Dweets awesomed by u/hscells

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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jick

remix of d/2912 by u/p01

function u(t) {

r=t+20;
for(i=c.width|=0;i--;){
x.beginPath()
x.fillStyle=`hsl(${i*r},50%,50%)`
x.arc(i%98*19,i*(1-T(i/r)),20,0,6)
x.fill()
}

Jul 20 2017 4:28 PM UTC

}// 125/140

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Xen

remix of d/2846 by u/cantelope

function u(t) {

for(x.fillRect(B=490,0,A=970,i=1e3);i--;)x.clearRect(A+1/(3+C(t*i))*S(t*i)*S(i)*A,C(i)/3*A+B,7,2)

Jul 18 2017 11:20 PM UTC

}// 97/140

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dongwoo

function u(t) {

c.width|=0
b=(a)=>x.rotate(a)
b(t*.1)
for(i=3000;i;){b(i*.01);x.fillStyle="hsl("+360*((i/900-t)%1)+",100%,50%)";x.fillRect(0,0,10,i--)}

Jul 18 2017 1:58 AM UTC

}// 135/140

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u/cantelope

love it!
u/Purpzie

Shortened by 9 characters: for(c.width|=0,x.rotate(t*.1),i=3e3;i--;x.fillStyle="hsl("+360*((i/900-t)%1)+",100%,50%)",x.fillRect(0,0,10,i))x.rotate(i*.01)

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dzozef

function u(t) {

c.width=640;for(i=0;i<900;i++){a=i%30;y=Math.floor(i/30);x.fillRect(a*10+y*10,180-a*5+y*5-S(((15-a)*(15-a)+(15-y)*(15-y))*0.02+t*5)*16,2,2)}

Jul 17 2017 12:45 PM UTC

}// 140/140

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u/Polyducks

Wow... this is just.... wow...
u/Xen

90byte De-make #2921

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cesque

function u(t) {

for(j=0;j<400;j+=40)(w=l=>{for(i=0,R=4*l,r=l/2,b=R-r;i<7;i+=0.01){q=(n)=>b*n(i)+(S(t*5)*r*n(-b/r*i));x.fillRect(980+q(C),540+q(S),4,4)}})(j)

Jul 16 2017 5:28 PM UTC

}// 140/140

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u/donbright

elegant work
u/Xen

I think you should see what you helped create: 2890

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cantelope

remix of d/2873 by u/cantelope

function u(t) {

for(i=(W=960)*2;i--;x.fillRect(i,0,.2,2e3,x.clearRect(W+W/(Z=7.5+C(p=i/9+1/V+t)*V)*S(p)*V,99+W*Y/Z,s=500/Z/Z,s)))Y=(t+i/5)%4,V=i/W*(4-Y)/++Y

Jul 15 2017 8:52 PM UTC

}// 140/140

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Again, special thanks to p01 for making this dweetable.

u/cantelope

the goal was to golf this ( https://cantelope.org/vortex ) to140b. Mission accomplished. :)
u/donbright

awesome
u/innovati

🌀😎👌
u/cantelope

❤️

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New_Core

function u(t) {

c.width|=1
X=960
Y=700
for(i=320;i--;x.fillRect(X,Y,7,7))X+=6*C(a=i/50-9*S(t/4)*S(i/10)),Y+=6*S(a)

Jul 15 2017 7:37 PM UTC

}// 98/140

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u/Xen

done remix 2882
u/donbright

excellent
u/katkip

smooth

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cesque

function u(t) {

c.width*=1;for(i=0;i<7;i+=.01){for(q=i,j=32;j<256;j+=32){r=2*j+S(i*j/4+t*8)*10;x.fillStyle=R(j,j,j);x.fillRect(960+r*C(q),540+r*S(q),8,8)}}

Jul 14 2017 11:53 PM UTC

}// 139/140

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cesque

function u(t) {

c.width=999;[0,3,39,3,39,27,3,0].forEach((z,i)=>{for(var j=7,s=16*(S(t)+2);j>=0;j--) {if((z+126&(2**j))>0) x.fillRect(j*s,i*s,s,s)}})

Jul 13 2017 9:27 PM UTC

}// 133/140

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cantelope

remix of d/2845 by u/cantelope

function u(t) {

A=960,B=540,x.fillRect(0,0,D=2e3,D)
for(i=D;i--;)x.clearRect(A+1/(Z=2.5+C(p=i*C(t/2)/40)*S(q=i/628))*(X=S(p)*S(q))*A,B+C(q)/Z*A,s=69/Z/Z,s)

Jul 10 2017 4:43 AM UTC

}// 140/140

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Show more comments…
u/lionleaf

That's really neat!
u/Polyducks

This is amazing! What's the concept behind it? How are you getting the sphere?
u/cantelope

@Polyducks, it's a golfed version of the equation of a sphere [x=sin(p1)*sin(p2);z=cos(p2);z=cos(p1)*sin(p2);] combined with a tiny 3D projector, X=cx+1/z*x*cx; Y=cy+y/z*cx, where cx/cy is center screen, and x/y/z are the 3D coordinates. Hope that makes sense! :)
u/cantelope

*equation of a sphere: [x=sin(p1)*sin(p2);y=cos(p2);z=cos(p1)*sin(p2);]
u/alien

thanks for that, is projector a mathematical construct? does it have other names?
u/cantelope

@alien it's my own invention, the product of years of research into geometry. I wrote a tutorial with a (very ungolfed) version here https://cantelope.org/3D
u/alien

*__*
u/alien

All the lienar algebra and vectorial calculus in my bachelor finnally comes to life in my head... this is soooo cool @cantelope...
u/donbright

bravo... bravo

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