Dweets awesomed by u/IV

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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pavel

remix of d/701 by u/sigveseb

function u(t) {

for(x[f='fillRect'](i=8,0,2e3,2e3);w=3*i--;)for(x.fillStyle=R(s=666/i,s/2,s/4),k=w*w;b=k--/w|0;a+b&1&&x[f]((a-t%2)*s,(b-2+S(t))*s,s,s))a=k%w

Mar 4 2019 8:47 PM UTC

}// 140/140

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More layers and a black background #improved

u/sigveseb

Nice!

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pavel

remix of d/12355 by u/cantelope

function u(t) {

for(i=c.width|=h=355/226,w=960;Y=w-i--**h%w*2;x.fillRect(w+S(i+t)*w*r/z,540+Y/z,s=99/z/z,s))r=(Y*Y<8e5||Y%1)/S(i%h+h/2),z=4-S(t)-r*C(i+t)

Feb 14 2019 11:21 PM UTC

}// 137/140

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#uncompressed

Show more comments…
u/pavel

The base code draws a tube. 1/S(i%h+h/2) radius makes the tube have a square cross section.
u/pavel

(Y*Y<8e5||Y%1) randomizes the radius between 0 and 1 near top and bottom.
u/pavel

Err, between -1 and 1, and this makes the top and bottom panels.
u/cantelope

I see some gathering of points in the middle of the top and bottom panels, but other than that, a faithful reproduction. kudos!
u/pavel

I use polar coordinates, even though the radius is uniformly random that results in more dots near the middle :/
u/iverjo

#cube #d3

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tomxor

function u(t) {

eval(unescape(escape`眽㤰Ⱪ㵬㵷⩷⼵ⱴ㴱⭴⩴⼱㈻景爨砮晩汬剥捴⠰ⰰⱣ⹷楤瑨㵷⨲ⱷ⨲⤻椭ⴻ砮晩汬剥捴⡘⨶ⱙ⨶ⰱ⭋ⰵ⤩堽椥眯㌬夽椯眬䘽琭椯氬䬽ㄭ䘥ㄬ䬪㴨奞堭繆⤯㈷┱⭋⨪㠬砮晩汬却祬攽恨獬⠤筩⨱㈰紬㤹┬⑻䬪㤹紥⥠`.replace(/u(..)/g,"$1%")))

Feb 14 2019 12:46 AM UTC

}// 140/140

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Trinitron #crt #scanline #fractal

u/tomxor

Finally resorted to UTF8. This is a reasonably accurate slow motion aperture grille scanline animation... Although if run very slow you will see it's not simulating 3 electron beams. t=fps (scanline) w=width (subpixels) the later must be a multiple of 3 and 5. Use X, Y and floored F to plugin your own fractal!
u/tomxor

Uncompressed: w=90,i=l=w*w/5,t=1+t*t/12; for(x.fillRect(0,0,c.width=w*2,w*2);i--;x.fillRect(X*6,Y*6,1+K,5)) X=i%w/3,Y=i/w|0,F=t-i/l,K=1-F%1,K*=(Y^X-~F)/27%1+K**8, x.fillStyle=hsl(${i*120},99%,${K*99}%)
u/sigveseb

Kick-ass!
u/C010011012

bypassing the character limit I see using unicode escapements and regex u r very clever

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SMON

remix of d/12066 by u/thorbear

function u(t) {

t?0:z=y=c=a=1.4,b=1.56,d=-6.56,x.globalAlpha=.01;
for(i=2e4;--i;)n=d*S(a*z)-S(b*y),y=c*C(a*z)+C(b*y),z=n,x.fillRect(z*125+950,y*200+500,4,4)

Feb 1 2019 1:48 PM UTC

}// 140/140

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Okay, now with the original parameters!

