void initCamera()
{
if (ConfigFile->getVar("HMDEnable").asBool())
{
std::vector<NL3D::CStereoDeviceInfo> devices;
IStereoDisplay::listDevices(devices);
for (std::vector<NL3D::CStereoDeviceInfo>::iterator it(devices.begin()), end(devices.end()); it != end; ++it)
{
std::stringstream name;
name << std::string("[") << it->Serial << "] [" << IStereoDisplay::getLibraryName(it->Library) << " - " << it->Manufacturer << " - " << it->ProductName << "]";
nlinfo("Stereo Display: %s", name.str().c_str());
}
CStereoDeviceInfo *deviceInfo = NULL;
std::string hmdDeviceCfg = ConfigFile->getVar("HMDDevice").asString();
if (hmdDeviceCfg == std::string("Auto")
&& devices.begin() != devices.end())
{
for (std::vector<NL3D::CStereoDeviceInfo>::iterator it(devices.begin()), end(devices.end()); it != end; ++it)
{
if (it->AllowAuto)
{
deviceInfo = &devices[0];
}
}
}
else
{
std::string hmdDeviceId = ConfigFile->getVar("HMDDeviceId").asString();
for (std::vector<NL3D::CStereoDeviceInfo>::iterator it(devices.begin()), end(devices.end()); it != end; ++it)
{
std::stringstream name;
name << IStereoDisplay::getLibraryName(it->Library) << " - " << it->Manufacturer << " - " << it->ProductName;
if (name.str() == hmdDeviceCfg)
deviceInfo = &(*it);
if (hmdDeviceId == it->Serial)
break;
}
}
if (deviceInfo)
{
nlinfo("Create VR stereo display device");
StereoDisplay = IStereoDisplay::createDevice(*deviceInfo);
if (StereoDisplay)
{
if (deviceInfo->Class == CStereoDeviceInfo::StereoHMD)
{
nlinfo("Stereo display device is a HMD");
StereoHMD = static_cast<IStereoHMD *>(StereoDisplay);
StereoHMD->setScale(3.0f); // snowballs is about 4 units per meter
}
StereoDisplay->setDriver(Driver); // move after driver creation, move stereodisplay before driver creation
StereoDisplay->attachToDisplay();
}
}
}
IStereoDisplay::releaseUnusedLibraries();
// Set up directly the camera
Camera = Scene->getCam();
Camera.setTransformMode (UTransformable::DirectMatrix);
Camera.setPerspective((float)Pi/2.f,
ConfigFile->getVar("ScreenWidth").asFloat() / ConfigFile->getVar("ScreenHeight").asFloat(),
0.1f, 1000.f);
Camera.lookAt (CVector(ConfigFile->getVar("StartPoint").asFloat(0),
ConfigFile->getVar("StartPoint").asFloat(1),
ConfigFile->getVar("StartPoint").asFloat(2)),
CVectorD (0,0,0));
CamCollisionEntity = VisualCollisionManager->createEntity();
CamCollisionEntity->setCeilMode(true);
// Create the snowing particle system
Snow = Scene->createInstance("snow.ps");
// And setup it
Snow.setTransformMode (UTransformable::DirectMatrix);
//
// Setup the sky scene
//
// -- -- not sure what the sky has to do with the camera
SkyScene = Driver->createScene(false);
SkyCamera = SkyScene->getCam ();
SkyCamera.setTransformMode (UTransformable::DirectMatrix);
// Set the very same frustum as the main camera
SkyCamera.setFrustum (Camera.getFrustum ());
Sky = SkyScene->createInstance("sky.shape");
Sky.setTransformMode (UTransformable::DirectMatrix);
Sky.setMatrix(CMatrix::Identity);
}
//-----------------------------------------------
// updateCamera :
// Update the camera (position, target, roll, fov)
//-----------------------------------------------
void CSceneParser::updateCamera(double timeInSec)
{
// If there is a play list for the camera.
if(_PlayList)
{
// Get the Id of the animation in the slot 0.
uint idAnim = _PlayList->getAnimation(0);
if(idAnim != UPlayList::empty)
{
UAnimation *animation = _AnimationSet->getAnimation(idAnim);
if(animation)
{
// Get Camera informations from the animation (Pos, Target, Roll).
UTrack* trackRollCam = animation->getTrackByName("Camera.roll");
UTrack* trackFovCam = animation->getTrackByName("Camera.fov");
UTrack* trackPosCam = animation->getTrackByName("Camera.PathPos");
UTrack* trackPosTarget = animation->getTrackByName("Camera.Target.PathPos");
if(trackPosCam && trackPosTarget)
{
float rollCam = 0.f;
CVector posCam;
CVector posTarget;
float difTime = (float)(timeInSec-_TimeStart);
if(trackRollCam)
trackRollCam->interpolate(difTime, rollCam);
trackPosCam->interpolate(difTime, posCam);
trackPosTarget->interpolate(difTime, posTarget);
// Update camera transformations.
UCamera cam = Scene->getCam();
if(cam)
{
cam->setTransformMode(UTransformable::RotQuat);
cam->lookAt(posCam, posTarget, rollCam);
if(trackFovCam)
{
float fov;
trackFovCam->interpolate(difTime, fov);
CFrustum fr= cam->getFrustum();
// change only the fov
cam->setPerspective(fov, fr.getAspectRatio(), fr.Near, fr.Far);
}
}
// Update camera transformations for the Root.
cam = SceneRoot->getCam();
if(cam)
{
cam->setTransformMode(UTransformable::RotQuat);
cam->lookAt(posCam, posTarget, rollCam);
if(trackFovCam)
{
float fov;
trackFovCam->interpolate(difTime, fov);
CFrustum fr= cam->getFrustum();
// change only the fov
cam->setPerspective(fov, fr.getAspectRatio(), fr.Near, fr.Far);
}
}
}
}
}
}
}// updateCamera //
