Do you have hangouts On Mar 31, 2020 14:42, "OpenSceneGraph Users" < osg-users@lists.openscenegraph.org> wrote:
> Hi Robert, > I stumbled upon this topic while I was looking for a similar problem that > I am having using osgEarth in an osgQt viewer. I am posting this message > here because I think that the two problems might be related and I hope that > you could help me. I am using OpenSceneGraph-3.6.5 and osgearth-2.10.1. > > I noticed it while I was coding my application but recently I saw that the > same error messages are displayed by osgviewerQt as well. > I am using a demo.earth file that uses local geotiff files stacked in a > composite image and, above that, I placed the following cache configuration: > > <options> > <cache driver="filesystem"> > <path>/home/emanuele/mapsCache</path> > </cache> > </options> > > If I run "osgviewer demo.earth", the globe is shown without any error > messages but if I run "osgviewerQt demo.earth", it happens something > similar to what Greg described in his post: if I run osgviewerQt with an > empty cache folder, no messages are printed but when I run osgviewerQt > again, a few error messages are printed... and I am not sure if the program > is loading images from the cache folder or from the specified files. The > messages disappear if I remove the cache section from the earth file. > They are the following: > > [osgEarth]* JSON decoding error: * Line 1, Column 67 > Missing '}' or object member name > > [osgEarth]* [TerrainLayer] Layer "image" Metadata appears to be corrupt. > [osgEarth]* JSON decoding error: * Line 1, Column 67 > Missing '}' or object member name > > [osgEarth]* [TerrainLayer] Layer "Elevation2" Metadata appears to be > corrupt. > [osgEarth]* JSON decoding error: * Line 1, Column 67 > Missing '}' or object member name > > [osgEarth]* [TerrainLayer] Layer "Elevation1" Metadata appears to be > corrupt. > [osgEarth]* JSON decoding error: * Line 1, Column 67 > Missing '}' or object member name > > [osgEarth]* [TerrainLayer] Layer "world-tiff" Metadata appears to be > corrupt. > [osgEarth]* JSON decoding error: * Line 1, Column 67 > Missing '}' or object member name > > [osgEarth]* [TerrainLayer] Layer "SermonetaWide" Metadata appears to be > corrupt. > [osgEarth]* JSON decoding error: * Line 1, Column 67 > Missing '}' or object member name > > The first error messages are printed as soon as I run the program, the > following appear when I zoom on the map. > I have already talked with Glenn Waldron (osgEarth) about this messages > and he thinks that, since osgviewer is working fine, they might be related > to some threading issues in osgQt. > > I'd really appreciate your help. Thank you, > Emanuele > > Il giorno lunedì 16 dicembre 2019 18:08:34 UTC+1, Robert Osfield ha > scritto: >> >> Hi Greg, >> >> Today I worked on improving the ObectCache::releaseGLObjects() >> implementation so that it removes objects in the scene that are Texture or >> contain Textures in their subgraph, where the Texture no longer have any >> associated osg::Image. I believe this resolves the usage case : >> >> 1. Load the scene graph, with the Texture UnRefImageAfterApply >> setiings are set to UnrefImageAfterApply, with the loaded textures/scene >> graphs being cached in the osgDB::ObjectCache. >> 2. Render the scene graph, resulting the in the scene graph images >> being unref'd from their Textures. >> 3. Close the Window, which cleans up the scene graph GL obects by >> calling releaseGLObjects() >> 4. Load a new scene graph with textures/objects loaded from disk and >> where possible from the ObjectCache if previously loaded and cache, Got >> back to 2. (Rendering etc.) >> >> I created an example that follows all these steps and it reproduced the >> problem with the textures appearing black on the second time around when >> loading an OpenFlight database. With the fixes to >> ObjectCache::releaseGLObjects() the unref'd images are automatically >> removed from the cache as part of step 3. above, so that they aren't shared >> any more, instead new copies are loaded from disk with their image in place. >> >> This fix is checked into the OpenSceneGraph-3.6 branch. The commit is: >> >> https://github.com/openscenegraph/OpenSceneGraph/commit/9ae4 >> 7b921b2184788e6efe85692908bd0ba900a2 >> >> Could you please test this out. You should be able to remove your own >> manually clearing of the ObjectCache now, as it will be done automatically >> when required. >> >> Cheers, >> Robert. >> > -- > You received this message because you are subscribed to the Google Groups > "OpenSceneGraph Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to osg-users+unsubscr...@googlegroups.com. > To view this discussion on the web visit https://groups.google.com/d/ > msgid/osg-users/93b6ffd8-b2e6-43c0-a6c8-3ef11949bbaf%40googlegroups.com > <https://groups.google.com/d/msgid/osg-users/93b6ffd8-b2e6-43c0-a6c8-3ef11949bbaf%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > _______________________________________________ > 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
