void UpdateDefaultExternalCamera()
{
#if UNITY_EDITOR_WIN || UNITY_STANDALONE_WIN || OVR_ANDROID_MRC
// always build a 1080p external camera
const int cameraPixelWidth = 1920;
const int cameraPixelHeight = 1080;
const float cameraAspect = (float)cameraPixelWidth / cameraPixelHeight;
string cameraName = "UnityExternalCamera";
OVRPlugin.CameraIntrinsics cameraIntrinsics = new OVRPlugin.CameraIntrinsics();
OVRPlugin.CameraExtrinsics cameraExtrinsics = new OVRPlugin.CameraExtrinsics();
// intrinsics
cameraIntrinsics.IsValid = OVRPlugin.Bool.True;
cameraIntrinsics.LastChangedTimeSeconds = Time.time;
float vFov = defaultExternalCamera.fieldOfView * Mathf.Deg2Rad;
float hFov = Mathf.Atan(Mathf.Tan(vFov * 0.5f) * cameraAspect) * 2.0f;
OVRPlugin.Fovf fov = new OVRPlugin.Fovf();
fov.UpTan = fov.DownTan = Mathf.Tan(vFov * 0.5f);
fov.LeftTan = fov.RightTan = Mathf.Tan(hFov * 0.5f);
cameraIntrinsics.FOVPort = fov;
cameraIntrinsics.VirtualNearPlaneDistanceMeters = defaultExternalCamera.nearClipPlane;
cameraIntrinsics.VirtualFarPlaneDistanceMeters = defaultExternalCamera.farClipPlane;
cameraIntrinsics.ImageSensorPixelResolution.w = cameraPixelWidth;
cameraIntrinsics.ImageSensorPixelResolution.h = cameraPixelHeight;
// extrinsics
cameraExtrinsics.IsValid = OVRPlugin.Bool.True;
cameraExtrinsics.LastChangedTimeSeconds = Time.time;
cameraExtrinsics.CameraStatusData = OVRPlugin.CameraStatus.CameraStatus_Calibrated;
cameraExtrinsics.AttachedToNode = OVRPlugin.Node.None;
Camera mainCamera = Camera.main;
OVRCameraRig cameraRig = mainCamera.GetComponentInParent <OVRCameraRig>();
if (cameraRig)
{
Transform trackingSpace = cameraRig.trackingSpace;
OVRPose trackingSpacePose = trackingSpace.ToOVRPose(false);
OVRPose cameraPose = defaultExternalCamera.transform.ToOVRPose(false);
OVRPose relativePose = trackingSpacePose.Inverse() * cameraPose;
cameraExtrinsics.RelativePose = relativePose.ToPosef();
}
else
{
cameraExtrinsics.RelativePose = OVRPlugin.Posef.identity;
}
if (!OVRPlugin.SetDefaultExternalCamera(cameraName, ref cameraIntrinsics, ref cameraExtrinsics))
{
Debug.LogError("SetDefaultExternalCamera() failed");
}
#endif
}
void Initialize()
{
#if UNITY_EDITOR_WIN || UNITY_STANDALONE_WIN || OVR_ANDROID_MRC
if (inited)
{
return;
}
#if OVR_ANDROID_MRC
if (!OVRPlugin.Media.GetInitialized())
{
return;
}
#else
if (!OVRPlugin.IsMixedRealityInitialized())
{
return;
}
#endif
OVRPlugin.ResetDefaultExternalCamera();
Debug.LogFormat("GetExternalCameraCount before adding manual external camera {0}", OVRPlugin.GetExternalCameraCount());
UpdateDefaultExternalCamera();
Debug.LogFormat("GetExternalCameraCount after adding manual external camera {0}", OVRPlugin.GetExternalCameraCount());
// obtain default FOV
{
OVRPlugin.CameraIntrinsics cameraIntrinsics;
