Dweets awesomed by u/majorh5

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: #Opposites

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NeonStrawberry

function u(t) {

c.width+=0;for(i=0;i<510;i++){a=2-((t+i/256)%2);x.fillRect(960+C(t+i)*800*a,540+S(t+i)*400*a,30*a,30*a)}

Jul 3 2023 1:26 PM UTC

}// 104/140

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The Vortex

u/tomxor

Welcome!
u/redactedhoptional

Nice, this is making me dizzy :P
u/jkeks

how to embed it to my site ?
u/rodrigo.siqueira

u/jkeks to embed in your site, click "share" and see the "embed" code.

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tomxor

remix of d/28051 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𭰽𨰮𭱩𩁴𪀦👩🐱𜀳𝠸𞱩𞱔🐨𜠪𦀦𦠩𙐷🀳𙡙𚡙🀲🱒𛑔🱔𚰮𜀵𞡒𚰽𛠰𝐺𤠡👔🱒𙠽𮀮𩡩𫁬𤡥𨱴𚀭𛑩𙑷𛁩🠾𝰬𜐭𝁥𝐯𚁘𚱙𚰱𞀩𚠪𝐬𜐫𭐥𝠯𝠯𤠩𞠨𭐽𦐼𛠳🱙𚡙𧠲𞡙🀮𝠿𝐺𭰫𦀪𞑞𦐪𝑞𦠪𞐬𥀫𛠱𚐩𦀽𪐥𭰯𝠴𚡒𛑔𛁙👩𛰴𩐳𚡒𛑔𛁚👴𚠳𚱔`.replace(/u../g,'')))

Jun 28 2023 4:47 AM UTC

}// 140/140

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Pseudo Global Illumination

Show more comments…
u/KilledByAPixel

wow!
u/UEZ

brutal
u/Joachim

:O
u/vain

OMFG!!! Absolutly incredible. A "making of" or "how is it done" would be really nice. Awesome work you did!
u/tomxor

Thanks guys :) I have time to outline the pseudo radiance/GI concept at least: Each pixel's ray reflects once after the 1st intersection with the scene. All rays reflect in the same pre-defined direction, in parallel with each other, and roughly towards the light source but not collinear with it i.e not directly in line. The distance between the 2nd intersection (reflected ray end position) and the light source position, is used to estimate luminance.
u/tomxor

This is not physically accurate or intuitive, but is similar in concept to ambient occlusion where single bounce rays are used to estimate luminance based on "exposure" to ambient light. However unlike AC we can only afford a single ray, so we take that single ray and bounce it in a *similar* direction to the light source and see what we hit (what occludes the ray in that direction, which is why we get directional shading). The closer the 2nd intersection is to the light source the greater the luminance should be as a kind of bad proxy of "is exposed to a (probably?) bright surface".
u/tomxor

The reason we don't simply use the length of the reflected portion of the ray, is because although it does yield occlusion effects, the light position is inconsistent and parallel surfaces are flat and unconvincing because the reflected ray lengths are the same. So by making the light source and reflection ray not quite collinear, the distance between those 2nd intersections and the light source follows a gradient for parallel surfaces, causing more convincing shading... At least that's what I think is happening! I doubt this has good scene adaptability though, probably just a demo algorithm :D
u/tomxor

Also for some reason I'm quite happy with /R, super short poor mans anisotropic texture filter :P just fading out and letting lighting take over the further away the surface.
u/vain

Thanks u/tomxor - you really rock 😎
u/lionleaf

Ok, wow that's amazing!
u/iverjo

Incredible
u/jellyedwards

Unbelievable!!
u/cantelope

wat
u/jdspugh

Stunning
u/ugurkilci

I'm not understand! 𩡯𬠨𭰽𨰮𭱩𩁴𪀦👩🐱𜀳𝠸𞱩𞱔🐨𜠪𦀦𦠩𙐷🀳𙡙𚡙🀲🱒𛑔🱔𚰮𜀵𞡒𚰽𛠰𝐺𤠡👔🱒𙠽𮀮𩡩𫁬𤡥𨱴𚀭𛑩𙑷𛁩🠾𝰬𜐭𝁥𝐯𚁘𚱙𚰱𞀩𚠪𝐬𜐫𭐥𝠯𝠯𤠩𞠨𭐽𦐼𛠳🱙𚡙𧠲𞡙🀮𝠿𝐺𭰫𦀪𞑞𦐪𝑞𦠪𞐬𥀫𛠱𚐩𦀽𪐥𭰯𝠴𚡒𛑔𛁙👩𛰴𩐳𚡒𛑔𛁚👴𚠳𚱔 How? Your have unicode generator?
u/majorh5

You can use https://beta.dwitter.net for compressing your code to get it even smaller.

