Manually and Automatically Ghost Objects

• Objects can be in one of three visibility states as indicated in the Objects palette: Visible - object is visible and can be selected. Ghosted - object shown in light grey wireframe and can’t be selected. Invisible - object is not visible and can’t be selected.
• You can manually change the visibility state by using the Ghost and UnGhost tools. Another method is to click in the 2nd column of the Objects palette.
• Objects can automatically change to ghosted with certain operations such as Booleans. For example, if you Boolean Difference object “Cube” with object “Cylinder” the result is a new object “Cube” and the original two operands are ghosted and remain in the Objects palette. If you need to access the original objects again simply UnGhost them.
• To temporarily hide all ghosted objects in your scene turn ON the Hide Ghosted option in Display Options palette
• To permanently delete all ghosted objects from your scene select Clear All Ghosted from the Edit pull-down menu This deletes objects ghosted manually with the Ghost tool and objects ghosted as a result of an operation.
• To delete only ghosted objects created as a result of an operation select Clear Ghosted Tool Operands from the Edit pull-down menu. All objects ghosted manually will remain in the Objects palette.
• Note, ghosted objects will increase file size.