Dweets awesomed by u/Orez

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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mxfh

remix of d/2327 by u/nonce

function u(t) {

with(x)font='9em s',fillStyle=`hsl(${S(t*8)*180},90%,${t%.3<.1?70:0}%)`,fillText('ᗋ',905,560),drawImage(c,-20,-10,1960+S(t),1100)

Mar 28 2017 12:00 PM UTC

}// 129/140

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Show more comments…
u/sfz

hey, which way to the rave? oooohhhhhhHhhhHhhHhHhhh...
u/sigveseb

cool tunnel :D
u/recursive

Reminds me of clockwork orange.
u/nonce

Love it! did a quick remix with the Russian П in sans-serif just to see what a tunnel might look like: https://www.dwitter.net/d/2332 and got a weird thing happening on the floor. :-)
u/mxfh

Trigrams ☱ and 🀹 Domino tiles work great too. Still if anyone could offer a 1D Noise/Pattern method for pure slit-scan goodness? https://vimeo.com/41747091
u/donbright

Ffonzie's favorite dweet
u/nonce

holly molly: ∩
u/hjroh0315

...So this is what we call a wardrobe malfunction.
u/iverjo

#tunnel
u/mxfh

#trippy #cavern
u/mxfh

#trippy #cavern
u/mxfh

#trippy #cavern

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aemkei

function u(t) {

t||(W=c.width=600);i=W;for(x.fillRect(0,0,W,W);i--;x.fillText(unescape("%u30B"+C%9),i*9,C=~~(t*9+i**3)*12%W))x.fillStyle=R(0,i&&W,0,i?1:.05)

Mar 19 2017 8:18 PM UTC

}// 140/140

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Welcome to the Matrix!

u/iverjo

#matrix
u/danny@hille.dk

More speed longer trails !t?W=c.width=600:i=W;for(x.fillRect(0,0,W,W);i--;x.fillText(unescape("%u30B"+C%9),i*9,C=~~(t*15+i**3)*11%W))x.fillStyle=R(0,i&&W,0,i?1:.03)
u/vain

Beautiful looking remake of the matrix fx

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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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FireFly

function u(t) {

for(c.width|=A=16,i=9e3;i--;(X&8?B&2:"<fnvff<Ā~``x```".charCodeAt((B/A&3)*8+Y%8)>>7-X%8&1)&&x.fillRect(A*X,A*Y,A,A))X=i&127,Y=i>>7,B=X+Y+t*8

Mar 6 2017 8:36 PM UTC

}// 140/140

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00FF. More embedded bitmap fun :)

u/iverjo

Cool!
u/sfz

Going to take a three month sabbatical and figure out how this works.
u/FireFly

Anything in particular that I should explain? It might help to draw the bits of the codepoints in the string literal on a piece of paper, as an 8×15 grid (15 chars, 8 bits per char). Ā is U+100, used to encode 0x00.
u/sfz

Neat trick!

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puckipedia

function u(t) {

c.width+=0,c.onmousemove=d=>a=d.clientX*3;z=(t?z:Array(f=1e3).fill([a=f,0])).map(([w,e],i)=>(x.fillRect(w,i,9,9),[w+e*i/f+e/9,(e*6+a-w)/9]))

Mar 1 2017 7:29 PM UTC

}// 140/140

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Just a wobbly line.

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u/sfz

was staring at this waiting for something to happen longer than I like to admit XD
u/lionleaf

Amazing. Love these interactive ones
u/iverjo

+1 for the physics :D
u/iverjo

mildly entertaining to play with
u/hamptonio

nice!
u/recursive

I learned something new! Destructuring assignment!
u/iverjo

#interactive
u/katkip

#physics

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New_Core

function u(t) {

w=c.width=128;for(i=w*w;i--;)x.fillStyle=R(0,0,0,Math.random()),x.fillRect(i%w,i%(w-1),1,1);x.font='5em A';x.fillText("☠",25,65);

Feb 28 2017 8:16 PM UTC

}// 129/140

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I did one with ImageData but the skull didnt fit in. (it was faster but not fast enough to size it up).

u/sfz

swank!
u/New_Core

#noise

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FireFly

function u(t) {

if (!t) x.translate(X=960, 540)
x.fillStyle = 'hsl('+t*20+',90%,50%)'
x.fillRect(0, 0, X/t, X/t)
x.strokeRect(0, 0, X/t, X/t)
x.rotate(16/t)

Feb 28 2017 5:40 PM UTC

}// 140/140

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Rainbow flower

u/SpecialAgent

so pretty. good use of translation.

