Defines a part of a complete mesh. More...

#include <OgreSubMesh.h>

Inheritance diagram for Ogre::SubMesh:

Public Types
typedef ConstMapIterator< AliasTextureNamePairList >	AliasTextureIterator

typedef MapIterator< VertexBoneAssignmentList >	BoneAssignmentIterator

typedef std::vector< unsigned short >	IndexMap
	Dedicated index map for translate blend index to bone index (only valid if useSharedVertices = false). More...

typedef std::vector< IndexData * >	LODFaceList

typedef std::multimap< size_t, VertexBoneAssignment >	VertexBoneAssignmentList
	Multimap of verex bone assignments (orders by vertex index) More...

Public Member Functions
	SubMesh ()

	~SubMesh ()

void	_compileBoneAssignments (void)
	Must be called once to compile bone assignments into geometry buffer. More...

void	_getRenderOperation (RenderOperation &rend, ushort lodIndex=0)
	Returns a RenderOperation structure required to render this mesh. More...

void	addBoneAssignment (const VertexBoneAssignment &vertBoneAssign)
	Assigns a vertex to a bone with a given weight, for skeletal animation. More...

void	addTextureAlias (const String &aliasName, const String &textureName)
	Adds the alias or replaces an existing one and associates the texture name to it. More...

void	clearBoneAssignments (void)
	Removes all bone assignments for this mesh. More...

SubMesh *	clone (const String &newName, Mesh *parentMesh=0)
	Makes a copy of this submesh object and gives it a new name. More...

void	generateExtremes (size_t count)
	Generate the submesh extremes (. More...

AliasTextureIterator	getAliasTextureIterator (void) const
	Gets an constant iterator to access all texture alias names assigned to this submesh. More...

BoneAssignmentIterator	getBoneAssignmentIterator (void)
	Gets an iterator for access all bone assignments. More...

const VertexBoneAssignmentList &	getBoneAssignments ()
	Gets a const reference to the list of bone assignments. More...

const String &	getMaterialName (void) const

size_t	getTextureAliasCount (void) const
	Gets the number of texture aliases assigned to the sub mesh. More...

bool	getVertexAnimationIncludesNormals () const
	Returns whether animation on dedicated vertex data includes normals. More...

VertexAnimationType	getVertexAnimationType (void) const
	Get the type of any vertex animation used by dedicated geometry. More...

bool	hasTextureAliases (void) const
	returns true if the sub mesh has texture aliases More...

bool	isBuildEdgesEnabled (void) const
	Returns true(by default) if the submesh should be included in the mesh EdgeList, otherwise returns false. More...

bool	isMatInitialised (void) const
	Returns true if a material has been assigned to the submesh, otherwise returns false. More...

void	removeAllTextureAliases (void)
	removes all texture aliases from the sub mesh More...

void	removeTextureAlias (const String &aliasName)
	Remove a specific texture alias name from the sub mesh. More...

void	setBuildEdgesEnabled (bool b)

void	setMaterialName (const String &matName, const String &groupName=ResourceGroupManager::AUTODETECT_RESOURCE_GROUP_NAME)
	Sets the name of the Material which this SubMesh will use. More...

bool	updateMaterialUsingTextureAliases (void)
	The current material used by the submesh is copied into a new material and the submesh's texture aliases are applied if the current texture alias names match those found in the original material. More...

Public Attributes
IndexMap	blendIndexToBoneIndexMap

std::vector< Vector3 >	extremityPoints
	A list of extreme points on the submesh (optional). More...

IndexData *	indexData
	Face index data. More...

LODFaceList	mLodFaceList

RenderOperation::OperationType	operationType
	The render operation type used to render this submesh. More...

Mesh *	parent
	Reference to parent Mesh (not a smart pointer so child does not keep parent alive). More...

bool	useSharedVertices
	Indicates if this submesh shares vertex data with other meshes or whether it has it's own vertices. More...

VertexData *	vertexData
	Dedicated vertex data (only valid if useSharedVertices = false). More...

Friends
class	Mesh

class	MeshSerializerImpl

class	MeshSerializerImpl_v1_1

class	MeshSerializerImpl_v1_2

Detailed Description

Defines a part of a complete mesh.

Remarks: Meshes which make up the definition of a discrete 3D object are made up of potentially multiple parts. This is because different parts of the mesh may use different materials or use different vertex formats, such that a rendering state change is required between them.

: Like the Mesh class, instantiations of 3D objects in the scene share the SubMesh instances, and have the option of overriding their material differences on a per-object basis if required. See the SubEntity class for more information.

Member Typedef Documentation

◆ IndexMap

typedef std::vector<unsigned short> Ogre::SubMesh::IndexMap

Dedicated index map for translate blend index to bone index (only valid if useSharedVertices = false).

Remarks: This data is completely owned by this submesh.

: We collect actually used bones of all bone assignments, and build the blend index in 'packed' form, then the range of the blend index in vertex data VES_BLEND_INDICES element is continuous, with no gaps. Thus, by minimising the world matrix array constants passing to GPU, we can support more bones for a mesh when hardware skinning is used. The hardware skinning support limit is applied to each set of vertex data in the mesh, in other words, the hardware skinning support limit is applied only to the actually used bones of each SubMeshes, not all bones across the entire Mesh.

: Because the blend index is different to the bone index, therefore, we use the index map to translate the blend index to bone index.

: The use of shared or non-shared index map is determined when model data is converted to the OGRE .mesh format.

◆ LODFaceList

typedef std::vector<IndexData*> Ogre::SubMesh::LODFaceList

◆ VertexBoneAssignmentList

typedef std::multimap<size_t, VertexBoneAssignment> Ogre::SubMesh::VertexBoneAssignmentList

Multimap of verex bone assignments (orders by vertex index)

◆ BoneAssignmentIterator

typedef MapIterator<VertexBoneAssignmentList> Ogre::SubMesh::BoneAssignmentIterator

◆ AliasTextureIterator

typedef ConstMapIterator<AliasTextureNamePairList> Ogre::SubMesh::AliasTextureIterator

Constructor & Destructor Documentation

◆ SubMesh()

Ogre::SubMesh::SubMesh ( )

◆ ~SubMesh()

Ogre::SubMesh::~SubMesh ( )

Member Function Documentation

◆ setMaterialName()

void Ogre::SubMesh::setMaterialName	(	const String &	matName,
		const String &	groupName = `ResourceGroupManager::AUTODETECT_RESOURCE_GROUP_NAME`
	)

Sets the name of the Material which this SubMesh will use.

◆ getMaterialName()

const String& Ogre::SubMesh::getMaterialName ( void ) const

◆ isMatInitialised()

bool Ogre::SubMesh::isMatInitialised ( void ) const

Returns true if a material has been assigned to the submesh, otherwise returns false.

◆ _getRenderOperation()

void Ogre::SubMesh::_getRenderOperation	(	RenderOperation &	rend,
		ushort	lodIndex = `0`
	)

Returns a RenderOperation structure required to render this mesh.

Parameters

rend	Reference to a RenderOperation structure to populate.
lodIndex	The index of the LOD to use.

◆ addBoneAssignment()

void Ogre::SubMesh::addBoneAssignment ( const VertexBoneAssignment & vertBoneAssign )

Assigns a vertex to a bone with a given weight, for skeletal animation.

Remarks: This method is only valid after calling setSkeletonName. Since this is a one-off process there exists only 'addBoneAssignment' and 'clearBoneAssignments' methods, no 'editBoneAssignment'. You should not need to modify bone assignments during rendering (only the positions of bones) and OGRE reserves the right to do some internal data reformatting of this information, depending on render system requirements.

: This method is for assigning weights to the dedicated geometry of the SubMesh. To assign weights to the shared Mesh geometry, see the equivalent methods on Mesh.

◆ clearBoneAssignments()

void Ogre::SubMesh::clearBoneAssignments ( void )

Removes all bone assignments for this mesh.

