Dweets awesomed by u/oddbar

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: #Food

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rodrigo.siqueira

remix of d/29423 by u/robbyg

function u(t) {

x.globalAlpha=.1
x.fillRect(0,0,2e3,2e3)
for(i=6e3,X=Y=Z=0;i--;Z=X)x.clearRect(X=960+(S(Y-X+t)*C(X))*440,Y=540+(S(Z+Z)-C(Y))*200,2,1)

Feb 5 2024 3:12 PM UTC

}// 133/140

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Morphous

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taupelink

remix of d/28132 by u/taupelink

function u(t) {

eval(unescape(escape`󩭯󬬨󪜽󝌰󜌻󪜭󛜻󮌮󬽴󬭯󪽥󤭥󨽴󚍘󚬶󝜰󛍙󚬳󝜰󛌭󭼬󭼩󚝘󟝩󚭩󚭴󙜳󛬱󛍙󟝘󚭩󙜳󛬱󛍯󟝙󙬲󛍸󛭳󭍲󫽫󩝓󭍹󫍥󟝠󪍳󫌨󙍻󫼪󞜶󚼡󫼪󝌸󚭓󚍘󛜮󜬩󚬪󝍽󛌤󮼴󜌫󜼰󚭃󚍙󛝯󚜪󚬳󯜥󛌤󮼱󜬫󝌸󚭓󚍘󚜪󤼨󦜩󚬪󜽽󙜬󙍻󨜽󮌮󫍩󫭥󥽩󩍴󪌽󝌪󭌯󜬪󚭴󯜩󨌬󭼽󪜪󨜻`.replace(/u../g,'')))

Feb 5 2024 6:49 AM UTC

}// 140/140

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d/29426

u/cantelope

#waitforit

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rodrigo.siqueira

remix of d/28987 by u/rodrigo.siqueira

function u(t) {

K=!t||K+9
for(i=2e3;i--;x.fillStyle=R(T=240,80),x.fillRect(i,K-Y,1,4))Y=C(t+i/T-C(i/T-C(K/50))/t)**2*T,x.fillStyle=R(),x.fillRect(i,K,1,-Y)

Nov 27 2023 8:40 PM UTC

}// 139/140

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There are no "behind lines"! #mountains

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tomxor

remix of d/28068 by u/tomxor

function u(t) {

for(w=c.width&=i=10368;i;T=(2*X&3*t+T)%7<3&Y*Y<2?R-T?T+.1:R+=.1:R!=T?R&=x.fillRect(--i%w,i>>7,(X+Y+5)/9,1):T+.2)X=i%w/64*R-T,Y=i/4e3*R-T

Nov 7 2023 9:40 PM UTC

}// 136/140

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Pseudo Global Illumination - Sans-Textures

u/cantelope

wat
u/joeytwiddle

#d3 #lighting #uncompressed #hiddengem
u/DataMeta

wow
u/aleamb

wtf.... amazing!
u/pavel

Holy crap!

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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.
u/ximavus

Raycasting in 140 characters of JS is incredible

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tomxor

remix of d/27986 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𩡯𬠨𭰽𪠽𨰮𭱩𩁴𪀦👩🐸𜰲𜀻𪐭𛐻𪐥𭱼𯁸𛡦𪑬𫁔𩑸𭀨𙱁𥠭𜐴𜀧𛀮𜰬𞐩𚑸𛡦𪑬𫁒𩑣𭀨𪐥𭰬𪐯𭰬𚁁👪𙑷𛰳𜠰𚡔𛁁𧡁𚡓𚁴𚑞𪐯𜑥𝀪𥀫𞐪𭀩𙠱𝐿𜠪𘐨𦀽𪐥𭰭𤰨𭀩𚠲𜀫𥀫𚰯𜐶𛁘𛰳𝐭𜐮𞑼𪐯𭰯𞀭𝁼𦀦𝀩𞠨𚰫𪠬𤠽𥀬𥀽𞐬𝀰𛱒𚐬𜐩`.replace(/u../g,'')))

Jun 15 2023 10:02 PM UTC

}// 136/140

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VHS 📼 #default + horizontal shift from noise

u/KilledByAPixel

nice, yeah that looks a bit more realistic!
u/tomxor

The noise on this is really good, I tried to find redundant bits to remove but everything you included adds to the realism.
u/KilledByAPixel

I don't know how I came up with this, was going through some of my old abandoned sketches and found this minus the default

