1aa0592878e1b138eb67205f2d6b7818667f8f8f
direction normal has a zero length. The net effect is that unidirectional light points with zero length direction vectors are now treated as omnidirectional light points."
Welcome to the OpenSceneGraph (OSG). For information on the project, this distribution, how to compile and run libraries and examples, and for documention open up index.html in your perfered html browser. Robert Osfield. robert@openscenegraph.com April 2002.
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