Method parse_material

entities/geometry/object.cpp:174–182

parse usemtl

// parse usemtl
std::optional<int> Object::parse_material(const std::string &line) const
{
    std::stringstream ss(line);

    std::string material_name;
    ss >> material_name;

    return find_material(material_name);
}

// parse newmtl
bool Object::parse_current_material(const std::string &line, std::string &current_name, Vec3 &current_diffuse, bool &have_active_material)