<div dir="ltr"><font face="monospace, monospace" style="font-size:13px">Hello everyone,<br><br> I tried the ExternalVTK calls as instructed by the blog page and I am doing the following but for some reason VTK doesn't seem to render.<br><br>I am using Qt 5.4 as well. If someone could throw some light on how to mix native OpenGL calls with VTK renders I would really appreciate it.</font><div style="font-size:13px"><font face="monospace, monospace"><br></font></div><div style="font-size:13px"><font face="monospace, monospace"><div class="gmail_default" style="font-family:'courier new',monospace;display:inline">​Thank you very much</div></font></div><div style="font-size:13px"><font face="monospace, monospace"><div class="gmail_default" style="font-family:'courier new',monospace;display:inline">Ram.​</div><br><br><br>VisWidget::VisWidget( QWidget* parent, const GLWidget* shareWidget, Qt::WindowFlags f ): NEGLWidget( parent, shareWidget, f )<br><br>{<br>#if WIN32<br>    this->m_externalVTKWidget = vtkSmartPointer<ExternalVTKWidget>::New();<br>    this->m_renWin =<div class="gmail_default" style="display:inline">​ ​</div>vtkSmartPointer<vtkExternalOpenGLRenderWindow>::New();<br>    this->m_externalVTKWidget->SetRenderWindow( m_renWin.GetPointer() );<br>    this->m_ren    = vtkSmartPointer<vtkExternalOpenGLRenderer>( this->m_externalVTKWidget->AddRenderer() );<br>    this->m_cam    = vtkSmartPointer<vtkExternalOpenGLCamera>::New();<br>    m_ren->SetActiveCamera( this->m_cam );<br>#endif<br><br>    m_VTK = false;<br><br>}</font><div><font face="monospace, monospace"><br></font></div></div><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div style="font-size:13px"><br></div></div></blockquote></div></div></div>