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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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

Show more comments…
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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danny@hille.dk

remix of d/23577 by u/rodrigo.siqueira

function u(t) {

eval(unescape(escape`󢜽󫭥󭼠󢝭󨝧󩝄󨝴󨜨󨼮󭽩󩍴󪌽󭼽󜼰󜌬󭼩󞽦󫽲󚍩󟝷󚬱󞜰󞽩󛜭󞼩󦜽󪜯󭼯󞜭󞜬󬬽󚌨󦌽󚍩󙝷󚜯󞜭󜜷󚜪󦍼󦜪󦜩󛽷󛍉󛭤󨝴󨜮󬽥󭌨󦽋󟝔󚍙󛽲󛝴󚬲󝝞󦌯󬬩󚭙󚼱󝬪󚌲󚽓󚍴󚬳󚜩󛽲󛍋󛼳󛍋󛽲󛼶󝌬󭽝󛍩󚬴󚜻󮌮󬍵󭍉󫝡󩽥󡍡󭍡󚍉󛌰󛌰󚜻`.replace(/u../g,'')))

Aug 18 2021 9:52 PM UTC

}// 131/140

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unholy light remix

u/neimad

show off
u/Xen

Nicely done!
u/magna

AWESOME!
u/tomxor

Really cool effect, looks like some kind of rotating light and shadow or a hologram
u/danny@hille.dk

Thanks for the nice comments guys!

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rodrigo.siqueira

remix of d/23567 by u/danny@hille.dk

function u(t) {

eval(unescape(escape`󢜽󫭥󭼠󢝭󨝧󩝄󨝴󨜨󥼽󜼲󜌬󢌽󜜸󜜩󞽳󟝉󛭤󨝴󨜻󩭯󬬨󨼮󭽩󩍴󪌽󭼽󪜽󜼲󜌻󪜭󛜻󚝦󫽲󚍈󟜱󞌱󞽈󛜭󞽳󛭳󩝴󚍛󢼽󥌨󦜯󬭼󦌯󬬫󭌪󞜩󚭈󚼱󛽲󛽈󚭓󚍴󚜪󞌸󚭙󛍋󛼶󛌬󜬵󝝝󛍈󚭗󚬴󚽩󚬴󚜩󦜽󢌯󝼰󛍲󟜨󚍘󟝩󛼸󜌭󜬩󚭘󚽙󚭙󚜯󝜰󞽸󛭰󭝴󢝭󨝧󩝄󨝴󨜨󢜬󜌬󜌩`.replace(/u../g,'')))

Aug 16 2021 10:09 PM UTC

}// 139/140

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Sierpinski Pulsar Orbit #sierpinski

u/danny@hille.dk

Super cool - golfed a bit to center the pulsar I=new ImageData(c.width=i=W=320,h=181);for(s=I.data;i--;)for(H=h;H--;s.set([K=T(Y/r|X/r+t*9)*H+1/r/h*S(t*3)*W*H/16,K/6,,255],H*W*4+i*4))Y=1.3-H/70,r=((X=i/80-2)*X+Y*Y)/50;x.putImageData(I,0,0)
u/danny@hille.dk

better version: I=new ImageData(c.width=i=W=320,h=181);for(s=I.data;i--;)for(H=h;H--;s.set([K=T(Y/r|X/r+t*9)*H+1/r/h*(1+S(t*3))*W*3,K/6,,255],H*W*4+i*4))Y=1.3-H/70,r=((X=i/80-2)*X+Y*Y)/50;x.putImageData(I,0,0)
u/384.cz

nice

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tomxor

remix of d/23549 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𨐽𣑡𭁨𛡡𨡳𛁣𛡳𭁹𫁥𛡢𨑣𪱧𬡯𭑮𩀽𙰣𞐹𞐧𛁣𛡷𪑤𭁨𙠽𪐽𝀳𝐲𞱘🐱𛐨𭀫𪐯𜰲𚐥𜠬𦐽𛐭𪐯𜡥𜰻𮀮𩡩𫁬𤱴𮑬𩐽𚁩𧡩🠾𝠩𙠸🰧𬡥𩀧𞠧𘱦𩡦𙰬𮀮𩡩𫁬𤡥𨱴𚀶𝀪𚁘𛱲𚱡𚀲𛑴𙐴𚐫𜐩𛀹𝠭𝠴𚠨𦐯𬠫𨐨𤰨𭀩𚐩𛁫🐵𛱲𛐲𛁫𚐩𬠽𛐭𦐪𦐫𦀪𦀫𜐻`.replace(/u../g,'')))

Aug 13 2021 9:03 PM UTC

}// 140/140

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Smooth Colour #Amiga #Ball

Show more comments…
u/tomxor

If someone can squeeze in a hard shadow and a purple grid we will be done.
u/danny@hille.dk

Beautiful
u/danny@hille.dk

I distinctly remember the grid to be blue... but all the youtube videos shows it to be purple... I think it's a conspiracy :-)
u/ullo

i like
u/KilledByAPixel

dweetabase updated! https://dweetabase.3d2k.com/
u/tomxor

I can't find it now but I seem to remember reading about how emulated colours of amigas look different from real amiga video output. The emulators are probably just spitting out the RGB values and letting the host OS do the gamma etc. I suspect real amiga video output must have been a bit "coloured" which causes this difference.

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danny@hille.dk

remix of d/23547 by u/danny@hille.dk

function u(t) {

c.width=w=180;for(m=2e4;m--;x.fillRect(i,j,2,z))i=m%w,j=m/w,X=i/90-1,Y=j/90-.6,r=X*X+Y*Y,d=r*9*(2+S(t*9)),z=S(X/d*9-9*C(t))*C(Y/d*9-7*S(t))

Aug 12 2021 6:12 PM UTC

}// 139/140

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Silly remix

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danny@hille.dk

function u(t) {

c.width=w=180;for(m=2e4;m--;x.fillRect(i,j,1,z))i=m%w,j=m/w,X=i/44-2,Y=j/44-1.1,r=X*X+Y*Y,d=r>1?1:C(r)*2,z=S(X/d*9-t*C(t)*5)*C(Y/d*9-t*S(t))

Aug 12 2021 5:55 PM UTC

}// 140/140

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moar ballz

u/cantelope

too much ballz
u/danny@hille.dk

Try not to think of it as too much ballz, try to think of it as too little fire, then you will realize there are no ballz...

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pavel

remix of d/23537 by u/KilledByAPixel

function u(t) {

for(c.width&=i=4352;Y=i--/2e3;x.fillRect(94+C(t/3)*94+i%64,80-80*Math.abs(S(t))+i/64,2*X/C(r=X*X+--Y*Y)-6*t&1^2*Y/C(r)-6&1,r<1))X=i%64/32-1

Aug 11 2021 8:39 PM UTC

}// 139/140

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Boing

u/DaSpider

That brings back memories.
u/DaSpider

#Amiga bouncing ball
u/tomxor

Nice!
u/tomxor

-1 char X=i/32%2-1

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