Mmmm... if you got no more ideas, don't bother searching. This smells like there's a memory leak around here (in my code, I guess). I'll keep you informed.
Sukender PVLE - Lightweight cross-platform game engine - http://pvle.sourceforge.net/ ----- "Sukender" <suky0...@free.fr> a écrit : > Hi Maria, > > Yes, I saw your post about this, and tried this kind of solution. > Unfortunately, the problem doesn't arise durung viewing but during > data preparation. The viewer isn't realized yet, and the database > paging functions are not being processed at this time. Registering to, > or clearing the DatabasePager have no effect. > > Thanks anyway. > > Sukender > PVLE - Lightweight cross-platform game engine - > http://pvle.sourceforge.net/ > > ----- "María Ten" <mate...@gmail.com> a écrit : > > > Hi Sukender, > > > > The DatabasePager only update correctly the timestamp of expired > > children if they are registered. After load a new PagedLOD with the > > fileName, it is registered automatically, but the level 0 PagedLOD > is > > not registered because you created it manually. Since it is not > > registered, the databasepager doesn't update the timestamp for the > > expired children of this PagedLOD. So the children are not expired > and > > they remain in memory. > > > > You have to call registerPagedLODs(rootNode)[1] after add the > PagedLOD > > to the scenegraph or call this method with the PagedLOD of level 0 > as > > parameter to force the DatabasePager to register it. For example: > > > > osg::ref_ptr<osg::PagedLOD> paged( new osg::PagedLOD ); > > paged->addChild(new osg::Node); > > paged->setFileName(1, pathTo3DFile); > > paged->setRange(0, dist, FLT_MAX); > > paged->setRange(1, 0, dist); > > viewer.getDatabasePager()->registerPagedLODs(paged.get()); > > > > We have the same issue in our application and calling this method > > works nice for us. > > > > Cheers, > > > > Maria. > > > > [1] OSG Reference to registerPagedLODs method: > > > http://www.openscenegraph.org/documentation/OpenSceneGraphReferenceDocs/a00163.html#2c20aad9d434a2a2d11b1c5d092d2e59 > > > > > > On Wed, Mar 23, 2011 at 11:54 AM, Laurens Voerman < l.voer...@rug.nl > > > > wrote: > > > > > > Hi Sukender, > > > > Your code can't cause the problem I suggested, so it must be > something > > else. I have no other suggestions to offer. > > > > Laurens. > > > > > > > > > > > > On 3/23/2011 11:12 AM, Sukender wrote: > > > > > > Hi Laurens, > > > > Thanks for the tip. But my function looks like: > > osg::ref_ptr<osg::PagedLOD> paged( new osg::PagedLOD ); > > paged->addChild(new osg::Node); > > paged->setFileName(1, pathTo3DFile); > > paged->setRange(0, dist, FLT_MAX); > > paged->setRange(1, 0, dist); > > > > I create an empty child at index 0, viewable from 'dist' to FLT_MAX. > > The second thing is not a child but a range+filename, viewable from > 0 > > to 'dist. > > This seems correct to me. > > > > Thoughts? > > > > Sukender > > PVLE - Lightweight cross-platform game engine - > > http://pvle.sourceforge.net/ > > > > ----- "Laurens Voerman"< l.voer...@rug.nl > a écrit : > > > > > > > > Hi Sukender, > > > > Just a guess here, > > > > when you say > > > Generate a PagedLOD, to load 'groupFile' > > do you call PagedLOD::addChild(Node *child, ....) ? > > > > for the pageLOD will then hold the child in memory until > > PagedLOD::removeExpiredChildren() is called. Normally this is done > in > > the frame loop (in updateSceneGraph()) but I think you're not in a > > frame > > loop (yet). > > > > Laurens. > > > > On 3/23/2011 10:19 AM, Sukender wrote: > > > > > > Hi Robert, > > > > Sorry for being too vague. It's a "data preparation + viewer" app, > > but the problem arises during the data preparation. Some data sets > do > > not present the symptoms whereas some others do... Here is a more > > detailed view of the problematic method, in pseudo-code: > > > > > > > > void function(Group& parent, const string& path) { > > If path is a directory > > osg::ref_ptr<osg::Group> group(new osg::Group); > > Foreach entry in the directory, do a recursive call: > > function(group, entry). > > > > > > write 'group' to disk, in 'groupFile' (somewhere out of the > > current directory structure) > > > > > > Generate a PagedLOD, to load 'groupFile' when below a given view > > distance (using group->getBound()) > > > > > > Add that PagedLOD to 'parent' > > unload the group (well, it's a local variable!) > > else if