Try VTK_USE_X OFF VTK_USE_OFFSCREEN ON VTK_OPENGL_HAS_OSMESA ON VTK_MANGLED_MESA OFF googling also get you the results... -- View this message in context: http://vtk.1045678.n5.nabble.com/VTK-offscreen-rendering-tp4548419p4549328.html Sent from the VTK - Users mailing list archive at Nabble.com.