An infill defines the contents of a curtain wall unit cell. A curtain wall unit cell can have the default simple panel or contain a nested grid, an AEC Polygon, door, window, or door/window assembly style. The object styles you use in infills must exist in the current drawing to be added to an infill definition. Panels typically represent glazing or other plain cladding, such as stone or concrete.
You can define as many infills as you need, and then use cell assignments to specify the cells that use each infill. You can modify, a default infill that is used for all unassigned cells.
Styles use the materials of the object style assigned to each panel. For example, if you specify an infill to use the Standard door/window assembly style, the materials of that infill are those designated in the door/window assembly style. Simple panels need material assigned in the curtain wall style.
If you do not use materials to control the display properties of infills, you can specify their display properties in the curtain wall unit style. The layer, color, linetype, and other display properties of the default infill are applied to all infills unless you create a custom display component for each infill definition. You can then control the display of each infill definition independently.