Dweets awesomed by u/Polyducks

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: #Opposites

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Exquisite

function u(t) {

r=1080;d=960;c.width=2*d;for(i=0;i<999;i++){x.fillStyle=R(i%800,i%255,i%300);x.fillRect(d+300*C(i+t),r/2+300*S(i)+T(t+i),10,10);}

Dec 27 2017 2:29 AM UTC

}// 129/140

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u/Polyducks

This is an absolute trip.
u/Exquisite

Haha thanks, Tan functions do some wacky stuff

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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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dongwoo

function u(t) {

x.fillRect(0,950,620,c.width|=0)
x.font="6cm a";['🎈','🤡','⛵'].map((e,i)=>{k=(i+2)%3;x.fillText(e,200*i,1750-(t%5>k+1?1:t%5<k?0:t%1)*680)})

Jul 17 2017 5:52 AM UTC

}// 138/140

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u/XMF

I thought you would use integers for this, but they're all floats down here.
u/Polyducks

omg that's an amazing reference.

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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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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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cantelope

function u(t) {

A=960,B=540,x.fillRect(0,0,2e3,2e3)
for(i=99;i--;)x.clearRect(A+1/(Z=2.5+C(p=i+t)*S(q=i/31))*(X=S(p)*S(q))*A,B+C(q)/Z*A,s=69/Z/Z,s)

Jul 10 2017 4:43 AM UTC

}// 132/140

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u/f8f82804

#sphere #perspective

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alien

remix of d/2835 by u/alien

function u(t) {

w=c.width=180
f=frame
for(j=0;j<w;j++)
for(i=0;i<w;i++){
q=i*i+j*j
s=i*C(q)+(f%2)
s%=255
x.fillStyle=R(s*2,s*2,s*3)
x.fillRect(i,j,1,1)
}

Jul 6 2017 8:09 PM UTC

}// 140/140

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u/sigveseb

This is the prettiest dweet I've seen in a long time :)
u/alien

oh thank you :D
u/donbright

great colors

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alien

remix of d/2834 by u/alien

function u(t) {

c.width=200
f=frame
for(j=0;j<51;j++)
for(i=0;i<51;i++){
s=1.4**(i*i*j&f)+7.5
s%=255
x.fillStyle=R(s*2,s*2,s*3)
x.fillRect(i*2,j*2,2,2)
}

Jul 5 2017 7:23 PM UTC

}// 140/140

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u/Polyducks

Great colours and textures

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alien

remix of d/2832 by u/alien

function u(t) {

c.width=200
f=frame
for(j=0;j<51;j++)
for(i=0;i<51;i++){
s=i*i%+j*j+f*3
s%=255
x.fillStyle=R(s*2,s*3,s*4)
x.fillRect(i*2,j*2,4,4)
}

Jul 5 2017 7:00 PM UTC

}// 133/140

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OK WTF!!!!

u/sigveseb

Cool :D
u/donbright

these have a really cool feel, not sure how to describe it but its definitely different. reminds me a little bit of 8 bit art but not exactly.

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