http://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/RenderPassExistingContext tyr to see what yoiu can get from that code example if you found more plz post it here -- View this message in context: http://vtk.1045678.n5.nabble.com/OpenGL-with-VTK-tp5685633p5685857.html Sent from the VTK - Users mailing list archive at Nabble.com.