---
title: probeGroup
framework: realitykit
role: symbol
role_heading: Instance Property
path: realitykit/diffuselightprobereceivercomponent/probegroup
---

# probeGroup

The entity providing diffuse probe lighting to this receiver.

## Declaration

```swift
var probeGroup: Entity
```

## Discussion

Discussion The referenced entity must have a DiffuseLightProbeGroupComponent attached and must exist within the scene hierarchy. The receiver’s diffuse lighting is interpolated from probes in this group based on the receiver entity’s position.