yes it's quite easy. you can convert your .iv files to vrml2 and then use the vtkVRMLImporter class to read them into a vtk application. -fd On Tue, Dec 28, 2004 at 12:25PM, Fred Dech said: > hi. > > is there any straightforward way to read Open Inventor files into VTK? > or else, to convert .iv files to .vtk file format for vtkPolyDataRead? > > thanks. > > --fred