This class is a component of the DtIndirectGeometry It inputs are: -> the instances registered with DtIndirectGeometry -> the viewing parameters (view matrix, projection matrix, etc) -> the indirect registrar (so that it can generate gpu data for -> the models of the instances from the interim data accessible -> via the registrar It outputs are: -> Tndirect command buffer -> The count of the indirect commands -> The input instances shuffled around/culled/lod'ed reflecting -> their order within the indirect command buffer generated -> It will also (optionally) do culling and lod. More...

Classes
struct	InstancesOffsetAndNumOfInstances

struct	StateIdOffsetAndMaxCommands

Public Types
typedef std::vector < StateIdOffsetAndMaxCommands >	VectorStateIdOffsetAndMaxCommands

Public Member Functions
virtual	~DtGpuCullingAndLod ()
	destructor More...

virtual void	setRegistrar (DtIndirectGeometryRegistrar *registrar)
	set the registrar More...

virtual void	setCullShaderConfig (const DtCullShaderConfig &cullShaderConfig)
	set the compute shader config More...

virtual const DtCullShaderConfig &	cullShaderConfig (void) const
	get the compute shader config More...

virtual void	updateGpuBuffers (DtIndirectRenderingParameters &irParams, const MapIntToInt &modelIdsToNumInstances, osg::RenderInfo &renderInfo)
	updateGpuBuffers More...

virtual void	doCullingAndLOD (const DtIndirectViewParameters &viewParameters, DtIndirectRenderingParameters &irParams, osg::RenderInfo &renderInfo, DtGlBuffer *gpuLodVisibleBuffer)
	do the culling and the lod More...

virtual void	bindGpuOutputInstanceBuffer (void) const
	bind the output instance buffer More...

virtual void	unbindGpuOutputInstanceBuffer (void) const
	unbind the output instance buffer More...

virtual bool	bindIndirectThings ()
	bind the indirect command buffer and the count buffer returns false if handle is 0. More...

virtual void	unbindIndirectThings ()
	unbind the indirect command buffer and the count buffer More...

virtual bool	useInstanceCount (void) const
	whether we are optimizing for shared models (useInstanceCount()=true) or unique models (useInstanceCount()=false), across instances More...

virtual int	numDrawCommands (void) const
	The number of draw commands generated. More...

virtual void	setShadersFolderPath (const std::string &shaderFolderPath)
	set up the shader folder path (to enable us to load shaders, de is not accessible here) More...

virtual const std::string &	shadersFolderPath (void) const
	get the shader folder path More...

virtual void	setShadersFileCache (DtOsgShaderFilesCache *shaderFilesCache)
	set up the shader file cache (to enable us to load shaders, de is not accessible here) More...

virtual const DtOsgShaderFilesCache *	shadersFileCache (void) const
	gets the shader file cache which contains all the shaders used by the culling comput shader More...

virtual void	releaseGLObjects (osg::State *state) const
	release the GL objects for the GpuCullingAndLod compute shader More...

virtual void	reloadShaders () const
	destroy the cull program and shader if they exists so they can be recreated next frame. More...

virtual unsigned int	maxNumInstances (void) const
	get the max number of instances that can possibly be rendered if none are culled out. More...

virtual const VectorStateIdOffsetAndMaxCommands &	stateIdOffsetAndMaxCommands (void) const
	get the map of the state id to their offset/number More...

virtual void	setInstanceContainer (DtInstanceContainer *instanceContainer)

virtual bool	readyToUpdateBuffers ()
	helper function to decide if a job should be launched More...

virtual bool	needTextureUpdate () const
	are there textures that still need updating. More...

