Top dweets of all time

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: #Food

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katkip

remix of d/14469 by u/katkip

function u(t) {

c.width*=1;x.lineWidth=9;for(i=211;i--;)x.beginPath(),r=S(t+i/59+S(t+i/29))+1.1,x.arc(960,140,10+i*4,r,r+1),x.stroke()

Jun 6 2019 2:46 PM UTC

}// 118/140

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u/joeytwiddle

Spooky

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Jezza

function u(t) {

for(i=9,j=.1,X=960,k=Y=540;k/=2,i--;j*=-3)X+=C(t*j)*k,Y+=S(t*j)*k,x.fillRect(X,Y,1,1)

Apr 29 2019 2:38 AM UTC

}// 85/140

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#epicycles #notstrictlyepicycles

u/vinca

Beautiful and minimal code.
u/artfarnaa

Agree, well done.
u/katkip

WTF! You published a #fractal #spirograph with 5 minutes before me! I was gonna create the exact same ideea. Wow

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KilledByAPixel

remix of d/13291 by u/KilledByAPixel

function u(t) {

t||x.rotate(.7854,x.font="300px'",x.fillText("ᴛʜᴇ 𝕃ᴇɢᴇɴᴅ ᴏꜰ 𝔻ᴡᴇᴇᴛ",210,1e3,1500))
for(i=1024;i--;)x.fillRect(705+(i&i/t),370-i,9,9)

Apr 20 2019 12:11 AM UTC

}// 131/140

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♥ ♥ ♥ #Zelda

u/KilledByAPixel

#sierpinski
u/Xen

its not.. but feels like triforce,,,,, new dwitter age maybe
u/KilledByAPixel

is better than triforce, has infinite triangles instead of just 3
u/katkip

#design
u/KilledByAPixel

#logo

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katkip

remix of d/13245 by u/katkip

function u(t) {

c.width+=0;x.translate(960,540);x.globalAlpha=.02;for(r=4;r<1000;r+=5)x.fillRect(-r/2,-390+r/2,10+r,r/4),x.rotate(C(t*4+r/199)/199)

Apr 15 2019 11:56 AM UTC

}// 131/140

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u/Jezza

Nice!

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andrea270872

remix of d/12771 by u/andrea270872

function u(t) {

c.width|=K=1e3
A=[(t*97%11-5)*K,(t*89%13-6)*K,0]
P=t?P.map(([i,j,z,v])=>[i,j,(z+1)%99,x.fillRect(K+i/z,500+j/z,z,z)]):[A]
P[K]||P.push(A)

Mar 15 2019 7:44 PM UTC

}// 137/140

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Build-up!

Show more comments…
u/Xen

love it
u/pavel

103 for(c.width|=K=k=1e3;k--;z>0&&x.fillRect(K+(k*97/60%11-5)*K/z,500+(k*89/60%13-6)*K/z,z,z))z=(60*t-k)%99
u/pavel

Looks like the code you started with used Math.random at each step which made the ultimate position of each square at time 't' impossible to determine directly. Switching to instead use any function of just t makes it quite simple so there is no need to initialize stuff at time 0 and keep it updated.
u/pavel

I learned that in d/11421 to save chars and make d/11424
u/andrea270872

great. thanks very much
u/andrea270872

In my head I was thinking also that t*97%11 is a pseudo-random generator...
u/katkip

Satisfying

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yokljo

remix of d/12755 by u/Jezza

function u(t) {

x.fillRect(0,0,1920,1080)
X=C(t)*4+16
Y=S(t)*2+9
for(i=9;i--;)Z=S(Y),Y+=S(X),X+=Z,x.clearRect(X*60,Y*60,3*i,3*i)

Mar 15 2019 9:24 AM UTC

}// 112/140

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I haven't actually put the time into understanding how this works, but that doesn't stop me from remixing it!

u/lionleaf

#attractor :)

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tomxor

function u(t) {

f=_=>S((X*X+Y*Y)**.5*5+t)
eval(unescape(escape`景爨爽ㄶⱣ⹷楤瑨㵩㵲⨱㈻椭㴱⽲㭸⹦楬汒散琨爪⡘⨲⭙⬶⤬爪⡘⼲ⵙ⬳⭚⤬㌬㌩⥚㴱ⵦ⡘㵩┲ⴱⱙ㵩⽲⼶ⴱ⤬砮晩汬却祬攽恈卌⠤筚⨱㈰紬㤹┬㔰╠`.replace(/u(..)/g,"$1%")))

Mar 6 2019 9:35 PM UTC

}// 140/140

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Surface Plot #application

u/tomxor

Mini surface plotter! for visualising 2D scalar fields. Plug your own function into f :)
u/f8f82804

#d3
u/aleamb

wow!
u/katkip

f=_=>S(X*X*t+Y*Y*t)+C(X*X*t-Y*Y*t)
u/tomxor

#app

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pavel

remix of d/701 by u/sigveseb

function u(t) {

for(x[f='fillRect'](i=8,0,2e3,2e3);w=3*i--;)for(x.fillStyle=R(s=666/i,s/2,s/4),k=w*w;b=k--/w|0;a+b&1&&x[f]((a-t%2)*s,(b-2+S(t))*s,s,s))a=k%w

Mar 4 2019 8:47 PM UTC

}// 140/140

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More layers and a black background #improved

u/sigveseb

Nice!

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ds0

remix of d/12186 by u/ds0

function u(t) {

c.width|=r=540
for(i=r;i--;){Y=r-(2*i)
W=(2*(r**2-Y**2)**.45)
x.fillStyle=R(255*S(t+111*i))
x.fillRect(960-(W/2)+.8*r*S(t+111*i),540-Y,W,3)}

Feb 6 2019 3:00 AM UTC

}// 140/140

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Red Visitor

u/katkip

??
u/Galaxtone

He keeps swapping

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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