text: // This file is part of libigl, a simple c++ geometry processing library.
  // 
  // Copyright (C) 2013 Alec Jacobson <alecjacobson@gmail.com>
  // 
  // This Source Code Form is subject to the terms of the Mozilla Public License 
  // v. 2.0. If a copy of the MPL was not distributed with this file, You can 
  // obtain one at http://mozilla.org/MPL/2.0/.
  #ifndef IGL_CREATE_MESH_VBO_H
  #define IGL_CREATE_MESH_VBO_H
  #ifndef IGL_NO_OPENGL
  #include "igl_inline.h"
  // NOTE: It wouldn't be so hard to template this using Eigen's templates
  
  #include <Eigen/Core>
  
  #include "OpenGL_convenience.h"
  
  // Create a VBO (Vertex Buffer Object) for a mesh. Actually two VBOs: one 
  // GL_ARRAY_BUFFER for the vertex positions (V) and one
  // GL_ELEMENT_ARRAY_BUFFER for the triangle indices (F)
  namespace igl
  {
  
    // Inputs:
    //   V  #V by 3 eigen Matrix of mesh vertex 3D positions
    //   F  #F by 3 eigne Matrix of face (triangle) indices
    // Outputs:
    //   V_vbo_id  buffer id for vertex positions
    //   F_vbo_id  buffer id for face indices
    //
    // NOTE: when using glDrawElements VBOs for V and F using MatrixXd and
    // MatrixXi will have types GL_DOUBLE and GL_UNSIGNED_INT respectively
    //
    IGL_INLINE void create_mesh_vbo(
      const Eigen::MatrixXd & V,
      const Eigen::MatrixXi & F,
      GLuint & V_vbo_id,
      GLuint & F_vbo_id);
  
    // Inputs:
    //   V  #V by 3 eigen Matrix of mesh vertex 3D positions
    //   F  #F by 3 eigne Matrix of face (triangle) indices
    //   N  #V by 3 eigen Matrix of mesh vertex 3D normals
    // Outputs:
    //   V_vbo_id  buffer id for vertex positions
    //   F_vbo_id  buffer id for face indices
    //   N_vbo_id  buffer id for vertex positions
    IGL_INLINE void create_mesh_vbo(
      const Eigen::MatrixXd & V,
      const Eigen::MatrixXi & F,
      const Eigen::MatrixXd & N,
      GLuint & V_vbo_id,
      GLuint & F_vbo_id,
      GLuint & N_vbo_id);
  
  }
  
  #ifndef IGL_STATIC_LIBRARY
  #  include "create_mesh_vbo.cpp"
  #endif
  
  #endif
  #endif
  