Protected Member Functions
	DtGpuCullingAndLod (DtDe &de)
	constructor More...

virtual bool	updateGpuTexturesBuffer (osg::RenderInfo &renderInfo)
	The buffer containing the bindless textures' addresses of the model textures returns true if there still work happening. More...

virtual void	updateInstancesOffsetAndInstances (const MapIntToInt &modelIdsToNumInstances)
	update the myGpuInstancesOffsetAndNumInstances buffer so it is ready to be used More...

virtual void	updateStateIdMaxNumCommands (const MapIntToInt &modelIdsToNumInstances)
	update the myGpuStateIdToMaxNumCommandsBuffer buffer with the correct max state instances for each state More...

virtual bool	checkSpecBuffersOk (void) const
	check a few of the buffers to make sure they are not null More...


virtual void	updateGpuInputInstancesBuffer ()
	update the various buffers that are fed to the cull shader -> if new models came in -> if textures became available (they can be asynchronously available, e.g. More...

virtual void	updateGpuInputPerGeomInstancesBuffer ()

virtual void	updateGpuGeometrySpecificationsBuffer (const int numGeometries)

virtual void	updateGpuMaterialsBuffer (const int numGeometries)

virtual void	updateGpuGeometryOffsetAndSizeBuffer (int &numGeometries)

virtual void	updateGpuIndirectBuffer ()

virtual void	clearInstanceCountofGpuIndirectBuffer ()

virtual void	clearStateIdCommandCountBuffer ()

Protected Attributes
DtIndirectGeometryRegistrar *	myRegistrar

DtInstanceContainer *	myInstanceContainer

DtGlBuffer *	myGpuInputInstancesBuffer
	The input instances for the GPU (generated/updated from the passed in instance container) More...

DtGlBuffer *	myGpuInputPerGeomInstancesBuffer
	contains switch states/ lod info More...

DtGlBuffer *	myGpuGeometrySpecificationsBuffer
	The spec buffer containing GeometrySpecifications for all the models/lods of the passed in instances. More...

std::vector < DtGeometrySpecification >	myGeometrySpecifications
	c++ buffer that holds the same info More...

std::vector < DtIndirectOffsetAndSize >	myGeometryOffsetAndSizes
	An internal indexing buffer that allows the cull shader to go from and intance to its GeometrySpecification in the Geometry Specification Buffer. More...

DtGlBuffer *	myGpuMaterialsBuffer
	The spec buffer containing Materials for all the models/lods of the passed in instances. More...

DtGlBuffer *	myGpuIndirectBuffer
	The indirect command buffer that will be generated. More...

DtGlBuffer *	myGpuOutputInstancesBuffer
	The re-distributed/culled/lod'ed instances (a subset of the input instances) More...

DtIndirectCullPass *	myCullPass

DtGlBuffer *	myGpuTexturesBuffer

MapIntToInt	myModelIdToIndex

DtCullShaderConfig	myCullShaderConfig

std::vector < InstancesOffsetAndNumOfInstances >	myInstancesOffsetAndNumInstances

DtGlBuffer *	myGpuInstancesOffsetAndNumInstances

std::string	myShaderFolderPath

DtOsgShaderFilesCache *	myShaderFilesCache

unsigned int	myMaxNumInstances

VectorStateIdOffsetAndMaxCommands	myStateIdToMaxNumCommands

DtGlBuffer *	myGpuStateIdToMaxNumCommandsBuffer

DtGlBuffer *	myGpuStateIdToCommandCountBuffer

VectorInts	myGeomSpecIndexToCommandIndex

DtGlBuffer *	myGpuSpecIndexToCommandIndexBuffer

DtDe &	myDe

unsigned int	myLastNumEffectTextures

int	myMutableFirstTextureStreamedModel
	Keep track of the first model using bindless textures. More...

int	myMutableFirstTextureStreamedIndex
	What index to start using bindless textures for a model. More...

bool	myNeedTextureUpdate

int	myStreamedMaterialModelID

int	myStreamedMaterialBytes

int	myStreamedSpecModelID

int	myStreamedSpecBytes

int	myStreamedSpecModelGeomIndex

int	myStreamedGeometryOffsetModelID

int	myNumGeometries

Private Member Functions
	DtGpuCullingAndLod ()
	default constructor More...

	DtGpuCullingAndLod (const DtGpuCullingAndLod &other)
	Copy Constructor not implemented – Copy Not Allowed. More...

DtGpuCullingAndLod &	operator= (const DtGpuCullingAndLod &other)
	Assignment Operator Not implemented � Assignment Not Allowed. More...

