Hi Steven, I'm confused by what you are actually need to do on the OSG side. You talk about ray tracing on the OSG side, point clouds, and then talk about glReadPixels/glDrawPixels, to me they seem un-related so obviously I'm missing something key to what you are trying to do. Could you explain for a high level what steps you are taking to create the scene graph, what operations you need to do on it on the CPU/GPU and how you need to present/get the results.
Robert. On Tue, Jun 10, 2008 at 12:36 PM, Watkins, Steven M CIV NSWCDD, G24 <[EMAIL PROTECTED]> wrote: > Hi All > > I have implemented BRLCAD, which is a CSG based ray tracing api, into an > Openscenegraph application. I am currently displaying BRLCAD models in the > Openscenegraph world by generating a "point cloud" using the native BRLCAD > ray tracer and rendering that as Osg point geometry. > > I would like to display these BRLCAD models by ray trace in Openscenegraph > (yes, it will be slow!). I have done some searches through the archives and > have not found a lot of info. It appears that I am going to have to use > glReadPixels and glWritePixels prior to the swapbuffers (I am not using > osgViewer yet). Does anyone know of a better method to render via ray trace > in Openscenegraph? > > Thanks > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
