PointLight { 
      exposedField SFFloat ambientIntensity  0       # [0,1]
      exposedField SFVec3f attenuation       1 0 0   # [0,)
      exposedField SFColor color             1 1 1   # [0,1]
      exposedField SFFloat intensity         1       # [0,1]
      exposedField SFVec3f location          0 0 0   # (-,)
      exposedField SFBool  on                TRUE 
      exposedField SFFloat radius            100     # [0,)
    }