Dweets awesomed by u/saon

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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rodrigo.siqueira

remix of d/12434 by u/katkip

function u(t) {

t||(a=b=0)
for(i=2e3;i--;)x.fillRect(960+b*C(a),540+b*S(a),1,1),a+=1.8*C(2.6*a)+C(t/4+.009),b+=.002

Feb 20 2019 9:24 PM UTC

}// 99/140

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The Flower of Bifurcation #bifurcation

u/katkip

this is #cute #math

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magna

remix of d/12417 by u/DataMeta

function u(t) {

for(i=1e3;i--;)x.fillRect(i*2,t*99,r=t+S(i*333)*C(i*777)<8&&6*Math.random(),r)

Feb 20 2019 6:39 AM UTC

}// 78/140

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Starlit sky on alien planet

u/DataMeta

Ooh, nice
u/katkip

Haha, nice idea
u/rep_movsd

#underrated

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katkip

remix of d/12407 by u/katkip

function u(t) {

x.globalAlpha=.02;x.fillRect(0,0,2e3,2e3);t||(X=10,Y=540);for(i=999;i--;){X+=5,Y+=C(X*Y+t)*X/99,x.clearRect(X,Y,5,X/99);if(X>1920)X=9,Y=540}

Feb 18 2019 2:28 PM UTC

}// 140/140

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katkip

function u(t) {

x.globalAlpha=.02;x.fillRect(0,0,2e3,2e3);t||(X=10,Y=540);for(i=999;i--;){X+=5,Y+=C(X*t+t)*9,x.clearRect(X,Y,5,X/99);if(X>1920)X=9,Y=540}

Feb 18 2019 2:28 PM UTC

}// 137/140

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pavel

remix of d/12355 by u/cantelope

function u(t) {

for(i=c.width|=h=355/226,w=960;Y=w-i--**h%w*2;x.fillRect(w+S(i+t)*w*r/z,540+Y/z,s=99/z/z,s))r=(Y*Y<8e5||Y%1)/S(i%h+h/2),z=4-S(t)-r*C(i+t)

Feb 14 2019 11:21 PM UTC

}// 137/140

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#uncompressed

Show more comments…
u/pavel

The base code draws a tube. 1/S(i%h+h/2) radius makes the tube have a square cross section.
u/pavel

(Y*Y<8e5||Y%1) randomizes the radius between 0 and 1 near top and bottom.
u/pavel

Err, between -1 and 1, and this makes the top and bottom panels.
u/cantelope

I see some gathering of points in the middle of the top and bottom panels, but other than that, a faithful reproduction. kudos!
u/pavel

I use polar coordinates, even though the radius is uniformly random that results in more dots near the middle :/
u/iverjo

#cube #d3

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DataMeta

remix of d/12311 by u/robbyg

function u(t) {

for(c.width|=i=96;i--;)
x.lineTo(960+S(4.02*i+t)*768*S(t-i*4),540+C(i+t)*540*S(i*4))
x.fill('evenodd')

Feb 14 2019 3:06 AM UTC

}// 102/140

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anotherkitten

function u(t) {

x.fillStyle=R(a=16+S(t/5)*9,3,30-a,.03)
x.fillRect(0,0,2e3,2e3)
for(i=900;i--;x.clearRect(960+S(i)*(j%90)*20,540+C(i)*(j%90)*30,9,9))j=i+t*t

Feb 13 2019 11:20 PM UTC

}// 140/140

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some sexy spirals in this #waitforit

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anotherkitten

function u(t) {

for(c.width|=i=128;i--;x.fill(p=new Path2D,p.arc(i*16,b,Math.abs(S(i/9+t/2)*40),0,8)))x.fillStyle=`hsl(${b=620+C(i/2-t)*90} 70% 40%`

Feb 13 2019 3:36 PM UTC

}// 132/140

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geb

remix of d/12304 by u/pavel

function u(t) {

for(c.width|=i=20;i--;x.rect(~-r,~-r,2*r,2*r))r=(i-3*t%2)*55,r*=r>0,x.setTransform(1,~0,1,1,0,555),x.rotate(2**-r);x.fill('evenodd')

Feb 12 2019 1:27 PM UTC

}// 132/140

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23_Skidoo

remix of d/12292 by u/23_Skidoo

function u(t) {

for(s=24,i=4e3;i--;f=(C(X)*S(Y/180))-t,x.fillStyle=`hsla(${S(i/s)*180} 66%${(50+S(f)*45)*S(i*i/s-t)}%`)x.fillRect(X=i%82*s,Y=~~(i/82)*s,s,s)

Feb 12 2019 1:53 AM UTC

}// 140/140

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