New #perspective dweets

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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pavel

remix of d/10801 by u/f8f82804

function u(t) {

c.width=480
for(k=5;k--;)for(n=7;n--;x.lineTo(240+99*r*S(p=(n<4?n:n-4)/1.6+1.26*k-t),50*r*C(p)+70*(n<4?n:6-n)))r=n%3>0
x.stroke()

Oct 31 2018 8:52 PM UTC

}// 129/140

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u/f8f82804

amazing! #wireframe #d3 #perspective #decahedron #d10
u/f8f82804

oops, looks like this doesn't use any perspective transfrom
u/iverjo

Nice!
u/f8f82804

#pentagonal #trapezohedron

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f8f82804

remix of d/10804 by u/f8f82804

function u(t) {

c.width=480;i=0;for(y of'0111111210121012')x.lineTo(240+y%2*S(p=t-2.5*'0012340010203040'[i++])*(z=400/(3+y%2*C(p))),y*z);x.stroke()

Oct 31 2018 8:28 PM UTC

}// 131/140

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#pentagram -- #d3 #perspective #wireframe

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f8f82804

remix of d/10800 by u/Xen

function u(t) {

c.width|=i=0;for(y of'0111111210121012')x.lineTo(1e3+y%2*S(p=t-2.5*'0012340010203040'[i++])*(z=1600/(3+y%2*C(p))),y*z);x.fill('evenodd')

Oct 31 2018 8:26 PM UTC

}// 136/140

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#pentagram -- technically a pentagrammic star dipyramid

u/f8f82804

#d3 #perspective

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f8f82804

remix of d/10797 by u/f8f82804

function u(t) {

c.width=480;i=0;for(y of'0235320235320235')x.lineTo(240+2*(r=y%5?1:0)*S(p=t+.628*'0010320450760890'[i++])*(z=120/(3+r*C(p))),y*z);x.stroke()

Oct 31 2018 7:10 PM UTC

}// 140/140

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#draft dweet of a #wireframe #d3 #perspective #decahedron -- in this case it's a #pentagonal #trapezohedron (#d10)

u/f8f82804

making this work as intended in the size limit will require coming up with a more clever way of iterating over the vertices, either via a formula or a more clever encoding of their coordinates

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f8f82804

remix of d/10796 by u/f8f82804

function u(t) {

c.width=480;i=0;for(y of'0111111210121012')x.lineTo(240+y%2*S(p=t+1.257*'0012340010203040'[i++])*(z=400/(3+y%2*C(p))),y*z);x.stroke()

Oct 31 2018 6:34 PM UTC

}// 133/140

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#d3 #perspective #decahedron #wireframe -- this is a #pentagonal #bipyramid

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f8f82804

remix of d/10686 by u/f8f82804

function u(t) {

c.width^=i=0;for(y of'0111111210121012')x.lineTo(960+y%2*S(p=t+1.257*'0012340010203040'[i++])*(z=1600/(3+y%2*C(p))),y*z);x.fill('evenodd')

Oct 31 2018 6:32 PM UTC

}// 138/140

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#d3 #perspective #decahedron -- this is a #pentagonal #bipyramid

u/f8f82804

thanks to u/pavel for the suggestions that made this possible!

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jylikangas

remix of d/7979 by u/jylikangas

function u(t) {

eval(unescape(escape`睩瑨⡸⥦潲⡣⹷楤瑨㵩㴭㔻⬫椼㔻䌽愽㹬楮敔漨⡘㵓⡴⤪㤩⬱㔰⭡⨵㤯⡺㵪⵴┱⤬㠰⬨吽㤹⭓⡪⭴♡⤪㌰⤯稭堪㈩⥦潲⡪㴷㭢敧楮偡瑨⡦楬氨⤩ⱃ⡩⤬ⴭ樻䌨椫ㄩⱪ⬫ⱃ⡩⬱⤬樭⴩晩汬却祬攽刨䌨椩ⱔ⼲⭪⨲〩`.replace(/u(..)/g,"$1%")))

Oct 29 2018 4:08 PM UTC

}// 140/140

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3D landscape with compressor's help

Show more comments…
u/lionleaf

#landscape
u/sigveseb

Niiiice
u/rbong

Incredible!
u/joeytwiddle

Reminds me of Zarch (1987)
u/f8f82804

#d3 #wireframe #perspective #shading
u/katkip

cool

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f8f82804

remix of d/10658 by u/f8f82804

function u(t) {

for(c.width|=i=13;i--;x.lineTo(967+(y-1?0:1e3*S(p)/z),1e3*y/z))y='011112101211'[i],z=y-1?3:3+C(p=t+1.57*'012340302014'[i]);x.fill('evenodd')

Oct 25 2018 5:41 PM UTC

}// 140/140

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#d3 #perspective #octahedron

u/pavel

Here is 12 characters saved: c.width^=i=0;for(y of'111121012110')x.lineTo(960+y%2*S(p=t+1.6*'123403020140'[i++])*(z=1600/(3+y%2*C(p))),y*z);x.fill('evenodd')
u/f8f82804

using 1.6 to approximate Math.PI/2 is OK, but you should change all the 4s to 0s in the second data string, just to minimze the aggregate angular error. I used 4 for clarity, because 1.57 is accurate enough that the error is hard to notice. With 1.6 you can notice that one edge is longer than the others. c.width^=i=0;for(y of'111121012110')x.lineTo(960+y%2*S(p=t+1.6*'123003020100'[i++])*(z=1600/(3+y%2*C(p))),y*z);x.fill('evenodd')

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f8f82804

function u(t) {

c.width=480;for(i=14;i--;x.lineTo(240+(y-1?0:360*S(p)/z),360*y/z))y='0111121012110'[i],z=y-1?3:3+C(p=t+1.57*'0123403020140'[i]);x.stroke()

Oct 24 2018 11:10 PM UTC

}// 138/140

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#d3 #perspective #octahedron -- thanks to u/prplz for golf help

u/f8f82804

#wireframe

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pavel

remix of d/10516 by u/pavel

function u(t) {

c.width^=t?onmousemove=e=>X=e.x/99:X=0
for(i=99;i--;x.lineTo(960+a*S(p)/.7,540+(i&4?a:-a)))a=960/(3+C(p=(i-(i>>2))*6.28/(t&7)-X))
x.stroke()

Oct 17 2018 7:06 PM UTC

}// 140/140

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#minimal #perspective #d3 #cube #interactive

u/aleamb

awesome!

dwitter.net | #perspective