Cinematic rotation of HDRI sky

Questions & Answers
1

I’m trying to refrence the rotation in the HDRI sky to have a rotating loop of the sky (adding a nice effect) except I’m having trouble getting the reference to the component with a script.
https://docs.unity3d.com/Packages/com.unity.render-pipelines.high-definition@5.3/manual/HDRI-Sky.html

public class SkyRotator : MonoBehaviour
{
    public GameObject sky;
    private void Awake()
    {
        sky = GameObject.GetComponent<HDRISky>();
    }
}

I figured if I had the reference I can just create a larp or loop over two values to rotate. Am I approaching this correctly or is the HDRI sky map a whole different beast of it’s own?

2

You need to get the HDRISky class from Volume class, and then Lerp the rotation value.

Something like this:

[SerializeField]
Volume volume;
HDRISky sky;
[SerializeField]
float skyRotationAmountPerFrame = 0.1f;

void Awake()
{
     volume.profile.TryGet(out sky)
}

void Update()
{
     sky.rotation.value = Mathf.Lerp(sky.rotation.value, sky.rotation.value + 10, skyRotationAmountPerFrame * Time.deltaTime);
if (sky.rotation.value == sky.rotation.max)
{
      sky.rotation.value = 0;
}

}