handles the lods for all the indirect geometry. sets up and runs a compute shader prepass for processing the lods contains a GPU buffer with the result which is used by the cull compute shader Own by DtIndirectGeometry 1:1

Inheritance diagram for makVrv::DtIndirectLodManager:

[legend]

Classes
struct	IndirectLodInfoInvalidator

struct	IndirectLodInfoRemovalPredicate

Public Types
typedef osg::observer_ptr < osg::Node >	NodeObserverPtr

typedef std::pair < NodeObserverPtr, IndirectLodInfo >	NodeLodInfoPair

typedef std::deque < IndirectLodInfo >	DequeIndirectLodInfos

typedef std::deque < NodeLodInfoPair >	DequeIndirectLodInfoPairs

typedef std::vector < DequeIndirectLodInfos >	DequeIndirectLodInfoArray

typedef DtReusableMemoryVector < IndirectLodInfo, IndirectLodInfoInvalidator, IndirectLodInfoRemovalPredicate >	VectorIndirectLodInfos

Public Types inherited from makVrv::DtIndirectManager
enum	ManagerTypes { BaseClass, LodManager, SwitchManager, DofManager, UvOffsetManager, PerInstanceDataManager }

Public Member Functions
virtual	~DtIndirectLodManager ()

virtual void	releaseGLObjects (osg::State *state) const

virtual void	addLodStacks (int perGeomInstanceIndex, int numGeoms, const DequeIndirectLodInfos &parentLodStack, const DequeIndirectLodInfoArray &lodStacks, const osg::Matrix &inverselocalOriginMatrix, int instanceId)

virtual void	removeLodStacks (int instanceId)

virtual void	processLods (const DtIndirectViewParameters &viewParameters, const DtGlBuffer gpuDofTransformBuffer, const DtGlBuffer gpuDofModelScaleBuffer, const DtGlBuffer gpuInputPerGeomInstancesBuffer, const osg::Camera currentCamera)

virtual const DtGlBuffer *	gpuLodVisibleBuffer (const osg::Camera *currentCamera) const

virtual void	reloadShaders () const

virtual void	printInfo ()

Public Member Functions inherited from makVrv::DtIndirectManager
	DtIndirectManager (DtDe &de, DtInstanceContainer &container)

virtual	~DtIndirectManager ()

Public Attributes
friend	DtIndirectLodManagerCreator

Protected Types
typedef std::map < osg::observer_ptr< const osg::Camera >, DtGlBuffer * >	CameraToBufferMap

typedef std::vector < osg::observer_ptr< const osg::Camera > >	CameraVector

Protected Member Functions
	DtIndirectLodManager (DtDe &de, DtInstanceContainer &container)

virtual void	addLodStack (int perGeomInstanceIndex, int &indexIntoVectorIndirectLodInfos, const DequeIndirectLodInfos &parentLodStack, const DequeIndirectLodInfos &lodStack, const osg::Matrix &inverselocalOriginMatrix)

virtual void	updateLodBuffersIfNecessary ()

virtual void	deleteBuffers (void)

virtual void	tearDownBuffers (void) const

virtual void	flushGpuLodVisibleBuffers ()

Protected Attributes
VectorIndirectLodInfos	myIndirectLodInfos

DtGlBuffer *	myGpuLodInfoBuffer

CameraToBufferMap	myGpuLodVisibleBufferMap

CameraVector	myActiveCameras

bool	myMutableLodInfoDirty

DtIndirectLodProgram *	myMutableLodProgram

DtIndirectClearBufferProgram *	myMutableClearBufferProgram

unsigned int	myMaxPerGeomInstanceId

std::map< int, std::pair< int, int > >	myInstanceIdToPairIndices

Protected Attributes inherited from makVrv::DtIndirectManager
DtInstanceContainer &	myInstanceContainer

DtDe &	myDe

Private Member Functions
	DtIndirectLodManager ()=delete

	DtIndirectLodManager (const DtIndirectLodManager &other)=delete

DtIndirectLodManager &	operator= (const DtIndirectLodManager &other)=delete

Additional Inherited Members
Static Public Member Functions inherited from makVrv::DtIndirectManager
static int	managerType ()

Member Typedef Documentation

typedef osg::observer_ptr<osg::Node> makVrv::DtIndirectLodManager::NodeObserverPtr

typedef std::pair<NodeObserverPtr, IndirectLodInfo> makVrv::DtIndirectLodManager::NodeLodInfoPair

typedef std::deque<IndirectLodInfo> makVrv::DtIndirectLodManager::DequeIndirectLodInfos

typedef std::deque<NodeLodInfoPair> makVrv::DtIndirectLodManager::DequeIndirectLodInfoPairs

typedef std::vector<DequeIndirectLodInfos> makVrv::DtIndirectLodManager::DequeIndirectLodInfoArray

typedef DtReusableMemoryVector<IndirectLodInfo, IndirectLodInfoInvalidator, IndirectLodInfoRemovalPredicate> makVrv::DtIndirectLodManager::VectorIndirectLodInfos

typedef std::map<osg::observer_ptr<const osg::Camera>, DtGlBuffer*> makVrv::DtIndirectLodManager::CameraToBufferMap

protected

The buffer containing a bool for each instance to know if it should be drawn or not.

