Dweets awesomed by u/SpecialAgent

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: #Food

show FPS hide FPS share 2 remixes fullscreen

lionleaf

remix of d/431 by u/lionleaf

function u(t) {

c.width=2e3;v='Avatars from gravatar!';for(i=v.length;i--;)x.font=130+S(t*5)*30+'px Arial',x.fillText(v[i],i*89,540+S(t*9+i)*20)

Feb 28 2017 12:06 AM UTC

}// 128/140

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

Avatars have been added! They are fetched from gravatar.com based on your email, so register there to get one. Thanks to u/sigveseb for the implementation :)

u/lionleaf

#feature

show FPS hide FPS share fullscreen

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

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

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

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 1 remix fullscreen

SpecialAgent

remix of d/1482 by u/SpecialAgent

function u(t) {

w=200,c.width=w,x.C=x.C||x.getImageData(0,0,w,w)
for(i=w*w*3;i--;)x.C.data[i]=(i*i*(t+3000)*1e-7)%64;x.putImageData(x.C,0,0)

Feb 27 2017 9:55 AM UTC

}// 124/140

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

show FPS hide FPS share fullscreen

SpecialAgent

remix of d/1482 by u/SpecialAgent

function u(t) {

w=200,c.width=w,x.C=x.C||x.getImageData(0,0,w,w)
for(i=w*w*3;i--;)x.C.data[i]=(i*i*(t+3000)*1e-7)%255;x.putImageData(x.C,0,0)

Feb 27 2017 9:55 AM UTC

}// 125/140

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

show FPS hide FPS share 2 remixes fullscreen

SpecialAgent

function u(t) {

w=200,c.width=w,x.C=x.C||x.getImageData(0,0,w,w),x.Q=x.Q||.5;x.Q+=1e-5
for(i=w*w*3;i--;)x.C.data[i]=255*S(t+i*x.Q);x.putImageData(x.C,0,0)

Feb 27 2017 6:09 AM UTC

}// 138/140

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

show FPS hide FPS share fullscreen

hamptonio

remix of d/123 by u/icecuber

function u(t) {

t?i++:i=0;for(j=1e3;j--;){a=b=0;k=256;for(;k--&&a*a+b*b<4;)c=a*a-b*b+i/1e4,b=2*a*b+j/1e4+.6,a=c;x.fillRect(i,j,1,S(k))}

Feb 26 2017 9:48 PM UTC

}// 119/140

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

u/iverjo

Worth the wait
u/hamptonio

Yeah its pretty damn slow.
u/KHymatim

Mmmmm
u/iverjo

#fractal

show FPS hide FPS share fullscreen

SpecialAgent

function u(t) {

w=960,h=540,a=w+S(t*t)*99,b=h+C(t*t)*99
x.fillStyle=R(S(t)*255,0,128+C(t)*128)
x.fillRect(a,b,9,9)
x.drawImage(c,S(t)-2,C(t)-2,1924,1084)

Feb 26 2017 7:37 PM UTC

}// 137/140

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

give it a minute to warm up :)

u/donbright

wow.. smooth and mysterious

show FPS hide FPS share fullscreen

khalkeus

function u(t) {

w=960;h=500;z=t%(w*2)*999;for(var i=0;i<h;i++){x.fillStyle=R(S(z)*255,S(z*9)*255,C(z*9)*255);x.fillRect(C(z)*w*2,S(i*z)*h*5,9,9)}

Feb 26 2017 7:08 PM UTC

}// 129/140

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

u/iverjo

+1 for the novelty

show FPS hide FPS share 1 remix fullscreen

tbroadley

remix of d/1429 by u/tbroadley

function u(t) {

w=c.width=99;h=c.height=56;for(i=0;i++<h;)for(j=0;j++<w;)f=(k,d)=>99*S(t+k/d)+155,x.fillStyle=R(f(w,i),f(h,j),f(j,i)),x.fillRect(j,i,1,1)

Feb 26 2017 6:52 PM UTC

}// 137/140

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

Show more comments…
u/marsch8

fdjak
u/marsch8

whoooops! Didn't mean to write that. Cool dweet, though!
u/KHymatim

fdjak
u/magna

fdjak
u/unframework

fdjak
u/tbroadley

https://www.dwitter.net/d/1429
u/joeytwiddle

#fdjak #colors

dwitter.net | SpecialAgent (3522)