The video starts by examining SubD surfaces and how these compare to NURBS before moving on to look at some examples of how and why SubD can be used alongside the traditional NURBS workflow in Rhino. Similarly the Control Point Curve and Interpolated Curve have ‘SubD Friendly’ options that allow accurate SubD surfaces to be produced from a curve layout in a similar method that one might employ for NURBS modelling but with the advantage of the inherent smoothness of SubD surfaces. Rhino SubD objects are, however, high precision spline based surfaces and thus introduce a level of accuracy to the process of creating complex freeform. These include SubD (SubDivision) surfaces, which look to be great for exploring organic, manufacturable shapes in architecture, a new display pipeline, enhanced drawing creation, better rendering and easier access to Grasshopper scripts. Whilst traditional SubD ‘push-pull’ editing of edges, faces and vertices is enabled, Rhino’s surface commands such as Loft, Revolve, Sweep 1 & 2 and Extrude all now produce direct SubD output. Rhino 7 includes a host of other new features and is arguably the biggest release in the product’s history. This option is equivalent to the UseMesh option of the ToSubD command. The result will be slightly smaller or larger than the input shape. Off - The quad mesh vertices are used as SubD control polygon points. This is usually used for reverse engineering. Rhino SubD objects are, however, high precision spline based surfaces and thus introduce a level of accuracy to the process of creating complex freeform shapes. On - The quad mesh vertices are used as SubD vertices. If we step back to version 6, we have NURBS objects and meshes. “ Traditionally SubD objects are mesh based and lend themselves well to more approximate types of modelling such as character modelling and creating smooth organic forms that are controlled in an approximate fashion. SubD, or SubDivision surfaces are a new object type inside of Rhino.
0 Comments
Leave a Reply. |