cw1.pov

#include "colors.inc"
#include "shapes.inc"
#include "textures.inc"

camera {
  location <5, 9, -15>
  look_at <0, 0, 0>
}   

light_source {
  <0, 10, -10> White
}                   
light_source {
  <3, 20, 5> White
}

cylinder {
  <5, 0, 5>
  <5, 0, -5>
  2
  texture {pigment {color Green}}
}                   
cylinder {
  <-5, 0, 5>
  <-5, 0, -5>
  2
  texture {pigment {color Green}}
}           

cylinder {
  <5, 0, 5.5>
  <5, 0, -5.5>
  1
  texture {pigment {color Black}}
}            
cylinder {
  <-5, 0, 5.5>
  <-5, 0, -5.5>
  1
  texture {pigment {color Black}}
}     

intersection {
  box {
    <-8, 0, 4>
    <8, 4, -4>
    texture {pigment {color Blue}}
  }
  sphere {
    <0, 0, 0>
    9
    texture {pigment {color Yellow}}
  }
}      

difference {
  box {
    <-5, 4, 4>
    <5, 7, -4>
    texture {pigment {color Red}}
  }
  box {
    <-4.5, 3.5, 5>
    <4.5, 6.5, -5>
    texture {pigment {color White}}
  }
}

cw11.pov

#include "colors.inc"
#include "shapes.inc"
#include "textures.inc"

camera {
  location <5, 9, -15>
  look_at <0, 0, 0>
}   

light_source {
  <0, 10, -10> White
}                   
light_source {
  <3, 20, 5> White
}

sphere {
 <0, -5, 0>
 3
 texture {pigment {color Red}}
}     
sphere {
 <0, 0, 0>
 2
 texture {pigment {color Red}}
}      
  
cylinder {
  <0, 2, 0>
  <0, 2.5, 0>
  2.5
  texture {pigment {color Brown}}
}
cylinder {
  <0, 2.5, 0>
  <0, 5, 0>
  1
  texture {pigment {color Brown}}
}