Handles the management of mesh resources. More...

#include <OgreMeshManager2.h>

Inheritance diagram for Ogre::MeshManager:

Public Member Functions
	MeshManager ()

	~MeshManager () override

void	_initialise ()
	Initialises the manager, only to be called by OGRE internally.

void	_setVaoManager (VaoManager *vaoManager)

MeshPtr	create (const String &name, const String &group, bool isManual=false, ManualResourceLoader loader=0, const NameValuePairList createParams=0)
	Create a new mesh.

MeshPtr	createByImportingV1 (const String &name, const String &groupName, v1::Mesh *mesh, bool halfPos, bool halfTexCoords, bool qTangents, bool halfPose=true)
	Imports a v1 mesh to new mesh, with optional optimization conversions.

MeshPtr	createManual (const String &name, const String &groupName, ManualResourceLoader *loader=0)
	Creates a new Mesh specifically for manual definition rather than loading from an object file.

ResourceCreateOrRetrieveResult	createOrRetrieve (const String &name, const String &group, bool isManual=false, ManualResourceLoader loader=0, const NameValuePairList params=0, BufferType vertexBufferType=BT_IMMUTABLE, BufferType indexBufferType=BT_IMMUTABLE, bool vertexBufferShadowed=true, bool indexBufferShadowed=true)
	Create a new mesh, or retrieve an existing one with the same name if it already exists.

Real	getBoundsPaddingFactor ()
	Gets the factor by which the bounding box of an entity is padded.

MeshPtr	getByName (const String &name, const String &groupName=ResourceGroupManager::AUTODETECT_RESOURCE_GROUP_NAME)
	Get a resource by name.

MeshPtr	load (const String &filename, const String &groupName, BufferType vertexBufferType=BT_IMMUTABLE, BufferType indexBufferType=BT_IMMUTABLE, bool vertexBufferShadowed=true, bool indexBufferShadowed=true)
	Loads a mesh from a file, making it immediately available for use.

void	loadResource (Resource *res) override
	Sets the listener used to control mesh loading through the serializer.

MeshPtr	prepare (const String &filename, const String &groupName, BufferType vertexBufferType=BT_IMMUTABLE, BufferType indexBufferType=BT_IMMUTABLE, bool vertexBufferShadowed=true, bool indexBufferShadowed=true)
	Prepares a mesh for loading from a file.

void	setBoundsPaddingFactor (Real paddingFactor)
	Sets the factor by which the bounding box of an entity is padded.

Public Member Functions inherited from Ogre::ResourceManager
	ResourceManager ()

	~ResourceManager () override

virtual void	_notifyResourceLoaded (Resource *res)
	Notify this manager that a resource which it manages has been loaded.

virtual void	_notifyResourceTouched (Resource *res)
	Notify this manager that a resource which it manages has been 'touched', i.e.

virtual void	_notifyResourceUnloaded (Resource *res)
	Notify this manager that a resource which it manages has been unloaded.

virtual ResourceCreateOrRetrieveResult	createOrRetrieve (const String &name, const String &group, bool isManual=false, ManualResourceLoader loader=0, const NameValuePairList createParams=0)
	Create a new resource, or retrieve an existing one with the same name if it already exists.

virtual ResourcePtr	createResource (const String &name, const String &group, bool isManual=false, ManualResourceLoader loader=0, const NameValuePairList createParams=0)
	Creates a new blank resource, but does not immediately load it.

void	destroyAllResourcePools ()
	destroy all pools

void	destroyResourcePool (const String &name)
	Destroy a resource pool.

void	destroyResourcePool (ResourcePool *pool)
	Destroy a resource pool.

virtual ResourcePtr	getByHandle (ResourceHandle handle)
	Retrieves a pointer to a resource by handle, or null if the resource does not exist.

Real	getLoadingOrder () const override
	Gets the relative loading order of resources of this type.

virtual size_t	getMemoryBudget () const
	Get the limit on the amount of memory this resource handler may use.

virtual size_t	getMemoryUsage () const
	Gets the current memory usage, in bytes.

virtual ResourcePtr	getResourceByName (const String &name, const String &groupName=ResourceGroupManager::AUTODETECT_RESOURCE_GROUP_NAME)
	Retrieves a pointer to a resource by name, or null if the resource does not exist.

ResourceMapIterator	getResourceIterator ()
	Returns an iterator over all resources in this manager.

