That surface is roughly analogous to a Degree Three NURBS service in that it is curvature continuous although we can of course add creases to edges to give this definition that we see here across the top of the table. In SubD we don’t have the problem of managing continuity because the whole of this table is modelled as one continuous SubD surface. In the NURBS model anything that changes either of these two trimmed edges at the end of the transition may involve quite a bit of work in managing the continuity of the surface between those edges. This is modelled as a conventional NURBS polysurface and one of the areas where we may have an advantage with SubD is in creating variations of this transition between the underside of the table and the table leg. The first example I’d like to take a look at is this table design.
If you’re looking for a more in-depth video introduction to SubD in Rhino v7, what it is and why we need it, then I’d suggest looking at the video linked. I’m going to be using a Mac for this video, but the processes are, of course, also applicable to Windows. Whilst I’m looking at this, I’ll also show that SubD isn’t just about approximation – as Rhino SubD’s are spline based and have a set of specific commands just like their NURBS counterparts.įinally, I’ll look at using the new Multipipe command to quickly create viable geometry from simple lines, polylines and curves.
Secondly, I’ll look at using the advantages of SubD to circumnavigate some of the unavoidable topology issues that occur in NURBS modelling. I’m going to look at three key areas where a SubD workflow could be preferable to NURBS.įirstly, I’ll look at creating and Adjusting Transitions. Hi, I’m Phil from Simply Rhino and in this video, I’m going to take a look at one of the most noteworthy new features in Rhino 7 – and that, of course, is SubD Modelling. Watch this Rhino 7 SubD Video here (if you’d like to follow the video transcript then you’ll find it at the foot of this page): Multipipe command to quickly create viable geometry from simple lines, polylines and curves.Using the advantages of SubD to avoid topology issues that occur in NURBS modelling.Phil Cook from Simply Rhino looks at three areas where a SubD workflow could have advantages over NURBS, these are: This is shown using Rhino for Mac but is equally relevant to Rhino for Windows. This Rhino 3D v7 video takes a look at the new SubD modelling metaphor in Rhino v7.
There are many new features, including SubD tools (previously only available to users of the now defunct plugin T-Splines or otherwise in applications like 3ds Max, Maya, Blender and ZBrush), (run Rhino and Grasshopper within the BIM modeller Revit®), QuadRemesh (quickly create a quad mesh from NURBS geometry or meshes), new Rhino 7 Presentation tools and much, much more.
Rhino 7 is the most significant version upgrade for Rhino 3D in its history.