typedef std::vector<osg::observer_ptr<const osg::Camera> > makVrv::DtIndirectLodManager::CameraVector

protected

Constructor & Destructor Documentation

virtual makVrv::DtIndirectLodManager::~DtIndirectLodManager ( )

virtual

DTOR.

makVrv::DtIndirectLodManager::DtIndirectLodManager	(	DtDe &	de,
		DtInstanceContainer &	container
	)

protected

CTOR. only creator can create.

makVrv::DtIndirectLodManager::DtIndirectLodManager ( )

privatedelete

default constructor not implemented

makVrv::DtIndirectLodManager::DtIndirectLodManager ( const DtIndirectLodManager & other )

privatedelete

Copy Constructor not implemented – Copy Not Allowed.

Member Function Documentation

DtIndirectLodManager& makVrv::DtIndirectLodManager::operator= ( const DtIndirectLodManager & other )

privatedelete

Assignment Operator Not implemented � Assignment Not Allowed.

virtual void makVrv::DtIndirectLodManager::releaseGLObjects ( osg::State * state ) const

virtual

called when the context is deleted in order to clean up GPU data

virtual void makVrv::DtIndirectLodManager::addLodStacks	(	int	perGeomInstanceIndex,
		int	numGeoms,
		const DequeIndirectLodInfos &	parentLodStack,
		const DequeIndirectLodInfoArray &	lodStacks,
		const osg::Matrix &	inverselocalOriginMatrix,
		int	instanceId
	)

virtual

add a vector of lod stacks to the lod management system

virtual void makVrv::DtIndirectLodManager::removeLodStacks ( int instanceId )

virtual

remove the lod stacks linked to this instanceId

virtual void makVrv::DtIndirectLodManager::processLods	(	const DtIndirectViewParameters &	viewParameters,
		const DtGlBuffer *	gpuDofTransformBuffer,
		const DtGlBuffer *	gpuDofModelScaleBuffer,
		const DtGlBuffer *	gpuInputPerGeomInstancesBuffer,
		const osg::Camera *	currentCamera
	)

virtual

setup and run the lod compute shader which checks all lods against the camera position to see if their children should be visible

virtual const DtGlBuffer* makVrv::DtIndirectLodManager::gpuLodVisibleBuffer ( const osg::Camera * currentCamera ) const

virtual

get the buffer which has the output of the lod compute shader based on the current camera since we need to process multiple cameras between each draw.

virtual void makVrv::DtIndirectLodManager::reloadShaders ( ) const

virtual

reload the compute shader shaders

virtual void makVrv::DtIndirectLodManager::printInfo ( )

virtual

print out the info of what's contained in the buffer

virtual void makVrv::DtIndirectLodManager::addLodStack	(	int	perGeomInstanceIndex,
		int &	indexIntoVectorIndirectLodInfos,
		const DequeIndirectLodInfos &	parentLodStack,
		const DequeIndirectLodInfos &	lodStack,
		const osg::Matrix &	inverselocalOriginMatrix
	)

protectedvirtual

add a single stack to the lod info input buffer The parent stack lod centers are multiplied by the inverse local offset so they correctly gives the view position when multiplied by the model view matrix.

virtual void makVrv::DtIndirectLodManager::updateLodBuffersIfNecessary ( )

protectedvirtual

send down any new lod infomation that has been recieved

virtual void makVrv::DtIndirectLodManager::deleteBuffers ( void )

protectedvirtual

delete the gpu buffers

virtual void makVrv::DtIndirectLodManager::tearDownBuffers ( void ) const

protectedvirtual

cleanup the GPU buffers on the gpu side but leave the CPU objects

virtual void makVrv::DtIndirectLodManager::flushGpuLodVisibleBuffers ( )

protectedvirtual

check to see if any cameras are no longer valid and destroy their buffers if they are invalid.

Member Data Documentation

friend makVrv::DtIndirectLodManager::DtIndirectLodManagerCreator

only creator can create

VectorIndirectLodInfos makVrv::DtIndirectLodManager::myIndirectLodInfos

protected

DtGlBuffer* makVrv::DtIndirectLodManager::myGpuLodInfoBuffer

protected

The buffer containing all the lod infos for all instances managed by this manager.

CameraToBufferMap makVrv::DtIndirectLodManager::myGpuLodVisibleBufferMap

protected

CameraVector makVrv::DtIndirectLodManager::myActiveCameras

protected

bool makVrv::DtIndirectLodManager::myMutableLodInfoDirty

mutableprotected

DtIndirectLodProgram* makVrv::DtIndirectLodManager::myMutableLodProgram

mutableprotected

DtIndirectClearBufferProgram* makVrv::DtIndirectLodManager::myMutableClearBufferProgram

mutableprotected

unsigned int makVrv::DtIndirectLodManager::myMaxPerGeomInstanceId

protected

std::map<int, std::pair<int, int> > makVrv::DtIndirectLodManager::myInstanceIdToPairIndices

protected

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

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

Classes

Public Types

Public Member Functions

Public Attributes

Protected Types

Protected Member Functions

Protected Attributes

Private Member Functions

Additional Inherited Members

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation