DEF layer Switch {
  whichChoice @layer
  choice [
  DEF root Transform {
  children [
  DEF display displaybox {
  url "eye.gif"
  show @display
  alpha 0.5
  shape @shape
  scene @scene
  }
  DEF monitor dlp-monitor { string "" translation 2.5 -2 0 scale 0.2 0.2 0.2 }
  DEF right avatar-@right {
      visible -1
      persona @r_persona
      dialog @r_bulb
      translation @r_p
      rotation 0 1 0 -1.40
      type 0
      color @r_color
      transparency @r_a
      bulb_translation -2.0 0 0
      bulb_scale 2.5 1 1
      text @r_text
      text_scale 0.5 1 1
      background @l_bg
      ##string [ "     A" "     V" "     I" "     D" ] 
      }
  DEF left avatar-@left {
      visible -1
      persona @l_persona
      dialog @l_bulb
      type 1
      color @l_color
      translation @l_p
      rotation 0 1 0 1.40
      bulb_scale 2.5 1.5 1 
      transparency @l_a
      text_translation -1 0 0
      text_scale 0.7 1 1
      text 1 1 0
      background @r_bg
      }
  ]}
  
  Layer3D {
  depth -10   
  translation 0 0
  size 1 1 
  viewpoint Viewpoint { position 0 0 10 }
  navigationInfo NavigationInfo { headlight TRUE type ["NONE"] }
  children [
  Transform {
  ##translation 0 0 3
  scale 1.8 1.8 1.8
  children [
  DirectionalLight { }
  USE root
  ]}
  ]}
  ]} ## layer