The controls in the Surface Display rollout are the same as the display controls for NURBS surface objects, with two additional buttons: Set Selected and Reset.
When on, displays control lattices, in yellow lines. (You can change the lattice color by using the Colors panel of the Customize User Interface dialog. The Curve CV and Surface CV sub-object levels also have a local Display Lattice toggle, which overrides this global setting at the sub-object level. The Curve CV and Surface CV settings are independent. In other words, at the sub-object level, you can turn on the lattice for an object’s curves but not its surfaces, or vice versa.
When on, displays curves.
When on, displays surfaces.
When on, displays dependent sub-objects.
When on, displays surface trimming. When turned off, displays all of a surface even if it’s trimmed.
When on, transforming a NURBS surface can degrade its display in shaded viewports, to save time. This is similar to using the Adaptive Degradation toggle for playing animations. You can turn off this toggle so surfaces are always shaded while you transform them, but transforms can take longer to create.
Applies the display settings active in the utility to all selected NURBS objects.
Resets the values in the utility to the default settings for a NURBS surface.