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# makeInstanceTransformResource(instanceCapacity:)

Creates a transform buffer resource for GPU instancing.

```
final func makeInstanceTransformResource(instanceCapacity: Int) throws -> LowLevelInstanceTransformResource
```

## Parameters

`instanceCapacity`

The maximum number of instances the buffer holds.

## Return Value

A newly created [`LowLevelInstanceTransformResource`](/documentation/RealityKit/LowLevelInstanceTransformResource).

## Discussion

The buffer stores up to `instanceCapacity` model-to-local transforms as `float4x4`
values. Assign the result to a [`LowLevelMeshInstance`](/documentation/RealityKit/LowLevelMeshInstance) via
[`setInstanceTransforms(_:)`](/documentation/RealityKit/LowLevelMeshInstance/setInstanceTransforms(_:)) to enable GPU instancing.

> Throws: An error if the allocation fails.

---

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