Dweets awesomed by u/lionleaf

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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tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪀽𜐹𜠬𤠽𝀸𛁩🐸𜀶𝀻𪐭𛐻𮀮𩡩𫁬𤡥𨱴𚁓𚰹𝠬𥀫𝐴𛁃𚁍𨑴𪀮𨑴𨑮𜠨𤰽𪐥𞐷𛑒𛁔👩𛰹𝰭𤠬𬠽𚁓𚡓𚱔𚡔𚐪𚠮𝐩𚠹𚐪𜠰𛑲𙠴𝀦𙡲🠳𝠿𬠼𝀲🱔𛱒𞡓𛱒𞠱𛁲🠳𝠿𬠼𤠺𮠨𜰩𛰵𚐩𮠽𫠽🡮𛐭𙠦𠰨𥀯𜠫𤰪𥀯𤠫𭀪𞐩𚡃𚁔𛰴𛑺𚁮𚐪𜠩𛑲𛰶`.replace(/u../g,'')))

Nov 13 2020 1:17 AM UTC

}// 140/140

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#stargate

Show more comments…
u/DataMeta

wow WHAT
u/DataMeta

super rad combo of that fluid/smoke technique from a while back and the recent 2.5D Doom texture tricks!
u/chris@grimtech.net

Is this an incoming or outgoing wormhole? thanks
u/magna

WHAT.
u/sigveseb

Holy smokes!
u/tomxor

https://news.ycombinator.com/item?id=25088683
u/aleamb

brutal! amazing!!!
u/rep_movsd

This is one of the all time greats
u/Xen

Yess!
u/UEZ

Awesome. One rookie question: where are the color values saved?
u/red-lady

Stargate!!
u/tomxor

@UEZ the width and height of fillRect are used, when less than one pixel it will interpolate the alpha channel in proportion to the area. The same happens when an edge lies between two pixels (anti-aliasing).
u/UEZ

@tomxor: thanks for your fast reply. :-) That's what I thought but when will width used, when height? I'm trying to under JS by converting it to FB.
u/UEZ

*understand
u/tomxor

The following are equivalent when the values of w and h are between 0 and 1: fillRect(0,0,w,h) == fillRect(0,0,w*h,1). This is because the alpha channel of this pixel value is roughly proportional to the subpixel area (w*h). In terms of the patern we are trying to create, multiplication it's like the continuous version of AND, i.e the binary version is 1 IF w AND h. Additionally a lot of characters are saved when separating into w and h because we dont need to wrap the actual subexpression used to create w and h in parens and multiply them i.e fillRect(0,0,(.1+.2)*(.3+.4),1) becomes fillRect(0,0,.1+.2,.3+.4), that's -5 chars!
u/UEZ

@tomxor: thx.
u/nystrand

epic!
u/jelmo

Nice
u/vain

Wow! This seems to be your stargate... Seems you are not from this world! Incredible!!!

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tomxor

remix of d/20416 by u/tomxor

function u(t) {

eval(unescape(escape`𠐽𤰨𭀩𞱂👃𚁴𚐻𩡯𬠨𨰮𭱩𩁴𪀽𦀽𜐲𞀻𦀭𛐻𚑻𩡯𬠨𦠽𜐬𤠽𥀨𦀯𞀱𛐮𞀩𞱡🐲𜀫𚁒𚡂𛑁𚐪𦠬𨠽𜐳𜠫𚁒𚡁𚱂𚐪𦠬𚁡𧡢𚐥𝰾𜐻𚑚𚰽𛠱𞱦𫱲𚁙🐭𝀸𞱙𚰫🀴𞀻𮀮𩡩𫁬𤡥𨱴𚁘𛀳𝠭𦐯𦠬𮠥𝰼𝠿𦠯𞀺𮠫𭀪𝠦𨐦𙠭𜐬𜐩𚑺🐨𨐫𨠩𚠸🀼𨐥𜠬𮠽𮠭𦑞𦐫𮡽`.replace(/u../g,'')))

Oct 30 2020 12:00 AM UTC

}// 140/140

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Doom? #raycasting

Show more comments…
u/tomxor

UAC something something Zombies... something something Mars
u/tomxor

Z+=.03 for smoother sampling if your CPU can take it.
u/yonatan

nice one!
u/DataMeta

super cool
u/Xen

love it!
u/sigveseb

waaa with texturing! awesome!
u/tomxor

Thanks :) I just realised I missclassified these. Although it is 2.5D with 3D texturing as Wolfenstien/Doom pioneered, the 2D distance is found using #raymarching rather than casting, which is necessary for size and implicit surfaces.
u/DataMeta

#d2.5
u/DataMeta

heheh tag gaffe
u/bandaloo

oh my god dude
u/vain

Uffff... O.o

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danny@hille.dk

remix of d/20371 by u/danny@hille.dk

function u(t) {

for(Y=t*60,X=480;X--;x.fillStyle=R(o=333*C(C(S(t+X/33)-t+S(X/(25+T(X/19+Y/19))))),o*.7))x.fillRect(X*4,0,4,4)
x.drawImage(c,0,4)

