A common Mesh, usually containing triagles or points. More...

#include <mesh.hpp>

Inheritance diagram for Tucano::Mesh:

Public Member Functions
	Mesh (void)
	Default Constructor. More...

int	getNumberOfElements (void)
	Returns the number of elements (primitives such as triangles) of the mesh. More...

int	getNumberOfVertices (void)
	Returns the number of vertices in the mesh. More...

void	resetLocations (void)
	Resets all vertex attributes locations to -1. More...

void	reset (void)

void	loadVertices (vector< Eigen::Vector4f > &vert)
	Load vertices (x,y,z,w) and creates appropriate vertex attribute. The default attribute name is "in_Position". Computes bounding box and centroid and normalization factors (scale). More...

void	loadNormals (vector< Eigen::Vector3f > &norm)
	Load normals (x,y,z) as a vertex attribute. More...

void	loadTexCoords (vector< Eigen::Vector2f > &tex, bool normalize=false)
	Load tex coords (u,v) as a vertex attribute. Optionally normalizes coords in range [0,1]. More...

void	loadColors (vector< Eigen::Vector4f > &clrs)
	Load colors (r,g,b,a) as a vertex attribute. More...

void	loadIndices (vector< GLuint > &ind)
	Load indices into indices array. More...

void	setDefaultAttribLocations (void)
	Sets default attribute locations. vertex coords -> location 0 normals -> location 1 colors -> location 2 texCoords -> location 3. More...

bool	hasAttribute (const string &name) const
	Returns wether an attribute exists or not. More...

VertexAttribute *	getAttribute (const string &name)
	Returns a pointer to an attribute Given an attribute name, searches to see if it exists, if so, returns a pointer to it. More...

void	setAttributeLocation (Shader *shader)
	Automatically sets the attribute locations for a given Shader. More...

void	setAttributeLocation (const Shader &shader)

void	setAttributeLocation (string name, GLint loc)
	Sets the location of a generic vertex attribute. More...

VertexAttribute *	createAttribute (string name, vector< Eigen::Vector4f > &attrib)
	Creates and loads a new mesh attribute of 4 floats. More...

VertexAttribute *	createAttribute (string name, vector< Eigen::Vector3f > &attrib)
	Creates and loads a new mesh attribute of 3 floats. More...

VertexAttribute *	createAttribute (string name, vector< Eigen::Vector2f > &attrib)
	Creates and loads a new mesh attribute of 2 floats. More...

virtual void	bindBuffers (void)
	Binds all buffers. More...

virtual void	unbindBuffers (void)
	Unbinds all buffers. More...

virtual void	renderPoints (void)
	Render only points without index buffer. More...

virtual void	renderElements (void)
	Call the draw method for rendering triangles. This method requires that a index buffer has been created. More...

virtual void	renderLineLoop (void)
	Render all vertices as a continous line loop. More...

virtual void	renderPatches (void)
	Call the draw method for rendering patches. This method requires that a index buffer has been created. More...

virtual void	render (void)
	Render the mesh triangles. The method binds the buffers, calls the method to render triangles, and then unbinds all buffers. Note that a index buffer is necessary. More...

void	createParallelepiped (float x, float y, float z)
	Sets the mesh as a Parallelpiped with given dimensions, scales so larger side is equal to 1. More...

void	createQuad (void)
	Sets the mesh as Unit Quad. More...

Public Member Functions inherited from Tucano::Model
	Model (void)

Eigen::Vector4f	getColor (void)
	Returns the default color of the model. More...

void	setColor (const Eigen::Vector4f &color)
	Sets the default color of the model. More...

virtual Eigen::Vector3f	getObjectCenter (void) const
	Returns the center of the axis-aligned bounding box. More...

virtual Eigen::Vector3f	getCentroid (void) const
	Returns the centroid of the model. More...

virtual float	getBoundingSphereRadius (void) const

Eigen::Affine3f	getModelMatrix (void) const
	Returns the model matrix. More...

Eigen::Affine3f *	modelMatrix (void)
	Returns a pointer to the model matrix. More...

void	setModelMatrix (const Eigen::Affine3f &m)
	Sets the model matrix. More...

float	getScale (void) const
	Returns the scale factor for fitting the model inside a unit cube. More...

void	normalizeModelMatrix (void)
	Normalize model matrix to center and scale model. The model matrix will include a translation to place model's centroid at the origin, and scale the model to fit inside a unit sphere. More...

void	desnormalizeModelMatrix (void)
	Desnormalize model matrix. More...

void	resetModelMatrix (void)
	Resets the model matrix. More...

