Dweets awesomed by u/Lynx

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: #Opposites

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anotherkitten

remix of d/20280 by u/anotherkitten

function u(t) {

x.beginPath(c.width|=X=Y=Z=0.004)
for(i=2e3;i--;x.lineTo(960+(Z*S(t)+X*C(t))*i*99,540+Y*i*49))X+=Y*Z+Y,Y+=Y*Y-X*X-Z-X,Z+=-Z*Y*X+Y
x.stroke()

Oct 16 2020 10:09 PM UTC

}// 140/140

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mind melter orbit

u/MAxSaL

Damn, Dwitter is on fire! Cool dweet after cool dweet!

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rep_movsd

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁣𛡷𪑤𭁨𯀽𢰽𞐹𛁥🐨𡀬𠠬𠰩🐾𩑬𫁩𬁳𩐨𢰪𞐫𡀪𢰪𛐨𠐥𝠼𜰿𜐺𛐱𚐬𝐴𜀬𡐽𥰭𛐪𢰬𡐭𢰬𜀬𠐫𠠬𠐫𠰬𠠩𛁚🐮𜰬𠐽𚁴𙐽𦠩𞱁🀶𚱴𞱁𚰽𦠬𬱴𬡯𪱥𚀩𚑢𩑧𪑮𤁡𭁨𚁗🐴𚐬𩐨𜐬𦠬𜀬𩐨𜀬𜀬𦠬𨱬𫱳𩑐𨑴𪀨𩐨𜐬𜀬𦠩𛁥𚀰𛁚𛀰𚐬𥰽𝐩𚐩`.replace(/u../g,'')))

Oct 15 2020 11:09 AM UTC

}// 140/140

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#tesseract #torus

u/Xen

Nice!
u/magna

canvas.getContext('4d')
u/jellyedwards

Better than my attempt! https://www.dwitter.net/d/19690

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yonatan

function u(t) {

c.width|=X=Y=0
for(i=3e3;i--;s=i/59+9,x.globalAlpha=i*i/2e7,x.fillRect(960+(X+=C(d))*s/9,540+(Y+=S(d))*s/9,s,s))d=S((t+i)/33+t*9|0)*88

Oct 14 2020 6:28 PM UTC

}// 134/140

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remix of a deleted dweet by u/ntsutae

u/katkip

this is the 2d version of https://js1024.fun/demos/2020/4
u/ntsutae

Perfect, Thanks!
u/sigveseb

cool!

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yonatan

remix of d/10191 by u/yonatan

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪀽𞐹𛁩🐲𩐳𞱩𛐭𞱾𚁱𯁙𚐦𝀦𙠱🀼𚁙🀼𜡼𬐪𜠩𙠳𝐹𝁼𯁸𛡦𪑬𫁒𩑣𭀨𝐰𚱃𚁭𚐪𬠬𭐪𜠲𛑓𚁭𚐪𬠯𜰬𝠬𝐩𚑡👩𛰱𞀬𬠽𚀹𚱃𚁩𚐩𚠶𚡓𚁓𚁵🐳𛑩𛰶𝠶𚐪𚠮𝐩𛁸𛡦𪑬𫁓𭁹𫁥👒𚁧👃𚁴𚐪𤰨𫐽𭀪𜠫𨐩𚠳𝰷𛁧𛰲𚐬𦐽𭐪𜰭𝀬𬐽𨐥𝠮𜰊`.replace(/u../g,'')))

Oct 13 2020 7:23 PM UTC

}// 139/140

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on/off #pumpkin

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rodrigo.siqueira

remix of d/18558 by u/rodrigo.siqueira

function u(t) {

for(i=2e3,f=(X,Y,n=0)=>Y<9?f(X*X-Y*Y-.8,2*X*Y+.2,n+.16):x.fillStyle=`hsl(${i/9},75%,${n*n}%`;i--;x.fillRect(i,t*60,1,999))f(i/480-2,1-t/9)

May 14 2020 4:15 PM UTC

}// 138/140

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Laser color printing #julia set #fractal

u/sigveseb

Very pretty colors!
u/rodrigo.siqueira

This code stems from original u/Pavel's https://www.dwitter.net/d/18323
u/joeytwiddle

Multibeam: x.fillRect(i,t*60,1,999),Math.random()<.94&&(x.fillStyle='#000',x.fillRect(i,t*60+1,1,999))

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rodrigo.siqueira

remix of d/18458 by u/rodrigo.siqueira

function u(t) {

for(X=f=c=>S(S(9*c/d)*t),Y=t/8-1.1,i=2e3;i--;x.fillRect(i,t*60,(1+f(X=i/480-2)*f(Y))*(d/2+Y),3))x.fillStyle=R(C(r=X*X+Y*Y)*125),d=r>1||T(r)

Apr 23 2020 5:58 PM UTC

}// 139/140

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Red Sphere Reflection #raytracing (high resoluton)

Show more comments…
u/Xen

Tf Dude! top dweet right here 😍
u/lionleaf

That's amazing!
u/lionleaf

#glass #sphere
u/stiaje

#witchcraft
u/Ath0r

Impressive, great job!
u/katkip

genius script
u/PoweredByWill

wow. dwitter povray.
u/mole

I am shooketh. This is absolutely incredible.
u/katkip

#slowrender
u/cli

This is great.
u/Nascretis

Actually insane. #witchcraft

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KilledByAPixel

function u(t) {

for(c.width=64,k=2304;k--;x.fillRect(i=k%64,j,1,1))j=k>>6,x.fillStyle=R(v=(S(k**4+t*9)*3955)/(12-j/3)**2.5,v/9,v/99)

Aug 3 2019 7:13 PM UTC

}// 116/140

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Pixel #Fire

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rodrigo.siqueira

function u(t) {

X=Y=0
for(c.width|=i=1e3;i--;){
X=X*C(2*t+Y*2)+Y/4
Y=C(X+Y+X+t/3)-S(i+X+t)/3
x.fillRect(960+X*820,540+Y*400,5,5)
}

Feb 4 2019 2:16 AM UTC

}// 114/140

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Interaction of live attractors

u/katkip

WOWWW #attractor AWESOME
u/donbright

WOAH

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rodrigo.siqueira

remix of d/11965 by u/pavel

function u(t) {

for(x.fillRect(0,0,i=3e3,i);Q=S(--i*i);x.clearRect(960+150*(S(b)*4+S(i+t)*Q),540+150*(C(i*i)-(t%4>2?T(b+t):S(b+t))),4,4))b=i%6+t+(t%2>1?0:i)

Jan 28 2019 2:40 PM UTC

}// 140/140

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Torus, spheres, flow and bubbles

Show more comments…
u/rnbw

now THIS is a demo!
u/katkip

Yeah he win
u/13thptr

woah
u/joeytwiddle

Superb! Golf the end with i*(t%2>1) or i*!(t&1)
u/rodrigo.siqueira

Thanks @joeytwiddle for the golf trick. i*(t&1) also works and it's even shorter. And I found that t%4>2?... can be converted to t&2?... It works as a counter to change the function each 2 seconds.
u/yonatan

Also, since T and S take the same arguments (t%4>2?T(b+t):S(b+t)) can be (t&2?T:S)(b+t)
u/lionleaf

Wow! Now we're talking
u/vain

Wow, three fx in this tiny code? Great!

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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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