/// <summary>
/// Start direct mode
/// </summary>
public void StartDirectMode()
{
//Avoid starting direct mode twice.
if (!enabled || _isDirectModeInitialized)
{
return;
}
_isDirectModeInitialized = false;
//Adding this check to avoid crashing the application out of Unity editor. We are receiving a callback after the application is closed.
#if UNITY_EDITOR
MetaDirectModeInterop.RegisterDebugCallback(true);
#endif
if (Application.isPlaying && enabled)
{
if (MetaDirectModeInterop.InitDirectMode())
{
//Debug.Log("Initialized direct mode session!!");
SetCameraTexture();
_isDirectModeInitialized = true;
}
else
{
enabled = false;
}
}
}
/// <summary>
/// Used in the Editor when not using PlayMode.
/// OnPostRender is called after a camera finished rendering the scene.
/// Ref: https://docs.unity3d.com/Manual/ExecutionOrder.html
/// </summary>
private void OnPostRender()
{
if (Application.isPlaying && _isDirectModeInitialized)
{
GL.IssuePluginEvent(MetaDirectModeInterop.GetRenderEventFunc(), 1);
}
}
private void SetCameraTexture()
{
_mainCamera = GetComponent <Camera>();
var rT = new RenderTexture(2560, 1440, 24, RenderTextureFormat.ARGB32);
rT.autoGenerateMips = false;
rT.filterMode = FilterMode.Point;
rT.Create();
_mainCamera.targetTexture = rT;
MetaDirectModeInterop.SetTextureFromUnity(rT.GetNativeTexturePtr());
}
/// <summary>
/// Sent to all game objects before the application is quit.
/// Ref: https://docs.unity3d.com/Manual/ExecutionOrder.html
/// </summary>
private void OnApplicationQuit()
{
#if UNITY_EDITOR
MetaDirectModeInterop.RegisterDebugCallback(false);
#endif
if (enabled && _isDirectModeInitialized)
{
//Debug.Log("Destroying the direct mode session");
MetaDirectModeInterop.DestroyDirectMode();
_isDirectModeInitialized = false;
}
}