Scene Object Updater. More...

Inheritance diagram for makVrv::DtSceneObjectUpdater:

Classes
struct	UpdateLODParams

Public Member Functions
	DtSceneObjectUpdater (DtDe &de, DtUniqueID id)
	CTOR. More...

virtual	~DtSceneObjectUpdater ()
	Virtual DTOR. More...

virtual void	setNextUpdater (DtSceneObjectUpdater *nextUpdater)
	Set the next updater in the updater chain. More...

virtual void	setPrevUpdater (DtSceneObjectUpdater *prevUpdater)
	Set the previous updater in the updater chain. More...

virtual bool	needsUpdate (DtTime tNow)
	The check function called by DtTickableManager to verify if an update is required. More...

virtual void	update (DtTime tNow)
	The update function called by DtTickableManager during update-ticks. More...

virtual void	updateAdaptiveTickrate (const DtVector &lastPos, const DtTime &deltaTime)
	This is called by the update function after all the original chaining updates happen. More...

virtual void	setVertexToUpdate (unsigned int vertex)
	Specify which vertex in the scene object this updater updates. More...

virtual void	setInputPosition (const DtVector &position)
	Set the position input to this updater. More...

virtual void	setInputOrientation (const DtTaitBryan &orientation)
	Set the orientation input to this updater. More...

virtual void	setOutputPosition (const DtVector &position)
	Output the resultant position. More...

virtual void	setOutputOrientation (const DtTaitBryan &orientation)
	Output the resultant orientation. More...

virtual void	setOutputPositionAndOrientation (const DtVector &position, const DtTaitBryan &orientation)
	Set both the position and orientation at the same time. More...

virtual DtTime	lastUpdateTime () const
	Get the time-stamp of the last update. More...

virtual void	setSceneObject (DtSceneObject *sceneObject, bool addToTickableMgrIfHead)
	Set the scene object to be updated. More...

virtual void	setSceneObject (DtSceneObject *sceneObject)
	Set the scene object to be updated. More...

virtual void	setLodSystemEnabled (bool enabled)
	brief set if the lod update system is on for this model More...

virtual bool	lodSystemEnabled () const
	brief gets if the lod update system is on for this model More...

virtual void	setLodScaleSpeedFactor (float factor)
	brief sets the value that linearly adjusts the range of the lod radii by the velocity More...

virtual float	lodScaleSpeedFactor () const
	brief gets the value that linearly adjusts the range of the lod radii by the velocity More...

virtual void	setLodRadiusStart (float ratius)
	brief sets the near radius where the update rate starts to fall off More...

virtual float	lodRadiusStart () const
	brief gets the near radius where the update rate starts to fall off More...

virtual void	setLodRadiusEnd (float ratius)
	brief sets the far radius where the update rate stops falling off More...

virtual float	lodRadiusEnd () const
	brief gets the far radius where the update rate stops falling off More...

virtual void	setNearLodUpdateRate (int nearRate)
	sets the update rate at the near radius, defaults to every six ticks More...

virtual int	nearLodUpdateRate () const
	brief gets the update rate at the near radius, defaults to every six ticks More...

virtual void	setFarLodUpdateRate (int maxRate)
	brief the update rate at the far radius, defaults to every 30 ticks More...

virtual int	farLodUpdateRate () const
	brief gets the update rate at the far radius defaults to every 30 ticks More...

DtUniqueID	uniqueId () const
	Returns the distributed object id of this updater. More...

DtSceneObjectUpdater *	findNextUpdater () const
	Return the next updater in the updater chain. More...

DtSceneObjectUpdater *	findPrevUpdater () const
	Return the previous updater in the updater chain. More...

virtual bool	isChainThreadSafe (DtSceneObjectUpdater *firstUpdater)
	Check all the updaters in the current chain and determine if the chain is thread safe. More...

virtual DtSceneObjectUpdater *	chainHead ()
	Find the first updater in the chain. More...

virtual void	setIsThreadSafe (bool safe)
	Override the DtTickable base class' method so retest the entire chain this updater belongs to. More...


