-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 11/08/2010 04:52 PM, Roberto Garrido wrote: > Hi, > > We are looking for alternatives for crowd rendering with OSG. For the moment, > we have only found academic information, not actual implementations using > OSG. We have found out Geopostors, which seems to be a really promising > approach. > They render the entire geometry of the models for those which are close to > the camera, and they switch to a billboard for those that are far away. On > this billboard they render a 2D projection of the model, but having in mind > the position and orientation of the camera (They use some pre-cached images > taken from different points of view). > > So, do anybody know any implementation of any of these techniques that OSG > users could use?
Well, some years ago I was involved in some of the crowd rendering stuff using OSG/Delta. What exactly are you looking for? If you are looking for ready-made libraries, I am not aware of any, it is pretty much a fringe topic. However, some of the papers published by VRlab (vrlab.epfl.ch) should give you a good idea how to do it - we were able to run tens of thousands of human figures there, with the target being a million when I was leaving the lab (not sure whether they managed to achieve that). Even plain OSG/Delta 3D with Cal3D humans without impostors can do about 1000-2000 without major issues, of course depending on what do you want to do with them. Regards, Jan -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mandriva - http://enigmail.mozdev.org/ iD8DBQFM3Jrbn11XseNj94gRAmGsAJ9fb97w6T+23v//Z1vQ/A0eHVY6KQCguhcK 8MsJ3fFsDNoBVld094XfT+0= =Gq9F -----END PGP SIGNATURE----- _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
