Ogre::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>

List of all members.

Public Types

typedef std::vector< Triangle > TriangleList

typedef std::vector< Edge > EdgeList

typedef std::vector< EdgeGroup > EdgeGroupList

Public Member Functions

void updateTriangleLightFacing (const Vector4 &lightPos)

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

void updateFaceNormals (size_t vertexSet, HardwareVertexBufferSharedPtr positionBuffer)

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

void log (Log *log)

Public Attributes

TriangleList triangles

EdgeGroupList edgeGroups

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

Definition at line 42 of file OgreEdgeListBuilder.h.

Member Typedef Documentation

typedef std::vector<EdgeGroup> Ogre::EdgeData::EdgeGroupList

Definition at line 88 of file OgreEdgeListBuilder.h.

typedef std::vector<Edge> Ogre::EdgeData::EdgeList

Definition at line 74 of file OgreEdgeListBuilder.h.

typedef std::vector<Triangle> Ogre::EdgeData::TriangleList

Definition at line 73 of file OgreEdgeListBuilder.h.

Member Function Documentation

void Ogre::EdgeData::log ( Log * log )

void Ogre::EdgeData::updateFaceNormals ( size_t vertexSet,

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

void Ogre::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, ie establishing which tris are facing the light and which are facing away. This state is stored in the 'lightFacing' flag in each Triangle.

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

EdgeGroupList Ogre::EdgeData::edgeGroups

Definition at line 90 of file OgreEdgeListBuilder.h.

TriangleList Ogre::EdgeData::triangles

Definition at line 89 of file OgreEdgeListBuilder.h.

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

OgreEdgeListBuilder.h


Public Types
typedef std::vector< Triangle >	TriangleList
typedef std::vector< Edge >	EdgeList
typedef std::vector< EdgeGroup >	EdgeGroupList
Public Member Functions
void	updateTriangleLightFacing (const Vector4 &lightPos)
	Calculate the light facing state of the triangles in this edge list.
void	updateFaceNormals (size_t vertexSet, HardwareVertexBufferSharedPtr positionBuffer)
	Updates the face normals for this edge list based on (changed) position information, useful for animated objects.
void	log (Log *log)
Public Attributes
TriangleList	triangles
EdgeGroupList	edgeGroups