Farshid, Thanks much for the input and addressing my questions. That is good news that the support is there.
I'm assuming the default is NO_LIMIT. Is this true? Thanks, -Shayne -----Original Message----- From: osg-users-boun...@lists.openscenegraph.org [mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Farshid Lashkari Sent: Tuesday, September 11, 2012 11:08 AM To: OpenSceneGraph Users Subject: Re: [osg-users] LineSegmentIntersector question... Hi Shayne, The base osgUtil::Intersector class supports setting the limits on intersection results, using the setIntersectionLimit() method. The current options are NO_LIMIT, LIMIT_ONE_PER_DRAWABLE, LIMIT_ONE, LIMIT_NEAREST. On Tue, Sep 11, 2012 at 9:47 AM, Tueller, Shayne R Civ USAF AFMC 519 SMXS/MXDEC <shayne.tuel...@hill.af.mil> wrote: 1) Does it support a feature of detecting a "hit" and then returning without the need to compute all the intersections? This would be sort of like a visibility test. Set the intersection limit to LIMIT_ONE 2) Does it have the ability to find the closest intersection without the need to compute all the intersections? In other words, does it step along from the starting point of the line segment until an intersection is found and then bail out? Set the intersection limit to LIMIT_NEAREST. This mode could be optimized more, but it will currently reject a subgraph if the nearest point of the bounding sphere is further than the nearest hit. So it can still provide significant savings in computation time. Cheers, Farshid 3) If it doesn't support these features, is it possible to modify the LineSegmentIntersector to support these? I would think that having this capability would improve performance where applicable. Thanks for any input in advance... -Shayne _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.or g _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
