# {py:mod}`simvx.core.procedural_sky`

```{py:module} simvx.core.procedural_sky
```

```{autodoc2-docstring} simvx.core.procedural_sky
:allowtitles:
```

## Module Contents

### Functions

````{list-table}
:class: autosummary longtable
:align: left

* - {py:obj}`sky_cache_key <simvx.core.procedural_sky.sky_cache_key>`
  - ```{autodoc2-docstring} simvx.core.procedural_sky.sky_cache_key
    :summary:
    ```
* - {py:obj}`preetham_cubemap_faces <simvx.core.procedural_sky.preetham_cubemap_faces>`
  - ```{autodoc2-docstring} simvx.core.procedural_sky.preetham_cubemap_faces
    :summary:
    ```
````

### Data

````{list-table}
:class: autosummary longtable
:align: left

* - {py:obj}`__all__ <simvx.core.procedural_sky.__all__>`
  - ```{autodoc2-docstring} simvx.core.procedural_sky.__all__
    :summary:
    ```
````

### API

````{py:data} __all__
:canonical: simvx.core.procedural_sky.__all__
:value: >
   ['preetham_cubemap_faces', 'sky_cache_key']

```{autodoc2-docstring} simvx.core.procedural_sky.__all__
```

````

````{py:function} sky_cache_key(sun_direction: tuple[float, float, float], turbidity: float, ground_albedo: tuple[float, float, float], size: int) -> tuple
:canonical: simvx.core.procedural_sky.sky_cache_key

```{autodoc2-docstring} simvx.core.procedural_sky.sky_cache_key
```
````

````{py:function} preetham_cubemap_faces(sun_direction: tuple[float, float, float], turbidity: float = 2.5, ground_albedo: tuple[float, float, float] = (0.15, 0.15, 0.16), size: int = 64, exposure: float = 0.18) -> list[numpy.ndarray]
:canonical: simvx.core.procedural_sky.preetham_cubemap_faces

```{autodoc2-docstring} simvx.core.procedural_sky.preetham_cubemap_faces
```
````