makVrv::DtOsgCullVisitor Class Reference

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:

Public Member Functions
	DtOsgCullVisitor (DtDe &de)
	DtOsgCullVisitor (const DtOsgCullVisitor &)
void	initializeViewDependentSettings ()
bool	orthoCulling () const
bool	coordinateSystemChanged () const
virtual float	getDistanceToScreenEdge (const osg::Vec3 &vec) const
virtual float	altitude2D () const
const DtOsgCullVisitorParameters *	visitorParameters () const
void	setInReflectionPass (bool bReflecting)
bool	inReflectionPass (void) const
const DtDe &	de (void) const
DtDe &	de (void)
virtual void	apply (osg::Transform &node)
virtual void	apply (osg::Node &node)
virtual void	apply (osg::Group &group)
virtual void	apply (osg::LightSource &lightSource)
virtual void	apply (osg::Geode &geode)
virtual void	apply (osg::Camera &node)
virtual void	apply (osg::Billboard &node)
virtual void	apply (osg::PagedLOD &node)
virtual void	apply (osg::OcclusionQueryNode &node)
virtual bool	isCulled (osg::Node &node, double scaleFactor)

Protected Member Functions
virtual	~DtOsgCullVisitor ()
virtual float	getDistanceToViewPoint (const osg::Vec3 &vec, bool useLOD) const
virtual float	calculateFocusPointDistance (const osg::Vec3 &vec, bool useLOD, float magVal) const
DtOsgCullVisitorParameters *	getVisitorParameters () const
virtual osgUtil::CullVisitor *	clone () const
virtual void	reset ()
virtual bool	isOcean (const osg::Node *node) const
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	myIsInReflectionPass
bool	myIsInTerrain
DtSignalConnectionManager	myConnections
DtCoordinateSystem *	myCoordinateSystem = nullptr
double	myMaximumMagnificationAngle

Constructor & Destructor Documentation

makVrv::DtOsgCullVisitor::DtOsgCullVisitor

(

DtDe &

de

)

CTOR.

makVrv::DtOsgCullVisitor::DtOsgCullVisitor

(

const DtOsgCullVisitor &

)

Copy constructor.

virtual makVrv::DtOsgCullVisitor::~DtOsgCullVisitor ( )

protectedvirtual

destructor

Member Function Documentation

void makVrv::DtOsgCullVisitor::initializeViewDependentSettings

(

)

Virtual void.

bool makVrv::DtOsgCullVisitor::orthoCulling

(

)

const

Query whether this visitor is doing orthographic culling.

bool makVrv::DtOsgCullVisitor::coordinateSystemChanged

(

)

const

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.

const DtOsgCullVisitorParameters* makVrv::DtOsgCullVisitor::visitorParameters

(

)

const

Get the cull visitor parameters.

void makVrv::DtOsgCullVisitor::setInReflectionPass ( bool  bReflecting )

inline

Indicate whether we are now in a reflection pass.

bool makVrv::DtOsgCullVisitor::inReflectionPass ( void  ) const

inline

Query whether this visitor is in a reflection pass.

const DtDe& makVrv::DtOsgCullVisitor::de

(

void

)

const

const accessor for DtDe. This accessor is useful for retrieving DtDe, in classes where DtDe is not directly accessible for example: osg earth, osg plugins

DtDe& makVrv::DtOsgCullVisitor::de

(

void

)

const accessor for DtDe. This accessor is useful for retrieving DtDe, in classes where DtDe is not directly accessible for example: osg earth, osg plugins

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

virtual

check for scalable transform and scale as required

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

virtual

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

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

virtual

check for scalable group and scale bounding sphere as required

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

virtual

check for emissive lights in models and make them global

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

virtual

sync shader uniforms to the state

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

virtual

currently unused but can be used for profiling the camera apply

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

virtual

process the cull for billboards

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

virtual

used so we know when the cull visitor is below a paged lod in the scene graph this lets us apply the paged lod magnification scale factor only to things under paged lods

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

virtual

process and check the queries for a this query node.

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

protectedvirtual

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

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

protectedvirtual

utility function for calculating the distance based on focus points.

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

protected

Fetches the info from the visitor's renderInfo object.

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

protectedvirtual

Protected clone function.

virtual void makVrv::DtOsgCullVisitor::reset ( )

protectedvirtual

reset the light manager and call osgUtil::CullVisitor::reset

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

protectedvirtual

whether is ocean

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

protected

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::myIsInReflectionPass

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

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

• /data/exports/nrhent7-1/nightly/docs/vrForces.vrf5-0-branch/include/vrvOsg/DtOsgCullVisitor.h