void OnDisable()
{
StopAllCoroutines();
SteamVR_Events.InputFocus.Remove(OnInputFocus);
SteamVR_Events.System(EVREventType.VREvent_Quit).Remove(OnQuit);
SteamVR_Events.System(EVREventType.VREvent_RequestScreenshot).Remove(OnRequestScreenshot);
#if UNITY_2017_1_OR_NEWER
Application.onBeforeRender -= OnBeforeRender;
#else
Camera.onPreCull -= OnCameraPreCull;
#endif
}
void OnEnable()
{
StartCoroutine(RenderLoop());
SteamVR_Events.InputFocus.Listen(OnInputFocus);
SteamVR_Events.System(EVREventType.VREvent_Quit).Listen(OnQuit);
SteamVR_Events.System(EVREventType.VREvent_RequestScreenshot).Listen(OnRequestScreenshot);
#if UNITY_2017_1_OR_NEWER
Application.onBeforeRender += OnBeforeRender;
#else
Camera.onPreCull += OnCameraPreCull;
#endif
var vr = SteamVR.instance;
if (vr == null)
{
enabled = false;
return;
}
var types = new EVRScreenshotType[] { EVRScreenshotType.StereoPanorama };
OpenVR.Screenshots.HookScreenshot(types);
}
void Update()
{
// Force controller update in case no one else called this frame to ensure prevState gets updated.
SteamVR_Controller.Update();
// Dispatch any OpenVR events.
var system = OpenVR.System;
if (system != null)
{
var vrEvent = new VREvent_t();
var size = (uint)System.Runtime.InteropServices.Marshal.SizeOf(typeof(VREvent_t));
for (int i = 0; i < 64; i++)
{
if (!system.PollNextEvent(ref vrEvent, size))
{
break;
}
switch ((EVREventType)vrEvent.eventType)
{
case EVREventType.VREvent_InputFocusCaptured: // another app has taken focus (likely dashboard)
if (vrEvent.data.process.oldPid == 0)
{
SteamVR_Events.InputFocus.Send(false);
}
break;
case EVREventType.VREvent_InputFocusReleased: // that app has released input focus
if (vrEvent.data.process.pid == 0)
{
SteamVR_Events.InputFocus.Send(true);
}
break;
case EVREventType.VREvent_ShowRenderModels:
SteamVR_Events.HideRenderModels.Send(false);
break;
case EVREventType.VREvent_HideRenderModels:
SteamVR_Events.HideRenderModels.Send(true);
break;
default:
SteamVR_Events.System((EVREventType)vrEvent.eventType).Send(vrEvent);
break;
}
}
}
// Ensure various settings to minimize latency.
Application.targetFrameRate = -1;
Application.runInBackground = true; // don't require companion window focus
QualitySettings.maxQueuedFrames = -1;
QualitySettings.vSyncCount = 0; // this applies to the companion window
if (lockPhysicsUpdateRateToRenderFrequency && Time.timeScale > 0.0f)
{
var vr = SteamVR.instance;
if (vr != null)
{
var timing = new Compositor_FrameTiming();
timing.m_nSize = (uint)System.Runtime.InteropServices.Marshal.SizeOf(typeof(Compositor_FrameTiming));
vr.compositor.GetFrameTiming(ref timing, 0);
Time.fixedDeltaTime = Time.timeScale / vr.hmd_DisplayFrequency;
}
}
}