Dweets awesomed by u/katkip

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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Whimpers

function u(t) {

for(k=i=960;--i;x.fillRect(k+S(i*j)*6+S(m=k*j^k)*r,540+C(m)*r,s=3e5/k*S(j*9),s))j=i/k+t/4,r=1e5/i,x.fillStyle=R(i,i/3)

Mar 6 2020 4:37 PM UTC

}// 118/140

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Lava flowers

u/katkip

wow
u/PoweredByWill

Very cool. This reminds me of part of a demoscene entry called Transgression 2 by MFX.
u/KilledByAPixel

remix of d/15976

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BriSeven

remix of d/17850 by u/Unum

function u(t) {

eval(unescape(escape`挮睩摴株㴱㭰㴳⸱㭸⹳捡汥⠹〬㤰⤻景爨椽㔻椭ⴻ吽琥ㄵ⵰⩩⥸⹦楬汓瑹汥㵒⠰ⰰⰰⰨ吪吾㤿〺⡃⡔⤫ㄩ⼲⤩ⱸ⹦楬汔數琨≥汬潈≛楝ⰶⰹ⤻挮獴祬攮晩汴敲㵠扬畲⠤笭䌨琪㈩⨱ぽ灸⥣潮瑲慳琨㉥㌥⥠`.replace(/u(..)/g,"$1%")))

Mar 6 2020 1:37 AM UTC

}// 136/140

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morphing text. I comprimised on the precision of some constants, so some of the timing will go out of sync after a few runs.

u/katkip

nice

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katkip

function u(t) {

eval(unescape(escape`𭁼𯀨𥀽𦱝𚐻𮀮𩡩𫁬𤱴𮑬𩐽𙰣𜁦𩠵𙰻𮀮𩡩𫁬𤡥𨱴𚀰𛀵𝀰𛀲𩐳𛀲𩐳𚐻𮀮𩡩𫁬𤱴𮑬𩐽𤠨𚐻𩡯𬠨𪐠𫱦𘁔𚑸𛡦𪑬𫁒𩑣𭀨𪐮𮀫👃𚁩𛡡𚐪𞐬𪐮𮐫👓𚁩𛡡𚰽𚁩𛡹𛐵𝀰𚐪𚠲🀱𙠦𪐮𭀥𜠼𜐿𜐮𝐷𞠰𚐪𞐬𞐬𞐩𞱔𛡰𭑳𪀨𮱸𞠱𜰸𜀬𮐺𞐰𛁡𞠭𝀬𭀺𭀪𞐹𯐩`.replace(/uD./g,'')))

Mar 5 2020 7:01 AM UTC

}// 139/140

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#glass reflection and refraction #compressed

u/elochimsiemasz

👃
u/katkip

nose?

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tomxor

remix of d/17835 by u/pavel

function u(t) {

eval(unescape(escape`𫱮𫑯𭑳𩑭𫱶𩐽𩐽🡦𚁸𛡬𪑮𩑗𪑤𭁨🐴𛀴𛁣𛡷𪑤𭁨👩𫡮𩑲𥱩𩁴𪀬𤠽𩐩𒡦🐨𦀬𦐬𭰩🐾𚁒𛡸𛑘𛑷𛰲𚐪𚠲𚰨𤠮𮐭𦐭𭰯𜠩𚠪𜠼𭰪𭰪𝠮𜠸𚰳𩐴🱷🠶𙠦𩠨𦀬𦐬𭰯🐲𚑼𩠨𦀫𭰬𦐬𭰩𯁦𚁘𛁙𚱷𛁷𚑼𩠨𦀫𭰬𦐫𭰬𭰩𞡸𛡳𭁲𫱫𩑒𩑣𭀨𦀬𦐬𭰬𭰩`.replace(/u../g,'')))

Mar 5 2020 2:17 AM UTC

}// 135/140

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#interactive #quadtree (move your mouse)

u/tomxor

Note the intersection is fuzzy since full circle-AABB takes too much code, instead it's just circle-point + current subdivision width based radius (w*w*6.28), i.e it becomes more accurate as it converges.
u/tomxor

This is why there are a bunch of divisions around it that would not exist with an exact test. Pavel's doesn't do this by cleverly choosing a geometry that only need intersect the top left of each square.
u/katkip

Nice!

