Top dweets of all time

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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nystrand

remix of d/1968 by u/nystrand

function u(t) {

for(l=c.width|=a=C(t),b=S(t);l--;x.fillText(i*z^39,(k-a*i-b*a*j)*z+899,(i+b*j+a*k)*z+500))i=a*S(l),k=3+C(l),j=S(p=l/79)*k,k*=C(p),z=99-a*j*9

Apr 23 2017 5:49 PM UTC

}// 140/140

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u/donbright

best dwitter torus?
u/sigveseb

nice!
u/keithclark

Why not use x.fillRect((k-a*i-b*a*j)*z+899,(i+b*j+a*k)*z+500,6,6)? it renders faster and is smaller
u/mxfh

Print and connect the dots. Or do it on screen for lasting impact.

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Polyducks

function u(t) {

c.width=1920
x.fillRect(0,0,1920,1080)
x.fillStyle="#AAAAFF"
for(i=0;i<20;i++){
  a=T(t+i)*10
  x.fillRect(888*i%1920,a,20,a)
}

Apr 18 2017 8:33 AM UTC

}// 127/140

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*RAIN DROPS*

u/magna

*JAW DROPS*
u/Jenky

Like melting ice :o
u/Polyducks

Aww thanks you guysss!

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keithclark

function u(t) {

for(a=c.width^=0;a--;x.fillRect(C(a+t)*S(b)*h+960,C(b)*h+540,i=h/40-5,i))h=900/(2-S(a+t)*S(b=a*1.2502))

Apr 13 2017 9:50 AM UTC

}// 103/140

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Smaller version of https://www.dwitter.net/d/2298

u/aemkei

Nice golfing!!
u/donbright

ditto

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joeytwiddle

function u(t) {

c.width|=0;x.lineWidth=d=45;for(i=30;i--;r%4&&x.stroke())r=(2+i%10),s=i+4*S(t+i),l=(4+i*3)%6,x.beginPath(),x.arc(940,540,r*d*.9,s,s+l)

Apr 12 2017 7:16 PM UTC

}// 134/140

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http://revision-party.net is this weekend!

Show more comments…
u/reportbase

Thumbs Up. This is cleaver.
u/donbright

!!!!!!
u/sigveseb

Who's going?
u/joeytwiddle

Unfortunately I am too far from the party. BTW this dweet runs too quickly. I should have used t/3
u/iverjo

I'm going to revision :D
u/joeytwiddle

Lock some of the blocks, so not everything is moving at once: s=i+2*C(t/4+i)**32
u/joeytwiddle

Have a great time iverjo and anyone else attending!
u/iverjo

#revision

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codeslaw

function u(t) {

x.fillRect(0,0,$=2e3,$)
i=3e3;while(i--){x.strokeStyle=`hsla(${i*C(t/21)},79%,49%,.3)`;π=i%$||x.stroke()|x.beginPath()
x.arc(0,i/$*π,π,0,7)}

Mar 18 2017 1:21 AM UTC

}// 140/140

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Curves, colors, lights, and shadows.

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u/sigveseb

Very nice!
u/iverjo

Nice in Chrome, but froze my Firefox for like 15 seconds
u/codeslaw

😅 You can play around with lowering i and $ to raise the frame rate ¯\_(ツ)_/¯
u/donbright

i like the elegance of this, really has a special look to it
u/donbright

i like the elegance of this, really has a special look to it
u/joeytwiddle

#shiny

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mxfh

remix of d/855 by u/mxfh

function u(t) {

r=480;c.width=r*4;λ=t;for(φ=a=Math.PI/2;φ>-a;φ-=a/r/2){λ+=a;x.arc(C(φ)*S(λ-t)*r+2*r,(C(t+=a/r)*S(φ)+S(t)*C(φ)*C(λ-t))*r+r,a,-a,a)}x.fill()

Mar 15 2017 3:12 PM UTC

}// 138/140

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Show more comments…
u/sfz

wtf!
u/donbright

the reflection thing is great!
u/recursive

wow, what?
u/sfz

shaved some bytes by replacing Math.PI/2 with 1.57, have fun remixing!
u/sfz

Also r=480;c.width=r*4 to c.width|=r=480 ... down to 130
u/mxfh

c.width|=r=540 for(λ=φ=a=1.57;φ>-a;)x.arc(C(φ)*S(t-λ)*r+960,(C(t+=a/r)*S(φ)+S(t)*C(φ-=a/r/2)*C(λ-t))*r+r,0,λ+=a,0) x.fill()
u/mxfh

thanks, using the angle offsets in arc gives another two possible spots for variable assignment at a radius of 0, so you get something equivalent at 123
u/sigveseb

Is that the same reflection technique as in https://www.dwitter.net/d/915 ?
u/mxfh

should be, I assume it's that negative winding on polygons messes with the fill rule evaluation
u/mxfh

just to clarify, fill rules looks allright, it's really just non-covered areas due to the zig-zagging of the fill. try a lower decrement like φ-=a/r*8 to see the more graspable source of the effect
u/mxfh

#arc

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recursive

function u(t) {

t||(g=h=[])
for(n=i=960;--i+n;x.fillRect(i/d+n,(4-g)*99/d,9,99))h[i]=g=(g+h[i-1]+S(n*g)/9)/2||1,x.fillStyle=R(q=3*(t+9)*g,q,q*q>>7),d=1-t/30

Mar 13 2017 4:23 AM UTC

}// 140/140

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Rough surface

u/IV

It's like watching Bob Ross: 'happy little trees; anywhere you feel like...'

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recursive

function u(t) {

w=C(t)
h=S(t)
for(c.width|=s=i=H=512;i--;x.fillRect(960+(X*w-S(i)*h)*H,H+(Y*w-Z*h)*H,d=(Z*w+Y*h)*5+9,d))X=C(o=i/82),Y=C(i)*S(o),Z=S(i)*w+X*h

Mar 12 2017 5:11 AM UTC

}// 140/140

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u/donbright

!!!
u/FireFly

Looks like a cushion!
u/username

pillow

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netgrind

function u(t) {

w=960
c.width=w*2
x.beginPath()
x.lineWidth=5
for(i=0;i<6.28;i+=.0628){
p=i+t*.2
x.moveTo(C(p)*w+w,0)
x.lineTo(S(p)*w+w, 1080)
}
x.stroke()

Mar 9 2017 10:13 PM UTC

}// 139/140

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u/donbright

elegant!
u/jsizzle

awesome

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sfz

remix of d/1962 by u/sfz

function u(t) {

w=950
V=t%13+3
for(i=V;i>0;i-=2/w)x.fillStyle=`hsla(${7*t*i},66%,66%,.2)`,x.fillRect(w+w*S(t*i+2*V),w/2+w/2*S(V*i+2*t+3),V,V)

Mar 8 2017 7:22 PM UTC

}// 125/140

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Harmonograph II.2

u/donbright

i like these colors
u/sfz

I call it Mathematician's Plaid