//------------------------------------------------------------------------
void CView::Update(float frameTime,bool isActive)
{
//FIXME:some cameras may need to be updated always
if (!isActive)
return;
CGameObject* pLinkedTo = GetLinkedGameObject();
if (pLinkedTo && !pLinkedTo->CanUpdateView())
pLinkedTo = nullptr;
IEntity* pEntity = pLinkedTo ? 0 : GetLinkedEntity();
if (pLinkedTo || pEntity)
{
m_viewParams.SaveLast();
CCamera* pSysCam = &m_pSystem->GetViewCamera();
//process screen shaking
ProcessShaking(frameTime);
//FIXME:to let the updateView implementation use the correct shakeVector
m_viewParams.currentShakeShift = m_viewParams.rotation * m_viewParams.currentShakeShift;
m_viewParams.frameTime = frameTime;
//update view position/rotation
if (pLinkedTo)
{
pLinkedTo->UpdateView(m_viewParams);
if (!m_viewParams.position.IsValid())
{
m_viewParams.position = m_viewParams.GetPositionLast();
CRY_ASSERT_MESSAGE(0, "Camera position is invalid, reverting to old position");
}
if (!m_viewParams.rotation.IsValid())
{
m_viewParams.rotation = m_viewParams.GetRotationLast();
CRY_ASSERT_MESSAGE(0, "Camera rotation is invalid, reverting to old rotation");
}
}
else
{
Matrix34 mat = pEntity->GetWorldTM();
mat.OrthonormalizeFast();
m_viewParams.position = mat.GetTranslation();
m_viewParams.rotation = Quat(mat);
}
ApplyFrameAdditiveAngles(m_viewParams.rotation);
if (pLinkedTo)
{
pLinkedTo->PostUpdateView(m_viewParams);
}
const float fNearZ = gEnv->pGame->GetIGameFramework()->GetIViewSystem()->GetDefaultZNear();
//see if the view have to use a custom near clipping plane
const float nearPlane = (m_viewParams.nearplane >= 0.01f) ? (m_viewParams.nearplane) : fNearZ;
const float farPlane = gEnv->p3DEngine->GetMaxViewDistance();
float fov = (m_viewParams.fov < 0.001f) ? DEFAULT_FOV : m_viewParams.fov;
// [VR] specific
// Modify FOV based on the HDM device configuration
IHmdManager* pHmdManager = gEnv->pSystem->GetHmdManager();
IHmdDevice* pHmdDevice = nullptr;
bool bHmdTrackingEnabled = false;
if (pHmdManager)
{
pHmdDevice = pHmdManager->GetHmdDevice();
if (pHmdDevice)
{
const HmdTrackingState &sensorState = pHmdDevice->GetLocalTrackingState();
if (sensorState.CheckStatusFlags(eHmdStatus_IsUsable))
{
bHmdTrackingEnabled = true;
}
}
}
if (pHmdManager->IsStereoSetupOk())
{
const IHmdDevice* pDev = pHmdManager->GetHmdDevice();
const HmdTrackingState &sensorState = pDev->GetLocalTrackingState();
if (sensorState.CheckStatusFlags(eHmdStatus_IsUsable))
{
float arf_notUsed;
pDev->GetCameraSetupInfo(fov, arf_notUsed);
}
}
m_camera.SetFrustum(pSysCam->GetViewSurfaceX(), pSysCam->GetViewSurfaceZ(), fov, nearPlane, farPlane, pSysCam->GetPixelAspectRatio());
//TODO: (14, 06, 2010, "the player view should always get updated, this due to the hud being visable, without shocking, in cutscenes - todo is to see if we can optimise this code");
IActor* pActor = gEnv->pGame->GetIGameFramework()->GetClientActor();
if (pActor)
{
CGameObject* const linkToObj = static_cast<CGameObject*>(pActor->GetEntity()->GetProxy(ENTITY_PROXY_USER));
if (linkToObj && linkToObj != pLinkedTo)
{
linkToObj->PostUpdateView(m_viewParams);
}
}
//apply shake & set the view matrix
m_viewParams.rotation *= m_viewParams.currentShakeQuat;
m_viewParams.rotation.NormalizeSafe();
m_viewParams.position += m_viewParams.currentShakeShift;
// Camera space Rendering calculations on Entity
if (pLinkedTo)
{
IEntity* pLinkedToEntity = pLinkedTo->GetEntity();
if (pLinkedToEntity)
{
const int slotIndex = 0;
uint32 entityFlags = pLinkedToEntity->GetSlotFlags(slotIndex);
if (entityFlags & ENTITY_SLOT_RENDER_NEAREST)
{
// Get camera pos relative to entity
const Vec3 cameraLocalPos = m_viewParams.position;
// Set entity's camera space position
const Vec3 cameraSpacePos(-cameraLocalPos * m_viewParams.rotation);
pLinkedToEntity->SetSlotCameraSpacePos(slotIndex,cameraSpacePos);
// Add world pos onto camera local pos
m_viewParams.position = pLinkedToEntity->GetWorldPos() + cameraLocalPos;
}
}
}
// Blending between cameras needs to happen after Camera space rendering calculations have been applied
// so that the m_viewParams.position is in World Space again
m_viewParams.UpdateBlending(frameTime);
// [VR] specific
// Add HMD's pose tracking on top of current camera pose
// Each game-title can decide whether to keep this functionality here or (most likely)
// move it somewhere else.
Quat q = m_viewParams.rotation;
Vec3 pos = m_viewParams.position;
Vec3 p = Vec3(ZERO);
// Uses the recorded tracking if time demo is on playback
// Otherwise uses real tracking from device
ITimeDemoRecorder* pTimeDemoRecorder = gEnv->pGame->GetIGameFramework()->GetITimeDemoRecorder();
if (pTimeDemoRecorder && pTimeDemoRecorder->IsPlaying())
{
STimeDemoFrameRecord record;
pTimeDemoRecorder->GetCurrentFrameRecord(record);
p = q * record.hmdPositionOffset;
q = q * record.hmdViewRotation;
}
else if (bHmdTrackingEnabled)
{
pHmdDevice->SetAsynCameraCallback(this);
if (pHmdReferencePoint && pHmdReferencePoint->GetIVal() == 1) // actor-centered HMD offset
{
const IEntity* pEnt = GetLinkedEntity();
if (const IActor* pActor = gEnv->pGame->GetIGameFramework()->GetClientActor())
{
if (pEnt && pActor->GetEntity() == pEnt)
{
q = pEnt->GetWorldRotation();
pos = pEnt->GetWorldPos();
}
}
}
const HmdTrackingState &sensorState = pHmdDevice->GetLocalTrackingState();
p = q * sensorState.pose.position;
q = q * sensorState.pose.orientation;
}
Matrix34 viewMtx(q);
viewMtx.SetTranslation(pos + p);
m_camera.SetMatrix(viewMtx);
}
else
{
m_linkedTo = 0;
CCryAction* pCryAction = CCryAction::GetCryAction();
if (!pCryAction->IsGameSessionMigrating()) // If we're host migrating, leave the camera where it was
{
// Check if we're leaving a game mid way through - if we are then stop the camera from being reset for a frame or 2 before the unload happens
if (!pCryAction->GetIGameSessionHandler()->IsMidGameLeaving())
{
m_camera.SetPosition(Vec3(1,1,1));
}
}
}
}
//------------------------------------------------------------------------
void CView::Update(float frameTime,bool isActive)
{
//FIXME:some cameras may need to be updated always
if (!isActive)
return;
CGameObject * pLinkedTo = GetLinkedGameObject();
if (pLinkedTo && !pLinkedTo->CanUpdateView())
pLinkedTo = NULL;
IEntity* pEntity = pLinkedTo ? 0 : GetLinkedEntity();
if (pLinkedTo || pEntity)
{
m_viewParams.SaveLast();
CCamera *pSysCam = &m_pSystem->GetViewCamera();
//process screen shaking
ProcessShaking(frameTime);
//FIXME:to let the updateView implementation use the correct shakeVector
m_viewParams.currentShakeShift = m_viewParams.rotation * m_viewParams.currentShakeShift;