Friends
class	DtGpuCullingAndLodCreator

Detailed Description

This class is a component of the DtIndirectGeometry It inputs are: -> the instances registered with DtIndirectGeometry -> the viewing parameters (view matrix, projection matrix, etc) -> the indirect registrar (so that it can generate gpu data for -> the models of the instances from the interim data accessible -> via the registrar It outputs are: -> Tndirect command buffer -> The count of the indirect commands -> The input instances shuffled around/culled/lod'ed reflecting -> their order within the indirect command buffer generated -> It will also (optionally) do culling and lod.

Member Typedef Documentation

typedef std::vector<StateIdOffsetAndMaxCommands> makVrv::DtGpuCullingAndLod::VectorStateIdOffsetAndMaxCommands

Constructor & Destructor Documentation

makVrv::DtGpuCullingAndLod::DtGpuCullingAndLod ( DtDe & de )

protected

constructor

virtual makVrv::DtGpuCullingAndLod::~DtGpuCullingAndLod ( )

virtual

destructor

makVrv::DtGpuCullingAndLod::DtGpuCullingAndLod ( )

private

default constructor

makVrv::DtGpuCullingAndLod::DtGpuCullingAndLod ( const DtGpuCullingAndLod & other )

private

Copy Constructor not implemented – Copy Not Allowed.

Member Function Documentation

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

private

Assignment Operator Not implemented � Assignment Not Allowed.

virtual void makVrv::DtGpuCullingAndLod::setRegistrar ( DtIndirectGeometryRegistrar * registrar )

virtual

set the registrar

virtual void makVrv::DtGpuCullingAndLod::setCullShaderConfig ( const DtCullShaderConfig & cullShaderConfig )

virtual

set the compute shader config

virtual const DtCullShaderConfig& makVrv::DtGpuCullingAndLod::cullShaderConfig ( void ) const

virtual

get the compute shader config

virtual void makVrv::DtGpuCullingAndLod::updateGpuBuffers	(	DtIndirectRenderingParameters &	irParams,
		const MapIntToInt &	modelIdsToNumInstances,
		osg::RenderInfo &	renderInfo
	)

virtual

updateGpuBuffers

virtual void makVrv::DtGpuCullingAndLod::doCullingAndLOD	(	const DtIndirectViewParameters &	viewParameters,
		DtIndirectRenderingParameters &	irParams,
		osg::RenderInfo &	renderInfo,
		DtGlBuffer *	gpuLodVisibleBuffer
	)

virtual

do the culling and the lod

virtual void makVrv::DtGpuCullingAndLod::bindGpuOutputInstanceBuffer ( void ) const

virtual

bind the output instance buffer

virtual void makVrv::DtGpuCullingAndLod::unbindGpuOutputInstanceBuffer ( void ) const

virtual

unbind the output instance buffer

virtual bool makVrv::DtGpuCullingAndLod::bindIndirectThings ( )

virtual

bind the indirect command buffer and the count buffer returns false if handle is 0.

Can happen if the buffer hasn't been re-created yet (e.g. when the context is deleted and recreated), depending on the job/frame syc this can happen a few frames later

virtual void makVrv::DtGpuCullingAndLod::unbindIndirectThings ( )

virtual

unbind the indirect command buffer and the count buffer

virtual bool makVrv::DtGpuCullingAndLod::useInstanceCount ( void ) const

virtual

whether we are optimizing for shared models (useInstanceCount()=true) or unique models (useInstanceCount()=false), across instances

virtual int makVrv::DtGpuCullingAndLod::numDrawCommands ( void ) const

virtual

The number of draw commands generated.

