Dweets awesomed by u/taupelink

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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yonatan

remix of d/10782 by u/yonatan

function u(t) {

for(i=c.width=99;i--;)for(k=j=56;j-->-k;)x.fillRect(i,j/2+28,1/t,j>0?(S(j*j+i/j-t*7)+C(j**5-i/j*6+t)**3)*j/k:Math.hypot(j+t*9,i-k)/300/t)

Jan 20 2020 6:48 PM UTC

}// 137/140

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sunrise

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u/denzen

Amazing!
u/tomxor

Holly **** ! or a nuke on the horizon :P
u/aleamb

Brutal!!!
u/aleamb

#sunrise #sea #landscape #sun
u/13thptr

thought about a nuke too x) gret job
u/13thptr

*great
u/katkip

!! awesome
u/Leodude123

Coll
u/Leodude123

Sorry I misspelled that
u/Leodude123

I meant cool!
u/eduft15

nice man!

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tomxor

remix of d/17224 by u/tomxor

function u(t) {

c.style='filter:invert(1';for(a=b=p=3.14,i=1e4;i--;a+=(r-a+b*S(a*p))/p,b+=(-a*b+C(a*p))/p)i&4&&x.fillRect(900+b*480,60+a*960,1,.2,r=i*t/b&3)

Jan 19 2020 1:39 PM UTC

}// 140/140

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u/13thptr

mind=blown
u/tomxor

:D did you see the tendrils too, stuff just lives in math i swear
u/ivylab

I just learned this cool invert trick from your dweets, awesome. Did you notice that you can leave out the 1 at the end? :)
u/tomxor

Oh nice, thanks for the tip u/ivylab :)

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KilledByAPixel

remix of d/17235 by u/rodrigo.siqueira

function u(t) {

for(c.width|=i=9;i--;x.fillRect(400+i*99+S(t)*300,400,50,200))c.style=`border:solid;transform:rotate3d(1,5,2,${t*4}rad)scale(${Z=2/t},${Z})`

Jan 19 2020 6:09 AM UTC

}// 140/140

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goodbye #default

u/katkip

#falling #d3

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rodrigo.siqueira

remix of d/13119 by u/rodrigo.siqueira

function u(t) {

c.width+=X=Y=Z=d=.04
for(i=6e3;i--;)X+=-d*(Y+Z),
Y+=d*(X+.2*Y),
Z+=d*(.2+Z*(X-5)),
x.lineTo(980+80*(X*C(t)-Y*S(t)),800-Z*48+Y*19)
x.stroke()

Jan 12 2020 12:43 AM UTC

}// 140/140

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Turning Rössler Strange Attractor, a system of three non-linear ordinary differential equations with chaotic dynamics and fractal properties. Some people see this turning clockwise, some see counterclockwise due to the bistable optical illusion (search "Spinning Dancer" for explanation). #attractor #illusion

u/rodrigo.siqueira

The rotation effect trick X*C(t)-Y*S(t) was "borrowed" by Frank Force KilledByAPixel's #Lorenz Attractor: from https://www.dwitter.net/d/14752

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veubeke

function u(t) {

for(Y=19;Y--;)for(X=40;X--;)x.fillRect(48*X,16+56*(Y+(X>7&X<32)*8),!Y&X+1>>1||(Y+3&7)>5&&X>2&X<5|X>34&X<37||Y>5&X>16&X<23?0:40+(X+Y&1)*8,48)

Jan 11 2020 7:39 PM UTC

}// 140/140

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#castle

u/iverjo

Amazing!
u/katkip

Awesome!

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tylertoomey

function u(t) {

t?B=0.02:X=Y=A=255;x.fillRect(0,0,2e3,2e3,x.fillStyle=R(0,0,0,B)),x.fillRect(X,0,A,1280,x.fillStyle=`hsl(${X/20},100%,60%`,X=800+C(t)*857)

Jan 11 2020 5:29 PM UTC

}// 140/140

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pseudo trails / blur by additively drawing a semi-transparent rect over the canvas every frame. change the value of 'B' to increase / decrease 'trail' length

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New_Core

function u(t) {

for(i=99;i--;)d=~~(t/1.53)%2*199,x.fillStyle=R(a=Math.random()*25+99-d/3+49*S(d?3:t*4),a,a),x.fillRect(t*60*7,400+i*7+d+~~(t*9)%2*50,7,7)

Jan 11 2020 11:15 AM UTC

}// 137/140

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#castle

u/Xen

nice
u/13thptr

amazing
u/katkip

nice!

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pavel

remix of d/17068 by u/pavel

function u(t) {

for(i=c.width|=0;i--;x.fillRect(960-p/h,540+q/h,5,5))j=i>>8,f=g=>2%~j*g(9696*j-t)+3**!j*g(578*i),p=f(C)-3**.5*S(t/16),q=f(S),h=(p*p+q*q)/420

Jan 11 2020 9:02 AM UTC

}// 140/140

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Eight kissing circles 2

u/pavel

Using map-the-dots method. As you can see circles stay circles but they scrunch and stretch along their path.
u/yukulele

https://en.wikipedia.org/wiki/Steiner_chain
u/katkip

WOW

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tylertoomey

function u(t) {

for(i=0;i<1000;i++){x.fillStyle=`hsl(${C},80%,50%)`;x.fillRect(T()*400,T()*400,2,2);t?C=100+(T()>S(t))*100:(T=Math.random,c.width=400)}

Jan 10 2020 5:23 PM UTC

}// 135/140

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bloom

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katkip

function u(t) {

for(c.width|=j=5,z=600;j--;)for(i=2*z;i--;)x.fillRect(960+C(i*52e-4)*600+S(i*j+t)*99,540+S(i*52e-4)*300+C(i*j+t)*99,s=C(i*52e-4-1.5)*2+5,s)

Jan 10 2020 1:02 PM UTC

}// 139/140

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#ellipse inside a #torus

u/DataMeta

#opticalillusion

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