Summary

This chapter is mainly about the observation and transformation of the 3D world with the help of the osg::Camera class. In this chapter, we also introduced how to use the osgViewer::Viewer and osgViewer::CompositeViewer, which encapsulate the cameras, manipulators, and stereo supports in order to make them work together.

In this chapter, we specially covered:

  • How to set the view point, the view, and the projection matrix of a camera node, and how to define the rendering order of cameras, by using osg::Camera
  • Realization of the single viewer and composite viewer by using osgViewer::Viewer and osgViewer::compositeViewer
  • The management of global display settings as well as the population of stereo visualization by using osg::DisplaySettings

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