Determines the lightmap that Unity stores environment lighting in.
Use this option to specify which type of lightmap contains the environment lighting, when your Scene uses both the Baked Global Illumination system and the Enlighten Realtime Global Illumination system.
When this is set to true, Unity stores environment lighting in real-time lightmaps. When this is set to false, Unity stores environment lighting data in baked lightmaps.
This setting affects lightmaps generated by the Baked Global Illumination system and the Enlighten Realtime Global Illumination system.
When Unity serializes this LightingSettings object as a Lighting Settings Asset, this property corresponds to the Realtime Environment Lighting property in the Lighting Settings Asset Inspector.
Additional resources: Lighting Settings Asset.