---
title: direction
framework: arkit
role: symbol
role_heading: Instance Property
path: arkit/arraycastquery/direction
---

# direction

A vector that describes the ray’s trajectory in 3D space.

## Declaration

```swift
var direction: simd_float3 { get }
```

## See Also

### Interpreting the Ray

- [origin](arkit/arraycastquery/origin.md)