// -----------------------------------------------------------

auto combineCallbackLambda = [](GLdouble coords[3], void* vertex_data[4], GLfloat weight[4], void** dataOut) mutable -> void CALLBACK

{

  GLdouble * *vertex_data1 = (GLdouble * *)vertex_data;

  GLdouble* vertex = new GLdouble[7];

  vertex[0] = coords[0];

  vertex[1] = coords[1];

  vertex[2] = coords[2];

  for (int i = 3; i < 7; i++)

    vertex[i] = weight[0] * vertex_data1[0][i] + weight[1] * vertex_data1[1][i] + weight[2] * vertex_data1[2][i] + weight[3] * vertex_data1[3][i];

  *dataOut = vertex;

};

void (*combineCallbackFunction)(GLdouble coords[3], void* vertex_data[4], GLfloat weight[4], void** dataOut) = combineCallbackLambda;

// ----------------------------但[]中含有捕获时不能转换-------------------------------

auto vertexCallbackLambda = [&genPositionList, &genTriangle, &genPointIndex](void* vertex_data) mutable -> void CALLBACK

{

  fprintf(stdout, "Tessellation vertexCallback");

  GLdouble* pt = (GLdouble*)vertex_data;

  genTriangle[genPointIndex++] = pt;

  if (genPointIndex >= 3)

  {

    genPositionList.push_back(genTriangle[0]);

    genPositionList.push_back(genTriangle[1]);

    genPositionList.push_back(genTriangle[2]);

    genPointIndex = 0;

  }

};

//void (*vertexCallbackFunction)(void*) = vertexCallbackLambda;