New #lighting dweets

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: #ScaryMovies

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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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danny@hille.dk

remix of d/21523 by u/danny@hille.dk

function u(t) {

w=c.width=128;for(i=1e4;i--;)x.fillRect(X=i%w,Y=i/w|0,Math.min(s=Math.hypot(X-64-
C(t)*40,Y-36-S(t*1.2)*28)/16,.4/((X^Y)%7)),s)

Jun 2 2023 9:45 PM UTC

}// 127/140

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bump mapping remix

u/Joachim

Really nice #lighting
u/@noel

Beautiful. I need to dig into this, to understand how this actually works.
u/rodrigo.siqueira

Wow! Replace X^Y with X|Y to generate Sierpinski triangles. Replace Math.min with Math.max for a more dramatic effect. Remove |0 for improved golfing (a minimal visible effect on top alignment). Replace "t*1.2" with "C(i+t)*6" for the "water effect".
u/jellyedwards

Wow that's amazing!!

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New_Core

function u(t) {

e=-.8
m=.153
for(X=2e3;X--;){a=X/600-1.6,b=t*.1-1,i=0
do{d=a*a-b*b+e,b=2*a*b+m,a=d,i++}
while(i<255&&(a*a+b*b<4))
x.fillRect(X,t*60,1/i,i)
}

Mar 28 2022 4:08 PM UTC

}// 140/140

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in the "while".. set the number 4 to 1 to see the footprint of a julia... =)

Show more comments…
u/New_Core

the org julia code wasnt done by me, I just shorten and messed it up a bit ;)
u/andrea270872

Love the smudge effect!
u/magna

Looks like embroidery!
u/magna

#3d
u/Xen

wild!
u/danny@hille.dk

Cool!
u/vain

beyond incredible! I really love the way, how the image is drawn!
u/sigveseb

The smudge effect!
u/joeytwiddle

#julia #fractal with sort of #d3 #lighting
u/SophiaCristina

<3 <3 <3

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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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yonatan

function u(t) {

for(i=2e3;i--;)Y=frame/500-1,X=i/500-2,s=X+Y+(q=1-X*X-Y*Y)**.5,x.fillRect(i,frame,q<0?1:s>1?0:1-s,1)

Oct 29 2020 11:34 PM UTC

}// 100/140

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lit sphere via https://twitter.com/kamoshika_vrc/status/132…

u/joeytwiddle

#sphere
u/joeytwiddle

#sphere #lighting #raytracing
u/tomxor

Nice!

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yonatan

function u(t) {

for(c.width|=i=99,x.font='4in "';i--;x.fillText('EMBOSS',250+(i&&S(i)*i/9),750+(i&&C(i)*i/9)))x.fillStyle=`hsl(0 0%${i?S(i+t*2)*50+75:99}%`

Sep 24 2019 12:00 PM UTC

}// 140/140

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I think fullscreen looks nicer

u/joeytwiddle

#text #lighting

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DataMeta

remix of d/15449 by u/DataMeta

function u(t) {

c.style.background=R();if(t<2)for(i=1920;i--;)x.fillStyle=R(l=S(t)*i/7,l,l),
x.fillRect(i,540+S(C(t+i/64+l/64))*S(t)*i/4,9,9)

Aug 24 2019 1:04 AM UTC

}// 125/140

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#d3 #shading #lighting

u/pasacaglia

Cool
u/Qwitter

bone paper!

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katkip

function u(t) {

eval(unescape(escape`𭁼𯀨𦀽𜠶𜀬𦐽𜠴𜀬𥠽𭠽𜐰𚐻𩡯𬠨𨰮𭱩𩁴𪁼👩🐰𞱩𚰫🀹𞐻𚑸𛡦𪑬𫁓𭁹𫁥👒𚀰𛁩𚠳𚐬𮀮𨡥𩱩𫡐𨑴𪀨𚐬𮀮𨑲𨰨𦀭𪐪𠰨𬠽𭀪𥠯𞐩𛁙𛑩𚡓𚁲𚐬𜠰𜀭𪐪𜠬𜀬𝰩𛁸𛡦𪑬𫀨𚐊𦀫👖𞱙𚰽𭠻𭠫🐮𝐻𪑦𚁙🠸𞀰𚑶𚠽𛐮𝠬𦐭🐹𞱩𩠨𦀾𜐷𜠰𚑖𚠽𛐮𞐬𦀭🐹`.replace(/uD./g,'')))

Aug 6 2019 9:56 AM UTC

}// 140/140

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Bouncing #sphere #shades #lighting #realistic #bounce #ball #physics

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LimeLaser

function u(t) {

r=Math.random
x.globalAlpha=.01
if(t<23){x.beginPath()
for(i=99;i--;){a=6.3*r()
p=500*r()**.1
x.lineTo(960+p*C(a),540+p*S(a))
}x.stroke()}

Aug 1 2019 3:10 AM UTC

}// 138/140

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Rendering Of A Cannonball

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KilledByAPixel

remix of d/13820 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑯𫡭𫱵𬱥𫑯𭡥👥🐾𮱦𫱲𚁣𛡷𪑤𭁨𯀽𪐽𞐻𪐭𛐻𚑦𫱲𚁪🐱𜀻𛐭𪠻𩡩𫁬𥁥𮁴𚁪𛀨𦀽𜠰𜀪𪠩𚰡𥀪𚁘𛑥𛡸𚠳𚐯𞐭𬰬𚁙🐵𝀰𚰳𜀰𚡓𚁪𚡪𚐩𚰡𥀪𚁙𛑥𛡹𚠳𚐯𞐫𬰩𚑔🐡𪐬𩡩𫁬𤱴𮑬𩐽𤠨𜀬𜀬𥀪𜠵𝐬𪐿𛠲𞠱𚐬𬰽𜐱𝀫𪐪𝐬𩡯𫡴👳𛰵𚰢𩑭𙰢𯐻`.replace(/u../g,'')))

May 15 2019 12:00 AM UTC

}// 140/140

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Number Shadows - Your mouse is the light source! #supercompressed

u/joeytwiddle

#lighting
u/katkip

#d3

dwitter.net | #lighting