VCG Libraryで色のついたポリゴンの読み込み・表示

class MyFace;
class MyVertex;
class MyEdge;

struct MyUsedTypes : public vcg::UsedTypes< /*省略*/> {};

class MyVertex : public vcg::Vertex< /*省略*/> {};

class MyFace : public vcg::Face  < 
  MyUsedTypes, 
  vcg::face::VertexRef, 
  vcg::face::Color4b,
  vcg::face::Normal3f, 
  vcg::face::Mark,
  vcg::face::BitFlags 
> {
};

class MyEdge : public vcg::Edge< /*省略*/> {};

class MyMesh : public vcg::tri::TriMesh< 
  std::vector<MyVertex>, 
  std::vector<MyFace>, 
  std::vector<MyEdge> > {
};

vcg::tri::io::ImporterPLY<MyMesh>::Open(mesh, "napple_face_color_0.ply");

  glBegin(GL_TRIANGLES);
  for (const auto& f : mesh.face) {
    glColor3ub(f.cC().X(), f.cC().Y(), f.cC().Z());
    for (size_t i = 0; i < 3; i++) {
      glVertex3d(f.cV(i)->cP().X(), f.cV(i)->cP().Y(), f.cV(i)->cP().Z());
    }
  }
  glEnd();

class MyVertex : public vcg::Vertex< 
  MyUsedTypes, 
  vcg::vertex::Coord3f,
  vcg::vertex::Color4b,
  vcg::vertex::Normal3f,
  vcg::vertex::Qualityf, 
  vcg::vertex::BitFlags, 
  vcg::vertex::Mark
> {
};

vcg::tri::io::ImporterPLY<MyMesh>::Open(mesh, "napple_vertex_color.ply");

  glBegin(GL_TRIANGLES);
  for (const auto& f : mesh.face) {
    for (size_t i = 0; i < 3; i++) {
      const MyVertex* pV = f.cV(i);
      glColor3ub(pV->cC().X(), pV->cC().Y(), pV->cC().Z());
      glVertex3d(pV->cP().X(), pV->cP().Y(), pV->cP().Z());
    }
  }
  glEnd();