Dweets awesomed by u/Ghoust

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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Opposites

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rodrigo.siqueira

remix of d/28101 by u/rodrigo.siqueira

function u(t) {

for(c.width<<=i=2e4;i--;x.fillRect(960+C(K=i+t/4+1/a)*740*a,540+S(K)*490*a,30*a,30*a))a=(i/C(i*2)+t/6)%2-2

Jul 7 2023 9:46 PM UTC

}// 106/140

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The double spiral vortex #vortex #spiral

u/UEZ

looks great, maybe inverted colors would be nicer.
u/UEZ

no, inverted doesn't look better imho ^^
u/NoName

very fun

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taupelink

remix of d/28104 by u/taupelink

function u(t) {

for(i=k=242;i--;x.fill())x.beginPath(x.fillStyle=`hsl(${j=i%18*k},50%,60%,${i*i/5e6}`),x.arc(X=i%9*k,Y=i%5*k,k/99**t,j,j-1.57),x.lineTo(X,Y)

Jul 7 2023 9:28 PM UTC

}// 140/140

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d/28105

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taupelink

remix of d/28052 by u/taupelink

function u(t) {

eval(unescape(escape`景爨椽㌸㔻椭ⴻ砮晩汬⡸⹳瑲潫敒散琨堭㤰ⱙⴹ〬欪㴮㤫琥⸰㈬欩⤩欽ㄸ㔬砮扥杩湐慴栨砮晩汬却祬攽恨獬⠤筩┸⩫紬㜰┬⑻㐰⭩⼲紥Ⱞ㐩怩ⱸ⹡牣⡘㵩┱ㄪ欬夽椥㜪欬欯㌪⩴ⱩⱩⴱ⸶⤬砮汩湥呯⡘ⱙ⤠`.replace(/u([^D].)/g,'$1%')))

Jul 7 2023 5:23 PM UTC

}// 140/140

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d/28104

u/Joachim

#abstract
u/rodrigo.siqueira

These are party flags of the June Festival, a traditional Brazilian celebration, artistically portrayed by the renowned Brazilian painter Alfredo Volpi. The pastel colors seen on these flags are typical of tissue paper due to its transparency. If you search for 'Alfredo Volpi' or 'bandeirinhas juninas', you will find the reference.
u/taupelink

A happy coincidence!
u/NoName

woaah

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rodrigo.siqueira

remix of d/28100 by u/Xen

function u(t) {

for(i=2e4;i--;x.fillRect(960+C(K=S(i)*i+t/4+1/a+a/t)*1200*a,540+S(K)*520*a,9*a,9*a*(t<.5)))a=(i/C(i)+t/6)%2

Jul 6 2023 12:39 PM UTC

}// 107/140

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Andromeda

u/UEZ

#galaxy

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rodrigo.siqueira

remix of d/28091 by u/rodrigo.siqueira

function u(t) {

c.width|=0
for(i=2e4;i--;x.fillRect(960+C(K=S(i)*i+t/4+1/a+a/t)*740*a,540+S(K)*490*a,30*a,30*a))a=((i/C(i)+t/6))%2-2

Jul 5 2023 3:27 PM UTC

}// 116/140

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Fast Vortex #vortex

u/cantelope

whoa
u/NoName

i like how it goes the opposite direction in the centre
u/NeonStrawberry

Cool!

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rodrigo.siqueira

remix of d/28085 by u/NeonStrawberry

function u(t) {

c.width|=0
for(i=9e3;i--;x.fillRect(960+C(K=i/6-t/5)*740*a,540+S(K)*490*a,95*a,95*a))a=2-((i/2+t+S(i/4))%2)

Jul 4 2023 1:42 PM UTC

}// 107/140

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Convergent vortex

u/NeonStrawberry

Awesome!