it's a 3D file > > Get the AABB of the 3D file (the file isn't loaded in memory) > > Generate a PagedLOD, to load the 3D file when below a given view > > distance (using AABB info) > > > > > > Add that PagedLOD to 'parent' > > } > > > > This makes memory rise very high and very quickly on a given > > dataset. This dataset is a hierarchical tree structure with at most > > 1000 3D files in each dir. What is strange is that the algorithm > seems > > quite straightforward. I'm just going crazy! I'm pretty sure there > is > > a stupid little thing around here that I didn't spot. Or is there > some > > OSG internal mechanism I didn't deactivate? > > > > > > > > Tries: > > - As I told, I wrote (before the method runs) > > options = osgDB::Registry::instance()->getOptions(); > > options->setBuildKdTreesHint(osgDB::Options::DO_NOT_BUILD_KDTREES); > > options->setObjectCacheHint(osgDB::Options::CACHE_NONE); > > - I also tried adding "databasePager.clear();" after writing the > > 'groupFile', but this doesn't change anything. > > > > > > > > Any idea? > > Many thanks. > > > > Sukender > > PVLE - Lightweight cross-platform game engine - > > http://pvle.sourceforge.net/ > > > > > > > > ----- "Robert Osfield"< robert.osfi...@gmail.com > a écrit : > > > > > > > > Hi Sukender, > > > > You explanation of what you are doing in your app is way too light > > for > > us to be able to guess what might be amiss. Are you running the > > viewer? Is it just data preperation? I haven't got a clue. > > > > Robert. > > > > On Tue, Mar 22, 2011 at 5:42 PM, Sukender< suky0...@free.fr > wrote: > > > > > > Hi all, > > > > Here's something strange: > > - I create PageLODs that will load files on disk when needed > > - I create Groups of PagedLODs > > - I write those groups to disk (OSGB/T format). They thus contain > > only few data (just nodes and paths where data is). > > > > > > - I create a PagedLOD which loads this newly file on disk. The > > group > > > > > > > > > > is theorically unloaded after this. > > > > > > > > When repeating this, my memory usage climbs very high... but the > > groups should not be in memory... I wrote > > > > > > osgDB::Options * options = > > osgDB::Registry::instance()->getOptions(); > > > > > > > > > > options->setBuildKdTreesHint(osgDB::Options::DO_NOT_BUILD_KDTREES); > > > > > > > > > > > > > > options->setObjectCacheHint(osgDB::Options::CACHE_NONE); > > But this doesn't change anything. > > And of course I finally run out of memory. > > For info, small graphs behave normally in osgViewer (nodes load > > when > > > > > > > > > > approaching, memory usage rises, etc.). > > > > > > > > Any idea? > > Thanks. > > > > Sukender > > PVLE - Lightweight cross-platform game engine - > > http://pvle.sourceforge.net/ > > > > > > _______________________________________________ > > osg-users mailing list > > osg-users@lists.openscenegraph.org > > > > > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > > > > > > > > > > > > > _______________________________________________ > > osg-users mailing list > > osg-users@lists.openscenegraph.org > > > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > > > _______________________________________________ > > osg-users mailing list > > osg-users@lists.openscenegraph.org > > > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > _______________________________________________ > > osg-users mailing list > > osg-users@lists.openscenegraph.org > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > _______________________________________________ > > osg-users mailing list > > osg-users@lists.openscenegraph.org > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > _______________________________________________ > > osg-users mailing list > > osg-users@lists.openscenegraph.org > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > > > > > > -- > > María Ten Rodríguez > > > > gvSIG 3D Blog: > > http://gvsig3d.blogspot.com > > > > Instituto de Automática e Informática Industrial > http://www.ai2.upv.es > > Ciudad Politécnica de la Innovación > > Universidad Politécnica de Valencia > > > > _______________________________________________ > > osg-users mailing list > > osg-users@lists.openscenegraph.org > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > _______________________________________________ > osg-users mailing list > osg-users@lists.openscenegraph.org > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
