New #recursive 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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ciaccodavide

remix of d/21561 by u/ciaccodavide

function u(t) {

c.width|=1
f=(X,Y,s)=>(h=s/2,x.fillRect(X-h,Y-h,s,s),s>3&&(f(X-s*S(t)-s,Y-s,h,f(X+s*C(t),Y+s,h,f(X+s,Y-s,h,f(X-s,Y+s,h))))))
f(960,540,234)

Feb 2 2021 1:58 PM UTC

}// 139/140

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#recursive #sierpinski 3D from squares to triangles

u/geb

so pleasing

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ciaccodavide

remix of d/21560 by u/ciaccodavide

function u(t) {

c.width|=1
f=(X,Y,s)=>(h=s/2,x.fillRect(X-h,Y-h,s,s),s>3&&(f(X-s*S(t),Y-s,h,f(X+s,Y+s,h,f(X+s,Y-s,h,f(X-s,Y+s,h))))))
f(960,540,199+S(t)*99)

Feb 2 2021 1:54 PM UTC

}// 140/140

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#recursive squares to #sierpinski

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ciaccodavide

function u(t) {

c.width|=1
f=(X,Y,s)=>(h=s/2,x.fillRect(X-h,Y-h,s,s),s>3&&(f(X-s,Y-s,h,f(X+s,Y+s,h,f(X+s,Y-s,h,f(X-s,Y+s,h))))))
f(960,540,199+S(t)*99)

Feb 2 2021 1:53 PM UTC

}// 135/140

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#recursive squares

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katkip

function u(t) {

c.width*=1
p=(s,r=1)=>{x.beginPath();for(i=19;i--;)x.arc(960+S(i*2.513)*s,540+C(i*2.513)*s*r,0,0,0);x.stroke();if(s>20)p(s/2.64,-r)}
p(t**8)

Dec 22 2020 6:36 AM UTC

}// 140/140

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#pentagram #recursive

u/pavel

Reminds me of d/11285

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katkip

function u(t) {

c.width*=1;
f=(X,Y,s)=>{if(s>2)x.strokeRect(X-s/2,Y-s/2,s,s),Z=S(t),Q=C(t),f(X+Z*s/4,Y+Q*s/4,s/2),f(X-Z*s/4,Y-Q*s/4,s/2)}
f(960,540,700)

Oct 26 2020 5:09 AM UTC

}// 136/140

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#recursive

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katkip

function u(t) {

eval(unescape(escape`𩠽𚁸𛁹𛁮🐵𚐽🡮🠰🱦𚁦𚁹𛁸𛰲𛁮𛐱𚐪𜠬𮐯𜠭𮀯𜠭𭀪𜠬𫠭𜐩𞡓𚁸𚐻𩡯𬠨𪐽𜠴𜀻𪐭𛐻𚑸𛡦𪑬𫁓𭁹𫁥👒𚁦𚁩𛁴𛀵𚐪𜠵𝐬𩠨𪐬𭀬𝠩𚠲𝐵𚐬𮀮𩡩𫁬𤡥𨱴𚁩𚠸𛀰𛀸𛀸𚐻𮀮𩁲𨑷𢑭𨑧𩐨𨰬𜀬𞀩`.replace(/uD./g,'')));

May 8 2020 5:38 PM UTC

}// 120/140

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f=(x,y,n=5)=>n>0?f(f(y,x/2,n-1)*2,y/2-x/2-t*2,n-1):S(x);for(i=240;i--;)x.fillStyle=R(f(i,t,5)*255,f(i,t,6)*255),x.fillRect(i*8,0,8,8);x.drawImage(c,0,8)

u/DaSpider

#recursive

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taupelink

remix of d/17519 by u/katkip

function u(t) {

f=(x,y)=>C(x)*S(y)<-.3?f(y-2,x-1):S(x/3-2)+C(y*7);for(i=999;i--;)X=(r=Math.random)()*213,Y=r()*122,f(X/7,Y/7)<0?x.fillRect(X*9,Y*9,1,1):t

May 7 2020 12:31 AM UTC

}// 137/140

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remix with circles and black&white effects #recursive #waitforit

u/taupelink

imperfect circles...

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katkip

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪀽𜑥𜰻𩠽𚁸𛁹𛁮🐨𜰪𭁼𜀩𚐽🡮🱦𚁹𛐲𚡓𚁸𛰹𚱴𚐬𮀭𜠪𤰨𮐯𞐫𭀩𛁮𛐱𚐺𚁓𚁸𚐫𤰨𮐩𚐯𝀫𛠵𞱦𫱲𚁪🐶𜰻𪠭𛐻𚑦𫱲𚁩🐱𜐱𞱩𛐭𞰩𮀮𩱬𫱢𨑬𠑬𬁨𨐽𩠨𪐭𝐵𛁪𛐳𜰩𛁸𛡦𪑬𫁒𩑣𭀨𪐪𞐬𪠪𞐬𞐬𞐩`.replace(/uD./g,''))) // HailXaTuring

Apr 18 2020 12:27 PM UTC

}// 140/140

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distorting a pattern via #recursive rule

u/katkip

c.width=1e3;f=(x,y,n=(3*t|0))=>n?f(y-2*S(x/9+t),x-2*S(y/9+t),n-1):(S(x)+S(y))/4+.5;for(j=63;j--;)for(i=111;i--;)x.globalAlpha=f(i-55,j-33),x.fillRect(i*9,j*9,9,9)
u/Xen

love it!

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katkip

function u(t) {

f=(x,y)=>C(x)*S(y)<0?f(y-2,x-1):S(x)+C(y*9);for(i=2999;i--;)X=(r=Math.random)()*213,Y=r()*122,f(X/7,Y/7)<0?x.fillRect(X*9,Y*9,4,4):t

Feb 8 2020 5:23 PM UTC

}// 132/140

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#recursive #waitforit

u/Xen

love it

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rodrigo.siqueira

remix of d/12354 by u/rodrigo.siqueira

function u(t) {

for(a=b=i=2e4;i--;x.fillRect(960+99*a,540+99*b,.1,1))r=Math.random(),[a,b]=r>.5?[S(b)*8,C(a*b+t)*5]:[S(b/3)*5,a/3]
x.fillStyle=R(b*60*(i%3))

Feb 5 2020 12:33 PM UTC

}// 140/140

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Into the abyss of rectangles #recursive

u/DaSpider

Where is the recursion?
u/rodrigo.siqueira

Each [a,b] is defined by the previous state of [a,b], so it's actually iterative.. It's based on IFS (Iterated Function System) with transformations are based on a probability.
u/sigveseb

That shading ends up looking really nice!
u/tomxor

Yeah, really nice texture!
u/lulasz

Looks like pencil drawing 🤔

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