Base class that represents a group of vertices that together make a geometrical shape. More...

#include <OsirisSDK/OMesh.h>

Inheritance diagram for OMesh:

Public Types
enum	CullFace { CullFace_Undefined =-1, CullFace_Front =GL_FRONT, CullFace_Back =GL_BACK }
	Sets which face will be rendered when face culling is available. More...

enum	CullFront { CullFront_Undefined =-1, CullFront_CW =GL_CW, CullFront_CCW =GL_CCW }
	In order to be able to ascertain which face is the front when dealing with face culling, we use the order in which the vertices are laid on each triangle. More...

Public Member Functions
	OMesh (OShaderProgram *program=NULL)
	Class constructor. More...

virtual	~OMesh ()
	Class destructor.

void	setProgram (OShaderProgram *program)
	Sets a new shader program to be used to render the object. More...

OShaderProgram *	getProgram ()
	Returns the shader program used to render the object. More...

int	vertexCount () const
	Returns the number of vertices.

int	faceCount () const
	Returns the number of faces.

void	addVertexData (float vx, float vy, float vz)
	Add a vertex. More...

void	addIndexData (GLuint vi, GLuint vj, GLuint vk)
	Define a single triangle by the vertex indices. More...

OVector3	vertexData (int idx) const
	Access vertex data. More...

OVector3	indexData (int idx) const
	Access index information. More...

void	init ()
	Initializes the mesh buffers and shader attributes. More...

void	render (OMatrixStack *mtx)
	Starts the rendering process for the object. More...

void	setFaceCulling (bool enabled, CullFace face=CullFace_Undefined, CullFront front=CullFront_Undefined)
	Enables or disables face culling. More...

Protected Member Functions
virtual void	setupAdditionalVertexArrays ()
	Virtual method to be used by derived classes to set additional vertex data.

virtual void	setupAdditionalShaderLocations ()
	Virtual method to be used by derived classes to set additional shader parameters.

OMeshBuffer< float > *	vertexBuffer ()
	Returns the mesh vertex buffer. More...

OMeshBuffer< GLuint > *	indexBuffer ()
	Returns the mesh index buffer. More...

const OMeshBuffer< float > *	vertexBufferConst () const
	Read-only method to obtain the vertex buffer. More...

const OMeshBuffer< GLuint > *	indexBufferConst () const
	Read-only method to obtain the index buffer. More...

Detailed Description

Base class that represents a group of vertices that together make a geometrical shape.

Meshes are first defined by entering vertex data and indices. The mesh object can then be initialized and then redered.

Member Enumeration Documentation

enum OMesh::CullFace

Sets which face will be rendered when face culling is available.

See also: setFaceCulling()

Enumerator
CullFace_Undefined	Undefined face.
CullFace_Front	Front face.
CullFace_Back	Back face.

enum OMesh::CullFront

In order to be able to ascertain which face is the front when dealing with face culling, we use the order in which the vertices are laid on each triangle.

See also: setFaceCulling()

Enumerator
CullFront_Undefined	Undefined front face.
CullFront_CW	Front face is defined by clockwise vertex order.
CullFront_CCW	Front face is defined by counter-clockwise vertex order.

Constructor & Destructor Documentation

OMesh::OMesh ( OShaderProgram * program = NULL )

Class constructor.

Parameters

program Pointer to the shader program that will be used to render the object.

Member Function Documentation

void OMesh::addIndexData	(	GLuint	vi,
		GLuint	vj,
		GLuint	vk
	)

Define a single triangle by the vertex indices.

Parameters

vi	First triangle vertex index.
vj	Second triangle vertex index.
vk	Third triangle vertex index.

void OMesh::addVertexData	(	float	vx,
		float	vy,
		float	vz
	)

Add a vertex.

Parameters

vx	Vertex X axis component.
vy	Vertex Y axis component.
vz	Vertex Z axis component.

OShaderProgram * OMesh::getProgram ( )

Returns the shader program used to render the object.

Returns: Pointer to the shader program object.

OMeshBuffer< GLuint > * OMesh::indexBuffer ( )

protected

Returns the mesh index buffer.

Returns: Pointer to the mesh index buffer.

const OMeshBuffer< GLuint > * OMesh::indexBufferConst ( ) const

protected

Read-only method to obtain the index buffer.

Returns: Const pointer to the mesh index buffer.

OVector3 OMesh::indexData ( int idx ) const

Access index information.

Parameters

idx	Face index number.

Returns: OVector3 class object containing face vertex index data.

void OMesh::init ( )

Initializes the mesh buffers and shader attributes.

Must be called after all the vertex data is entered and before rendering.

void OMesh::render ( OMatrixStack * mtx )

Starts the rendering process for the object.

Parameters

mtx	Pointer to the matrix stack that contains all the transformations.

void OMesh::setFaceCulling	(	bool	enabled,
		CullFace	face = `CullFace_Undefined`,
		CullFront	front = `CullFront_Undefined`
	)

Enables or disables face culling.

Face culling is a feature designed to save perfomance. For three-dimentional and closed meshes, there is no need to render both sides of the triangles. By enabling face culling, only one face the triangles that makes the shape will be rendered by the rasterizer.

Parameters

enabled	Enable flag.
face	Face that will be rendered.
front	Defines which face is the front, by the order in which the vertices are set on the triangles.

void OMesh::setProgram ( OShaderProgram * program )

Sets a new shader program to be used to render the object.

Parameters

program Pointer to the new shader program.

OMeshBuffer< float > * OMesh::vertexBuffer ( )

protected

Returns the mesh vertex buffer.

Returns: Pointer to the mesh vertex buffer.

const OMeshBuffer< float > * OMesh::vertexBufferConst ( ) const

protected

Read-only method to obtain the vertex buffer.

Returns: Const pointer to the mesh vertex buffer.

OVector3 OMesh::vertexData ( int idx ) const

Access vertex data.

Parameters

idx	Vertex index numbrt.

Returns: OVector3 class object containing vector coordinates.

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

include/OsirisSDK/OMesh.h
src/OMesh.cpp

Public Types

Public Member Functions

Protected Member Functions

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation