Hi all, just to add that I also get clipping with the new modes from certain viewing angles. Sometimes the clipped edges rotate as the view moves and some parts jump in and out (dunno if this makes sense). I've thought about trying to debug it, but I have no idea where to start, the shaders look complex. Any documentation on the new modes or any related documentation on the methods used?
jp Jason Beverage wrote: > Hi Justin, > > I've experienced the same problem with the two new overlay modes. I'm > not sure what is wrong, but even the examples don't work correctly for > me. The only one that is consistent and works correctly is > OBJECT_DEPENDENT_WITH_ORTHOGRAPHICS_OVERLAY. > > Hopefully these issues will be resolved at some point as these are > really great features. > > Jason > > On Dec 6, 2007 4:35 PM, KSpam <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>> wrote: > > My application utilizes a large terrain database, and it relies > heavily on > osgSim::OverlayNode. > > Originally, I used OBJECT_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY for > the overlay > technique. With this technique, my application works properly; > however, it > is very resource intensive, and the overlay shapes are noticeably > pixelated. > > Ideally, I would like to switch to using > VIEW_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY as the overlay technique. > With this > technique, the overlay shapes look much better (no noticeable > pixelation). > Additionally, this technique significantly reduces the memory > footprint and > increases the frame rate of my application. Unfortunately, my > application > does not work properly. It appears that many of the overlay shapes are > getting partially or completely clipped, which results in an incomplete > overlay. > > VIEW_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY appears to be > highly-dependent on the > value of the overlay base height. This is a problem, as the terrain > elevation of my database is variable, and I am not able to find a > value that > works well from all viewing angles. > > What can I do to allow the VIEW_DEPENDENT_WITH_ORTHOGRAPHIC_OVERLAY > technique > to work better in my environment? > > Thanks, > Justin > _______________________________________________ > osg-users mailing list > [email protected] > <mailto:[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 -- This message is subject to the CSIR's copyright terms and conditions, e-mail legal notice, and implemented Open Document Format (ODF) standard. The full disclaimer details can be found at http://www.csir.co.za/disclaimer.html. This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. MailScanner thanks Transtec Computers for their support. _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
