| http://www.w3.org/ns/prov#value | - July 2002.</i> 47 <br> 48 <hr> 38 39<p>The OpenSceneGraph is an portable, high level graphics toolkit for the development of high peformance 40graphics applications such as flight simulators, games, virtual reality or scientific visualization. 41Providing an object orientated framework on top of OpenGL, it frees the developer 42from implementing and optimizing low level graphics calls, and provide
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