Hi Sterling, How you want to go about the task depends very much of your specific needs. Is it sufficient for the any part of the object to be in the view frustum? Do you need to reject objects that are in the view frustum but wholly occluded by other nearer objects? Is ray based intersections appropriate? A polytope based intersections?
Robert. On 14 May 2012 16:43, Sterling Somers <[email protected]> wrote: > Hi, > > I am fairly new to OSG and have been slowly learning the basics. I am a > student and the basic theme of my research is to model human behaviour. I > have been interested in making our models more interesting by immersing them > into a 3D environment. To give the agent SOME sense of vision, I’d like to > be able detect which objects are viewable to the (automated, one day) viewer. > I do not know much about OSG but this seems like a plausible project. I > suspect I wouldn’t want to do it with the pickhandler, is that correct? Would > I have to do some sort of culling callback? I have been grasping at straws. > Basically, given a command, I’d like to my program to respond with what > objects are viewable, what it’s coordinates are, and if possible, the file > location for any sub-graphs. If I could get some opinions on whether this > would even be possible, that would be great. Some pointing in the right > direction would be ever greater. > > Thank you! > > > Sterling > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=47695#47695 > > > > > > _______________________________________________ > 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
