Dweets awesomed by u/Piggo

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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Current theme challenge: #Food

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rodrigo.siqueira

remix of d/21257 by u/Xen

function u(t) {

for(i=2e3,f=g=>i*g(i/t+i**7);i--;x.fillRect(950+f(C),540+f(S),9/t,1+9/t))x.fillStyle=`hsl(${i/30},80%,${S(i/1e5+t)*99}%,.2`

Jan 13 2021 11:39 PM UTC

}// 123/140

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Dots of light

u/Qwitter

awesome, Im not sure why, but i think this frightens me after staring at it for a while.
u/Xen

nice!
u/iverjo

Put it in fullscreen and look at the center for at least 10 seconds - it might look like the big parts move in a wavy motion. #opticalillusion
u/joeytwiddle

Instructions unclear. Summoned Cthulu.
u/Qwitter

#barkfleshwound

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Qwitter

remix of d/21217 by u/tomxor

function u(t) {

eval(unescape(escape`𨴮𬵴𮕬𩔽𙵦𪕬𭅥𬤺𪕮𭥥𬥴𚄧𞵦𫵲𚅬𩕴𘅱𛅰🔹𝤰𛅺𛅁𛅂𛅮𛅘𛅙𛅩🔲𝄻𪔻𦄫🕁𛅙𚴽𠤬𬔽𦄭𬄩𚅙🥱𚥱𛵰𙤦𦔼𞔹𞔩🵸𛥦𪕬𫅒𩕣𭄨𦄬𦔬𫤯𚴫𮤪𚤮𝔬𜔯𞄩𞤨𮤽𜔬𬤽𪔪𚥮𚥴𛅁🔱𚥓𚅲𚔬𠤽𜔪𠴨𬤩𛄭𛕮𚕼𯄨𫤽𞄬𦄽𬄬𦔽𞔹𛄭𛕩𚔻`.replace(/u../g,'')))

Jan 13 2021 7:57 PM UTC

}// 133/140

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Pascal

function u(t) {

c.width|=0;
for(X=48;X--;c.style.filter='blur(5px)contrast(99')for(Y=27;Y--;x.fillRect(40*X,40*Y,40,40))x.globalAlpha=.5+S((X+1)*(Y+1)+t)/2

Jan 10 2021 8:54 PM UTC

}// 139/140

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u/katkip

*O*
u/danny@hille.dk

hehe nice

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tomxor

remix of d/20405 by u/tomxor

function u(t) {

eval(unescape(escape`𨰮𬱴𮑬𩐽𙱦𪑬𭁥𬠺𪑮𭡥𬡴𚀧𞱦𫱲𚁬𩑴𘁺𛁁𛁂𛁮𛁘𛁙𛁩🐲𝀻𪐻𦀫👁𛁙𚰽𠠩𚀴𜀫𦀯𝀸𧠱𝠫𦐯𝀸𚐥𜐵🠱🱸𛡦𪑬𫁒𩑣𭀨𦀬𦐬𫠯𚰫𮠪𚠮𝐬𜐯𞀩𞠨𮠽𜐬𬠽𚁮𚰷𚐪𚡩𚡴𛁁🐲𚡓𚁲𚐬𠠽𜠪𠰨𬠩𛀭𛑮𚑼𯀨𫠽𞀬𦀽𜐲𞀰𚱩𚡓𚁴𚐬𦐽𝰲𜀫𪐪𠰨𭀩𛀭𛑩𚐻`.replace(/u../g,'')))

Jan 10 2021 12:15 AM UTC

}// 140/140

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2D #raymarching #globalillumination

Show more comments…
u/KilledByAPixel

very cool 👍
u/Xen

Love it!
u/Qwitter

cool, i wish i could follow the js. what does the code look like unpacked?
u/Qwitter

Sometimes Im amazed at how stupid I am: 'filter:invert(';for(let z,A,B,n,X,Y,i=24;i;X+=A,Y+=B)(40+X/48^16+Y/48)%15>1?x.fillRect(X,Y,n/++z**.5,1/8):(z=1,r=(n+7)**i*t,A=2*S(r),B=2*C(r),--n)||(n=8,X=1280+i*S(t),Y=720+i*C(t),--i);
u/jellyedwards