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redactedhoptional

function u(t) {

eval(unescape(escape`𘑴🱡🐨𨠽𫡥𭰠𠑵𩁩𫱃𫱮𭁥𮁴𚀩𚐮𨱲𩑡𭁥𣱳𨱩𫁬𨑴𫱲𚀩𞠨𨐮𩡲𩑱𭑥𫡣𮐮𭡡𫁵𩐽𝀴𜀪𜠪𚠨𘠰𜠵𜠹𞐹𞐹𞐷𝰷𝰷𝰰𜠵𜠷𝰷𝰷𝰵𝐵𝐴𜠰𜠵𜠵𝐵𝐷𝰴𝀴𝀴𝀰𜀰𜀷𝰷𝰵𘡛𭀥𞀪𞁼𜁝𛰱𜠩𛁡𛡣𫱮𫡥𨱴𚁢𛡤𩑳𭁩𫡡𭁩𫱮𚐩𒡯𫡣𫁩𨱫👟🐾𨐮𬱴𨑲𭀨𚐊`.replace(/u../g,'')))

Jul 3 2023 9:42 PM UTC

}// 140/140

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🕹 A full game in 140 characters!!!!!! 🕹 (Click to start)

Show more comments…
u/tomxor

I hate it. But also well done ;D
u/redactedhoptional

But it's never gonna let you down, how can you hate it?
u/magna

Tip: up up down down attack
u/NoName

woah is that a koala emoj in the script
u/NoName

how do i turn it off
u/384.cz

great

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KilledByAPixel

function u(t) {

eval(unescape(escape`󩬽󚍷󛍳󚜽󟬨󫜽󚍃󚍳󚜪󝜰󚭴󙝷󚽷󚽳󚭳󚜥󭼩󟭷󛼲󟽷󛝭󞭭󒭦󫽲󚍣󛭷󪝤󭍨󙬽󪼽󝽥󜼻󪼭󛜻󮌮󨭥󩽩󫭐󨝴󪌨󚍘󛝁󚜪󚬲󚼨󦜭󠬩󚬪󜬼󝽥󜼦󙭸󛭳󭍲󫽫󩜨󚜩󚝸󛭬󪝮󩝔󫼨󦌽󩬨󥼽󜜵󜼶󛍩󟝫󙜶󝌩󛍙󟝦󚍈󟜸󝬴󛍩󚭩󚜩󛍸󛭬󪝮󩝔󫼨󠜽󩬨󥼬󪬽󪼾󟬶󚜬󠬽󩬨󢌬󪬪󪬩󚜻`.replace(/u../g,'')))

Jun 30 2023 4:50 PM UTC

}// 140/140

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Missed Connections

u/pomprocks

Can you make show circular waves like in the ending credits to the movie ex machina?
u/KilledByAPixel

we might be able to do something like that, i'll have to think on it

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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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KilledByAPixel

function u(t) {

eval(unescape(escape`󩭯󬬨󬬽󭌾󜬿󚌴󚽴󚬪󞌥󞍼󜌩󚬲󛜱󞬱󞽲󛜭󞼩󩭯󬬨󪜽󭼽󜭥󜼻󪜭󛜻󮌮󩭩󫍬󤭥󨽴󚌮󛬮󭌾󜬿󦽓󚍴󚬪󞜩󚭷󚼹󚭲󚭃󚍩󚜬󭌪󝜰󜌭󜝥󜼭󭌪󚬷󙜵󜼷󚼹󚭲󚭓󚍩󚝝󞭛󭌪󜜲󜌰󚽓󚍩󛼱󝜩󚬴󛜵󜌬󪝝󛍺󟝴󟼹󞭷󛍺󚜩󮌮󩭩󫍬󤽴󮝬󩜽󬬥󜭼󘝴󟼧󘽦󩭤󙼺󙼣󞜸󝼧`.replace(/u../g,'')))

Jun 28 2023 3:06 AM UTC

}// 135/140

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Tears of the Kingdom 🛡️🗡️ #zelda

u/magna

Pretty!
u/jdspugh

Cool

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