/// <summary>
/// Sets the camera orientation.
/// </summary>
void SetCameraOrientation()
{
#if (!UNITY_ANDROID || UNITY_EDITOR)
// Main camera has a depth of 0, so it will be rendered first
if (camera.depth == 0.0f)
{
// If desired, update parent transform y rotation here
// This is useful if we want to track the current location of
// of the head.
// TODO: Future support for x and z, and possibly change to a quaternion
// NOTE: This calculation is one frame behind
if (CameraController.TrackerRotatesY == true)
{
Vector3 a = camera.transform.rotation.eulerAngles;
a.x = 0;
a.z = 0;
transform.parent.transform.eulerAngles = a;
}
/*
* else
* {
* // We will still rotate the CameraController in the y axis
* // based on the fact that we have a Y rotation being passed
* // in from above that still needs to take place (this functionality
* // may be better suited to be calculated one level up)
* Vector3 a = Vector3.zero;
* float y = 0.0f;
* CameraController.GetYRotation(ref y);
* a.y = y;
* gameObject.transform.parent.transform.eulerAngles = a;
* }
*/
// Get camera orientation and position from vision
Quaternion camOrt = Quaternion.identity;
Vector3 camPos = Vector3.zero;
OVRDevice.GetCameraPositionOrientation(ref camPos, ref camOrt);
if (CameraController.EnablePosition)
{
CameraPosition = camPos;
}
bool useOrt = (CameraController.EnableOrientation && !(CameraController.TimeWarp && CameraController.FreezeTimeWarp));
if (useOrt)
{
SampleStartRotation();
CameraOrientation = camOrt;
}
// This needs to go as close to reading Rift orientation inputs
OVRDevice.ProcessLatencyInputs();
}
// Calculate the rotation Y offset that is getting updated externally
// (i.e. like a controller rotation)
float yRotation = 0.0f;
float xRotation = 0.0f;
CameraController.GetYRotation(ref yRotation);
CameraController.GetXRotation(ref xRotation);
Quaternion qp = Quaternion.Euler(xRotation, yRotation, 0.0f);
Vector3 dir = qp * Vector3.forward;
qp.SetLookRotation(dir, Vector3.up);
// Multiply the camera controllers offset orientation (allow follow of orientation offset)
Quaternion orientationOffset = Quaternion.identity;
CameraController.GetOrientationOffset(ref orientationOffset);
qp = orientationOffset * qp * CameraOrientationOffset;
// Multiply in the current HeadQuat (q is now the latest best rotation)
Quaternion q = qp * CameraOrientation;
// * * *
// Update camera rotation
camera.transform.rotation = q;
// * * *
// Update camera position (first add Offset to parent transform)
camera.transform.localPosition = NeckPosition;
// Adjust neck by taking eye position and transforming through q
// Get final camera position as well as the clipping difference
// (to allow for absolute location of center of camera grid space)
Vector3 newCamPos = Vector3.zero;
CameraPositionOffsetAndClip(ref CameraPosition, ref newCamPos);
// Update list of game objects with new CameraOrientation / newCamPos here
// For example, this location is used to update the GridCube
foreach (OVRCameraGameObject obj in CameraLocalSetList)
{
if (obj.CameraController.GetCameraDepth() == camera.depth)
{
// Initial difference
Vector3 newPos = -(qp * CameraPositionOffset);
// Final position
newPos += camera.transform.position;
// Set the game object info
obj.CameraGameObject.transform.position = newPos;
obj.CameraGameObject.transform.rotation = qp;
}
}
// Adjust camera position with offset/clipped cam location
camera.transform.localPosition += Quaternion.Inverse(camera.transform.parent.rotation) * qp * newCamPos;
// PGG: Call delegate function with new CameraOrientation / newCamPos here
// This location will be used to update the arrow pointer
// NOTE: Code below might not be needed. Please Look at OVRVisionGuide for potential
// location for arrow pointer
/*
* // This will set the orientation of the arrow
* if (camera.depth == 2.0f)
* {
* // Set the location of the top node to follow the camera
* OVRMainMenu.PointerSetPosition(camera.transform.position);
* OVRMainMenu.PointerSetOrientation(camera.transform.rotation);
* Quaternion foo = Quaternion.LookRotation(-CameraPosition);
* OVRMainMenu.PointerRotatePointerGeometry(qp * foo);
* }
*/
// move eyes out by x (IPD)
Vector3 newEyePos = Vector3.zero;
newEyePos.x = EyePosition.x;
camera.transform.localPosition += camera.transform.localRotation * newEyePos;
#else
// NOTE: On Android, camera orientation is set from OVRCameraController Update()
#endif
}
