---
title: position
framework: Compute Graph
role: symbol
role_heading: Instance Property
platforms: [iOS 27.0+, iPadOS 27.0+, Mac Catalyst 27.0+, macOS 27.0+, tvOS 27.0+, visionOS 27.0+]
path: computegraph/elementspawnparameters/position
---

# position

The initial 3D position of the particle in world space coordinates.

## Declaration

```swift
var position: SIMD3<Float> { get set }
```

## Discussion

Discussion This determines where the particle will first appear when spawned. The coordinate system follows RealityKit’s conventions with Y pointing up.