Protected Attributes
vector< Tucano::VertexAttribute >	vertex_attributes
	Array of generic attributes. More...

unsigned int	numberOfVertices = 0
	Number of vertices in vertices array. More...

unsigned int	numberOfNormals = 0
	Number of normals in normals array. More...

unsigned int	numberOfElements = 0
	Number of indices in indices array. More...

unsigned int	numberOfTexCoords = 0
	Number of texture coordinates in texCoords array. More...

unsigned int	numberOfColors = 0
	Number of colors in colors array. More...

GLuint	index_buffer_id = 0
	Index Buffer. More...

GLuint	vao_id = 0
	Vertex Array Object ID (VAO is just a descriptor, does not contain any data) More...

bool	willTessellate = false
	Variable indicating if there will be tessellation. More...

std::shared_ptr< GLuint >	index_buffer_sptr = 0
	Shared pointer for index buffer. More...

std::shared_ptr< GLuint >	vao_sptr = 0
	Shared pointer for vertex array object. More...

Protected Attributes inherited from Tucano::Model
Eigen::Affine3f	model_matrix
	Model matrix, holds information about the models location and orientation. More...

Eigen::Vector3f	objectCenter
	Center of the mesh object. More...

Eigen::Vector3f	centroid
	Object's centroid (different from center of bounding box) More...

float	radius
	Radius of the mesh bounding sphere. More...

float	scale
	The normalization scale factor, scales the model matrix to fit the model inside a unit cube. More...

Eigen::Vector4f	default_color = Eigen::Vector4f (0.7, 0.7, 0.7, 1.0)
	Default color. More...

Detailed Description

A common Mesh, usually containing triagles or points.

The Mesh class handles the buffers generation and usage. such as VBO. IBO. TBO... It also contains methods for simple meshes generation. (e.g. a quadrilateral or a cube) and a wavefront .obj loader. When a mesh is generated. geometrical computations are performed. detecting the center of the mesh through the axis-aligned bounding box and computing normalizating scale factors. The attribute locations are predefined in this class. being the location 0 used for Vertex Buffer. 1 for Normals Buffer. 2 for Color Buffer and 3 for TexCoord Buffer.

Constructor & Destructor Documentation

Tucano::Mesh::Mesh ( void )

inline

Default Constructor.

Member Function Documentation

virtual void Tucano::Mesh::bindBuffers ( void )

inlinevirtual

Binds all buffers.

If there is a index buffer it will also be binded. Then, binds one buffer for each vertex attribute.

VertexAttribute* Tucano::Mesh::createAttribute	(	string	name,
		vector< Eigen::Vector4f > &	attrib
	)

inline

Creates and loads a new mesh attribute of 4 floats.

Parameters

name	Name of the attribute.
attrib	Array with new attribute.

Returns: Pointer to created attribute

VertexAttribute* Tucano::Mesh::createAttribute	(	string	name,
		vector< Eigen::Vector3f > &	attrib
	)

inline

Creates and loads a new mesh attribute of 3 floats.

Parameters

name	Name of the attribute.
attrib	Array with new attribute.

Returns: Pointer to created attribute

VertexAttribute* Tucano::Mesh::createAttribute	(	string	name,
		vector< Eigen::Vector2f > &	attrib
	)

inline

Creates and loads a new mesh attribute of 2 floats.

Parameters

name	Name of the attribute.
attrib	Array with new attribute.

Returns: Pointer to created attribute

void Tucano::Mesh::createParallelepiped	(	float	x,
		float	y,
		float	z
	)

inline

Sets the mesh as a Parallelpiped with given dimensions, scales so larger side is equal to 1.

Parameters

x	Width
y	Height
z	Depth

void Tucano::Mesh::createQuad ( void )

inline

Sets the mesh as Unit Quad.

VertexAttribute* Tucano::Mesh::getAttribute ( const string & name )

inline

Returns a pointer to an attribute Given an attribute name, searches to see if it exists, if so, returns a pointer to it.

Parameters

name	Attribute name

Returns: Pointer to attribute, or NULL if it does not exist

int Tucano::Mesh::getNumberOfElements ( void )

inline

Returns the number of elements (primitives such as triangles) of the mesh.

Returns: Number of primitives.

int Tucano::Mesh::getNumberOfVertices ( void )

inline

Returns the number of vertices in the mesh.

