Dweets awesomed by u/danny@hille.dk

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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lerc

remix of d/20904 by u/lerc

function u(t) {

eval(unescape(escape`𭁼𯀨𨰮𭱩𩁴𪀽𝀰𜀩𒡬👡🐾𚁸𛡤𬡡𭱉𫑡𩱥𚁣𛀭𭰬𛑨𚐬𤰨𭀪𨐩𚰱𚐊𮀮𬱥𭁔𬡡𫡳𩡯𬡭𚁁🐱𛠰𜐬𠠽𛠰𜐬𛑂𛁁𛁷🐲𜀰𚱓𚁴𚐪𚁑🐴𜀩𛁨🐹𞐫𠰨𭀩𚡑𚐊𮀮𩡩𫁬𤱴𮑬𩐽𤠨𜀬𜀬𪀪𫀨𜐮𝐩𚐊𮀮𩡩𫁬𤡥𨱴𚁵🐨𫀨𜠮𜐩𛑬𚀱𚐩𚡑𛀭𭐬𝀬𝀩𒠻`.replace(/u../g,'')))

Aug 16 2021 1:49 PM UTC

}// 135/140

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Night Flight

u/rep_movsd

The initial part looks like a rock

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lerc

remix of d/20936 by u/lerc

function u(t) {

eval(unescape(escape`𭁼𯀨𫀽𦱝𚐊𮀮𩡩𫁬𤡥𨱴𚁮🐰𛀰𛁱🐲𩐳𛁱𛁸𛡦𪑬𫁓𭁹𫁥🐢𘰰𜀰𜐢𚐊𩡯𬠨𦱛𫑝𛁛𬁝𧑯𩠊𫀽𦰮𛠮𫀮𬱬𪑣𩐨𛐹𞐩𛁛𦱑🐹𝠰𛀰𧐬𦱑𛀭𜐲𧑝𧐮𫑡𬀨𬀽🡰𛡭𨑰𚀨𦱰𛁭𧐩🐾𦱰𚱭𛀨𫐫𠰨𬐫👰𚐩𚠮𞐷𧐩𚐩𮀮𨱬𩑡𬡒𩑣𭀨𫐬𬀬𫠬𫠫🐰𛠱𚐊`.replace(/u../g,'')))

Aug 16 2021 11:57 AM UTC

}// 135/140

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Firework

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rodrigo.siqueira

remix of d/23561 by u/rodrigo.siqueira

function u(t) {

for(Y=t/9-1,i=2e3;i--;x.fillRect(i,60*t,1,1))r=((X=i/540-1.8)*X+Y*Y-.5)/99,x.fillStyle=R(K=T(Y/r|X/r)*3+Math.random()*9,0,K/r/20)

Aug 16 2021 3:32 AM UTC

}// 129/140

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UV emissions from the Sierpinski sphere #sierpinski

u/rep_movsd

Sphere of doom
u/cantelope

#slowdraw

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rodrigo.siqueira

remix of d/23439 by u/rodrigo.siqueira

function u(t) {

for(Y=t/9-1,i=2e3;i--;x.fillRect(i,60*t,1,1))r=((X=i/540-1.8)*X+Y*Y)/99,x.fillStyle=`hsl(${K=T(Y/r|X/r)/9+Math.random()*9},5%,${300-K/r}%`

Aug 15 2021 6:18 PM UTC

}// 138/140

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Sierpinski vortex #sierpinski

u/danny@hille.dk

Looks pretty dope

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taupelink

remix of d/23379 by u/taupelink

function u(t) {

for(i=q=k=720;--i;x.fillRect(k*X,k/Y,-q*q/3**t,-p*p/3**t))f=i*t,X=f*f%3,Y=X*f%1,x.fillStyle=R(q%=S(X+q%Y)*i,q*=1+S(p=5e4/q)*Y,q/=Y**.5,p/q)

Aug 15 2021 3:39 PM UTC

}// 139/140

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d/23559

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mxfh

remix of d/23551 by u/mxfh

function u(t) {

I=new ImageData(w=2048,w)
b=new Int32Array(I.data.buffer)
for(i=3e6;i--;b[i]=(i-Y&Y+i)*-t/i%i<<22)Y=i*w
x.putImageData(I,0,0)

Aug 15 2021 2:06 AM UTC

}// 125/140

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https://www.dwitter.net/d/23557 so with some space for setting up other buffer view, it speeds things up when treating rgba Uint8Clamped Array as single 32bit value

u/mxfh

wondering if we could store that buffer somwhere to do truly iterative fractal stuff
u/taupelink

trippy!

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danny@hille.dk

function u(t) {

c.width=w=256
d=new ImageData(w,w)
for(j=0;j<w*w*4;j+=4)d.data.set([0,(w*t+j/8)%w,(j%w&64)^(j/w&64)&&w,w],j)
x.putImageData(d,0,0)

Aug 14 2021 6:55 PM UTC

}// 130/140

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test Imagedata.set as mentioned in d/23444 by u/mxfh

u/danny@hille.dk

First I could not find any documentation on the set method. but then later i was reading something about Uint8Array, and low and behold: set is a part of the javascript typedArray https://developer.mozilla.org/en-US/docs/Web…

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danny@hille.dk

function u(t) {

c.width|=0,x.font='3in i',x.fillText('🦆',2e3-t*(o=800)%3e3,o-S(t*3%3.2)*o+250)

Aug 14 2021 4:13 PM UTC

}// 78/140

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Why did the duck cross the road? To prove he wasn’t chicken.

u/danny@hille.dk

i just learned the bounce trick from pavels comment in this dweet d/23549

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𫐽𜀻𚰫𫐼𝰸𞰩𤀽𭀿𦰮𛠮𤀬𦰹𝀰𛀵𜀰𛁓𚁰🐨𫐭𭀥𞐩𚠪𜠩𛁃𚁰𚐬𜁝𧐺𦱝𞱐𛡭𨑰𚁶🐾𮀮𩡩𫁬𤡥𨱴𚁶𦰰𧐫👶𦰲𧐯🐮𞐵𛁶𦰱𧐫👶𦰳𧐯🐮𞐵𛁭𛁭𛁸𛡦𪑬𫁓𭁹𫁥👠𪁳𫁡𚀤𮱰𚠪𜰯𜱥𝰪𚁶𦰴𧐫𚰩𯐬𞐰𙐬𝐰𙐬𛠰𜑠𚐩𛁐👐𛡦𪑬𭁥𬠨𭠽🡶𦰴𧐼𫐩`.replace(/u../g,'')))

Aug 14 2021 4:13 PM UTC

}// 140/140

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u/danny@hille.dk

i like it, althoug it makes my brain hurt
u/cantelope

that's just weakness leaving the body
u/cantelope

:D
u/cantelope

added music (remix of aurora) https://code.whitehotrobot.com/d/2w9g
u/cantelope

(temp mirror for above link) https://code.dweet.net/d/2w9g

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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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