Dweets awesomed by u/UEZ

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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Joachim

function u(t) {

eval(unescape(escape`󭽩󭍨󚍺󟝣󛭷󪝤󭍨󯌽󭌿󜌺󬌽󦽝󛍰󛭰󭝳󪌨󮽸󞭺󛍹󞬵󝌰󚼳󜌰󚭓󚌳󚭴󚝽󚜬󮌩󩭯󬬨󪜠󫽦󚍦󪝬󫍓󭍹󫍥󟜢󘼰󨭢󨬢󛍦󫽮󭌽󘬹󩝭󘍡󘬬󬭯󭍡󭍥󚍓󚍴󚜩󛍳󨝶󩜨󩭩󫍬󥍥󮍴󚌢󧍵󡌸󜽃󧍵󡍆󝽅󘬬󞜶󜌬󝜸󜌫󜼰󜌪󤼨󜼪󭌭󜬮󜬩󚜩󛍰󚜩󩭩󫍬󤭥󨽴󚍩󛭸󛜽󜬰󛍩󛭹󛌲󜌬󮬩`.replace(/u../g,'')))

Aug 31 2021 8:14 AM UTC

}// 140/140

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Message in a bottle!

u/danny@hille.dk

cute :-)
u/Joachim

#water #waves

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danny@hille.dk

remix of d/23661 by u/rodrigo.siqueira

function u(t) {

s=70,A=Z=a=b=t*.001;for(i=3e4;--i;t<4&&(x.fillRect(780+a*s,340+b*s,1,1),a=1.6-b+Math.abs(S(a)+a*1.022)))b=A,A=a

Aug 30 2021 6:09 PM UTC

}// 111/140

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tooth fary remix

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taupelink

remix of d/23648 by u/taupelink

function u(t) {

for(i=q=k=447;i--;x.fillRect(k*X,k+i/Y,-8*q/v,i*(Y-2)/v))f=i*t,X=f*f%7-1,Y=X*f%3-2,x.fillStyle=R(q*=C(X/6)/8-Y/4,i*S(X/2),q^=k,k/q*t),v=t**t

Aug 30 2021 4:04 AM UTC

}// 140/140

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d/23689

u/rep_movsd

This is superb
u/rfs

What is your process for making these? incredible
u/taupelink

thank you! lots and lots of trial and error, lately aided by https://capjs.3d2k.com/ I keep playing around with variations, e.g.: for the Y-coordinate, k+i*Y,k-i*Y,k+i/Y,k-i/Y each have a different effect
u/taupelink

for those unfamiliar with dwitter-style compact JS code: for a typical dweet of this type, each frame draws a bunch of rectangles. each rectangle has random coordinates for its upper left-hand corner. the RGBA (color and opacity) of the rectangle depends on those coordinates and on some other parameter that gets modified with each step. The dimensions of the rectangles shrink over time, thus adding finer-grained detail

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taupelink

remix of d/23666 by u/taupelink

function u(t) {

for(i=k=255;--i;x.fillRect(k*--X,630-i*Y,i*(q*q%t<t**-t),-q*Y*t))f=i*t,X=f*f%9,Y=S(X*f)*X,x.fillStyle=R(q=i*Y,q/=T(X/6)<Y?.9:-1.5,q^k,k/q/q)

Aug 29 2021 8:20 PM UTC

}// 140/140

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d/23688

u/aleamb

#impressionism

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Joachim

function u(t) {

eval(unescape(escape`󨼮󭽩󩍴󪍼󟝴󟼰󞭤󟝰󟝛󧜊󩌫󚼊󩌥󞜼󝬦󙭰󛭰󭝳󪌨󮽸󞬹󝬰󚽓󚍴󚜪󜬰󜌬󮜺󝜴󜌬󬼺󜜬󬬺󤼨󭌪󞜩󯜩󒭦󫽲󚍩󘍯󩬠󬌩󮽳󟝩󛭳󒭸󛭦󪝬󫍒󩝣󭌨󪜮󮌭󬼯󜬬󪜮󮜫󟝳󛼵󜌬󪜮󬼪󟜱󛬰󝜬󬼯󝌰󚜊󮌮󩭩󫍬󤭥󨽴󚍩󛭸󚽳󛽩󛭲󛍩󛭹󛝳󛍳󛼹󛍳󚜊󮌮󩭩󫍬󤭥󨽴󚌰󛌵󝌰󛍳󛌲󚝽`.replace(/u../g,'')))

Aug 28 2021 1:39 PM UTC

}// 140/140

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old, #infinite #road

u/Joachim

#perspective
u/rodrigo.siqueira

Almost a car #game. Better than Atari's Enduro.
u/vain

just wow!