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rodrigo.siqueira

remix of d/17823 by u/New_Core

function u(t) {

for(c.width|=i=160;i--;x.stroke())x.beginPath(),x.strokeStyle=`hsl(${i/4+t*4},80%,50%)`,x.arc(1800-i*10,540,(90*(t%3))**S(i/24)+36,8,0,7)

Mar 4 2020 8:19 PM UTC

}// 137/140

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#Glass blowing

u/katkip

good idea tho

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KilledByAPixel

function u(t) {

with(x)for(r=m=>C(++h)*m,t||fillRect(0,0,i=h=2e3,h),translate(w=960,540);i-->0;clearRect((z=i%19)*i,a=r(z?89:-1),r(z?4:w),-2*a))rotate(r(h))

Mar 4 2020 6:29 PM UTC

}// 140/140

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Cracked #Glass 🔨+🖥️

u/katkip

Nice idea
u/DataMeta

Cool!

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pavel

function u(t) {

c.width|=f=(X,Y,w)=>X*X+Y*Y<=2e6*S(t/9)**2?w>9&&f(X,Y,w/=2)|f(X+w,Y,w)|f(X,Y+w,w)|f(X+w,Y+w,w):x.strokeRect(X,Y,w,w);f(x.lineWidth=4,4,1072)

Mar 4 2020 5:31 AM UTC

}// 140/140

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Quadtree

Show more comments…
u/katkip

Awesome!
u/tomxor

I love it !
u/sigveseb

Cool!
u/Xen

SEXY!
u/aleamb

love it!
u/tomxor

#Quadtree
u/Qwitter

YES!!
u/vain

Never saw this fx before. But it looks really beautiful

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katkip

function u(t) {

eval(unescape(escape`𪑦𚀡𭀩𮱱👛𧐻𩡯𬠨𪐽𞐹𞱩𛐭𞰩𬐮𬁵𬱨𚁻𮀺𞐶𜀬𮐺𝐴𜀬𨐺𪐪𜀮𝠹𯐩𯑦𫱲𚁩🐱𞐻𪐭𛐻𚑦𫱲𚁯𘁯𩠠𬐩𮱸𛡦𪑬𫁒𩑣𭀨𫰮𮀬𫰮𮐬𝐬𝐩𛁯𛡸𚰽𠰨𫰮𨐩𛁯𛡹𚰽𤰨𫰮𨐩𞱩𩠨𩡲𨑭𩐥𜠲🐽𜀩𫰮𨐫👯𛡡𛰹𞐹𯐻𮀮𩱬𫱢𨑬𠑬𬁨𨐽𛠱`.replace(/uD./g,'')))

Mar 3 2020 8:37 PM UTC

}// 131/140

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katkip

function u(t) {

eval(unescape(escape`𪑦𚀡𭀩𮱡👘👙🐰𞱔👛𜁝𯐻𮠽𣑡𭁨𛡐𢐯𜠻𩡯𬠨𫰠𫱦𘁔𚑸𛡦𪑬𫁒𩑣𭀨𝐰𞀫𦀬𝐰𞀫𦐬𜰬𜰩𛁘𚰽𠰨𨐩𚠳𛁙𚰽𤰨𨐩𚠳𛁡𚰽𫰽🐱🱺𞠭𮠻𪑦𚁔𛡬𩑮𩱴𪀼𞀹𜀰𚑔𛡰𭑳𪀨𛠮𛡔𛡲𩑶𩑲𬱥𚀩𛀱𚐠`.replace(/uD./g,'')))

Mar 3 2020 8:29 PM UTC

}// 117/140

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a #fractal #curve but I am not sure that curve is this because in the middle is different if(!t){a=X=Y=0;T=[0]};z=Math.PI/2;for(o of T)x.fillRect(508+X,508+Y,3,3),X+=C(a)*3,Y+=S(a)*3,a+=o==1?z:-z;if(T.length<8900)T.push(...T.reverse(),1)

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New_Core

function u(t) {

for(c.width|=i=640;i--;x.stroke())x.beginPath(),x.strokeStyle=`hsl(${i},99%,50%)`,x.arc(99*S(t-i/9)+i*3,i%160*8-99,a=99**C(i/14+t)+14,a,0,7)

Mar 3 2020 6:14 PM UTC

}// 140/140

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u/katkip

looks good!
u/aleamb

amazing!

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