it seems i've solved with vtkAssembly, but vtkAssembly hasn't methods like getOutput or something like this...have you got any ideas about how could i use it with vtkPPLYWriter?? -- View this message in context: http://vtk.1045678.n5.nabble.com/writer-tp5044732p5046251.html Sent from the VTK - Users mailing list archive at Nabble.com.