makVrv::DtIndirectGeometryAggregator Class Reference

Indirect rendering works because we are able to combine multiple geometries into a single 'aggregated geometry' and render this with a single draw call This visitor allows us to incrementally aggregate multiple such osg nodes (e.g flight files) More...

Inheritance diagram for makVrv::DtIndirectGeometryAggregator:

Public Member Functions
	DtIndirectGeometryAggregator (osg::ref_ptr< osg::Geometry > aggregatedGeometry, VectorGeometryLocations &locations, VectorMaterials &materials, VectorOsgTextures &textures, const DtLodInfo &lodInfo, const DtIndirectTextureCollectionPolicy &textureCollectionPolicy, const std::string &modelFileName)
	Constructor 'aggregatedGeometry', represents the flattened vertex, index buffer of all geometries/drawables encountered so far 'locations' is a flattened list of DtGeometrySpecification's (see DtGeometrySpecification) corresponding to aggregatedGeometry 'textures' is a flattened list of textures corresponding to aggregatedGeometry 'lodInfo' is the lod information (obtained from the read file) This is used to set the bounding box of each geometry visited herein 'textureCollectionPolicy' desrcribes how the textures will be collected and stored.
virtual	~DtIndirectGeometryAggregator ()
	Destructor.
virtual void	apply (osg::Geometry &geometry)
	overridden to aggregate the geometry
virtual void	apply (osg::Geode &geode)
	overridden from osg::NodeVisitor
virtual void	apply (osg::Node &node)
	overridden from osg::NodeVisitor
virtual bool	geometryNotSupported (const osg::Geometry &geometry) const
	Can the current system handle this geometry setup?
virtual int	numGeodes () const
	number of geodes visited/encountered
virtual int	numGeometries () const
	number of geometries visited/encountered

Protected Member Functions
virtual DtMaterial	findMaterial (osg::StateSet *ss)
virtual bool	findCullFaceEnabled (osg::StateSet *ss)

Protected Attributes
int	myNumGeodes
int	myNumGeometries
VectorGeometryLocations &	myLocations
VectorMaterials &	myMaterials
VectorOsgTextures &	myTextures
osg::ref_ptr< osg::Geometry >	myAggregatedGeometry
std::stack < DtIndirectGeometryTexturesPointers >	myTextureStack
std::stack< DtMaterial >	myMaterialStack
std::stack< bool >	myCullFaceEnabledStack
const DtLodInfo	myLodInfo
const DtIndirectTextureCollectionPolicy &	myTextureCollectionPolicy
const std::string	myModelFileName

Static Protected Attributes
static const DtMaterial	theDefaultMaterial

Private Member Functions
	DtIndirectGeometryAggregator ()
	unimplemented default constructor

Detailed Description

Indirect rendering works because we are able to combine multiple geometries into a single 'aggregated geometry' and render this with a single draw call This visitor allows us to incrementally aggregate multiple such osg nodes (e.g flight files)

Constructor & Destructor Documentation

makVrv::DtIndirectGeometryAggregator::DtIndirectGeometryAggregator	(	osg::ref_ptr< osg::Geometry >	aggregatedGeometry,
		VectorGeometryLocations &	locations,
		VectorMaterials &	materials,
		VectorOsgTextures &	textures,
		const DtLodInfo &	lodInfo,
		const DtIndirectTextureCollectionPolicy &	textureCollectionPolicy,
		const std::string &	modelFileName
	)

Constructor 'aggregatedGeometry', represents the flattened vertex, index buffer of all geometries/drawables encountered so far 'locations' is a flattened list of DtGeometrySpecification's (see DtGeometrySpecification) corresponding to aggregatedGeometry 'textures' is a flattened list of textures corresponding to aggregatedGeometry 'lodInfo' is the lod information (obtained from the read file) This is used to set the bounding box of each geometry visited herein 'textureCollectionPolicy' desrcribes how the textures will be collected and stored.

This is implementation specific (e.g. cdb, regular effect textures, tec) 'modelFileName' is just a debug name typically corresponding to the node we are visiting to aggregate further geometry

virtual makVrv::DtIndirectGeometryAggregator::~DtIndirectGeometryAggregator ( )

virtual

Destructor.

makVrv::DtIndirectGeometryAggregator::DtIndirectGeometryAggregator ( )

private

unimplemented default constructor

Member Function Documentation

virtual void makVrv::DtIndirectGeometryAggregator::apply ( osg::Geometry &  geometry )

virtual

overridden to aggregate the geometry

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

virtual

overridden from osg::NodeVisitor

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

virtual

overridden from osg::NodeVisitor

virtual bool makVrv::DtIndirectGeometryAggregator::geometryNotSupported ( const osg::Geometry &  geometry ) const

virtual

Can the current system handle this geometry setup?

virtual int makVrv::DtIndirectGeometryAggregator::numGeodes ( ) const

virtual

number of geodes visited/encountered

virtual int makVrv::DtIndirectGeometryAggregator::numGeometries ( ) const

virtual

number of geometries visited/encountered

virtual DtMaterial makVrv::DtIndirectGeometryAggregator::findMaterial ( osg::StateSet *  ss )

protectedvirtual

virtual bool makVrv::DtIndirectGeometryAggregator::findCullFaceEnabled ( osg::StateSet *  ss )

protectedvirtual

Member Data Documentation

int makVrv::DtIndirectGeometryAggregator::myNumGeodes

protected

int makVrv::DtIndirectGeometryAggregator::myNumGeometries

protected

VectorGeometryLocations& makVrv::DtIndirectGeometryAggregator::myLocations

protected

VectorMaterials& makVrv::DtIndirectGeometryAggregator::myMaterials

protected

VectorOsgTextures& makVrv::DtIndirectGeometryAggregator::myTextures

protected

osg::ref_ptr<osg::Geometry> makVrv::DtIndirectGeometryAggregator::myAggregatedGeometry

protected

std::stack<DtIndirectGeometryTexturesPointers> makVrv::DtIndirectGeometryAggregator::myTextureStack

protected

std::stack<DtMaterial> makVrv::DtIndirectGeometryAggregator::myMaterialStack

protected

std::stack<bool> makVrv::DtIndirectGeometryAggregator::myCullFaceEnabledStack

protected

const DtLodInfo makVrv::DtIndirectGeometryAggregator::myLodInfo

protected

const DtIndirectTextureCollectionPolicy& makVrv::DtIndirectGeometryAggregator::myTextureCollectionPolicy

protected

const std::string makVrv::DtIndirectGeometryAggregator::myModelFileName

protected

const DtMaterial makVrv::DtIndirectGeometryAggregator::theDefaultMaterial

staticprotected

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

• /exports/nfedora7-1/nightly/docs/vrforcesDevelopment.tot/include/vrvOsg/DtIndirectGeometryAggregator.h