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

Please log in (or register) to post a dweet (copy-paste the code somewhere safe to save it meanwhile)


    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

show FPS hide FPS share fullscreen

unwiredben

function u(t) {

x.fillStyle=R(0,255*S(t),0,.5)
x.font=(t*60)%600+"px sans"
x.fillText("hello, world",0,800+50*C(t))

May 10 2017 3:30 PM UTC

}// 99/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

u/lionleaf

Hello, unwiredben :)

show FPS hide FPS share 1 remix fullscreen

magna

remix of d/1480 by u/magna

function u(t) {

c.width|=0
x.font='50px monospace';
(u+'')
.slice(0,t*3+S(t)*5)
.concat(t*2&1?'|':'')
.split('\n')
.forEach((s,i)=>x.fillText(s,0,++i*50))

Apr 18 2017 1:55 AM UTC

}// 138/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Pair programming nightmare

Show more comments…
u/joeytwiddle

that title made me Lol :D
u/sigveseb

:D
u/Jenky

That's a really clever illusion, love it
u/magna

Heh, thanks! Brought it down to 123 chars in hopes of adding occasional mistakes like skipped characters / typos etc., but couldn't immediately find a way. In case anyone wants to give it a shot: https://www.dwitter.net/d/2522
u/donbright

:o
u/Polyducks

Could you make a random function to skip odd spaces?
u/magna

It has to be a deterministic PRNG so that the places that are skipped are persistent. Otherwise, it would just look like a random flipping of characters. I thought about it, but couldn't immediately find a short solution.
u/Polyducks

That's a great point. Dwitter is such a mind twister!
u/highfestiva

Groovy baby!
u/magna

#quine
u/joeytwiddle

#funny

show FPS hide FPS share fullscreen

hypothete

remix of d/2091 by u/hypothete

function u(t) {

e=144;d=new ImageData(w=c.width=255,e);
for(i=w*e;i--;){
c=(((i%w)-w/2)**2+((i/w)-e/2)**2)%w;
d.data.set([c],i*4+3)}
x.putImageData(d,0,0)

Mar 13 2017 6:28 AM UTC

}// 138/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

u/donbright

seems nice and fast for animations.. e=144;d=new ImageData(w=c.width=255,e); for(i=w*e;i--;){ c=S(t)*(i%w)**2+C(t)*(i/w)**2; d.data.set([c%w],i*4+3)} x.putImageData(d,0,0)

show FPS hide FPS share 2 remixes fullscreen

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

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

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

show FPS hide FPS share 8 remixes fullscreen

iverjo

remix of d/104 by u/iverjo

function u(t) {

c.width^=0;for(i=9;i<2e3;i+=2)s=3/(9.1-(t+i/99)%9),x.beginPath(),j=i*7+S(i*4+t+S(t)),x.lineWidth=s*s,x.arc(960,540,s*49,j,j+.6),x.stroke()

Feb 24 2017 6:47 PM UTC

}// 138/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Show more comments…
u/SpecialAgent

my hat goes off to you sir!
u/Kalanchoe

That's unbelievable
u/iverjo

Try this one in fullscreen for a more immersive experience
u/Niklas

impressive!
u/donbright

:)
u/aendrew

This is incredible.
u/vonzo

reminds me to Gescom <3
u/hvge

http://www.pouet.net/prod.php?which=3397 ❤️
u/badthai

How did you come up with this?
u/iverjo

@badthai: First I made a classic tunnel effect (like this: https://www.dwitter.net/d/205). Then I made several remixes of it by tweaking parameters. This was one of the results. See also https://www.dwitter.net/d/106
u/iverjo

#tunnel
u/vain

cool segmented tunnel fly

show FPS hide FPS share fullscreen

New_Core

function u(t) {

x.fillStyle=R(b=2e3,b,b,0.1);x.fillRect(0,0,b,b);x.beginPath();for(i=b;i--;)x.lineTo(i/2*C(t)+i*S(g=t+i)+960,i/4*S(t)+i*C(g)+540);x.stroke()

Aug 21 2016 3:10 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Show more comments…
u/iverjo

Dat tunl!
u/New_Core

maybe its a spinning chinese hat from top
u/iverjo

You're right, I can trick my brain into beliving that. Funky! It's like one of those illutions where you see different things based on how you look at it/think of it
u/iverjo

*believing
u/iverjo

Dwitter really needs an "edit comment" feature :P
u/lionleaf

Wow!!
u/giel

Nice!
u/lionleaf

#rotation #hat #in_or_out #lighting
u/joeytwiddle

#shiny
u/vain

Wow! Very nice!

You've reached the end.

dwitter.net | saon (3398)