DtSceneObject *	findSceneObject ()
	Get the current scene object for this updater. More...

DtSceneObject *const	findSceneObject () const
	const correct version More...

Public Member Functions inherited from makVrv::DtTickable
virtual bool	updateIfNeeded (DtTime tNow)
	Calls needsUpdate(), and then calls update() if needsUpdate() is true. More...

virtual	~DtTickable ()
	Virtual DTOR. More...

virtual bool	isThreadSafe () const

virtual void	setTickableListState (TickableListState safeList)
	Track which tickable list (if any) this tickable is on Since the tickable constructor puts ALL tickables on the main (unThreadSafe) to start we need a way to check which list a tickable is on (and this way we can request removals from the correct list instead of having to call DtTickableManager::removeTickableObject(), which tries both lists). More...

virtual TickableListState	tickableListState () const

virtual void	setUpdatePeriod (unsigned int period)
	Specify how often (in # of frames) this tickable should call update. More...

virtual unsigned int	updatePeriod () const

Public Attributes
Signals
Signal that this updater is being destroyed
boost::signalslib::signal < void(const DtUniqueID &) >	signal_updaterToBeDeleted

Protected Member Functions
virtual void	removeThreadSafeChainFromManager (DtSceneObjectUpdater *head)
	Helper method to remove an updater (not necessarily this one, but rather the one at the head of the chain that this updater belongs to) from the DtTickableManager's thread-safe tickable list. More...

virtual void	removeUnThreadSafeChainFromManager (DtSceneObjectUpdater *head)
	Helper method to remove an updater (not necessarily this one, but rather the one at the head of the chain that this updater belongs to) from the DtTickableManager's un-thread-safe tickable list. More...

virtual void	addThreadSafeChainToManager (DtSceneObjectUpdater *head)
	Helper method to add an updater (not necessarily this one, but rather the one at the head of the chain that this updater belongs to) to the DtTickableManager's thread-safe tickable list. More...

virtual void	addUnThreadSafeChainToManager (DtSceneObjectUpdater *head)
	Helper method to add an updater (not necessarily this one, but rather the one at the head of the chain that this updater belongs to) to the DtTickableManager's un-thread-safe tickable list. More...

virtual void	placeChainOnCorrectTickableList (DtSceneObjectUpdater *head)
	Examines the chain for the given head updater, removes the head from the approriate ticable list if necessary, and then adds the head to the correct (threaded or unthreaded) tickable list. More...

Slots
Slot called when the a scene object is to be deleted. If its the scene object that this updater is updating, then the local scene object copy is set to false
virtual void	slot_sceneObjectToBeDeleted (const DtUniqueID &id)

Protected Member Functions inherited from makVrv::DtTickable
	DtTickable (DtTickableManagerInterface *manager)
	CTOR. More...

	DtTickable ()
	Unimplemented default CTOR. More...

virtual void	slot_managerAboutToBeDeleted ()

Protected Attributes
DtDe &	myDe
	The display engine. More...

DtUniqueID	myUniqueId
	This distributed object's unique identifier. More...

DtSceneObject *	mySceneObject
	A pointer to the current scene object being updated. More...

int	myModelSet
	This updater is registered as a modelset-specific tickable; this is the modelset it's registered with. More...

boost::signalslib::connection	mySceneObjectConnection

DtSceneObjectUpdater *	myNextUpdater
	The next updater in the chain (or NULL) More...

DtSceneObjectUpdater *	myPrevUpdater
	The previous updater in the chain (or NULL) More...

unsigned int	myVertexToUpdate
	The default scene object vertex to update. More...

DtVector	myInputPosition
	Input position. More...

DtTaitBryan	myInputOrientation
	Input Orientation. More...

bool	myPositionDataOutputted
	Flag to indicate if setOutputPosition has been called this tick. More...

bool	myOrientationDataOutputted
	Flag to indicate if setOutputOrientation has been called this tick. More...

UpdateLODParams	myLodUpdateParams
	automatic lod system params More...

Protected Attributes inherited from makVrv::DtTickable
DtTickableManagerInterface *	myManager
	Pointer to manager for removal during destruction. More...

DtSignalConnectionManager	myConnections

unsigned int	myFrameCounter

unsigned int	myFrameToUpdate

unsigned int	myUpdatePeriod

DtTime	myLastUpdateTime

bool	myIsThreadSafe

TickableListState	myTickableListState

Additional Inherited Members
Public Types inherited from makVrv::DtTickable
enum	TickableListState { TickableNotOnList, TickableOnMainList, TickableOnThreadSafeList }
	Enumeration used to indicate which DtTickableManager's tickable list the tickable is on, if any. More...

Detailed Description

Scene Object Updater.

DtSceneObjectUpdater is a distributed object managed by DtTickableManager. It provides an API and infrastructure used by deriving objects to update the position and orientation of scene objects in render space. DtSceneObjectUpdaters may be chained together in a list to perform multiple position and/or orientation transformations. For example, one updater might dead reckon position and orientation based on kinematic info, the next in the chain could ground clamp the object. A third might adjust the ground clamped position to support terrain scaling.

02/23/2020 - Added support for determine whether an updater chain should be placed on the threaded or unthreaded DtTickableManager tickable list

Constructor & Destructor Documentation

makVrv::DtSceneObjectUpdater::DtSceneObjectUpdater	(	DtDe &	de,
		DtUniqueID	id
	)

CTOR.

Parameters

[in]	de	is the display engine.
[in]	id	is a unique identifier for this distributed object.

virtual makVrv::DtSceneObjectUpdater::~DtSceneObjectUpdater ( )

virtual

Virtual DTOR.

Member Function Documentation

virtual void makVrv::DtSceneObjectUpdater::setNextUpdater ( DtSceneObjectUpdater * nextUpdater )

virtual

Set the next updater in the updater chain.

Parameters

[in] nextUpdater is the next updater in this updater chain When the next updater is null, it indicates that the updater is at the end of the chain. Its output will be used to set the appropriate vertex (set using setVertexToUpdate) in the scene object. Updaters with a non-null next updater will provide its outputs to the inputs of the next updater.

Reimplemented in makVrv::DtSurfaceClampingUpdater.

virtual void makVrv::DtSceneObjectUpdater::setPrevUpdater ( DtSceneObjectUpdater * prevUpdater )

virtual

Set the previous updater in the updater chain.

Parameters

[in] prevUpdater is the prev updater in this updater chain When the previous updater is null, it indicates that this is the start of the updater chain; intial position and information is provided using setInputPosition and setInputOrientation.

virtual bool makVrv::DtSceneObjectUpdater::needsUpdate ( DtTime tNow )

virtual

The check function called by DtTickableManager to verify if an update is required.

If this function returns true, the DtTickableManager will then call update().

Parameters

[in] tNow is the current time-stamp.

Return values

true	if this object needs to be ticked.
false	otherwise. This base class method uses both the time and the presence of valid input transforms to determine if the updater should be ticked. Will always be true if the object is being observed

Reimplemented from makVrv::DtTickable.

virtual void makVrv::DtSceneObjectUpdater::update ( DtTime tNow )

virtual

The update function called by DtTickableManager during update-ticks.

Parameters

[in] tNow is the current time-stamp.

Note: All classes deriving from DtSceneObjectUpdater must call DtSceneObjectUpdater::update() AFTER their own update completes for chaining (and pass-thru) to work correctly.

Implements makVrv::DtTickable.

Reimplemented in makVrv::DtEmbarkationUpdater, makVrv::DtMultiPointEmbarkationUpdater, makVrv::DtSurfaceClampingUpdater, makVrv::DtVertexUpdater, makVrv::DtGroundClampingUpdater, makVrv::DtMultiPointSceneObjectUpdater, makVrv::DtWaterClampingUpdater, makVrv::DtDeadReckonUpdater, and makVrv::DtTerrainScalingUpdater.

virtual void makVrv::DtSceneObjectUpdater::updateAdaptiveTickrate	(	const DtVector &	lastPos,
		const DtTime &	deltaTime
	)

virtual

This is called by the update function after all the original chaining updates happen.

Parameters

[in]	lastPos	is the position right before update was run .
[in]	deltaTime	is useful for calculating velocity of the objects

virtual void makVrv::DtSceneObjectUpdater::setVertexToUpdate ( unsigned int vertex )

virtual

Specify which vertex in the scene object this updater updates.

Parameters

[in] vertex is the vertex in the scene object to update.

Reimplemented in makVrv::DtSurfaceClampingUpdater.

virtual void makVrv::DtSceneObjectUpdater::setInputPosition ( const DtVector & position )

virtual

Set the position input to this updater.

Parameters

[in] position is the position to use.

Reimplemented in makVrv::DtDeadReckonUpdater, and makVrv::DtSurfaceClampingUpdater.

virtual void makVrv::DtSceneObjectUpdater::setInputOrientation ( const DtTaitBryan & orientation )

virtual

Set the orientation input to this updater.

Parameters

[in] orientation is the orientation to use.

Reimplemented in makVrv::DtDeadReckonUpdater, and makVrv::DtSurfaceClampingUpdater.

virtual void makVrv::DtSceneObjectUpdater::setOutputPosition ( const DtVector & position )

virtual

Output the resultant position.

If there is a next updater, this will call that updater's setInputPosition with the result. Otherwise the result will be provided to the specified scene object

Parameters

[in] position is the position to set.

Reimplemented in makVrv::DtBoxUpdater.

virtual void makVrv::DtSceneObjectUpdater::setOutputOrientation ( const DtTaitBryan & orientation )

virtual

Output the resultant orientation.

If there is a next updater, this will call that updater's setInputOrientaiton with the result. Otherwise the result will be provided to the specified scene object

Parameters

[in] orientation is the orientation to set.

virtual void makVrv::DtSceneObjectUpdater::setOutputPositionAndOrientation	(	const DtVector &	position,
		const DtTaitBryan &	orientation
	)

virtual

Set both the position and orientation at the same time.

This allows the scene obejct and DtModels to set both at the same time which can avoid additional calculations when the two depend on each other. Currently only the DtDiGuyCharacterModel takes advantage of the performance improvement

Reimplemented in makVrv::DtBoxUpdater.

virtual DtTime makVrv::DtSceneObjectUpdater::lastUpdateTime ( ) const

virtual

Get the time-stamp of the last update.

Returns: The last update time.

virtual void makVrv::DtSceneObjectUpdater::setSceneObject	(	DtSceneObject *	sceneObject,
		bool	addToTickableMgrIfHead
	)

virtual

Set the scene object to be updated.

Parameters

[in]	sceneObject	is the scene object to receive updates.
[in]	addToTickableMgrIfHead	will allow (or disallow) the updater to be added to the tickable manager if it is currently has no 'previous' updater. This is a workaround used for cases where updaters aren't part of a simple chain, like the buoyancy and ground clamping updaters which are owned by a surface updater

virtual void makVrv::DtSceneObjectUpdater::setSceneObject ( DtSceneObject * sceneObject )

virtual

Set the scene object to be updated.

