protected override void OnOpenGlDeinit(GlInterface gl, int fb)
{
DisposeRenderer();
m_gl.BindVertexArray(0);
m_gl.DeleteVertexArrays(1, m_vao);
m_vao = null;
m_gl = null;
}
protected unsafe override void OnOpenGlInit(GlInterface gl, int fb)
{
m_gl = new GlInterfaceEx(gl);
// hook up debug handler
//m_debugProc = OnGlDebugMessage;
//gl.Enable(GL_DEBUG_OUTPUT);
//m_gl.DebugMessageCallback(m_debugProc, null);
// allocate vertex array object (VAO)
m_vao = new int[1];
m_gl.GenVertexArrays(1, m_vao);
m_gl.BindVertexArray(m_vao[0]);
// initialize Cubism renderer
TryUpdateRenderer();
m_time.Restart();
}