Dweets awesomed by u/MAxSaL

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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alice-mx

function u(t) {

q=100
z=540
for(i=0;i<q;i++) {x.beginPath()
x.fillStyle=R(S(t)*q+q,C(i)*q+q,z,1)
x.arc(C(t/i*q)*(i*15)+z,S(t/i*q)*(i*15)+z,i,0,7)
x.fill()}

Oct 24 2018 4:48 AM UTC

}// 139/140

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Xen

remix of d/10291 by u/Xen

function u(t) {

for(c.width|=i=199,x.translate(Z=960,540);i--;x.rotate(2*t/i+(2*t|0)))x.lineTo(i*(3+C(t/3)),0)
x.fill("evenodd")

Oct 23 2018 10:54 PM UTC

}// 112/140

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yonatan

function u(t) {

s=c.style;s.backgroundBlendMode='lighten';for(b=[i=20];i--;)b[i]=`radial-gradient(at ${50+S(t+i)*50}%${i*5}%,tan,#210 25%)`;s.background=b

Oct 23 2018 7:51 PM UTC

}// 138/140

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More Worley noise - via https://codepen.io/supah/pen/oaEZqg

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u/veubeke

Amazeballs!
u/aleamb

amazing!!
u/anotherkitten

this feels gross but i like it
u/lionleaf

#organic #voronoi #cell #squishy
u/katkip

genius
u/joeytwiddle

Like bacteria in rush hour. I agree with what anotherkitten said.

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heyitsguay

remix of d/10596 by u/heyitsguay

function u(t) {

t*=t
h=499
for(i=h;i--;)y=h+(t*S(i/t)|(t/=-1))*9,z=y>h,x.fillStyle=R(j=240-i+10*C(t),j/(1.5-.2*z),j/1.1*(S(t)+.5*z)),x.fillRect(i*9,y,9,9)

Oct 22 2018 2:36 AM UTC

}// 138/140

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Coastal sunset

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ersagun

function u(t) {

w=c.width=500
for(i=98;i--;)for(j=55;A=i-49,B=j-28,j--;)x.fillStyle=R((A*A+(B-S(t*2)*20)**2)*(B*B+(A-C(t)*40)**2)/w),x.fillRect(5*i,5*j,5,5)

Oct 21 2018 2:26 PM UTC

}// 140/140

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@veubeke helped trim 2 characters.

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pavel

remix of d/10485 by u/joeytwiddle

function u(t) {

for(z=42;j=z-->>1;x.fillRect(960+S(k)*15-w/2,540+C(k)*15+w/2-r,w,2*r-w))k=7*t-j/2,x.fillStyle=`hsl(${15*k},33%,${7*j}%)`,r=50*j,w=r*(.5+z%2)

Oct 20 2018 8:43 PM UTC

}// 140/140

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Fixed the plus shape in the back and added color cycling

u/pavel

Check it out in fullscreen

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tomxor

function u(t) {

x.fillRect(0,0,i=2e3,i)
for(t+=160;p=i&1,m=t/C(t/i)+p*(t/2+i%t),i--;)x.clearRect(
960+m*S(n=t/9+i*i)*C(!p*i/t),
540+m*C(n+p*2),s=3-C(n)*3,s)

Oct 17 2018 8:45 PM UTC

}// 140/140

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#space #planet #saturn

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u/joeytwiddle

Wow, beautiful! I am blown away. #dots #lighting #shading
u/lionleaf

Wow! That's amazing
u/magna

WOW!
u/sigveseb

no way!
u/yonatan

beautiful!
u/jellyedwards

That's incredible, well done!
u/jellyedwards

If you change this bit too use t it's like Saturn uses its ring as a hula hoop: 540+m*C(n+p*t)
u/katkip

woow... gj bro
u/keithclark

Nice!!!
u/aleamb

wow! superb!
u/iverjo

That's pretty rad
u/rnbw

my mind is officially boggled o_o
u/Purpzie

This is absolutely beautiful.
u/tomxor

Thanks for all the kind comments :) for those interested: the key is in the parity bit p=i&1 this allowed me to combine two different but similar functions by multiplying parts in an out on each iteration. You should be able to pull the two apart into something more intelligible.
u/magna

@tomxor are you on Twitter as @tomxor by any chance?
u/tomxor

I am not, nor am I on any other social network... unless you consider Github one :P but a different pseudonym..
u/jylikangas

Beautiful dweet!
u/aleamb

The Cosmos is all that is, or ever was, or ever will be. The contemplation of the this Cosmos stir us.
u/Renaud___

so Beautiful
u/ivylab

This is absolute badass
u/vain

OMG! This part blew me away!
u/jdspugh

Well done!

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ms.roboto

function u(t) {

x.lineWidth=4
c.onclick=e=>S=[e.clientX*3.4,e.clientY*3.4,0,0,6.3]
S[2]<2000&&(x.beginPath(),S[2]+=9,x.arc(...S),x.stroke())

Oct 16 2018 10:54 AM UTC

}// 124/140

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Click - Concentric circles

u/magna

#interactive
u/katkip

I love it.

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MAxSaL

function u(t) {

c.style.bg=R();for(i=0;i<20;i++){x.fillStyle=R(C(t*i)*255,T(t)*255,S(t*i)*255);x.fillRect(i+T(C(t))*t*5+i*100,500+C(t)*i,50,C(t)*500+t*10)}

Oct 2 2018 7:25 PM UTC

}// 139/140

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Hmm... It locked a bit different when I made it. It seems, I cannot use c.style.bg

u/donbright

still got a nice rhythym

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E-Mouse

remix of d/10186 by u/E-Mouse

function u(t) {

x.beginPath()
c.width|=0
x.stroke()
for(i=500;--i;)
x.lineTo(C(k=i-t)*900+900,T(k)*400+500)
x.fill("evenodd")

Oct 2 2018 6:14 PM UTC

}// 109/140

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u/donbright

interesting

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