## you cannot use inline to connect!
  
  Viewpoint { position 0 0 10 }
  Background { skyColor 1 0 0 }
  
  DEF layer Layer3D
  { 
     depth -100
     translation 0.1 0.05
     size 0.8 0.2
  
     background Background { skyColor [ 0 1 1 ] }
     viewpoint Viewpoint { position 0 0 10 }
     children [
                  Transform {
                  translation 0 0 -10
                  scale 100 100 100
                  children [
                  ## needs light
                  DEF inline Inline { url "@vr-web3d-light-cone.wrl" }
                  ] }
                  ]
  }
  
  Transform {
  scale 20 20 20
  translation -2 0 0
  children [
                ## does not need light
  Inline { url "@vr-web3d-light-cone.wrl" }
  ]}
  
  Transform {
  scale 20 20 20
  translation 2 0 0
  children [
                ## does not need light
  Inline { url "@vr-web3d-cone.wrl" }
  ]}