Hi everyone. Thanks you for all the input, here are the replies. @ Raffaele Fragapane Pity it doesn't work that way. This could be awesome to translate ICE calculations to drive common operators selection. Would this be something Houdini does?
@ Martin Yara Many thanks for this. Does exactly what I was looking for. Should be in http://rray.de/xsi/ :) @ Ciaran Moloney Ah I knew I was missing some property :D Even though selecting an edge and marking it hard affects both gourad shading and catmull edge weight, that ICE attribute seems to only affect shading and keep everythig hard when I activate Subdivision. Fortunately"self.EdgeCrease" works just fine! Thanks. @ Fabricio Chamon Java is not my beach, but many thanks for the example of a script getting ICE data into selection. Can be very usefull. So I had a problem and now more than way to solve it :D Cheers

