//! Provides a collection of atmospheric models.
//!//! To create a new atmospheric model, refer to [crate::model].
/// [`Nishita`](crate::collection::nishita::Nishita) sky model.
#[cfg(any(doc, feature ="nishita"))]pubmodnishita;/// [`Gradient`](crate::collection::gradient::Gradient) sky model.
#[cfg(any(doc, feature ="gradient"))]pubmodgradient;