std::vector<vec3> verts = {}; // array of vertices ┐ generally speaking, these arrays

std::vector<vec3> norms = {}; // array of normal vectors │ do not have the same size

std::vector<vec2> tex = {}; // array of tex coords ┘ check the logs of the Model() constructor

std::vector<int> facet_vrt = {}; // ┐ per-triangle indices in the above arrays,

std::vector<int> facet_nrm = {}; // │ the size is supposed to be

std::vector<int> facet_tex = {}; // ┘ nfaces()*3

TGAImage diffusemap = {}; // diffuse color texture

TGAImage normalmap = {}; // normal map texture

TGAImage specularmap = {}; // specular texture

public:

Model(const std::string filename);

int nverts() const; // number of vertices

int nfaces() const; // number of triangles

vec3 vert(const int i) const; // 0 <= i < nverts()

vec3 vert(const int iface, const int nthvert) const; // 0 <= iface <= nfaces(), 0 <= nthvert < 3

vec3 normal(const int iface, const int nthvert) const; // normal coming from the "vn x y z" entries in the .obj file

vec3 normal(const vec2 &uv) const; // normal vector from the normal map texture

vec2 uv(const int iface, const int nthvert) const; // uv coordinates of triangle corners

const TGAImage& diffuse() const;

const TGAImage& specular() const;