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KilledByAPixel

function u(t) {

eval(unescape(escape`󩭯󬬨󭌿󥌫󚼥󦬿󫼫󟝡󚼽󚍢󛝡󚜯󞜹󞭢󟝃󚍔󚭔󚜪󜬺󫼽󨜽󨬽󥌽󜌬󨼮󭽩󩍴󪍼󟝳󟜹󛍘󟝩󟜹󝬰󞽩󛜭󞽳󚬽󛬹󞜩󮍛󩬽󙽦󪝬󫍒󩝣󭌧󧜨󪜪󜬬󦬽󜬸󜜬󜼬󛜨󚍩󚽯󚬵󟬾󝌩󚬪󝌩󙜹󞜩󛍸󦽦󧜨󚍘󚼽󨜩󛝳󚬹󞜪󚍩󙜲󚜬󪜪󬼯󞜫󦬬󬼪󚌨󥌯󜬭󪜯󜜹󯌰󚜥󝜦󙭩󙜲󟼹󞜺󞌹󚜬󬼪󞜩`.replace(/u../g,'')))

Jan 28 2023 10:56 PM UTC

}// 140/140

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Retro Racing 🏎️

u/vain

Holy shit! What a genius retro racing dwittro entry! 😃👍
u/kokot

for(t?T++%Z?o+=a+=(b-a)/99:b=C(T*T)*2:o=a=b=T=0,c.width|=s=9,X=i=960;i--;s*=.99)x[f='fillRect'](i*2,Z=281,3,-((i+o*5>>4)**4)%99),x[f]((X+=a)-s*99*(i%4),i*s/9+Z,s*((T/2-i/19|0)%5&&i%2?99:89),s*9) this actualy makes two way road
u/aleamb

fucking awesome
u/joeytwiddle

#road

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tomxor

remix of d/26200 by u/tomxor

function u(t) {

eval(unescape(escape`𩠽𚁘𛁙𛁚𛁁𚐽🡸𛡦𪑬𫁒𩑣𭀨𦀬𦐬𭰽𦠼𛠳🰴𚡚𞡚𛁷𛁚🠮𜠦𙡦𚁘𚱚𚡓𚁁𚐬𦐭𦠪𠰨𠐩𛁚𚠮𞐵𛁁𚱃𚀹𚡴𛱚𚱮𛱚𚰲𚡴𚰲𚡮𚐯𦠯𞀩𛁚𚠳𙐱🠮𞀦𙡦𚁘𛁙𛁚𚠮𞀬𠐫𞐪𦠥𜠭𜐬𫠫𚰩𛁸𛡦𪑬𫁓𭁹𫁥👠𘰤𮰶𚡚🀼𝑽𨀩𞱣𛡷𪑤𭁨🐳𜠰𞱦𚀱𝠰𛀲𜀰𛀱𜐬𫠽𜀩`.replace(/u../g,'')))

Sep 28 2022 12:52 AM UTC

}// 140/140

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#tree 🌳

Show more comments…
u/tomxor

A brisk wind, a hint of autumn.
u/taupelink

nice!
u/KilledByAPixel

awesome
u/Joachim

Wow, I love the colours! #organic
u/sigveseb

Incredible!
u/jellyedwards

Wow!
u/magna

Aspen!
u/tomxor

This is slow on Chrome for some reason. Try Firefox for higher FPS
u/aleamb

wow!
u/aleamb

#organic #tree #landscape

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tomxor

remix of d/26087 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪀽𬀽𭰽𜐲𞀻𬀼𜡥𝀻𚐨𭐾🠽𜐩🱛𦀬𦡝👛𦀪𛠸𚱚𚠮𝠬𦠪𛠸𛑘𚠮𝠬𠰫👓𚁘𛱵𚐪𭐯𞑝𞡸𛡦𪑬𫁒𩑣𭀨𚰫𬀥𭰬𬀯𭰬𜐬𛑃𚡰𛰶𩐳𛁸𛡦𪑬𫁓𭁹𫁥👒𚁃𚠷𚱓𚁃𚐪𞐬𠰪𝠬𠰼𜀿𬀯𜰲𞡃𚠵𚐬𭐽𜠳𞀬𠰽𜐴𛁘🐲𩐶𛱰𚠨𬀯𝠴𙐲𛐱𚐬𦠽𜡥𝠯𬀫𭀪𭐩`.replace(/u../g,'')))

Sep 11 2022 12:22 AM UTC

}// 140/140

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Perspective Mountain Range

u/Joachim

Wooooooow! Best #d3 terrain yet!
u/tomxor

Teamwork ;D
u/SophiaCristina

Truly loved it!

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rodrigo.siqueira

remix of d/26065 by u/rodrigo.siqueira

function u(t) {

for(c.width=i=W=230;i--;)for(j=1;j<W;x.fillRect(i,j++-h,.2,h-20))x.fillStyle=R(h=((d=26*W/j)*S(A=i/W+t/3)&d*C(A)+t*60+t&31)*110/d,d,d*1.1)

Sep 9 2022 2:31 PM UTC

}// 138/140

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Underwater pyramids #pyramid #d3

u/danny@hille.dk

You found Atlantis 👍
u/vain

Great! Reminds me a bit of "H-Immersion by Ctrl-Alt-Test" 👍
u/Qwitter

I feel like a guardian is about to curse me when I look at this one.

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