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.

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

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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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joeytwiddle

remix of d/27386 by u/joeytwiddle

function u(t) {

eval(unescape(escape`景爨椽挮睩摴栽ㄸ㐻椭ⴻ⥸⹦楬汒散琨㤰⬨∬㄰㔶㜻䐽㨼㬼䐾㰻㨸䑂㠶㐱㡀ㄯ⸱⼳㘿㝀剄䱛㴿慒呣䄼䡍假䄷㽄䭄䀵㩦䕃愹㥅䍆䜿㡉屜屜繊㡄繞繕㘹坶晗∮捨慲䍯摥䅴⡩⤭㌲⤪匨愽椭琩⼳ⰵ⭩ⱗ㴱⭃⡡⤬圩`.replace(/u([^D].)/g,'$1%')))

Apr 20 2023 6:04 PM UTC

}// 140/140

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M3DCotGLB

u/joeytwiddle

Minor refinement: Larger resolution so the dots are less noisy; linear index rather than sqrted.
u/deobfuscate

Now its ten times easier to see that its a meditating buddha.
u/Odog8

Holy crap
u/Xen

madness!

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KilledByAPixel

remix of d/27335 by u/KilledByAPixel

function u(t) {

for(X=960,Y=540,r=500,d=1,i=99;i--;X-=q*S(d*t),Y+=q*C(d*t))x.fillStyle=d++%2?R():'#fff',x.fill(x.arc(X,Y,r,~x.beginPath(),9)),q=r/5,r=r-q

Apr 3 2023 10:45 PM UTC

}// 137/140

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Circle Spinner 🌀

u/joeytwiddle

A #spiral with a ... twist!

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KilledByAPixel

function u(t) {

eval(unescape(escape`󠜽󚍘󛍙󛍲󛍄󟜱󛍩󟜲󚜽󟭻󩭯󬬨󮌮󩭩󫍬󤽴󮝬󩜽󡌥󜬿󤬨󚜺󙼣󩭦󩬧󛍸󛭦󪝬󫌨󮌮󨝲󨼨󦌬󦜬󬬬󯭸󛭢󩝧󪝮󤍡󭍨󚌩󛌹󚜩󞽩󛜭󞽷󟬲󙬦󠜨󦌭󡜪󤼨󡌪󭌩󛍙󚽅󚭃󚍄󚭴󚜬󭼬󡌫󜜩󚝖󟝲󛼳󛍅󟝩󟼭󥬺󬬭󥬬󭼽󪜿󬬭󥬺󥭽󒭁󚌹󝬰󛌵󝌰󛌵󜌰󚜻`.replace(/u../g,'')))

Apr 3 2023 8:20 PM UTC

}// 129/140

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Circular Recursion ☯

u/cantelope

9 chars lighter than previously! \o/
u/KilledByAPixel

after posting is when i usually get more ideas how to save space :)
u/vain

Very nice and cool looking fx/movements
u/tomxor

It's circles all the way down

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tomxor

remix of d/27317 by u/tomxor

function u(t) {

eval(unescape(escape`𩠽𬠽🡈𚁈𚁃𚁲𚐪𦐭𤰨𬠩𚡚𛁘𚐭𛠳𛁃𚁲𚐪𦠫𤰨𬠩𚡙𚐾𛠱𞱦𫱲𚁈👍𨑴𪀮𪁹𬁯𭀬𨰮𭱩𩁴𪀽𬀽𭰽𜐲𞀻𬀼𜑥𝀻𤠼𜐲𙡦𚀫𚱵𙐶𚱴𚐿𤠯🐮𞐶𞡸𛡦𪑬𫁒𩑣𭀨𬀥𭰬𬀫𚰯𭰬𤠯𞀬𤠽𭐽𜐩𚑘👰𛰶𝀥𜠭𜠫𭐥𝠯𜠮𝐬𦐽𬀯𞁥𜰭𛠶𛁚👒𛰸𛐮𝐻`.replace(/u../g,'')))

Apr 2 2023 11:48 AM UTC

}// 133/140

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Linked Toroids #sdf #chain

Show more comments…
u/magna

!!!!!!!
u/Joachim

Woooooow
u/vain

Just wow! Seems you are using the undocumented and hidden Init3DEngine() function ;-)
u/13thptr

What magna said.
u/deobfuscate

Wait, they're just torus?
u/deobfuscate

(pretend this isnt me): always has been :gun:
u/jdspugh

Amazing

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