> For the complete documentation index, see [llms.txt](https://docs.ladybug.tools/hb-radiance-primer/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ladybug.tools/hb-radiance-primer/components/3_recipes/ambient_resolution.md).

# Ambient Resolution

![](/files/7xAgvvQ5fUu3MdsgKHBc)

![](/files/qSH1U1ovvFIiO8iZaQcF) - [\[source code\]](https://github.com/ladybug-tools/honeybee-grasshopper-radiance/blob/master/honeybee_grasshopper_radiance/src//HB%20Ambient%20Resolution.py)

Get the recommended ambient resoluation (-ar) needed to resolve details with a given dimension in model units.

This recommendation is derived from the overall dimensions of the Radince scene being simulated as well as the ambient accuracy (-aa) being used in the simulation.

The result from this component can be plugged directly into the additional\_par\_ of the "HB Radiance Parameter" component or into the radiance\_par of any recipe components.

### Inputs

* #### model \[Required]

The Honeybee Model being used for Radiance simulation.

* #### detail\_dim \[Required]

A number in model units that represents the dimension of the smallest detail that must be resolved in the Radiance simulation.

* #### aa

An number for ambient accuracy (-aa) being used in the Radiance smiulation. This value should be matched between this component and the component into which the ouput ar is being input. (Default: 0.25 for low-resolution Radiance studies).

### Outputs

* #### ar

The abmient resolution needed to resolve the *detail\_dim as a text string. These can be plugged into the additional\_par* of the "HB Radiance Parameter" component or the radiance\_par\_ input of the recipes.