Native CAD surfaces: xNURBS is based on NURBS, i.e., the native CAD surfaces, which can be directly used for any CAD modeling operations without geometry translation.Super robust: xNURBS is rock solid and works flawlessly.Easy to use: It uses one simple UI for all kinds of NURBS modeling.xNURBS is one super powerful NURBS tool that fixes virtually all surfacing issues for existing CAD software.The generated surface quality is outstanding. High-quality surfaces: For a given set of constraints, xNURBS’ optimization algorithm uses an energy-minimization method to generate the smoothest NURBS surface among all possible solutions.Unlimited capacities for solving NURBS: Its optimization algorithm can solve virtually any NURBS surface in milliseconds (regardless of the constraints' complexity).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. The following is a short answer to 'why xNURBS'. SubD, or sub division modeling, is a set of surfaces based on a cage of points. XNURBS also produces a tutorial video, which explains the xNURBS settings in detail and helps users to understand how to use xNURBS efficiently and correctly. V6.1 includes a number of enhancements, e.g., improving surfacing quality and reducing the number of control points needed to satisfy the required precision, etc. And V4/V5/V6 customers can get a free upgrade to V6.1. XNURBS announces the availability of Version 6.1.

Subd rhino 6