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FireFly

function u(t) {

f = t*60|0
X =  f%120, Y = f/120|0
x.fillStyle = "]!{$${!]".charCodeAt(X%16) + 59 >> Y%12& 1? '#345' : '#DEF'
x.fillRect(X*16, Y*16, 16, 16)

Feb 27 2017 6:20 PM UTC

}// 140/140

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u/sigveseb

cool!
u/sfz

wtf is going on here?!
u/FireFly

The string embeds a tiny bitmap which is simply repeated :)
u/5Mixer

This is an awesome idea! I wonder what else you could do with using strings to encode more complex(?) data. Interesting.
u/PiggyClone205

When I read complex, I immediately thought of maybe importing other javascript and cheating a bit.
u/katkip

#invaders

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Renaud___

function u(t) {

l=c.width+=i=0;h=400;for(;++i<200;)for(j=a=(t+C(i))%2;j++<50;)x.fillRect(l*C(i*i)+~~a*(w=a*h-h)*C(j),(~~a?h:a*h)*(C(i)*C(i)+2)+w*S(j)/4,3,3)

Feb 27 2017 12:09 PM UTC

}// 140/140

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Show more comments…
u/HeyJD

This looks amazing. Great job.
u/Renaud___

Thanks :)
u/khalkeus

this is super neat
u/iverjo

Wow!
u/lionleaf

Brilliant!
u/tbroadley

Sweet!
u/donbright

OMG OMG OMG OMG
u/ninerdelta

mind blown
u/sfz

(((does we're not worth bow)))
u/Kalanchoe

That's so beautiful!
u/spbyrne

Incredible
u/Renaud___

wow ... thanks again for all the nice reviews :)
u/punkhaa

mice
u/punkhaa

*nice
u/gormisdomai

I joined this site for this kind of thing
u/lionleaf

On mobile you can tap at different locations for different colors
u/lionleaf

Haha, oops, that comment was for another dweet. This still remains one of my favorites!!
u/sigveseb

golfed to 137: for(l=c.width+=i=0,h=400;++i<200;)for(j=a=(t+C(i))%2;j++<50;)x.fillRect(l*C(i*i)+~~a*(w=a*h-h)*C(j),(~~a?h:a*h)*(C(i)**2+2)+w*S(j)/4,3,3)
u/FireFly

Eternal rains will come… I really like this one, very pretty!
u/zhanglongdream

啊啊啊
u/leonarven

It was really nice to solve the secret of this code! Such simple, but such brilliant! Good job!
u/sb

My favorite
u/arowberry

I love it. Reminds me of my Seattle days.
u/21medals

What does ~~ do? Like in (~~a?h:a*h)
u/Renaud___

It work as a math.floor. actually there is a difference but i dont remember how exactly
u/Renaud___

Dunno what changed in Chrome recently, but now this animation is very very slow :(
u/hollo47

#rain
u/noonat

~ is a bitwise not. It flips all the bits in the number to the opposite. Flipping again (~~) puts the bits back to what they were. It works does something similar to floor because it truncates floats to 32-bit integers as part of the operation. (But unlike floor, ~~-2.1 is -2 instead of -3.)
u/rbong

I did a detailed analysis of this effect in a medium post: https://medium.com/@r.l.bongers/visual-effec…
u/vain

cool raindrop fx

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iverjo

remix of d/89 by u/iverjo

function u(t) {

c.width^=0;for(i=5e3;i--;)p=3*t+S(t/2)*i/3e3+i%4/.637,d=C(p)-S(p),d>0&&x.fillRect(960+199*S(p)+249*S(t/.7+i/6e3),i/4-2,199*d,1/(d+1))

Feb 24 2017 6:50 PM UTC

}// 133/140

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Show more comments…
u/SpecialAgent

nicely done!
u/Kalanchoe

Flawless!
u/donbright

oh wow, the shading!
u/sigveseb

Good twister! Can we add color?
u/iverjo

Color would be awesome :) Feel free to try to add it
u/sigveseb

https://www.dwitter.net/d/1267 red
u/iverjo

Here's a purple version. Had to make some compromises. https://www.dwitter.net/d/1278
u/donbright

i attempted a rainbow version https://www.dwitter.net/d/1282
u/iverjo

#twister
u/vain

nice twister

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