m_viewParams.frameTime=frameTime;
//update view position/rotation
if (pLinkedTo)
{
pLinkedTo->UpdateView(m_viewParams);
if (!m_viewParams.position.IsValid())
{
m_viewParams.position = m_viewParams.GetPositionLast();
CRY_ASSERT_MESSAGE(0, "Camera position is invalid, reverting to old position");
}
if (!m_viewParams.rotation.IsValid())
{
m_viewParams.rotation = m_viewParams.GetRotationLast();
CRY_ASSERT_MESSAGE(0, "Camera rotation is invalid, reverting to old rotation");
}
}
else
{
Matrix34 mat = pEntity->GetWorldTM();
mat.OrthonormalizeFast();
m_viewParams.position = mat.GetTranslation();
m_viewParams.rotation = Quat(mat);
}
ApplyFrameAdditiveAngles(m_viewParams.rotation);
if (pLinkedTo)
{
pLinkedTo->PostUpdateView(m_viewParams);
}
float fNearZ = gEnv->pGame->GetIGameFramework()->GetIViewSystem()->GetDefaultZNear();
//see if the view have to use a custom near clipping plane
float nearPlane = (m_viewParams.nearplane > 0.01f)?(m_viewParams.nearplane):(fNearZ/*pSysCam->GetNearPlane()*/);
float farPlane = gEnv->p3DEngine->GetMaxViewDistance();
float fov = m_viewParams.fov < 0.001 ? DEFAULT_FOV : m_viewParams.fov;
m_camera.SetFrustum(pSysCam->GetViewSurfaceX(),pSysCam->GetViewSurfaceZ(),fov,nearPlane,farPlane, pSysCam->GetPixelAspectRatio());
//TODO: (14, 06, 2010, "the player view should always get updated, this due to the hud being visable, without shocking, in cutscenes - todo is to see if we can optimise this code");
IActor * pActor = gEnv->pGame->GetIGameFramework()->GetClientActor();
if (pActor)
{
CGameObject * linkToObj = (CGameObject*)pActor->GetEntity()->GetProxy( ENTITY_PROXY_USER );
if (linkToObj && linkToObj != pLinkedTo)
{
linkToObj->PostUpdateView(m_viewParams);
}
}
//apply shake & set the view matrix
m_viewParams.rotation *= m_viewParams.currentShakeQuat;
m_viewParams.rotation.NormalizeSafe();
m_viewParams.position += m_viewParams.currentShakeShift;
// Camera space Rendering calculations on Entity
if(pLinkedTo)
{
IEntity* pLinkedToEntity = pLinkedTo->GetEntity();
if(pLinkedToEntity)
{
const int slotIndex = 0;
uint32 entityFlags = pLinkedToEntity->GetSlotFlags(slotIndex);
if(entityFlags & ENTITY_SLOT_RENDER_NEAREST)
{
// Get camera pos relative to entity
const Vec3 cameraLocalPos = m_viewParams.position;
// Set entity's camera space position
const Vec3 cameraSpacePos(-cameraLocalPos * m_viewParams.rotation);
pLinkedToEntity->SetSlotCameraSpacePos(slotIndex,cameraSpacePos);
// Add world pos onto camera local pos
m_viewParams.position = pLinkedToEntity->GetWorldPos() + cameraLocalPos;
}
}
}
// Blending between cameras needs to happen after Camera space rendering calculations have been applied
// so that the m_viewParams.position is in World Space again
m_viewParams.UpdateBlending(frameTime);
Matrix34 viewMtx(m_viewParams.rotation);
viewMtx.SetTranslation(m_viewParams.position);
m_camera.SetMatrix(viewMtx);
}
else
{
m_linkedTo = 0;
CCryAction *pCryAction = CCryAction::GetCryAction();
if (!pCryAction->IsGameSessionMigrating()) // If we're host migrating, leave the camera where it was
{
// Check if we're leaving a game mid way through - if we are then stop the camera from being reset for a frame or 2 before the unload happens
if (!pCryAction->GetIGameSessionHandler()->IsMidGameLeaving())
{
m_camera.SetPosition(Vec3(1,1,1));
}
}
}
}