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pavel

remix of d/11963 by u/cantelope

function u(t) {

for(x.fillRect(0,0,i=2e3,i);Q=S(q=--i*i);x.clearRect(960*(z+S(b)*3+S(p)*Q)/z,540+960*(C(q)-C(b+t))/z,s=99/z/z,s))z=6+C(b=i%6+t)*3+C(p=i+t)*Q

Jan 26 2019 8:47 PM UTC

}// 140/140

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#uncompressed in black and white

Show more comments…
u/adaq

coolio
u/cantelope

(╯°□°）╯︵ ┻━┻
u/cantelope

this one seems to outperform my original, probably due to all the color calls in mine. One thing I haven't been able to figure out is why the same code performs better on codegolf.tk than dwitter. Not trying to advertise, but it's true and it was just an accidental product of how it was made i guess. E.g. compare d/11913 to https://codegolf.tk/a/366 The code is identical, but on my computer the latter runs visibly smoother. ¯\_(ツ)_/¯ If any plucky ducks want to compare sources, the frontend of codegolf.tk is here https://github.com/srmcgann/codegolf2.0, and the backend: https://github.com/srmcgann/codegolf/blob/ma…
u/rnbw

this is just a wonder to behold
u/joeytwiddle

It's worth investigating cantelope. Someone reported it here: https://github.com/lionleaf/dwitter/issues/4… How can we display framerate on CodeGolf.tk?
u/f8f82804

#d3 #perspective #model

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metamero

remix of d/11675 by u/metamero

function u(t) {

t?x.lineTo(m+=p,n+=q,a=X-m,b=Y-n,p+=a/=d=a*a/k+b*b/k,q+=b/d,x.stroke()):(Y=m=X=k=480,n=p=q=4,onclick=e=>{f=4*k/innerWidth;X=f*e.x;Y=f*e.y})

Jan 7 2019 11:07 PM UTC

}// 139/140

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drawing orbits #interactive! click to set atractor : 139B #gravity #orbit #physics

u/katkip

I love this one!
u/katkip

I love this one!

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katkip

function u(t) {

c.width*=1;x.lineWidth=9;
for(j=20;j--;)x.beginPath(),x.arc(960,540,26*j,0,7),x.arc(960+300*C(j**3+t),540+300*S(j*j+t),5*j,0,7),x.stroke()

Dec 16 2018 3:06 PM UTC

}// 138/140

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Trajectories

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ETHproductions

function u(t) {

eval(unescape(escape`景爨挮睩摴栦㵩㴭ㄷ㭩⬫㰱㌻⥦潲⡪㴭ㄷ㭪⬫㰱㌻砮晩汬剥捴⠨ㄵ⭱⨨樭椩⤪㘴⭓⡴⨴⤪搬⠱㔫焪⡩⭪⤩⨴〫䌨琪㐩⩤ⰹⰹ⤩娽椾〦樾〿〺樼椿樺椬堽樭娬夽椭娬焽⴨堼㔦夼㔦ⵚ㰵⥼ㄬ搽焪㐪⡘⭙ⵚⴶ⤫㈴`.replace(/u(..)/g,"$1%")))

Dec 7 2018 7:08 PM UTC

}// 138/140

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#cube in a corner

u/ETHproductions

Based on a tweet which I've just realized is *not* by beesandbombs: https://twitter.com/jn3008_/status/107080665…
u/katkip

This is awesome
u/katkip

uncompressed: for(c.width&=i=-17;i++<13;)for(j=-17;j++<13;x.fillRect((15+q*(j-i))*64+S(t*4)*d,(15+q*(i+j))*40+C(t*4)*d,9,9))Z=i>0&j>0?0:j<i?j:i,X=j-Z,Y=i-Z,q=-(X<5&Y<5&-Z<5)|1,d=q*4*(X+Y-Z-6)+24
u/katkip

#illusion
u/joeytwiddle

#form_from_motion

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katkip

function u(t) {

x.font='10in"';x.fillText("👾",470+S(t*20)*400,900);x.drawImage(c,-50,-50,2020,1180);x.globalAlpha=t/9;x.fillText('err0r',0,666+S(t*99)*2e3)

Nov 25 2018 9:08 AM UTC

}// 139/140

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Works best on firefox and where the emoji is visible #invaders #glitch

u/joeytwiddle

Other way round for me! Blur on Firefox, visible on Chrome. Linux

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rodrigo.siqueira

function u(t) {

c.width^=0;x.fillStyle="#258",N=800;M=N-S(t*4)*9
x.font='2in"'
for(-1,i=99;i--;)x.fillRect(i*21,0,80,N+S(i/3+S(t)*4)*9)
x.fillText('🏄',M,M)

Nov 25 2018 2:09 AM UTC

}// 139/140

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Surf day

dwitter.net | IV (4418)