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rodrigo.siqueira

remix of d/14641 by u/rodrigo.siqueira

function u(t) {

A=Z=a=b=-.1+t/15;s=77
for(i=2e4;--i;)x.fillStyle=R(a*45,b*25,S(b)*s),x.fillRect(780+a*s,310+b*s,.5,t<1),a=1.75-b+Math.abs(S(a)+a),b=A,A=a

Aug 27 2021 5:43 PM UTC

}// 137/140

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The Gingerbread Man #attractor is a man. A small remix revealed previously hidden details. #gingerbreadman

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u/katkip

looks like a bear haha
u/tomxor

aww maan!
u/danny@hille.dk

slightly inappropriate owlbear - love it😃
u/tomxor

lol, I was enjoying this innocently until you said that.
u/sigveseb

This one rulez!
u/danny@hille.dk

It really is quite awesome!!! but what is Baymax doing in a fractal?

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rodrigo.siqueira

remix of d/23638 by u/TGY

function u(t) {

with(x)for(translate(t?0:m=986,t?0:540),i=m;i--;fillRect(1/i,z-230,6e4/z,8))fillStyle=R(z=2e4/((i*6+t*50)%m),z*S(t/2),z*2),rotate(T-(T=i-t))

Aug 24 2021 1:59 PM UTC

}// 140/140

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Gravity Orbe

u/TGY

astonishing
u/sigveseb

wow, nice!

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Joachim

function u(t) {

eval(unescape(escape`󘝴󟽰󟝛󧜺󬌮󭝮󬽨󪝦󭌨󮽸󞬹󝬰󚽓󚍴󚜪󞜹󛍹󞬵󝌰󚽃󚍴󚜪󝜰󛍳󞬱󛍣󞭒󚍓󚍴󚬹󚜪󜜵󜌬󥌨󭌪󞜩󚬸󜌬󜌩󯜩󒭦󫽲󚍩󘍯󩬠󬌩󮽩󛭳󟬱󞜹󞜿󬌮󬍯󬌨󚜺󮌮󫍩󫭥󥽩󩍴󪌽󪜮󬼯󞜊󮌮󬽴󬭯󪽥󤽴󮝬󩜽󪜮󨼊󮌮󬽴󬭯󪽥󤭥󨽴󚍩󛭸󛝩󛭳󛼲󛍩󛭹󛝩󛭳󛼲󛍩󛭳󚬽󜜮󜌳󛍩󛭳󚝽`.replace(/u../g,'')))

Aug 24 2021 1:37 PM UTC

}// 140/140

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#Tunnel Of Power

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TGY

remix of d/3143 by u/nystrand

function u(t) {

with(x)for(translate(t?0:m=883,t?0:540),i=m;i--;fillRect(-m,i+z,3e3,8+z/22))fillStyle=R(z=m/((i*i-t*9)%m),z*2,z*6,rotate(-T+(T=i+S(t/9))))

Aug 23 2021 10:57 PM UTC

}// 138/140

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Do you remember original spider-man opening titles?

u/magna

Very cool remix!
u/andrea270872

nice and geometric :)
u/sigveseb

sweet!

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danny@hille.dk

function u(t) {

eval(unescape(escape`󭍼󯌨󢜽󫭥󭼠󢝭󨝧󩝄󨝴󨜨󨼮󭽩󩍴󪌽󭼽󜬵󝜬󪌽󜜶󜌩󚜻󩭯󬬨󪜽󭼪󪌻󪜭󛜻󢜮󩍡󭍡󛭳󩝴󚍛󛌬󚍰󚽴󚭷󙭷󧭷󚭡󚬱󛬶󚽷󛝴󚭷󙭷󚜭󬌯󞜬󭽝󛍩󚬴󚜩󨜽󣝡󭍨󛭡󭍡󫬲󚍘󟜭󛬵󚼱󚬨󪜥󭼩󛽷󛍙󟜭󛬴󚼲󚭩󛼱󩜵󚜬󬌽󭼯󚍙󚭙󚽘󚭘󚜪󚬮󝜪󛬵󞽸󛭰󭝴󢝭󨝧󩝄󨝴󨜨󢜬󜌬󜌩`.replace(/u../g,'')))

Aug 19 2021 9:08 PM UTC

}// 140/140

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Second attempt at an old school tunnel effect

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u/danny@hille.dk

Uncompressed code: t||(I=new ImageData(c.width=w=255,h=160));for(i=w*h;i--;I.data.set([,,(p+t*w&w^w*a*1.6+w-t*w&w)-p/9,w],i*4))a=Math.atan2(X=-.5+1*(i%w)/w,Y=-.4+2*i/1e5),p=w/(Y*Y+X*X)**.5*.5;x.putImageData(I,0,0)
u/danny@hille.dk

#tunnel
u/danny@hille.dk

first attempt: d/23462
u/danny@hille.dk

Javascript garbage collector is struggling, when you create a new ImageData at each run, which results in some nasty stuttering. t||(I=new ImageData... fixes this issue
u/magna

This worked for me: I=x.getImageData(0,0,c.width=w=255,h=160) (no need for t|| check)
u/danny@hille.dk

u/magna while getImageData does not hit the garbage collector quite as hard, it takes about 1.3 times longer to execute, wich amounts to 53 fps, while t||(I=new ImageData... runs at a constant 60 fps (on my old 2014 macbook pro :-))

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