Virtual Reality

C3DE supports some Virtual Reality devices. Supported VR vendors are OpenVR, OSVR and OpenHMD. You can also simulate the VR view using the ’NullVRService’.

VR Vendor	Status	Platform
OpenVR	Ready	DirectX / DesktopGL
OSVR	Side by side only (no RenderManager)	Desktop GL
OpenHMD	Need testers	DirectX / DesktopGL
Oculus Rift	OK but No controllers support	DirectX

How to enable VR support in your game

public class DemoVRScene : Scene
{
    public DemoVRScene() : base("Virtual Reality demo") { }

    public override void Initialize()
    {
        base.Initialize();

        // Load your content in this method (models, lights, etc...)
        BuildYourScene();

        var vrEnabled = Application.Engine.Renderer.SetVREnabled(true);
        Debug.Log($"VR is {(vrEnabled ? "" : "NOT" )} unabled");
    }

    public override void Update()
    {
        // Gets the VR Service.
        var vrService = VRManager.ActiveService;
        if (vrService == null)
            return;

        // Gets position and orientation of the left controller.
        var position = vrService.GetLocalPosition(0, ref position);
        var rotation = vrService.GetLocalRotation(0, ref quaternion);

        // Indicates if the right trigger was pressed.
        if (vrService.GetButtonDown(1, XRButton.Trigger))
        Debug.Log("Right trigger pressed!");

        // Gets the left touchpad value.
        Debug.Log($"TouchPad {vrService.GetAxis2D(0, XRAxis2D.Touchpad)}");
    }
}

Native libraries

Don't forget to copy the libraries (dll, so) in the folder of the builded executable. By example for OpenVR, you've to copy ’openvr_api.dll’ (which is located in the steamvr installation folder). For the Oculus Rift you've to copy the dll OculusRift.dll located in the Deps folder to your bin folder.

Notes

The projection and view matrix of the main camera are set when the scene is rendered, so if you want to move it, attach it on a parent GameObject and move it.