Dweets awesomed by u/magna

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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thorbear

function u(t) {

a=b=t;s=400;x.globalAlpha=.05;for(i=2e3;--i;)x.fillStyle=R(s*a*b,0,i),x.fillRect(960+a*s,540+b*s,5,5),a=S(2*b)-C(5*a),b=S(-2*a)-C(3*b)

Jan 30 2019 11:52 PM UTC

}// 134/140

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dejong

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u/rodrigo.siqueira

Great!! This is the famous Clifford Pickover Attractor!! It appears in his book Chaos in Wonderland (by the way, I am cited in this book as a fractal poet). Many beautiful variations of this Attractor can be made by changing only 4 parameters. #fractal
u/katkip

I don't understand
u/SMON

I wonder what's going on here. Is there any way to understand this? :)
u/thorbear

Didnt know about Clifford. Used the formulae on P.Bourkes page: http://paulbourke.net/fractals/peterdejong/
u/thorbear

He also has one on the Clifford attractor under /fractals/clifford
u/robbyg

Well done with the #attractor -- I didn't get color in mine: https://www.dwitter.net/d/8503
u/rodrigo.siqueira

Similar to #pickover attractor

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yokljo

function u(t) {

c.width|=0
for(j=0;j<20;j++)for(g=S(j*j*400)*900+940,i=99;i>-120;i--)x.fillRect(i<0?g:g+S(i/3+t*8)*i/2,i*5+600,90,5)

Jan 30 2019 11:07 PM UTC

}// 116/140

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u/joeytwiddle

Nice! #water I tried g+S(1e3/i+t*8)*i/2

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mxfh

function u(t) {

for(i=h=700;i-->-h;x.fillStyle=R(u=i>0?(h+i*t)%i*5:h))x.fillRect(u?960-i:0,i+h,u?i*2:2e3,1)

Jan 30 2019 5:15 AM UTC

}// 91/140

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katkip

function u(t) {

x.globalAlpha=.01;t/=9;for(i=50;i--;)for(j=50;j--;)x.fillStyle=R(i*5,0,j*5),x.fillRect(960+C(i+t)*j*999/j,540+S(i+t*i)*999/j,20,20)

Jan 29 2019 6:01 PM UTC

}// 131/140

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Energy Ray

u/mxfh

with alpha R it's down to 117, or is there a visual difference?
u/katkip

Idk, random coding

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metamero

remix of d/11785 by u/metamero

function u(t) {

i=(t-2)*2|0
x.fillStyle=i^4&i?i>4?R():'#F7A8B8':'#55CDFC'
i^2&&x.fillRect(0,216*i,2e3,216)
x.fillText((x.font='499px ⚧')[6],766,716)

Jan 29 2019 4:10 PM UTC

}// 132/140

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Dia da Visibilidade Trans #pride

u/metamero

today is Transgender Pride Day on Brasil

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rodrigo.siqueira

remix of d/11965 by u/pavel

function u(t) {

for(x.fillRect(0,0,i=3e3,i);Q=S(--i*i);x.clearRect(960+150*(S(b)*4+S(i+t)*Q),540+150*(C(i*i)-(t%4>2?T(b+t):S(b+t))),4,4))b=i%6+t+(t%2>1?0:i)

Jan 28 2019 2:40 PM UTC

}// 140/140

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Torus, spheres, flow and bubbles

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u/rnbw

now THIS is a demo!
u/katkip

Yeah he win
u/13thptr

woah
u/joeytwiddle

Superb! Golf the end with i*(t%2>1) or i*!(t&1)
u/rodrigo.siqueira

Thanks @joeytwiddle for the golf trick. i*(t&1) also works and it's even shorter. And I found that t%4>2?... can be converted to t&2?... It works as a counter to change the function each 2 seconds.
u/yonatan

Also, since T and S take the same arguments (t%4>2?T(b+t):S(b+t)) can be (t&2?T:S)(b+t)
u/lionleaf

Wow! Now we're talking
u/vain

Wow, three fx in this tiny code? Great!

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katkip

remix of d/11977 by u/katkip

function u(t) {

c.width*=1;for(i=900;i--;)k=S(t+i)*t,l=500-C(k-i)*500,x.fillRect(960+C(k)*l,540+S(k)*l,10,10)

Jan 28 2019 12:50 PM UTC

}// 93/140

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White hole. I rarely wash myself because I'm lazy :(

u/katkip

Haha you guys liked this dweet only to be the first comment more visible lmao?

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f8f82804

remix of d/11962 by u/f8f82804

function u(t) {

c.width=32;d=new Date/1e3%86400;j=120;do{"縿Ϡ庽纵粇皷皿簡线粧碾⪿䘮㨿嚿ᒿ".charCodeAt(d&15)&1<<--j%20&&x.fillRect(2+j/5|0,j%5+7,1,1)}while(j%20|0||(d>>=4))

Jan 27 2019 11:04 PM UTC

}// 140/140

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#hex #clock -- shows count of seconds since #UTC midnight (ignoring leap second corrections since epoch)

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joeytwiddle

remix of d/11968 by u/joeytwiddle

function u(t) {

c.width|=0;o=t*7%15.7-22/7;j=o>0;w=(99-j*80-j*o*1.6)*S(!j*o+j*o*4);x.ellipse(920,850-j*600*S(o/4)-w,200-w,200+w,0,0,7);x.fill()

Jan 27 2019 5:54 AM UTC

}// 127/140

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New_Core's bouncing ball + squash = jumping jack

u/katkip

Nice
u/katkip

#physics #jelly
u/DataMeta

Delightful!
u/joeytwiddle

Change o*4 to o*3 for a slower wobble

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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

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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

dwitter.net | magna (131666)