Dweets awesomed by u/monstrousmoonshine

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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zibx

function u(t) {

t||(a=[p=[f=666,f,3]]);for(j=i=f;--i;)[X,Y,A]=k=a[i]||p,A+=S(t%i),x.stroke(new Path2D(['M'+X,Y,'L'+(V=X-C(A)*6),B=Y+S(A)*6])),a[i]=[V,B,A];

Jul 26 2019 12:52 PM UTC

}// 139/140

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It looks similar to my previous demo, but now it is not compressed!

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rep_movsd

function u(t) {

c.width|=1
with(x)for(m=255;m--;){
fillStyle=R(m,0,0,.04)
beginPath()
arc(960+m/4*S(t*m),600+m/5*C(t*m),m+C(t+m)*m,0,6)
fill()}

Jul 25 2019 11:00 PM UTC

}// 127/140

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Vortice of madness

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KilledByAPixel

function u(t) {

for(k=576;k--;x.fillRect(i*C,j*C,C,C=60))i=k%32,j=k>>5,q=Math.hypot(i-25,j-6),x.fillStyle=q?R(v=(S(k*k+t)*32+300-19*j)*q/39,v,v):"red"

Jul 25 2019 10:23 PM UTC

}// 134/140

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Killed By A Pixel ~ www.frankforce.com

u/donbright

ooooooooh neat
u/monstrousmoonshine

I so want it on my wall
u/ivylab

Beautiful!

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taupelink

remix of d/15141 by u/taupelink

function u(t) {

X=d=e=(1+S(t))/2;x.fillStyle=R(0,X*256);for(i=1e4;i--;)x.fillRect(d*1920,e*1080,1,1),d+=([0,X,1][r=Math.random()*3|0]-d)/2,e+=("101"[r]-e)/2

Jul 25 2019 10:05 PM UTC

}// 140/140

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back to linear and three points, but the top point oscillates

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taupelink

function u(t) {

for(i=1e4,d=e=0;i--;)x.fillRect(d*1920,e*1080,1,1),d+=([-1,0,1,2][r=Math.random()*4|0]-d+d*e)*.45,e+=([2,-1,0,2][r]-e-d*d)*.45

Jul 25 2019 5:55 PM UTC

}// 126/140

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a nonlinear four-point #chaosgame

Show more comments…
u/rep_movsd

Looks like a charcoal sketch of mountains
u/nuc

Fantastic!
u/KilledByAPixel

👍
u/donbright

really great
u/moto

cloudy)
u/taupelink

d/15141

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monstrousmoonshine

function u(t) {

c.width*=1,x.globalAlpha=.5;for(i=41;i--;x.stroke())p=300/C(v=.3*t+.1571*i),q=p*S(v),x.beginPath(),x.arc(960+p,540-q,Math.sqrt(p*p+q*q),0,7)

Jul 25 2019 3:40 PM UTC

}// 140/140

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Lemniscate

u/donbright

#math
u/KilledByAPixel

👍

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katkip

function u(t) {

eval(unescape(escape`𮀮𩡩𫁬𤱴𮑬𩐽𭀿𙱲𩑤𙰺𙰣𩡦𩠧𞱸𛡦𫱮𭀽𭀿𘠱𩑭𙰢𞠧𝱩𫠢𙰻𭁼𯁸𛡦𪑬𫁔𩑸𭀨𨁌𣱖𡑠𛀴𜀬𝰶𜀩𞱦𫱲𚁩🐹𞐻𪐭𛐻𚑻𦀽𚁲👍𨑴𪀮𬡡𫡤𫱭𚐨𚐪𜐹𜠰𛁙👲𚀩𚠱𜀸𜀻𮀮𩱥𭁉𫑡𩱥𡁡𭁡𚁘𛁙𛀱𛀱𚐮𩁡𭁡𦰳𧐦𙡴🱸𛡦𪑬𫁔𩑸𭀨𙱜𭐲𝰶𝀧𛁘𛁙𚐺𜁽`.replace(/uD./g,'')))

Jul 22 2019 7:33 PM UTC

}// 139/140

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**LOVE** #text #effect x.fillStyle=t?'red':'#fff';x.font=t?"1em'":'7in"';t||x.fillText(LOVE,40,760);for(i=99;i--;){X=(r=Math.random)()*1920,Y=r()*1080;x.getImageData(X,Y,1,1).data[3]&&t?x.fillText('\u2764',X,Y):0}

u/katkip

Made out of hearts.
u/KilledByAPixel

❤
u/rep_movsd

Making love out of nothing at all?

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New_Core

function u(t) {

for(c.width|=i=58;i--;x.lineTo(-300+a*S(b-1)+q%2600,1400+a*C(b-1)-q/2%1700))q=S(t)*99+t*99,a=99*S(-t+C(b=i/9)+20**C(b))+200
x.fill()

Jul 21 2019 7:56 PM UTC

}// 132/140

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wait for something to swim by..

u/DataMeta

#organic
u/KilledByAPixel

🐙
u/13thptr

#jellyfish ?
u/katkip

#cute
u/joeytwiddle

Very good #fish Interesting head -> leg trick

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katkip

function u(t) {

c.width*=1;for(i=399;i--;x.globalAlpha=.3)x.beginPath(),x.ellipse(960+C(i)*70,540+S(i)*70,100,300,C(i/3+t),0,7),x.stroke()

Jul 11 2019 5:48 PM UTC

}// 122/140

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#abstract

u/aleamb

great!

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rodrigo.siqueira

remix of d/12440 by u/rodrigo.siqueira

function u(t) {

t||(a=b=0)
for(i=5e3;i--;)x.fillStyle=R(C(a)*200,S(a)*b/3,t*42),x.fillRect(960+b*S(a*.8),540-b*C(a*.8),1,1),a+=1.9*C(2.5*a)+C(t/5),b+=.00076

Jul 7 2019 9:15 PM UTC

}// 140/140

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Feigenbaum Flower. Homage to Mitchell Feigenbaum (1944-2019). He demonstrated the universal character of dynamical non-linear systems, which has made possible the systematic study of chaos. In 1975, using the small HP-65 calculator, he discovered that the ratio of successive distances between bifurcation events tends to a constant δ ≈ 4.66920... This "ratio of convergence" of period-doubling bifurcations is now known as the first Feigenbaum constant. #bifurcation #attractor #fractal #chaos #math

u/taupelink

This is a great tribute. RIP.
u/donbright

really nice
u/artfarnaa

Rodrigo - are you working full time on this fractal stuff? Super impressive if its only a hobby. Great work.
u/rodrigo.siqueira

#tribute

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