Hot dweets by u/pavel

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: #Opposites

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pavel

function u(t) {

c.width|=f=(X,Y,r=Y,i=r>9&&3)=>{for(x.fillRect(X,Y,s=r<10&&12,s);i--;)f(X+r/2*C(a=23*i+t*C(i)),Y+r/2*S(a),r/2)}
f(960,540)

Mar 27 2020 6:17 AM UTC

}// 122/140

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Why can't you just be normal #sierpinski ?

Show more comments…
u/pavel

I have no idea why this works. I was messing around with something else and then a sierpinski triangle popped out and started spinning around...
u/xem

love the explanation ^ :D
u/katkip

nice
u/pavel

I think I figured it out. If you set s=12 the structure becomes more apparent. +t*C(i) doing SO MUCH WORK is an amazing accidental find.
u/pavel

This certainly looks like a 2d projection of something 3d, how to get the depth information?
u/pavel

The trick is to rng three 2d vertices and smoothly vary them. Every combination uniquely maps to a valid 2d projection of a 3d plane so our brains infer the 3d shape.
u/pavel

for(c.width|=i=3;i--;x.lineTo(960+500*S(i*t),540+500*S(i+t)));x.fill()

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pavel

function u(t) {

for(c.width=w=480,i=999,f=g=>S(i)*g(t)+r*S(i*w)*g(t+8);i--;x.fillText('#=*-.'[z-9|0]||'',240+w*f(S)/z,135+w*r*C(i*w)/z))r=2+C(i),z=15+2*f(C)

Mar 25 2020 4:10 AM UTC

}// 140/140

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#ascii #donut

u/Odog8

Hmm, I' m intrested in how this works?

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pavel

function u(t) {

for(c.width|=0,x.scale(20,20),i=4;i--;x.fillText([..."🦇🥣📈📉😃🙂😨😱"][i<2?i:i<3?4+q>>1:4+~~q],[1+20*q,80,52,32][i],i<2?40:20))q=4/(1+256**C(t))

Mar 20 2020 12:31 AM UTC

}// 138/140

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#corona #meme

u/13thptr

kek
u/13thptr

kek
u/13thptr

kek
u/13thptr

Wtf ? why was my comment posted three times ?
u/digitalfl

very cool φ(゜▽゜*)♪

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pavel

remix of d/18021 by u/DaSpider

function u(t) {

for(c.width|=0,x.scale(8,8),x.strokeRect(i=3,-2,240,135);i--;x.fillText(o?'💩':i?'Re':'Im',o?5+205/a:5+220*i,i?130-o*a:9))a=1+128/8**t,o=i>1

Mar 19 2020 3:42 AM UTC

}// 139/140

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💩 JUST GOT REAL 2

u/DaSpider

That bat soup better have been real good
u/pavel

This comment inspired me to make d/18029

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pavel

remix of d/17888 by u/New_Core

function u(t) {

for(k=c.width|=0;j=--k>>6;x.fillRect(960+99*(2*C(j)+S(i*22))/z,540+(99*S(j)+i*S(v=i/69)*C(v-5*q))/z,4/z,8*S(4*v-4)/z))i=k%64,q=t+j,z=5-q/3%5

Mar 11 2020 7:08 PM UTC

}// 140/140

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Birds 2

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pavel

remix of d/13711 by u/pavel

function u(t) {

for(let i=c.width|=f=g=>2*g(2*j/3)+g(-j/3);i--;x.fillText(i*i,960*(z+h(S))/z,540+960*f(C)/z))h=g=>S(j=i/130+5*t)*g(t)+f(S)*g(t+1.6),z=7-h(C)

Mar 8 2020 9:20 PM UTC

}// 140/140

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#trefoil ribbon

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pavel

function u(t) {

c.width|=f=(X,Y,w)=>X*X+Y*Y<=2e6*S(t/9)**2?w>9&&f(X,Y,w/=2)|f(X+w,Y,w)|f(X,Y+w,w)|f(X+w,Y+w,w):x.strokeRect(X,Y,w,w);f(x.lineWidth=4,4,1072)

Mar 4 2020 5:31 AM UTC

}// 140/140

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Quadtree

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u/katkip

Awesome!
u/tomxor

I love it !
u/sigveseb

Cool!
u/Xen

SEXY!
u/aleamb

love it!
u/tomxor

#Quadtree
u/Qwitter

YES!!
u/vain

Never saw this fx before. But it looks really beautiful

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pavel

function u(t) {

with(x){for(beginPath(t||scale(9,9)),fillText('STONKS',160,99),i=2;i--;lineTo(6*j,111-j*j/9+11*S(4*j)))j=~~t+i;rect(1,-1,222,111);stroke()}

Feb 22 2020 5:46 AM UTC

}// 139/140

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Stonks #growth

u/pavel

#meme
u/mole

I appreciate this

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pavel

remix of d/17613 by u/DaSpider

function u(t) {

with(x)for(i=35;i--;fillStyle=R(320-r,160-r))for(j=6;j--;fill(ellipse(960,540,r=1.2**(i+t%2-2),5*r,(j+i/2+t/6)%6*Math.PI/6,0,7)))beginPath()

Feb 14 2020 3:47 AM UTC

}// 140/140

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#flower

u/katkip

nice
u/ivylab

zomg beautiful!

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pavel

function u(t) {

for(i=c.width|=f=g=>22/7/(1+1e3**g(2*t+i%32/16));i--;x.fillText('dn',-6,3))x.setTransform(6,0,0,6,6*i+i%2*96,i%32*96-f(S)*61),x.rotate(f(C))

Feb 13 2020 8:21 AM UTC

}// 140/140

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up / dn #beesandbombs

u/pavel

https://beesandbombs.tumblr.com/post/1674924…
u/pavel

Not quite the same due to golfing but still looks good I think
u/andrea270872

Amazing. I could swear that the letters are bending... which is impossible! Wow!
u/eduft15

Amazing!

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