: This method is for assigning weights to the dedicated geometry of the SubMesh. To assign weights to the shared Mesh geometry, see the equivalent methods on Mesh.

◆ getBoneAssignmentIterator()

BoneAssignmentIterator Ogre::SubMesh::getBoneAssignmentIterator ( void )

Gets an iterator for access all bone assignments.

Remarks: Only valid if this SubMesh has dedicated geometry.

◆ getBoneAssignments()

const VertexBoneAssignmentList& Ogre::SubMesh::getBoneAssignments ( )

inline

Gets a const reference to the list of bone assignments.

◆ _compileBoneAssignments()

void Ogre::SubMesh::_compileBoneAssignments ( void )

Must be called once to compile bone assignments into geometry buffer.

◆ getAliasTextureIterator()

AliasTextureIterator Ogre::SubMesh::getAliasTextureIterator ( void ) const

Gets an constant iterator to access all texture alias names assigned to this submesh.

◆ addTextureAlias()

void Ogre::SubMesh::addTextureAlias	(	const String &	aliasName,
		const String &	textureName
	)

Adds the alias or replaces an existing one and associates the texture name to it.

Remarks: The submesh uses the texture alias to replace textures used in the material applied to the submesh.

Parameters

aliasName	is the name of the alias.
textureName	is the name of the texture to be associated with the alias

◆ removeTextureAlias()

void Ogre::SubMesh::removeTextureAlias ( const String & aliasName )

Remove a specific texture alias name from the sub mesh.

Parameters

aliasName is the name of the alias to be removed. If it is not found then it is ignored.

◆ removeAllTextureAliases()

void Ogre::SubMesh::removeAllTextureAliases ( void )

removes all texture aliases from the sub mesh

◆ hasTextureAliases()

bool Ogre::SubMesh::hasTextureAliases ( void ) const

inline

returns true if the sub mesh has texture aliases

◆ getTextureAliasCount()

size_t Ogre::SubMesh::getTextureAliasCount ( void ) const

inline

Gets the number of texture aliases assigned to the sub mesh.

◆ updateMaterialUsingTextureAliases()

bool Ogre::SubMesh::updateMaterialUsingTextureAliases ( void )

The current material used by the submesh is copied into a new material and the submesh's texture aliases are applied if the current texture alias names match those found in the original material.

Remarks: The submesh's texture aliases must be setup prior to calling this method. If a new material has to be created, the subMesh autogenerates the new name. The new name is the old name + "_" + number.

Returns: True if texture aliases were applied and a new material was created.

◆ getVertexAnimationType()

VertexAnimationType Ogre::SubMesh::getVertexAnimationType ( void ) const

Get the type of any vertex animation used by dedicated geometry.

◆ getVertexAnimationIncludesNormals()

bool Ogre::SubMesh::getVertexAnimationIncludesNormals ( ) const

inline

Returns whether animation on dedicated vertex data includes normals.

◆ generateExtremes()

void Ogre::SubMesh::generateExtremes ( size_t count )

Generate the submesh extremes (.

See also: extremityPoints).

Parameters

count Number of extreme points to compute for the submesh.

◆ isBuildEdgesEnabled()

bool Ogre::SubMesh::isBuildEdgesEnabled ( void ) const

inline

Returns true(by default) if the submesh should be included in the mesh EdgeList, otherwise returns false.

◆ setBuildEdgesEnabled()

void Ogre::SubMesh::setBuildEdgesEnabled ( bool b )

◆ clone()

SubMesh* Ogre::SubMesh::clone	(	const String &	newName,
		Mesh *	parentMesh = `0`
	)

Makes a copy of this submesh object and gives it a new name.

Parameters

newName	The name to give the clone.
parentMesh	Optional mesh to make the parent of the newly created clone. If you leave this blank, the clone will be parented to the same Mesh as the original.

Friends And Related Function Documentation

◆ Mesh

friend class Mesh

friend

◆ MeshSerializerImpl

friend class MeshSerializerImpl

friend

◆ MeshSerializerImpl_v1_2

friend class MeshSerializerImpl_v1_2

friend

◆ MeshSerializerImpl_v1_1

friend class MeshSerializerImpl_v1_1

friend

Member Data Documentation

◆ useSharedVertices

bool Ogre::SubMesh::useSharedVertices

Indicates if this submesh shares vertex data with other meshes or whether it has it's own vertices.