Returns: Number of vertices.

bool Tucano::Mesh::hasAttribute ( const string & name ) const

inline

Returns wether an attribute exists or not.

Parameters

name	Name of attribute to be queried.

Returns: True if attribute exists, false otherwise.

void Tucano::Mesh::loadColors ( vector< Eigen::Vector4f > & clrs )

inline

Load colors (r,g,b,a) as a vertex attribute.

Parameters

clrs	Colors array.

void Tucano::Mesh::loadIndices ( vector< GLuint > & ind )

inline

Load indices into indices array.

Parameters

ind	Indices array.

void Tucano::Mesh::loadNormals ( vector< Eigen::Vector3f > & norm )

inline

Load normals (x,y,z) as a vertex attribute.

Parameters

norm	Normals list.

void Tucano::Mesh::loadTexCoords	(	vector< Eigen::Vector2f > &	tex,
		bool	normalize = `false`
	)

inline

Load tex coords (u,v) as a vertex attribute. Optionally normalizes coords in range [0,1].

Parameters

tex	Texture coordinates array.
normalize	If true normalizes the texcoords in range [0,1], otherwise does not normalize.

void Tucano::Mesh::loadVertices ( vector< Eigen::Vector4f > & vert )

inline

Load vertices (x,y,z,w) and creates appropriate vertex attribute. The default attribute name is "in_Position". Computes bounding box and centroid and normalization factors (scale).

Parameters

vert	Array of vertices.

virtual void Tucano::Mesh::render ( void )

inlinevirtual

Render the mesh triangles. The method binds the buffers, calls the method to render triangles, and then unbinds all buffers. Note that a index buffer is necessary.

virtual void Tucano::Mesh::renderElements ( void )

inlinevirtual

Call the draw method for rendering triangles. This method requires that a index buffer has been created.

virtual void Tucano::Mesh::renderLineLoop ( void )

inlinevirtual

Render all vertices as a continous line loop.

virtual void Tucano::Mesh::renderPatches ( void )

inlinevirtual

Call the draw method for rendering patches. This method requires that a index buffer has been created.

virtual void Tucano::Mesh::renderPoints ( void )

inlinevirtual

Render only points without index buffer.

void Tucano::Mesh::reset ( void )

inline

void Tucano::Mesh::resetLocations ( void )

inline

Resets all vertex attributes locations to -1.

void Tucano::Mesh::setAttributeLocation ( Shader * shader )

inline

Automatically sets the attribute locations for a given Shader.

For every mesh attribute, the Shader will be queried for an attribute with the same name, if one is found they will linked.

Parameters

shader A pointer to the given shader.

void Tucano::Mesh::setAttributeLocation ( const Shader & shader )

inline

void Tucano::Mesh::setAttributeLocation	(	string	name,
		GLint	loc
	)

inline

Sets the location of a generic vertex attribute.

Parameters

name	Name of the given attribute
loc	Location of the attribute.

void Tucano::Mesh::setDefaultAttribLocations ( void )

inline

Sets default attribute locations. vertex coords -> location 0 normals -> location 1 colors -> location 2 texCoords -> location 3.

virtual void Tucano::Mesh::unbindBuffers ( void )

inlinevirtual

Unbinds all buffers.

Member Data Documentation

GLuint Tucano::Mesh::index_buffer_id = 0

protected

Index Buffer.

std::shared_ptr< GLuint > Tucano::Mesh::index_buffer_sptr = 0

protected

Shared pointer for index buffer.

unsigned int Tucano::Mesh::numberOfColors = 0

protected

Number of colors in colors array.

unsigned int Tucano::Mesh::numberOfElements = 0

protected

Number of indices in indices array.

unsigned int Tucano::Mesh::numberOfNormals = 0

protected

Number of normals in normals array.

unsigned int Tucano::Mesh::numberOfTexCoords = 0

protected

Number of texture coordinates in texCoords array.

unsigned int Tucano::Mesh::numberOfVertices = 0

protected

Number of vertices in vertices array.

GLuint Tucano::Mesh::vao_id = 0

protected

Vertex Array Object ID (VAO is just a descriptor, does not contain any data)

std::shared_ptr< GLuint > Tucano::Mesh::vao_sptr = 0

protected

Shared pointer for vertex array object.

vector< Tucano::VertexAttribute > Tucano::Mesh::vertex_attributes

protected

Array of generic attributes.

bool Tucano::Mesh::willTessellate = false

protected

Variable indicating if there will be tessellation.

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

tucano/mesh.hpp

Public Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation