Hi all, I'm looking for a free vtk viewer for MS-Windows, which would support transparency and color control of several polydata. Thanks in advance. -- Perrine PAUL - PHD Student +33 2 23 23 49 91 +33 2 23 23 45 61 Laboratoire IDM, UPRES 3192 Université de Rennes 1, Faculté de médecine http://idm.univ-rennes1.fr