std::vector<Object *> & scene_objects,

const std::string & filename) {

std::ifstream fileIn(filename);

std::string currLine;

getline(fileIn, currLine);

std::cout << "cl: " << currLine << std::endl;

assert(stringMatches(currLine, "ply"));

getline(fileIn, currLine);

assert(stringMatches(currLine, "format ascii 1.0"));

std::string currWord;

fileIn >> currWord;

assert(stringMatches(currWord, "element"));

fileIn >> currWord;

assert(stringMatches(currWord, "vertex"));

fileIn >> currWord;

std::string::size_type sz;

int numVertices = std::stoi(currWord, &sz);

std::cout << "num vertices = " << numVertices << std::endl;

getline(fileIn, currLine);

getline(fileIn, currLine);

assert(stringMatches(currLine, "property float x"));

getline(fileIn, currLine);

assert(stringMatches(currLine, "property float y"));

getline(fileIn, currLine);

assert(stringMatches(currLine, "property float z"));

fileIn >> currWord;

assert(stringMatches(currWord, "element"));

fileIn >> currWord;

assert(stringMatches(currWord, "face"));

fileIn >> currWord;

int numFaces = std::stoi(currWord, &sz);

std::cout << "num faces = " << numFaces << std::endl;

getline(fileIn, currLine);

getline(fileIn, currLine);

getline(fileIn, currLine);

assert(stringMatches(currLine, "end_header"));

std::vector<Vector3D> vertices;

for (int i = 0; i < numVertices; ++i) {

getline(fileIn, currLine);

std::istringstream iss(currLine);

iss >> currWord;

auto x = std::stod(currWord, &sz);

iss >> currWord;

auto y = std::stod(currWord, &sz);

iss >> currWord;

auto z = std::stod(currWord, &sz);

vertices.push_back(Vector3D(x, y, z));

}

for (int i = 0; i < numFaces; ++i) {

getline(fileIn, currLine);

std::istringstream iss(currLine);

iss >> currWord;

assert(currWord.compare("3") == 0);

iss >> currWord;

int iv1 = std::stoi(currWord, &sz);

iss >> currWord;

int iv2 = std::stoi(currWord, &sz);

iss >> currWord;

int iv3 = std::stoi(currWord, &sz);

Triangle * t = new Triangle(vertices[iv1], vertices[iv2], vertices[iv3], randColor());

scene_objects.push_back(dynamic_cast<Object *>(t));

}