Steam VR Fade camera

I'm just going to leave this here, for if someone else is having trouble getting the steamvr fading to work.

What worked for me was to add the SteamVR_Fade script from the steamvr unity package to the camera child object under the [CameraRig] which has the SteamVR_Camera script on it. I believe in the standard prefab its the "Camera (eye)" object.

Then when I want to fade I just call the static SteamVR_Fade.Start method.

Test script I Used:

 using UnityEngine;
 
 public class SteamVrFadeTest : MonoBehaviour 
 {
     private float _fadeDuration = 2f;
 
     private void Start()
     {
         FadeToWhite();
         Invoke("FadeFromWhite", _fadeDuration);
     }

     private void FadeToWhite()
     {
         //set start color
         SteamVR_Fade.Start(Color.clear, 0f);
         //set and start fade to
         SteamVR_Fade.Start(Color.white, _fadeDuration);
     }

     private void FadeFromWhite()
     {
         //set start color
         SteamVR_Fade.Start(Color.white, 0f);
         //set and start fade to
         SteamVR_Fade.Start(Color.clear, _fadeDuration);
     }
 }

Addiction to @dsentence 's answer, if you want to fade out on scene change, you can simply use the SteamVR_LoadLevel:

 Valve.VR.SteamVR_LoadLevel.Begin(sceneName);

P.S. you can input the background color and fade out time.