gltrianglemesh.h Example File

graphicsview/boxes/gltrianglemesh.h
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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