---
title: "init(samplingQuality:specularCubeDimension:compression:)"
framework: realitykit
role: symbol
role_heading: Initializer
path: "realitykit/environmentresource/createoptions/init(samplingquality:specularcubedimension:compression:)"
---

# init(samplingQuality:specularCubeDimension:compression:)

Creates an environment creation options structure.

## Declaration

```swift
init(samplingQuality: EnvironmentResource.CreateOptions.SamplingQuality = .fast, specularCubeDimension: Int? = nil, compression: EnvironmentResource.Compression = .default)
```

## Parameters

- `samplingQuality`: The skybox sampling quality for lighting textures.
- `specularCubeDimension`: The dimension of the computed specular cubemap for material reflections.
- `compression`: The compression to apply to environment textures.