CompositeObj Namespace Reference

Commposite OBJ files loading. More...

Classes
struct	Material
	OBJ material descriptor. More...
struct	Object
	Associate a mesh and a material. More...
class	ObjectMaterialUse
	Associate an object and a material with geometry in an OBJ. More...
class	RawGeometry
	Contains all the geometry information from an OBJ file. More...

Functions
void	parseMultiObj (std::istream &objFile, RawGeometry &geometry, std::vector< std::string > &materialsFiles, std::vector< ObjectMaterialUse > &objectMatUses)
void	populateMesh (const RawGeometry &geom, size_t lowerBound, size_t upperBound, Mesh &mesh)
void	parseMtlFile (std::istream &inMat, const std::string &rootPath, std::unordered_map< std::string, Material > &materials)
int	load (const std::string &filePath, std::vector< Object > &objects, std::unordered_map< std::string, Material > &materials)

Detailed Description

Commposite OBJ files loading.

Function Documentation

load()

int CompositeObj::load	(	const std::string &	filePath,
		std::vector< Object > &	objects,
		std::unordered_map< std::string, Material > &	materials
	)

Load a multi-objects, multi-materials OBJ file.

Parameters

filePath	the path to the OBJ file
objects	will be filled the objects infos
materials	will be filled with the materials infos

Returns

an error code or 0

parseMtlFile()

void CompositeObj::parseMtlFile	(	std::istream &	inMat,
		const std::string &	rootPath,
		std::unordered_map< std::string, Material > &	materials
	)

Parse a MTL file to extract materials.

Parameters

inMat	the stream to parse
rootPath	the root path for all texture paths
materials	contains the materials that might be udpated by this file

parseMultiObj()

void CompositeObj::parseMultiObj	(	std::istream &	objFile,
		RawGeometry &	geometry,
		std::vector< std::string > &	materialsFiles,
		std::vector< ObjectMaterialUse > &	objectMatUses
	)

Parse an OBJ file to extract objects geometry, material library files and object-material associations.

Parameters

objFile	the stream to parse
geometry	will contain all the geometry stored in the file
materialsFiles	will contain a list of material files referenced.
objectMatUses	will contain a list of object/material associations.

populateMesh()

void CompositeObj::populateMesh	(	const RawGeometry &	geom,
		size_t	lowerBound,
		size_t	upperBound,
		Mesh &	mesh
	)

Build a mesh from a subset of the raw geometry data.

Parameters

geom	the raw geoemtry data
lowerBound	the index of the object first face
upperBound	the index after the object last face
mesh	will be updated with geoemtry data