gltrianglemesh.h Example File

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  #ifndef GLTRIANGLEMESH_H
  #define GLTRIANGLEMESH_H

  //#include <GL/glew.h>
  #include "glextensions.h"

  #include <QtWidgets>
  #include <QtOpenGL>

  #include "glbuffers.h"

  template<class TVertex, class TIndex>
  class GLTriangleMesh
  {
  public:
      GLTriangleMesh(int vertexCount, int indexCount) : m_vb(vertexCount), m_ib(indexCount)
      {
      }

      virtual ~GLTriangleMesh()
      {
      }

      virtual void draw()
      {
          if (failed())
              return;

          int type = GL_UNSIGNED_INT;
          if (sizeof(TIndex) == sizeof(char)) type = GL_UNSIGNED_BYTE;
          if (sizeof(TIndex) == sizeof(short)) type = GL_UNSIGNED_SHORT;

          m_vb.bind();
          m_ib.bind();
          glDrawElements(GL_TRIANGLES, m_ib.length(), type, BUFFER_OFFSET(0));
          m_vb.unbind();
          m_ib.unbind();
      }

      bool failed()
      {
          return m_vb.failed() || m_ib.failed();
      }
  protected:
      GLVertexBuffer<TVertex> m_vb;
      GLIndexBuffer<TIndex> m_ib;
  };

  #endif