Command entry: ![](../images/GUID-00A9C3E8-5814-4255-A1E2-8DB5CFC5D439-low.png)
Modify panel
![](../images/ac.menuaro.gif)
Select a NURBS object.
![](../images/ac.menuaro.gif)
Modifier stack display
![](../images/ac.menuaro.gif)
Surface sub-object level
![](../images/ac.menuaro.gif)
Select an independent CV surface sub-object.
![](../images/ac.menuaro.gif)
CV Surface rollout
![](../images/ac.menuaro.gif)
Rebuild button
The Rebuild button for CV surfaces opens this dialog. It lets you specify how to rebuild the surface. Rebuilding the surface
can change its appearance.
Interface
- Tolerance
-
Rebuilds the surface according to accuracy. The lower the Tolerance value, the more accurate the rebuild. Increasing Tolerance
enables the surface to be rebuilt using fewer CVs.
- Number
-
(The default.) Lets you alter the number of CVs in the surface. Number in U specifies the number in the U dimension, and Number
in V specifies the number in the V dimension. These values default to the numbers that already exist in the surface.
- Preview
-
When on (the default), your changes are previewed in viewports.