'm your fan <3 <3
u/donbright

reach out if you need it, 1-800-273-TALK (8255)
u/joeytwiddle

#kaleidoscope
u/katkip

number #1 in top, 10 dec 2018, yay
u/katkip

(weekly)
u/13thptr

very good, especially in fullscreen
u/KilledByAPixel

beautiful
u/lars-erik

138 bytes doesn't get better than this! 🤯❤

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veubeke

function u(t) {

c.width^=0
x.font='200px"',
x.fillText('Mirrored',590,540)
for(i=27;i--;)x.drawImage(c,500,405+i*5,800,5,500+C(i/2+t*8)*8,700-i*5,800,5)

Nov 4 2018 6:48 PM UTC

}// 136/140

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tomxor

function u(t) {

c.width=w=120
for(i=w*33;i--;x.fillRect(i%w,i/w*2,1,2))f=i%w+t*60,n=T(0|(i/w+f^f-i/w)/(t**.7+6)),x.fillStyle=R((n&1)*i/n/8,n**n,(n&3)*i/n/4)

Nov 3 2018 5:53 PM UTC

}// 140/140

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#retro #fractal #game

Show more comments…
u/tomxor

For the lazy game designer... Just add chip tunes and a player :D
u/tomxor

#crt #degauss #sidescroller
u/magna

Awesome!
u/magna

I had a RGB CRT setup, but I hadn't been able to fit any interesting patterns: d/7512
u/tomxor

I had a look at yours magna, they are true crt, much more realistic i think. The scan lines on this are just a sideeffect I exploited and it was easy to add colour distortion in the R().
u/magna

Here we go: d/10843
u/C010011012

is it a cellular automata?
u/tomxor

Yes and no, it's a fractal n=T(0|(i/w+f^f-i/w)/(t**.7+6)) which is just a more elaborate variation of serpinsky triangles to produce more interesting patterns. Some fractals are automata, but not all automata are fractals, see here: https://en.wikipedia.org/wiki/Rule_90
u/tomxor

The implication is serpinsky triangles are computationally reducable, meaning it does not have to be computed in the same way as a cellular automata i.e state can be computed at step t directly without traversing intermidiate steps.

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yonatan

remix of d/10782 by u/yonatan

function u(t) {

for(i=c.width=99;i--;T=(j,t)=>S(j*j+i/j-t*7)+C(j**5-i/j*7+t)**3)for(k=j=56;j-->-k;x.fillRect(i,a,1,(j>0)*T(j,t)*j/k-q*q))q=T(a=j/2+30,0)/j*2

Oct 31 2018 11:54 AM UTC

}// 140/140

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Show more comments…
u/katkip

i love your #realistic design
u/jylikangas

YES!
u/aleamb

OMFG!
u/yonatan

:O https://twitter.com/aemkei/status/1057749002…
u/lionleaf

#landscape #water #mountains #real
u/sigveseb

Full-on insanity
u/iverjo

So good!
u/katkip

#d3
u/joeytwiddle

#scene
u/vain

beautiful work! titanic, iceberg ahead
u/jdspugh

Amazing!

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