# Light Path Expression#

(LightPathExpression)

• Default object name: light_path_expression

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## Description#

Light Path Expression. Outputs the selected channels.

## Attributes#

Name Type Description
Expression string Define the light path expression to store.
Output string Aov in which data will be written.
Export Variance bool Export variance AOV if enabled.
Output Variance string Variance AOV in which the data will be written.
Variance Type long Select whether the AOV corresponds to the variance of the signal, which converges to a limit value as the number of samples increases, or to the variance of the estimator of a signal, which decreases as the number of samples increases.