// GUI
/// <summary>
/// Raises the GU event.
/// </summary>
void OnGUI()
{
// Important to keep from skipping render events
if (Event.current.type != EventType.Repaint)
{
return;
}
// Fade in screen
if (AlphaFadeValue > 0.0f)
{
AlphaFadeValue -= Mathf.Clamp01(Time.deltaTime / FadeInTime);
if (AlphaFadeValue < 0.0f)
{
AlphaFadeValue = 0.0f;
}
else
{
GUI.color = new Color(0, 0, 0, AlphaFadeValue);
GUI.DrawTexture(new Rect(0, 0, Screen.width, Screen.height), FadeInTexture);
return;
}
}
// We can turn on the render object so we can render the on-screen menu
if (GUIRenderObject != null)
{
if (ScenesVisible ||
ShowVRVars ||
Crosshair.IsCrosshairVisible() ||
RiftPresentTimeout > 0.0f ||
DeviceDetectionTimeout > 0.0f ||
VisionGuide.GetFadeAlphaValue() > 0.0f)
{
GUIRenderObject.SetActive(true);
}
else
{
GUIRenderObject.SetActive(false);
}
}
//***
// Set the GUI matrix to deal with portrait mode
Vector3 scale = Vector3.one;
Matrix4x4 svMat = GUI.matrix; // save current matrix
// substitute matrix - only scale is altered from standard
GUI.matrix = Matrix4x4.TRS(Vector3.zero, Quaternion.identity, scale);
// Cache current active render texture
RenderTexture previousActive = RenderTexture.active;
// if set, we will render to this texture
if (GUIRenderTexture != null)
{
RenderTexture.active = GUIRenderTexture;
GL.Clear(false, true, new Color(0.0f, 0.0f, 0.0f, 0.0f));
}
// Update OVRGUI functions (will be deprecated eventually when 2D renderingc
// is removed from GUI)
GuiHelper.SetFontReplace(FontReplace);
// If true, we are displaying information about the Rift not being detected
// So do not show anything else
if (GUIShowRiftDetected() != true)
{
GUIShowLevels();
GUIShowVRVariables();
}
// The cross-hair may need to go away at some point, unless someone finds it
// useful
Crosshair.OnGUICrosshair();
// Since we want to draw into the main GUI that is shared within the MainMenu,
// we call the OVRVisionGuide GUI function here
VisionGuide.OnGUIVisionGuide();
// Restore active render texture
RenderTexture.active = previousActive;
// ***
// Restore previous GUI matrix
GUI.matrix = svMat;
}
