Using special-purpose groups
Selecting switch children
- Select which child to render by:
- Passing its child index to setWhichChild( )
- Or by passing in a special value:
- Render no children: CHILD_NONE
- Render all children: CHILD_ALL
- Or select a set of children with a bit mask
- A value of CHILD_MASK enables mask use
- Set a member of a Java BitSet for each child to render
