ScriptableRenderPipeline/Assets/TestScenes/HDTest/GlobalIlluminationTest/TestRealtime.cs

using UnityEngine;
using UnityEngine.Experimental.Rendering.HDPipeline;

public class TestRealtime : MonoBehaviour
{
    public GameObject m_SceneSettings = null;
    public float m_RotationSpeed = 50.0f;

    // Use this for initialization
    void Start()
    {
    }

    // Update is called once per frame
    void Update()
    {
        if (m_SceneSettings != null)
        {
            HDRISkySettings skyParams = m_SceneSettings.GetComponent<HDRISkySettings>();
            if (skyParams)
                skyParams.rotation = (skyParams.rotation + Time.deltaTime * m_RotationSpeed) % 360.0f;
        }
    }
}