VisibilitySensor detects when user can see a specific object or region as they navigate the world.
The region sensed for visibility to the user is bounded by a rectangular box.
X3D Tooltips of interest:
VisibilitySensor.
X3D Specification
sections of interest:
22 Environmental sensor component,
22.2 Concepts
and
VisibilitySensor.
X3D Examples Archives
of related interest:
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