Obj I/O

Obj I/O. More...

Functions
template<typename FT >
void	Euclid::read_obj (const std::string &filename, std::vector< FT > &positions, std::vector< FT > *texcoords=nullptr, std::vector< FT > *normals=nullptr)
	Read Obj file. More...
template<int N, typename FT , typename IT >
void	Euclid::read_obj (const std::string &filename, std::vector< FT > &positions, std::vector< IT > &pindices, std::vector< FT > *texcoords=nullptr, std::vector< IT > *tindices=nullptr, std::vector< FT > *normals=nullptr, std::vector< IT > *nindices=nullptr)
	Read Obj file. More...
template<typename FT >
void	Euclid::write_obj (const std::string &filename, const std::vector< FT > &positions, const std::vector< FT > *texcoords=nullptr, const std::vector< FT > *normals=nullptr)
	Write Obj file.
template<int N, typename FT , typename IT >
void	Euclid::write_obj (const std::string &filename, const std::vector< FT > &positions, const std::vector< IT > &pindices, const std::vector< FT > *texcoords=nullptr, const std::vector< IT > *tindices=nullptr, const std::vector< FT > *normals=nullptr, const std::vector< IT > *nindices=nullptr)
	Write Obj file.

Detailed Description

Obj is a geometry file format developed by wavefront, capable of storing vertex positions, normals, and texcoordinates.

There are several kinds of keywords specified in an obj file format. However, we'll restrict ourselves to the face element and ignore the others including groupings and materials.

Function Documentation

template<typename FT >

void Euclid::read_obj	(	const std::string &	filename,
		std::vector< FT > &	positions,
		std::vector< FT > *	texcoords = nullptr,
		std::vector< FT > *	normals = nullptr
	)

Note

Note that the obj file format is primarily designed for rendering and the vertex properties may not refer to true geometric quantities. For example, the vertex of a cube may have one position but three normals corresponding to three faces. Thus the output properties may have different sizes.

template<int N, typename FT , typename IT >

void Euclid::read_obj	(	const std::string &	filename,
		std::vector< FT > &	positions,
		std::vector< IT > &	pindices,
		std::vector< FT > *	texcoords = nullptr,
		std::vector< IT > *	tindices = nullptr,
		std::vector< FT > *	normals = nullptr,
		std::vector< IT > *	nindices = nullptr
	)

Note

Note that the obj file format is primarily designed for rendering and the vertex properties may not refer to true geometric quantities. For example, the vertex of a cube may have one position but three normals corresponding to three faces. Thus the output properties may have different sizes, so as the indices.