DtOsgCullVisitor will inspect the camera to see which visual mode is active. If the visual mode is a 2D display mode, it changes the way LODs are paged in by pixel size and zoom level, else uses a distance from eye-point check with no LOD scale.

Inheritance diagram for makVrv::DtOsgCullVisitor:

[legend]

Public Member Functions
	DtOsgCullVisitor (DtDe &de)

	DtOsgCullVisitor (const DtOsgCullVisitor &rhs)

virtual void	initializeViewDependentSettings ()

virtual void	setMaximumMagnificationAngle (double angleRadians)

virtual double	maximumMagnificationAngle () const

virtual bool	orthoCulling () const

virtual bool	coordinateSystemChanged () const

virtual float	getDistanceToScreenEdge (const osg::Vec3 &vec) const

virtual float	altitude2D () const

virtual const DtOsgCullVisitorParameters *	visitorParameters () const

virtual void	apply (osg::Transform &node) override

virtual void	apply (osg::Node &node) override

virtual void	apply (osg::Group &group) override

virtual void	apply (osg::LightSource &lightSource) override

virtual void	apply (osg::Geode &geode) override

virtual void	apply (osg::Camera &node) override

virtual void	apply (osg::Billboard &node) override

virtual bool	isCulled (osg::Node &node, double scaleFactor)

virtual float	getDistanceToViewPoint (const osg::Vec3 &vec, bool useLOD) const override

virtual void	preCull ()

Protected Member Functions
virtual	~DtOsgCullVisitor ()

virtual float	calculateFocusPointDistance (const osg::Vec3 &vec, bool useLOD, float magVal, double angle) const

virtual DtOsgCullVisitorParameters *	getVisitorParameters () const

virtual osgUtil::CullVisitor *	clone () const

virtual bool	isOcean (const osg::Node *node) const

virtual void	slot_StateSetChanged (const osg::StateSet *pStateSet)

virtual void	slot_coordinateSystemChanged ()

Protected Attributes
DtOsgCullVisitorParameters *	myInfoCopy

double	myAltitude2D

double	myAltitude3D

osg::Matrix	myWorldToWindowMatrix

DtDe &	myDe

boost::signalslib::connection	m_signalConnection

bool	myIsInTerrain

DtSignalConnectionManager	myConnections

DtCoordinateSystem *	myCoordinateSystem = nullptr

double	myMaximumMagnificationAngle

DtSkyObjectManager &	mySkyObjectManager

bool	myHasCurrentCamera

osg::Matrix	myCurrentCameraViewMatrixI

osg::Matrix	myMainCameraViewMatrixI

Private Member Functions
	DtOsgCullVisitor ()=delete

DtOsgCullVisitor &	operator= (DtOsgCullVisitor &rhs)=delete

Constructor & Destructor Documentation

makVrv::DtOsgCullVisitor::DtOsgCullVisitor ( DtDe & de )

CTOR.

makVrv::DtOsgCullVisitor::DtOsgCullVisitor ( const DtOsgCullVisitor & rhs )

Copy constructor.

virtual makVrv::DtOsgCullVisitor::~DtOsgCullVisitor ( )

protectedvirtual

destructor

makVrv::DtOsgCullVisitor::DtOsgCullVisitor ( )

privatedelete

not allowed

Member Function Documentation

DtOsgCullVisitor& makVrv::DtOsgCullVisitor::operator= ( DtOsgCullVisitor & rhs )

privatedelete

not allowed

virtual void makVrv::DtOsgCullVisitor::initializeViewDependentSettings ( )

virtual

Virtual void.

virtual void makVrv::DtOsgCullVisitor::setMaximumMagnificationAngle ( double angleRadians )

virtual

Set the angle used when paging in high LOD tiles, the angle (radians) represents the half angle, so view dir +/- angle is used like a camera FOV. Note that this is called from initializeViewDependentSettings(), however this method allows override behavior and/or the ability to change the value after initializeViewDependentSettings() has been called.

virtual double makVrv::DtOsgCullVisitor::maximumMagnificationAngle ( ) const

virtual

Get the angle used when paging in high LOD tiles, the angle (radians) represents the half angle, so view dir +/- angle is used like a camera FOV.

virtual bool makVrv::DtOsgCullVisitor::orthoCulling ( ) const

virtual

Query whether this visitor is doing orthographic culling.

virtual bool makVrv::DtOsgCullVisitor::coordinateSystemChanged ( ) const

virtual

Query whether the coordinate system changed this frame (used to reset localToWorkd matrices)

virtual float makVrv::DtOsgCullVisitor::getDistanceToScreenEdge ( const osg::Vec3 & vec ) const

virtual

Get a projected distance from the screen edge (approximate) when orthoCulling.

virtual float makVrv::DtOsgCullVisitor::altitude2D ( ) const

virtual

Same as getDistanceToViewPoint() when ortho culling.

virtual const DtOsgCullVisitorParameters* makVrv::DtOsgCullVisitor::visitorParameters ( ) const

virtual

Get the cull visitor parameters.

virtual void makVrv::DtOsgCullVisitor::apply ( osg::Transform & node )

overridevirtual

check for scalable transform and scale as required

virtual void makVrv::DtOsgCullVisitor::apply ( osg::Node & node )

overridevirtual

check for light point nodes so we can disable shaders on them

virtual void makVrv::DtOsgCullVisitor::apply ( osg::Group & group )

overridevirtual

check for scalable group and scale bounding sphere as required

virtual void makVrv::DtOsgCullVisitor::apply ( osg::LightSource & lightSource )

overridevirtual

check for emissive lights in models and make them global

virtual void makVrv::DtOsgCullVisitor::apply ( osg::Geode & geode )

overridevirtual

sync shader uniforms to the state

virtual void makVrv::DtOsgCullVisitor::apply ( osg::Camera & node )

overridevirtual

currently unused but can be used for profiling the camera apply

virtual void makVrv::DtOsgCullVisitor::apply ( osg::Billboard & node )

overridevirtual

process the cull for billboards

virtual bool makVrv::DtOsgCullVisitor::isCulled	(	osg::Node &	node,
		double	scaleFactor
	)

virtual

for nodes that need scaling, we call this instead of CullVisitor::isCulled

virtual float makVrv::DtOsgCullVisitor::getDistanceToViewPoint	(	const osg::Vec3 &	vec,
		bool	useLOD
	)		const

overridevirtual

Gets the distance to the view point with the given visual mode. Will be used to page in LODs.

virtual void makVrv::DtOsgCullVisitor::preCull ( )

virtual

Internally calls renderer preCull. This should only be called by the main thread, once per cullVisitor, and before any culling takes place.

virtual float makVrv::DtOsgCullVisitor::calculateFocusPointDistance	(	const osg::Vec3 &	vec,
		bool	useLOD,
		float	magVal,
		double	angle
	)		const

protectedvirtual

utility function for calculating the distance based on focus points.

virtual DtOsgCullVisitorParameters* makVrv::DtOsgCullVisitor::getVisitorParameters ( ) const

protectedvirtual

Fetches the info from the visitor's renderInfo object.

virtual osgUtil::CullVisitor* makVrv::DtOsgCullVisitor::clone ( ) const

protectedvirtual

Protected clone function.

virtual bool makVrv::DtOsgCullVisitor::isOcean ( const osg::Node * node ) const

protectedvirtual

whether is ocean

virtual void makVrv::DtOsgCullVisitor::slot_StateSetChanged ( const osg::StateSet * pStateSet )

protectedvirtual

connect to the state set changed signal so we can invalidate the uniforms.

virtual void makVrv::DtOsgCullVisitor::slot_coordinateSystemChanged ( )

protectedvirtual

slot for when the coordinate system changes

Member Data Documentation

DtOsgCullVisitorParameters* makVrv::DtOsgCullVisitor::myInfoCopy

protected

double makVrv::DtOsgCullVisitor::myAltitude2D

protected

double makVrv::DtOsgCullVisitor::myAltitude3D

protected

osg::Matrix makVrv::DtOsgCullVisitor::myWorldToWindowMatrix

protected

DtDe& makVrv::DtOsgCullVisitor::myDe

protected

boost::signalslib::connection makVrv::DtOsgCullVisitor::m_signalConnection

protected

bool makVrv::DtOsgCullVisitor::myIsInTerrain

protected

DtSignalConnectionManager makVrv::DtOsgCullVisitor::myConnections

protected

DtCoordinateSystem* makVrv::DtOsgCullVisitor::myCoordinateSystem = nullptr

protected

local clone of the system wide coordinate system. for thread safety.

double makVrv::DtOsgCullVisitor::myMaximumMagnificationAngle

protected

DtSkyObjectManager& makVrv::DtOsgCullVisitor::mySkyObjectManager

protected

bool makVrv::DtOsgCullVisitor::myHasCurrentCamera

protected

osg::Matrix makVrv::DtOsgCullVisitor::myCurrentCameraViewMatrixI

protected

osg::Matrix makVrv::DtOsgCullVisitor::myMainCameraViewMatrixI

protected

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

/data/exports/nrhent7-1/nightly/docs/vrForces.vrf5-2-branch/include/vrvOsg/DtOsgCullVisitor.h

Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation