OGRE 2.1
Object-Oriented Graphics Rendering Engine
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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 ()
 
EdgeDataclone ()
 
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 *)
 
voidoperator new (size_t sz)
 
voidoperator new (size_t sz, const char *file, int line, const char *func)
 operator new, with debug line info
 
voidoperator new (size_t sz, void *ptr)
 placement operator new
 
voidoperator new[] (size_t sz)
 
voidoperator 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

◆ EdgeList

◆ 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

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

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
vertexSetThe vertex set we are updating
positionBufferThe 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
lightPos4D 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.


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