Yes, I think so. There is also this command which may be interesting for you : --levels <begin_level> <end_level> Specify the range of levels that the next source Texture or DEM will contribute to.
http://www.openscenegraph.org/projects/VirtualPlanetBuilder/wiki/CommandLineOptions -- Christophe 2012/10/31 David Glenn <[email protected]> > O.K. Then the -l command sets the limit of the LOD you can have and not > how many LOD's your terrain is going to have! By default it maxes out at 30 > and the only reason to use it is to limit the LOD's (and detail) of your > terrain, Right? > > D Glenn > > > declic creation wrote: > > Hi David, > > > > If osgdem get to the level where the texture resolution is the highest > it stops, even if it's before the max number of levels you specified. > > So L11 might be the last level with the highest resolution texture for > your database. > > > > > > -- > > Christophe > > > > > > 2012/10/30 David Glenn < ()> > > > > > > > > robertosfield wrote: > > > > > > > Hi David, > > > > > > > > I can't recall all the options off the top of my head so with the > help > > > > of osgdem --help and grep I get: > > > > > > > > $ osgdem --help | grep LOD > > > > --LOD Create a LOD'd database. > > > > --PagedLOD Create a PagedLOD'd database. > > > > --subtile <LOD> <X> <Y> > > > > -l <numOfLevels> Specify the number of PagedLOD levels to generate. > > > > > > > > So the last one is the one you want, so just add a -l 5 or something > > > > similar to your osgdem or vpbmaster command line. > > > > > > > > Robert. > > > > > > > > > > > > > > > > On 5 September 2012 23:44, David Glenn <> wrote: > > > > > > > > > > > > > Greetings All! > > > > > > > > > > I'm just getting the time to do some real study on VPB and I had > some questions about LOD and controlling it! > > > > > > > > > > First of all, I'm going to reverence a tool that I know “Terra > Vista” for an example. If you don't know about this tool, I understand and > try to explain in more detail. > > > > > > > > > > One of the tricks you can do in Terra Vista is that you can limit > the amount of LOD's you can use in a given area over others. This allows > you to build terrain that has higher level of detail in some areas (where > it matters ) and allows other areas to max out at a lower level of detail. > This in the end would make the terrain take up less space than of all of > the terrain was at a high level of detail. > > > > > > > > > > I managed to get a group of satellite data at 1 meter resolution > and it works fine, but it's taking up over 50 gigs of Hard disk space. I > like to cut it back a bit so I can at lease maybe get it on a double layer > DVD, if not , a blue ray disk. I figure that if I can cut back on the > resolution in areas that I don’t need to be at 1 meter resolution, I can > cut the size in whole of the terrain to something more manageable. > > > > > > > > > > Dglenn > > > > > > > > > > ------------------------ > > > > > David Glenn > > > > > --------------- > > > > > D Glenn 3D Computer Graphics & Media Systems. > > > > > www.dglenn.com (http://www.dglenn.com) > > > > > > > > > > ------------------ > > > > > Read this topic online here: > > > > > http://forum.openscenegraph.org/viewtopic.php?p=49791#49791 ( > http://forum.openscenegraph.org/viewtopic.php?p=49791#49791) > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > > > osg-users mailing list > > > > > > > > > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org( > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org) > > > > > > > > > > > > > > _______________________________________________ > > > > osg-users mailing list > > > > > > > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org( > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org) > > > > > > > > ------------------ > > > > Post generated by Mail2Forum > > > > > > > > > > > > > Well, I have made some headway on Paged LOD's and made some terrains > files, but I also found something interesting and I was wondering is > someone can explain this to me! > > > > > > When I make a terrain with -l set to 20, I get a bunch of files titled > with the name, level of detail number, the X location in the grid and a Y > location on the grid fallowed with "_subtile"! I figured that I would find > at least 19 sets of files listed from L0 up to L19 or L20 but what I get is > 12 sets listed from L0 to L11. Can anyone explain this to me? I'm in the > middle of writing a paper on this and after reviewing code and files, I > thought I knew what was going on, but now I'm confused!! :? > > > > > > ------------------------ > > > David Glenn > > > --------------- > > > D Glenn 3D Computer Graphics & Media Systems. > > > www.dglenn.com (http://www.dglenn.com) > > > > > > ------------------ > > > Read this topic online here: > > > http://forum.openscenegraph.org/viewtopic.php?p=50901#50901 ( > http://forum.openscenegraph.org/viewtopic.php?p=50901#50901) > > > > > > > > > > > > > > > > > > _______________________________________________ > > > osg-users mailing list > > > () > > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org( > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org) > > > > > > > > > ------------------ > > Post generated by Mail2Forum > > > ------------------------ > David Glenn > --------------- > D Glenn 3D Computer Graphics & Media Systems. > www.dglenn.com > > ------------------ > Read this topic online here: > http://forum.openscenegraph.org/viewtopic.php?p=50922#50922 > > > > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org >
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