Dweets awesomed by u/Bugsy

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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Exquisite

function u(t) {

r=1080;d=960;c.width=2*d;for(i=0;i<999;i++){x.fillStyle=R(i%300,i%255,i%320);x.fillRect(d+300*S(i+t),r/2+300*S(i)+T(t-i),10,10);}

Dec 27 2017 2:37 AM UTC

}// 129/140

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u/netule

wonderful
u/Exquisite

Thanks :)
u/webworker

Which way is it turning? :D
u/mrremix

^ whoa yea
u/hoppla1232

Help me polarize, help polarize
u/BirdsTweetCodersDweet

#whichwayround #inorout
u/geb

#background

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snail

function u(t) {

x.transform(540,0,0,540,(c.width=1920)/2,540);
for(i=-t,n=20;n--;i+=t/8)
x.lineTo(C(i), S(i));
x.fill("evenodd");

Dec 26 2017 10:19 PM UTC

}// 113/140

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u/sigveseb

starts of basic then gets pretty cool
u/lionleaf

It gets cooler and cooler the longer you wait!
u/vain

i love it

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New_Core

remix of d/3611 by u/cantelope

function u(t) {

x.fillRect(0,0,2e3,2e3)
for(i=800;i--;)x.fillStyle=R(i,i%255,0,1-255/290),x.fillRect(960+i*S(b=i/.019004+S(t-i/300)),540+i*C(b),a=60-i/14,a)

Dec 10 2017 9:49 PM UTC

}// 140/140

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I liked it so had to do my own

u/New_Core

#floppy

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nystrand

function u(t) {

with(x)for(translate(t?S(t):m=993,t?0:540),i=m;i--;fillRect(-m,i+z,3e3,8+z/22))fillStyle=R(z=m/((i*i-t*9)%m),z*3,rotate(-T+(T=i+S(t/9))),.3)

Sep 1 2017 10:41 PM UTC

}// 140/140

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u/Xen

reminds me of spiderman intro, nice one!
u/cantelope

whaaaaaa
u/sigveseb

Really cool
u/magna

Wow!
u/joeytwiddle

Great!
u/iverjo

Wow!
u/Xen

had to have a play, done remix :)
u/alien

Can some one explain what the with(x) is doing ? please :)
u/lionleaf

Wow! That looks amazing. Love what looks like a white cube that vanishes in the beginning too.
u/nystrand

@alien: with(x) puts x in the scope so that you don't have to write the "x." part of x.fillRect, x.translate etc. So, it only saves bytes if you have more than 3 functions in x you want to call.
u/N0va

Very nice!
u/joeytwiddle

Cyber Fibers
u/katkip

wait wot
u/marc8

Really 3D on a large screen

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nystrand

function u(t) {

for(i=c.width+=0;i--;x.fillRect(a*w+1e3,b*w+540,m=w/9-9,m))[a,b,z,w=(z+9+T(t))*19]=t?x[i/3|0]:[S(i),C(i),6*i%8-3],x[i/3|0]=[b+a/77,z,a-b/77]

Aug 19 2017 1:34 PM UTC

}// 140/140

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u/iverjo

Respect!
u/joeytwiddle

Wow!
u/cantelope

unreal!
u/n0va

Impressive!
u/FireFly

This one is really cool! Keep it up! :)
u/p01

👍
u/donbright

oh man!!!
u/nystrand

thanks for all the nice comments!
u/13thptr

#d3 #perspective

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FireFly

remix of d/3005 by u/FireFly

function u(t) {

for(i=5e3;Z=(i--%4>1)+i/128;i%4||x.beginPath(x.fill()))X=i%128+2>>2,x.fillStyle=R(Y=S(X*X/32+Z*Z/32-X-Z-t*6)*80+99),x.lineTo(X*60,Z*35-Y)

Aug 3 2017 9:03 PM UTC

}// 137/140

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Ripples! With proper quads instead. Add +Z*X-Z*16 after X*60 for perspective projection too (brings it up to 146)

u/FireFly

Another byte can be saved with with(x), but this causes a fair bit of slowdown for me. Thanks for some golfing tips from qfox and others on the jsgolf slack :)
u/cantelope

can't stop watching. def in my top 10 favs
u/iverjo

Very impressive!

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nystrand

function u(t) {

with(x)for(q=t?5e3:translate(1e3,b=540),i=b*t%q;i>0;fillRect(c=i/5-q/2,c,T(t&i/t^b)*b+q,q),q=.2)fillStyle=R(a=i--/9-q,rotate(b*t&i),a+b,.1)

May 25 2017 10:00 PM UTC

}// 139/140

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u/magna

Super cool!
u/lionleaf

Amazing!
u/MrM@_S

disco

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nystrand

function u(t) {

p=(a,b,d,w=1)=>d>3?x.fillRect(a-w,b-w,d*w,d*w)&p(a,b,d-5)&p(a+b*C(t+d),b+a*S(d)/8,d-4):x.fillStyle=R(d*88,d*a/9,50+d*99,.3);p(a=650,a,60,a)

Mar 29 2017 8:25 PM UTC

}// 139/140

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u/cantelope

incredible!
u/magna

So pretty!
u/nonce

wow
u/sfz

holy shnikes!
u/donbright

great colors
u/iverjo

#galaxy
u/vain

incredible code and fx. the source is to cryptic for me. XD

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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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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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