# How do you make a surface in Maya?

## How do you make a surface in Maya?

1. Select the surface on which you want to draw a curve-on-surface.
2. In the Status Line, click the “Make the selected object live” icon.
3. Choose Create > CV Curve Tool or Create > EP Curve Tool.
4. Draw a curve on the live surface.
5. When the curve is finished, click the “Make selected object live” icon again.

How do you smooth a NURBS surface?

Smooth a NURBS surface mesh with the Sculpt Geometry Tool

1. Select the surface or control vertices you want to sculpt.
2. From the Modeling menu set, select Surfaces > Sculpt Geometry Tool > .
3. In the Sculpt Parameters section, under Operation, click Smooth.

What is Nurb modeling?

Non-uniform rational basis spline (NURBS) is a mathematical model using basis splines (B-splines) that is commonly used in computer graphics for representing curves and surfaces. NURBS curves are commonly used in computer-aided design (CAD), manufacturing (CAM), and engineering (CAE).

### What is the difference between NURBS and polygons?

The difference between NURBS and Polygons is NURBS use curves and splines, whereas Polygons use flat and straight lines and vertices to create a mesh. NURBS are most commonly used in engineering models where accuracy is paramount. Polygons create solid planes and shapes by drawing lines between specific vertices.

What is a NURBS curve?

NURBS, Non-Uniform Rational B-Splines, are mathematical representations of 3D geometry that can accurately describe any shape from a simple 2D line, circle, arc, or curve to the most complex 3D organic free-form surface or solid.

How do you smooth out a surface in Maya?

Smooth a surface mesh

1. Select the surface, mesh(es), or control vertices you want to sculpt.
2. Choose one of the following to open the Sculpt Geometry Tool:
3. In the Sculpt Parameters section, under Operation, click Smooth.
4. Use the options under Sculpt Parameters to control how brushing smooths the surface mesh.

#### How do you smooth surfaces in Rhino?

To smooth part of a curve or surface

1. Select a curve, surface, or mesh to smooth.
2. To smooth a region, turn on control points, and select the control points in the region of the object to smooth.
3. Start the Smooth command.
4. Click the check boxes for the coordinate directions and adjust the Smooth factor.

What is NURBS Rhino?

Are NURBS still used?

Polygons, widely accepted as uncomplicated, offers quite a bit of flexibility, but NURBS offers some features and workflows that can simplify modeling workflow, especially with characters and hard-surface models; This is why NURBS are still a popular toolset in the VFX industry.

This gives NURBS the advantage that their resolution can be changed when rendering. Models that appear close to the camera can have higher tessellation settings than those farther away from the camera. One of the downsides of NURBS is that the surfaces themselves are made of four-sided patches.

What is NURBS in rhino?

What do you need to know about NURBS surfaces?

NURBS surfaces are based on Bezier curves or splines. Therefore, settings such as degree, fit points, control vertices, weights, and knot parameterization are important in defining a NURBS surface or curve. Splines are optimized to create NURBS surfaces, allowing you to control many of these options.

### How do you create a NURBS surface in Autodesk?

Two Methods for Creating NURBS Surfaces. There are two ways to create NURBS surfaces: SURFACEMODELINGMODE system variable. Use any of the surface creation commands while this system variable is set to 1. CONVTONURBS command. Convert any existing procedural surfaces to NURBS surfaces with this command.

How is the Nurb curve represented on the screen?

For editing purposes, it is usually represented on the screen by drawing a grid of lines on the surface called rows and columns.   Like the NURB curve, the surface is defined by vertex points that do not lie on the surface, but are organized as a rectangular matrix or grid of vertex points.

Can a NURB surface be used in a CAD program?

If you wish to transfer exact 3D curve and surface geometry to other CAD programs, you will have to use NURB surfaces (or a surface type which is mathematically compatible with NURBs).   For example, there are numerous companies that will take your computer-generated 3D shape and numerically cut a full-size model out of various materials.