Adding fog
fog4.wrl
 

	

#VRML V2.0 utf8
Fog {
    color 0.0 0.0 0.0
    fogType "EXPONENTIAL"
    visibilityRange 30.0
}
Background {
    skyColor 0.0 0.0 0.0
}
Inline {
    url "fogworld.wrl"
}