Referenced by Ogre::Lod0Stripifier::StripLod0Vertices(), and Ogre::Lod0Stripifier::~Lod0Stripifier().

◆ operationType

RenderOperation::OperationType Ogre::SubMesh::operationType

The render operation type used to render this submesh.

◆ vertexData

VertexData* Ogre::SubMesh::vertexData

Dedicated vertex data (only valid if useSharedVertices = false).

Remarks: This data is completely owned by this submesh.

: The use of shared or non-shared buffers is determined when model data is converted to the OGRE .mesh format.

Referenced by Ogre::Lod0Stripifier::StripLod0Vertices(), and Ogre::Lod0Stripifier::~Lod0Stripifier().

◆ indexData

IndexData* Ogre::SubMesh::indexData

Face index data.

Referenced by Ogre::Lod0Stripifier::StripLod0Vertices().

◆ blendIndexToBoneIndexMap

IndexMap Ogre::SubMesh::blendIndexToBoneIndexMap

◆ mLodFaceList

LODFaceList Ogre::SubMesh::mLodFaceList

Referenced by Ogre::Lod0Stripifier::StripLod0Vertices(), and Ogre::Lod0Stripifier::~Lod0Stripifier().

◆ extremityPoints

std::vector<Vector3> Ogre::SubMesh::extremityPoints

A list of extreme points on the submesh (optional).

Remarks: These points are some arbitrary points on the mesh that are used by engine to better sort submeshes by depth. This doesn't matter much for non-transparent submeshes, as Z-buffer takes care of invisible surface culling anyway, but is pretty useful for semi-transparent submeshes because the order in which transparent submeshes must be rendered cannot be always correctly deduced from entity position.

: These points are intelligently chosen from the points that make up the submesh, the criteria for choosing them should be that these points somewhat characterize the submesh outline, e.g. they should not be close to each other, and they should be on the outer hull of the submesh. They can be stored in the .mesh file, or generated at runtime (see generateExtremes ()).

: If this array is empty, submesh sorting is done like in older versions - by comparing the positions of the owning entity.

◆ parent

Mesh* Ogre::SubMesh::parent

Reference to parent Mesh (not a smart pointer so child does not keep parent alive).

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

OgreSubMesh.h

Public Types

Public Member Functions

Public Attributes

Friends

Detailed Description

Member Typedef Documentation

◆ IndexMap

◆ LODFaceList

◆ VertexBoneAssignmentList

◆ BoneAssignmentIterator

◆ AliasTextureIterator

Constructor & Destructor Documentation

◆ SubMesh()

◆ ~SubMesh()

Member Function Documentation

◆ setMaterialName()

◆ getMaterialName()

◆ isMatInitialised()

◆ _getRenderOperation()

◆ addBoneAssignment()

◆ clearBoneAssignments()

◆ getBoneAssignmentIterator()

◆ getBoneAssignments()

◆ _compileBoneAssignments()

◆ getAliasTextureIterator()

◆ addTextureAlias()

◆ removeTextureAlias()

◆ removeAllTextureAliases()

◆ hasTextureAliases()

◆ getTextureAliasCount()

◆ updateMaterialUsingTextureAliases()

◆ getVertexAnimationType()

◆ getVertexAnimationIncludesNormals()

◆ generateExtremes()

◆ isBuildEdgesEnabled()

◆ setBuildEdgesEnabled()

◆ clone()

Friends And Related Function Documentation

◆ Mesh

◆ MeshSerializerImpl

◆ MeshSerializerImpl_v1_2

◆ MeshSerializerImpl_v1_1

Member Data Documentation

◆ useSharedVertices

◆ operationType

◆ vertexData

◆ indexData

◆ blendIndexToBoneIndexMap

◆ mLodFaceList

◆ extremityPoints

◆ parent