In the Operation section of the Preferences dialog, the Optimized Fence Clipping setting affects the way that solids and surfaces are clipped. When this option is on (the default), fence operations that involve clipping (Clip and Void Clip) do not drop the solids or surfaces back to their basic components. In effect, the fence operation works like a boolean subtraction, where part of the solid or surface is removed.

As with other fence operations in 3D, the extent of a fence volume is defined by the fence, and the display depth of the view. When a circular fence is used, for example, it is similar to using a cylinder as the clipping template.

Optimized fence clipping is supported in all views, including camera views.