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cantelope

function u(t) {

eval(unescape(escape`𠠽𭀿𠠺𠑲𬡡𮐨𭰽𜡥𜰩𛡦𪑬𫀨𚐮𫑡𬀨𚁶𛁩𚐽🡛𪐪𚠹𙑷𛁩𧐩𞱣𛡷𪑤𭁨👷𛁸𛡧𫁯𨡡𫁁𫁰𪁡🐮𜐊𠠮𫑡𬀨𭠽🡸𛡦𪑬𫁒𩑣𭀨𦀽𭡛𜁝𙐽𭰬𭡛𜑝𙐽𜑥𜰬𞐹𛀹𞐬𭡛𜁝𚰽𜑥𞐪𚀲𚱃𚀨𚁶𦰱𧐫🐹𚐯𜠰𚱓𚁴𚐩𛰹𚐩𛰨𜑥𞀫𣑡𭁨𛡡𨡳𚁘𛐹𝠰𚐪𚠵𛰲𩐶𚐪𝀩𚐻`.replace(/u../g,'')))

Apr 6 2023 1:19 AM UTC

}// 140/140

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u/lewdev

#tornado

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KilledByAPixel

function u(t) {

eval(unescape(escape`󠜽󚍘󛍙󛍲󛍄󟜱󛍩󟜲󚜽󟭻󩭯󬬨󮌮󩭩󫍬󤽴󮝬󩜽󡌥󜬿󤬨󚜺󙼣󩭦󩬧󛍸󛭦󪝬󫌨󮌮󨝲󨼨󦌬󦜬󬬬󯭸󛭢󩝧󪝮󤍡󭍨󚌩󛌹󚜩󞽩󛜭󞽷󟬲󙬦󠜨󦌭󡜪󤼨󡌪󭌩󛍙󚽅󚭃󚍄󚭴󚜬󭼬󡌫󜜩󚝖󟝲󛼳󛍅󟝩󟼭󥬺󬬭󥬬󭼽󪜿󬬭󥬺󥭽󒭁󚌹󝬰󛌵󝌰󛌵󜌰󚜻`.replace(/u../g,'')))

Apr 3 2023 8:20 PM UTC

}// 129/140

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Circular Recursion ☯

u/cantelope

9 chars lighter than previously! \o/
u/KilledByAPixel

after posting is when i usually get more ideas how to save space :)
u/vain

Very nice and cool looking fx/movements
u/tomxor

It's circles all the way down

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CalSch

remix of d/16491 by u/bencoveney

function u(t) {

x[a='fillStyle']="#222"
x.fillRect(0,0,2e3,2e3)
x[a]="#fff"
x.font="5em Courier"
code+=i=""
code.split`
`.map(l=>x.fillText(l,i++,i*99))

Apr 3 2023 7:05 PM UTC

}// 136/140

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Different #quine

u/majorh5

new line literal is genius!

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Xen

function u(t) {

x.font='19em"'
x.fillText('🎂',C(t*(t+7))*2e3,S(t*t/.3)*1e3)
x.drawImage(c,C(t)*9,S(t+C(t/7))*9)
c.style.filter=`hue-rotate(${t*99}deg)`

Apr 2 2023 10:25 AM UTC

}// 135/140

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My Birthday Day Dweet

u/taupelink

happy birthday!
u/joeytwiddle

Have a hue-ge time! ❤️

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rodrigo.siqueira

remix of d/27269 by u/AlephCubed

function u(t) {

for(c.width=h=300;h--;)for(v=86;v--;x.fillRect(h,2*v,1,S(b+t*2)*b))for(a=b=0,i=9;i--;b=2*S(f-C(t*2-a)/4)+v/32-1)f=a*b,a=a*a-b*b-5+t%6+h/99

Mar 25 2023 7:44 PM UTC

}// 138/140

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Distorted Mandelbrot's passage through the chaos of white noise #mandelbrot #fractal #noise #uncompressed

Show more comments…
u/joeytwiddle

Wow! #shiny mandelbrot whale
u/magna

WOWW
u/aleamb

WTF!! WOW!!
u/vain

very cool - and even uncompressed! Wow! I really like the noise and scanline fx as background. Just amazing work!
u/Xen

love it!!
u/Jezza

This has made my day. For reals you've cheered up a dev from Australia who was having a bad day.
u/jdspugh

Trippy

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rodrigo.siqueira

remix of d/27249 by u/deobfuscate

function u(t) {

x.beginPath()
for(c.width|=i=9;i--;x.stroke())n=150*i,z=S((i+2)*C(t+i))*140+600,x.lineTo(X=370+n+S(t)*300,z),x.fillRect(X-25,z,50,-200)

Mar 24 2023 1:54 PM UTC

}// 135/140

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Reciprocating motion #default

u/deobfuscate

Definitely cool!
u/magna

#physics

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deobfuscate

function u(t) {

c.width+=0
c.style.filter=`blur(${3+C(t)}px)invert(1)`
x.font="25em'"
x.fillText('🔪',6e2,400+S(t)*50)
x.fillText('🖐',8e2,900+S(t*1.42)*50)

Mar 23 2023 6:27 PM UTC

}// 138/140

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Death. #ScaryMovies

u/deobfuscate

Add for(i=0;i<1080;i++)x.fillRect(C(t*i*10)*960+910,i,100,5) to the end of the code for something cooler :)

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deobfuscate

remix of d/27185 by u/deobfuscate

function u(t) {

c.width+=0
for(i=0;i<18;i++)x.fillRect(C(((t*150)*(i+1))/1000)*960+910,i*50,100,100)

Mar 22 2023 4:14 PM UTC

}// 84/140

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