Is a value between [0, DtIndirectGeoUtils::getMaxDrawCountNoCullingNoLod()], inclusive

virtual void makVrv::DtGpuCullingAndLod::setShadersFolderPath ( const std::string & shaderFolderPath )

virtual

set up the shader folder path (to enable us to load shaders, de is not accessible here)

virtual const std::string& makVrv::DtGpuCullingAndLod::shadersFolderPath ( void ) const

virtual

get the shader folder path

virtual void makVrv::DtGpuCullingAndLod::setShadersFileCache ( DtOsgShaderFilesCache * shaderFilesCache )

virtual

set up the shader file cache (to enable us to load shaders, de is not accessible here)

virtual const DtOsgShaderFilesCache* makVrv::DtGpuCullingAndLod::shadersFileCache ( void ) const

virtual

gets the shader file cache which contains all the shaders used by the culling comput shader

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

virtual

release the GL objects for the GpuCullingAndLod compute shader

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

virtual

destroy the cull program and shader if they exists so they can be recreated next frame.

virtual unsigned int makVrv::DtGpuCullingAndLod::maxNumInstances ( void ) const

virtual

get the max number of instances that can possibly be rendered if none are culled out.

virtual const VectorStateIdOffsetAndMaxCommands& makVrv::DtGpuCullingAndLod::stateIdOffsetAndMaxCommands ( void ) const

virtual

get the map of the state id to their offset/number

virtual void makVrv::DtGpuCullingAndLod::setInstanceContainer ( DtInstanceContainer * instanceContainer )

virtual

virtual bool makVrv::DtGpuCullingAndLod::readyToUpdateBuffers ( )

virtual

helper function to decide if a job should be launched

virtual bool makVrv::DtGpuCullingAndLod::needTextureUpdate ( ) const

virtual

are there textures that still need updating.

virtual void makVrv::DtGpuCullingAndLod::updateGpuInputInstancesBuffer ( )

protectedvirtual

update the various buffers that are fed to the cull shader -> if new models came in -> if textures became available (they can be asynchronously available, e.g.

via osg ico) -> if the number of instances changed

virtual void makVrv::DtGpuCullingAndLod::updateGpuInputPerGeomInstancesBuffer ( )

protectedvirtual

virtual void makVrv::DtGpuCullingAndLod::updateGpuGeometrySpecificationsBuffer ( const int numGeometries )

protectedvirtual

virtual void makVrv::DtGpuCullingAndLod::updateGpuMaterialsBuffer ( const int numGeometries )

protectedvirtual

virtual void makVrv::DtGpuCullingAndLod::updateGpuGeometryOffsetAndSizeBuffer ( int & numGeometries )

protectedvirtual

virtual void makVrv::DtGpuCullingAndLod::updateGpuIndirectBuffer ( )

protectedvirtual

virtual void makVrv::DtGpuCullingAndLod::clearInstanceCountofGpuIndirectBuffer ( )

protectedvirtual

virtual void makVrv::DtGpuCullingAndLod::clearStateIdCommandCountBuffer ( )

protectedvirtual

virtual bool makVrv::DtGpuCullingAndLod::updateGpuTexturesBuffer ( osg::RenderInfo & renderInfo )

protectedvirtual

The buffer containing the bindless textures' addresses of the model textures returns true if there still work happening.

virtual void makVrv::DtGpuCullingAndLod::updateInstancesOffsetAndInstances ( const MapIntToInt & modelIdsToNumInstances )

protectedvirtual

update the myGpuInstancesOffsetAndNumInstances buffer so it is ready to be used

virtual void makVrv::DtGpuCullingAndLod::updateStateIdMaxNumCommands ( const MapIntToInt & modelIdsToNumInstances )

protectedvirtual

update the myGpuStateIdToMaxNumCommandsBuffer buffer with the correct max state instances for each state

virtual bool makVrv::DtGpuCullingAndLod::checkSpecBuffersOk ( void ) const

protectedvirtual

check a few of the buffers to make sure they are not null

Friends And Related Function Documentation

friend class DtGpuCullingAndLodCreator

friend

Member Data Documentation

DtIndirectGeometryRegistrar* makVrv::DtGpuCullingAndLod::myRegistrar

protected

DtInstanceContainer* makVrv::DtGpuCullingAndLod::myInstanceContainer

protected

DtGlBuffer* makVrv::DtGpuCullingAndLod::myGpuInputInstancesBuffer

protected

The input instances for the GPU (generated/updated from the passed in instance container)

