Geno3D::Object Class Reference

#include <Object.hpp>

Inheritance diagram for Geno3D::Object:

Public Member Functions
void	load (std::string str)
void	load (std::istream &stream)
sf::VertexArray	render (std::vector< std::unique_ptr< Light >> &lights, const std::shared_ptr< Camera > &camera, int winHeight)
void	loadTexture (sf::Texture texture)
sf::Texture	getTexture ()
bool	isTextured ()
void	translate (float x, float y, float z) override
void	scale (float m) override
void	rotate (float x, float y, float z) override
void	transform (const Transformation &t) override

Private Member Functions
void	sortFaces (const Eigen::Matrix3Xf &projected)
	Sort the mesh faces by distance from the camera so they render in the correct order.
void	calcNormals ()
	Calculate vertex normals based on the mesh faces.

Private Attributes
sf::Texture	texture
	The texture to render with, if any.
bool	textured
	Has the object been textured.
Eigen::Matrix3Xf	verts
	The vertices of the object as points in 3D space.
std::vector< sf::Vector2f >	uvMap
	A list of normalised UV points to map the texture to the mesh.
std::vector< sf::Vector2f >	uvTexMap
	A list of scaled points to map this object's texture to the mesh.
std::vector< Eigen::Vector3i >	faces
	A list of faces made up of three vertices to use.
Eigen::Matrix3Xf	normals
	The object's vertex normals.
std::vector< Eigen::Vector3i >	texCoords
	A list of which UVs to use for each face.

Detailed Description

This class holds data about a 3D mesh. Provides utilities to load a mesh from an obj file.

Member Function Documentation

sf::Texture Geno3D::Object::getTexture ( )

inline

Retrieve the current texture of the object.

See Also

loadTexture()

isTextured()

References texture.

bool Geno3D::Object::isTextured ( )

inline

Check if a texture is loaded.

See Also

loadTexture()

getTexture()

References textured.

void Geno3D::Object::load

(

std::string

str

)

Load the mesh from a string in the format of an obj file.

Parameters

str	the string to parse

See Also

load(std::istream&)

void Geno3D::Object::load

(

std::istream &

stream

)

Load the mesh from a stream in the format of an obj file.

Parameters

stream

the stream to load

See Also

load(std::string)

References calcNormals(), faces, texCoords, uvMap, and verts.

void Geno3D::Object::loadTexture

(

sf::Texture

texture

)

Load a texture into the object. This marks the object as being textured so isTextured will return true if this function has been called.

Parameters

texture

the texture to load

See Also

getTexture()

isTextured()

References texture, textured, uvMap, and uvTexMap.

sf::VertexArray Geno3D::Object::render	(	std::vector< std::unique_ptr< Light >> &	lights,
		const std::shared_ptr< Camera > &	camera,
		int	winHeight
	)

Render the object as an SFML shape. Uses lighting and camera information to generate an sf::VertexArray object which can be rendered to a window.

Parameters

lights	a list of the lights in a scene
camera	the camera to use for the render
winHeight	the height of the window. Used to flip the image y-axis so the render is not inverted.

See Also

Light

Camera

References faces, normals, sortFaces(), texCoords, textured, uvTexMap, and verts.

void Geno3D::Object::rotate ( float  x, float  y, float  z  )

overridevirtual

Rotate by Euler angles, in radians.

Parameters

x	the angle to rotate by about the x-axis
y	the angle to rotate by about the y-axis
z	the angle to rotate by about the z-axis

Implements Geno3D::Transformable.

References normals, and verts.

void Geno3D::Object::scale ( float  m )

overridevirtual

Scale by a factor.

Parameters

m	the factor to scale by

Implements Geno3D::Transformable.

References verts.

void Geno3D::Object::transform ( const Transformation &  t )

overridevirtual

Transform by a compound transformation.

Parameters

t	the transformation to apply

Implements Geno3D::Transformable.

References Geno3D::Transformation::apply(), Geno3D::Transformation::determinant(), normals, and verts.

void Geno3D::Object::translate ( float  x, float  y, float  z  )

overridevirtual

Translate by a 3D vector.

Parameters

x	the amount to translate in the x-axis
y	the amount to translate in the y-axis
z	the amount to translate in the z-axis

Implements Geno3D::Transformable.

References verts.

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

• src/Object.hpp
• src/Object.cpp