Parameters

[in] sceneObject is the scene object to receive updates. Calls setSceneObject(DtSceneObject* sceneObject, bool addToTickableMgrIfHead) with addToTickableMgrIfHead=true for back compatibility

Reimplemented in makVrv::DtSurfaceClampingUpdater, and makVrv::DtDeadReckonUpdater.

virtual void makVrv::DtSceneObjectUpdater::setLodSystemEnabled ( bool enabled )

virtual

brief set if the lod update system is on for this model

virtual bool makVrv::DtSceneObjectUpdater::lodSystemEnabled ( ) const

virtual

brief gets if the lod update system is on for this model

Reimplemented from makVrv::DtTickable.

virtual void makVrv::DtSceneObjectUpdater::setLodScaleSpeedFactor ( float factor )

virtual

brief sets the value that linearly adjusts the range of the lod radii by the velocity

virtual float makVrv::DtSceneObjectUpdater::lodScaleSpeedFactor ( ) const

virtual

brief gets the value that linearly adjusts the range of the lod radii by the velocity

virtual void makVrv::DtSceneObjectUpdater::setLodRadiusStart ( float ratius )

virtual

brief sets the near radius where the update rate starts to fall off

virtual float makVrv::DtSceneObjectUpdater::lodRadiusStart ( ) const

virtual

brief gets the near radius where the update rate starts to fall off

virtual void makVrv::DtSceneObjectUpdater::setLodRadiusEnd ( float ratius )

virtual

brief sets the far radius where the update rate stops falling off

virtual float makVrv::DtSceneObjectUpdater::lodRadiusEnd ( ) const

virtual

brief gets the far radius where the update rate stops falling off

virtual void makVrv::DtSceneObjectUpdater::setNearLodUpdateRate ( int nearRate )

virtual

sets the update rate at the near radius, defaults to every six ticks

virtual int makVrv::DtSceneObjectUpdater::nearLodUpdateRate ( ) const

virtual

brief gets the update rate at the near radius, defaults to every six ticks

virtual void makVrv::DtSceneObjectUpdater::setFarLodUpdateRate ( int maxRate )

virtual

brief the update rate at the far radius, defaults to every 30 ticks

virtual int makVrv::DtSceneObjectUpdater::farLodUpdateRate ( ) const

virtual

brief gets the update rate at the far radius defaults to every 30 ticks

DtSceneObject* makVrv::DtSceneObjectUpdater::findSceneObject ( )

inline

Get the current scene object for this updater.

Returns: A pointer to the scene object or NULL if not set.

DtSceneObject* const makVrv::DtSceneObjectUpdater::findSceneObject ( ) const

inline

const correct version

DtUniqueID makVrv::DtSceneObjectUpdater::uniqueId ( ) const

inline

Returns the distributed object id of this updater.

DtSceneObjectUpdater* makVrv::DtSceneObjectUpdater::findNextUpdater ( ) const

inline

Return the next updater in the updater chain.

DtSceneObjectUpdater* makVrv::DtSceneObjectUpdater::findPrevUpdater ( ) const

inline

Return the previous updater in the updater chain.

virtual bool makVrv::DtSceneObjectUpdater::isChainThreadSafe ( DtSceneObjectUpdater * firstUpdater )

virtual

Check all the updaters in the current chain and determine if the chain is thread safe.

Called to determine which tickable list the first updater should be placed on.

virtual DtSceneObjectUpdater* makVrv::DtSceneObjectUpdater::chainHead ( )

virtual

Find the first updater in the chain.

virtual void makVrv::DtSceneObjectUpdater::setIsThreadSafe ( bool safe )

virtual

Override the DtTickable base class' method so retest the entire chain this updater belongs to.

Reimplemented from makVrv::DtTickable.

virtual void makVrv::DtSceneObjectUpdater::slot_sceneObjectToBeDeleted ( const DtUniqueID & id )

protectedvirtual

Reimplemented in makVrf::DtVrfMultiPointEmbarkationUpdater, and makVrv::DtOverlayPolygonEmbarkationUpdater.

virtual void makVrv::DtSceneObjectUpdater::removeThreadSafeChainFromManager ( DtSceneObjectUpdater * head )

protectedvirtual

Helper method to remove an updater (not necessarily this one, but rather the one at the head of the chain that this updater belongs to) from the DtTickableManager's thread-safe tickable list.