OVRPlugin.CameraExtrinsics cameraExtrinsics;
OVRPlugin.GetMixedRealityCameraInfo(0, out cameraExtrinsics, out cameraIntrinsics);
defaultFov = cameraIntrinsics.FOVPort;
}
inited = true;
#if OVR_ANDROID_MRC
readyToSwitch = true;
#endif
#endif
}
// Update is called once per frame
void Update()
{
#if UNITY_EDITOR_WIN || UNITY_STANDALONE_WIN || OVR_ANDROID_MRC
if (!inited)
{
Initialize();
return;
}
if (!defaultExternalCamera)
{
return;
}
#if OVR_ANDROID_MRC
if (!OVRPlugin.Media.GetInitialized())
{
return;
}
#else
if (!OVRPlugin.IsMixedRealityInitialized())
{
return;
}
#endif
if (OVRInput.GetDown(OVRInput.Button.One))
{
if (currentMode == CameraMode.ThirdPerson)
{
currentMode = CameraMode.Normal;
}
else
{
currentMode = currentMode + 1;
}
Debug.LogFormat("Camera mode change to {0}", currentMode);
}
if (currentMode == CameraMode.Normal)
{
UpdateDefaultExternalCamera();
OVRPlugin.OverrideExternalCameraFov(0, false, new OVRPlugin.Fovf());
OVRPlugin.OverrideExternalCameraStaticPose(0, false, OVRPlugin.Posef.identity);
}
else if (currentMode == CameraMode.OverrideFov)
{
OVRPlugin.Fovf fov = defaultFov;
OVRPlugin.Fovf newFov = new OVRPlugin.Fovf();
newFov.LeftTan = fov.LeftTan * 2.0f;
newFov.RightTan = fov.RightTan * 2.0f;
newFov.UpTan = fov.UpTan * 2.0f;
newFov.DownTan = fov.DownTan * 2.0f;
OVRPlugin.OverrideExternalCameraFov(0, true, newFov);
OVRPlugin.OverrideExternalCameraStaticPose(0, false, OVRPlugin.Posef.identity);
if (!OVRPlugin.GetUseOverriddenExternalCameraFov(0))
{
Debug.LogWarning("FOV not overridden");
}
}
else if (currentMode == CameraMode.ThirdPerson)
{
Camera camera = GetComponent <Camera>();
if (camera == null)
{
return;
}
float vFov = camera.fieldOfView * Mathf.Deg2Rad;
float hFov = Mathf.Atan(Mathf.Tan(vFov * 0.5f) * camera.aspect) * 2.0f;
OVRPlugin.Fovf fov = new OVRPlugin.Fovf();
fov.UpTan = fov.DownTan = Mathf.Tan(vFov * 0.5f);
fov.LeftTan = fov.RightTan = Mathf.Tan(hFov * 0.5f);
OVRPlugin.OverrideExternalCameraFov(0, true, fov);
Camera mainCamera = Camera.main;
OVRCameraRig cameraRig = mainCamera.GetComponentInParent <OVRCameraRig>();
if (cameraRig)
{
Transform trackingSpace = cameraRig.trackingSpace;
OVRPose trackingSpacePose = trackingSpace.ToOVRPose(false);
OVRPose cameraPose = transform.ToOVRPose(false);
OVRPose relativePose = trackingSpacePose.Inverse() * cameraPose;
OVRPlugin.Posef relativePosef = relativePose.ToPosef();
OVRPlugin.OverrideExternalCameraStaticPose(0, true, relativePosef);
}
else
{
OVRPlugin.OverrideExternalCameraStaticPose(0, false, OVRPlugin.Posef.identity);
}
if (!OVRPlugin.GetUseOverriddenExternalCameraFov(0))
{
Debug.LogWarning("FOV not overridden");
}
if (!OVRPlugin.GetUseOverriddenExternalCameraStaticPose(0))
{
Debug.LogWarning("StaticPose not overridden");
}
}
#endif
}