Dweets awesomed by u/rafroller

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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erin

remix of d/23273 by u/pavel

function u(t) {

c.style.filter=`blur(2px)contrast(99`
for(p=710,0,i=c.width|=f=g=>99*g(i/5*p)+(134+15*C(i))*g(i/6+t);i--;)x.fillRect(p+f(C),p+f(S),9,9)

Jul 3 2021 5:09 AM UTC

}// 135/140

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otherworldly flower

u/aleamb

#organic #flower

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taupelink

remix of d/20630 by u/taupelink

function u(t) {

r=Math.random;for(i=k=214;i--;x.fillRect(k*X,k*Y,i/t,i/t))X=r(Y=r()*5)*9,h=k*S(S(S(C(p=Y*S(q=X%3*2-2)-2+Y%1.5)))),x.fillStyle=R(h*p,h*q,2*h)

Nov 17 2020 1:17 AM UTC

}// 140/140

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d/20654

u/joeytwiddle

Entrance to sietch as perceived by an insect with compound eyes
u/tomxor

Nice description, (and dweet) :)

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danny@hille.dk

remix of d/20618 by u/danny@hille.dk

function u(t) {

for(c.width=433,p=1;p++<6;)for(i=400;i--;)x.fillStyle=`hsla(${p*t*5},99%,50%,.4`,x.fillRect(i,m=C(i/(9*p+96)+t)*p*S(+p+S(i/66))*9+57,1,m)

Nov 16 2020 9:55 PM UTC

}// 137/140

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u/ciaccodavide

Smooth!

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rodrigo.siqueira

remix of d/20620 by u/dnmc

function u(t) {

c.width|=0
for(var q=0;q<120;q++)for(var w=0;w<110;w++)
if((V=q|w+t*140)%9)x.fillRect(960+q*(w/9)-w*7,50+w*9,7,9)

Nov 16 2020 7:49 PM UTC

}// 113/140

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Fastpinski triangle flow #Sierpinski

u/danny@hille.dk

Nice
u/tomxor

Feels like some kind of alien pyramid... ok yeah i've been watching too much startgate

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rafroller

remix of d/19547 by u/tomxor

function u(t) {

for(c.width=w=127,i=8e3;i--;t?p&&p<8&T[r=t&8?i-w-r%3:i+w+r%3]<7&&--T[i]&++T[r]:T[i]=r%9)
p=T[i],x.fillRect(X=i&w,Y=i>>5,1,p/9),r=i*t+Y/3&X/3

Aug 25 2020 12:53 PM UTC

}// 140/140

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blbllb test

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taupelink

remix of d/19749 by u/taupelink

function u(t) {

r=Math.random;for(i=1e3;i--;x.strokeRect((X-S(Y))*240,(Y-C(X))*90,24/t,96/t))X=r(Y=r()*12)*8,x.strokeStyle='#'+'2468ABCDEF'.substr(X*Y&7,3)

Aug 24 2020 9:08 PM UTC

}// 139/140

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d/19771

u/tomxor

#ice We are doing the opposite :P
u/taupelink

So we are! If d/19772 ever collided with d/19771, we'd get a lot of steam! ;-)
u/Xen

love this

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taupelink

remix of d/19765 by u/taupelink

function u(t) {

f=X=>T(X*X)>1?1/S(X):a/f(X+b);for(i=1440;i--;x.fillRect(a*120,b*120,f(q=S(a)+C(b))>f(a*a+b*b),f(q*q)<q))a=i/90+(r=Math.random)(),b=i%8.9+r()

Aug 24 2020 12:26 PM UTC

}// 140/140

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d/19766

u/tomxor

#waitforit Looks quite a lot like wooden grain

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katkip

remix of d/19759 by u/katkip

function u(t) {

eval(unescape(escape`𬠽𣑡𭁨𛡲𨑮𩁯𫐻𩠽𚁘𛁙𛁮🐹𞐩🐾𦀪𦀫𦐪𦐾𜑼𯁮🀰🱮𚠹𞡦𚁘𚡙𚠲𚰮𜰹𛁘𚡘𛑙𚡙𛐮𜰬𫠭𜐩𞱦𫱲𚁩🐲𞐹𞐻𪐭𛐻𚑘👲𚁙👲𚀩𚠵𜀰𚐪𝐰𜀬𮀮𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀤𮱦𚁘𛰲𝐰𛐱𛁙𛰲𝐰𛐱𚑽𛀹𞐥𛀵𜀥𚑠𛁸𛡦𪑬𫁒𩑣𭀨𦀪𜠬𦐪𜠬𜠬𜠩`.replace(/u../g,``)))

Aug 23 2020 9:47 AM UTC

}// 134/140

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#waitforit I just graph a random recursive function until a beautiful #fractal is plotted

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tomxor

remix of d/19550 by u/tomxor

function u(t) {

for(w=c.width&=i=8320;i--;u[i]=t?p<w?r%.7*(p+u[i-w]+u[i-w+1])&w-1:p:(~r-14&16)<<r*.6)p=u[i],x.fillRect(i%w,Y=68-i/w,1,p**.4/7-Y/w),r=i*t^i&Y

Aug 19 2020 11:53 PM UTC

}// 140/140

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#castle #fire

Show more comments…
u/tomxor

Took some hints from d/11257 for the fire, but made it more minimal. Thanks to u/KilledByAPixel for the c.width&= trick that allowed to fit some nicer gradient and fire effect.
u/jellyedwards

That's incredible! How does the c.width&= trick work?
u/KilledByAPixel

c.width is 1920, 1920 & 8320 is 128, this way you don't need to write 128 for the width
u/tomxor

This is a bit verbose, but I found it easier to understand in binary: 1920 == 0b0000011110000000; 8320 == (8192 | 128); 8320 == 0b0010000010000000; (1920 & 8320) == 0b0000000010000000. In other words i needs to be roughly 8e3 to fill the screen, 8192 (the 14th bit) is not in 1920 so we can use it without affecting w. w needs to be quite small, 128 (the 8th bit) is the lowest bit available in 1920, which is why it's produced with AND.
u/magna

This is nuts.
u/magna

Please do a write-up on this Dweet.
u/jellyedwards

Thanks for the explanation
u/aleamb

absolutly amazing
u/DataMeta

+1 to magna's request
u/joeytwiddle

Pretty great!
u/13thptr

What u/magna said.
u/Xen

Sexy business right here
u/tomxor

Ok why not, I will do writeup, but need to make blog first :P I will post here and discord when done.

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rafroller

remix of d/19035 by u/Annastasia

function u(t) {

(F=(X,Y,L)=>{x.fillStyle=R(C=L*32,C,C);x.beginPath();x.arc(X,500,Y,0,2*Math.PI);x.fill();L>1&&F(X-Y/t*9,Y,L-1)+F(X+Y/2,Y/2,L-1)})(950,950,8)

Jun 4 2020 6:31 PM UTC

}// 140/140

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That's a big tower

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