load obj rasterizer

void Rasterizer::LoadScene(string file_name) {


    vector<GLfloat> vertex_data = {};

    vector<Surface *> surfaces;
    vector<Material *> materials;

    LoadOBJ(file_name.c_str(), surfaces, materials, false, {0, 0, 0});

    for (int i = 0; i < surfaces.size(); i++) {
        Surface * surface = surfaces.at(i);

        int no_triangles = surface->no_triangles();
        Triangle * triangles = surface->get_triangles();

        for (int j = 0; j < no_triangles; j++) {
            Triangle  triangle = triangles[j];

            for (int k = 0; k < 3; k++) {
                Vertex vertex = triangle.vertex(k);

                // Push position data
                vertex_data.push_back(vertex.position.x);
                vertex_data.push_back(vertex.position.y);
                vertex_data.push_back(vertex.position.z);

                // Push texture coords
                //vertex_data.push_back(vertex.texture_coords->u);
                //vertex_data.push_back(vertex.texture_coords->v);
            }
        }
    }

    GLfloat vertices[vertex_data.size()];
    for (int i = 0; i < vertex_data.size(); i++)
        vertices[i] = vertex_data.at(i);


    printf("Loaded %d verticies & uv`s\n", vertex_data.size() / 3);

    no_of_verticies = vertex_data.size() / 3;
    const int vertex_stride = 0;



    // optional index array
    unsigned int indices[] = {};



    glGenVertexArrays( 1, &vao );
    glBindVertexArray( vao );


    glGenBuffers( 1, &vbo ); // generate vertex buffer object (one of OpenGL objects) and get the unique ID corresponding to that buffer
    glBindBuffer( GL_ARRAY_BUFFER, vbo ); // bind the newly created buffer to the GL_ARRAY_BUFFER target
    glBufferData( GL_ARRAY_BUFFER, sizeof( vertices ), vertices, GL_STATIC_DRAW ); // copies the previously defined vertex data into the buffer's memory
    // vertex position
    glVertexAttribPointer( 0, 3, GL_FLOAT, GL_FALSE, 0, (void*) 0 );
    glEnableVertexAttribArray( 0 );
    // vertex texture coordinates
    //glVertexAttribPointer( 1, 2, GL_FLOAT, GL_FALSE, 0, ( void* )( sizeof( float ) * 3 ) );
    //glEnableVertexAttribArray( 1 );



    //glGenBuffers( 1, &ebo );
    //glBindBuffer( GL_ELEMENT_ARRAY_BUFFER, ebo );
    //glBufferData( GL_ELEMENT_ARRAY_BUFFER, sizeof( indices ), indices, GL_STATIC_DRAW );



}