Navigation Support

• OpenGL or Performer with Cave Libs:
  User must write own navigation based on user input events

• OpenGL with Glut API on desktop (not cave):
  User provides actions to glutSpaceBall*Func,glutButtonBox*Func,glutTablet*Func, and menu system

• OpenInventor:
  SoXtExaminerViewer has built-in trackball navigation. This is OK for the desktop, but you won't be able to use the cave wand and tracker.