# Sky reference

Learn about the properties that you can use to control the look and behaviour of HDRP skies.

| Page | Description |
| - | - |
|[Gradient Sky Volume Override reference](gradient-sky-volume-override-reference.md)|Properties in the Gradient Sky volume override.|
|[HDRI Sky Volume Override reference](hdri-sky-volume-override-reference.md)|Properties in the HDRI Sky volume override.|
|[Physically Based Sky Volume Override reference](physically-based-sky-volume-override-reference.md)|Properties in the Physically Based Sky volume override.|
|[Visual Environment Volume Override reference](visual-environment-volume-override-reference.md)|Properties in the Visual Environment volume override.|