Re: [osg-users] PagedLOD for shared nodes
Am 06.07.2011 00:33, schrieb Luigi Calori:
On 05/07/2011 20.32, Sebastian Messerschmidt wrote:
Am 05.07.2011 17:42, schrieb Chris 'Xenon' Hanson:
On 7/5/2011 5:50 AM, Sebastian Messerschmidt wrote:
Hi,
It seems like referencing e.g. tree1 multiple times in the graph
creates multiple render
instances instead of sharing the node. So loading the master.ive
almost certainly consumes
all available memory.
Is there an error in my thinking, that the nodes for tree1 ...
treeN can be shared whilst
being under a pagedLOD?
For some reason I thought there was already some sort of
object-loader sharing cache.
Okay, sorry for the noise. I've found a topic which already covers
this topic.
For sharing nodes you'll have to setup the viewer to explicitly use
shared nodes.
This way I've managed to display a huge database with some hotspots
Interesting... do you mind sharing the option / setup needed?
we could have similar problems
Sure, I was going to, but didn't have the piece of code checked in
yesterday, so here we go:
// setup shared handling
osgDB::Registry::instance()-getOrCreateSharedStateManager()-setShareMode(osgDB::SharedStateManager::SHARE_ALL);
osgDB::ReaderWriter::Options* opt =
osgDB::Registry::instance()-getOptions();
if (opt == NULL) {
opt = new osgDB::ReaderWriter::Options();
}
// setup chaching
opt-setObjectCacheHint(osgDB::ReaderWriter::Options::CacheHintOptions::CACHE_ALL);
osgDB::Registry::instance()-setOptions(opt);
I'm rather curious if there is some better documentation for things like
these.
cheers
sebastian
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[osg-users] PagedLOD for shared nodes
Hi, I have a very big OpenFlight based database in which I've converted the ProxyNodes for terrain-tiles into PagedLOD nodes. The general layout of the database looks like this: master |PagedLOD (flight_0_0) | |-PagedLOD(tree1) |-PagedLOD(tree1) |-PagedLOD(tree1) |-PagedLOD(tree2) |-PagedLOD(tree2) |-PagedLOD(house1) |-PagedLOD(house1) ... |PagedLOD (flight_12_1) |-PagedLOD(tree1) |-PagedLOD(tree1) |-PagedLOD(tree1) |-PagedLOD(tree2) |-PagedLOD(tree2) |-PagedLOD(house1) |-PagedLOD(house1) As you can see I've converted referenced external objects (former ProxyNodes) which have LODs themselves to PagedLOD nodes. All paged LODs (flight terrain tiles and references models such as tree1 .. treeN are single ive files) All ive files are exported noLoadExternalReferenceFiles and noTexturesInIVEFile to make sharing of textures and sub-externals possible With this setup I encounter a problem. It seems like referencing e.g. tree1 multiple times in the graph creates multiple render instances instead of sharing the node. So loading the master.ive almost certainly consumes all available memory. Is there an error in my thinking, that the nodes for tree1 ... treeN can be shared whilst being under a pagedLOD? cheers Sebastian ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] PagedLOD for shared nodes
On 7/5/2011 5:50 AM, Sebastian Messerschmidt wrote: Hi, It seems like referencing e.g. tree1 multiple times in the graph creates multiple render instances instead of sharing the node. So loading the master.ive almost certainly consumes all available memory. Is there an error in my thinking, that the nodes for tree1 ... treeN can be shared whilst being under a pagedLOD? For some reason I thought there was already some sort of object-loader sharing cache. -- Chris 'Xenon' Hanson, omo sanza lettere. xe...@alphapixel.com http://www.alphapixel.com/ Digital Imaging. OpenGL. Scene Graphs. GIS. GPS. Training. Consulting. Contracting. There is no Truth. There is only Perception. To Perceive is to Exist. - Xen ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] PagedLOD for shared nodes
Am 05.07.2011 17:42, schrieb Chris 'Xenon' Hanson: On 7/5/2011 5:50 AM, Sebastian Messerschmidt wrote: Hi, It seems like referencing e.g. tree1 multiple times in the graph creates multiple render instances instead of sharing the node. So loading the master.ive almost certainly consumes all available memory. Is there an error in my thinking, that the nodes for tree1 ... treeN can be shared whilst being under a pagedLOD? For some reason I thought there was already some sort of object-loader sharing cache. Okay, sorry for the noise. I've found a topic which already covers this topic. For sharing nodes you'll have to setup the viewer to explicitly use shared nodes. This way I've managed to display a huge database with some hotspots Thanks anyways ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
Re: [osg-users] PagedLOD for shared nodes
On 05/07/2011 20.32, Sebastian Messerschmidt wrote: Am 05.07.2011 17:42, schrieb Chris 'Xenon' Hanson: On 7/5/2011 5:50 AM, Sebastian Messerschmidt wrote: Hi, It seems like referencing e.g. tree1 multiple times in the graph creates multiple render instances instead of sharing the node. So loading the master.ive almost certainly consumes all available memory. Is there an error in my thinking, that the nodes for tree1 ... treeN can be shared whilst being under a pagedLOD? For some reason I thought there was already some sort of object-loader sharing cache. Okay, sorry for the noise. I've found a topic which already covers this topic. For sharing nodes you'll have to setup the viewer to explicitly use shared nodes. This way I've managed to display a huge database with some hotspots Interesting... do you mind sharing the option / setup needed? we could have similar problems Thanks -- Luigi Calori SuperComputing Applications and Innovation Department CINECA - via Magnanelli, 6/3, 40033 Casalecchio di Reno (Bologna) - ITALY Tel: +39 051 6171509 Fax: +39 051 6132198 hpc.cineca.it ___ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
