Please go to vtk-examples.
Bill Lorensen, the owner of this site died on December 12 2019. If you want to read more about Bill's life and achievements, please see his obituary and the announcement on VTK Discourse: Bill Lorensen.
He devoted hundreds of hours creating this site for the VTK Examples. The new vtk-examples site builds upon his efforts. We deeply appreciate all the time and effort he invested.