OpenSceneGraph 3.0

Changing global display settings

OSG manages a set of global display settings that are required by cameras, viewers, and other scene elements. It uses the singleton pattern to declare a unique instance of the container of all of these settings, by using the osg::DisplaySettings class. We can thus obtain the display settings instance at any time in our applications:

osg::DisplaySettings* ds = osg::DisplaySettings::instance();

The osg::DisplaySettings instance sets up properties requested by all newly created rendering devices, mainly OpenGL graphics contexts of rendering windows. Its characteristics include:

1. Set double or single buffering with the setDoubleBuffer() method. The default is on.
2. Set whether to use the depth buffer or not, via the setDepthBuffer() ...