Hi guys, I'm new on VTK and I'm a Tcl developper. I'd like to know how can I put the render window into a Tcl canvas or frame (I don't know)? Thanks. Dr. Luigi Paioro CNR-IASF Istituto di Astrofisica Spaziale e Fisica Cosmica "G. Occhialini" via Bassini 15 - 20133 Milano, Italy e.mail: luigi at ifctr.mi.cnr.it phone: +39 02 23699349