---
title: intrinsics
framework: realitykit
role: symbol
role_heading: Instance Property
path: realitykit/photogrammetrysample/camera-swift.struct/intrinsics
---

# intrinsics

A matrix that converts between the 2D camera plane and the 3D world coordinate space defined by the sessionID.

## Declaration

```swift
var intrinsics: simd_float3x3
```