New #Mandelbrot dweets

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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rodrigo.siqueira

remix of d/18322 by u/pavel

function u(t) {

for(i=2e3,f=(X,a=0,b=0,n=99)=>a<n?f(X,a*a-b*b+X,2*a*b+t/4-1.1,n-2):x.fillStyle=`hsl(${n*6} 50% ${n}%`;i--;x.fillRect(i,120*t,1,i))f(i/660-2)

Apr 21 2020 4:06 PM UTC

}// 140/140

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Color #mandelbrot set #fractal

u/Xen

smooth!
u/KilledByAPixel

fast!
u/Toby

Beautiful!

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pavel

function u(t) {

for(let i=1920,f=(x,n=420,a=0,b=0)=>a*a+b*b<n?f(x,n-1,a*a-b*b+x,2*a*b+.1133-t/4615):n/420;i--;)x.fillRect(i,180*t,f(i/8e5-.7467),3)

Apr 18 2020 5:59 AM UTC

}// 131/140

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(X=-0.7453, Y=0.1127, R=6.5e-4) section of the #mandelbrot set

u/pavel

This version draws 1x3 pixels to speed up rendering. for(let i=2e3,f=(x,n=420,a=0,b=0)=>a*a+b*b<n?f(x,n-1,a*a-b*b+x,2*a*b+.1133-t/13845):n/420;i--;)x.fillRect(i,60*t,s=f(i/8e5-.7467),s) looks better in fullscreen but is 3x as slow.
u/pavel

let and the automatic scoping of args in f makes this _really_ quick. I can increase the loop to 4e3 iterations and still have 60fps on my machine. Would be interesting to speed this up by rendering multiple rows per frame.
u/katkip

all dweets made by u/pavel are genius
u/Xen

godlike!
u/Qwitter

agreed !!!!

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KilledByAPixel

function u(t) {

for(i=s=540;i;S||x.fillRect(s-A*s,B*s+s,T/26,2))S=S*T--?S*S-C*C+(C=2*S*C+B,A):(C=B=--i/270-1,T=39,A=t/9-2)

Apr 17 2020 11:51 PM UTC

}// 106/140

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Tiny Mandlebrot Set 2.0 #SlowDraw #Fractal #Mandelbrot

u/KilledByAPixel

Faster and smaller then d/18275
u/Xen

wow smooth
u/KilledByAPixel

not sure if possible to make smaller without major quality drop

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KilledByAPixel

remix of d/18279 by u/KilledByAPixel

function u(t) {

for(i=s=540;i;S||x.fillRect(s-A*s,B*s+s,1,2,x.fillStyle=`hsl(${T*T} 99%50%`))S=S*T--?S*S-C*C+(C=2*S*C+B,A):(C=B=--i/270-1,T=29,A=t/9-2)

Apr 16 2020 4:13 AM UTC

}// 135/140

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Mandlebrot Set 2.0 🌈 #SlowDraw #Fractal #Mandelbrot

u/KilledByAPixel

with improved draw speed and colors!
u/KilledByAPixel

https://twitter.com/KilledByAPixel/status/12…

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Xen

remix of d/18279 by u/KilledByAPixel

function u(t) {

for(i=j=99;i;)x.fillRect(t*49,i,!S,S=j--?S*S-C*C+(C=2*S*C+R,T):(C=R=--i/(j=49)-1,T=t-2))

Apr 16 2020 3:19 AM UTC

}// 88/140

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88byte mini #Mandelbrot #Fractal Shoutz 2 u/KilledByAPixel

u/KilledByAPixel

You absolute madman!
u/DataMeta

#hiddengem

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rodrigo.siqueira

function u(t) {

for(i=s=540;i--;x.fillRect(s-A*s,B*s+s,j/150,2))for(j=s,X=A=C((i/29)*T(t))*t-2,Y=B=i/s*2-1;X*j--;)X=X*X-Y*Y+(Y=2*X*Y+B,A)

Apr 16 2020 2:34 AM UTC

}// 121/140

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Tiny Mandelbrot over geometric patterns #Mandelbrot #Fractal

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KilledByAPixel

remix of d/18277 by u/Xen

function u(t) {

for(i=j=s=99;i;x.fillRect(s-T*s,R*s+s,!S,1))S=j--?S*S-C*C+(C=2*S*C+R,T):(C=R=--i/50-1,j=s,T=t/9-2)

Apr 15 2020 11:57 PM UTC

}// 98/140

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Sub 100 byte #Mandelbrot #SlowDraw

u/KilledByAPixel

https://twitter.com/KilledByAPixel/status/12…

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Xen

function u(t) {

for(i=s=640;i--;x.fillRect(s-A*s,B*s+s,j/i,9))for(j=99,X=A=t/9-2,Y=B=i/s*2-1;X*j--;)X=X*X-Y*Y+(Y=2*X*Y+B,A)

Apr 15 2020 10:01 PM UTC

}// 107/140

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slight golf

u/Xen

#SlowDraw #Fractal #Mandelbrot

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rodrigo.siqueira

remix of d/18197 by u/KilledByAPixel

function u(t) {

c.style.filter=`sepia()invert(`
for(Y=X=j=1e4;j--;j%99||(T=Y=S(j)*2,R=X=C(t*j)))Y=Y*Y-X*X+(X=2*X*Y+R,T),x.fillRect(X*450+960,Y*450+700,.5,1)

Apr 15 2020 8:05 PM UTC

}// 140/140

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Lines of #Buddhabrot #mandelbrot #fractal

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KilledByAPixel

function u(t) {

eval(unescape(escape`𩡯𬠨𪐽𜑥𜰬𦠽𝐴𜀻𛐭𪐻𮀮𩡩𫁬𤡥𨱴𚁴🰸𜀰𛐨𠰽𠰪𛐭𥀿𠰪𠰭𤰪𤰫𚁓🐲𚡃𚡓𚱂𛁁𚐺𠐽𬠨𤰽𠠽𬠨𥀽𜑥𜰩𚠴𛐲𚐪𝠭𜰩𚡚𞠰𛁴🱓𚡚𚱚𞠰𛁷👴🰨𮀮𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀤𮱚𚠨𠐪𠐫𠠪𠠩𚠪𛠵𯐬𞐹𙐬𙁻𞐹𛑔𛰱𜱽𙐬𛠵𨀬𜐩𞠲𩐳𛁷𚐩𬠽𣑡𭁨𛡲𨑮𩁯𫐻`.replace(/u../g,'')))

Apr 12 2020 6:13 PM UTC

}// 140/140

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Anti-Buddhabrot 3.0 #Fractal

u/rodrigo.siqueira

Very beautiful colors! Slow but wonderful result. #mandelbrot #art #waitforit #SlowDraw
u/KilledByAPixel

thanks rodrigo ✌️
u/KilledByAPixel

https://twitter.com/KilledByAPixel/status/12…
u/KilledByAPixel

#buddhabrot
u/magna

This is so pretty!

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