bool OSVRHMDDescription::InitIPD(OSVR_DisplayConfig displayConfig)
{
OSVR_Pose3 leftEye, rightEye;
OSVR_ReturnCode returnCode;
returnCode = osvrClientGetViewerEyePose(displayConfig, 0, 0, &leftEye);
if (returnCode == OSVR_RETURN_FAILURE)
{
UE_LOG(OSVRHMDDescriptionLog, Warning, TEXT("osvrClientGetViewerEyePose call failed for left eye"));
return false;
}
returnCode = osvrClientGetViewerEyePose(displayConfig, 0, 1, &rightEye);
if (returnCode == OSVR_RETURN_FAILURE)
{
UE_LOG(OSVRHMDDescriptionLog, Warning, TEXT("osvrClientGetViewerEyePose call failed for right eye"));
}
double dx = leftEye.translation.data[0] - rightEye.translation.data[0];
double dy = leftEye.translation.data[1] - rightEye.translation.data[1];
double dz = leftEye.translation.data[2] - rightEye.translation.data[2];
m_ipd = FMath::Sqrt(dx * dx + dy * dy + dz * dz);
return true;
}
void QVRDevice::update()
{
if (config().processIndex() == QVRManager::processIndex()) {
#ifdef HAVE_VRPN
if (_internals->vrpnTrackerRemote)
_internals->vrpnTrackerRemote->mainloop();
if (_internals->vrpnButtonRemote)
_internals->vrpnButtonRemote->mainloop();
if (_internals->vrpnAnalogRemote)
_internals->vrpnAnalogRemote->mainloop();
#endif
#ifdef HAVE_OCULUS
if (_internals->oculusTrackedEye >= 0) {
const ovrPosef* p;
if (_internals->oculusTrackedEye == 1)
p = &(QVROculusRenderPoses[0]);
else if (_internals->oculusTrackedEye == 2)
p = &(QVROculusRenderPoses[1]);
else
p = &(QVROculusTrackingState.HeadPose.ThePose);
// Note the position Y offset that moves the sitting user's eyes to a default standing height in
// the virtual world.
_position = QVector3D(p->Position.x, p->Position.y + QVRObserverConfig::defaultEyeHeight, p->Position.z);
_orientation = QQuaternion(p->Orientation.w, p->Orientation.x, p->Orientation.y, p->Orientation.z);
}
#endif
#ifdef HAVE_OPENVR
if (_internals->openVrTrackedEntity >= 0) {
_orientation = QVROpenVRTrackedOrientations[_internals->openVrTrackedEntity];
_position = QVROpenVRTrackedPositions[_internals->openVrTrackedEntity];
}
if (_internals->openVrButtonsEntity >= 0) {
_buttons[0] = QVROpenVRControllerStates[_internals->openVrButtonsEntity].rAxis[0].y > +0.5f;
_buttons[1] = QVROpenVRControllerStates[_internals->openVrButtonsEntity].rAxis[0].y < -0.5f;
_buttons[2] = QVROpenVRControllerStates[_internals->openVrButtonsEntity].rAxis[0].x < -0.5f;
_buttons[3] = QVROpenVRControllerStates[_internals->openVrButtonsEntity].rAxis[0].x > +0.5f;
unsigned long buttonPressed = QVROpenVRControllerStates[_internals->openVrButtonsEntity].ulButtonPressed;
_buttons[4] = buttonPressed & vr::ButtonMaskFromId(vr::k_EButton_ApplicationMenu);
_buttons[5] = buttonPressed & vr::ButtonMaskFromId(vr::k_EButton_Grip);
}
if (_internals->openVrAnalogsEntity >= 0) {
_analogs[0] = QVROpenVRControllerStates[_internals->openVrAnalogsEntity].rAxis[0].y;
_analogs[1] = QVROpenVRControllerStates[_internals->openVrAnalogsEntity].rAxis[0].x;
_analogs[2] = QVROpenVRControllerStates[_internals->openVrAnalogsEntity].rAxis[1].x;
}
#endif
#ifdef HAVE_OSVR
if (_internals->osvrTrackedEye != -1 || _internals->osvrTrackingInterface) {
OSVR_Pose3 pose;
bool ok;
if (_internals->osvrTrackedEye == 0) { // center eye
ok = (osvrClientGetViewerPose(QVROsvrDisplayConfig, 0, &pose) == OSVR_RETURN_SUCCESS);
} else if (_internals->osvrTrackedEye == 1) { // left eye
ok = (osvrClientGetViewerEyePose(QVROsvrDisplayConfig, 0, 0, &pose) == OSVR_RETURN_SUCCESS);
} else if (_internals->osvrTrackedEye == 2) { // right eye
OSVR_EyeCount eyes;
osvrClientGetNumEyesForViewer(QVROsvrDisplayConfig, 0, &eyes);
int e = (eyes == 2 ? 1 : 0);
ok = (osvrClientGetViewerEyePose(QVROsvrDisplayConfig, 0, e, &pose) == OSVR_RETURN_SUCCESS);
} else { // _internals->osvrTrackingInterface
struct OSVR_TimeValue timestamp;
ok = (osvrGetPoseState(_internals->osvrTrackingInterface, ×tamp, &pose) == OSVR_RETURN_SUCCESS);
}
if (ok) {
if (_internals->osvrTrackedEye >= 0 && pose.translation.data[1] < 1.1f) {
// Assume the user wears a HMD and sits (i.e. no room-scale VR).
// In this case, we apply an offset to a default standing observer,
// just as we do for Oculus Rift.
pose.translation.data[1] += QVRObserverConfig::defaultEyeHeight;
}
_position = QVector3D(pose.translation.data[0], pose.translation.data[1],
pose.translation.data[2]);
_orientation = QQuaternion(pose.rotation.data[0], pose.rotation.data[1],
pose.rotation.data[2], pose.rotation.data[3]);
}
}
if (_internals->osvrButtonsInterfaces.length() > 0) {
OSVR_ButtonState state;
struct OSVR_TimeValue timestamp;
for (int i = 0; i < _buttons.length(); i++) {
if (_internals->osvrButtonsInterfaces[i]
&& osvrGetButtonState(_internals->osvrButtonsInterfaces[i],
×tamp, &state) == OSVR_RETURN_SUCCESS) {
_buttons[i] = state;
}
}
}
if (_internals->osvrAnalogsInterfaces.length() > 0) {
OSVR_AnalogState state;
struct OSVR_TimeValue timestamp;
for (int i = 0; i < _analogs.length(); i++) {
if (_internals->osvrAnalogsInterfaces[i]
&& osvrGetAnalogState(_internals->osvrAnalogsInterfaces[i],
×tamp, &state) == OSVR_RETURN_SUCCESS) {
_analogs[i] = state;
}
}
}
#endif
}
}
