Ogre::v1::EdgeData Class Reference

This class contains the information required to describe the edge connectivity of a given set of vertices and indexes. More...

#include <OgreEdgeListBuilder.h>

Inheritance diagram for Ogre::v1::EdgeData:

Classes
struct	Edge
	Edge data. More...
struct	EdgeGroup
	A group of edges sharing the same vertex data. More...
struct	Triangle
	Basic triangle structure. More...

Public Types
typedef vector< EdgeGroup >::type	EdgeGroupList
typedef vector< Edge >::type	EdgeList
typedef std::vector< Vector4, STLAllocator< Vector4, CategorisedAlignAllocPolicy< MEMCATEGORY_GEOMETRY > > >	TriangleFaceNormalList
	Array of 4D vector of triangle face normal, which is unit vector orthogonal to the triangles, plus distance from origin.
typedef vector< char >::type	TriangleLightFacingList
	Working vector used when calculating the silhouette.
typedef vector< Triangle >::type	TriangleList

Public Member Functions
	EdgeData ()
EdgeData *	clone ()
void	log (Log *log)
	Debugging method.
void	operator delete (void *ptr)
void	operator delete (void *ptr, const char *, int, const char *)
void	operator delete (void *ptr, void *)
void	operator delete[] (void *ptr)
void	operator delete[] (void *ptr, const char *, int, const char *)
void *	operator new (size_t sz)
void *	operator new (size_t sz, const char *file, int line, const char *func)
	operator new, with debug line info
void *	operator new (size_t sz, void *ptr)
	placement operator new
void *	operator new[] (size_t sz)
void *	operator new[] (size_t sz, const char *file, int line, const char *func)
	array operator new, with debug line info
void	updateFaceNormals (size_t vertexSet, const HardwareVertexBufferSharedPtr &positionBuffer)
	Updates the face normals for this edge list based on (changed) position information, useful for animated objects.
void	updateTriangleLightFacing (const Vector4 &lightPos)
	Calculate the light facing state of the triangles in this edge list.

Public Attributes
EdgeGroupList	edgeGroups
	All edge groups of this edge list.
bool	isClosed
	Flag indicate the mesh is manifold.
TriangleFaceNormalList	triangleFaceNormals
	All triangle face normals.
TriangleLightFacingList	triangleLightFacings
	Triangle light facing states.
TriangleList	triangles
	Main triangles array, stores all triangles of this edge list.

Detailed Description

This class contains the information required to describe the edge connectivity of a given set of vertices and indexes.

Remarks

This information is built using the EdgeListBuilder class. Note that for a given mesh, which can be made up of multiple submeshes, there are separate edge lists for when

Member Typedef Documentation

EdgeGroupList

typedef vector<EdgeGroup>::type Ogre::v1::EdgeData::EdgeGroupList

EdgeList

typedef vector<Edge>::type Ogre::v1::EdgeData::EdgeList

TriangleFaceNormalList

typedef std::vector<Vector4, STLAllocator<Vector4, CategorisedAlignAllocPolicy<MEMCATEGORY_GEOMETRY> > > Ogre::v1::EdgeData::TriangleFaceNormalList

Array of 4D vector of triangle face normal, which is unit vector orthogonal to the triangles, plus distance from origin.

Use aligned policy here because we are intended to use in SIMD optimised routines.

TriangleLightFacingList

typedef vector<char>::type Ogre::v1::EdgeData::TriangleLightFacingList

Working vector used when calculating the silhouette.

Use std::vector<char> instead of std::vector<bool> which might implemented similar bit-fields causing loss performance.

TriangleList

typedef vector<Triangle>::type Ogre::v1::EdgeData::TriangleList

Constructor & Destructor Documentation

EdgeData()

Ogre::v1::EdgeData::EdgeData

(

)

Member Function Documentation

clone()

EdgeData * Ogre::v1::EdgeData::clone

(

)

log()

void Ogre::v1::EdgeData::log

(

Log *

log

)

Debugging method.

operator delete() [1/3]

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete ( void *  ptr )

inlineinherited

operator delete() [2/3]

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete ( void *  ptr, const char *  , int  , const char *    )

inlineinherited

operator delete() [3/3]

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete ( void *  ptr, void *    )

inlineinherited

operator delete[]() [1/2]

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete[] ( void *  ptr )

inlineinherited

operator delete[]() [2/2]

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete[] ( void *  ptr, const char *  , int  , const char *    )

inlineinherited

operator new() [1/3]

template<class Alloc >

void * Ogre::AllocatedObject< Alloc >::operator new ( size_t  sz )

inlineinherited

operator new() [2/3]

template<class Alloc >

void * Ogre::AllocatedObject< Alloc >::operator new ( size_t  sz, const char *  file, int  line, const char *  func  )

inlineinherited

operator new, with debug line info

operator new() [3/3]

template<class Alloc >

void * Ogre::AllocatedObject< Alloc >::operator new ( size_t  sz, void *  ptr  )

inlineinherited

placement operator new

operator new[]() [1/2]

template<class Alloc >

void * Ogre::AllocatedObject< Alloc >::operator new[] ( size_t  sz )

inlineinherited

operator new[]() [2/2]

template<class Alloc >

void * Ogre::AllocatedObject< Alloc >::operator new[] ( size_t  sz, const char *  file, int  line, const char *  func  )

inlineinherited

array operator new, with debug line info

updateFaceNormals()

void Ogre::v1::EdgeData::updateFaceNormals	(	size_t	vertexSet,
		const HardwareVertexBufferSharedPtr &	positionBuffer
	)

Updates the face normals for this edge list based on (changed) position information, useful for animated objects.

Parameters

vertexSet	The vertex set we are updating
positionBuffer	The updated position buffer, must contain ONLY xyz

updateTriangleLightFacing()

void Ogre::v1::EdgeData::updateTriangleLightFacing

(

const Vector4 &

lightPos

)

Calculate the light facing state of the triangles in this edge list.

Remarks

This is normally the first stage of calculating a silhouette, i.e. establishing which tris are facing the light and which are facing away. This state is stored in the 'triangleLightFacings'.

Parameters

lightPos

4D position of the light in object space, note that for directional lights (which have no position), the w component is 0 and the x/y/z position are the direction.

Member Data Documentation

edgeGroups

EdgeGroupList Ogre::v1::EdgeData::edgeGroups

All edge groups of this edge list.

isClosed

bool Ogre::v1::EdgeData::isClosed

Flag indicate the mesh is manifold.

triangleFaceNormals

TriangleFaceNormalList Ogre::v1::EdgeData::triangleFaceNormals

All triangle face normals.

It should be 1:1 with triangles.

triangleLightFacings

TriangleLightFacingList Ogre::v1::EdgeData::triangleLightFacings

Triangle light facing states.

It should be 1:1 with triangles.

triangles

TriangleList Ogre::v1::EdgeData::triangles

Main triangles array, stores all triangles of this edge list.

Note that triangles are grouping against edge group.

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

• OgreEdgeListBuilder.h