Light probes

General

Light probes are the Larian Engine's system for indirect lighting and reflections.
In short, a light probe is an object you place in the level. It looks at the surrounding lighting and objects and uses that information to calculate realistic indirect lighting.
This includes light bouncing off of objects, causing colors to carry over to nearby objects (this effect is called color bleeding).
It also provides accurate reflections of surrounding objects.

Types

There are 2 types of light probes, used for different parts of the overall lighting.

Distant

Distant probes are used to account for far away lighting information: the sun and sky.
It uses the information of the surrounding atmosphere to apply an approximation of sun and sky light bouncing and color bleeding to everything in that atmosphere.
Since the probe contains atmosphere information, it applies to everything in that atmosphere. So in editor terms, you only need one distant probe per atmosphere trigger.

For more information on atmospheres, look here: Atmosphere panel

More information on atmosphere triggers can be found here: Triggers