Dweets awesomed by u/tbroadley

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: #Opposites

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recursive

function u(t) {

t||(h=[])
for(n=i=960;--i+n;x.fillRect(i/(1-t/16)+n,(9e3-g*50)/(16-t),9,g))
g=h[i]=h[i]+T(i+t/9)/5-.1||0,x.fillStyle=R(g-t*9,255-g,S(t)*256)

Mar 11 2017 10:12 PM UTC

}// 140/140

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Laser war? Crystal cave?

u/donbright

beautiful

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kchplr

function u(t) {

for(c.width|=0,i=4940;i--;Y=3+i/380|0,x.fillRect(960+(S(X+t+C(i+t)*Y/9)+S(Y+t)*Y/2)*(50+Y*9),540+(C(X)+C(Y+t/9)*Y/3)*(50+Y*9),Y,5))X=i%380

Mar 11 2017 10:05 PM UTC

}// 139/140

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New_Core

function u(t) {

a=c.width|=0;for(b=i=550;i--;)x.fillStyle=R(t%9>8.8?a:0,a,a=80*S(i%50*S(t-i*.1)*.01)+60,1/a*9),x.fillRect(i%50*40,0,40,b+i+a+20*S(t+i*.15))

Mar 10 2017 9:17 AM UTC

}// 139/140

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Heavy rain at sea with lightning.

Show more comments…
u/donbright

:o
u/recursive

Nice
u/iverjo

Wow
u/jsizzle

Wow!
u/sfz

moody!
u/magna

https://www.youtube.com/watch?v=oKKDfynx4ZY
u/New_Core

#water
u/New_Core

#sea #ocean
u/joeytwiddle

My favourite
u/joeytwiddle

#hiddengem #waves #rain

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kchplr

function u(t) {

for(i=99;i--;A=T%6.35,r=50+((T/6.35|0))**1.05*10,r+=C(T*8-r)*r/10,x.fillRect(960+S(A)*r-r/84,540+C(A)*r-r/90,2+r/42,2+r/45))T=t*9+i/99

Mar 10 2017 8:09 AM UTC

}// 134/140

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u/jsizzle

Beautiful
u/stiaje

Seems to require chrome or Firefox 52 due to exponentiation operator :(
u/Xen

77byte Remix #2939
u/FireFly

I love it

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netgrind

function u(t) {

w=960
c.width=w*2
x.beginPath()
x.lineWidth=5
for(i=0;i<6.28;i+=.0628){
p=i+t*.2
x.moveTo(C(p)*w+w,0)
x.lineTo(S(p)*w+w, 1080)
}
x.stroke()

Mar 9 2017 10:13 PM UTC

}// 139/140

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u/donbright

elegant!
u/jsizzle

awesome

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kchplr

function u(t) {

for(c.width|=0,i=3e3;i--;X=S(t+i*.01)*500,D=1-((Y-540)**2+X*X)**.5/400,x.fillRect(960+X*D*1.7,Y+D*(100+S(t)*99),D*D*99,D*20))Y=(t+i<<2)%2e3

Mar 9 2017 6:42 PM UTC

}// 139/140

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u/jsizzle

Wow!
u/recursive

The movement looks like smoke. Very nice.
u/iverjo

Nice!
u/joeytwiddle

#smoke

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recursive

remix of d/1976 by u/recursive

function u(t) {

for(d=256;--d;)for(X=-32;++X<32;x.fillRect(960+X*8e3/d,100+7e4/d-h,120,9))x.fillStyle=R(h=(C(a=d/9+t*6)+C(X/9+a/3))*35,g=h+C(X^d)*6+90,g/.8)

Mar 9 2017 12:33 AM UTC

}// 140/140

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Bluer waves

Show more comments…
u/sfz

Incredible
u/sigveseb

Epic
u/FireFly

This is crazy, great stuff :D
u/iverjo

Best water on dwitter thus far!
u/iverjo

I also tried to achieve this some time ago, but yours is much more convincing
u/iverjo

https://www.dwitter.net/d/65 and https://www.dwitter.net/d/254 and https://www.dwitter.net/d/295 and https://www.dwitter.net/d/366
u/recursive

Your idea gives really great color to the surface. I wonder if it's possible to animate the colors using your idea, and the wave geometry and lighting using mine.
u/magna

(ノಠ益ಠ)ノ彡┻━┻
u/Renaud___

very very nice
u/jsizzle

Seriously amazing. Wow
u/SpecialAgent

Bravo
u/ideokan

i am a web developre, feeling like a dumb monkey in here
u/PiggyClone205

Welcome to the club, ideokan.
u/Godcranberry

This sis amazing, totally my favorite
u/Godcranberry

is* mb fam
u/iverjo

#water
u/hollo47

#ocean
u/katkip

#waves
u/vain

Very nice and lovely wave

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sfz

remix of d/1962 by u/sfz

function u(t) {

w=950
V=t%13+3
for(i=V;i>0;i-=2/w)x.fillStyle=`hsla(${7*t*i},66%,66%,.2)`,x.fillRect(w+w*S(t*i+2*V),w/2+w/2*S(V*i+2*t+3),V,V)

Mar 8 2017 7:22 PM UTC

}// 125/140

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Harmonograph II.2

u/donbright

i like these colors
u/sfz

I call it Mathematician's Plaid

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nystrand

function u(t) {

for(l=c.width=512,a=C(t),b=S(t);l--;x.fillRect((k-a*a*i-b*a*j+b/a)*z+300,(a*i+b*j+a*k)*z+99,d=.2*z/a,d))i=l>>6,j=l>>3&7,k=l%8-4,z=20+b*i-a*j

Mar 8 2017 6:20 PM UTC

}// 140/140

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u/sigveseb

This is good
u/FireFly

Woah, very nice!
u/p01

Ace!
u/donbright

cool 3d
u/Lazy1337

#d3
u/Lazy1337

#cube

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Jenky

function u(t) {

r=210;X=Y=O=20;n=new Date/1e3
b=d=>{x.fillStyle=R(d?0:r);x.fillRect(X,Y,r,r);Y+=X<r*7?0:O+r;X=X<r*7?X+O+r:O}
for(i=2;i<5e9;i*=2)b(n%i>=i/2)

Mar 8 2017 1:17 PM UTC

}// 139/140

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Binary representation of number of seconds passed since 1 Jan 1970

u/donbright

super cool

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