Dweets awesomed by u/Bugsy

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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ben

remix of d/4348 by u/lowpoly

function u(t) {

c.width^=0
x.globalCompositeOperation='xor'
for(p=2e3;p--;)d=p/300+1,x.fillRect(-99+(p+99*(t+5E4)*d)%2E3,(""+p*S(p)/9).substr(5,3)*2,d*=d,d)

Dec 30 2017 9:06 PM UTC

}// 140/140

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u/sigveseb

Tasteful use of xor!
u/New_Core

same effect can be done shorter with x.rect and x.fill('evenodd')

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Pjaerr

function u(t) {

c.style.background=R();x.fillStyle=R(...[S,C,T].map(_=>127*(_(t)+1)));a=137.5*frame;r=8*frame**.5;x.fillRect(r*C(a)+960,r*S(a)+540,8,8)

Dec 30 2017 7:50 PM UTC

}// 135/140

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A little bit of Phyllotaxis. http://algorithmicbotany.org/papers/abop/abo…

Show more comments…
u/Pjaerr

btw, changing the angle a from 137.5 to 137.3 or 137.6 produce different, albeit nice, patterns.
u/Bendoman

Second best thing on here by far.
u/dubistdu

WOW
u/trupples

Also.. shouldn't it be 137.5 * pi / 180 ~~ 2.39982772149 as the trigonometric functions take in radians?
u/trupples

137.5 also kind of "isolates" the spirals after a short while while 2.4 does not
u/Pjaerr

Yeah, that'll be it actually. I still thought it looked decent!
u/DiamondDrake

I was just working on a Phyllotaxis dweet, though i was trying to use ellipse that just needs way too many characters
u/@no_identd

Although the point about radians is fully correct, I'd like to point out that the most accurate IEEE single float approximation of this angle in degrees is 137.50777 (which internally becomes 137.5077667236328125)
u/lionleaf

#spiral #flower #plant #botany
u/fujimotos

This is amazingly beautiful.

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travisdoesmath

remix of d/4815 by u/travisdoesmath

function u(t) {

for(i=0;i<300;i++){x.fillStyle=R((i)%255,(i)%255,(i+20*t)%255);x.beginPath(),x.arc(960-i/9*S(i+t)*30,540+i/9*C(i+t)*30,i/2,0,6.28);x.fill()}

Dec 30 2017 6:01 AM UTC

}// 140/140

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u/crimbles

Remixed https://www.dwitter.net/d/5358

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ben

remix of d/4509 by u/ben

function u(t) {

v=(a,b,g,r)=>{for(i=0;i++<r;)x.fillRect(a+=S(g),b-=C(g),r/9,2)
r>1?v(a,b,g+=o,r*=.7)&v(a,b,g+=5,r):0}
o=S(t)/9+1
c.width=500
v(250,280,0,80)

Dec 29 2017 1:23 PM UTC

}// 140/140

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blowing in the fractal wind

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u/sigveseb

Sweet!
u/Xen

very nice!
u/Bendoman

Fabulous.
u/lionleaf

Amazing!
u/lynnlangit

love, love, love it!
u/nystrand

elegant!
u/iverjo

#recursive
u/lionleaf

#fractals
u/lionleaf

#fractal . hmm, maybe not plural
u/vain

so beautiful - amazing work!

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ebiester

remix of d/4452 by u/Xen

function u(t) {

c.width|=s=S(t)
x.translate(o=960,480)
for(i=o/2;i--;x.rotate(C(t/2)/i*t))x.fillStyle=R(i*C(t)+99,99,220-i),x.fillRect(i*6*s,i*6*s,i/6,i*5)

Dec 28 2017 10:53 PM UTC

}// 139/140

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Shouts back to Xen - this is really a minor tweak on his idea.

u/Xen

looking good

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ben

function u(t) {

function v(a,b,g,r){if(r>1){x.fillRect(a+=r*S(g),b-=r*C(g),2,2)
v(a,b,g-1+C(t),r*=.7)
v(a,b,g+.5+S(t),r)}}c.width=500
v(250,270,0,80)

Dec 28 2017 9:28 PM UTC

}// 133/140

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Show more comments…
u/Xen

LOVE IT!
u/ben

trying to make a swaying tree but requires too many characters to draw the branches
u/Xen

join the chat and show your code... :-)
u/sigveseb

Very good!
u/itsjustmustafa

recursive functions in under 140, love it!
u/Bendoman

Best thing on here by far.
u/FrankMoren27

awesome
u/iverjo

#recursive
u/lionleaf

#fractals
u/vain

incredible

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Xen

remix of d/4281 by u/ebiester

function u(t) {

c.width|=s=S(t)
x.translate(960,o=480)
for(i=o;i--;x.rotate(C(t/2)/i*t))x.fillStyle=R(i*C(t)*2,i,o),x.fillRect(i*6*s,i*6*s,i*2,i*2)

Dec 28 2017 6:09 PM UTC

}// 131/140

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Shoutz to ebiester.

u/ebiester

That's fantastic!
u/ebiester

Remixed your remix at #4550
u/Xen

thanks :-)

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tearfalas

function u(t) {

c.width=1920;
  for(i=0;i<128;i++){x.fillStyle=R(255-(i+C(t*2)*100),50,120);x.fillRect(i*15,600+S(3*t+i/10)*50,10,150*C(i+t)*i/60)}

Dec 27 2017 9:40 PM UTC

}// 131/140

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Exca

function u(t) {

t/=4;for(i=0;i<1100;i++){d=C(t+i),s=i==0?2920:9-d*8;x.fillStyle=R(i,i,i,0.1);x.fillRect(S(t*2.5+i)*220*S(C(t)+i%50)+960*(i==0?-1:1),i,s,s);}

Dec 27 2017 7:58 PM UTC

}// 140/140

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Show more comments…
u/magna

Wow!
u/Xen

impressive first 2 dweets
u/sigveseb

Very nice
u/mrremix

i really like this one... might do a remix later :]
u/CliffJonesJr

I remixed this into a tornado: https://www.dwitter.net/d/4590
u/lionleaf

#twister
u/Cloud

Milk path
u/vain

cool looking twister / tube

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Exca

function u(t) {

for(i=0;i<5184;i++){q=i%96,w=i/96|0,r=q+w==0?192:S(t+q*w),y=r*99;x.fillStyle=q+w==0?"#000":R(0,y*2,y*4,1);x.fillRect(q*20,w*20,r*20,r*20);
}

Dec 27 2017 3:10 PM UTC

}// 140/140

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u/sigveseb

Good colors
u/CliffJonesJr

This is what my carpet looks like after mushrooms.

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