FbxNode *node = scene->GetRootNode()->GetChild(0);
FbxGeometryConverter fbx_converter(node->GetFbxManager());
fbx_converter.Triangulate(node->GetNodeAttribute(), true);
mesh = node->GetMesh();
int num_vertices = mesh->GetPolygonVertexCount();
FbxVector4 *fbx_vertices = mesh->GetControlPoints();
int *fbx_triangle_vertices = mesh->GetPolygonVertices();
double x, y, z;
vector<vertex> vertices;
for (int vertex_index = 0; vertex_index < num_vertices; ++vertex_index)
{
    int index = fbx_triangle_vertices[vertex_index];
    x = (double)fbx_vertices[index][0];
    y = (double)fbx_vertices[index][1];
    z = (double)fbx_vertices[index][2];
    vertices.push_back(vertex(vector3(x, y, z), material(color(1, 0.5, 0.5), 0, 0, 0, 0, 1, 0)));
}