Hi Nick, The IntersectionVisitor generally picks the highlest available level of detail to make sure it gets the most accurate results. Once I have some time available I will have a look at your change and consider the issue.
Robert. On 30 November 2016 at 00:09, Trajce Nikolov NICK <[email protected]> wrote: > Hi again Robert, > > attached is the mods to make it work with > USE_EYE_POINT_FOR_LOD_LEVEL_SELECTION too when traversing the PagedLODs. > For my end it works. I would make a pull request but stuck with 3.5.5 and it > is two additional lines of code. Please review... > > Thanks and cheers! > Nick > > On Tue, Nov 29, 2016 at 11:34 PM, Trajce Nikolov NICK > <[email protected]> wrote: >> >> Hi Robert, >> >> USE_EYE_POINT_FOR_LOD_LEVEL_SELECTION seams to not have effect no matter >> if it is selected or not. I traced the code and as is written now >> IntersectionVisitor::apply(osg::PagedLOD& plod) is working always with the >> highest res. >> >> // Perform an intersection test only on children that display >> // at the maximum resolution. >> >> I need this functionality to be able to pick on the level of detail based >> on the distance from the eyepoint. I am seeing there is a override for that >> but it is never used >> >> float IntersectionVisitor::getDistanceToEyePoint(const osg::Vec3& pos, >> bool /*withLODScale*/) const >> { >> if (_lodSelectionMode==USE_EYE_POINT_FOR_LOD_LEVEL_SELECTION) >> { >> return (pos-getEyePoint()).length(); >> } >> else >> { >> return 0.0f; >> } >> } >> >> If you are very busy and give some hints I can try to implement this >> functionality >> >> Thanks a lot! >> >> -- >> trajce nikolov nick > > > > > -- > trajce nikolov nick > > _______________________________________________ > 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
