Dweets awesomed by u/bi1yeu

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: #Food

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bi1yeu

function u(t) {

w=1920;r=Math.random;for(i=0;i<2000;i++){T=Math.pow(4,t);x.fillRect(r()*(w+T),r()*(1080+T),r()*4+2,r()*4+2)}T==Infinity?c.width=w:0;

Oct 13 2018 4:57 AM UTC

}// 132/140

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night sky

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arnioxux

function u(t) {

c.width|=0
x.font='900px arial'
i=Math.round(10*t/Math.PI)
x.fillText(
String.fromCodePoint(0x1F600+i%64),
500,
800-20*C(20*t)
)

Oct 13 2018 2:34 AM UTC

}// 128/140

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Smileys

u/f8f82804

#emoji

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Calibas

function u(t) {

c.width^=0
c.style.background='#000'
for(i=50;i--;)   {x.fillRect(100+40*i,5,25,50*i);x.rotate(.1*t);x.fillStyle=R(255, 55+4*i, 255-4*i,)}

Oct 13 2018 1:37 AM UTC

}// 138/140

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yonatan

remix of d/10334 by u/yonatan

function u(t) {

c.width|=c.style.background='radial-gradient(tan,#000'
for(k=4e3;k--;x.fillRect(960+(k%9/4+S(t)-1)*20*$,640+k/9,2.5*$,k>9?.5:-200))$=20+k/81

Oct 12 2018 5:32 PM UTC

}// 140/140

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#default

Show more comments…
u/donbright

WWWWWWWWWWOAH
u/prplz

this is the one
u/iverjo

#shadows
u/sigveseb

YES! SO GOOD!
u/sigveseb

and it's a #default too! :P
u/loni_art

yooooooooooooooooooo!
u/katkip

lol nice
u/aleamb

great!
u/veubeke

<3
u/katkip

64 awesomes! 29/11/2019
u/dull_pixel

#raytracing
u/vain

amazing! Like the added gradient and shadow fx. ++++

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Purpzie

remix of d/4329 by u/retera

function u(t) {

for(c.width|=0,d=720;d--;x.fillRect(C(a=b/8/t+t/r)*s*S(b%8+t)+960,S(a)*s*C(b%8-t)+540,8,8))s=480+C(r=0|d/72,b=d%72)*r*5

Oct 12 2018 4:53 PM UTC

}// 119/140

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Combined 3 for loops into 1, shortening from 140 to 119 characters

u/donbright

awesome

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veubeke

function u(t) {

c.width^=0
for(i=190;i--;)with(x)restore(save(),translate(120*(i/11|0),i%11*120),rotate((1-i%2*2)*S(t-i/100)/2),fillRect(-45,-45,90,90))

Oct 11 2018 6:47 PM UTC

}// 136/140

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Inspired by beesandbombs but had to switch to squares. See https://twitter.com/beesandbombs/status/1050…

u/Xen

i've been watching ;-) amazing work V x
u/vain

what for a great optical illusion

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veubeke

remix of d/10313 by u/veubeke

function u(t) {

c.width^=0
for(Y=11;Y--;)for(X=Y+1;X--;x.fill(new Path2D(`M${_=960+(X*52-Y*26)*s},${$=(Y-6)*46*s+540}L${_-26},${$+45}H${_+26}`)))s=(t%4)**2

Oct 11 2018 3:21 PM UTC

}// 139/140

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u/ryan_cruz

Wow

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ben

function u(t) {

function v(a,b,g,r){if(r>1){x.fillRect(a+=r*S(g),b-=r*C(g),2,2)
v(a,b,g-1+C(t),r*=.7)
v(a,b,g+.5+S(t),r)}}c.width=500
v(250,270,0,80)

Dec 28 2017 9:28 PM UTC

}// 133/140

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Show more comments…
u/Xen

LOVE IT!
u/ben

trying to make a swaying tree but requires too many characters to draw the branches
u/Xen

join the chat and show your code... :-)
u/sigveseb

Very good!
u/itsjustmustafa

recursive functions in under 140, love it!
u/Bendoman

Best thing on here by far.
u/FrankMoren27

awesome
u/iverjo

#recursive
u/lionleaf

#fractals
u/vain

incredible

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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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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/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

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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

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