Dweets awesomed by u/Odog8

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: #Food

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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,'')))

Jun 15 2023 3:46 AM UTC

}// 140/140

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VHS 📼 #default

u/neimad

love it
u/magna

AMAZING
u/tomxor

haha, brilliant!
u/DataMeta

sweeet

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tomxor

remix of d/20436 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪀽𠐽𜐲𞀻𠐻𚁘𧡒𚐥𝰾𜐿𤠫🐮𜀱𞡔𚰫🀴𞀿𮀮𩡩𫁬𤡥𨱴𚁁𛑺𚡵𚠨𤠪𞀦𝰿𛐳𞠳𚐬𜰶𚱔𛱒𛑺𚡃𚠳𛁍𨑴𪀮𪁹𬁯𭀨𭐬𠰽𥀯𞐶𚱓𚁴𚐯𜠩𚠨𜐭𛠶𛱒𚐫𮠯𜠬𜠯𤠩𞠨𭐽𛐭𠐯𝠴𛐱𛁒🐱𛁔🐭𝀸𚐩𦀽𤠪𭐫𭀫𜠬𮠽𚁘𚱒𚐪𜐶𛁺🐨𮠭𥁞𥀫𮠩𙐷🠵`.replace(/u../g,'')))

Jun 7 2023 12:44 AM UTC

}// 139/140

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#DooM 2.5D #bumpmap textures

u/tomxor

Same concept of XY displacement, but X displacement needs to be inverted when a surface is aligned along Z to give the illusion of the light comming from the observer. Completely unrealistic lighting tricks.
u/deobfuscate

I don't feel like I can make any more dweets with so many good ones like this roaming around.
u/danny@hille.dk

This is just out of this world. #witchcraft
u/vain

Just f*cking amazing! 😎

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tomxor

function u(t) {

for(w=c.width&=i=10368;X=--i%w,Y=i/w;x.fillRect(X+z*R,Y+z*T,Math.hypot(R=X/64-1-S(t),T=Y/64-.6-C(t/3))+!z/2,1))z=(w+X/3-Y/3^Y/3+X/3)%21>18

Jun 6 2023 5:58 PM UTC

}// 138/140

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#PCB #trace #bumpmap

u/tomxor

Getting on the bump train with a different method. This one displaces X and Y in proportion to distance from light source, which creates pixel gaps on one side (specular highlights), and overlapping pixels on the opposite (becoming shadows).
u/danny@hille.dk

wow thats chrisp!

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rodrigo.siqueira

remix of d/27925 by u/KilledByAPixel

function u(t) {

c.width=355
for(i=w=127;i--;)for(j=200;j--;)x.fillRect(i+114,j,1,((w*(C(a=Math.atan2(X=i/w-.5,Y=j/w-.8))/Y/6+t)^w*(S(X+Y)/Y/6))&w)/w*C(a/t))

Jun 6 2023 3:16 PM UTC

}// 140/140

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The Tunnel #tunnel

u/tomxor

For some reason this reminds me of those weird halfpipe levels on sonic2 on the megadrive https://youtu.be/8cr1rqVcIhA?t=484

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KilledByAPixel

remix of d/27866 by u/@noel

function u(t) {

for(c.width=i=w=255;i--;)for(j=142;j--;)x.fillRect(i,j,1,((w*(C(a=Math.atan2(X=2*i/w-1,Y=2*j/w-.6))/(d=(X*X+Y*Y)**.5)+t)^w*(S(a)/d+t))&w)/w)

Jun 6 2023 5:16 AM UTC

}// 140/140

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Projection Faster and Uncompressed

u/@noel

I love this one and I follow the logic, until the z & w performing. I know it's a bitwise AND operation on z and w, but I don't actually grasp it.
u/@noel

I mean on this one: x.fillRect(i, j, 1, (z & w) / w)
u/joeytwiddle

Here (z & w) / w is the height of the rectangle. If that height is less than 1, then the canvas anti-aliasing renders a grey pixel, instead of a black one.
u/@noel

Thanks u/joeytwiddle Now I think I get it. (z & w) ensures that the value of z remains within the range of the canvas width 'w', and the dividing by w normalizes the height value. Great trick!

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rodrigo.siqueira

remix of d/27874 by u/danny@hille.dk

function u(t) {

w=c.width=128;for(i=1e4;i--;)x.fillStyle=R(x.fillRect(X=i%w,Y=i/w-5,Math.min(s=Math.hypot(i%2*30+X-80-S(t)*9,Y-40)/9,(X^Y+t*60)%7),s),Y/s)

Jun 3 2023 11:25 PM UTC

}// 138/140

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Diving deeper

u/danny@hille.dk

Hehehe-)
u/tomxor

I'm down with this

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rodrigo.siqueira

remix of d/27826 by u/rodrigo.siqueira

function u(t) {

for(x.fillRect(0,0,w=2e3,w),i=1e4;i--;x.clearRect(960+C(p=T(i*i-t/9))/(Z=(i/S(t+i+p)+i*p*i/320)/i/i),540+S(p)/Z,K=3*S(i),K))x.globalAlpha=.1

May 25 2023 12:50 AM UTC

}// 140/140

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Galactic knot

u/deobfuscate

The universe gets pretty bored sometimes...
u/Joachim

Wow!!
u/joeytwiddle

There is a region of space they all avoid, except some of them occasionally don't!

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Odog8

remix of d/27501 by u/Odog8

function u(t) {

a=t%1>.1?[...a.map((X,i)=>Q[x.fillRect(i,A,1,X)|a[i-1]|4*a[i+1]|2*a[i]]),0]:[A=1,Q=[...Array(c.width=99)].map(x=>.5>Math.random())];A++

May 9 2023 8:15 PM UTC

}// 135/140

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Missed an obvious golf

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Odog8

function u(t) {

a=t%1>.1?[...a.map((X,i)=>Q[x.fillRect(i,A,1,X)|a[i-1]|4*a[i+1]|2*a[i]]),0]:[A=1,Q=[...Array(8),c.width=99].map(x=>.5>Math.random())];A++

May 9 2023 8:13 PM UTC

}// 137/140

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Plays random cellular automata

u/Odog8

im thinking about using substr
u/joeytwiddle

Why not run them in order? Are the early ones boring? Maybe boring for someone quite familiar with them.
u/Odog8

Kind of, a lot are just straight lines when starting from a single cell at the start
u/Odog8

Also more fun this way ;)
u/joeytwiddle

Understood!

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