In the front viewport use
the "Rotate"
tool  , found
along the top toolbar, to position the hemisphere as
displayed in the image.With the object selected, right-click in the large white area below the object name, known as "the stack". A pop-up options menu will appear, as shown in this image. Select "Convert to Editable Mesh" to change the object from a gmax parametric object into a true mesh surface. A boolean operation will be used on this mesh shortly. Boolean operations perform much more reliably on non-parametric objects. |