DtGlBuffer* makVrv::DtGpuCullingAndLod::myGpuInputPerGeomInstancesBuffer

protected

contains switch states/ lod info

DtGlBuffer* makVrv::DtGpuCullingAndLod::myGpuGeometrySpecificationsBuffer

protected

The spec buffer containing GeometrySpecifications for all the models/lods of the passed in instances.

std::vector<DtGeometrySpecification> makVrv::DtGpuCullingAndLod::myGeometrySpecifications

protected

c++ buffer that holds the same info

std::vector<DtIndirectOffsetAndSize> makVrv::DtGpuCullingAndLod::myGeometryOffsetAndSizes

protected

An internal indexing buffer that allows the cull shader to go from and intance to its GeometrySpecification in the Geometry Specification Buffer.

DtGlBuffer* makVrv::DtGpuCullingAndLod::myGpuMaterialsBuffer

protected

The spec buffer containing Materials for all the models/lods of the passed in instances.

DtGlBuffer* makVrv::DtGpuCullingAndLod::myGpuIndirectBuffer

protected

The indirect command buffer that will be generated.

DtGlBuffer* makVrv::DtGpuCullingAndLod::myGpuOutputInstancesBuffer

protected

The re-distributed/culled/lod'ed instances (a subset of the input instances)

DtIndirectCullPass* makVrv::DtGpuCullingAndLod::myCullPass

protected

DtGlBuffer* makVrv::DtGpuCullingAndLod::myGpuTexturesBuffer

protected

MapIntToInt makVrv::DtGpuCullingAndLod::myModelIdToIndex

protected

DtCullShaderConfig makVrv::DtGpuCullingAndLod::myCullShaderConfig

protected

std::vector<InstancesOffsetAndNumOfInstances> makVrv::DtGpuCullingAndLod::myInstancesOffsetAndNumInstances

protected

DtGlBuffer* makVrv::DtGpuCullingAndLod::myGpuInstancesOffsetAndNumInstances

protected

std::string makVrv::DtGpuCullingAndLod::myShaderFolderPath

protected

DtOsgShaderFilesCache* makVrv::DtGpuCullingAndLod::myShaderFilesCache

protected

unsigned int makVrv::DtGpuCullingAndLod::myMaxNumInstances

protected

VectorStateIdOffsetAndMaxCommands makVrv::DtGpuCullingAndLod::myStateIdToMaxNumCommands

protected

DtGlBuffer* makVrv::DtGpuCullingAndLod::myGpuStateIdToMaxNumCommandsBuffer

protected

DtGlBuffer* makVrv::DtGpuCullingAndLod::myGpuStateIdToCommandCountBuffer

protected

VectorInts makVrv::DtGpuCullingAndLod::myGeomSpecIndexToCommandIndex

protected

DtGlBuffer* makVrv::DtGpuCullingAndLod::myGpuSpecIndexToCommandIndexBuffer

protected

DtDe& makVrv::DtGpuCullingAndLod::myDe

protected

unsigned int makVrv::DtGpuCullingAndLod::myLastNumEffectTextures

protected

int makVrv::DtGpuCullingAndLod::myMutableFirstTextureStreamedModel

mutableprotected

Keep track of the first model using bindless textures.

int makVrv::DtGpuCullingAndLod::myMutableFirstTextureStreamedIndex

mutableprotected

What index to start using bindless textures for a model.

bool makVrv::DtGpuCullingAndLod::myNeedTextureUpdate

protected

int makVrv::DtGpuCullingAndLod::myStreamedMaterialModelID

protected

int makVrv::DtGpuCullingAndLod::myStreamedMaterialBytes

protected

int makVrv::DtGpuCullingAndLod::myStreamedSpecModelID

protected

int makVrv::DtGpuCullingAndLod::myStreamedSpecBytes

protected

int makVrv::DtGpuCullingAndLod::myStreamedSpecModelGeomIndex

protected

int makVrv::DtGpuCullingAndLod::myStreamedGeometryOffsetModelID

protected

int makVrv::DtGpuCullingAndLod::myNumGeometries

protected

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

/data/exports/nrhent7-1/nightly/docs/vrForces.vrf4-8-branch/include/vrvOsg/DtGpuCullingAndLod.h

Classes

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Friends

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation