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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

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pavel

remix of d/9676 by u/f8f82804

function u(t) {

for(i=c.width=480;r=6*S(b=--i/153);S(t)>0&&x.beginPath(x.fill(x.ellipse(240+20*X,135+120*C(b),r*S(t),r,Math.atan(6*C(b)/X),0,7))))X=r*C(++t)

Jun 16 2020 9:02 PM UTC

}// 140/140

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Spot the #sphere

u/f8f82804

This is beautiful!
u/Qwitter

Wow!!!!!
u/vain

just great! <3

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pavel

function u(t) {

for(i=c.width|=0;j=--i>>5;x.fillRect(960*(z+S(j*j)+r*C(i))/z,3e3*(.2+m*(m<0&&-1)**i)/z,s=--m*9/z,s))m=(t+j/7)%2-1,r=m>0&&m/3,z=2+S(j)+r*S(i)

Mar 25 2020 8:28 AM UTC

}// 140/140

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Reflections on #rain

u/katkip

beautiful
u/aleamb

amazing
u/vain

amazing rain drop fx

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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

Best dwitter

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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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jylikangas

function u(t) {

for(c.width=W=i=512,t*=w=99;--i;x[f](225-z+(t--&2?z*2:t&9?0:z)+S(t/w)*i,w+z,z/=7,z))z=2e3/i,x[f='fillRect'](!x[f](i,0,S(t/W),w),w+z/32,W,.5)

Nov 20 2018 4:55 PM UTC

}// 140/140

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I drove all night (and day)

u/cantelope

amazing! #road #synthwave
u/pavel

The backdrop is glitched on mobile Safari.
u/jylikangas

137b: for(c.width=W=i=512,t*=w=99;--i;x[f](225+(t--&2?z:t&9?-z:0)+S(t/w)*i,w+z,z/=7,z))z=2e3/i,x[f='fillRect'](!x[f](i,0,S(t/W),w),w+z/32,W,.5)
u/iverjo

Wow!
u/taupelink

#scene

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yonatan

remix of d/7105 by u/yonatan

function u(t) {

for(X=c.width=99;X--;)for(Y=57;Y--;x.fillRect(X,Y,1,1))q=X*X+Y*Y,z=(9e3-q)**-.3,x.fillStyle=`hsl(${(t*9+X*z^Y*z)*22},50%,${95-q**.5}%`

Feb 28 2018 10:31 AM UTC

}// 134/140

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lit and colored

Show more comments…
u/donbright

!!!!!!!!!!!!!!
u/sigveseb

Lit af
u/magna

^
u/joeytwiddle

#lighting #sphere
u/FireFly

Holy cow!! :o
u/Cloud

Wooooow!!!
u/vain

amazing!

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cantelope

remix of d/2845 by u/cantelope

function u(t) {

A=960,B=540,x.fillRect(0,0,D=2e3,D)
for(i=D;i--;)x.clearRect(A+1/(Z=2.5+C(p=i*C(t/2)/40)*S(q=i/628))*(X=S(p)*S(q))*A,B+C(q)/Z*A,s=69/Z/Z,s)

Jul 10 2017 4:43 AM UTC

}// 140/140

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Show more comments…
u/lionleaf

That's really neat!
u/Polyducks

This is amazing! What's the concept behind it? How are you getting the sphere?
u/cantelope

@Polyducks, it's a golfed version of the equation of a sphere [x=sin(p1)*sin(p2);z=cos(p2);z=cos(p1)*sin(p2);] combined with a tiny 3D projector, X=cx+1/z*x*cx; Y=cy+y/z*cx, where cx/cy is center screen, and x/y/z are the 3D coordinates. Hope that makes sense! :)
u/cantelope

*equation of a sphere: [x=sin(p1)*sin(p2);y=cos(p2);z=cos(p1)*sin(p2);]
u/alien

thanks for that, is projector a mathematical construct? does it have other names?
u/cantelope

@alien it's my own invention, the product of years of research into geometry. I wrote a tutorial with a (very ungolfed) version here https://cantelope.org/3D
u/alien

*__*
u/alien

All the lienar algebra and vectorial calculus in my bachelor finnally comes to life in my head... this is soooo cool @cantelope...
u/donbright

bravo... bravo
u/ximavus

Amazing!

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iverjo

function u(t) {

c.width=384;for(i=20;i--;)for(j=9;j--;)if(!i||(i^j)%2){x.fillStyle=R(a=i?0:240),x.fillRect(i*20+j%2*4*S(t)-25+9*S(j),j*20,i?20:420,i?20:2)}

Mar 2 2017 6:29 PM UTC

}// 139/140

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Optical illusion thingy. It's supposed to look like the red lines are not really straight and parallel. #bartjs

u/sfz

it works, trippy!
u/iverjo

Fun fact: This was actually the first idea I ever had for a dweet, back in december 2015 when sigve made https://github.com/sigvef/arktis-tweet-demo/
u/donbright

great illusion
u/SpecialAgent

Expecting a gorilla and some barrels to come hurtling down. Love it.
u/iverjo

#opticalillusion

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tomxor

remix of d/25759 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𭀿𭰽𨰮𭱩𩁴𪀦👩🐸𜰲𜀺𠐽𠠽𥐽𥠽𜀻𪐭𛐻𥀽𤰨𜠪𭀫𜠪𣑡𭁨𛡡𭁡𫠲𚁃𚁘𛰸𚐬𤰨𭀫𦐯𞀩𚐩🠰𚑸𛡦𪑬𫁒𩑣𭀨𦀽𪐥𭰬𦐽𪐯𭰬𜐬𥁼𤠼𜀩𛁡👘𛑁𛁢👙𛑂𛁒👡𚡡𚱢𚡢𛐲𝐬𥀦𤠼𜐦𙠨𥐭👡𛁖𛐽𨠩𞱁𚰽𥐯𝀸𚱷𛁁𙐽𭰬𠠫👖𛰲𝀫𭰬𠠥👷𛁖𚰽𞀭𥠯𞀻`.replace(/u../g,'')))

Oct 10 2022 2:14 PM UTC

}// 140/140

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Infinite Falling Marble #Physics

Show more comments…
u/tomxor

This sh**'s chess, it ain't checkers
u/magna

Crazy!
u/vain

Holy sh*t... 😮 that's incredibly impressive! 👍 Really enjoying watching it. Great work!
u/lonestar108

blows my mind every time
u/neimad

wizardry
u/mrperson59

Delete the last 4 chars in the compressed string and watch the ball wobble around like mad
u/tomxor

Yeah -V/8 is for velocity damping on Y. Which is necessary with velocity based collision resolution. An alternative that doesn't require this is verlet integration, but that requires far more characters.
u/Qwitter

Cool
u/nix

r u effin kiddin me?

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pavel

function u(t) {

for(f=c=>Math.tanh((r>1?3:13)*S(9*c/d)),Y=t/3-1,i=2e3;i--;x.fillRect(i,t*180,(1+f(X)*f(Y))*(d/2+Y/3.6),3))X=i/540-16/9,r=X*X+Y*Y,d=r>1||C(r)

Apr 22 2020 6:18 AM UTC

}// 140/140

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Experimenting with #raytracing. I finally figured out why the cosine trick from d/1112 works.

u/Cloud

WOW!