CSCI441::ModelLoader Class Reference

Loads object models from file and renders using VBOs/VAOs. More...

#include <ModelLoader.hpp>

Public Member Functions
	ModelLoader ()
	Creates an empty model.
	ModelLoader (const char *filename)
	Loads a model from the given file.
	~ModelLoader ()
	Frees memory associated with model on both CPU and GPU.
	ModelLoader (const ModelLoader &)=delete
	do not allow models to be copied
ModelLoader &	operator= (const ModelLoader &)=delete
	do not allow models to be copied
bool	loadModelFile (std::string filename, bool INFO=true, bool ERRORS=true)
	Loads a model from the given file.
void	setAttributeLocations (GLint positionLocation, GLint normalLocation=-1, GLint texCoordLocation=-1) const
	Enables VBO attribute array locations.
bool	draw (GLuint shaderProgramHandle, GLint matDiffLocation=-1, GLint matSpecLocation=-1, GLint matShinLocation=-1, GLint matAmbLocation=-1, GLenum diffuseTexture=GL_TEXTURE0) const
	Renders a model.
GLuint	getNumberOfVertices () const
	Return the number of vertices the model is made up of. This value corresponds to the size of the Vertices, TexCoords, and Normals arrays.
GLfloat *	getVertices () const
	Return the vertex array that makes up the model mesh.
GLfloat *	getNormals () const
	Return the normal array that corresponds to the model mesh.
GLfloat *	getTexCoords () const
	Return the texture coordinates array that corresponds to the model mesh.
GLuint	getNumberOfIndices () const
	Return the number of indices to draw the model. This value corresponds to the size of the Indices array.
GLuint *	getIndices () const
	Return the index array that dictates the order to draw the model mesh.

Static Public Member Functions
static void	enableAutoGenerateNormals ()
	Enable auto-generation of vertex normals.
static void	disableAutoGenerateNormals ()
	Disable auto-generation of vertex normals.

Detailed Description

Loads object models from file and renders using VBOs/VAOs.

Constructor & Destructor Documentation

ModelLoader()

CSCI441::ModelLoader::ModelLoader ( const char *  filename )

inlineexplicit

Loads a model from the given file.

Parameters

filename

file to load model from

Member Function Documentation

disableAutoGenerateNormals()

void CSCI441::ModelLoader::disableAutoGenerateNormals ( )

inlinestatic

Disable auto-generation of vertex normals.

Warning

Must be called prior to loading in a model from file

Note

No normals are generated by default

To enable, call enableAutoGenerateNormals

draw()

bool CSCI441::ModelLoader::draw ( GLuint  shaderProgramHandle, GLint  matDiffLocation = -1, GLint  matSpecLocation = -1, GLint  matShinLocation = -1, GLint  matAmbLocation = -1, GLenum  diffuseTexture = GL_TEXTURE0  ) const

inline

Renders a model.

Parameters

shaderProgramHandle	shader program handle that
matDiffLocation	uniform location of material diffuse component
matSpecLocation	uniform location of material specular component
matShinLocation	uniform location of material shininess component
matAmbLocation	uniform location of material ambient component
diffuseTexture	texture number to bind diffuse texture map to

Returns

true if draw succeeded, false otherwise

enableAutoGenerateNormals()

void CSCI441::ModelLoader::enableAutoGenerateNormals ( )

inlinestatic

Enable auto-generation of vertex normals.

Warning

Must be called prior to loading in a model from file

Note

If an object model does not contain vertex normal data, then normals will be computed based on the cross product of vertex winding order.

No normals are generated by default

To disable, call disableAutoGenerateNormals

getIndices()

GLuint * CSCI441::ModelLoader::getIndices ( ) const

inline

Return the index array that dictates the order to draw the model mesh.

Returns

pointer to the index array

Note

For use with IBOs

getNormals()

GLfloat * CSCI441::ModelLoader::getNormals ( ) const

inline

Return the normal array that corresponds to the model mesh.

Returns

pointer to the normal array

Note

For use with VBOs

getNumberOfIndices()

GLuint CSCI441::ModelLoader::getNumberOfIndices ( ) const

inline

Return the number of indices to draw the model. This value corresponds to the size of the Indices array.

Returns

the number of indices when drawing the model

getNumberOfVertices()

GLuint CSCI441::ModelLoader::getNumberOfVertices ( ) const

inline

Return the number of vertices the model is made up of. This value corresponds to the size of the Vertices, TexCoords, and Normals arrays.

Returns

the number of vertices within the model

getTexCoords()

GLfloat * CSCI441::ModelLoader::getTexCoords ( ) const

inline

Return the texture coordinates array that corresponds to the model mesh.

Returns

pointer to texture coordinate array

Note

For use with VBOs

getVertices()

GLfloat * CSCI441::ModelLoader::getVertices ( ) const

inline

Return the vertex array that makes up the model mesh.

Returns

pointer to vertex array

Note

For use with VBOs

loadModelFile()

bool CSCI441::ModelLoader::loadModelFile ( std::string  filename, bool  INFO = true, bool  ERRORS = true  )

inline

Loads a model from the given file.

Parameters

filename	file to load model from
INFO	flag to control if informational messages should be displayed
ERRORS	flag to control if error messages should be displayed

Returns

true if load succeeded, false otherwise

setAttributeLocations()

void CSCI441::ModelLoader::setAttributeLocations ( GLint  positionLocation, GLint  normalLocation = -1, GLint  texCoordLocation = -1  ) const

inline

Enables VBO attribute array locations.

Parameters

positionLocation	attribute location of vertex position
normalLocation	attribute location of vertex normal
texCoordLocation	attribute location of vertex texture coordinate

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

• ModelLoader.hpp