ResourcePool *	getResourcePool (const String &name)
	Create a resource pool, or reuse one that already exists.

const String &	getResourceType () const
	Gets a string identifying the type of resource this manager handles.

const StringVector &	getScriptPatterns () const override
	Gets the file patterns which should be used to find scripts for this ResourceManager.

virtual bool	getVerbose ()
	Gets whether this manager and its resources habitually produce log output.

virtual ResourcePtr	load (const String &name, const String &group, bool isManual=false, ManualResourceLoader loader=0, const NameValuePairList loadParams=0, bool backgroundThread=false)
	Generic load method, used to create a Resource specific to this ResourceManager without using one of the specialised 'load' methods (containing per-Resource-type parameters).

void	parseScript (DataStreamPtr &stream, const String &groupName) override
	Parse the definition of a set of resources from a script file.

virtual ResourcePtr	prepare (const String &name, const String &group, bool isManual=false, ManualResourceLoader loader=0, const NameValuePairList loadParams=0, bool backgroundThread=false)
	Generic prepare method, used to create a Resource specific to this ResourceManager without using one of the specialised 'prepare' methods (containing per-Resource-type parameters).

void	reloadAll (bool reloadableOnly=true)
	Caused all currently loaded resources to be reloaded.

virtual void	reloadAll (Resource::LoadingFlags flags)
	Caused all currently loaded resources to be reloaded.

void	reloadUnreferencedResources (bool reloadableOnly=true)
	Caused all currently loaded but not referenced by any other object resources to be reloaded.

virtual void	remove (const ResourcePtr &r)
	Remove a single resource.

virtual void	remove (const String &name)
	Remove a single resource by name.

virtual void	remove (ResourceHandle handle)
	Remove a single resource by handle.

virtual void	removeAll ()
	Removes all resources.

virtual void	removeUnreferencedResources (bool reloadableOnly=true)
	Remove all resources which are not referenced by any other object.

virtual bool	resourceExists (const String &name)
	Returns whether the named resource exists in this manager.

virtual bool	resourceExists (ResourceHandle handle)
	Returns whether a resource with the given handle exists in this manager.

virtual void	setMemoryBudget (size_t bytes)
	Set a limit on the amount of memory this resource handler may use.

virtual void	setVerbose (bool v)
	Sets whether this manager and its resources habitually produce log output.

virtual void	unload (const String &name)
	Unloads a single resource by name.

virtual void	unload (ResourceHandle handle)
	Unloads a single resource by handle.

void	unloadAll (bool reloadableOnly=true)
	Unloads all resources.

virtual void	unloadAll (Resource::LoadingFlags flags)
	Unloads all resources.

void	unloadUnreferencedResources (bool reloadableOnly=true)
	Unload all resources which are not referenced by any other object.

Public Member Functions inherited from Ogre::ScriptLoader
virtual	~ScriptLoader ()

Public Member Functions inherited from Ogre::Singleton< MeshManager >
	Singleton ()

	~Singleton ()

Public Member Functions inherited from Ogre::ManualResourceLoader
	ManualResourceLoader ()

virtual	~ManualResourceLoader ()

virtual void	prepareResource (Resource *resource)
	Called when a resource wishes to load.

Static Public Member Functions
static MeshManager &	getSingleton ()
	Override standard Singleton retrieval.

static MeshManager *	getSingletonPtr ()
	Override standard Singleton retrieval.

Static Public Member Functions inherited from Ogre::Singleton< MeshManager >
static MeshManager &	getSingleton ()

static MeshManager *	getSingletonPtr ()

Additional Inherited Members
Public Types inherited from Ogre::ResourceManager
typedef std::pair< ResourcePtr, bool >	ResourceCreateOrRetrieveResult

typedef map< ResourceHandle, ResourcePtr >::type	ResourceHandleMap

typedef unordered_map< String, ResourcePtr >::type	ResourceMap

typedef MapIterator< ResourceHandleMap >	ResourceMapIterator

typedef unordered_map< String, ResourceMap >::type	ResourceWithGroupMap

Public Attributes inherited from Ogre::ResourceManager
	OGRE_AUTO_MUTEX

Detailed Description

Handles the management of mesh resources.

Remarks: This class deals with the runtime management of mesh data; like other resource managers it handles the creation of resources (in this case mesh data), working within a fixed memory budget.

Constructor & Destructor Documentation

◆ MeshManager()

Ogre::MeshManager::MeshManager ( )

◆ ~MeshManager()

Ogre::MeshManager::~MeshManager ( )

override

Member Function Documentation

◆ _initialise()

void Ogre::MeshManager::_initialise ( )

Initialises the manager, only to be called by OGRE internally.

◆ _setVaoManager()

void Ogre::MeshManager::_setVaoManager ( VaoManager * vaoManager )

◆ create()

MeshPtr Ogre::MeshManager::create	(	const String &	name,
		const String &	group,
		bool	isManual = `false`,
		ManualResourceLoader *	loader = `0`,
		const NameValuePairList *	createParams = `0`
	)

Create a new mesh.

See also: ResourceManager::createResource

◆ createByImportingV1()

MeshPtr Ogre::MeshManager::createByImportingV1	(	const String &	name,
		const String &	groupName,
		v1::Mesh *	mesh,
		bool	halfPos,
		bool	halfTexCoords,
		bool	qTangents,
		bool	halfPose = `true`
	)

Imports a v1 mesh to new mesh, with optional optimization conversions.

Remarks: The vertex stream will be converted to a single interleaved buffer; i.e. if the original mesh had 3 vertex buffers: [1] = POSITION, POSITION, POSITION, POSITION, ... [2] = NORMALS, NORMALS, NORMALS, NORMALS, ... [3] = UV, UV, UV, UV, ... then the v2 mesh will have only 1 vertex buffer: [1] = POSITION NORMALS UV, POS NORM UV, POS NORM UV, POS NORM UV, ... Resulting mesh is reloadable as long as original mesh exists and is reloadable.

Parameters

name	The name to give the new mesh
groupName	The name of the resource group to assign the mesh to
mesh	The source v1 mesh to convert from. You can unload but should not delete this pointer if you want to be able to reload the converted mesh.
halfPos	True if you want to convert the position data to VET_HALF4 format. Recommended on desktop to reduce memory and bandwidth requirements. Rarely the extra precision is needed. Unfortuntately on mobile, not all ES2 devices support VET_HALF4.
halfTexCoords	True if you want to convert the position data to VET_HALF2 or VET_HALF4 format. Same recommendations as halfPos.
qTangents	True if you want to generate tangent and reflection information (modifying the original v1 mesh) and convert this data to a QTangent, requiring VET_SHORT4_SNORM (8 bytes vs 28 bytes to store normals, tangents and reflection). Needs much less space, trading for more ALU ops in the vertex shader for decoding the QTangent. Highly recommended on both desktop and mobile if you need tangents (i.e. normal mapping).
halfPose	True if you want the pose buffer to have pixel format PF_FLOAT16_RGBA which uses significantly less memory. Otherwise it is created with pixel format PF_FLOAT32_RGBA. Rarely the extra precision is needed.

◆ createManual()

MeshPtr Ogre::MeshManager::createManual	(	const String &	name,
		const String &	groupName,
		ManualResourceLoader *	loader = `0`
	)

Creates a new Mesh specifically for manual definition rather than loading from an object file.

Remarks: Note that once you've defined your mesh, you must call Mesh::_setBounds and Mesh::_setBoundingRadius in order to define the bounds of your mesh. In previous versions of OGRE you could call Mesh::_updateBounds, but OGRE's support of write-only vertex buffers makes this no longer appropriate.

Parameters

name	The name to give the new mesh
groupName	The name of the resource group to assign the mesh to
loader	ManualResourceLoader which will be called to load this mesh when the time comes. It is recommended that you populate this field in order that the mesh can be rebuilt should the need arise

◆ createOrRetrieve()

ResourceCreateOrRetrieveResult Ogre::MeshManager::createOrRetrieve	(	const String &	name,
		const String &	group,
		bool	isManual = `false`,
		ManualResourceLoader *	loader = `0`,
		const NameValuePairList *	params = `0`,
		BufferType	vertexBufferType = `BT_IMMUTABLE`,
		BufferType	indexBufferType = `BT_IMMUTABLE`,
		bool	vertexBufferShadowed = `true`,
		bool	indexBufferShadowed = `true`
	)

Create a new mesh, or retrieve an existing one with the same name if it already exists.

Parameters

vertexBufferUsage	The usage flags with which the vertex buffer(s) will be created
indexBufferUsage	The usage flags with which the index buffer(s) created for this mesh will be created with.
vertexBufferShadowed	If true, the vertex buffers will be shadowed by system memory copies for faster read access
indexBufferShadowed	If true, the index buffers will be shadowed by system memory copies for faster read access

See also: ResourceManager::createOrRetrieve

◆ getBoundsPaddingFactor()

Real Ogre::MeshManager::getBoundsPaddingFactor ( )

Gets the factor by which the bounding box of an entity is padded.

Default is 0.01

◆ getByName()

MeshPtr Ogre::MeshManager::getByName	(	const String &	name,
		const String &	groupName = `ResourceGroupManager::AUTODETECT_RESOURCE_GROUP_NAME`
	)

Get a resource by name.

See also: ResourceManager::getResourceByName

◆ getSingleton()

static MeshManager & Ogre::MeshManager::getSingleton ( )

static

Override standard Singleton retrieval.

Remarks: Why do we do this? Well, it's because the Singleton implementation is in a .h file, which means it gets compiled into anybody who includes it. This is needed for the Singleton template to work, but we actually only want it compiled into the implementation of the class based on the Singleton, not all of them. If we don't change this, we get link errors when trying to use the Singleton-based class from an outside dll.

: This method just delegates to the template version anyway, but the implementation stays in this single compilation unit, preventing link errors.

◆ getSingletonPtr()

static MeshManager * Ogre::MeshManager::getSingletonPtr ( )

static

Override standard Singleton retrieval.

Remarks: Why do we do this? Well, it's because the Singleton implementation is in a .h file, which means it gets compiled into anybody who includes it. This is needed for the Singleton template to work, but we actually only want it compiled into the implementation of the class based on the Singleton, not all of them. If we don't change this, we get link errors when trying to use the Singleton-based class from an outside dll.

: This method just delegates to the template version anyway, but the implementation stays in this single compilation unit, preventing link errors.

◆ load()

MeshPtr Ogre::MeshManager::load	(	const String &	filename,
		const String &	groupName,
		BufferType	vertexBufferType = `BT_IMMUTABLE`,
		BufferType	indexBufferType = `BT_IMMUTABLE`,
		bool	vertexBufferShadowed = `true`,
		bool	indexBufferShadowed = `true`
	)

Loads a mesh from a file, making it immediately available for use.

Note: If the model has already been created (prepared or loaded), the existing instance will be returned.

Remarks: Ogre loads model files from it's own proprietary format called .mesh. This is because having a single file format is better for runtime performance, and we also have control over pre-processed data (such as collision boxes, LOD reductions etc).

Parameters

filename	The name of the .mesh file
groupName	The name of the resource group to assign the mesh to
vertexBufferUsage	The usage flags with which the vertex buffer(s) will be created
indexBufferUsage	The usage flags with which the index buffer(s) created for this mesh will be created with.
vertexBufferShadowed	If true, the vertex buffers will be shadowed by system memory copies for faster read access
indexBufferShadowed	If true, the index buffers will be shadowed by system memory copies for faster read access

◆ loadResource()

void Ogre::MeshManager::loadResource ( Resource * res )

overridevirtual

Sets the listener used to control mesh loading through the serializer.

Gets the listener used to control mesh loading through the serializer.

See also: ManualResourceLoader::loadResource

Implements Ogre::ManualResourceLoader.

◆ prepare()

MeshPtr Ogre::MeshManager::prepare	(	const String &	filename,
		const String &	groupName,
		BufferType	vertexBufferType = `BT_IMMUTABLE`,
		BufferType	indexBufferType = `BT_IMMUTABLE`,
		bool	vertexBufferShadowed = `true`,
		bool	indexBufferShadowed = `true`
	)

Prepares a mesh for loading from a file.

This does the IO in advance of the call to load().

Note: If the model has already been created (prepared or loaded), the existing instance will be returned.

Remarks: Ogre loads model files from it's own proprietary format called .mesh. This is because having a single file format is better for runtime performance, and we also have control over pre-processed data (such as collision boxes, LOD reductions etc).

Parameters

filename	The name of the .mesh file
groupName	The name of the resource group to assign the mesh to
vertexBufferUsage	The usage flags with which the vertex buffer(s) will be created
indexBufferUsage	The usage flags with which the index buffer(s) created for this mesh will be created with.
vertexBufferShadowed	If true, the vertex buffers will be shadowed by system memory copies for faster read access
indexBufferShadowed	If true, the index buffers will be shadowed by system memory copies for faster read access

◆ setBoundsPaddingFactor()

void Ogre::MeshManager::setBoundsPaddingFactor ( Real paddingFactor )

Sets the factor by which the bounding box of an entity is padded.

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

OgreMeshManager2.h

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ MeshManager()

◆ ~MeshManager()

Member Function Documentation

◆ _initialise()

◆ _setVaoManager()

◆ create()

◆ createByImportingV1()

◆ createManual()

◆ createOrRetrieve()

◆ getBoundsPaddingFactor()

◆ getByName()

◆ getSingleton()

◆ getSingletonPtr()

◆ load()

◆ loadResource()

◆ prepare()

◆ setBoundsPaddingFactor()