---
title: "init(instanceCount:instanceCapacity:)"
framework: realitykit
role: symbol
role_heading: Initializer
path: "realitykit/lowlevelinstancedata/init(instancecount:instancecapacity:)"
---

# init(instanceCount:instanceCapacity:)

Creates a low-level instance data object with an instance count and capacity.

## Declaration

```swift
init(instanceCount: Int, instanceCapacity: Int) throws
```

## Parameters

- `instanceCount`: The number of instances this low-level instance data.
- `instanceCapacity`: The maximum number of instances this low-level instance data can hold.