Dweets awesomed by u/bschwb

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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Feiro

function u(t) {

for(a=6.28,w=960,h=540,c.width|=0;a>0;a-=.02){
	x.moveTo(w+h*C(a),h+h*S(a));
	x.lineTo(w+h*C(a*t),h+h*S(a*t))
}x.stroke();

Feb 14 2018 1:23 PM UTC

}// 122/140

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It began as a quick experiment to generate the Cardioid, bacause of today. Swap 't' for 2 to see it. Happy valentine's day!

u/Feiro

To clarify: Cardioid comes from 'heart' in Greek.
u/aleamb

cool!
u/fons

it is like venus pattern :D
u/Yogeshp3

was my very first dweet :) https://www.dwitter.net/d/5238

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snydej

function u(t) {

for(i=w=2e3;r=--i**4.7;x.fillRect(0,-60,30,90))x.setTransform(s=S(r%4*t),-1,s,1,r%w,(r%99*t)%w),x.fillStyle=`hsl(60,${r%50}%,${30*s**8+60}%`

Feb 14 2018 7:35 AM UTC

}// 140/140

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Show more comments…
u/aleamb

really awesome!
u/snydej

Thanks :)
u/magna

WOW!
u/sigveseb

Rocks so hard :)
u/Apex

My computer is now a jet engine. Looks cool though
u/iverjo

Gold and silver confetti! I like it :)
u/joeytwiddle

#shiny

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akm

remix of d/6670 by u/akm

function u(t) {

c.width|=0
with(x){for(i=140,l=500;i--;lineTo(m,k))n=S(t-i*C(.1*t))*3e2,arc(m=i*18-120,k=-n+l,30,0,6.283,moveTo(m+220,n+l))
fill(stroke())}

Feb 14 2018 3:56 AM UTC

}// 139/140

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aleamb

function u(t) {

c.width=512;b=136;for(y=b;e=0.7*y,f=y-60,f*=f,y-=2;)for(m=b;m--;)d=m-70,z=S(t)*b*Math.exp(-1e-3*(f+d*d)),x.fillRect(m+e+b,-z+e+100,1,1)

Feb 14 2018 1:37 AM UTC

}// 135/140

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Shorter version: c.width=512;b=136;h=60;for(a=b*b;a--;)m=a%b-h,y=a/b-h,e=0.7*y,x.fillRect(m+e+100,S(t)*b*Math.exp(-1e-3*(y*y+m*m))+e+150,1,1)

u/iverjo

Further, 0.7 can be replaced with .7
u/aleamb

#function #p3d
u/aleamb

#math
u/aleamb

#d3

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akm

function u(t) {

c.width|=0;for(i=500;i--;)
x.lineWidth=.7,x.stroke(new Path2D(`M${C(t*i/10)*i+960} ${S(t*i/10)*i+150}l400 400l-400 400l-400-400l400 -400`))

Feb 13 2018 10:16 PM UTC

}// 139/140

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u/Xen

nice

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Feiro

function u(t) {

y=[0]
p=q=720
!t&&(d=(s)=>{
for (a=y.length;a--;y.push((y[a]+1)%4),y[a]%2?q+=y[a]-2:p+=1-y[a])
x.lineTo(p,q)
++s<19&&d(s)
})(0)
x.stroke()

Feb 13 2018 5:02 PM UTC

}// 138/140

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My first dweet! You guys here are awesome! I am glad that I am finally a part of this community!

u/Feiro

By the way the official name of the fractal is Dragon curve
u/Xen

very nice! , i have a few dragon curves if you scroll my page
u/joeytwiddle

Welcome Feiro! Thanks for the dragon, just before Chinese new year!
u/zanella

Welcome! And hooray for fractals!! :)
u/Apex

Love the dragon curve. Nice job, welcome!

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loni_art

remix of d/6894 by u/loni_art

function u(t) {

t?0:x.fillRect(0,0,2e3,2e3);
a=100
for(i=20;i--;x.fillRect(i*a,(5+T(i-t))*a,a/2,a))
x.fillStyle=R(...[0,6,12].map(d=>127*(1+C(d+i*6-t))))

Feb 13 2018 5:01 PM UTC

}// 137/140

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golden mist, thanks to Annan for the golf

u/AnnanFay

👍

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loni_art

function u(t) {

p=(d)=>(127*(1+C(6*d+t)))
c.width|=a=100
for(i=9;i--;x.fillRect((5+i+S(t))*a,(5+C(i-t))*a,a/2,a))
x.fillStyle =   R(p(i),p(.1+i),p(.2+i),1)

Feb 13 2018 3:32 PM UTC

}// 139/140

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procedural palette

u/loni_art

taken from here: http://www.iquilezles.org/www/articles/palet…
u/aleamb

nice
u/joeytwiddle

#colors

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bokoskokos

function u(t) {

x.shadowColor=R(),x.fillStyle='red';for(i=0;i++<99&i<Math.floor(t)*5;x.shadowBlur=99)x.fillRect(980+i*9*S(t+i*13),520+i*8*S(t-i*2),20,20)

Feb 13 2018 10:14 AM UTC

}// 137/140

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u/joeytwiddle

#virus #outbreak

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davidsharp

remix of d/6887 by u/davidsharp

function u(t) {

x.fillRect(0,0,2e3,2e3)
for(i=0;i<64;){n=C(6*S(t)+(++i*3))*130
x.fillStyle=R(n*3,n*2,n*2)
x.fillRect(i*30,400+n,27,300)}

Feb 13 2018 9:57 AM UTC

}// 120/140

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