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 # Visibility 

 Last update: 17.07.2025 

## Description

Evaluates the visibility of an object. Returns 0 is the object is visible, 1 otherwise.

## Syntax

object.Visibility(short nAge, double dBackgroundluminance, double dTargetLuminance ,double dPreviousAdaptationLuminance, double dObservationTime) As Short

- *object*: Virtual Human Vision Lab object
- *nAge*: observer age (input)
- *dBackgroundluminance*: background luminance in cd/m² as double (input)
- *dTargetLuminance*: target luminance in cd/m² (input)
- *dPreviousAdaptationLuminance*: previous adaptation luminance in cd/m² (input)
- *dObservationTime*: observation time in seconds (input)