MerjTek.MonoGame.OpenVr.OpenGL 1.0.1

MerjTek.MonoGame.OpenVr

MerjTek.MonoGame.OpenVr is a library that works on WIndows to add OpenVR (SteamVR) abilities to a MonoGame project.

Help Needed

• Fill in the different hardware OVRControllerProfiles for each VR device. This is the rAxis and ulButtonPressed information for each device.
  • Can those with various VR Hardware possibly help?
• Finish getting the correct position and rotation information for the OVRController.

Nuget Packages

- MerjTek.MonoGame.OpenVr.DirectX v1.0.1
- MerjTek.MonoGame.OpenVr.OpenGL v1.0.1

How To Use

After Installing the Nuget Package:

    ...
    // In Game1.cs add the using statement below:
    using MerjTek.MonoGame.OpenVr;
    ...


    ...
    public Game1()
    {
        _graphics = new GraphicsDeviceManager(this);

        // DirectX must use the HiDef profile. OpenGL can use both profiles.
        _graphics.GraphicsProfile = GraphicsProfile.HiDef; 
    ...


    ...
    // Change the Game1 base class definiton:

    // Original (From)
    public class Game1 : Game

    // Updated (To)
    public class Game1 : VrGame
    ...


    ...
    // In the Draw method
    protected override void Draw(GameTime gameTime)
    {
        // Drawing code here
        
        // NOTE: The NearPlane, FarPlane, and ViewMatrix properties must be  
        // set anywhere before base.Draw is called.

        base.Draw(gameTime);
        
        // OPTIONAL: Render the left eye to the screen
        _spriteBatch.Begin();
        _spriteBatch.Draw(LeftEyeTarget, Vector2.Zero, Color.White);
        _spriteBatch.End();
    }
    ...


    ...
    // Add and implement DrawScene:

    /// <summary>
    /// Renders the scene for one eye. Will be called twice.
    /// </summary>
    /// <param name="eyeView">The view matrix adjusted per eye. (DO NOT MODIFY)</param>
    /// <param name="eyeProjection">The projection matrix adjusted per eye. (DO NOT MODIFY)</param>
    protected override void DrawScene(Matrix eyeView, Matrix eyeProjection)
    {
        // NOTE: Implement scene drawing code here
    }
    ...

Caveats

• Make sure you are using the HiDef profile for DirectX. OpenGL can use both the Reach and the HiDef profiles.

Building

• No problems building in Visual Studio 2022.
• The nuget for OpenGL after building contains a dependency on Monogame.Framework.WindowsDX. I have to use the .nupkg editing tool to correct the dependency to Monogame.Framework.OpenGL.

License

The MerjTek.MonoGame.OpenVr project is under the MIT License.