3D Graphics Programming with QuickDraw 3D 1.5.4

Highlight Styles

Labels

ASCII: HighlightStyle
Binary: high (= 0x68696768 )

Data Format

No data.

Data Size

Description

A highlight style object is used to specify attributes to be applied to selected geometric objects during rendering. Any renderer that supports highlighting will use the attributes specified by a highlight style object to override incompatible attributes assigned to affected geometric objects in other ways. The attributes specified by a highlight style object are applied to a geometric object only if that geometric object also has a highlight state attribute that is set to True . See "Highlight State" , for complete details on highlight state attributes.

Parent Hierarchy

Shared, shape, style.

Parent Objects

None.

Child Objects

Attribute set (required).

Example



 
BeginGroup ( DisplayGroup ( ) )

    Container (

        HighlightStyle ( )                      # highlight style object

        Container (

            AttributeSet ( )

            DiffuseColor ( 0 0 1 )              # highlight attribute

        )

    Container (

        Polygon ( ... )

        Container (

            AttributeSet ( )

            DiffuseColor ( 1 0 0 )

            HighlightState ( True )     # polygon will be highlighted

        )

    )

    Container (

        Box

        Container (

            AttributeSet ( )

            DiffuseColor ( 0 1 0 )

            HighlightState ( False )# box will not be highlighted

        )

    )

    Container (

        Line ( ... )                    # line will not be highlighted

        Container (                             

            AttributeSet ( )

            DiffuseColor ( 1 1 1 )

        )

    )

)

EndGroup ( )