Catches the exception that DtTickableManager may throw and outputs an appropriate message to the debug log

virtual void makVrv::DtSceneObjectUpdater::removeUnThreadSafeChainFromManager ( DtSceneObjectUpdater * head )

protectedvirtual

Helper method to remove an updater (not necessarily this one, but rather the one at the head of the chain that this updater belongs to) from the DtTickableManager's un-thread-safe tickable list.

Catches the exception that DtTickableManager may throw and outputs an appropriate message to the debug log

virtual void makVrv::DtSceneObjectUpdater::addThreadSafeChainToManager ( DtSceneObjectUpdater * head )

protectedvirtual

Helper method to add an updater (not necessarily this one, but rather the one at the head of the chain that this updater belongs to) to the DtTickableManager's thread-safe tickable list.

Catches the exception that DtTickableManager may throw and outputs an appropriate message to the debug log

virtual void makVrv::DtSceneObjectUpdater::addUnThreadSafeChainToManager ( DtSceneObjectUpdater * head )

protectedvirtual

Helper method to add an updater (not necessarily this one, but rather the one at the head of the chain that this updater belongs to) to the DtTickableManager's un-thread-safe tickable list.

Catches the exception that DtTickableManager may throw and outputs an appropriate message to the debug log

virtual void makVrv::DtSceneObjectUpdater::placeChainOnCorrectTickableList ( DtSceneObjectUpdater * head )

protectedvirtual

Examines the chain for the given head updater, removes the head from the approriate ticable list if necessary, and then adds the head to the correct (threaded or unthreaded) tickable list.

Member Data Documentation

boost::signalslib::signal< void ( const DtUniqueID& ) > makVrv::DtSceneObjectUpdater::signal_updaterToBeDeleted

DtDe& makVrv::DtSceneObjectUpdater::myDe

protected

The display engine.

DtUniqueID makVrv::DtSceneObjectUpdater::myUniqueId

protected

This distributed object's unique identifier.

DtSceneObject* makVrv::DtSceneObjectUpdater::mySceneObject

protected

A pointer to the current scene object being updated.

int makVrv::DtSceneObjectUpdater::myModelSet

protected

This updater is registered as a modelset-specific tickable; this is the modelset it's registered with.

boost::signalslib::connection makVrv::DtSceneObjectUpdater::mySceneObjectConnection

protected

DtSceneObjectUpdater* makVrv::DtSceneObjectUpdater::myNextUpdater

protected

The next updater in the chain (or NULL)

DtSceneObjectUpdater* makVrv::DtSceneObjectUpdater::myPrevUpdater

protected

The previous updater in the chain (or NULL)

unsigned int makVrv::DtSceneObjectUpdater::myVertexToUpdate

protected

The default scene object vertex to update.

DtVector makVrv::DtSceneObjectUpdater::myInputPosition

protected

Input position.

DtTaitBryan makVrv::DtSceneObjectUpdater::myInputOrientation

protected

Input Orientation.

bool makVrv::DtSceneObjectUpdater::myPositionDataOutputted

protected

Flag to indicate if setOutputPosition has been called this tick.

If a deriving updater hasn't called setOutputPosition, this base class will copy the input position to the output.

bool makVrv::DtSceneObjectUpdater::myOrientationDataOutputted

protected

Flag to indicate if setOutputOrientation has been called this tick.

If a deriving updater hasn't called setOutputPosition, this base class will copy the input orientation to the output.

UpdateLODParams makVrv::DtSceneObjectUpdater::myLodUpdateParams

protected

automatic lod system params

The documentation for this class was generated from the following file:

/data/exports/nrhent7-1/nightly/docs/vrForces.vrf4-10-branch/include/vrvCore/DtSceneObjectUpdater.h

Classes

Public Member Functions

Public Attributes

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation