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Fail:Borromean Rings Illusion.png

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Ringkasan

Keterangan
English: The Borromean rings. This picture is an optical illusion: three flat circles cannot actually be connected in this way.
Tarikh
Sumber Karya sendiri
Pengarang Jim.belk
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Perlesenan

Public domain Saya selaku pemegang hak cipta karya ini melepaskan karya ini ke dalam domain awam di seluruh dunia.
Di sesetengah negara, undang-undangnya mungkin tidak mengizinkan; jika begitu:
Saya memberi sesiapa sahaja hak untuk menggunakan karya ini untuk apa jua tujuan, tanpa sebarang syarat, melainkan undang-undang menetapkan syarat-syarat sedemikian.

Source

This image was created using POV-Ray for Windows, version 3.6. The image was rendered to an 1800 x 1800 square, using 0.3 anti-aliasing, and then cropped and compressed using pngcrush.

#include "colors.inc"

background { color White }

global_settings { assumed_gamma 1.0}

camera
  {
  location <0, 0, -250000>
  right <1,0,0> up <0,1,0>
  look_at  <0, 0, 0>
  angle 5/10000
  }

light_source
  {
  <0, 200000, -500000>
  color White
  area_light <50000, 0, 0>, <0, 50000, 0>, 10, 10  /* very slow, decrease 10 to 2 for experiments */
  adaptive 3
  }

#declare r_tube = 0.07;  // thickness (radius) of tube

#declare sep = 0.2; // apparent height seperation between crossing rings

#declare shiny = finish {
    ambient 0.15
    diffuse 0.85
    brilliance 2
    phong 0.25
    phong_size 7.5
    }

#declare GREEN_TORUS = torus
  {
  0.6, r_tube              // major and minor radius
  rotate -90*x      // so we can see it from the top
  translate 0.3*<cos(pi/6),sin(pi/6),0>+<0,.1,0>
  pigment { color rgb <0,0.75,0> }
  finish {shiny}
  }

#declare RED_TORUS = torus
  {
  0.6, r_tube              // major and minor radius
  rotate -90*x      // so we can see it from the top
  translate 0.3*<-cos(pi/6),sin(pi/6),0> +<0,.1,0>
  pigment { color rgb <1,0,0> }
  finish {shiny}
  }

#declare BLUE_TORUS = torus
  {
  0.6, r_tube              // major and minor radius
  rotate -90*x      // so we can see it from the top
  translate 0.3*<0,-1,0>+<0,.1,0>
  pigment { color rgb <0,0.25,1> }
  finish {shiny}
  }
  
object { RED_TORUS }
object { GREEN_TORUS }
object { BLUE_TORUS }  

intersection
  {
  object { RED_TORUS translate <0,0,-100-sep> }
  cylinder { <0,-0.3,0>, <0,-0.3,-105>, 0.25 }
  }
intersection
  {
  object { GREEN_TORUS translate <0,0,-100> }
  cylinder { <0,-0.3,0>, <0,-0.3,-105>, 0.25 }
  }

intersection
  {
  object { BLUE_TORUS translate <0,0,-100-sep> }
  cylinder { <-0.58,-0.24,-95>, <-0.58,-0.24,-105>, 0.25 }
  }
intersection
  {
  object { RED_TORUS translate <0,0,-100> }
  cylinder { <-0.58,-0.24,-95>, <-0.58,-0.24,-105>, 0.25 }
  }

intersection
  {
  object { GREEN_TORUS translate <0,0,-100-sep> }
  cylinder { <0.58,-0.24,-95>, <0.58,-0.24,-105>, 0.25 }
  }
intersection
  {
  object { BLUE_TORUS translate <0,0,-100> }
  cylinder { <0.58,-0.24,-95>, <0.58,-0.24,-105>, 0.25 }
  }

intersection
  {
  object { GREEN_TORUS translate <0,0,-100-sep> }
  cylinder { <-0.29,0.35,-95>, <-0.29,0.35,-105>, 0.25 }
  }
intersection
  {
  object { BLUE_TORUS translate <0,0,-100> }
  cylinder { <-0.29,0.35,-95>, <-0.29,0.35,-105>, 0.25 }
  }

intersection
  {
  object { BLUE_TORUS translate <0,0,-100-sep> }
  cylinder { <0.29,0.35,-95>, <0.29,0.35,-105>, 0.25 }
  }
intersection
  {
  object { RED_TORUS translate <0,0,-100> }
  cylinder { <0.29,0.35,-95>, <0.29,0.35,-105>, 0.25 }
  }

intersection
  {
  object { RED_TORUS translate <0,0,-100-sep> }
  cylinder { <0,0.85,-95>, <0,0.85,-105>, 0.25 }
  }
intersection
  {
  object { GREEN_TORUS translate <0,0,-100> }
  cylinder { <0,0.85,-95>, <0,0.85,-105>, 0.25 }
  }

plane
  {
  <0,0,-1>, -0.33
  pigment { color White }
  finish
    {
    ambient 0.35
    diffuse 0.65
    }
  }

Captions

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menggambarkan

26 Mac 2010

media type Inggeris

image/png

ce357b0c94cb1f73c87bbf3f5527a2a2a0e89cba

617,104 bait

1,713 piksel

1,726 piksel

Sejarah fail

Klik pada tarikh/waktu untuk melihat rupa fail tersebut pada waktu itu.

Tarikh/WaktuGambar kenitUkuranPenggunaKomen
semasa14:13, 27 Mac 2010Gambar kenit bagi versi pada 14:13, 27 Mac 20101,726 × 1,713 (603 KB)AnonMoosJim.belk, hate to be hypercritical, but it needs a little bit more cropping...
16:44, 26 Mac 2010Gambar kenit bagi versi pada 16:44, 26 Mac 20101,800 × 1,750 (607 KB)Jim.belk{{Information |Description={{en|1=The Borromean rings. This picture is an optical illusion: three flat circles cannot actually be connected in this way.}} |Source={{own}} |Author=Jim.belk |Date=2010-03-26 |Permission= |other_versions= }

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