Wow!
u/Pascal

damn
u/aleamb

fucking awesome
u/sigveseb

I let it sit for a while and took a screenshot https://imgur.com/a/MokWulC
u/magna

wow
u/DataMeta

absolutely amazing
u/iverjo

Very nice. Writeup please?
u/joeytwiddle

Great! #lighting #shadow
u/vain

great raycast

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rodrigo.siqueira

remix of d/21197 by u/rodrigo.siqueira

function u(t) {

for(i=2e3,f=g=>i*C(i+S(t)**4)*g(i/70)*T(i/999);i--;x.fillRect(960+f(S),540+f(C),9/t,9/t))x.fillStyle=`hsl(${i/t/80},99%,${S(i-t)*99}%,.1`

Jan 8 2021 1:10 PM UTC

}// 137/140

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Cubist Spiral #spiral

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u/ciaccodavide

Bueautiful! *^*
u/danny@hille.dk

Incredible, love it!
u/Xen

nicely done!
u/DataMeta

this is so rad
u/taupelink

trippy
u/joeytwiddle

That is rich

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ciaccodavide

remix of d/14505 by u/simonmkwii

function u(t) {

for(x.fillRect(0,0,i=640,i);z=--i**.3;x.fillStyle=R(0,500/--z))x.setTransform(s=20/z+S(t),0,0,s,0,0),x.fillText('*',i%z*99-C(t),t++%z*60)

Dec 30 2020 3:42 PM UTC

}// 137/140

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command line #snowflake

u/andrea270872

Matrix Xmas :D Very cool!

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rodrigo.siqueira

remix of d/20960 by u/rodrigo.siqueira

function u(t) {

c.width|=0
for(i=5e3;i--;f(0,K=i%2,280,i))f=(w,h,q,d)=>q>99?f(C(t)*h+q*C(d),w+q*S(d),q/2,i*i):x.fillRect(w+480+930*K*T(t),h+540,5,9*(1.2-K))

Dec 28 2020 1:34 PM UTC

}// 140/140

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Out-of-Donut Experience 🍩👻#torus #donut

u/ciaccodavide

nice!
u/jellyedwards

😄
u/Qwitter

"donuts souls exchange donuts holes" say it

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jwc

function u(t) {

for(t/=.6,c.width|=i=32;--i;)for(j=18;--j;x.fillRect(60*i-20*C(j+t),60*j-20*S(i+t),s,s))d=9-((16-i)**2+(9-j)**2)**.5/4,s=3+d*C(d/.8+t*2)**2

Dec 23 2020 4:05 AM UTC

}// 139/140

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rodrigo.siqueira

remix of d/20922 by u/rodrigo.siqueira

function u(t) {

for(i=1080;i--;x.fillRect(0,i,1+i/t,1))Y=i/230,
h=300*S(Y%S(m=t/9%S(p=C(q=Y*S(Y/3-S(t)/3))))),
x.fillStyle=R(h*q,h*m,h*p)
x.drawImage(c,1,0)

Dec 5 2020 7:13 PM UTC

}// 140/140

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Variation of the scrolling version by u/danny@hille.dk

u/danny@hille.dk

Freaking Awesome
u/danny@hille.dk

I love the way it starts

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pavel

remix of d/20901 by u/pavel

function u(t) {

for(i=c.width|=p=g=>(g(0)?k&3:k/4)*200+130*g(.8+(~~k+k/4&1||-1)*(i%120*41/13+5*t));k=--i/120;)x.fillRect(560+p(S),240+p(C),9,9)

Dec 4 2020 9:12 PM UTC

}// 127/140

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Moving #illusion

u/pavel

Discovered this randomly when golfing the original. Not sure why it happens.
u/danny@hille.dk

cool effect: the "feature" is caused by not truncating k=--i/120 -> k=--i/120|0 disables this feature :-)
u/KilledByAPixel

👍
u/danny@hille.dk

better solution: for(i=c.width|=p=g=>(g(0)?k&3:~~k/4)*200+150*g((k&1||-1)*(i%120*41/13+5*t));k=--i/120;)x.fillRect(560+p(S),240+p(C),9,9)

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