Dweets awesomed by u/metamero

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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marc8

function u(t) {

c.width=480
z=99
for(j=-2*z;j<2*z;j++)
{k=j<-z?j+z:j>z?z-j:0
for(i=0;i<9;i++)x.fillRect(z+i*25+S(t)*75+2*k*C(t+k/z),z+j/4,12+10*k/z,1+k/z)}

Mar 15 2019 4:00 PM UTC

}// 140/140

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#default

u/Xen

nice
u/tomxor

Eery, feels like some kind of swimming creature!

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yokljo

remix of d/12758 by u/yokljo

function u(t) {

c.width|=0
X=C(t)+16
Y=S(t)+9
x.beginPath()
x.lineWidth=9
for(i=9;i--;)Z=S(Y),Y+=C(X),X+=Z-S(t),x.lineTo(X*60,Y*60)
x.stroke()

Mar 15 2019 10:29 AM UTC

}// 126/140

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Jezza

remix of d/12736 by u/Jezza

function u(t) {

x.fillRect(0,0,1920,1080);X=C(t/2)*6+16;Y=S(t/2.1)*6+9;x.globalAlpha=.05;for(i=99;i--;)Z=S(Y),Y+=C(X),X+=Z,x.clearRect(X*60,Y*60,5,5)

Mar 15 2019 12:30 AM UTC

}// 133/140

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Shoutout to @katkip for #attractor rabbit hole.

Show more comments…
u/tomxor

wow
u/katkip

Nice
u/aleamb

yeah!
u/jick

Wow!
u/lionleaf

That's amazing!
u/lionleaf

#grid
u/sigveseb

Rad
u/vain

How? So beautiful and impressive

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camel_case

function u(t) {

l={}
p=0.01
r+=0.007
for(i=0; i<50; i++){
p+=r*p*(1-p)
l[i%h]=p
for(j=0; j<h; j++){x.fillRect(t*120, 1080-l[j]*540, 2, 2)}
}
}
var r=0,h=6
{

Mar 14 2019 5:50 PM UTC

}// 140/140

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Logistics map with some bifurcation, still trying to figure out how to make it look pretty tho

u/artfarnaa

Nice, though I suggest provide a link to background info on what a logistics map is and what bifurcation does. We newbies need just a tad of hand holding.
u/rodrigo.siqueira

#bifurcation

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Jezza

function u(t) {

t||(X=Y=0);x.globalAlpha=.1;for(i=500;i--;)X+=S(Y),Y+=C(X),x.fillRect(X*60,Y*60,1,1);X=++X%33;Y=++Y%19

Mar 14 2019 2:55 AM UTC

}// 102/140

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X+=S(Y);Y+=C(X)

u/Xen

#waitforit
u/DataMeta

I really dig this

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Ath0r

function u(t) {

c.width|=0
for(i=w=1920;i--;)x.fillRect(i,540+300*S(i*0.0065),2,2)
a=t*9
b=w/a
for(i=0;i<a;i++)x.fillRect(i*b,540,b,300*S((i+0.5)*b*0.0065))

Mar 11 2019 5:31 PM UTC

}// 140/140

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Sine integration #sine #integration #maths

u/Jezza

∫sin(x) from 0 to 2π = 0 :) :) :)

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danny@hille.dk

remix of d/12707 by u/rsrsrs

function u(t) {

for(c.width=i=200;i--;x.rect(C(i*t/2),S(i*t/2),i,i),x.rotate(t/1e4));x.fill('evenodd')

Mar 9 2019 5:34 PM UTC

}// 86/140

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morier intended...

u/Jezza

#waitforit

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LimeLaser

function u(t) {

r=Math.random
p=t?p.map(([u,v,i,j]=[100*r()+910,100*r()+490,0,0])=>[u+i/4,v+j/4,i+2*r()-1,j+2*r()-1,x.fillRect(u,v,1,1)]):[...Array(9999)]

Mar 9 2019 7:37 AM UTC

}// 138/140

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Pupil Dilation (or Pandora's Box)

u/Xen

love it!
u/tomxor

Scary !
u/joeytwiddle

#virus

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rsrsrs

remix of d/12683 by u/pavel

function u(t) {

for(c.width=i=512;i-=1/8;x.fillRect(16*(X*2+Y+16),16*(X/2-Y+Z+9),6,9))X=i%8-4,Y=i/64-4,Z=S((X*X+Y*Y)/3+t),x.fillStyle=`hsl(0 0% ${-Z*100}%`

Mar 9 2019 2:03 AM UTC

}// 139/140

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trying out monochrome remixing

u/pavel

It's shorter to use R for monochrome like R(a=-Z*255,a,a)
u/rsrsrs

cool tip!! thanks u/pavel!!

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pavel

remix of d/1112 by u/sigveseb

function u(t) {

for(let w=c.width=127,i=9086,a,b,n,B;a=i&w,b=i--/w;x.fillRect(a,b,1,1/(t+a/n&1^b/n)))n=b-20,B=(w*S(t*9+n/9)+(a-40)**2+n*n)/1e3,n*=B>1||C(B)

Mar 7 2019 8:31 PM UTC

}// 139/140

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#improved performance

Show more comments…
u/pavel

Original runs at 6fps on my machines this runs at 60fps. I lowered the resolution by a quarter (4x perf) and golfed 13 chars to let me declare all vars locally (2x perf).
u/tomxor

wow! this is a massive perf improvement, the original was impressive but I couldn't really see it realtime. Nice one :)
u/katkip

how
u/nender

Wow! This is amazing!
u/sigveseb

Nice!
u/f8f82804

#raytrace #d3 #pbr
u/Cloud

Cool!!!

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