AzFramework::OctreeScene Class Reference

#include <OctreeSystemComponent.h>

Inherits AzFramework::IVisibilityScene.

Public Member Functions
	AZ_RTTI (OctreeScene, "{A88E4D86-11F1-4E3F-A91A-66DE99502B93}")
	AZ_CLASS_ALLOCATOR (OctreeScene, AZ::SystemAllocator)
	AZ_DISABLE_COPY_MOVE (OctreeScene)
	OctreeScene (const AZ::Name &sceneName)
const AZ::Name &	GetName () const override
void	InsertOrUpdateEntry (VisibilityEntry &entry) override
void	RemoveEntry (VisibilityEntry &entry) override
void	Enumerate (const AZ::Aabb &aabb, const IVisibilityScene::EnumerateCallback &callback) const override
void	Enumerate (const AZ::Sphere &sphere, const IVisibilityScene::EnumerateCallback &callback) const override
void	Enumerate (const AZ::Hemisphere &hemisphere, const IVisibilityScene::EnumerateCallback &callback) const override
void	Enumerate (const AZ::Capsule &capsule, const IVisibilityScene::EnumerateCallback &callback) const override
void	Enumerate (const AZ::Frustum &frustum, const IVisibilityScene::EnumerateCallback &callback) const override
void	Enumerate (const AZ::Frustum &includeFrustum, const AZ::Frustum &excludeFrustum, const EnumerateCallback &callback) const override
void	EnumerateNoCull (const IVisibilityScene::EnumerateCallback &callback) const override
uint32_t	GetEntryCount () const override
	Return the number of VisibilityEntries that have been added to the system.
uint32_t	GetNodeCount () const
uint32_t	GetFreeNodeCount () const
uint32_t	GetPageCount () const
uint32_t	GetChildNodeCount () const
void	DumpStats ()
Public Member Functions inherited from AzFramework::IVisibilityScene
	AZ_RTTI (IVisibilityScene, "{822BC414-3CE3-40B4-A9A2-A42EA5B9499F}")

Friends
class	OctreeNode

Additional Inherited Members
Public Types inherited from AzFramework::IVisibilityScene
using	EnumerateCallback = AZStd::function< void(const NodeData &)>

Detailed Description

Implementation of the visibility system interface. This uses a simple adaptive octree to support partitioning an object set for a specific scene and efficiently running gathers and visibility queries.

Member Function Documentation

Enumerate() [1/6]

void AzFramework::OctreeScene::Enumerate ( const AZ::Aabb &  aabb, const IVisibilityScene::EnumerateCallback &  callback  ) const

overridevirtual

Intersects an axis aligned bounding box against the visibility system.

Parameters

aabb	the axis aligned bounding box to test against
callback	the callback to invoke when a node is visible

Implements AzFramework::IVisibilityScene.

Enumerate() [2/6]

void AzFramework::OctreeScene::Enumerate ( const AZ::Capsule &  capsule, const IVisibilityScene::EnumerateCallback &  callback  ) const

overridevirtual

Intersects a capsule against the visibility system.

Parameters

capsule	the capsule to test against
callback	the callback to invoke when a node is visible

Implements AzFramework::IVisibilityScene.

Enumerate() [3/6]

void AzFramework::OctreeScene::Enumerate ( const AZ::Frustum &  frustum, const IVisibilityScene::EnumerateCallback &  callback  ) const

overridevirtual

Intersects a frustum against the visibility system.

Parameters

frustum	the frustum to test against
callback	the callback to invoke when a node is visible

Implements AzFramework::IVisibilityScene.

Enumerate() [4/6]

void AzFramework::OctreeScene::Enumerate ( const AZ::Frustum &  includeFrustum, const AZ::Frustum &  excludeFrustum, const EnumerateCallback &  callback  ) const

overridevirtual

Intersects a frustum against the visibility system, but rejects everything entirely contained inside the excludeFrustum. This is useful for cascade shadows where a larger cascade need not render things completely covered by a smaller cascade.

Parameters

includeFrustum	the frustum to test against for inclusion
excludeFrustum	the frustum to test against for exclusion
callback	the callback to invoke when a node is visible

Implements AzFramework::IVisibilityScene.

Enumerate() [5/6]

void AzFramework::OctreeScene::Enumerate ( const AZ::Hemisphere &  hemisphere, const IVisibilityScene::EnumerateCallback &  callback  ) const

overridevirtual

Intersects a hemisphere against the visibility system.

Parameters

hemisphere	the hemisphere to test against
callback	the callback to invoke when a node is visible

Implements AzFramework::IVisibilityScene.

Enumerate() [6/6]

void AzFramework::OctreeScene::Enumerate ( const AZ::Sphere &  sphere, const IVisibilityScene::EnumerateCallback &  callback  ) const

overridevirtual

Intersects a sphere against the visibility system.

Parameters

sphere	the sphere to test against
callback	the callback to invoke when a node is visible

Implements AzFramework::IVisibilityScene.

EnumerateNoCull()

void AzFramework::OctreeScene::EnumerateNoCull ( const IVisibilityScene::EnumerateCallback &  callback ) const

overridevirtual

Enumerate all OctreeNodes that have any entries in them (without any culling).

Parameters

callback

the callback to invoke when a node is visible

Implements AzFramework::IVisibilityScene.

GetName()

const AZ::Name& AzFramework::OctreeScene::GetName ( ) const

overridevirtual

IVisibilityScene overrides.

Implements AzFramework::IVisibilityScene.

GetNodeCount()

uint32_t AzFramework::OctreeScene::GetNodeCount

(

)

const

Stats

InsertOrUpdateEntry()

void AzFramework::OctreeScene::InsertOrUpdateEntry ( VisibilityEntry &  visibilityEntry )

overridevirtual

Insert or update an entry within the visibility system. This encompasses the following three scenarios:

Parameters

visibilityEntry

data for the object being added/updated

Implements AzFramework::IVisibilityScene.

RemoveEntry()

void AzFramework::OctreeScene::RemoveEntry ( VisibilityEntry &  visibilityEntry )

overridevirtual

Removes an entry from the visibility system.

Parameters

visibilityEntry

data for the object being removed

Implements AzFramework::IVisibilityScene.

---

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

• Code/Framework/AzFramework/AzFramework/Visibility/OctreeSystemComponent.h