Part 6 — Follow Device

Follow the HMD

Overlay following the HMD

Remove the position code

First, remove the absolute position code we added in the previous part.

private void Start()
{
    InitOpenVR();
    overlayHandle = CreateOverlay("WatchOverlayKey", "WatchOverlay");

    var filePath = Application.streamingAssetsPath + "/sns-icon.jpg";
    SetOverlayFromFile(overlayHandle, filePath);

    SetOverlaySize(overlayHandle, 0.5f);

-   var position = new Vector3(0, 2, 3);
-   var rotation = Quaternion.Euler(0, 0, 45);
-   SetOverlayTransformAbsolute(overlayHandle, position, rotation);

    ShowOverlay(overlayHandle);

    ...

Device Index

In SteamVR, connected devices are identified with Device Index that automatically allocates from the system. …

application code openvr part rotation steamvr unity3d vr