if you have enabled TESTING and you have the correct VTK_DATA_ROOT set up, you may want to try bin/HybridCxxTests TestTDxGeo -D /local/VTKData -V Baseline/Hybrid/TestTDxGeo.png -I The source code is in VTK/Hybrid/Testing/Cxx/TestTDxGeo.cxx ----------------- Jean M. Favre Swiss National Supercomputing Center