[osg-users] Extracting visible geometry

2008-02-28 Thread John Wilde
Hello OSG users: I am wondering what OSG can provide in solving the following problem: Given a scene with on the order of 100s of simple geometry elements (perhaps osg::Box types) and given an (x,y,z) position in that scene, I'd like 1) A list of all polygonal planes that are *visible* from the

[osg-users] Adding geometry to a scene (seeking advice)

2008-02-22 Thread John Wilde
Hi, I'm a new OpenSceneGraph user and am looking for some advice to get me started on an analysis I'm doing. The problem is to try and find safe paths through an urban environment - a path is considered more safe if the points along the path are not visible from windows on the buildings in the