![]() ![]() There are thousands of Youtube videos showing how to build things in subd modeling. Another might be that you might see parallel episodes using different techniques. It is also part of their Convergent technology which brings these different data types together with traditional NURBS.īut Matt, doesn’t embracing subd throw away everything you’ve been doing on the Dezignstuff Episodes? Well, that’s one way of looking at it. To me, this is the obvious extension of synchronous technology (Siemens) that is already in NX. ![]() It’s a real innovation, not like moving the platform back to a mainframe-like cloud. And not just the future, this is happening now. What if there were a system that used different tools for what they were good for? Subd for shapes, NURBS for engineered features? This is the future of CAD. Can you imagine what it might be like not to worry about how to blend separate features anymore? Rhino 7 has subd modeling in beta currently Organic shapes are usually not mainly about accuracy anyway, they’re about shape. Or sketch-over-a-sketch level of accuracy. The downside? Well, it’s maybe not 100% dimensionally accurate. There’s just a bunch of shapes you push around on the screen until it’s right. This blog, and to be totally honest, much of the last 15 years of my life, has been dedicated to training people, writing about, and griping about how hard it is to do advanced surface modeling in a mechanical design software that was never really meant to do it. Product designers have to do this kind of thing very frequently. I even heard a rumor that another mid-range player is getting involved (and it’s not SW, although DS does have an offering in this space, it isn’t part of the current SW software). ![]() Subdivision modeling tools have been in Siemens NX for some time, and are now in Autodesk Fusion 360, and are coming in Rhino 7. A lot of types of data that have been misfits and off limits to us as engineering CAD users are quickly becoming required reading. ![]() You almost need to specialize to be able to afford stuff like that. Geomagic is the one tool that serious engineers can use to manipulate point-based data, and that’s expensive – like used car kind of expensive. I think mostly we scoffed because we couldn’t use that type of data in our work, and because we didn’t have the tools to work with it. Exactly the opposite of most of what we do. The characters wind up in games and movies, and in the imaginations of weekend CGI artists.ĬAD users have scoffed at that type of data because it is cheap, fast, organic-looking, and worst of all imprecise. All of those animated characters have a similar roundy bulbous look because they are made with the same tools and techniques. SubD has traditionally been the domain of applications like 3dsMax, Maya, Blender, Cinema4D, Zbrush, Mudbox, modo, etc. The Pixar engine drives most subd modelers It’s kind of like a 3D equivalent of a spline, where you move control points. You can tug and pull on the cage to change the shape of the surface. SubD, or sub division modeling, is a set of surfaces based on a cage of points. It’s like 3D CAD challenging 2D CAD in the mid 1990s. The more recent explosion of 3D scan and 3D print really pushes this data type right up in your face. Fusion 360 uses Tsplines for organic designĪs far as engineers would get involved would be a mesh in FEA or the export of an STL file – a set of points connected by lines to make polygonal shapes, tetrahedrals or quadrahedrals. They took another shot at it pre-2010 with better success, but it was still not really ready for prime time. The fact that it was so slow and you really couldn’t do much with it probably set back augmented reality by years. I remember back in the late 90s when the first push for VRML was such a huge disappointment. As CAD users we have been conditioned to recoil in horror whenever confronted with incoming data like STL, OBJ, XYZ, or a number of other types. I’ve been writing a little series of articles on various types of non-NURBS CAD data over on and. ![]()
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