Oct 24 2020 7:11 PM UTC

}// 128/140

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Follow the yellow brick road v2

u/joeytwiddle

#shiny
u/sigveseb

golden
u/danny@hille.dk

webgl version http://glslsandbox.com/e#69246.0

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solendil

function u(t) {

d=(V,D)=>x.fillRect(X,Y,X+Y+D&8,1,x.fillStyle=['#D23','#24A','#000','#FF0'][0x66ba6545>>(V>>5&15)*2&3])
for(X=2e3;X--;d(X,0))d(Y=frame,4)

Oct 23 2020 9:57 AM UTC

}// 137/140

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Four colours tartan uncompressed and full-res ! Thx Pavel !

u/danny@hille.dk

nicely done sir 🧐
u/pavel

Beautiful!
u/Xen

love it!
u/pavel

I shaved off 12 more chars for(i=4e3;X=--i>>1;x.fillRect(X,Y,1,X+Y+8*i&8))Y=60*t,x.fillStyle=['#D23','#24A',R(),'#FF0'][0x66ba6545>>((i%2?Y:X)/16&30)&3]

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solendil

function u(t) {

eval(unescape(escape`𪑦𚀡𭀩𮰊𨰮𭱩𩁴𪀽𝐱𜠊𩀽𚁖𛁄𚐽🡻𮀮𩡩𫁬𤱴𮑬𩐽𦰧𬡥𩀧𛀧𘰰𜀰𙰬𙰣𡡆𜀧𧑛𙰰𜀰𜀱𜀰𜀰𜐱𜐲𜐱𜐧𦰨𥠾🠳𚐥𜐶𧑝𞰨𦀫𦐫𡀩𙐵🀳🱸𛡦𪑬𫁒𩑣𭀨𦀬𦐬𜐬𜐩𞠰𯐊𩡯𬠨𦀽𝐱𜠻𦀭𛐻𚑦𫱲𚁙🐲𞀸𞱙𛐭𞰩𩀨𦐬𜠩𛁤𚁘𛀰𚑽𘀊`.replace(/uD./g,'')))

Oct 22 2020 1:22 PM UTC

}// 131/140

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Nemo me impune lacessit

u/solendil

Look into the code: it's easy to generate your own Tartan : ['red','#000','#FF0']['0000100001112111'[(V>>2)%16]
u/Xen

nicely done!!!

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rodrigo.siqueira

remix of d/20301 by u/rodrigo.siqueira

function u(t) {

f=(X,Y,n=0)=>X*X>4?n:f(2*X*Y-.7,T(Y*Y-X*X),n+1)
for(i=w=2e3;i--;x.fillRect(i,t*60,1,火))
x.fillStyle=R(火=f(i/w,t/28-.1)**1.6,火/6)

Oct 20 2020 12:48 PM UTC

}// 128/140

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Spiral of Fire (chinese dragon skin) #fractal #spiral

u/lionleaf

#waitforit This is insane! Super cool
u/Parasolian

Very nice. How to do this? https://jljulienleonard.wordpress.com/
u/rodrigo.siqueira

#dragon

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anotherkitten

remix of d/20280 by u/anotherkitten

function u(t) {

x.beginPath(c.width|=X=Y=Z=0.004)
for(i=2e3;i--;x.lineTo(960+(Z*S(t)+X*C(t))*i*99,540+Y*i*49))X+=Y*Z+Y,Y+=Y*Y-X*X-Z-X,Z+=-Z*Y*X+Y
x.stroke()

Oct 16 2020 10:09 PM UTC

}// 140/140

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mind melter orbit

u/MAxSaL

Damn, Dwitter is on fire! Cool dweet after cool dweet!

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Tangil

function u(t) {

for(c.width|=i=0;i<400;i++)x.fillStyle=`hsl(${30*C(i)} 99%${S(i*t/99)*99}%`,x.fillRect(960+99*C(i*t/99),540+500*C(i),12,12)

Oct 16 2020 3:07 PM UTC

}// 123/140

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My first dweet :D

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solendil

function u(t) {

c.style.transform=`rotate3d(1,1,1,${t*60}deg)`
c.style.filter='invert() blur(2px)'
x.font='bold 270px arial'
x.fillText('❤️DWITTER',99,600)

Oct 8 2020 7:53 AM UTC

}// 139/140

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A quick love card

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KilledByAPixel

remix of d/20168 by u/New_Core

function u(t) {

with(x)for(fillRect(0,0,w=2e3,i=1080);i--;strokeRect(960-i,540-i,i*2,i*2))setLineDash([i]),strokeStyle=R(lineDashOffset=(w+i*t)%i-w,i,i/3)

Oct 3 2020 5:18 AM UTC

}// 138/140

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u/New_Core

set linedash to i/3 ;)
u/KilledByAPixel

ah yeah that is better
u/joeytwiddle

For a Xen dweet, set linedash to i/t/t ;)

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