Just to kind of sum up what has been said here... To get the vertices and other vertex attributes, you use get* methods in the Geometry class. See the Geometry header file.
There could be dozens, possibly thousands of Geometry objects in your scene graph. You use a NodeVisitor to walk your scene graph and look for Geodes, then iterate over the Drawables that are attached to the Geodes, using dynamic_cast to access the Drawable as a Geometry. For more info here, grep for "NodeVisitor" in the OSG source code. NodeVisitors are used throughout OSG, so finding them should be easy. Also take a look at the Geode header, and note that Geometry derives from Drawable. Finally, the OSG Quick Start Guide has lots of applicable information that will help you out: http://stores.lulu.com/pmartz. It seems like there have been a lot of posts recently by people who have not bothered to take a look at this free resource. Paul Martz Skew Matrix Software LLC http://www.skew-matrix.com +1 303 859 9466 _______________________________________________ osg-users mailing list firstname.lastname@example.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org