Hi Glenn, Vieewer::computeIntersections() won't work when you start using funky stuff like RTT Cameras, you'll need to implement your of IntersectVisitor/LineSegmentIntersector/PolytopeIntersector codes to the do the scene intersections and use the RTT Camera's view and projection matrix as a guide. The osgpick and osgintersection examples should be able to help guide you.
Robert. On Fri, May 16, 2008 at 3:09 PM, Glenn Waldron <[EMAIL PROTECTED]> wrote: > Hello all, > I could please use some guidance with the following problem. > > I have a typical scene graph and a simple viewer setup. I can run > Viewer::computeIntersections() on the scene and it works fine. > > Then I insert an RTT camera in order to render the graph to a texture. I > then map the texture to a simple quad and then display this quad alone > (using another Camera with an ABSOLUTE_RF reference frame and an ortho > projection). > > I would to be able to run computeIntersections() on the original scene graph > (which is now under the RTT camera) and have it work just as before. But I > have not been able to figure out how to make it work. The RTT camera does > not have a View, so I cannot call View::computeIntersections. I've tried > going through the code in View but still have not been able to figure it > out. > > I would welcome any pointers in getting this working. Hopefully I've > explained it adequately. > > -- > Glenn Waldron : Pelican Mapping : http://pelicanmapping.com : 703-652-4791 > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
