Level-of-detail nodes
The level-of-detail technique creates levels of detail or complexity for a given object, and provides certain hints to automatically choose the appropriate level of the object, for instance, according to the distance from the viewer. It decreases the complexity of the object's representation in the 3D world, and often has an unnoticeable quality loss on a distant object's appearance.
The osg::LOD node is derived from osg::Group and will use child nodes to represent the same object at varying levels of detail, ordered from the highest level to the lowest. Each level requires the minimum and maximum visible ranges to specify the ideal opportunity to switch with adjacent levels. The result of an osg::LOD node is a discrete amount ...
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