NURB modeling or, non uniform rational b-spline modeling creates 3d models with varying surface representations. This type of modeling allows for the curves that we see in sleek vehicle models and architecturally curved buildings.
 

Specific aspects of a NURB model include; knot vector, control points and the order of these items. Control points are arranged in a specific order, thereby creating the curve that is represented in the 3D model. Weight is applied to certain points on the curve and these weighted points account for the direction of the curve.
 

NURB models have grown popular in the creation of organic 3d models as the surfaces represented are actual curves, not tiny lines creating curved appearances like other 3D model creation software.
 

The use of NURBs within 3D modeling allows the user to create shape within its compact form. They allow mapping within the 3D space of the surface predetermined by control points. These control points determining the shape of the space, thereby resulting in a feasible 3D model.
The creation of NURBs has allowed higher level tools to be created. These tools include; positional continuity tools, tangential continuity tools as well as curvature continuity tools.
Some 3D model creation software has been created to use solely NURBs modeling processes. Maya is an example of this software. Maya has been adapted to use NURBs modeling and therefore is adequate for 3D modeling projects that require curved, detailed surfaces required in organic modeling.
 

There are many benefits to using NURBs curves in the creation of 3D models; they reduce the memory consumption when storing shapes, and using the curbs can create a wide variety of shapes in varying sizes. NURBs curves have the ability to be used in a 2 or 3D modeling space and therefore are a versatile design tool. The curves can be assessed using specific algorithms quickly and efficiently.