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