<!--
{
  "availability" : [
    "iOS: 9.0.0 -",
    "iPadOS: 9.0.0 -",
    "macCatalyst: 13.1.0 -",
    "macOS: 10.11.0 -",
    "tvOS: 9.0.0 -",
    "visionOS: 1.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "ModelIO",
  "identifier" : "/documentation/ModelIO/MDLSkyCubeTexture/upperAtmosphereScattering",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Property",
  "symbol" : {
    "kind" : "Instance Property",
    "modules" : [
      "Model I/O"
    ],
    "preciseIdentifier" : "c:objc(cs)MDLSkyCubeTexture(py)upperAtmosphereScattering"
  },
  "title" : "upperAtmosphereScattering"
}
-->

# upperAtmosphereScattering

A factor that influences the color of the simulated sky.

```
var upperAtmosphereScattering: Float { get set }
```

## Discussion

This value affects the intensity of sunlight and the color of the sky. A value of `0.0` produces muted, dusky colors, and a value of 1.0 produces saturated, noon-like sky colors.

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)