Dweets awesomed by u/bmearns

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.

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Current theme challenge: #ScaryMovies

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bmearns

function u(t) {

c.width|=0
for(i=106;o=.03*i--;y=p=>120*(1+S(i+p*t)),x.fillStyle=R(y(0),y(.6),y(2)),
r=440*S(t+o),x.fillRect(960+r*C(o),540+r*S(o),50,20));

Nov 20 2019 1:04 AM UTC

}// 139/140

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bmearns

function u(t) {

for(i=8;i--;)for(j=4;j--;)k=4*(7-i)+(3-j),x.fillStyle=R(125+120*S(t)*(t>>k&1),125+120*S(t),125+120*C(t)),x.fillRect(240*i,240*j,200,200)

Nov 19 2019 1:43 AM UTC

}// 136/140

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u/Xen

nice! #waitforit
u/DataMeta

#binary #clock

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rodrigo.siqueira

remix of d/16426 by u/rodrigo.siqueira

function u(t) {

for(i=340;--i;x.fillRect(960+S(m*m*m)*q*(t%3),200+i+(t%2)*C(m*m)*q,m,m))m=i/9+80*(t%3),q=1e5/i,x.fillStyle=R((t%2)*i*i/150,(t%1)*i*i/480)

Nov 19 2019 1:42 AM UTC

}// 137/140

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Volcano strikes again 🌋

u/Xen

sexy magma!

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DataMeta

function u(t) {

if(t<55/7)x.fillRect(960-320*C(t-(h=t>22/7?1:0)),540+320*S(h+t),8,8)

Nov 18 2019 11:39 PM UTC

}// 68/140

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ringed #planet

u/DataMeta

with starry backdrop: for(i=2e3;i--;)x.fillRect(i,t*99,r=4.6*Math.random(),r);if(t<121/7) x.clearRect(960+320*C(t-(h=t>88/7?1:0)),540-320*S(h+t),6,6)
u/katkip

awesome!

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joeytwiddle

function u(t) {

for(c.width=X=55;X--;)for(Y=34;T[7]=X/3,T[6]=Y/3,Y--;)for(l=6;x.fillRect(X,Y,s=T[0],s),l--;T[l]=S(v))for(v=n=l;n++<7;)v+=t*(l+n)/7%1*T[n]

Nov 18 2019 1:42 PM UTC

}// 137/140

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Dweet dream: a sort of 7-layer neural network

Show more comments…
u/joeytwiddle

A poor man's zzArt. A redux of https://joeytwiddle.github.io/nn-images/
u/joeytwiddle

Node values are held in T, with T[6,7] being the input nodes. Each "layer" has just one output T[l] formed from all the previous nodes T[l+1..7]
u/joeytwiddle

Instead of randomly generating and storing weights, we use t*(7*l+n)%1 Other weights you can try: v+=S(t*l+n)*T[n] or v+=S(l+t*n)*T[n]
u/DataMeta

Beautiful 👏
u/f8f82804

#dweetdream
u/KilledByAPixel

👍

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katkip

remix of d/16657 by u/katkip

function u(t) {

f=[];z=t;for(i=99;i--;)f.push(z=S(z)**9+C(z)**5+.1*t);for(o of f)x.fillRect(960+S(t)*o*300,540+C(t)*o*300,5,5)

Nov 16 2019 5:03 PM UTC

}// 110/140

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u/rodrigo.siqueira

Ouroboros
u/michaelplzno

would it be possible to zoom the canvas out as the pattern expands?
u/katkip

not really, save the points into array

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metamero

function u(t) {

c.width|=0
for(j=12;j--;)for(i=36,h=0;a=90+82*S(i/5+t),i--;h+=a)i+j&1||x.fillRect(h,j*90,a,90)

Nov 16 2019 11:11 AM UTC

}// 94/140

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animation-recreation of "Movement in Squares" by Bridget Riley 1961 #OpArt

u/katkip

good!
u/joeytwiddle

#art #tribute
u/metamero

i think like this for(i=69,h=0;a=47+43*S(i/6+t),i--;h+=a) could be more accurate

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bmearns

function u(t) {

v=o=>120*(1+S(Date.now()/60000+o));
x.fillStyle=R(v(0),v(2),v(4))
x.fillRect(0,0,1920,1080)

Nov 14 2019 3:05 AM UTC

}// 91/140

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Patience is a virtue.

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f8f82804

remix of d/16598 by u/f8f82804

function u(t) {

for(X=w=c.width^=0,s=256;X-->-w;x.lineTo(_X-S(a)*Y,540+C(a)*Y))a=C(z=(_X=X>0?X:-X)/s+t)*3-C(t),Y=s*S(z*3.14-t)*C(z+t)+(X<0?s:0);x.fill();

Nov 14 2019 2:53 AM UTC

}// 137/140

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u/katkip

looks good

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bmearns

remix of d/16616 by u/bmearns

function u(t) {

for(i=39;i--;
l=80-i,
x.fillStyle=R(255-10*i,100+100*S(3.1*t+i*t),100+100*C(8.1*t),.2),
x.fillRect(960+(600-8*i)*S(t+i/30),840-15*i,l,l)){}

Nov 13 2019 2:08 AM UTC

}// 139/140

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