Dweets by u/cantelope

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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cantelope

remix of d/3026 by u/cantelope

function u(t) {

for(x.fillRect(0,0,2e3,2e3),W=960,j=99;--j;)for(i=16;i--;x.clearRect(W+S(p=.39*i+j/4-6.03*V)/Z*W,540+C(p)/Z*W,s=99/Z,s))Z=j-t*6+(V=(t*6)|0)

Aug 7 2017 3:11 AM UTC

}// 139/140

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cantelope

function u(t) {

for(x.fillRect(0,0,2e3,2e3),W=960,j=99;--j;)for(i=3;i--;x.clearRect(W+S(p=2.1*i+j/9-6.17*V)/Z*W,540+C(p)/Z*W,s=99/Z,s))Z=j-t*6+(V=(t*6)|0)

Aug 7 2017 2:58 AM UTC

}// 138/140

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cantelope

function u(t) {

for(V=(c.width=1e3)/2,H=j=99;j--;x.stroke())for(x.beginPath(),i=H,Z=i-j;i--;x.lineTo(V+X/Z*V,(S(i/5+C(t)*4)*C(j/9-t*7)*j/9+30)/Z*V))X=H-i*2

Aug 6 2017 6:10 AM UTC

}// 139/140

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mostly what i was going for... not exactly.

u/joeytwiddle

smooth

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cantelope

remix of d/3008 by u/New_Core

function u(t) {

x.fillRect(0,0,2e3,2e3)
for(X=Y=0,i=d=350;i--;x.clearRect(X*Z+960,Y*Z+540,Z*4,Z*4))Z=d/(9+d-t*i%d),X+=6*C(a=i/50-9*S(t/8)*S(i/9)),Y+=6*S(a)

Aug 5 2017 5:55 AM UTC

}// 139/140

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just made a few small changes.. loved this one and wanted to see it with colors inverted :D

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cantelope

function u(t) {

for(K=128,E=20,H=j=54;j--;)for(i=99;i--;x.fillRect(X,Y,E,E))x.fillStyle=R(K+S(J=((X=i*E)**2+(Y=j*E)**2)**(.6-C(t)/5)/H)*K,K+C(J)*K,K-S(J)*K)

Aug 4 2017 9:26 AM UTC

}// 140/140

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u/sigveseb

Pretty
u/cantelope

ppl seem to either love or hate my more visually stimulating dweets. I agree that it's pretty, but someone else complained that it is an epilepsy-causing abomination that should be stopped. :s
u/joeytwiddle

One of your dweets overheats my laptop and makes it shut down
u/cantelope

:s do you know which one? this one?

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cantelope

remix of d/2948 by u/cantelope

function u(t) {

for(x.globalAlpha=.05,x.fillRect(0,0,g=i=2e3,2e3);i--;x.clearRect(960+l*S(i/3e2+t)*g/Z,540+C(p)*i/Z*g,s=5e8/Z/Z,s))l=S(p=i+t)*i,Z=g*4-l*C(t)

Jul 27 2017 8:40 PM UTC

}// 140/140

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u/Rybar

love this render method. globalAlpha + erasing holes is a new trick for me
u/sigveseb

good style!
u/iverjo

Really nice!

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cantelope

remix of d/2309 by u/cantelope

function u(t) {

x.fillRect(0,0,i=2e3,2e3);for(g=i/2;i--;x.clearRect(960+l*S(t)*g/Z,540+C(p)*i/Z*g,s=2e8/Z/Z,s))l=S(p=i*2.1+t*(i<1e3?-1:1))*i,Z=g*4.5-l*C(t)

Jul 27 2017 6:43 AM UTC

}// 139/140

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u/sigveseb

kewl
u/iverjo

stylish

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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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cantelope

function u(t) {

for(x.fillRect(0,0,i=(W=960)*2,i);i--;)x.clearRect(W+W/(Z=6+C(p=i/200+S(t)/(V=i/W*((Y=(i/50+t)%4-1)-3)/(2+Y))+t)*V)*S(p)*V,540+W*Y/Z,9,9)

Jul 15 2017 6:49 PM UTC

}// 137/140

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Special thanks to p01 for helping to golf this. <3

u/sigveseb

looks good!
u/donbright

fine work
u/joeytwiddle

#organic

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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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